. Electric railway journal . oing up. The chains which carry the weight make a completecycle in sixteen seconds which means two blows by eachweight in this time, or a total of about thirty-eightblows per minute for the five hammers. The machinewill break about 50 to 150 ft. of track per hour withtwo men at a labor cost of about 1 cent to 2 cents perfoot of track. New Ear for Trolley Lines THE General Electric Company has recentlydeveloped a new form of strain ear, known as theForm S, for use in trolley construction. It consists oftwo parts, the shoe and the body, the latter being madeof mallea
. Electric railway journal . oing up. The chains which carry the weight make a completecycle in sixteen seconds which means two blows by eachweight in this time, or a total of about thirty-eightblows per minute for the five hammers. The machinewill break about 50 to 150 ft. of track per hour withtwo men at a labor cost of about 1 cent to 2 cents perfoot of track. New Ear for Trolley Lines THE General Electric Company has recentlydeveloped a new form of strain ear, known as theForm S, for use in trolley construction. It consists oftwo parts, the shoe and the body, the latter being madeof malleable iron and the former of either iron or brassas desired. It is installed without the use of solder. The new ear has several distinct advantages overformer types, in that it has a renewable shoe, or wear-ing part, and the shoe can be removed without the use ofblock and tackle, or without disturbing either the trolleyor anchor wires. In applying it the body is put on thewire and the shoe clamped to it by means of bolts which. Strain Ear Details fit on the threaded studs on the shoe. Once the body isin position it can stay there indefinitely, it being asimple matter to remove the shoe by loosening theclamping nuts. In clamping the shoe into position the wire is slightlybent to follow the inequalities between the shoe and thebody, which prevents the shoe from slipping on the anchor wires are attached to extension arms with5-in. centers, preventing the trolley harp of a wildtrolley from jamming or becoming wedged beneath thetrolley and anchor wires. The shoe, which is the onlywearing part, can be easily removed and replaced at alow cost without the necessity for special tools, and itscheapness helps considerably in lowering maintenancecosts.
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
