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The Iron Age 1888-03-22: Vol 41

1888 Reed Business Information US

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tHE The Improved Yoch Mining Machine. We present this week engravings of the improved Yoch mining machine, built by the Yoch Mining Machine Company, of Belleville, Tl. The machine consists essentially of a) vast-iron cylinder, N, 24 inches long by 6 inches bore, with a piston travel of 16 inches. The details of construction are COAL-MINING MACHINE, very clearly shown in the sectional view, Fig. 2, in which it will be noticed that the front end of the cylinder has a cushion pocket measuring 54 x 6 inches, and the back end, one of 44 x 6 inches, two steel check valves being provided to regulate the imprisoned air. In this way the piston head is effectually prevented from striking ‘ither front or back cylinder heads. The piston-rod is of steel, 65 inches long. Of this length a section of 30 inches is turned to a diameter of 2} inches. The piston 1ead measures 6 inches, and has two pack- | ing rings. | BUILT IRON THURSDAY, MARCH sleeve, and this section is planed to a thickness of 24 inches and width of 4 inches. The rod is guided through the sleeve by two anti-friction steel rollers turning on steel pins and adjusted as| shown in our engraving. The upper front end of the sleeve has a …

Citation

The Iron Age 1888-03-22: Vol 41. Reed Business Information US. 1888.