US481926A - Elevator and carrier - Google Patents

Description

(No Model.) 3 SheetsSheet'2.

P. H. BRODESSER.

ELEVATOR AND CARRIER.

No. 481,926. Patented Sept. 6, 1892.

(No Model.) 3 Sheets-Sheet 3. P. H. BRODESSER. ELEVATOR AND CARRIER Patented'Sep t. 6/1892.

TATES ATENT ELEVATOR AND CARRIER.

SPECIFICATION forming part of Letters Patent No. 481,926, dated September 6, 1892.

Application filed June 15,1891- Serial No. 396A03- (No model.)

To all whom it may concern.-

Be it known that I, PETER H. BRODESSER, of Milwaukee, in the county of Milwaukee and State of Wisconsimhave invented a new and useful Improvement in Elevators and Carriers, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.

My invention relates to improvements in the elevator and carrier for which Letters Patent No. 451,260 wereissued to me on April 28, 1891.

The present invention is directed to improvements in that device whereby the mechanism is simplified in some parts, is made capable of more extended use, and is provided with devices whereby its operation is facilitated and otherwise improved.

In the drawings, Figure l is an elevation of a complete device embodying my invention. Fig. 2 is a side elevation of the windingdrums and related mechanism.v Fig. 3 is a top plan View of the winding-drums and related mechanism shown in Fig. 2, taken on line 3 3 thereof. Fig. 4 is a top plan view of the carriage and truck traveling thereon, a portion of the carriage being broken away for convenience of illustration. Fig. 5 is a vertical section of the carriage and truck on line 5 5 of Fig. l. Fig. 6 is an elevation of a brake attached to the truck and adapted for clutching the hoisting-cable. Fig. 7 is a top plan View of the brake shown in Fig. 6. Fig. 8 is a detail of a bracket carrying the pulley, to which one extremity of the hoisting-cable is attached.

Ais the frame on which the operative mechanism is supported and includes a two-railed track or tramway B. The outer end B of the tramway is desirably hinged to the main part of the track, substantially as described in my former patent. A carriage 0 travels on the tramway and is connected to an endless cable D, which runs over pulleys E E, pivoted, respectively, at the extremities of the tramway over the pulleys F F and the thereto quartered pulleys G G and winds around the drum H. The drum H is journaled at one extremity eccentrically in the cylindrical box I, revoluble in bearings therefor in the frame. The box I' is provided with a fixed lever-handle J, by which the box may be rotated sufficiently to'shift the friction-wheel K, fixed on the axle of the drum H, into and out of contact with friction-wheels on shafts L and N. The shafts L and N are in mechanical connection by means of a belt 0, running on wheels on the two shafts, and the shaft L is provided with a band-pulley M, adapted to carry the power-supplying belt. It will be understood that by shifting the drum H into frictional contact through its wheel K with the revolving shafts L orN the drumwill be rotated in one or the other direction and the carriage thereby run to right or left, as desired.

I provide a brake for locking the drum H, which brake consists of a strap P, looped about a Wheel Q, fixed on the axle of the drum, the extremities of which strap are attached eccentrically to the lever-handle R, pivoted on the frame. A spring S, interposed between the brake-handle and the frame, is advisedly used to hold the brake yieldingly out of engagement with the drum-Wheel. A hoisting-cable T, attached at one end to the block of a sheave U, runs over pulleys V V, journaled in the truck WV about the sheave in the load-carrying tackle-block Y and over the pulleys Z and Z and winds on the drum 0'. The pulley Z is located at the outer extremity of the tramway,

preferably about midway between the waysB B, and the sheave U travels laterally on a rodbracket D, secured to the frame or a suitable fixed support at the other extremity of the tramway. Opposite guide-pulleys E E, located near to and quartered with reference to the pulley V, are journaled in the truck WV and receive the hoisting-cable between them and guideit over the pulley V. The carriage O has considerable length laterally of its line of travel and the truck W travels thereon laterally, so that by reason of this lateral travel of the truck the load liftingandcarrying tackle Y may be shifted a considerable distance to the right or left between the rails of the tramway and at right angles to the line of travel of the carriage. The travel of'the sheave U in the bracketD' is adapted to accommodate the hoistingcable to the travel of the truck W on the carriage 0. As this lateral travel of the truck on the carriage is desired at the inner or right-hand end of the tramway, the

movement of the truck is permitted, so far as the pulley Z at the other extremity of the tramway is concerned, by reason of the flexibility of the cable and the distance of the carriage from the pulley.

A brake for gripping the hoisting-cable consists of a cross-beam F, aflixed to the truckframe, which cross-beam is provided with an aperture G, th rough which the hoisting-cable Io runs, aWedge-form ed key 11', movable on dovetailed ways therefor in the cross-beam alongside of the aperture G, arranged to bear against or be released from the cable as it is pushed into or raised out of the beam, and a 1 lever I, pivoted medially on the cross-beam and connected by a pin K to the key H. A slot in the side of the cross-beam and a registering-slot in the lever 1', into which the pin K projects, provide for the vertical movement of the key actuated by the oscillating lever. A weight L ',hung on one arm of the lever I, is adapted to lift the key 11 and release the hoisting-cable,and a hand-rope l attached to the other arm of the lever, is a means for oscil- 2 5 lating the lever and forcingthe keyinto its seat against the cable, thus gripping it to the truck. WV hen thus gripped to the truck, the weight supported on the tackle Y tends to tighten the clutch of the key 11' on the cable by reason of the downward strain thereon. This brake is adapted for clutching the hoisting-cable t0 the truck, and thus supporting the load on the tackle Y when it has been raised to the height desired while conveying it from one 3 5 point to another by means of the carriage traveling on the tramway. The position of the truck upon the carriage can now also be shifted by simply manipulating rope M laterally or by pushing the load.

The axle of the winding-drum O at one end is journaled eecentrically in the cylindrical box N, revoluble in bearings therefor in the frame. The box N is provided with a rigid leverhandle 0', and thereby the friction- 5 wheel P, fixed on the axle of the drum, may

be shifted into contact with a friction-wheel 011 the shaft L, or into engagement with a block R, fixed on the frame and serving as a brake to impede or stop the rotation of the drum. By shifting the winding-drum 0 into contact with the driving-shaft L the hoistingcable is wound thereon and a load on the tackle Y is raised, and when at a sufficient height the hoisting -cable is locked to the truck by means of the brake-key H, and the load is let down by releasing the brake-key and shifting the drum 0 away from the driving-shaft L and holding it, if required, against the brake-block R with such power as is nec- 6o essary to lower the tackle Y and its load at proper speed.

The truck W and the carriage C are each provided with flanged traveling wheels, and besides these the carriage is provided with wheels S, bearing against the inside of the rails of the tramway to prevent lateral movement of the carriage and undue strain on the flanges of its traveling wheels.

The truck is made to travel on the carriage C by means of lateral power being applied to the hoisting-rope or the load carried thereby; or, more conveniently, the rope M, which is also employed for the purpose of operating the parts which secure the load in an elevated position, may be manipulated to accomplish the same purpose and is the means which I prefer to employ therefor.

From the foregoing description of the mechanism and of the operation of the various parts thereof the use of the entire device will be readily understood by all persons skilled in the art.

What I claim as new, and desire to secure by Letters Patent, is

1. In an elevator and carrier of the class in which a carriage actuated by an endless belt travels on a tramway, the combination, with the frame and two parallel shafts journaled in boxes fixed on the frame, which shafts are connected mechanically so as to revolve in opposite directions, one shaft being the driving-shaft connected mechanically to the power-supply, of a drum interposed between the shafts, about which drum the endless carriageactuating cable is wound, a friction-wheel on the axle of the drum near one extremity of the drum, adapted to contact severally with corresponding wheels on the shafts, and a cylindrical box provided with a lever-handle, in which box the axle of thedrum at that end on which the friction-wheel is fixed is journaled eccentrically, the box itself being journaled revolubly in a bearing on the frame, substantially as described.

2. In an elevator and carrier, the combination, with a tramway and a carriage actuated thereon by an endless cable, of a truck 1nount ed and arranged to travel laterally on the carriage, pulleys journaled in the truck at right angles to its line of motion, a hoisting-cable runningon and dependingbetween the pulleys in the truck, and a sheave-block at the end of the tramway, supported and traveling laterally parallel with the truck on a rod-bracket, to which sheave-block the extremity of the hoisting-cable is attached, substantially as described.

3. In an elevator and carrier, the combination, with a tramway and a carriage adapted to travel thereon, of a truck adapted to travel laterally of the tramway on the carriage, pulleys in the truck, over which a hoisting-cable runs, and a sheave, to which the extremity of the hoisting-cable is attached, which sheave is supported and travels laterally parallel with the truck on a bracket therefor, substantially as described.

4. In an elevator and carrier, the combination, with a hoisting-cable, of a brake for clutching and locking the cable independently of the location of the carrier on its track, comprising a suitable relatively fixed beam through which the cable runs in an aperture therefor, a wedge-shaped key arranged to slide in ways therefor alongside the cable-aperture, an oscillating lever pivoted on the beam at one side of the cable-aperture, a pin projecting from the key through a slot in the beam into an arm of the lever, a Weight suspended from one arm of the lever, adapted to tilt the lever and hold the key normally out of engagement with the cable, and a hand-rope attached to the other arm of the lever, by which

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