A few nice precision cylindrical grinding images I found:
Image from page 135 of “Canadian machinery and metalworking (July-December 1917)” (1917)
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Identifier: canmachinerjuldec1917toro
Title: Canadian machinery and metalworking (July-December 1917)
Year: 1917 (1910s)
Authors:
Subjects: Machinery Machinery Machinery
Publisher: Toronto MacLean-Hunter
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// any advertisement interests you, tear it out now and place with tetters to be answered. 134 C A N A D I A N M A C H I N E R Y Volume XVIU
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Model B Where precision and mathemati-cal exactness are required, this -ixby twenty Grinder will handle thework to your entire satisfaction. The large pilot wheel operatingthe traverse table is designed togive convenience, speed and fullcontrol of the machine. ModelB is a compact machine occupy-ing only 52 x 66 floor space, yetit is a veritable giant in its capa-city for work. Viewed as a unitthis Model B is decidedly agrinder of real worth, requiring7 h.p. to operate, 640 R.P.M. ontight or loose pulleys, with a 16 x2,-3 or 4 face grinding wheel.Three wheel speeds, 1300, 1500,1800. We will appreciate an inquiryfrom you. Our catalogue is atyour disposal. Model A Compactness, speed and range ofwork comprise the features thatpoint this machine out as one ofexceptional merit. Occupying 52x 66 space it will prove great saverin your floor outlay. A greatmany of the parts of these twomachines are interchangeable. For grinding straight or taper-work of cylindrical form within itsrange. Dead o
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Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability – coloration and appearance of these illustrations may not perfectly resemble the original work.
Image from page 174 of “Canadian machinery and metalworking (July-December 1917)” (1917)
Image by Internet Archive Book Images
Identifier: canmachinerjuldec1917toro
Title: Canadian machinery and metalworking (July-December 1917)
Year: 1917 (1910s)
Authors:
Subjects: Machinery Machinery Machinery
Publisher: Toronto MacLean-Hunter
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About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.
Text Appearing Before Image:
on cut V above, one-third of the land from the cuttingedge has concentric relief. The remainingtwo-thirds is eccentrically relieved. A tapmade in this way can be ground for sharpen-ing at the only correct point—on the face ofthe cutting edge. Sharpening in no wayaffects its size or the form of the thread. The Taper Tap has a cylindrical pilot and on the cham-fered portion of the tap the top of the thread is relievedclear to the cutting edge to secure keen cutting qualities. The construction of Pratt & Whitney Taps not onlyinsures greater accuracy and refinement than has here-tofore been possible to obtain in a commercial tool, butalso insures the freest cutting tap with the longest life—an exclusive P. & W. Combination. Precision China Machine Tools, Standards 6& Gauges PRATT&WHITNEYCO: of ^ Canada, Limited MONTREAL723 Drummond Bldg. Works: DUNDAS, ONTARIO TORONTO WINNIPEG 1002 C.P.R. Bldg. 1205 McArthur Bldg. VANCOUVERB.C. Equipment Co. July 12, 1917. CANADIAN MACHINERY
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Built-in-Merit
Note About Images
Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability – coloration and appearance of these illustrations may not perfectly resemble the original work.