Canadian wood products industries . would be gratifyingto be able to publish brief descriptions of severalsimple but practical systems in the July CanadianWoodworker. Calculating Speed of Pulleys Joliette, P. Q.,May 8th, 1922. Editor, Canadian Woodworker. Can you give me the rule for calculating the sizeand speed of pulleys. Suppose I have a motor run-ning at 1,800 , with a 5-inch pulley and wantto run a machine at 150 R. P. M., what size pulleywould I require on the machine. Sincerely yours,R. T. Brazeau. A pulley 60 inches in diameter, if driven by a 5-inch pulley on a motor running 1,
Canadian wood products industries . would be gratifyingto be able to publish brief descriptions of severalsimple but practical systems in the July CanadianWoodworker. Calculating Speed of Pulleys Joliette, P. Q.,May 8th, 1922. Editor, Canadian Woodworker. Can you give me the rule for calculating the sizeand speed of pulleys. Suppose I have a motor run-ning at 1,800 , with a 5-inch pulley and wantto run a machine at 150 R. P. M., what size pulleywould I require on the machine. Sincerely yours,R. T. Brazeau. A pulley 60 inches in diameter, if driven by a 5-inch pulley on a motor running 1,800 , willgive you a speed of 150 , which is what yourequire. The rule is the of the driver shaftdivided by the desired of the shaft to be driven,and multiplied by the of the driver you are figuring the other way, and had a shaftwith a certain sized pulley upon it, which you wantedto drive at a certain speed from a shaft of a knownspeed, you would reverse the formula and work theother If you have a large number of small articles toturn get the advice of our advertisers who specializein turning machines as to whether they can make youan automatic lathe to turn them. The wood finish that willnot paper mark in shipment A product finished with ZAPONITE, thePioneer Wood Lacquer, is proof againstthe harmful effects of paper marking whenwrapped and packed for shipment. Being extremely hard and uneffected bymoisture, heat and climate changes, aZAPONITE finish never gets sticky, itnever paper marks and it never shows theimprint of burlap wrappings — anotherreason why ZAPONITE is the ideal finishfor quality products made from wood. Let our Service Division help you todetermine how ZAPONITE can be usedin finishing your products at a SAVING inyour production costs. Write us aboutthis service TODAY. Celluloid Zapon Company 200 Fifth Avenue, New York CityBranches: Chicago, New Haven, Los Angeles THEl*j&NEEft ZAPONITE
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