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

c.

Differential blocks of various patterns (see Weston’s, Pickering’s, Moore’s, &c.). See [Section 31].

d.

By screw gear, as in the ordinary screw jack. [Sec. 78].

e.

Rack and pinion gear. See [No. 754].

f.

Worm and wheel gear. See [Section 84].

c. Differential blocks of various patterns (see Weston’s, Pickering’s, Moore’s, &c.). See [Section 31].

d. By screw gear, as in the ordinary screw jack. [Sec. 78].