Five Hundred And Seven Mechanical Movements: Embracing All Those Which Are ...
Five Hundred And Seven Mechanical Movements: Embracing All Those Which Are ...
Henry Brown
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A parallel motion commonly used for stationary beam engines. B, sHdes ic a fixed slot, D. The radius bar, F, A, is connected at F with a fixed pivot, and at A, midway between the ends of B, C. uigmzea oy vjOOQE^ Uigiiized by UooglF Mechanical Movements. 85 340. Another parallel motion. Beam, D, C, with joggling pillar-support, B, F, which vi- brates from the center, F. The piston-rod is connected at C. The radius-bar, E, A, produces the parallel motion. 341. "Grasshopper" beam engine. The beam ...is attached at one end to a rock- ing-pillar. A, and the shaft arranged as near to the cylinder as the crank will work. B is the radius-bar of the parallel motion. 342. Old-fashioned single-acting beam pumping engine on the atmospheric prin- ciple, with chain connection between piston- rod and a segment at end of beam. The cylinder is open at top. Very low pressure steam is admitted below piston, and the weight of pump-rod, etc., at the other end of beam, helps to raise piston. Steam is then condensed by injection, and a vacuum thus produced below piston, which is then forced down by atmospheric pressure there- by drawing up pump-rod.
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