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

[1959]. Wide belt pulleys, cast with a double set of arms (shown in section).

[1960]. Belt drive for two pulleys.

Vee belts are used to run over V grooved pulleys. See [No. 1243].

Link belts; formed of leather links connected by steel wire centres in the form of a wide pitched chain (as [No. 196]).

Cord belts are formed of guttapercha, indiarubber, leather, raw hide or catgut.

Raw hide is frequently used for belts; it is stronger than leather, harder in substance and less porous.

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Section 4.—BALL AND SOCKET JOINTS.

(See also [p. 12].)

[1961]. Swinging fixing, with ball and cup joint.