. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. 1844.] THE CIVIL ENGINEER AND ARCHITECT'S JOURNAL. 37 IMPROVEMENTS IN STEAM ENGINES. Jacob Samuda, of Southwark Bridge Iron works, Surrey, Engineer, for "Improvements in the construction of steam engines, particularly applicable to ttie purposes of steam navigalion.—Giaatei July 10,1843 ; Enrolled January 10,1844. The first improvement consists in a novel construction of the steam engine, whereby the cylinders are placed almost over the keel of the boat; the steam cylind
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. 1844.] THE CIVIL ENGINEER AND ARCHITECT'S JOURNAL. 37 IMPROVEMENTS IN STEAM ENGINES. Jacob Samuda, of Southwark Bridge Iron works, Surrey, Engineer, for "Improvements in the construction of steam engines, particularly applicable to ttie purposes of steam navigalion.—Giaatei July 10,1843 ; Enrolled January 10,1844. The first improvement consists in a novel construction of the steam engine, whereby the cylinders are placed almost over the keel of the boat; the steam cylinder, piston rod, cross head, and side rods, are of the ordinary construc- tion, but in place of the side lever beams, Mr. Samuda employs a lever of a triangular form moving upon centres, which gives motion to the connecting rod; the cylinders of this engine are not exactly in a line with each other but a little sideways, and in an opposite direction to each other, so that the connecting rods may work close to each other, but if it is desirable to have the cylinders in the same line, it can be effected by cranking one of the con- necting rods, so as to receive the other: the following sketch, which is an elevation of the engine with one side removed, will serve to illustrate more clearly the novel construction of the same ; a a,h the framework of the en- gine, h, b two iron triangles working on centres c, c, fixed to the framework ; d, d the connecting rods, the lower ends of which are connected to the ends of the triangle by pin joints, and the upper ends to the single crank pin ; e, e, the cylinders,/,/, the side rods connected at one end to the cross head of the piston, and at the other end to the triangle by a pin joint as shown by the The second part of these improvements consists in a modification of the above, but in place of one cylinder being employed at each end of the frame, there are two cylinders placed abreast of one another; in this case there are four
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