Transactions of the American Society of Civil Engineers Volume 54, pt. 4 - Tapa blanda

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. 1905 Excerpt: ... introduced a form of de Glehn compound with the same connections, except that the cranks on the rear and front drivers were 162 apart instead of 180, to facilitate starting. This engine was tried without side rods, but did not give satisfaction unless coupled. In the same year, Wright got out an American patent for an engine to have two high-pressure cylinders outside connected, and two lowpressure cylinders situated under the smokebox and connected to the cross-heads of the high-pressure pair by a system of levers. Vauclain, 1892.--In this year, the Baldwin Locomotive Works brought out an improved two-cylinder automatic compound from the designs of S. M. Vauclain. Meyer-Lindner, 1892.--In 1892 an articulated, duplex compound was designed by Meyer and Lindner. It comprised two four-wheel trucks, the rear set of which was driven by two outside-connected, high-pressure cylinders, and the front set by the same arrangement of low-pressure cylinders. Both the high and low-pressure cylinders were situated in the center of the engine. J. B. Smith, 1892.--In the same year, J. B. Smith designed an engine which was built by the Dunmore Iron and Steel Company for the Erie and Wyoming Valley Railroad, which had three highpressure cylinders set 120 apart on the front axle. Two were placed outside and one inside, close to one driving box, thus leaving all the eccentrics on one side of the crank. Strong, 1896.--The next step in the United States was taken by Strong, who altered one of his original engines to the balanced compound type. The special feature of this engine lay in the effort of the designer to get the same weight of reciprocating parts in the high and low-pressure cylinders by making the pistons and rods of the latter hollow. The revolving parts were counter...