. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . e illustration, [n operation the rolls cylinder to the maker for repairs, andthe latter usually furnishes the information that no other course is possible. Such was the condition i affairs in tinNorfolk & W( omething more RAILWAY AND LOCOMOTIVE ENGINEERING September, 1920 arc put ia the bushing and the Mange onUJ up against the end of the cylinder. The rolls are turned > two J, ■ ratchet as shown. and this i an be done by Four men. The time required to remove an oldcupper bushing and put i
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . e illustration, [n operation the rolls cylinder to the maker for repairs, andthe latter usually furnishes the information that no other course is possible. Such was the condition i affairs in tinNorfolk & W( omething more RAILWAY AND LOCOMOTIVE ENGINEERING September, 1920 arc put ia the bushing and the Mange onUJ up against the end of the cylinder. The rolls are turned > two J, ■ ratchet as shown. and this i an be done by Four men. The time required to remove an oldcupper bushing and put in a new one andhave the machine in working order againis about five hours. The thicknibushings thus far inserted and rolled outi> about As for the durability and effectivenessoi the \: one of the bushings lias nowbeen in service for about twenty months with no leakage and no demands for at-tention, lUShingS used are made of sheet copper cut, rolled into a cylinder and so)dered with an outside diameter th sib into the PLATES been ex-perienced in obtaining | piates. I Fl IB I OPPER BUSHING 0HYDRAULIC PRESS •or making driving hox lubricators, apunch has been designed to be used en apunching machine to do the plates are of about 14-gauge steeland the perforations are 3/16 in. in diam-eter and H in. from center to center. Theplates punched are about 15 in. wide. A set of gang punches are attached tothe head. This gang consists of four rowshaving 26 punches in each row. so that104 holes are punched at each stroke ofthe head. The sheet is automatically fedunder he punch by a knurled rollerpressed down on the sheet and turned sothat the sheet is moved a distance equalto four times the pitch of the hole-upward stroke of the punch head. This isa simple pawl and ratchet feed that doesnot start to act until the punches are clearof the sheet. The work done is even andwithout a flaw. PRONG BRAKE FOR TESTING AIR DRILLS It having been found that repair
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
