. Electric railway journal . whengoing on the segment, is raised 3/32 in. plus the thick-ness of the segment, thus making the total movement of the tip almost % in. This bending of the finger springis very excessive and in a short time will result in thebreaking of the phosphor bronze spring or the coppershunts. Segment tips should be renewed when so badlyworn that the proper adjustment cannot be obtainedon the fingers. Fingers should be adjusted by twisting to make con-tact all the way across the controller segments. Fail-ure to do this may result in the overheating of the seg-ments and finge
. Electric railway journal . whengoing on the segment, is raised 3/32 in. plus the thick-ness of the segment, thus making the total movement of the tip almost % in. This bending of the finger springis very excessive and in a short time will result in thebreaking of the phosphor bronze spring or the coppershunts. Segment tips should be renewed when so badlyworn that the proper adjustment cannot be obtainedon the fingers. Fingers should be adjusted by twisting to make con-tact all the way across the controller segments. Fail-ure to do this may result in the overheating of the seg-ments and fingers, causing the spring to soften andlose tension. Tool for Plumbing Leaning Iron Poles BY S. L. FOSTER Chief Electrician United Railroads of San Francisco For straightening up iron poles that have been pulledout of plumb, whose concrete setting has been under-mined by curbstone installing operations, washouts, etc.,or which were set originally with too much rake or toolittle rake, the device shown is used by the United Rail-. POLE STRAIGHTENING JACK IN PLACE roads of San Francisco without disturbing the concretesettings of the poles. Its action is clearly shown in the illustration. Thehouse-movers jack set at an angle of 45 deg. is keptfrom sliding along the pavement or sidewalk by beingattached to the base of the pole by a chain. The cres-cent-shaped wrought-iron end of the 4-in. x 6-in. taper-ing oak strut is prevented from slipping upward on thepole by an iron band bolted around the pole. It occasionally though rarely happens that an ironpole is broken off before it is quite straightened. Insuch a case a short piece of rail is inserted as a splicefor the pole, the voids between rail and tubular interior February 5, 1916] ELECTRIC RAILWAY JOURNAL 277 of the pole filled with concrete and the pole left lookingthe same and as strong as before it was broken. The efficiency of this simple device was most clearlydemonstrated when it was utilized to straighten about500 heavy tubular
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