. American engineer . ve side rods is a causeof much annoyance and expense. The loss of a plug on the roadis quite likely to permit a crankpin to heat badly before the plugcan be replaced and quite fre-quently no spare plugs are atonce vailable. The grease plugwhich is shown in the illustrationis the invention of L. P. Welfley,Hinton, W. Va., and has beenpatented by him. The body ofthe plug is cored out and a boltis passed through, as shown, witha taper head bearing against thesides of the plug, which aretapered to conform to the bolthead. In order to lock the plugin any position, it is only n
. American engineer . ve side rods is a causeof much annoyance and expense. The loss of a plug on the roadis quite likely to permit a crankpin to heat badly before the plugcan be replaced and quite fre-quently no spare plugs are atonce vailable. The grease plugwhich is shown in the illustrationis the invention of L. P. Welfley,Hinton, W. Va., and has beenpatented by him. The body ofthe plug is cored out and a boltis passed through, as shown, witha taper head bearing against thesides of the plug, which aretapered to conform to the bolthead. In order to lock the plugin any position, it is only neces-sary to tighten up the nut on theouter end of the bolt; the samewrench can be used both fortightening this nut and for screw-ing down the plug in the method of locking preventsany outward movement of theplug, and therefore any slackingoff of the pressure on the is claimed for this device thatno injurious pressure is put onthe threads and also that thecost of manufacturing the plug is quite Grease Plug ShowiLocking Bolt. NON-VIBRATING CHAIR FOR PARLORCARS In order to reduce the vibration transmitted to passengers inparlor cars, a special type of chair pedestal has recently beendevised. In the construction of this seat there is used a centralshaft connected at its upper end to a metal frame, which in turnis secured to the seat frame. This shaft passes through thebase, or pedestal, of the seat and has nuts on the lower end for
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
