Machine Tools and Workshop Practice for Engineering Students and ApprenticesLongmans, Green, and Company, 1905 - 444 страници |
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Страница 1
... head of each stud a very fine line is engraved , and the distance between these fine lines when the bar is at the temperature of 62 ° Fahr . A STANDARD OF LENGTH 36 INCHES FIG . I. is one " Standard " or " British yard , and was adopted ...
... head of each stud a very fine line is engraved , and the distance between these fine lines when the bar is at the temperature of 62 ° Fahr . A STANDARD OF LENGTH 36 INCHES FIG . I. is one " Standard " or " British yard , and was adopted ...
Страница 37
... head poppet until the centre almost touches the nut to be bored . Then by slowly rotating the lathe face plate , it will at once be seen how far the " nut is out of truth . " However much or little this may be , the nut is not disturbed ...
... head poppet until the centre almost touches the nut to be bored . Then by slowly rotating the lathe face plate , it will at once be seen how far the " nut is out of truth . " However much or little this may be , the nut is not disturbed ...
Страница 38
... heads ( mushroom heads are too weak ) . Square and tee headed bolts are made having square necks , which prevent their turning ; while nexagon - headed bolts may be used with advantage on tables or face plates with round holes . A ...
... heads ( mushroom heads are too weak ) . Square and tee headed bolts are made having square necks , which prevent their turning ; while nexagon - headed bolts may be used with advantage on tables or face plates with round holes . A ...
Страница 39
... bolts of a small diameter . ( See Fig . 48 , taken from photograph of ancient bolts and nuts . Note size of threads and form of bolt - heads . ) Clips and their Uses . - Clips are used to MARKING " OR 66 LINING - OUT " TABLE AND TOOLS . 39.
... bolts of a small diameter . ( See Fig . 48 , taken from photograph of ancient bolts and nuts . Note size of threads and form of bolt - heads . ) Clips and their Uses . - Clips are used to MARKING " OR 66 LINING - OUT " TABLE AND TOOLS . 39.
Страница 40
... heads , and therefore cannot turn . 3. Bolts may be inserted into nuts previously placed to receive them , in which case " headless bolts or studs can be used to advantage . In Fig . 49 a " chucking clip " is 99 shown . This is used ...
... heads , and therefore cannot turn . 3. Bolts may be inserted into nuts previously placed to receive them , in which case " headless bolts or studs can be used to advantage . In Fig . 49 a " chucking clip " is 99 shown . This is used ...
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addendum circle adjustable angle plate B.Sc bearings bevel bolts boring calipers carried cast iron centre change wheels chisel chuck cone crank Crown 8vo cutting edges cutting tools cylinder Diagrams diameter diametral pitch disc drill driving ELEMENTARY emery wheel engine feed finished fitted fixed forged gauge gear grinding grinding machine grip groove ground guide screw hammer hardened headstock heat holes hydraulic Illustrations jaws lathe length lever machine tools mandrel measured metal mild steel Millimetres milling cutter milling machine motion number of teeth obtained operated parallel piece pinion piston pitch circle placed planing machine position practice pressure pulley reamer rest revolutions per minute revolving rivet rotated saddle screw threads secured shaft shown in Fig side slide slot speed spindle square standard surface taper threads per inch tooth turned turret vertical worm wrought iron
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