Pg. 346 PRENTISS TOOL & SUPPLY COMPANY.

AKA: AUTOMATIC MACHINE TOOL CO.  GREENFIELD MASS.

AKA:F.E. WELLS &SON CO. GREENFIELD MASS.---Is cast into the machine like this I an restoring (non swivel head) I need a headstock for it, and mine is slightly more strong at the x croslide than shown on the non swivel head.

GRINDERS

CUTTER AND REAMERS

 

GRINDERS

 

CUTTER AND REAMERS

 

We desire to call special attention to this simple machine for grinding milling cutters, taps, taper reamers, lathe tools, etc., etc. Cutters to 6 Inches in diameter, both spiral and straight, reamers 14 inches and less in length can be ground in this machine. It is made from new and improved patterns. All slides are covered to protect them from dust and emery. The bearings are covered with dust caps and are adjustable for wear, and the ways are gibed, so that the machine can always be kept in good working order. The swivel slide is graduated on one end and provided with a clamping device for securing it in any desired position. It is operated by a lever, which can be removed instantly when desirable. The flat rest can be fastened in position or removed by simply tightening or loosening the clamping nut.

 

An attachment is furnished for grinding all kinds of end mills, bevel milk, side cutting mills, angular cutters, etc., and with a special attachment (which is extra) all kinds of involute gear cutters and small cutters of special form which require grinding on the face of the tooth. This attachment is graduated on its surface and is reamed for 34-inch arbor.

 

We furnish this machine with a double countershaft and special attachment for grinding circular work, at an extra price. This attachment will take an arbor 4 inches long between the centers, and will grind work 8 inches in length and 5 inches in diameter. This is a good deal more of a machine than the price would indicate. It is capable of a great variety of work.

Light and loose pulleys on countershaft 2 inc lid face, 4 inches diameter; loose pulley supplied with oil reservoir. Speed of countershaft, 500 revolutions a minute.

This grinder is mounted so it will swing at any horizontal angle to the spindle of the wheel, and present work at any angle to either side heel. This enables cup wheels to be used as easily as wheels of ordinary form, and is~ of great importance.

The table can be elevated or depressed, and it has many other points of excellence.

11 machines is furnished in two styles, viz.

Style A. Grinder with base and countershaft.

Style B. Grinder with base, circular attachment, and double countershaft.

Extras can be ~supplied as follows

Attachments for grinding form cutters, three indexes.

Extra indexes.

Attachment for internal grinding.

Attachment for grinding die chasers, including internal grinding attachment.

 

 

 

 

     PRENTISS TOOL & SUPPLY COMPANY.

AKA: AUTOMATIC MACHINE TOOL CO.  GREENFIELD MASS.

AKA:F.E. WELLS &SON CO. GREENFIELD MASS.---Is cast into the machine like this I an restoring (non swivel head) I need a headstock for it, and mine is slightly more strong at the x croslide than shown on the non swivel head.

GRINDERS

PAGE AS SCANNED TO OCR:

CUTTER AND REANIERS

 

We desire to call special attention to this siml) für grill(lillg milling taps, taper reamers, lathe tools, etc., etc. Cutters to 6 inches in diameter, both spiral and straight, rearners 14 inches and less in length can be ground in this machine. It is made from new and improved patterns. All slides are covered to protect them from dust and emery. The bearings are covered with dust caps an(l are adjustable for wear, and the ways arc gibbed, so that the machine can ~dwavs be kept in good working order. The swivel slide is graduated on one end and provided with a clamping device for securing it in any desired position. It is operated by a lever which can be removed iiistantly when desirable. The flat rest can be fastened in position or relnoVe(l by simply tightening or loosening the clamping nut.

 

An attachment for grinding all kinds of cud mills, bevel mills, side cutting mills, angular cutters, etc., and with a special attachment (which is extra) all kin(ls of involute gear cutters and small cutters of special form which require grinding on the face of the tooth. This attachment is graduated on its surface and is reamed for 34-inch arbor.

 

We furnish this machine with a double countershaft antl special attachment for grinding circular work, at an extra price. This attachment will take an arbor 14 inches long between the centers, and will grind work 8 inches in length and 5 inches in diameter. This is a good tleal more of a machine than the price would indicate. It is capable of a great variety of ork.

Tight and loose pulleys oil eonntersliaft 2—inch face, 4 inches diameter; loose pulley supplied with oil reservoir. Speed of countershaft, 500 rcvoltttions per minute.

This grinder is mountetl so it will swing at any horizontal angle to the spindle of the wheel, and present work at any angle to either wheel. This enables cup wheels to be used as easily as wheels of ordinary form, and is of great importance.

The table can be elevmttecl or depressed, and it has many other points of excellence.

Machine is furnished ll two styles, viz.

 

Style A. Grinder with base and conntershaft.

Style B. Gt-incler with base, circular attachment, and (letible cotmtershaft.

Extras can be snp~mlied as follows

Attachments for grinding form cutters, three indexes.

Extra iui(lexes.

Attachment für internal grin ding’.

Attachment for grinding die chasers, including internal grinding attachment.