Machine Tools and Workshop Practice for Engineering Students and ApprenticesLongmans, Green, and Company, 1905 - 444 страници |
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Страница ix
... and Messrs . The Unbreakable Pulley Co. , Manchester , for some particulars on the transmission of power . ALFRED PARR . UNIVERSITY COLLEGE , NOTTINGHAM , December 12 , 1904 . b CONTENTS CHAPTER I. MEASUREMENT . - ― Standards of length.
... and Messrs . The Unbreakable Pulley Co. , Manchester , for some particulars on the transmission of power . ALFRED PARR . UNIVERSITY COLLEGE , NOTTINGHAM , December 12 , 1904 . b CONTENTS CHAPTER I. MEASUREMENT . - ― Standards of length.
Страница xi
Alfred Parr. CONTENTS CHAPTER I. MEASUREMENT . - ― Standards of length - Subdivision of standards - Degrees of accuracy - Measur- ing and gauging instruments - Accuracy of form and finish- " Whitworth's " Protractors measuring machine ...
Alfred Parr. CONTENTS CHAPTER I. MEASUREMENT . - ― Standards of length - Subdivision of standards - Degrees of accuracy - Measur- ing and gauging instruments - Accuracy of form and finish- " Whitworth's " Protractors measuring machine ...
Страница 1
... length have been taken is the " imperial " or standard yard . " In the strong room of the Standards Department of the Board of Trade , London , a bronze bar is kept . It is composed of copper 16 , tin 21 , and zinc 1 ounce avoir- dupois ...
... length have been taken is the " imperial " or standard yard . " In the strong room of the Standards Department of the Board of Trade , London , a bronze bar is kept . It is composed of copper 16 , tin 21 , and zinc 1 ounce avoir- dupois ...
Страница 2
... length , and in special cases much longer . Uses of Steel and other Rules . We may transfer a measurement from a ... length at first was 5 in . , and each told to reduce the length by filing away one - eighth of an inch , using only a ...
... length , and in special cases much longer . Uses of Steel and other Rules . We may transfer a measurement from a ... length at first was 5 in . , and each told to reduce the length by filing away one - eighth of an inch , using only a ...
Страница 3
... length . From such examples it will be seen that there is a distinct difference between the use of a rule and that of a gauge . The former tells us dimensions by the sense of sight , the latter by the sense of touch . Measurement ...
... length . From such examples it will be seen that there is a distinct difference between the use of a rule and that of a gauge . The former tells us dimensions by the sense of sight , the latter by the sense of touch . Measurement ...
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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 mandrel measured metal mild steel Millimetres milling cutter milling machine motion number of teeth obtained operated parallel piece pinion pipe 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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