. American engineer and railroad journal . save time to some of our readers who need such a convenienceand who li,ivi neither the time nor opportunity to make adraning, .Vs the drawings show the construction very clear-ly, and as most of the dimensions are given, we may pass onat once to the HTDRAtTLIC CRANE FOR CAK WHEELS. Hydraulicpower is very extensively used al Oneonta, Green 30- arms, has an internal diameter of 4| in., with a shell s ■ stroke is 5 ft. 3 in. The piston-head is provided with adouble leather packing, so that in case the friction is too greatfor the unloaded tongs
. American engineer and railroad journal . save time to some of our readers who need such a convenienceand who li,ivi neither the time nor opportunity to make adraning, .Vs the drawings show the construction very clear-ly, and as most of the dimensions are given, we may pass onat once to the HTDRAtTLIC CRANE FOR CAK WHEELS. Hydraulicpower is very extensively used al Oneonta, Green 30- arms, has an internal diameter of 4| in., with a shell s ■ stroke is 5 ft. 3 in. The piston-head is provided with adouble leather packing, so that in case the friction is too greatfor the unloaded tongs to lower, a pressure can be admitted atthe top to force the piston-head down. The work is donerapidly and silently, about two seconds being required to lifta wheel from the floor. The lift being direct, there is nothingat all to iret out of ONEONTA SHOP TRUCK, DELAWARE & HUDSON CANAL COMPANY. Island and Whitehall, and we shall p\iblish a number of inter-esting tools that have been built at the shops in which a waterpressure is as the motive power. The water is usuallytaken from the village or city mains, which are under a con-stant pressure of from 75 lbs. to SH) lbs. per square inch. Iutwhen the pressure falls below these tigures for any ,thereis a pump in the shop which is utili/ed to thatrequired for the operation of the hydraulic machinery. HYUUAt; BOOM CUAXK. This crane stands out of doors at one end of the Oneontashops, and is used principally for loading and unloading shopmaterials and supplies, a large proportion of the work consist-ing of the handling of car wlicels. Tlieeonstruclion is exceed-ingly simple. There is a solid hollow mast, lieneatli and ceu-tralWith which is the direct .acting hvdraulic cylinder with a Vol. LXVn, No. 4.] AND RAILROAD JOURNAL. 173 stroke of 7 ft. 10 in
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
