IMPROVEMENTS ON HOISTS

PERFECTIONNEMENTS AUX ASCENSEURS

Claims

Claim lst In hoists, the car provided with a counter balance weight adapted to lift the oar and an average load, in combination with the check rope, or its equivalent, connected to the brake and to operating machinery in such a manner that, by the movement of the check rope, a given distance, the brake is thrown off, which the continuation of the said movement throws into gear with the hoist auxiliary operating machinery. 2nd In combination with a hoist provided with an ordinary hand rope, and in which the counterbalance to the car is adapted to lift the car and an average load, an auxiliary motor arranged so that it can be thrown into gear with the hand rope by the check rope after the said check has first thrown off the brake. 3rd In combination with a hoist provided with an ordinary hand rope, and in which the counter-balance to the oar is adapted to lift the oar and an average load, friction mechanism operated by the check rope, and arranged to grip the hand rope simultaneously with the starting of an auxiliary motor operated by the said cheek rope, for the purpose of im-parting motion to the friction mechanism subsequent to the releasing of the brake, also operated by the check rope referred to. 4th The revolving spindle A held in stationary bearings, and having keyed, or otherwise fastened, to it the grooved pulley B situated opposite to the band rope C, a spur wheel D fastened to the spindle A and meshing with the spur wheel E which is fastened to the pivoted spindle F, the grooved pulley G secured to the spindle F and situated in a position corresponding with the pulley B, in combination with mechanism connected to the check rope H by the movement of which the spindle F is adjusted upon its pivots so as to cause the ground pulleys B E to grasp the rope C on whichever side of the hoist it may be necessary to apply power to the said rope, for the purpose of raising or lowering the car, as the case may be. 5th In combination with a hoist provided with an ordinary hand rope, and in which the counter balance to the car is adapted to lift the car and an average load, an auxiliary motor so arranged in connection with the hand ropes that it can be applied thereto for the purpose of assisting in either elevating or lowering the load.