. Railway mechanical engineer . of the integral type used infreight cars. The center plates are drop-forged steel. longitudinally on the top of the box, and four layers arelilaced at tlie car ends to correspond with the sides. The hair felt referred to consists of .)4-in. hairfelt placed between two sheets of 90-pound specification paper,and securely sewed together. After the insulation has lieen applied, the sides, ends androof are attached. These parts are also reinforced with March, 1917 RAILWAY MECHANICAL ENGINEER 135 U-shaped braces, and are so designed that the riveting canall
. Railway mechanical engineer . of the integral type used infreight cars. The center plates are drop-forged steel. longitudinally on the top of the box, and four layers arelilaced at tlie car ends to correspond with the sides. The hair felt referred to consists of .)4-in. hairfelt placed between two sheets of 90-pound specification paper,and securely sewed together. After the insulation has lieen applied, the sides, ends androof are attached. These parts are also reinforced with March, 1917 RAILWAY MECHANICAL ENGINEER 135 U-shaped braces, and are so designed that the riveting canall be done from the outside. This also permits removing aside, end or roof, for repairs, without disturbing any otherpart of the car. The connections between inside and outsidesteel shells are wood. The drains are made of induratedfibre. Hence there are no metal connections between theinside and outside steel shells. The ice jaskets are of the same construction as now stand-ard on other Pennsylvania Railroad refrigerator cars, the. Hand-Brake End of Refrigerator Car bulkhead in front of each ice basket being made of two coursesof wood with an air space between general dimensions follow: Length uver niMile sills 52 ft. SA in. Length between ice chamber bulUieads 42 ft. 8J4 in. Width over sheatliing 9 ft. 6A in. Width over roof 10 ft. OM i. Width inside 8 ft. 5ij in. Height inside (average) 6 ft. 9^ in. Weight of car. empty (lb.) 78,000 Ice capacity of (11).) 10,000 Loading caiiacily (lb.) 50,000 Loading capacity (cu. ft.) . 2,450 Distance between centers of trucks 3S ft. 0 in. Total wheetbase 43 fl. 6 in. Desir.^ble Features for Goggles.—In Technical Paper102, i)ublished by the Department of the Interior, J. , of the United States Public Health Service, enumer-ates the following features as desirable in goggles intendedto protect the eyes from the injurious effects of intense light:1—Should shut out harmful rays. 2—Reduce the retinalimage to a safe
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
