. Locomotive engineering : a practical journal of railway motive power and rolling stock . and can bechanged so as to flood either the dies orthe knife or shut off entirely, while themachine is in motion. The head is theirstandard adjustable, quick opening andclosing dies, and is so swiveled that it canbe reversed and the pipe cut off close to turned out duplicates of each other as tolength, and length of thread. The chasersare five in number, and are set by gradua-tion to any size desired ; they are releasedfrom threading while the machine is inmotion, opened to permit the pipe to passthrough
. Locomotive engineering : a practical journal of railway motive power and rolling stock . and can bechanged so as to flood either the dies orthe knife or shut off entirely, while themachine is in motion. The head is theirstandard adjustable, quick opening andclosing dies, and is so swiveled that it canbe reversed and the pipe cut off close to turned out duplicates of each other as tolength, and length of thread. The chasersare five in number, and are set by gradua-tion to any size desired ; they are releasedfrom threading while the machine is inmotion, opened to permit the pipe to passthrough to the cutting-off knife, and closedinstantly and positively. They can besharpened by grinding, and are readily re-placed by chasers cutting any stj-le orpitch of thread. In operating, it is butnecessary to insert the pipe, start up themachine, move the dog to close the vise,move the head to the pipe, and the ma-chine will do the rest. This machine ismade in two sizes, the No. i cutting from% to 2-inch pipe, inclusive, and the No. 2from I to 4-inch pipe, inclusive. The Answers TO THE. the grippers. The vise is opened andclosed while the machine is in motion bythe movement of a dog, either forward orbackward. The sleeve operating the viseis adjustable, and can be adapted to thewear consequent upon long usage, andalso to the variation in the size of the use of the nipple grips, pipe of allsizes within the range of the machine canbe threaded, thread to thread. The nipplegrips can be closed on the threaded endsof the pipe without injury to the thread,thus avoiding the necessity of screwingthe nipple into the grips after they areclosed. This is a feature no other machinehas. It will make left-hand threads aswell as right. The makers furnish with this machine athreading gage, which works automatically,and releases the chasers when the desiredlength of thread has been cut. With thisarrangement, any number of nipples can be The Railivay Age, of Chicago, has pub-lished a very a
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
