The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purpose

by Thomas Walter Barber

[885]. Another pattern of ditto.

[886]. Similar lever, with side or crank handles.

[887]. Foot lever.

[888]. Foot treadle frame.

[889]. Wrist plate or T lever.

[890]. Hand lever, adjustable as to length by means of a slot and locking bolt. For this purpose a plain round rod passed through a central socket and fixed at any radial length by a set screw, is often used; or the hand rod may be cranked as [No. 1784].

[891]. Double hand lever.

[892]. Lever, formed of two wrought iron or steel plates and distance pieces.

[893] & [894]. Rocking levers, with sliding swivel joints.

[895]. Forked lever, to span a central bearing.