. The Street railway journal . 6 lb. .005-in. flexible mica @ .50 lb. .008-in. flexible mica @ .50 .2 lb. .025-in micanite @ $ 30 gr. yd. i-in. linen tape @ .588 gr. yd. 3^-m. linen tape @ .50 I gal. denatured alcohol @ .37 04 .8 cans potash @ .046 04 lb. 1/2 & solder @ .20 26 .4 gal. .07-B air drying Japan ©.45 18 .1 lb. .015-in. micanite @ $ , .15 .1 lb. rosin @ .04 01 .7 yd. cheesecloth @ .02875 • 0^ lb. .005 gray horn fiber @ .25 40 $34-83 Labor, including foreman Total $ *Using new copper increases cost of material about $12 per se
. The Street railway journal . 6 lb. .005-in. flexible mica @ .50 lb. .008-in. flexible mica @ .50 .2 lb. .025-in micanite @ $ 30 gr. yd. i-in. linen tape @ .588 gr. yd. 3^-m. linen tape @ .50 I gal. denatured alcohol @ .37 04 .8 cans potash @ .046 04 lb. 1/2 & solder @ .20 26 .4 gal. .07-B air drying Japan ©.45 18 .1 lb. .015-in. micanite @ $ , .15 .1 lb. rosin @ .04 01 .7 yd. cheesecloth @ .02875 • 0^ lb. .005 gray horn fiber @ .25 40 $34-83 Labor, including foreman Total $ *Using new copper increases cost of material about $12 per SHOE DATA The third-rail contact shoe used on the elevated divisionis of the double-link suspension, plain overrunning gravitytype which has been in successful use since 1901; the sub-way shoe, as shown in the accompanying drawing, is of thePotter two-bearing type, arranged for running over thehead of the contact rail in the underground section of thesubway division and over the head of the contact rail in the. Section A-A PLAN AND SECTION OF SUBWAY DIVISION THIRD-RAIL SHOE viaduct section. The accompanying figures are for theyear ending Dec. 31, 1907, and afford an interesting com-parison between the subway and elevated costs for similaritems: Subway. Elevated. Average life in contact shoe-miles 45,720 56,008 Average cost per 1000 contact shoe-miles $.02322 $.01241 PAINTING PRACTICE The Interborough Rapid Transit Company has been oper-ating steel cars for nearly four years, during which periodthey have received the same complex and expensive treat-ment as the wooden coaches. The company has come tothe conclusion, however, that as these cars are of steel andare operated underground for the greater part of their runs,there is no valid reason why they should be maintained dif-ferently from any other metal structures which retain theirstrength indefinitely if properly painted to resist are therefore being conducted with a first-class oil paint wi
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
