. Electric railway journal . ing the laying of the track. Then thecar was started and the scraper was pulled in towardthe track, gathering a load as it came. The cost men-tioned above covered everything (including the motor-mans wages) except the power used by the car. Frogless Switch Makes ContinuousRail for High-Speed Track* A mechanism for eliminating the break in the railand the two pieces of guard rail necessary, and to forma continuous rail at a switch, has been developed by theWalls Frogless Switch & Manufacturing Company, aColorado corporation of Kansas City, Mo. This con-sists of a se
Image details
Contributor:
Reading Room 2020 / Alamy Stock PhotoImage ID:
2CH4B5DFile size:
7.1 MB (745 KB Compressed download)Releases:
Model - no | Property - noDo I need a release?Dimensions:
1987 x 1257 px | 33.6 x 21.3 cm | 13.2 x 8.4 inches | 150dpiMore information:
This image is a public domain image, which means either that copyright has expired in the image or the copyright holder has waived their copyright. Alamy charges you a fee for access to the high resolution copy of the image.
This image could have imperfections as it’s either historical or reportage.
. Electric railway journal . ing the laying of the track. Then thecar was started and the scraper was pulled in towardthe track, gathering a load as it came. The cost men-tioned above covered everything (including the motor-mans wages) except the power used by the car. Frogless Switch Makes ContinuousRail for High-Speed Track* A mechanism for eliminating the break in the railand the two pieces of guard rail necessary, and to forma continuous rail at a switch, has been developed by theWalls Frogless Switch & Manufacturing Company, aColorado corporation of Kansas City, Mo. This con-sists of a section of rail which is made to take the placeof the usual frog, and which is turned with the switchpoint to form a section of either the main-line track orthe switch track. This section of swing rail is 7 ft.long and rests on a plate of steel carried on the trackties. As the section of rail is thrown with the switchpoint to either position, it is locked on both sides ofeither end to prevent it moving while a train or car. FROGLESS SWITCH INSTALLED ON SANTA FE RAILWAY TRACK is passing over it. One of these locks at each end isaffected by inserts in the bearing plate, and the otherby means of a rod running parallel with the rail andcontained in a housing, which inserts a bolt at eitherend, the combination affecting five locks in 7 ft. of rail.The steel plate under the frog is 15 ft. long, taking careof the bearing area for the 7-ft. rail section and supply-ing 3 ft. anchorage at either end leading onto the frog.Expansion and contraction are taken care of by mount-ing a short section of rail at each side of the swingsection, and then as rail and bearing plate expand orcontract, no difficulty is had with the rails binding. Thermo-Couple and Potentiometer forHot Spot TemperatureMeasurement The importance of knowing the temperature of thehottest part in electrical machines is now well recog-nized. An accurate and reliable method of measuringtemperature in parts inaccessible to thermo