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

[1015]. All the radius bars to be of same length as the half beam.

[1016]. Two equal radius bars connected by a link, the main gudgeon in its centre.

[1017]. Beam of the 2nd order with rocking fulcrum, A and A being equal.

[1018]. Sector and rack motion.

See also [No. 714].

---

Section 56.—PUMPING AND RAISING WATER.

Some of the most primitive methods are still in use, and may possibly still be found of service in particular cases.

[1019]. Scoop wheel.

[1020]. Dipping trough.