Section 71.—ROPE, BELT AND CHAIN PULLEYS.

(See also [p. 152].)

[2415]. Rope grip pulley. Dearden’s patent.

[Larger plate.]

Section 73.—RAIL AND TRAM ROADS.

(See also [p. 156].)

[2416]. Centre rail, with friction grip for moderate inclines.

Rack railways for steep inclines of an angle, in some cases of 40°, are made with central rack rails (in addition to the ordinary rails), and the engines have steel gearing, which gears into the teeth cut in the rack rail.