Chapter CXXVII: Section 48: Levers

(_See also p. 108._)

=2256. Lever, with universal motion.=

=2257. Hand starting lever=, cheap construction, formed of light channel-iron, with a bent lock bar engaging with holes in a sector plate cast on the bearing.

=Locking levers.= See Section 49.

=2258. Double lever,= hand motion, for fire-engine, pumps, &c.

=2259. Locking lever= formed of iron tube with sliding catch rod inside.

=2260. Starting lever,= with hooked catch, taking into holes in a sector plate.

=2261. Convex worm= for locking and adjusting a starting lever.

=2262. Equalising levers= for springs and variable movements.

=2263. Lever and rack= lifting appliance.

=2264. Spring lever= to lock in two positions.

=2265. Hand lever= adjustable to radius. With a bent handle it forms an adjustable hand crank.

=Spring lever= formed of steel plates. See No. 1914.

=Compound levers.= See No. 1367. “Roller board” movements in organs
are of this type, but each pair of arms and its shaft or roller is
mounted independently on a pair of end centres.

=2265A. Double lever= for a plug cock, to be operated by two cords.