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

[2434]. Eyelet centre for two or more levers.

[2435]. Centre pin, with lug and screw, to prevent it from working out.

[2436], [2437] & [2438]. Methods of fitting up connecting rod centres in trunk pistons or rams.

(See also [p. 168].)

[2439]. Ball head bolt and nut to allow it to draw up out of line.

[2440]. Universal bolt head.

[2441]. Ball joint bolt and nut.

[2442]. Flush head coned bolt.