US1034012A - Winding mechanism. - Google Patents

Description

P. HAYES.

WINDING MEGHANISM.

` APPLICATION FILED FEBJS, 1912. 1,084,01 2. Patented July 30, 1912.

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F. HAYES.

WINDING MBOHANISM.

i I APPLIOATION FILED rmh, 1612. 1,034,01 2. Patented July 3o, 1912.

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COLUMBIA CD., WASHINGNN, D

F. HAYES. WINDING MECHANISM.

APPLIOATION FILED 1113.6, 1912.

1,034,012); Patented July 30,1912.

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I'. HAYES. WINDING MBGHANISM.

APPLICATION FILED I'EB.6, 1912-. 1 ,034,01 2. Patented July so, 1912.

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UNITED sTATEs PATENT oFEioE. .A

FRANK HAYES, OF Sl'PERIOR, WISCONSIN.

WINDING MECHANISM. i

Application led February 6, 1912. SerallNo. 675,788.

adjustably mounted on the drum for the purpose of taking up the slack in the cable, most usually caused by stretching when under heavy tension to which cables are more or less subjected when in use.

The usual method of securing a cable end l to the drum is by attaching it to a staple or U-bolt fastened to the drum, or to liXed clamps on t-he drum. To take up the slack with such attachments in a cable of from one and one-half to two inches in diameter under the above conditions is a long,jdiflicult and troublesome operation, because the cables are heavy and stiff and cannot be handled readily. When the staple or U-bolt is employed as a fastening means, the cable must be disengaged therefrom, drawn through the staple or U-bolt for the required distance and then re-fastened. In the case of fixed clamps said clamps have to be loosened, the cable pulled therethrough and the clamps tightened, an operation, while appearing simple and easy of accomplishment, is, on the contrary, slow and difficult.

A further object of the invention relates to a brake to be applied tothe drum and operated at a distance therefrom for regulating the speed of rotation of said drum, and when necessary, to entirely check its ro tation.

With these and other objects in view the invention consists of the novel construction, combination and arrangement of parts hereinafter described in detail,` and pointed out in the claims, reference being had to the accompanying drawings, in which, u

Figure 1 is a side elevation of a hoisting machine, including the winding drum, a motor for driving the-same, and intermediate gearing connecting the motor tothe drum. Fig. 2 is an end elevation, enlarged, ofone side of the drum, showing the adjustable Specification of ALetters Patent.

Patented July eo, 1912.V

l clamp forthev cable. Fig. 3 is a plan Viewy rof the same, one-half being shown in section on the line 3-3 of Fig. 2, Fig. 4 Vis a `side elevation of the cable clamps removed g from the-drum, Fig. 5 is an edge view of the Qsame, Fig. 6 is an elevation of one of the v jacks for moving the adjustable cable `clamps. Fig. 7 is an elevation of the end of the drum opposite that shown in Fig. 2, :with the brake band applied. Fig. 8 is an elevation of the brake operating mechanism, lFig. 9 is a view of the lower part of the brake operating mechanism, at a right angle `to Fig. 8.

In the drawings, 15 indicates the bed` frame of a hoisting machine, on which is jmounted a power generator 16, at one end and a winding drum 17 atthe opposite` end, lthe drum being keyed on a transverse shaft l18, rotatably mounted in bearings `19 sejcurely bolted to the bedframe.

Any type of power generator or motor 516 may be employed for rotating the wind- {ing drum, such as a 4steam engine, an eX- plosion engine or an electric motor. In the present instance a steam engine isemployed to rotatea crank shaft 20 rotatable in suitable bearings on thevframe, and carrying at one end outside the bed frame a pinion `21 `meshing with a gear wheel 22, fixed on, a cross-shaft 23, carried in bearings 24 on jtlie bed frame. A pinion 25 keyed on the shaft 23engages a gear ring 26 attached to or forming a part of the drum 17. Thedrum 17, which may be of any length required, has, preferably, a spiral groove `27 formed in its periphery, in which tolay the cable as it is wound up. At one side ofi-the drum'is an outstanding flange 28, to which is bolted the gear ring 26, when the latter ,is made separate from the drum, and which carries said gear ring when it is cast integral with the drum. The opposite end of the drum 17 has integrally formed therewith a wheel 29 of greater diameter than said drum and about equal in diameter toV the gear ring- 26. The peripheral face of the wheel 29 is smooth, and serves as the bearing surface `for the brake band to be de! scribed later. j

Extending' transversely through the `center of the drum 17 is ahub 30, integrally4k connected to the drum at one end of the same by a web or spider 31, continuous with the'inner face of the'brake wheel 29, and by'V :theplate or spider 32 near the opposite end 40 on the outer ends of said T-bolts.

of the drum, but seated back's'uiiciently far from its outer end to form a chamber 33 to receive a clamping member 34.

The clamping member 34 comprises a circular plate 35 provided with an outwardly projecting` collar36, rotatably mounted on the hub 30. The inner :tace of the plate 35` `is smooth and bears against the outer face y creased. On one side of the plate 35 of the clampvided with a semi-circular longitudinal l ing member are 'a plurality of clamps 42 formed in the present instance of a grooved project-ion extending outwardly from the facev of the plate near its periphery, and progroove 43 therein, in which the end of the cable 'A is laid, and fastened against ,withdrawal therefrom by means of clip members 44, extending transversely of the cable, and

- clamped firmly against the cable by nuts 45 threaded on studs projecting from the clamps 42, or by bolts threaded into said clamps.

The circular plate of the clamping member lies within the chamber 33 against les the spider 32 which forms the bottom of said chamber as previously described, and in such position relative to the spiral groove 27 on the periphery of the drum that the semicircular groove 43 and the clamps 42 will lie in the same plane as the first turn of said spiral or peripheral groove 27. At a suitable point in the first turn an opening 46 is formed through the drum for the passage of the cable A to the clamps, the bottom of said spiral groove being inclined, as at 47, from a point back of the opening 46 to said opening where it terminates in a thin edge so that the cable passing through said opening to the clamps will not be given ay sharp bend as it enters said opening.

When it is desired to take up any slack in the cable the nuts 40 are removed from the T-bolts and the latter withdrawn from the slots 38 and 39, and the clamping member rotated or turned to the left to take up such slack. This movement draws the cable through the opening 46, to wind about a curved'shelf 48, projecting outwardly from j the plate35 and having a groove in its upper surface to receive the cable. The full limit of rotation of the clamping member is approximately one half a rotation, by means of which several feet of the cable may be f @j taken up. This eXtreme movement,l however, is not always necessary, soto provide for va shorter movement the elongated radial slots 38 are made in the spider 32. 1f, after the T-bolts have been removed, and the amount of slack in the cable to be taken up is not suliicient to permit the clamping member to be turned a half revolution, it is rotated as far as possible, after which the T-bolts are inserted through such of the slots 38 as register with the slots 39 in the turning plate 35 and through said slots 39 and fastened by the nuts 40.

For the purpose of turning the clamping member about the hub 30 of the drum jack gscrews 49, preferably two in number, are provided. These jack screws each comprise a head 50 from opposite sides of which and in a straight line extend threaded stems 51 `and 51a respectively, one of which has a right hand thread and the other a left hand thread cut thereon. are holes 52 at right angles to each other for the insertion of a tool by means of which the screw may be rotated. These screws are litted with nuts, one of which, 53, is on the Through the head 50 screw 51 and the other, 54, on the screw 51u.

The nut 53 of each jack is pivoted in a bearing 55 integral with the plate.35 of the .clamping member, while the other nut 54 -:has its outer end beveled as at 56 to engage with teeth 57, integral with the drum and lying within the chamber 33. Normally, the ,jacks are supported by pivots 58 extending through the bearings 55 and the jack screw vnuts 53 into the plate 35, while the other nuts engage with the bear on the teeth 57 within the drum. lVhen it is desired to t-urn 'the clamping member the T-head bolts 37 are removed as heretofore described, and the =screws of the jacks turned by means of any convenient tool inserted in the holes 52.

Force thus applied will slowly rotate the clamping member for the required distance if it be not great. Should, however, it be necessary to continue the rotation of the lclamping member beyond the limit of the clamping member from backward rotation due to the tension of the cable. This operavtion of the jacks, which is alternate, may be continued until all the slack has been taken up in the cable, after which the bolts 37 are returned to place and the nuts 40 secured thereon, thus holding the clamping member against rotation under the strain of the cable.

From the above description it will be clear that the adjustable clamping member is simple in its construction and adapted to perform its duty in relatively short time as compared with the present methods of taking up slack in a cable. The jacks for ope erating the clamping member, though small and consist of few parts, are very strong and are capable of exerting great power on the clamping member in a tangential direction, thus conserving all their power. The construction of the drum and the position of the clamping member with relation thereto is such that the cable end passing through an opening in the drum, extends in a straight line to the several clamps by means of which it is held, and continues in this direction throughout the entire movement of the clamping member. Another advantage to be noted is that when the cable is'once securely fastened on the clamping member there will be no necessity for loosening the clamps so long as the cable is in use, or for some. need it `be desired to place in a new cable on the drum.

For the purpose of regulating the speed of the drum when running loose and for stopping the same from rotation, a brake band is used, operated by certain mechanism arranged to be placed at a distance from the drum which, under certain conditions, is desirable. rlhis brake mechanism comprises a brake handmade into two parts, 60 and 6l, which surround the brake wheel 29 heretofore described. These bands are concentric with the brake wheel and spaced therefrom a short distance to receive a number of relatively short bearing blocks 62, bolted to the brake. band, and, when the brake is in operation, bear on the peripheral surface of the brake wheel. The bearing blocks 62 are preferably lnade of wood, but they may be made of other material suitable for the purpose. A bracket 63 is rigidly attached to the adjacent ends of the brake bands 60 and 61, which brackets are bolted to opposite sides of a spacing member 64, which is adapted to bear on the brake wheel when the brake is in operation. The brake band section 60 extends from the bracket 63 around the brake wheel for a suitable distance and then extends tangentially to a channel bar'65, extending across the bed frame 15, to which it is bolted. r)The brake band section 61 in turn extends from its bracket 63 around the opposite side of the 4brake wheel nearly to the channel bar 65 where it is attached to a pin 66 mounted in arms 67 of a tumbler 68, keyed on a transverse shaft 69, mounted in bearings in the base frame 50. 0n one end of the shaft 69 is keyed a lever 7 O, which, on being rocked, causes t-he arms of the tumbler 68 to rise and fall and thus expand or contract the brake band by which means it is loosened or tight.- ened on the brake wheel.

In the present form of the device the winding mechanism is intended for use on a dredging machine of that type where lthe winding drum and its motive power are mounted in the bottom of the dredging scow and the brake'mechanism carried to the upper deck where the person operating the brake may see the operation of the dredging mechanism, and thus know when to apply the brake and when to loosen the same. A simple device, which will now be described, connects the lever 7 O with a hand operating wheel placed on the deck of the scow. Rigidly bolted to the side of the base frame 15 at a suitable distance from the transverse shaft 69, is a bracket 71, formed with upper and lower outward projections 72 and 73, which form bearings for a rod 74 to slide vertically therein, said rod having its upper end screw threaded, and at a suitable distance below the thread, a transverse slot 75 formed therethrough to receive the free end of the lever 70. Seated on the upper end of the bracket 7 3 and adapted to rotate thereon is an elongated nut 7 6 threaded in ternally at lits lower end to engage the threads on the rod or bar 74. Above the threaded portion of the nut is a chamber 77 to receive the upper end of the bar 74e. The nut is preferably made cylindrical with a square head 7 8 provided with a transverse slot 79 to receive the T-head 8O of a vertical shaft 6l passing through a suitable standard 82, and provided on its upper end with a i hand wheel 63, by means of which said shaft is rotated. To prevent separation of the T- head 8O and the slotted head 79 of the nut a bolt 84 extends through the nut and the T-head as shown.

l/Vhen it is desired to operate the brake mechanism the hand wheel 83 is turned in the proper direction and thereby rotates the nut 7 6, which raises or lowers the threaded rod 74e, and thus operates the rock shaft 69 and the tumbler 68 thereon to apply or release the brake band. As thus constructed and arranged the brake mechanism is placed in convenient position for its operator to see and know when the brake is to be operated by the simple means shown, and without exertion of great force on his part` the brake may be applied with sufficient power to reduce the speed of the drum or wholly check its rotation. The parts are simple, strong and easily assembled and constitute a thoroughly practical and simple device.

It is to be understood that while the invention herein shown and described is the best form at present known to me, various changes and modifications may be made in the several parts without departing from the spirit of the invention, as, for instance, the clamps which hold the cable on the clamp member may be changed to suit circumstances; the Thead nuts by means of which the cable clamp member is rigidly attached to the drum may be dispensed with and any other means be employed for this purpose, which will enable the clamp member to be rotated about the axis of said drum; again, instead of forming a chamber in the side of the drum in which to place the cable clamp member the latter may be attached to the end of the drum.

I-Iaving thus fully described my invention, I claii 1. In mechanism of the class described, a winding drum, an adjustable cable clamp member mounted on said drum rotatable about its axis, and means for adjusting said clamp member with respect to the drum.

2. In mechanism of the class described, a winding drum, an adjustable cable clamp member on said drum and rotatable about its axis, means for rotating` said clamp member, and means for fastening the member to the drum.

3. In mechanism of the class described, a winding drum, an adjustable cable clamp member on said drum and rotatable about its axis, and means for rotating said clamp member in one direction and holding it against reverse rotation.

4. In mechanism of the class described, a winding drum, an adjustable cable clamp member on said drum and rotatable about its axis, means for intermittently rotating said cable clamp member, and means for rigidly connecting said cable clamp member to the drum.

5. In mechanism of the class described, a winding drum having a hub, a cable clamp member rotatably mounted on said hub, means for rotating said cable clamp member, and removable fasteningdevices between said drum and the clamp member.

6. In mechanism of the class described, a hollow winding drum having a hub and a t-ransverse plate connecting said hub and drum, a cable clamp member adapted to rotate on said hub and against said plate, means for rotating said cable clamp member, and removable connecting means for rigidly fastening said member to said plate in various positions of the member.

7 In mechanism of the class described, a hollow winding drum having a hub and a transverse plate connecting said hub and drum, a cable clamp member adapted to rotate on said hub and against said iplate, registrable openings being formed in the plate and the cable clamp member, means for rotating said clamp member, and means extending through said openings to rigidly fasten said member to said plate in various positions of the member.

S. In mechanism of the class described, a hollow winding drum having a hub and a transverse plate connect-ing said hub and drum, a cable clamp member adapted to rotate on said hub and against said plate, registrable slots being formed in the plate and the cable clamp member, headed bolts extending through said slots to rigidly fasten said member to said plate in various positions of the member, and means for rotating said member.

9. In mechanism of the class described, a hollow winding drum having a hub and a transverse plate connecting said hub and drum within one end of the druln to form an outwardly opening chamber, a cable clamp member within said chamber adapted to rotate on said hub and against said plate, a plurality of radial slots being formed in said plate and the cable clamp member adapted to register as the member is rotated, removable headed bolts extending through said registering slots for rigidly fastening the clamp member to said plate, and jacks for rotating the said member.

l0. In mechanism of the class described, a hollow winding drum having a hub and a transverse plate connecting said hub and drum within one end of the drum to form an outwardly opening chamber, a cable clamp member within said chamber adapted to rotate on said hub and against said plate, clamps on one face of the clamp member for holding the cable end which extends through a slot in the drum, a plurality of radial slots being formed in said plate, and a less number in the clamp member, said latter slots adapted to register with an equal number of slots in the plate as the member is turned, removable fastening means extending through said registering slots for rigidly fastening the cable clamp member to said plate, and jacks pivoted to said plate and adapted to act against said drum for rotating said member.

1l. In mechanism of the class described, a hollow winding drum having a hub and a transverse plate connecting said hub and drum, a cable clamp member adapted to rotate on said hub and against said plate, a plurality of clamps on said clamping member for holding the end of the cable, a plurality of lugs on said drum adjacent the cable clamp member, jacks pivotally mounted on said cable clamp member adapted to bear against said lugs and rotate said member, and means for rigidly fastening the clamp member to the drum.

12. In mechanism of the class described, a hollow winding drum having a hub and a transverse plate connecting said hub and drum within one end of the drum to form an outwardly opening chamber, a cable clamp member within said chamber adapted to rotate on said hub and against said plate, clamps on said clamp member for holding the end of the cable, a plurality of projecting lugs on the inner surface of said chaluber adjacent the clamp member, screw acls pivoted to the clamp member and bearing against said lugs by means of which said member is rotated, and means for rigidly securing the cable clamp member to the drum.

13. In mechanism of the class described, a cable clamp member comprising a plate adapted to be rotated, cable clamps on one side of said plate, and a plurality of slots formed in said plate through which pass fastening means for preventing the rotation of the cable clamp member.

14. In mechanism of the class described, a cable clamp member adapted to rotate and comprising a circular plate having a projection on one side in which a curved slot is formed to receive the end of the cable, clamps adapted to securely hold the cable in said slot, a shelf continuous With said projection to support the cable as said member is turned, bearings on said plate in which are pivotally carried members for turning the clamp member, and a plurality of short radial slots in the plate through Which pass means for fastening the plate against rotation.

15. In mechanism of the class described, a Winding drum, a cable clamp mechanism on said drum and adapted to rotate about its axis, clamps on said member for securely fastening the end of the cable, removable means for rigidly connecting the clamp member to the drum, and means for rotating said cable clamp member comprising a pair of screw jacks pivoted to said member and bearing against lugs projecting from the drum.

In testimony whereof I have hereunto set my hand in presence of tWo subscribing Witnesses. A

FRANK HAYns.

Witnesses R. WILLIAMSON, CHARLES GRAY.

Copies of this patent may be obtained for iivc cents each, by addressing the Commissioner of Patents, Washington, D. C.

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