Treatise on Leather Belting |
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ADDED FOR FOURTH Angle Nat angle of wrap arc of contact backbone belt dressing belt drive belt speed belt tensions belting butt belting leather capacity cement cent center distance centrifugal force Chrome coefficient of friction creep crossed belt crowning currying D₁ d₂ DEGREE Angle Diam double belts driven pulley edge effective pull elasticity factor of safety feet per minute fibers flesh side formula grain side guide pulleys hide horse power idler drive inch of width increase initial tension lace laps leather belt line shaft load LOGARITHM MANTISSAS Third machine MANTISSAS Third Figure manufacture modulus of elasticity motor open belt plane plies power transmitted pulley diameters quarter-turn drive radians ratio revolutions per minute running shown single belt slack side slip small pulley specifications stretch strips surface T₁ T₂ TABLE Tanned Belting tensile strength tests thickness tight side transmission waterproof weight