. American engineer and railroad journal . AUTOMATIC CYLINDER COCK. A sectional view of the Dolph automatic cylinder cock is shownin the accompanying illustration. When steam is being used thepressure on the upper surface of the winged valve F forces itdown on its seat. When steam is shut off the spiral spring K plied from the main reservoir through an operating valve in thecab. In addition to the advantages gained due to the automatic ac-tion, the awkward and ofttimes unsatisfactory cylinder cock rig-ging is done away with; there is considerably more clearancebetween the road bed and the bott
. American engineer and railroad journal . AUTOMATIC CYLINDER COCK. A sectional view of the Dolph automatic cylinder cock is shownin the accompanying illustration. When steam is being used thepressure on the upper surface of the winged valve F forces itdown on its seat. When steam is shut off the spiral spring K plied from the main reservoir through an operating valve in thecab. In addition to the advantages gained due to the automatic ac-tion, the awkward and ofttimes unsatisfactory cylinder cock rig-ging is done away with; there is considerably more clearancebetween the road bed and the bottom of the cock, thus reducingthe liability of its being torn away. These valves are being usedon several railroads with satisfactory results and are made bythe Dolph Valve Company with offices at Buffalo, N. Y., andErie. Pa. 448 AMERICAN ENGINEER AND RAILROAD TOURNAL. NEW BICKFORD UNIVERSAL RADIAL DRILL. NEW UNIVERSAL RADIAL DRILL. The Bickford Drill & Tool Company, Cincinnati, O., is plac-ing a new line of universal radial drills on the market, similarto the one shown in the illustration. It is claimed that the de-sign of the arm offers much greater resistance to the combinedstresses of twisting and bending than in their former that this, combined with the exceptional facilities which theopen form of arm offers for the introduction of a driving mech-anism commensurate with the strength, power and durabilityobtainable in the other parts, marks an important advance inuniversal radial drill construction—obtaining a degree of effi-ciency equal to that of a plain machine. The sleeve is mounted on a stationary stump which extends upto and has a bearing at the top of the machine. This is equiva-lent to a double column, and affords that stiffness which is soessential to true work. The arm may be rotated through a com-plete circle on its
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
