. American engineer . 7. Paper 8. Paper, with corks projecting .087 -in 9. Paper, with corks projecting (about) .015 in *Increased distance traveled by the belt as compared to the face of thepulley as a percentage. The creep is also included in these figures. mitting capacities of the different pulleys when based on constantarcs of contact and constant belt tensions. These values do notrepresent actual observations from the tests, but were calculatedby means of Nagles formula using an arc of contact
. American engineer . 7. Paper 8. Paper, with corks projecting .087 -in 9. Paper, with corks projecting (about) .015 in *Increased distance traveled by the belt as compared to the face of thepulley as a percentage. The creep is also included in these figures. mitting capacities of the different pulleys when based on constantarcs of contact and constant belt tensions. These values do notrepresent actual observations from the tests, but were calculatedby means of Nagles formula using an arc of contact of 180 deg.,and a maximum belt tension of 250 lbs. per sq. in. of crosssection. NEW TYPE OF DRILL SOCKET .X drill socket, differing in several particulars from any nowon the market, is shown in the accompanying illustration. It isprovided with a lip around the bottom with grooved extensionsso arranged as to permit the insertion of a key for readily sepa-rating nested sockets. It also forms a reinforcement at the base.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
