US295776A - Milo w - Google Patents

Description

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M. W; LOOKE. HOISTING AND CONVEYING APPARATUS.

No. 295,776. Patented Mar. 25, 1884.

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M. W. LOCKE.

HOTSTING AND OONVEYING APPARATUS; No. 295.776.

Patented Mair. 25, 1884.

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M. W; LOGKE.

HOISTING AND CONVEYING APPARATUS.

No; 295,776.- Pat entedMar. 25, 1884.

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MILO W. LOGKE, or tALTIMoRE, MARYLAND, ASSIGNOR or ONE-HALFTO R. SNOWDEN ANDREWS, or SAME PLACE.

HOISTING AND CONVEYING APPARATUS.

. SPECIFICATION forming part of Letters Patent No. 295,776, dated March 25, 1884.

Application filed Jannnryl'l, 1884. (No model.)

Be it known that I, MILO WV. LOOKE, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented new and useful Improvements in Hoisting and Conveying Apparatus, of which the following is a specification.

This invention has for its object to provide novel and efficient means for rapidly transporting heavy loads, such as stones, across rivers, ravines, or from one point to another;

and to such end the invention consists in the mechanism hereinafter described and claimed, reference being hadito the accompanying drawings,in which Figure 1 is a side elevation of an apparatus embodying my invention, parts being broken to better illustrate essential features; Figs. 2

and 3, detail sectional views of the gripping devices forstopping the car at any point on the cable trackway; Fig. 4, a detached perspective view of one of the grippingjaws; Fig. 5, a diagram showing the arrangement of pulleys in the car and in the pulley or tackle block; and Fig. 6, a diagram showing a modification wherein an endless cable is used to draw the'car back and forth on the cable, whether the latter be level or inclined.

Referring to the drawings, the number 1 illdicates a wire cable, which isanchored at each end to extend across a river, ravine, or from one point to another, said cable, as in Fig. 1,

standing in an inclined position, the highest j part passing over agrooved wheel or other support, 2, in a trestle-work. A fall rope or cable, 4, passes over a grooved wheel, 5, in the trestle-work, and extends thence around a sheave in the carriage 6, downward toand around a sheave in the tackle-block 7, upward and around another sheave in the car, downward and around another sheave in the tackleblock, and thence upward to the car, where its extremity is permanently fastened to the car, all as clearly shown by the diagram Fig. 3. The tackle-block is provided at its upper end with a bolt or rod, 8, engaging a hook, 9, fixed to a rock-shaft, 10, journaled in cheek-pieces of the car, ,a lever, 11, being secured to the rock-shaftand extending in opposite directions therefrom, and having at each extremity a pendent cord or rod, by which the rock-shaft is turned in its bearings to swing the hook for engaging 'it with or disengaging it from the bolt or rod of the tackle-block. The car or carriage 6 is providedwith journaled grooved wheels 13 between its checks, which travel on the cable, and to one side of the carriage-frame is secured an arched brace or frame, 14, hav-\ ing a sleeve-bearing, 15, in which is arranged to rotate a shaft, 16, carrying at its outer end a grip-wheel, 17, and having a screw-threaded inner end engaging a screw-threaded collar, 18, to which are pivoted one end of two togglelevers, 19, the other ends thereof being piv oted to the tail ends or shanks 20 of two cablegripping jaws,'2l, which are pivoted together at 22, and can be opened or closed to release or grasp the cable, according to the direction in which the grip-wheel is rotated. An endless hand-chain, 23, passesaround the gripwheel, for the purpose of actuating it to operate the gripping-jaws. By drawing on the endless nected at one end with a drum actuated by i a powerful clutch'engine stationed at one end of the cable 1, so that by the fall-rope the carriage can be drawn along the cable after it has received its load, said fall-rope also serving toraise and lower the tackle or pulley block 7 when detached from the hook 9. The cable 1 is provided with fall-rope carriers 24, each in the form of two plates, carrying a, pulley, 25, at their upper ends, which travels on the cable, and a pulley, 26, at their lower ends, on whichthe fall-rope rests.

These carriers are connected together by cords is connected therewith bya similar cord, 28.

or chains 27, and the one nearest the carriag:/

These carriers follow the carriage as it travel on the cable, and are stopped at regular intervals by the cordsorchains'27 and 28, the 0b ject being to sustain the fall-rope and prevent it from sagging when paid out to permit the carriage to travel on the cable.

The load to be transported from a given spot to any desired place-say, for example, across a river or ravineis secured to the hook 29 of the tackle-block 7 through the medium of clamps, grapples, or other devices, the tackle-block having previously been disengaged from the hook 9 on the carriage and lowered to engage the load by paying out the fall-rope. The clutch-engine is then operated to take up the fall sufficiently to elevate the tackle-block and cause the bolt or bar 8 thereof to engage the hook 9 on the carriage.

To limit the elevation of the tackle-block, the fall-ropeis provided with aspliced branch, 4, permanently connected with the carriage, andof such length that when the fall-rope has been taken up sufficiently to engage the tackleblock with the car the drawing action is removed from the tackle-block and thrown by the branch'4" onto the car, such branch by such time becoming taut, but hanging loose when the tackle-block is lowered to receive a load. The drum of the engine being operated to wind up the fall-rope, the carriage is caused to travel along the cable until it reaches the point thereon where it is desired to stop the carriage for lowering the load, which is accomplished by drawing on the endless hand-chain to turn the grip in the proper direction tocause the gripping-jaws to seize and hold the cable, thus stopping the carriage, after which the proper cord or chain, 12, is drawn upon to rock the shaft 10 and cause the hook 9 to release the tackle-block. The engine is then so operated that the fall-rope pays out and lowers the tackle-block and its load to the desired point,

- the pulley-block being then released from the load and raised to engage the hook on the carriage, after which the tackle-block is raised, engaged with the carriage, the gripping-jaws released, the fall-rope paid out, and the car permitted to travel back along the cable for another load. The cable being inclined, the carriage will rapidly travel back by gravity; but where the cable is inclined the load may be carried from the highest to the lowest part of the cable, or conversely, as desired. As the carriage travels back for another load, the fall-rope carriers follow until stopped by their flexible connections 27 and 28, and when the carriage travels forward these carriers are successively moved forward by the same.

In Fig. 6 I have shown what may be termed an endless rope, chain, or cable in connec-- tion with the fall-rope 4, whereby the carriage may be positively drawn in both directions along the cable. This permits the cable 1 to be placed level, if desired. This rope, chain, or cable passes around a grooved wheel, 30, over pulleys 31, and around a double drum, 32, which .will be connected with the engine by clutch devices, and the rope is connected at its two ends with opposite ends of the carriage. The turning of the drum winds and unwinds ithis rope and draws the carriage along the cable as required, according to the direction in which the drum is turned by the engine. The fall-rope will of course perform' its usual function of lowering and raising the tackle-block.

Having thus described my invention, what dium for moving the carriage on the cable,

substantially as described.

2. The combination, in a hoisting and conveying apparatus, of a cable, a carriage to travel thereon, gripping devices on said carriage for stopping and holding the carriage while both loading and unloading, a tackle block, means whereby the tackle-block may be connected with and supported by the carriage, and a fall-rope connecting the tackleblock and carriage, and serving to raise and lower the tackle-block, and also acting as a draft medium for moving the carriage on the cable, substantially as described.

3. The combination, in a hoisting and conveying apparatus, of a cable, a carriage to travel thereon, gripping devices on said carriage for grasping the cable and stopping and holding the carriage while both loading and unloading, a tackle-block, means for detachably connecting the tackle-block with and supporting it on the carriage, and a fall-rope acting to move the carriage on the cable, and also to raise and lower the tackle-block, substantially as described.

4. The combination of a cable, a carriage to travel thereon havingaswinginghook,atackleblock having a bolt or rod to engage and disengage the hook, gripping devices on said carriage for stopping and holding the carriage while both loading and unloading, and a fallrope for raising and lowering the tackle-block, and also. serving as a draft medium for moving the carriage on the cable, substantially as described.

5. The combination of a cable, a carriage to travel thereon, a pulley-block detachably connected with the carriage, a fall-rope for.

y is thrown uponrthe branch to move the carriage on the cable, substantiallyas described.

7. The combination of the traveling carriage, the rock-shaft, the hook thereon, "the pulley-block having means to engage the hook, and the fall-rope connecting the carriage and pulley-block, for moving the carriage on its support and raising and lowering the pulleyblock, substantially as described.

8. The combination of a cable, a carriage to travel thereon, a rock-shaft mounted in the carriage and carrying a hook, arms extending from said shaft to rock it, a tackle-block having a bolt or rod to engage anddisengage the hook, and a fall-rope passing around pulleys both in the carriage and tackle-block, and acting both to raise and lower the tackle-block,

and to move the carriage on the cable, subv a a 25 i such length that when the tackleblock is stantially as described.

9. The combination of the cable, the can riage thereon, the cablegrip, the swinging raised and engages the-hook the draft isthrown upon the branch to move the carriage on the cable, substantially as described.

10. The combination of the cable, the carriage thereon, the tackle-block, means for detachably connecting the tackle-block with and supporting it on the carriage, the fall-rope connecting the carriageand tackle-block, to raise and lower the latter, and also move the carriage on the cable, the gripping-jaws pivoted directly on said carriage, the toggle levers connecting the ends of the jaws, a screw-collar secured to the connected ends of the toggle-levers,the screw-shaft passing into the screw-col lar, the grip-wheel on the screw-shaft, and means for operating the wheel, substantially as described.

11. The combination, with the cable or track way, the carriage thereon, hoisting mechanism connected with the carriage, the fall-rope, and the endless rope or cable, substantially as described. a

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

MILO W. LOGKE.

WVitnesses:

Gr. S; GRUBB, THEO. F. CRAWFORD.

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