In 1855 two 0-8-0 locomotives for use in the Crimean War, capable of hauling guns up inclines as steep as 1 in 10, were reputed to have been built with horizontal cylindrical furnaces, rather than rectangular fireboxes, and boilers fed by force pumps.
22.
Water was conveyed from the well to the tower in a cast iron pipe thirteen inches in diameter when it was then forced into the tank by two force pumps, each of ten inches in diameter, worked by a duplicate, horizontal engine of twenty-five horse power.
23.
For example, the oiler was of the precision variety, in which a ratchet actuated worm drive a worm gear carrying a spring actuated oil force pump successively over the oil leads to be supplied, the plunge spring being compressed by a circle of wedges, and the rise from each compression being regulated by an individual temper screw.
