PULLEYS—100 R. P. M.—BELT CONTACT 1/2 CIRCUM.

NOTE—The above table is based on one Horse-power per inch of width for each 500 feet per minute belt speed. The horse-power for other pulley speeds in proportion.

[{248}]

HORSE-POWER OF DOUBLE BELTS.

PULLEYS—100 R. P. M.—BELT CONTACT 1/2 CIRCUM.

NOTE—The above table is based on one Horse-power per inch of width for each 500 feet per minute belt speed. The horse-power for other pulley speeds in proportion.

[{249}]

USEFUL CONSTANTS, ETC.