. Science of railways . While the knives are constructed strong enough toremove hard packed snow and sand, they are pur-posely designed so as to break when striking guardrails or any obstructions without damage to theother parts, and can be readily and quickly replaced. This flanger is operated by compressed air bymeans of a cylinder located on or near the run-ning board, and is under full control of the engineerby means of an air cock in the cab. It may thus be raised instantly to clear crossings,guard rails, etc. There is also a hand lever arrange-ment running to the cab, so that the enginee
. Science of railways . While the knives are constructed strong enough toremove hard packed snow and sand, they are pur-posely designed so as to break when striking guardrails or any obstructions without damage to theother parts, and can be readily and quickly replaced. This flanger is operated by compressed air bymeans of a cylinder located on or near the run-ning board, and is under full control of the engineerby means of an air cock in the cab. It may thus be raised instantly to clear crossings,guard rails, etc. There is also a hand lever arrange-ment running to the cab, so that the engineer ma>operateit by hand or hook it up out of use in case theair pump should fail. It is claimed that torpedoes may be used with no 570 LOCOMOTIVE APPLIANCES. 571 danger of their displacement by this flanger in opera-tion through the hardest snow. It is further claimedthat its use prevents derailments caused by enginetruck wheels mounting hard packed snow or sand,and also prevents loss of hauling power of locomotives. Fig. 1. The Q & C-Priest Snow Flanger as Attached to Locomotive (Pilot Removed to Show Working Parts of Flanger.) caused by the intervention of snow and ice betweenthe driving wheels and rails. It avoids tire and railcutting due to slipping in snow. A pilot plow of any size can be carried in the usualmanner without interference with this device. AUTOMATIC BRAKE-SLACK ADJUSTER. While there have been many types of brake-slackadjusters used on cars and locomotive tenders, thatadjuster formerly known as the McKee, but now madeby the Westinghouse Co., and called by the lattername, has been used more extensively than any other. The accompanying engraving shows a coach ortender brake cylinder and levers with the Westing-house slack adjuster applied to the back head. As
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