A few good cylindrical grinding services photos I discovered:
Image from page 436 of “Farrow’s military encyclopedia : a dictionary of military understanding” (1885)
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Identifier: farrowsmilitarye02farr
Title: Farrow’s military encyclopedia : a dictionary of military information
Year: 1885 (1880s)
Authors: Farrow, Edward S. (Edward Samuel), b. 1855
Subjects: Military art and science
Publisher: New York : [s.n.]
Contributing Library: University of California Libraries
Digitizing Sponsor: Web Archive
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diainelcr.It is arrangecl for dr:iught liy attaching a jiair ofshafts to the trail. The pack-saddle and its harnessare constructed to carry severally. tli( howitzer andshaft, the carriage, or two anniumition chests, or itenables an animal to draw the carriage, with thehowitzer mounted upon it. A iiortable forge ac-organizations every mountiin battery,and is so construct-ed that it can be enclosed in two chests, and carried,with a bag of coil, u])on the jiack-saddle. The Russian carriage has really short cheeks, thefront ends of which are reduce off obliquely alternatively ofvertically the trunnion-beds are let into this ob-lique face, and the trunnions are heldliy cap-squaresand keys. Krupp tends to make two sizes of carriages forthe eight-ccntimeter and (i-centimeter guns, respectively.The elevating-screw admits of IH of elevation and10 depression. The anmumilion-chests arc madeof wood, with iron angle-pieces. The English have two carriage.?, as shown in thedrawing, for the two 7-pounder guns, a single of which
Text Appearing Right after Image:
riage-roads, and inaccessible to field artillery. Itmust, for that reason, be light adequate to be carried onpack-animals. The piece utilised for nu)untain servicein the United States is a short, light 12-pdr. how-itzer, weighing 320 lbs. The form of the chamberis cylindrical, and suited to a charge of lb. of pow-der. The projectiles are shells and case-sliot. It isdischarged from a low, two-wheel carriage, whichserves for transportation whenever the ground willpermit. When the piece is packed, the carriage ispacked on a separate animal The mountain howit-zer is also employed for prairie service, and in de-fending camps and frontier forts against Inilians, inwhich^asc it is mounted on a light, four-wheel auto-riage, named ■ the prairie carriage. In the Mexi-can war, the mountain howitzer was located beneficial. weighs 150 pounds when created of steel, and 200pounds if made of brass the other weighs 200 pound.swhen produced of steel, and 224 if produced of bronze. Thewheels are 30 inches and 3lj inches in di
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Image from web page 173 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
Contributing Library: Fisher – University of Toronto
Digitizing Sponsor: Algoma University, Trent University, Lakehead University, Laurentian University, Nipissing University, Ryerson University and University of Toronto Libraries
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CANADIAN MACHINERY Small TOOLS »z < k PROMPT SERVICE is assured at our neareststore where P. & W. SmallTools are carried in stock forimmediate delivery. Placeyour order there to-day. P. & W. TAPS Insure the Greatest Accuracy CUTTING y!*.-*- _i EDGE
Text Appearing Following Image:
The Tapswith thei Con-eccentric Trade-Mark Registered Land As will be noticed bv the cross-section reduce V above, 1-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 right 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 best 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 achievable to receive in a industrial tool, butalso insures the freest cutting tap with the longest life—an exclusive P. & W. Mixture. Precision Machine Tools, Requirements 6& Gauges PRATT&WHITNEYCO: of ^ Canada, Restricted MONTREAL723 Drummond Bldg. Works: DUNDAS, ONTARIO TORONTO WINNIPEG 1002 C
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