Author Description

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1901 Excerpt:... of steam direct from the boiler. The boiler to be of the locomotive type, having 5 square feet of grate, to be set in a hot chamber with an economizer and alternative chimney and forced draught, on the closed stoke-hold system. The condenser to have 200 square feet of cooling surface. The dimensions of the engines to be somewhat as follow: In addition to the brake, each engine was to be furnished with a fly The advantage of having the engines on separate brakes was suggested to the Author by Mr J. I. Thornycroft, M. Inst. C.E. wheel, to act as a belt or rope-pulley, weighing about 1,200 lbs., carried on a separate shaft with a coupling to the crank-shaft. The firm of Messrs Mather and Piatt, Salford Iron Works, undertook the preparation of the designs and the construction of special engines and boiler to meet in all respects the wishes of the Committee, and spared neither trouble nor expense in carrying out the work. It was entirely owing to the zeal and liberality of this firm that the College was enabled to meet the expense of an undertaking involving so much special work. The design of the engines, shown in Figs. 1 and 2, contains many novelties. These were not adopted without what appeared to the Committee to be sufficient reason, as it was unanimously desired to adhere as far as possible to ordinary types. As regards the cylinders, pistons, and valves, there are three noticeable departures; these were adopted with a view--1. To ensure the completeness and efficiency of the steam-jackets. 2. To diminish the resistance to the passage of steam as much as possible. 3. To keep down the clearance. 4. To obtain an adjustable cut-off from zero at any speed. 1. To obtain completeness in jacketing, both ends (or covers) were jacketed as well as the walls. To en...