US715991A - Derrick swinging and controlling device. - Google Patents

Description

No. 715,99I. V P'atentd necLfl fi, 1902-.

. H. N. GOVE'LL & c. A. BAEC-HTOLD.

DERRICK SWINGING AND CONTROLLING DEVICE.

' (Application filed my. 23, 1900. (No Model.) 3 Sheets-Sheet l.

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mi. 715,99l.

I H. N. CUVELL &.- C. A. BAECHTOLD.

DEBRIBK SWINGI NG AND CONTROLLING DEVICE. (Ap pfluhon and am. as. 1000.)

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Patented Dec. I6, 1902.

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H. N. COVELLYGL C. A. BAEGHTOLD. DERRICK SWINGING AND CONTROLLING DEVICE. (Apphcstlon filed In 28, 1900 (No Model.)

6 yrlwapm UNTTE STATES OF NEW YORK.

To all whom it may concern.- Be it known that We, HARRY N. COVELL, of he city of New York, borough of Brooklyn, I n the county of Kings and State of New York, .-and CHARLES A. BAECHTOLD, of Westfield, 1n the county of Union and State of New Jer- ;sey, citizens of the United States, have invented a new and Improved Derrick Swingng and Controlling Device, of which the folowing is a full, clear, and exact description. Our invention relates to an improvement in evices for swinging and controlling derricks esigned to be built either as a part of an 1 rdinary hoisting-engine or as a separate attachment to be applied to any of the ordinary oisting-engines. f, The particular purpose of the device is to filandle two lines or the two ends of one line by two separate drums, so as to control the winging of the derrick-boom either by means f a bull-wheel or by attaching the lines diectly to the boom. Another purpose, in adition to this, is to furnish a drum which may be used for any purpose desired, but which is herein described as used for tipping a skip or bucket which is hoisted by the derrick. Our invention comprises the novel features hich are hereinafter described, and particu arly pointed out in the claims. Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indiate corresponding parts in all the figures.

Figure 1 is a plan view of our device, showng its manner of connection with a hoistingngine, but no other parts of the hoisting- ,engine. Fig. 2 is a longitudinal section through one of the drums and its friction driving device. Fig. 3 is a partial side eleation of one of the cam devices used for con- (trolling one of the drums. Fig. 4. is an end elevation of the mechanism shown in Fig. 1

ith the driving-gears omitted to avoid hidg other parts. Fig. 5 is a plan of a barge, howing our device mounted thereon. Fig. a side elevation of our device shown in nnection with a derrick, and Fig. 7 is a PATENT OFFICE.

HARRY N. COVELL, OF BROOKLYN, NEW YORK, AND CHARLES A. BAECH- TOLD, OF WESTFIELD, NEW JERSEY, ASSIGNORS TO THE LIDGERWOOD MANUFACTURING COMPANY, OF NEWV YORK, N. Y., A CORPORATION DERRICK SWINGING AND CONTROLLING DEVICE.

SPECIFICATION forming part of Letters Patent No. 715,991, dated December 16, 1902. Application filed March 28, 1900. Serial No. 10,428. (No model.)

diagram showing in plan another way of connecting our device to a derrick.

In using derricks for loading and unloading material it is very desirable to have a power-controlled device for swinging the boom of a derrick to any point desired. The special object of our device is to accomplish this result, although it will be evident that it maybe used for many other purposes than this one special purpose. It is often desired, also, that a device of this sort shall be capable of attachment to a hoisting-engine of any particular make, and our device, as shown in Figs. 1 and 4, is designed to be thus attached to a hoisting-engine. It is evident, however, that a device essentially the same as that shown in these figures might be constructed as an integral part of the engine. Our device is herein shown as mounted upon a frame A, wtihin which suitable bearings are provided for a shaft B, this shaft being provided with a gear-wheel b, secured thereto and adapted to mesh with a pinion I), mounted upon a shaft B of the hoisting-engine. The manner of connecting the shaft 13 with the hoisting-engine may be anything found suitable, the method shown in Fig. 1 being given as a convenient method for most constructions. The shaft B of the hoisting-engine may be any convenient shaft, but would ordinarily be the shaft of the forward or lower drum. A portion A of the frame of the hoisting-engine is shown in Fig. 1. The shaft B is thus given a constant rotation in one direction. Upon this shaft are mounted two drums D and D to turn freely thereon. One of these drums and a portion of its friction device is shown in section in Fig. 2. Secured to the shaft 13 is a disk E, said disk being located between the two drums and carrying one-half of the friction-plates e, the other half being carried upon the drums. The friction herein shown is the ordinary plate friction. Any form of friction device which is found practicable may be substituted therefor. The drums D and D are each provided with a flange D adapted to receive a band-brake I, by means of which the drums may be secured against rotation. These band-brakes are connected with arms I, secured to a shaft 1 which is mounted in suitable bearings and extends across the direction of the hoisting-engine to a convenient point for operation by the attendant. To this shaft is secured a lever 1 which is provided with any suitable detent or catch device adapted to engage a segmentbar I, so that the brakes maybe held in tension when desired.

A cam device is shown as provided for each of the drums, by means of which they may be engaged with the friction device E, so as to turn with the shaft B. This cam device is such as is shown in our application for patent, Serial No. 718,385, filed May 26, 189$). This consists of two cam members F and G, both being mounted upon the shaft B at one end of the drum. The member F is held against rotation, the means herein used for that purpose consisting of the two lugs F and the pin F which is secured to the frame A. The member G is provided with an arm G, by means of which it may be oscillated upon the shaft. The two members are provided with face-cams f, adapted to engage each other, so that when the member G is turned in one direction it will engage the end of the drum and force it toward the friction device 6. Both members F and G are provided with thrust-bearing surfaces g, located outside of the cams f, by means of which a minimum amount of pressure may be secured and maintained at all times, even when the member G is turned backward so as to free the cams f. An adjustable thrust-bearing for the member F is provided by threading the shaft B and placing thereon a split nut H, the two halves of which are held together by means of bolts 71. These bolts may be loosened, so that the nut is readily turnable upon the shaft, in which condition the nut may be adjusted so as to obtain the desired minimum pressure upon the friction device E. hen this point is secured, the bolts it may be tightened so as to clamp the nut securely upon the shaft.

In Fig. i it will be noticed that the arms G of the friction device for the respective drums D and D extend upon opposite sides of the shaft, one upwardly and the other backwardly. These arms are connected by means of links J and J with arms K, secured to a transversely-enter]ding shaft K. By rocking this shaft in one direction one of the cam devices is operated to throw its drum toward its friction device, so as to cause that drum to be turned by the shaft B. The other friction device is so designed that movement of the shaft in this direction will separate the cam-surfacesfand its friction device will not be operated. The two friction devices are thus adjusted to operate oppositelythat is, when one is applied the other is freed.

Upon a continuation of the shaft B, herein shown as upon the other side of the gear-wheel b, is placed a third drum D which in its con struction and method of operation is substantially the same as that just described for the drums D and D. The friction device in this case is connected directly with the wheel I) I and the drum, the wheel 1) taking the place of the disk E in the other device. This friction device is located within the flange E, Y which is secured to the side of the wheel The cam device G, by which the friction is applied, is operated by means of a link L which connects at one end with the end of the arm G and at its other end with an arm L, which is secured to a sleeve L, herein shown as mounted upon the shaft 1 but not secured thereto. This sleeve is oscillated by means of a lever L which works upon a seg ment-bar L This lever is not visible in Fig. 4, as it is directly behind the lever I shown therein. 5 In Fig. 5 our device is shown as mounted in the frame of the hoisting-engine,being thus an integral part of the hoisting-engine. In} this same figure the manner of connecting the device with a derrick upon a scow is shown. The mast of the derrick is shown at M and the boom at M. The ropes P, leading from th two drums, are shown as passing first througLF snatch-blocks or over guide-pulleys P located at the bottom of the mast. They theri. pass through snatch-blocks P and P at opiposite sides of the boom, and thence to a connection with the outer end of the boom. In this figure one of the snatch-blocks, P, is shown as secured to one side of the scow, while the other, P is shown as secured to a dock or other vessel alongside which the scow is placed, so that the boom may be swung in, one direction a sufficient distance to enable it to take or deliver goods at a point outside v of the scow. Both of the snatch-blocks may, if desired, be secured to the scow or removed to a point outside of the scow, dependinglsr-ro In Fig. 6 the manner of using the third-:3 k. I

drum is illustrated, although by reason of the position of the parts this drum cannot be dif? ferentiated from the other drums of our auxiliary device.

In Fig. 6 a manner of utilizing our device i in connection with a hoisting-engine to dump a skip is shown. The third drum D (showngy-z. in Fig. 1) might be used for such purpose or? any other in which a third line is used. I 7125 this case a rope O is led from said drum over guide-pulleys 0, located at the foot and up: per end of the mast and on the outer end of, the boom. The rope O is then connected with one side of the skip 8. When it is desiretx .130 to dump this skip, this may be accomplished I by applying the friction driving device to the drum D so as to wind upon it the rope O. This will raise the rear end of the skip and dump its contents. When this has been done, the friction driving device may be freed from the drum D and the skip be allowedto return to its ordinary position. In Fig. 7 the manner of using ourdevice in connection with a bull-wheel placed on the bottom of the derrick is shown. The rope P leading from the two drums passes about guide-pulleysp and thence about the bullwheel N, which is secured to the bottom of the derrick-mast M. In this case a single rope is used, the two ends thereof being wound upon the two drums D and D. In this figure the gear-wheel b is shown as combined with the disk E, between the two drums D and D. The exact location of this gear-wheel is immaterial. With this device it is possible to effectively control the operation of the derrick, so as to deposit the load' at any point desired. In the construction shown in Figs. 1 and 2 the device is adapted to be attached to a hoisting-engine of any make.

The brakes which are applied to the drums D and D are both operated by the shaft 1 in a similar mannerthat is, both are applied or released at the same time. By using the brakes in this manner it is possible to apply resistance to the rope P, by which the derrick-boom is swung, so that it may be held against swinging even if the derrick is mounted upon a scow or other floating vessel which is rocked by the waves.

By the use of the cam device such as shown in Fig. 2 and described in our application before referred to a certain amount of friction is atall times applied to the drums D and D, this friction being in amount just suficient to hold the rope wound thereon taut, so that as soon as the brakes are applied the boom is prevented from swinging in either direction. If the rope had any slack, it would permit a limited amount of swing to the boom even after the brakes were applied. By maintaining a limited amount of friction upon the drums at all times. this is prevented.

Having thus fully described our invention, we claim as new and desire to secure by Letters Patent 1. An auxiliary attachment for hoistingengines comprising a frame, a shaft journaled in said frame, means for rotatively connecting said shaft with a shaft of the hoistingengine, two drums mounted loosely upon said shaft, friction driving devices adapted to connect the drums and shaft, a common controlling member for the friction driving devices of both drums adapted to operate them oppositely, brakes adapted to engage and hold each its respective drum, and a controlling member for said brakes and adapted to apply and release said brakes alike for both drums.

2. .An auxiliary attachment for hoistingengines,comprisiugaframehaving two drums loosely mounted therein, friction driving devices for said drums, rotative connections from said devices to a shaft of the hoistingengine, a friction controlling device adapted to apply a constant minimum pressure and a common device for increasing pressure oppositely connected with said friction controlling devices.

An auxiliary attachment for hoistingengines comprising a frame, a shaft journaled in said frame, means for rotatively connecting said shaft with a shaft of the hoistingengine, two drums mounted loosely upon said shaft, friction driving devices adapted to connect the drums and shaft, brakes adapted to engage and hold each its respective drum,

' two controlling-shafts extending parallel with the drum-shaft, and connections from one of said controlling-shafts to both brakes adapted to operate them similarly and connections from the other to both friction driving devices adapted to apply and release them oppositely for opposite drums.

4. A derrick-swinging device, comprising a shaft having a rotative power connection thereto, two drums loosely mounted upon said shaft, a disk secured to said shaft between the drums, said drums and disk being adapted to have frictional engagement, friction applying devices acting upon the drums to engage them with said disk, a controllingshaft extending substantially parallel with the drum-shaft, and connections from said controlling-shaft to the friction driving devices of both drums to operate them oppositely.

5. A derrick-swinging device, comprising a shaft having a rotative power connection thereto, two drums loosely mounted upon said shaft, a disk secured to said shaft between the drums, said drums and disk being adapted to have frictional engagement, friction applying devices acting upon the drums to engage them with said disk, drum-shifting means located at the end of the drums opposite said friction, and a common actuating mechanism for said shifting means adapted to engage the drums with and release them from their frictions oppositely.

6. In an auxiliary attachment for hoistingengines, the combination of a frame, a shaft journaled therein, means for rotatively connecting said shaft with the hoisting-engine,

two drums loosely mounted upon the shaft, a.

disk secured to the shaft between the drums and adapted to be frictionally connected with the drums, collars adjustably secured to the shaft outside of the drums, two cam members upon the shaft between each of said collars and the adjacent drum, means for holding one of said cam members against turning and controlling means connected with the other cam members to actuate them oppositely.

ICC

IIO

7. In a, hoisting device in combination, two names to this specification in the presence of coaxial drums, friction driving devices for two subscribing witnesses. both drums, means for applying and releasing said friction driving devices oppositely l 5 for opposite drums, and means for Inainmining aconstant minim um driving friction upon said drums.

In testimony whereof We have signed our Witnesses:

CHARLES G. MUNIER, JAMES E. DALTON.

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