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AMERICAN-MACHINIST-1922-page 2
January-5-Vol-56-No 1 starting at pg 33
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Antiquemachinery.com AMERICAN-MACHINIST-Jan 5 1922                      January-5-Vol-56-No 1
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                        Antiquemachinery.com
                          Machinery Magazine
                     January 12 1922 starting pg 34
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Buying-A M E R I C A N M A C H I N I S T-Section Vol. 56, No. 1
Cut Production Costs-With Modern Equipment.

LET'S START RIGHT NOW
to do those things necessary to bring conditions back to normal. We've faced business stag- nation long enough now to know what it means; so /et's go- let's get started on the right track again. This business de- pression will last just as long as the people of this co\untry sit back and wait for something to happen-we've got to make things happen.
We can accomplish nothing by waiting for the other fellow to start something-the chances are he is sitting back waiting for us. We've simply got to realize that it is up to everyone to do his share, and there never was a better time than right now to start the "ball a'rolling."
Then there is another and probably a much more threaten- ing angle to the situation. The period of prosperity just passed has witnessed a tremendous over-expansion in practically every industry, not only in this country, but throughout the entire civilized world. `As a consequence, today, and likely for many years to come, the facilities for production will be greater than the powers of absorption-which means the keenest kind of competition and the weeding out of the less stable and less progressive concerns in each industry. Business houses today are fighting for their very existence, and those who survive will be the ones that start now to reduce their costs and better their methods, in order to meet the keenest competition on a fair basis. ~
How should we begin? Where should we start?
If every manufacturer in the metal working industry would start by putting his own house in order, by replacing his old worn'-out tools with new and better machines, by weeding out bis obsolete equipment, and installing more modern, more prohtable equipment in its place, the first thing you know, we would have better business, things would begin to move again, and industry once more would "hit the trail" of progress. We, The American Tool Works Company, have already started. Since Jan. 1921, we have weeded out of our own plant, eighty-three machines of different kinds, and are now replacing them with the latest and most modern tools. By this we have provided business for the foundries, orders for the steel mills, and work for a number of men-in other words, we have "gone into action" in our own plant.
If you will do the same in yours, the other fellow the same in his, and so on, ad infinitum, this country would soon forget that there was a business depression, a readjustment period or a deflation spasm. It is up to every one of us to put our shoulder to the wheel, so let's go-a slang expression -yes-but chuck full of meaning and good advice.

The American Tool Works Co.
Cincinatti, Ohio, U. S. A.
LATHES PLANERS--SHAPERS RADIALS

This is the 6rst of a series of cost reducing advertisements. The president of every metal Fabricatz.ng plant in t country should hz.mselF read each and every one oF th advertisements, and then refer them to hz.s manager c superintendent.
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126

 Buying A M E R I C A N MACHINIST-Section Vol. 56, No, 1

Twin - Difflcultles Overcome, by a Twin - Service Dificulties in toolroom lathe work-particularly that of getting precision work at the lowest possible cost-and difhc"ulties in production work, have been met and defeated by Porter.-Cable Lathes-the Toolroom Lathe shown to the ri~ht and the Production Lathe shown below. Toolroom and Production Lathes have been designed and built to overcome the discouraging problems in these the two most important classes of lathe work. The Porter- Cable Toolroom Lathe in addition to its extreme ac- curacy has an important advantage over other tooiroom lathes. This is found in the Lead Screw, its bearings, control and operation. It has no gears-is not splined-and is used for threading only. The motion is perfectly smooth. There is no side strain, cramp or distortion. The Porter-Cable Production Lathe turns out work that is under 20 inches in length in such quantities and with such dependable accuracy, it has become a great favorite everywhere. Ask for Bulletins. The Porter-Cable Machine Company Syracuse, New York, U. S. A.

Experimental Work is Exacting Inventors and model makers deplore the fact that they can never get that exact touch to their work that they would give it themselves. They could put their theories in concrete form without a hitch by owning proper equipment, but heretofore the vari- ous machine tools required have proven far too expensive. To such we recommend the RIVETT No. 608 Back ,Geared 'Precision Lathe This lathe with its various attachments offers the resources of a practical machine shop on a small scale. Precision is the keynote of the entl're unit but it possesses not one delicate feature. When fully equipped this lathe will accomplish nearly every job known t o m achine shop pr act ice. C at alog ~08-B is the one to ask for. Rivett Lathe & Grinder Co. Rriohton District of Boston

Rivett Lathe & Grinder Co.
Brighton District of Boston
 
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Buying-A M E R I C A N M A C H I N I S T-Section Vol. 56, No. 1
Cut Production Costs-With Modern Equipment.

Facing and Turning Main Line Bearings
of the Franklin Automobile Crankshaft
Frorn a Report by Walter M. Sanford, Forernan oF Crankshaft Dept., H. H. Franklin Mtg. Co., Syracuse, N. Y.

To save time, money, and cut out the operation of expensive grinders was the reason that five Wickes Universal Crankshaft Lathes were recently installed in the Crankshaft Department of the H. H. Franklin Manufacturing Company, at Syracuse, New York.
These machines are used for the facing and turning operations on main line bearings of the Franklin Automobile Crankshaft. The photograph shows the turning of six-throw crankshafts, made of carbon steel, from which ~ in. of stock is removed. The average length of cut is about 2 in.

In comparison to the former methods employed on this par- ticular job, the Wickes Crankshaft Equipment saves about 1~ hours work on each shaft in producing the complete prod- uct. At present this houxly production is ten crankshafts, with one operator on the machine.
"The Wickes Crankshaft Equipment has lived up to our ex- pectations in every detail. It gives us a good saving in time, floorspace, and power. We consider it an excellent investment in production machinery."
This last paragraph is the opinion which Mr. Sanford holds of Wickes Crankshaft Equipment.

WICKES ~ BROTHERS
220 Water Street, Saginaw, Mich.
801 Fifth Ave., New York 736 White- Henry Bldg., Seattle, Wash.

 
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January 5, 1922` Cut Production Costs-With Modern Equipment
198 Should Be Included In Your 1922 Resolutions
A good resolution, for instance, to make is to do more of your short planing jobs this year on a Hendey Crank Shaper. This will save time and keep production costs down to the lowest notch.
You know where Hendey stands in the machine tool line and you can consequently have absolute confideuce in the accuracy and reliability of a Hendey Shaper. Get our "Shaper Bulletin."
THE HENDEY MACHINE CO.
Torrington, COnn.f U. S. A.
New York Office: 736 Singer Bldg. Chicago Office: 618 Washington Bldg.
Rochester Office: 521 Commerce Bldg. Boston Office: Oliver Bldg.
The Sherritt & Stoer Co., Philadelph~a; Laughlin-Barney Machinery Co., Pittsburgh; The W. M. Patti~on Supp~y Co., Cleveland and Detroit ; Walraven Company. Atlanta : Woodward-Wight & Co., Ne~ w Orleans; L. G. Henes, 75 Fremont St., San Francisco and 218 East 3rd St., Los Angeles, Cal.; Chas. Churchill & Co., Ltd., London; De- moors & Co., Brussels; A. R. Williams Machinery Co., Toronto, Ont.; Williams & Wilson, Montreal. Que.; W. R. Grace & Co. of N. Y. for China; Asano, Bassan & Co.. Tokio, JaPan.

Hendey 20-Inch Crank Metal Shaper.
 
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January 5, 1922 Cut Production Costs-With Modern Equipment Like the Barber Coleman Automatic Hob-Sharpening Machine.    edit
PAGE 41
Barber Coleman Automatic Hob-Sharpening Machine
    An automatic machine for sharpening hobs and formed cutters, and intended to reduce the time of sharpening as well as to make possible the performance 'of such work by an ordinary operator, has been devel- oped by the Barber Colman Co., Rockford, Il1., and is shown in Fig. 1. The machine was designed primarily for sharpening hobs up to 4 in. in diameter and 4 in. in length, but it is applicable also to the sharpening of formed cutters.
The hob being sharpened is indexed at the end of each complete to-and-fro stroke, the mechanism provided to index for different numbers of gashes being adjustable and providing a means of easy change. The mechanism used to give the desired helical angle on the hob permits of ready adjustment. The feed provided is adjustable and actuates once for each revolution of the hob, regard-
FIG. 1. BARBER-COLMAN HOB-SHARPENING MACHINE: less of the number of gashes. The faces of the hob teeth are ground or sharpened truly radial with the hob center, irrespective of whether the gash is straight or helical.
The hob to be sharpened is mounted on a mandrel, carried in the head stock spindle, the outer end of the mandrel being supported by a sliding tail center. Both the spindle and tail center are mounted on a table which travels past the grinding wheel, having a fixed stroke of 7~ in, and being actuated by means of a friction clutch. The operation of this clutch is at the control of the operator at all times, and can be thrown out of engage- ment at the end of any stroke.
The work-arbor spindle is provided with a No. 8 B.&S. taper hole, and runs in hall bearings. The rotate- ing and indexing mechanism is located at the tail end of the spindle, being shown in Fig. 2.
The index plate, which is the notched plate clamped and keyed to the tail end of the work spindle, may be quickly removed and replaced. It is made of hardened steel, the notches being ground. Indexing is positive and automatic. The rotary motion for helical work is imparted by means of an adjustable swiveled guide actuating a rack under the sliding work table so as to turn a gear on the tail end of the work spindle. This guide is carried In a swiveled and graduated plate, which can be set at any desired angle by means of a knurled handwheel and worm. A fine-tooth ratchet can be seen on the tail. end of the work spindle, with a counterpart at the extreme left end of the machine. The overhead bracket connect- ing these two ratchets is really a slide, and is fastened on the right to the arm on the tail end of the work spindle. It keeps the indexing parts on the spindle and the actuating parts at the left end of the machine in proper relation to each other. As the table moves toward the left, the two ratchets engage each other; and the dog, which until now has been engaged in the index plate, is lifted clear of the plate, leaving the latter free to rotate. Immediately after rotation begins, the dog is released and ready to snap into the next notch on the index plate. From that point to the end of the stroke, the left-hand ratchet together with the ,nut in

FIG. 3. SHARPENING A HELICAL-FLUTE HOB
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dATE YOUR mACVHINE lOW CROWN hEX BOLTS FRO AN a

  PAGE 66 
Buying—AMERICAN MACHINIST Section  Vol. 56, No. 1 

PAGE 41
Barber Coleman Automatic Hob-Sharpening Machine
    An automatic machine for sharpening hobs and formed cutters, and intended to reduce the time of sharpening as well as to make possible the performance 'of such work by an ordinary operator, has been devel- oped by the Barber Colman Co., Rockford, Il1., and is shown in Fig. 1. The machine was designed primarily for sharpening hobs up to 4 in. in diameter and 4 in. in length, but it is applicable also to the sharpening of formed cutters.
The hob being sharpened is indexed at the end of each complete to-and-fro stroke, the mechanism provided to index for different numbers of gashes being adjustable and providing a means of easy change. The mechanism used to give the desired helical angle on the hob permits of ready adjustment. The feed provided is adjustable and actuates once for each revolution of the hob, regard-
FIG. 1. BARBER-COLMAN HOB-SHARPENING MACHINE: less of the number of gashes. The faces of the hob teeth are ground or sharpened truly radial with the hob center, irrespective of whether the gash is straight or helical.
The hob to be sharpened is mounted on a mandrel, carried in the head stock spindle, the outer end of the mandrel being supported by a sliding tail center. Both the spindle and tail center are mounted on a table which travels past the grinding wheel, having a fixed stroke of 7~ in, and being actuated by means of a friction clutch. The operation of this clutch is at the control of the operator at all times, and can be thrown out of engage- ment at the end of any stroke.
The work-arbor spindle is provided with a No. 8 B.&S. taper hole, and runs in hall bearings. The rotate- ing and indexing mechanism is located at the tail end of the spindle, being shown in Fig. 2.
The index plate, which is the notched plate clamped and keyed to the tail end of the work spindle, may be quickly removed and replaced. It is made of hardened steel, the notches being ground. Indexing is positive and automatic. The rotary motion for helical work is imparted by means of an adjustable swiveled guide actuating a rack under the sliding work table so as to turn a gear on the tail end of the work spindle. This guide is carried In a swiveled and graduated plate, which can be set at any desired angle by means of a knurled handwheel and worm. A fine-tooth ratchet can be seen on the tail. end of the work spindle, with a counterpart at the extreme left end of the machine. The overhead bracket connect- ing these two ratchets is really a slide, and is fastened on the right to the arm on the tail end of the work spindle. It keeps the indexing parts on the spindle and the actuating parts at the left end of the machine in proper relation to each other. As the table moves toward the left, the two ratchets engage each other; and the dog, which until now has been engaged in the index plate, is lifted clear of the plate, leaving the latter free to rotate. Immediately after rotation begins, the dog is released and ready to snap into the next notch on the index plate. From that point to the end of the stroke, the left-hand ratchet together with the ,nut in

FIG. 3. SHARPENING A HELICAL-FLUTE HOB
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Date Your Machine WITH THESE STYLE BOLTS.

                                                                            LOW CROWN Hex Bolts.

  PAGE 66 
Buying—AMERICAN MACHINIST Section  Vol. 56, No. 1 

Make This acme Bolt Economy Year There is one way to cut costs on your bolt production—cut your bolts on the pre most up-to-date equipment you can find. A nominal investment gives you a source of economical supply for your own bolts—and a steady bolt business among neighboring shops. Acme machines are all equipped with the latest improved micrometer die adjust-ment. They are built in sizes for cutting bolts from 1/4 to I inch in diameter. The Acme Double Bolt Cutter is shown here. Ask for a copy of our 220-page Catalog on Bolt, Nut and Forging Machinery. The Acme Machinery Co. Cleveland, Ohio 
 

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 AMERICAN-MACHINIST-1922 Page 30 January-5-Vol-56-No 1

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                     Date Your Machine No Later than the end of 1920-WWl with these Low Crown Bolts.

                                                                            

  30 AMERICAN MACHINIST which the intermediate gears revolve, the plugs being held against endwise movement by setscrews, while a fourth pair of holes provide bearings for the actual cutter arbor upon which the cutter and the final gear of the train are keyed together. The indexing and feeding mechanisms of the machine were not disturbed or disarranged in any manner, and it is therefore possible by selecting the right cutter and intermediate gears to cut any internal gear within the range of the machine as readily as a corresponding size of external gear would be cut. Extending Lead Screw of Lathe To Use Compound Gearing BY MARTIN H. BALL It sometimes happens that to compound the change gears on a plain lathe—that is a lathe without quick-change gear equipment—would be an advantage to ob-tain a desired feed, or a necessity in order to cut a certain thread. Such a need prompted the design of the lead screw extension shown in the illustration, for use on a 48- and 26-in. McCabe double-spindle lathe. The scheme can be applied to any lathe with plain change gears, making the dimensions to meet the requirements. The parts required are an extension sleeve A and a special nut B. This nut serves the double purpose of binding the extension to the lead screw and of holding the change gear in place, thus holding the three members EXTENSION FOR LEAD SCREW firmly together. A stud with loose bushings, as shown at C, is also required for the intermediate gears. The spacing collar D is made of the same width as the thickness of the wall between the shoulder at the base of the thread on end of lead screw and the shoulder on the extension against which the gear hub seats. Abating the Nuisance of the Loose Pulley BY F. W. COLEMAN I have read with interest the numerous schemes pub-lished in the American Machinist for doing away with the annoyance of loose pulleys that become too loose, and am inspired to submit a method by which I over-came the difficulty. As shown in the sketch, I made a bushing of good clean cast iron that was bored to a running fit on the . shaft and likewise turned to a similar fit in the bore of the pulley, so that it acted as a floating bushing. With suitable oil holes and grooves in the bushings, pulleys fitted in this manner have run for several years without causing trouble. Vol. 56, No. I In some places we had conveyor or transfer chains running under special furnaces for removing clinkers,. and these chains ran over 8-in. flanged wheels. Owing Floating hushing FLOATING BUSHINGS FOR LOOSE PULLEYS to the heat to which the parts were subjected, oil would not remain in the bearings of the pulleys. Fitting the latter with these floating bushings removed a great deal of the trouble. Special Tools for a Drilling and Tapping Machine BY H. E. JEWETT The writer is connected with a company whose prod-uct consists mainly of optical machinery, the parts of which require the drilling and tapping of many small, holes. Up to about a year ago all of this drilling and tap-ping had been done, one hole at a time, mostly upon four-spindle gang drilling machines, but at that time the company installed a twenty-four spindle automatic c*7-1 A o-_O FIG. 2, EXAMPLES OF THE WORK
Buying—AMERICAN MACHINIST Section  Vol. 56, No. 1 

Make This acme Bolt Economy Year There is one way to cut costs on your bolt production—cut your bolts on the pre most up-to-date equipment you can find. A nominal investment gives you a source of economical supply for your own bolts—and a steady bolt business among neighboring shops. Acme machines are all equipped with the latest improved micrometer die adjust-ment. They are built in sizes for cutting bolts from 1/4 to I inch in diameter. The Acme Double Bolt Cutter is shown here. Ask for a copy of our 220-page Catalog on Bolt, Nut and Forging Machinery. The Acme Machinery Co. Cleveland, Ohio 
 

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January 5, 1922 
Cut Production Costs—With (1922--Nothing Under the Sun Has Changed)  Modern Equipment 

No. 242 Niagara Power Squaring Shear. Power Squaring Shears 


We manufacture a complete line of Presses, Punches, Squaring Shears, Ring and Circle Shears, Tinners' Tools and Machines, as well as equipment for special operations on Sheet Metal. The line of Niagara shears ranges from small foot shears for tin to heavy shears for cutting steel up to '4 inch, cutting lengths from 30 to 192 inches. A size and type for every need. Many styles and sizes of shears are shown in our Shear Catalog which will be sent on request. Also, if interested, request Catalogs on Presses, Rotar: Shears, or Tinners' Tools and Machines. 
Niagara Machine & Tool Works 


 

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Established 1879 
Buffalo, N. Y., U. S. A. 

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January 5, 1922 
Cut Production Costs With Modern Equipment 
A cardboard disk was cut to the outside diameter of the cam and, at the crank distance from the center, the connecting rod (also made of cardboard) was pivoted. At the point H a small hole was punched. On the center line was laid off the distance the object was to be moved (in this case 9 in.) and divided into a number of equal spaces. Now a cam arm and roller were made from cardboard and pivoted at the center of shaft E. (It is understood that all this procedure was carried forward on a drawing board, with thumbtacks fur centers.) Now piece of cardboard of a con-venient length was made with a pointed end and fastened to the hub of the arm D. At the point of this card the radius I was scribed. The cam roller was then placed in contact with the line represent-• ing the base of the cam and a mark made at the point J. The same thing was done with the roller on the outside of the cam and a corresponding mark made at K. The space thus marked off on radius I was divided into the same number of spaces as were previously made upon the center line. The cam disk was moved around until the hole H coincided with the first division on the center line. The arm D was moved until the pointer lined up with the first division of the radius I. With a sharp pencil a line was then scribed around the cam roller. This operation was repeated for each division until the crank had made one-half revolution when the procedure was reversed. The cam thus formed is practically correct. The larger the number of divisions, the more accurate it will be. This method can be applied to many different constructions. 
33 
sectors, so he compromised by making them up of straight pieces as indicated at G; the outer surface of the casting being afterwards turned to the required radius in the machine shop, while the inner contour was allowed to remain as he left it. Parts B, C and G were then cut from slab cores 2 in. thick by means of a hack saw blade and finished up 

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                        Antiquemachinery.com
          Machinery Magazine
              January 15 1922
                  pg 69

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Cut Production Costs—With Modern Equipment 
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The Qualities that won Walcott its Supremacy Will Save You Money in this Year 1922 WALCOTT  
Workmanship that puts this lathe in a class few machine tools ever attain. A 
Aron of Double Plate Design, with all gears drop forged---coarse pitch and wide face. Low first cost, low maintenance cost, slow de-preciation, .due to its construction of extreme rigidity (with extra broad saddle bearings)- and 0 operating convenience developed to an unusual degree. (Latest quick change gear-ing, etc.) The wide range of sizes, 14 in., 16 in., 18 in., 20 in., 26 in., and 29 in. Taken all together with 40 years of sane leader-ship in creating better lathe value. 
• 
No successful lathe buyer in 1922 can afford to ignore these MONEY WING qualities. 
WALCOTT Lathes are B u i l t for exceptional service, priced for excep-tional economy. 
Walcott Lathe Company 205 Calhoun St., Jackson, Mich. 
DEALERS IN ALL PRINCIPAL CITIES 
January 5, 1922 
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test 5 58 AMERICAN I C AN MACHINIST Section Vol. 56, No. 1 Original in every respect with numerous new features Designed for High-Speed Drills Write for printed matter telling the whole story Dreses Machine Tool Company, Cincinnati, Ohio Exceptional Service REED-PRENTICE Radials insure this because of the convenient location of all operating levers, the quickness with which speed changes can be made and the positive rigidity secured by the use of the box type column. They are built in 272 ft., 3 ft., 4 ft. and 5 ft. sizes and can be arranged for either variable or constant speed motor drive. LATHES—PLANERS—MILLING MACHINES—MILLING CUTTERS RADIAL DRILLS-VERTICAL SURFACE GRINDERS-PORTABLE SHAPERS RECKER- !LUNG EED-PRENTICE O. HITCOMB-RLAISDEM-\' LI MACHINE COMPANY I MACHINE TOOL CO. 677 CAMBRIDGE STREET, WORCESTER, MASS. Sales Offices: Cleveland, Indianapolis, Detroit, New York. Agents: Dale Ma- Whitcomb-Blaisdell Agents only: Fairbanks Co., Pittsburgh and St. Louis ; chinery Co., Chicago, Ill.; NormoYle & Lapp, 514 Liberty Bldg., Philadelphia, Badger, Packard Machinery Co., Milwaukee, Wis. Becker Agents only: F. .E. Pa. ; M. D. Larkin Supply Co., Dayton, Ohio ; 0. R. Adams, Buffalo and Satterlee Co., Minneapolis, Minn. Cutter Agents: J. L. Stone-Leidy Co., Ma-Rochester, N. Y. ; H. A. Smith Machinery Co., Syracuse, N. Y. ; W. M. Pattison chinery Hall, Chicago; M. D. Larkin Supply Co., Dayton, Ohio; NOrmoyle & Supply Co., Cleveland, 011ie; McCoy-Brandt Machinery Co., Pittsburgh, Pa. Lapp, 514 Liberty Building,

58 
AMERICAN I C AN MACHINIST Section 
Vol. 56, No. 1 

Original in every respect with numerous new features Designed for High-Speed Drills Write for printed matter telling the whole story Dreses Machine Tool Company, Cincinnati, Ohio 


Exceptional Service 
REED-PRENTICE Radials insure this because of the convenient location of all operating levers, the quickness with which speed changes can be made and the positive rigidity secured by the use of the box type column. 
They are built in 272 ft., 3 ft., 4 ft. and 5 ft. sizes and can be arranged for either variable or constant speed motor drive. 
LATHES—PLANERS—MILLING MACHINES—MILLING CUTTERS RADIAL DRILLS-VERTICAL SURFACE GRINDERS-PORTABLE SHAPERS 
RECKER- !LUNG EED-PRENTICE O. HITCOMB-RLAISDEM-\' LI MACHINE COMPANY I MACHINE TOOL CO. 
677 CAMBRIDGE STREET, WORCESTER, MASS. 
Sales Offices: Cleveland, Indianapolis, Detroit, New York. Agents: Dale Ma- Whitcomb-Blaisdell Agents only: Fairbanks Co., Pittsburgh and St. Louis ; chinery Co., Chicago, Ill.; NormoYle & Lapp, 514 Liberty Bldg., Philadelphia, Badger, Packard Machinery Co., Milwaukee, Wis. Becker Agents only: F. .E. Pa. ; M. D. Larkin Supply Co., Dayton, Ohio ; 0. R. Adams, Buffalo and Satterlee Co., Minneapolis, Minn. Cutter Agents: J. L. Stone-Leidy Co., Ma-Rochester, N. Y. ; H. A. Smith Machinery Co., Syracuse, N. Y. ; W. M. Pattison chinery Hall, Chicago; M. D. Larkin Supply Co., Dayton, Ohio; NOrmoyle & Supply Co., Cleveland, 011ie; McCoy-Brandt Machinery Co., Pittsburgh, Pa. Lapp, 514 Liberty Building, Philadelphia, Pa. Sales Offices and Agents have stock of cutters for prompt deliveries 

Philadelphia, Pa. Sales Offices and Agents have stock of cutters for prompt deliveries   

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   AMERICAN I C AN MACHINIST Section Vol. 56, No. 1 Original in every respect with numerous new features Designed for High-Speed Drills Write for printed matter telling the whole story Dreses Machine Tool Company, Cincinnati, Ohio Exceptional Service REED-PRENTICE Radials insure this because of the convenient location of all operating levers, the quickness with which speed changes can be made and the positive rigidity secured by the use of the box type column. They are built in 272 ft., 3 ft., 4 ft. and 5 ft. sizes and can be arranged for either variable or constant speed motor drive. LATHES—PLANERS—MILLING MACHINES—MILLING CUTTERS RADIAL DRILLS-VERTICAL SURFACE GRINDERS-PORTABLE SHAPERS RECKER- !LUNG EED-PRENTICE O. HITCOMB-RLAISDEM-\' LI MACHINE COMPANY I MACHINE TOOL CO. 677 CAMBRIDGE STREET, WORCESTER, MASS. Sales Offices: Cleveland, Indianapolis, Detroit, New York. Agents: Dale Ma- Whitcomb-Blaisdell Agents only: Fairbanks Co., Pittsburgh and St. Louis ; chinery Co., Chicago, Ill.; NormoYle & Lapp, 514 Liberty Bldg., Philadelphia, Badger, Packard Machinery Co., Milwaukee, Wis. Becker Agents only: F. .E. Pa. ; M. D. Larkin Supply Co., Dayton, Ohio ; 0. R. Adams, Buffalo and Satterlee Co., Minneapolis, Minn. Cutter Agents: J. L. Stone-Leidy Co., Ma-Rochester, N. Y. ; H. A. Smith Machinery Co., Syracuse, N. Y. ; W. M. Pattison chinery Hall, Chicago; M. D. Larkin Supply Co., Dayton, Ohio; NOrmoyle & Supply Co., Cleveland, 011ie; McCoy-Brandt Machinery Co., Pittsburgh, Pa. Lapp, 514 Liberty Building,

58 
AMERICAN MACHINIST Section   Vol. 56, No. 1 

Original in every respect with numerous new features Designed for High-Speed Drills Write for printed matter telling the whole story Dreses Machine Tool Company, Cincinnati, Ohio 


Exceptional Service 
REED-PRENTICE Radials insure this because of the convenient location of all operating levers, the quickness with which speed changes can be made and the positive rigidity secured by the use of the box type column. 
They are built in 272 ft., 3 ft., 4 ft. and 5 ft. sizes and can be arranged for either variable or constant speed motor drive. 
LATHES—PLANERS—MILLING MACHINES—MILLING CUTTERS RADIAL DRILLS-VERTICAL SURFACE GRINDERS-PORTABLE SHAPERS 
RECKER- !LUNG EED-PRENTICE O. HITCOMB-RLAISDEM-\' LI MACHINE COMPANY I MACHINE TOOL CO. 
677 CAMBRIDGE STREET, WORCESTER, MASS. 
Sales Offices: Cleveland, Indianapolis, Detroit, New York. Agents: Dale Ma- Whitcomb-Blaisdell Agents only: Fairbanks Co., Pittsburgh and St. Louis ; Machinery Co., Chicago, Ill.; NormoYle & Lapp, 514 Liberty Bldg., Philadelphia, Badger, Packard Machinery Co., Milwaukee, Wis. Becker Agents only: F. .E. Pa. ; M. D. Larkin Supply Co., Dayton, Ohio ; 0. R. Adams, Buffalo and Satterlee Co., Minneapolis, Minn. Cutter Agents: J. L. Stone-Leidy Co., Ma-Rochester, N. Y. ; H. A. Smith Machinery Co., Syracuse, N. Y. ; W. M. Pattison chinery Hall, Chicago; M. D. Larkin Supply Co., Dayton, Ohio; NOrmoyle & Supply Co., Cleveland, 011ie; McCoy-Brandt Machinery Co., Pittsburgh, Pa. Lapp, 514 Liberty Building, Philadelphia, Pa. Sales Offices and Agents have stock of cutters for prompt deliveries 

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SIMPLICITY is often de-ceptive. This is probably the reason why so little authentic data is available concerning the plain bearing. Yet this 

 

 
January 12, 1922 
25 cents a copy 
American Machinist 
KENNETH H. CONDIT and FRED H. COLVIN, Editors L. C. MORROW, Managing Editor Associate Editors—S. ASHTON HAND C. J. PRIEBE ELLSWORTH SHELDON, New England Editor HOWARD CAMPBELL, Western Editor, Chicago MASON BRITTON, Manager 
CO1ATTENTS 
Manufacture and Use of Diamond Cutting Tools 53 BY ELLSWORTH SHELDON. THE MANUFACTURE OF TOOLS with cutting edges of diamond crystals, and some uses to which they are adaoted. American Machinist, Vol. 56. Laying Out a Factory for Production Work 56 BY FRANK W. CURTIS. GIVING DETAILS of the methods used in laying out a plant for production work. American Machinist, Vol. 56. Automotive Service Methods and Equipment 59 BY HOWARD CAMPBELL. THE SIXTH OF A SERIES OF ARTICLES dealing with the tools and methods in some of the larger automotive service plants. American Machinist, Vol. 56. 
Programs of Apprenticeship—XVIII 62 BY J. V. L. MORRIS. A DESCRIPTION of the system employed for instructing ma-chinist apprentices in the shops of a large railroad. This system is of particular interest because the shops of the concern are widely scattered and in localities where there are not many mechanics. American Machinist, Vol. 56 The Grinding Machine in the Railroad Shop 64 BY FRANK A. STANLEY, A DISCUSSION of the advantages to be derived from the use of the grinding machine for finishing locomotive parts. American Machinist, Vol. 56. Tool Engineering 67 By ALBERT A. DOWD AND FRANK W. CURTIS. A DISCUSSION of the principles and practices involved in the design of boring tools for turret lathe use, the article being the thirty-third of a series dealing with jig and tool design. American Machinist, Vol. 56. Making a Casehardened Crankshaft 72 SPECIAL CORRESPONDENCE. A METHOD of securing a very hard bearing surface while preventing the shaft from springing. American Machinist, Vol. 56. 
Searchlight Section 98 Contract Work 108 What and Where to Buy 112 Advertising Index 124 
Machine Tool Industry May Utilize Its Idle Equipment 73 By FRANK A. SCOTT. READJUSTMENT WILL BRING DEMAND for more and better ma-chine tools to lower production costs. American Machinist, Vol. 56. 
Ideas from Practical Men 76 SIMPLE FIXTURE FOR HAND TAPPING, Phelps-Holding a Bor-ing Bar in a Radial Drilling Machine, Hammond-Increasing the Capacity of a Milling Machine Vise, Holbrook-A Safety Screwdriver for Use Around the Screw Machine, Moore-How to Rivet Properly, Bryant-Quick Method of Refinish-ing the Measuring Surfaces of Micrometers, Reimschissel-Center Drill Used for Spotting, Haessler-A Shop Man's Method of Figuring Change Gears, Crommell-Kink That Saves Trouble in Putting on Lathe Chuck. Knabe-Chuck for Refinishing Standard Piercing Punches, Harger-Handy Lo-cating Device for the Milling Machine, Johnson-Lapping a Pitted Journal to Make It True, Clock-Jig for Drilling Crossholes in Round Stock, Haessler, American Machinist, Vol. 56. 
Editorials 80 THE AMERICAN VALUATION PLAN-A National Engineering Research Laboratory? American, Machinist, Vol. 56. 
Shop Equipment News 81 STEWART FURNACES AND FORGES-Watson-Still/ran Forcing Press-Oliver No. 65 Self-Feed Rip Saw-Improvements in the "Photostat"-Hisey "Super" Universal Portable Electric Drill-Atlas "Junior" Dial Indicator. American Machinist, Vol. 56. 
Miscellaneous Articles Siam Can Use Steel Plows Specifications for Brass and Bronze Gears Kinks for the Machine Shop, Mcfrenry American Machinist, Vol. 56. 
Coming Features The Training of Workers in Manufacture—J. V. L. Morris Modern Production Methods—Wm. R. Basset Design of Bevel, Helical and Worm Involute Gears—A. B. Cox Manufacturing Parts of Northway Trucks—Robert Mawson Hydraulic and Hand-Forcing Presses in a Locomotive Shop—J. V. Hunter The articles listed above are to appear in the next issue. 


News Section 84a 
The Business Barom-eter 84c By THEODORE H. PRICI, 
Weekly Price Guide, Shop Materials and Supplies 84n and o 
New and Enlarged Shops 84m and p 
JAMES H. McGRAW President 
ARTHUR J. BALDWIN Vice President 
J. MALCOLM MUIR EDWARD D. CONKLIN Vice President Vice President 
JAMES H. McGRAW, Secretary and Treasurer 
McGRAW-HILL COMPANY, INC.,St.,  Tenth Ave. at 36th St NEW YORK 
Publishers also of Electrical World-Electrical Merchandising-Power-Engineering News-Record--Engineering and Mining Journal-Chemical and Metallurgical Engineering-Electric Railway Journal-Coal Age-Journal of Electricity and Western Industry-Ingeneria Internacional Change of Address-When change of address is ordered the new and the old address must be given. Notice must be received at least ten days before the change takes place. Copyright, 1921, 1VIcGra w-Hitl Company, Inc. Published weekly. Entered as second-class matter June 23, 1879, at the Post Office at New York, under the Act of March 3, 1879. Printed in U. S. A. Member Associated Business Papers, Inc. Circulation of This Issue, 19,847 Member Audit Bureau of Circulations. 
Annual subscription rate, $5 in any part of the United States, Canada, Mexico, Alaska, Hawaii, the Philippines, Porto Rico, Canal Zone, Cuba, Panama.. Dominican Republic, Honduras, Salvador, Nicaragua, Peru, Colombia, Bolivia and Shanghai, China. Extra postage on American Edition in ,other countries except Europe and British pos-sessions in Eastern Hemisphere, $4 (total, $9 or 38 shillings) Single copy 25 cents. McGraw-Hill Publishing Co., Ltd., 6 Bouverie St., London. E. C. 4, England, will serve with the European Edition all subscribers in Europe and British possessions in Eastern Hemisphere (40 shillings for England and 45 shillings elsewhere in Eastern Hemisphere.) 
WASHINGTON, D. C.. Colorado Building CHICAGO. 1570 Old Colony Bldg. PHILADELPHIA, Real Estate Trust Bldg. CLEVELAND. Leader-News Bldg. ST. LOUIS, 713 Star Bldg. SAN FRANCISCO. Rialto Bldg. LONDON. E. C., 6 Bouverie St. 
Cable Address : "Machinist, N. Y." 

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2-20-24

https://antiquemachinery.com/images-2019/American-Machinist-January-5-1922-pg-1-Contents-Libary-seal-Vol-56-No2-600dpi.jpg"
 
January 12, 1922 
25 cents a copy 
American Machinist 
Miscellaneous Articles Siam Can Use Steel Plows Specifications for Brass and Bronze Gears Kinks for the Machine Shop, Mcfrenry American Machinist, Vol. 56. 
Coming Features The Training of Workers in Manufacture—J. V. L. Morris Modern Production Methods—Wm. R. Basset Design of Bevel, Helical and Worm Involute Gears—A. B. Cox Manufacturing Parts of Northway Trucks—Robert Mawson Hydraulic and Hand-Forcing Presses in a Locomotive Shop—J. V. Hunter The articles listed above are to appear in the next issue.  
https://antiquemachinery.com/images-2019/American-Machinist-January-5-1922-pg-1-Contents-Libary-seal-Vol-56-No2-600dpi.jpg"
 
January 12, 1922 
25 cents a copy 
American Machinist 
Miscellaneous Articles Siam Can Use Steel Plows Specifications for Brass and Bronze Gears Kinks for the Machine Shop, Mcfrenry American Machinist, Vol. 56. 
Coming Features The Training of Workers in Manufacture—J. V. L. Morris Modern Production Methods—Wm. R. Basset Design of Bevel, Helical and Worm Involute Gears—A. B. Cox Manufacturing Parts of Northway Trucks—Robert Mawson Hydraulic and Hand-Forcing Presses in a Locomotive Shop—J. V. Hunter The articles listed above are to appear in the next issue.  
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January 12, 1922 
25 cents a copy 
American Machinist 
Miscellaneous Articles Siam Can Use Steel Plows Specifications for Brass and Bronze Gears Kinks for the Machine Shop, Mcfrenry American Machinist, Vol. 56. 
Coming Features The Training of Workers in Manufacture—J. V. L. Morris Modern Production Methods—Wm. R. Basset Design of Bevel, Helical and Worm Involute Gears—A. B. Cox Manufacturing Parts of Northway Trucks—Robert Mawson Hydraulic and Hand-Forcing Presses in a Locomotive Shop—J. V. Hunter The articles listed above are to appear in the next issue.  
 
January 12, 1922 
25 cents a copy 
American Machinist 
Miscellaneous Articles Siam Can Use Steel Plows Specifications for Brass and Bronze Gears Kinks for the Machine Shop, Mcfrenry American Machinist, Vol. 56. 
Coming Features The Training of Workers in Manufacture—J. V. L. Morris Modern Production Methods—Wm. R. Basset Design of Bevel, Helical and Worm Involute Gears—A. B. Cox Manufacturing Parts of Northway Trucks—Robert Mawson Hydraulic and Hand-Forcing Presses in a Locomotive Shop—J. V. Hunter The articles listed above are to appear in the next issue.  
8
 
January 12, 1922 
25 cents a copy 
American Machinist 
Miscellaneous Articles Siam Can Use Steel Plows Specifications for Brass and Bronze Gears Kinks for the Machine Shop, Mcfrenry American Machinist, Vol. 56. 
Coming Features The Training of Workers in Manufacture—J. V. L. Morris Modern Production Methods—Wm. R. Basset Design of Bevel, Helical and Worm Involute Gears—A. B. Cox Manufacturing Parts of Northway Trucks—Robert Mawson Hydraulic and Hand-Forcing Presses in a Locomotive Shop—J. V. Hunter The articles listed above are to appear in the next issue.  
https://antiquemachinery.com/images-2019/American-Machinist-January-5-1922-pg-1-Contents-Libary-seal-Vol-56-No2-600dpi.jpg"
 
January 12, 1922 
25 cents a copy 
American Machinist 
Miscellaneous Articles Siam Can Use Steel Plows Specifications for Brass and Bronze Gears Kinks for the Machine Shop, Mcfrenry American Machinist, Vol. 56. 
Coming Features The Training of Workers in Manufacture—J. V. L. Morris Modern Production Methods—Wm. R. Basset Design of Bevel, Helical and Worm Involute Gears—A. B. Cox Manufacturing Parts of Northway Trucks—Robert Mawson Hydraulic and Hand-Forcing Presses in a Locomotive Shop—J. V. Hunter The articles listed above are to appear in the next issue.