US901318A - Carrier. - Google Patents

Description

' L. G. BROWNING.

CARRIER.

APPLICATION IILED MAR-17, 190g. 901,318. Patented Oct. 20, 1908.

' N w w Q Q N N w I nmntoz zewivjl dcfimwniij wihwouo I LEWIS CLYDE BROWNING, OF LAWRENCE, KANSAS.

CARRIER.

Specification of Letters Patent.

Patented Oct. 20, 1908.

Application filed March 17 1908. Serial No. 421,727.

To all whom it may concern:

Be it known that I, LEWIS CLYDE BROWN- ING, a citizen of the United States, residing at Lawrence, in the county of Douglas and State of Kansas, have invented new and useful Improvements in Carriers, of which the following is a specification.

This invention relates to carriers adapted for use in hoisting materials, the object of the invention being to provide simple, reliable and effective carrier adapted to be supported by a single cable and adapted to be operated by a single operating cable, the carrier embodying mechanism whereby the hoist block thereof may be locked and tripped under the control of the operating cable and by means of which the frame of the carrier may be locked and released at a predetermined point in the travel of the carrieras a whole under the supporting cable.

Vith the above and other objects in view, the nature of which will more fully appear as the description proceeds, the invention consists in the novel construction, combination and arrangement of parts as herein fully described, illustrated and claimed.

In the accompanying drawings :Figure l is a vertical longitudinal section through a carrier embodying the present invention, showing the hoisting block in its elevated position, showing the carrier locked to the adjustable stop and catch block. Fig. 2 is an end view of the carrier. Fig. 3 is a vertical cross section through the stop and catch block.

The frame of the carrier, in the preferred embodiment of the invention, consists of a pair of oppositely arranged plates 1 and 2 between the upper portions of which are an ranged supporting pulleys 3 and 4 which travel upon the main supporting cable 5, which may be supported in any convenient manner. Below the plane of the main sup porting cable 5, guiding sheaves 6 and 7 are journaled between the frame plates and around said guiding sheaves 6 and 7 passes the operating cable 8, a single operating cable being used.

Between the guiding sheaves 6 and 7 the operating cable passes along and around a pulley wheel 9 on a hoist block 10 which may be provided with any suitable means for supporting a hoist bucket or dredging scoop, the latter not being shown. To one end of the operating cable 8 there is c0nnected a flexible trip and catch 11 which is shown in the form of a chain comprising a plurality of links one of the end links being connected at 12 at the hoist block 10 while the other terminal length forms a catch link, being provided with a shoulder 13 adapted for engagement with a latch hook 14 at one end of a latch 15 which is fulcrumed intermediate its ends between the frame plates 1 and 2, as shown in Fig.1. The link 16 next to the catch link is provided with a cam shoulder 17 which is adapted to strike against a corresponding shoulder on the latch hook 14, operating to move the latch hook out of engagement with the shoulder of the catch link in a manner readily understood by reference to Fig. 1, wherein it will be noted that as the trip link moves, upward, it strikes against the latch hook 14, thereby moving said hook out of engagement with the shoulder of the catch link and rocking the latchon its fulcrum.

At the opposite end the latch 15 is provided with a latch finger 18 adapted to engage a catch shoulder 19 carried by a combined stop and catch block 20 adapted to be fastened to the main supporting cable 5 at any desired point in the length thereof. The catch block 20 is shown as comprising a main body portion indicated by the numeral 20 and a series of straps 21 which pass around the body and are recurved at the top thereof to form Ushaped extensions 22. Within each of said U-shaped extensions is a movable clamping jaw 23 shown in the form of a fiat plate the same being adapted to be moved into and out of clamping engagement with the main supporting cable 5 by means of a clamping screw 24, the latter acting to force the clamping aw against the cable and clamping cable between said clamping jaw and the body of the catch block, as clearly shown in Fig. 3. The fulcrum pin 25 of the latch 15 has its opposite ends extended through slots 26 in the frame plates 1 and 2 and mounted in openings in the lower ends are a pair of hangers 27 the shanks of which are threaded as shown at 28 and extended through supporting brackets 29 at opposite sides of the frame, said threaded shanks being adjustable up and down by means of nuts 30, whereby the fulcrum of the latch may be raised and loW- ered to properly adjust the shoulders at the opposite ends of the latch relatively to the catch shoulder 19 of the catch block and the shoulder 13 of the catch link above described. V

In connection with the latch 15, I also employ a tension device for insuring the engagement of said latch with the parts with which each cooperates, said tension device comprising a rod 31 one end of which has a jointed connection with the latch, the other end passing through a guide 82 carried by v the frame of the device. The rod 31 is provided with a stop shoulder 33 while between said stop shoulder and the guide 32 there is interposed a spring 34: coiled around the rod 31. It will thus be seen that the tension of the spring 3% is utilized to move the latch into engagement with the parts with which it cooperates as shown in Fig. 1.

In order to lubricate the bearings on the several pulleys and sheave an oil cup 35 may be arranged to the end of the shaft of each of said pulleys and sheaves, said oil cup having an outlet pipe 36 which leads to the journal bearing of the respective pulley or sheave as indicated in Figs. 1 and 2.

In Fig. 1 the carrier is shown as locked to the catch block 20 while the hoist block 10 is also held locked in its elevated position. by the latch 15. It will be apparent that by pulling on the operating cable 8, the trip link 16 will be turned into engagement with the latch 15 thus rocking the latch out of engagement with the catch shoulder 19. This releases the carrier from the catch block and enables said carrier to be drawn to the point of discharge. As soon as the latch finger 18 moves out of engagement with the catch shoulder 19, the latch hook 14 moves back into engagement with the shoulder 13 of the catch link and thus preventing the downward movement of the hoist block 10. \Vhen the carrier is returned to the point where it engages the catch block again, as soon as the latch finger strikes against the catch shoulder 19, the catch link is released, allowing the hoist block 10 to descend and at the same time the latch finger l8 interlocks with the catch shoulder 19, thus holding the carrier as a whole to the catch block during the lowering and hoisting of the hoist block 10.

It will be seen that the entire mechanism is controlled by a single operating cable.

I claim l 1. The combination with a supporting cable, of a catch thereon, and a carrier com prising a frame, supporting wheels engaging said cable, a hoist block, an operating cable for said block, guiding sheaves on the carrier frame over which the operating cable runs, a latch on the carrier adapted to engage said catch, and a flexible trip and catch. connected to the end of the operating cable and cooperating with the latch.

2. The combination with a supporting cable, of a catch block, means for fastening the block to the cable, a catch shoulder on said block, and a carrier comprising a frame, supporting wheels engaging said cable, a hoist block, an operating cable for said block, guiding sheaves on the carrier frame over which the operating cable runs, a latch on the carrier adapted to engage the shoulder on the catch block, means for adjusting the fulcrum of the latch, and means controlled by the operating cable operating to trip the latch.

3. The combination with a supporting cable, of a catch block, means for fastening the block to the cable, a catch shoulder on said block, and a carrier comprising a frame, supporting wheels engaging the said cable, a hoist block, an operating cable for said block, guiding sheaves on the carrier frame over which the operating cable runs, a latch on the carrier adapted to engage the shoulder on the catch block, adjustable hangers in which the latch is fulcrumed, and means controlled by the operating cable operating to trip the latch.

41-. The combination with a supporting cable, of a catch block, means for fastening the block to the cable, a catch shoulder on said block, and a carrier comprising a frame, supporting wheels engaged by said cable, a hoist block, an operating cable for said block, guiding sheaves on the carrier frame over which the operating cable runs, a latch on the carrier adapted to engage the shoulder of the catch block, and a flexible trip and catch connected to one end of the operating cable and cooperating with the latch.

In testimony whereof I afiiX my signature in presence of two witnesses.

LEWIS CLYDE BROXVNING.

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