. The universal assistant, and complete mechanic : containing over one million industrial facts, calculations, receipts, processes, trade secrets, rules, business forms, legal items, etc., in every occupation, from the household to the manufactory. The average life of a car wiieel under a load of 3^ tons, is The weight of iron rails per mile varies from 78 tons. 11 cwt.,4-S !!»., to tons. 3 cwt., 84 lbs., according as the rails range from50 lbs. to 100 lbs. weight to the yard. No. of 15 ft. rails per mile, 704 I i^o. of 18 ft rails i)er mile, 587 16 ft. eeO I 20 ft. 523 A ri*e
. The universal assistant, and complete mechanic : containing over one million industrial facts, calculations, receipts, processes, trade secrets, rules, business forms, legal items, etc., in every occupation, from the household to the manufactory. The average life of a car wiieel under a load of 3^ tons, is The weight of iron rails per mile varies from 78 tons. 11 cwt.,4-S !!»., to tons. 3 cwt., 84 lbs., according as the rails range from50 lbs. to 100 lbs. weight to the yard. No. of 15 ft. rails per mile, 704 I i^o. of 18 ft rails i)er mile, 587 16 ft. eeO I 20 ft. 523 A ri*e of 60« in the tf a. crstrje of a 25 ft. raU lengthens it to 25 ftI ia. The la£t table refers to No. of rails required for single track. I ^ < „.
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Keywords: ., bookcentury1800, bookdecade1870, booksubje, booksubjecttechnology
