. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. Fig. 1. train, a portion of which is marked with the letter /. Fig. 2 represents a transverse seciion of the apparatus taken through the line A B of fig. 1, in which is shown the mode of closing the longitudinal opening hy means of a Talve g sliding edgeways into a groove or recess formed in the upper part of the tube. The operation is as follows:—At certain intervals along the line. are to be erected steam boilers; and in order to propel the carriages, steam is to be admitte
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. Fig. 1. train, a portion of which is marked with the letter /. Fig. 2 represents a transverse seciion of the apparatus taken through the line A B of fig. 1, in which is shown the mode of closing the longitudinal opening hy means of a Talve g sliding edgeways into a groove or recess formed in the upper part of the tube. The operation is as follows:—At certain intervals along the line. are to be erected steam boilers; and in order to propel the carriages, steam is to be admitted into the tube a a throughout the whole length, for the pur- pose of warming the tube and driving out the air. The ends of the tube and longitudinal opening being closed, a communication is to be formed with the tube and a condenser, similar to those employed in steam engines, for the purpose of condensing the steam, leaving the pipe empty or nearly so ; when this is done the piston d d\% brought near to the opening leading from the boiler, when a fresh supply of steam is admitted, which will have the effect of propelling the piston and train of carriages along the line. The specification states that the condenser may be dispensed with by open- ing the cock rf, so as to let the steam first introduced into the pipe pass up the funnel h for the purpose of driving out the air. i i is an arrangement of levers for opening the valve d. In place of having stationary boilers, the inventor proposes to have an ordinary locomotive boiler, and instead of the steam working the engines as heretofore, such steam is allowed to pass through the pipe e e into the main, either from behind or in front, depend- ing upon the direction in which the carriage or train is to be propelled. In descending inclines, the inventor proposes to fill the tube with steam, which will have the effect of a break, the motion of the carriage being regulated by opening the valve d so as to allow the steam to escape
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