[2115]. Split end grip for a rod.
[2116]. Double vee grip for pipes, &c., which, having an equal movement to both jaws, remains always central. The large screw must be twice the pitch of the smaller central screw, and one is right hand, the other left hand.
[2117]. Hand screws, with V grip.
Section 29.—CUSHIONING.
(See also [p. 72].)
[2118]. Rubber pad or buffer.
[2119]. Cushion tyre for road wheels.
[2120]. Cushion tyre, pneumatic. The resistance in this tyre is increased by compression of the enclosed air by a portable pump.
Duplex pumps are cushioned at each end of the stroke by trapping part of the exhaust steam by the piston closing the port.