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Mechanical applicances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical mvements, powers and devices"; (1917)

Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing company · leaf 256

An illustration from Mechanical applicances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical mvements, powers and devices";, 1917, leaf 256
656. FRICTION CLUTCH, ferowntype. The usual sliding sleeve on theshaft and connection to an arm on aright and left double-thread screw, whichexpands the friction blocks and so clutchesthe inner face of the pulley rim. … 657. EXPANDING WRENCH OR CHUCK. One of the triangular jaws is recessed to forman abutment for the adjusting screws c, d, andtwo other jaws are slotted to pass over the screws.The square can be varied in size to fit varioussizes of tap shanks or drill shanks when the de-vice is used as a chuck.

Mechanical movements

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