File:American engineer and railroad journal (1893) (14573740648).jpg

Identifier: americanengineer78newy (find matches)
Title: American engineer and railroad journal
Year: 1893 (1890s)
Authors:
Subjects: Railroad engineering Engineering Railroads Railroad cars
Publisher: New York : M.N. Forney
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
the desired point. An elbowwas then put down through a hole in the floor and connectedto the end of the pipe. The pipe was guided into the elbow bypassing a piece of rope of about the same diameter as theinside of the pipe through the elbow and drawing the rope intothe pipe a short distance by means of a snake. The straightlengths of pipe were coupled together quite securely, but theelbow was not tightly secured, so that if at any time itwas desired to remove the pipe it could easily be disconnectedat the elbow and then removed piece by piece. The pipes tothe variable-speed motors each contain six wires, four for themultiple voltage system and two for the incandescent light. In locating the machine tools in the machine shop no atten-tion was paid to the location of the wire boxes. When thetools were connected up it was found that owing to the shortdistance between the wire boxes the wires in all cases could A i BOW, 19(M. AMKRICAX i:\«;i\K;.;i; am, RAILBOAL JQ) B»AL. rr osv //X»/j
Text Appearing After Image:
t*-« -->* -««yi 294 AMERICAN ENGINEER AND RAILROAD JOURNAL. be brought through the floor at about the right spot, to be mostconvenient. This method of wiring the machine tool motors has severaladvantages. The wires are placed under the floor, where theyare entirely out of the way and yet are easy of access if theyneed attention. New tools can readily be added at any pointin the shop and can be wired without tearing up the floor. Each tool is furnished with a panel board, which carries theswitch, fuse block, circuit-breaker and a plug switch for anincandescent light. In most cases the controller is placed onthe machine tool itself at the most convenient point for theoperator, but in the case of some tools, such, as the shapers,which were described in the July; 1904, issue, page 261, thepanel board can be so placed that the controller can be attachedto the back of it and at the same time be convenient to theoperator. As it is very seldom; necessary for the operator touse either th

Note About Images