US308621A - Hat gabbier and elevator - Google Patents

Description

(No Model.) 7 I 3 Sheets-Sheet 1.

E. D. MEAD.

HAY CARRIER AND ELEVATOR.

Patented Dec. 2

N. PETERS Plwwulho ra mr. Washington. n c

(No Model.) 7 3 SheetsSheet- 2.

' E. D. MEAD.

HAY CARRIER AND ELEVATOR. No. 308,621. Patented Dec. 2', 1884.

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E. D. MEAD.

HAY CARRIER AND ELEVATOR.

Patented Dec. 2, 1884.

I T/VZZYLQSSQS. Z2@Q1 Ina/anionll'mrnn STATES PATENT Orrion.

EDWIN D. MEAD, OF SHORTSVILLE, NEW YORK.

HAY CARRIER 'AND ELEVATOR.

TJPECIFICATIQN forming part of Letters Patent No. 308,621, dated December 2, 1884.

Application filed September 3, 1884. (No model.)

My invention relates to hay or grain ele vators, carriers, and unloaders, and more particularly to that class in which slings are employed instead of hay forks or grapples, the invention being designed as an improvement upon that for which Letters Patent of the United States were granted to G. Van Sickle, bearing date January 14, '187 9, and numbered 211,358.

The improvements consist in various novel features and details, hereinafter more fully set forth and claimed, but, primarily, in providing the shir-pulley block with a head or enlargement to enter the car, which is in turn furnished with automatic gates or catches to retain said head when lifted into the car; in so constructing the Shir-pulley that the lifting rope shall be automatically clamped therein when the device is hung in the car loaded, but set free when the load is discharged, and so also that the rope and sling may be drawn up through said block free from friction or hinderance to withdraw the sling from beneath the load; and in a novel construction of the carrying wheels or rollers of the car, whereby they may be readily adapted to either a single or double rail track.\

Other features will be referred to and explained further on. I

In the accompanying drawings, Figure 1 is a perspective view of my improved apparatus; Fig. 2, a longitudinal vertical section of the same; Fig. 3, a transverse vertical section; Fig. 4., a detail view of the trip or latch mechanism, and Figs. 5 and 6 detail views showing the construction and arrangement of the carrying wheels or rollers.

Prior to this invention hay or grain elevators, carriers, and unloaders employing slings instead of forks or grapples have in all cases been so constructed and arranged that the lifting-rope was clamped orheld in the car, the shinpulley block being supported solely by the rope or sling, and free to run down to the lower end of the sling when the latter was released to discharge the load.

In order to draw the sling through the car,

to raise the pulley-block to clear cross-beams and timbers in the barn or building in running back to the loading-point, it has been necessary to overcome the pressure and friction of the rope-clamp in the car, with the weight of the sling, shirpu1ley block, and car acting to hold it down upon the lifting-rope, and this has caused very rapid wear of the rope. By my construction the rope is relieved entirely of the weight of the shir-pulley block and car as soon as the block islifted to the car, and it is held by the car until the latter returns to the loading-point. The sling also moves freely through the shir-pulley block and through the car until the metal rings or loops at its ends reach the pulleyblock, thus being removed from under the load and raised above the crosstimbers, though, being no longer incumbered by the pulley-block, they will move readily over the bearing if not raised. Hitherto the car or carrier has been provided with either separate or double rollers to run on a double-rail track, or with grooved rollers to run on a single rail; but so far as I am aware no one has ever before provided rollers capable of ready adaptation to both kinds of track.

Referring again to the drawings, Iwill now explain the construction and arrangement of parts by which I am enabled to overcome the difficulties hitherto experienced and to improve the action of the apparatus. I

A indicates the body or frame of the car, which I preferably cast in two parts, 13 and O, substantial duplicates of each other, and

which are bolted together, as indicated in Fig.

1. Upwardly-projecting arms a are formed upon each side plate or casting, B and C, to carry the axles of rollers D, by which the car is carried, and which travel upon a rail or rails, as is well understood. These rollers I now construct in three parts, I), c, and cl, as shown in Fig. 5, the parts I) and (Z having straight faces or being cylindrical in form, while the part c is in the form of a common grooved pulley, being circumferentially grooved or hollowed to fit upon the common single rail,

rope, or rod. WVhen the car is to be used upon I such single rail, the three parts are combined and mounted upon a common bolt or axle, as in Fig. 5, the track being supported at the ends only and strained tight to keep it from sagging, and the middle part, 0, running upon said rail or track, as shown. Vhen, however, the car is to be used upon a double-rail track, the rails secured to opposite faces of a beam or stringer suspended by rods from above, as in Fig. 6, I remove the throughbolts, take out the middle part, c, from each roller, and attach the parts I) (Z to the arms a, each by a short shoulder-bolt, E, placing the heads of the bolts at the inner side of the rollers b d, passing their shanks or stems outward and applying nuts to their outer ends, as shown in Fig. 6. This arrangement not only affords ample room between the rollers for the beam or support, but it also prevents the bolt E from working out, even if the nuts become loose or work off, theheads of the bolts in such case coming against the supporting-beam, as indicated. The change requires but little time and obviates the necessity of always providing a special kind of track. The side plates, 13 O, are each formed with holes or openings near their lower corners, to receive the journals of dogs or catches F, which'normally rest against inclined faces or stops f, formed upon the inner faces of the plates, being pressed and held to that position by springs g, each bearing at one end against the frame and at the other end against the dog or catch to which it belongs. The dogs when in this position extend upward from their journals and inward toward the middle of the car at an angle of about sixty degrees, their upper edges being then separated a dis tance slightly greater than the diameter of the neck of the shir-pulley block G, which neck passes and remains between them when the block is raised to the car, as presently explained. The dogs or catches F are free to rise and move back until they assume a vertical or substantially vertical position, to permit the enlarged head i of the pulley-block G to enter and pass between and above them, whereupon they again swinginward, and, engaging under the shoulder of the head, lock the block securely within the car. The'lower part of the car is spread or widened from side to side and fashioned into circular form, as indicated in Fig. 1, and each plate is formed with a vertical groove or slot, j, to receive and guide the arms L of a vertically-sliding block or casting, H, formed with laterally-projecting ears Z, to bear upon the upper faces or edges of the side plates, B O. and thus to limit the descent of the block. The upper end of said block is furtherprovided with an arm, m,which is formed with a semicircular notch, n, in its upper side to receive the curved or rounded face 0, forming the upper wall or side of an eye, 1), in a pendulous trip-bar, I, which is thus hung upon and sustained by the arm at, upon which it J is placed.

is free to swing inward and outward toward and away from the body of the car. The tripbar I is of inverted-T form, the lateral arms being each formed with an incline, q, upon which rest the arms 1' of the dogs or catches F when the latter are in their normal position, the arms being formed with an offset, 8, to rest upon the inclines q, as shown in Figs. 3 and 4.. The lower end of the trip-bar I is provided with a slot, t, and is guided in its movements by a stud, a, formed upon the side plate 13 of the ear, and projecting through the slot, the trip-bar having both a vertical movement and a movement toward and from the side of the car, being pressed outward by a spring, 12, to hold its shoulders q under the H offsets s of the arms r of the dogs or catches F. WVhen the trip-bar is elevated, the inclines q force back the arms r and elevate and separate the inner edges of the dogs F, so that the head of the shir-pulley block, if contained within the car, will be released, and permitted to descend. \Vhen the trip-bar I reaches a certain height, the arms 9* ride out of engagement with the inclines q, and the dogs or catches F are returned to their first position by the springs g. Thelower end of the trip-bar I is beveled, so that it may readily be crowded back by the arms 1' as it descends until the inclines q pass beneath the offsets s of the arms 9', when the spring a forces the lower end ontward, carrying the inclines beneath said offsets. The dogs or catches F are required to be moved back to release the shir-pulley block only when the car is at the point of loading, and in order to automatically release the block at said point the track or its support is furnished at such point with a stopblock, J, said block having square ends or shoulders. The side plates, B C, are each cast with projecting studs, 10, on their inner faces, which form pivots for a pair of levers, K, which perform the double office of operating the trip-bar I and of locking the car at the loading-point until the load is lifted and the shir-pulley block is hung in the car. These levers are each provided at their outer ends with a hook, 00, having its upper face beveled, as shown in Fig. 1, so that as said face comes into contact with the square shoulder or end of the stopblock J the outer end of the lever is depressed and the inner end is correspondingly raised, and as the levers project in opposite directions one or the other will be actuated, whichever way the car is moving when the stop-block is reached. Both levers K have their inner ends inserted into a recess or socket in the head of the sliding block H, and hence as said inner ends are elevated the block 11 and trip-bar I are also lifted, thereby causing the dogs or catches F to be separated and thrown back, and releasing the head of the shir-pulley block G, which thereupon falls to the floor of the barn, or to the wagon or other loading-point over which the stop-block The car A is furnished with two pulleys, M. one at each side of the center, over one of which the lifting-rope N is can ried from the shir-pu'lley block over suitable guide-pulleys down to the team, two pulleys being furnished, in order that the rope may be carried in either direction at will without turning the car around.

From the foregoing it will be seen that when the load is applied and the team started up the shir-pulley block G, with its lead, will be lifted to the car, the head 'of the .pulleyblock will force back the dogs and pass between them, the dogs at once swinging inward beneath the head of the block and looking it in the car, while the head, continuing to move upward, will strike the lower end of block H and raise it, thereby lifting the inner. end of the levers K, depressing their outer ends,and disengaging, their hooked ends from the stop-block, J, whereupon the car will be ,drawn along the track by the lifting or draft 2o rope runningto the team. When the discharg- 3o flange or head, 2'.

ing-point is reached, the shir-pulley block is held fast in the car, but one end of the sling is released so that the load is disengaged, the sling being drawn up through ,the block, if desired, to withdraw it from under the load.

Referring now to Figs. 1 and 2,the construction of the shir-pulley block will be explained; G indicates the block as a whole, the body of which is of tubular form, with an annular About midway of its length the body is provided with ears 1, between which is pivoted a latch, O, to engage and hold a tongue, P, pivoted in the outer end of a downwardly-inclined nose or hook, 2, upon which the eyes or rings Q of the sling R are hung when the load is made ready for elevation. The hook or nose z is inclined sufiieiently to cause the eyes or rings Q to slip off the same, but still serves to sustain the weight to of the load, instead of throwing the same wholly upon the pivoted tongue I, as heretofore, said tongue now serving simply to prevent the rings from slipping off before the proper time.

S indicates a triform frame pivoted in the lower end of the block G, one arm extending up within said body, and adapted to press against the lifting-rope, and to hold the same load is hung from the block.

between it and the body of the block when the The other arms are furnished with pulleys 'I and U, between which the lifting-rope passes, and by which it is guided. The draft-rope is furnished'atits lower end with a hook which engages with an eye of the sling L, as heretofore, so that the weight of the load put upon the sling is transmitted directly to the lifting-rope. As said rope passes over the pulley T, at one side of the pivot of frame S, it throws the upper arm,

S, thereof inward against the lifting-rope with a force directly proportionate to the weight of the load, preventing the rope from running back through the block if slackened. Wheu, however, the load is discharged, only the weight of the sling acts upon frame S, and consequently the arm S exerts no appreciable friction or pressure upon the rope, or upon the sling, which is then drawn up through the block to clear the cross-timbers of the roof. The latch O is provided with an eye or loop, Q, through which a hand rope or cord, V, passes, going thence into and up through the tubular body of block G. upward through the car A, over the then idle pulley M therein, and along-the line of the track in a direction opposite to that of the draft-rope, its end being made fast to the rail or other fixed object. Under this construction and arrangement a downward pull upon the hand-ropeVwill cause the outer end of the latch O to be depressed and theinner end to be elevated against the pressure of a spring, W, until the tongue P is released, and the eyes or rings Q of the sling thus allowedto slip off the nose or hook z of the block G, the latch and tongue thus released when the load. is at the desired point of delivery, the rope or cord V running freely through the loop or eye of the latch as the car travels to said point; and after the load is discharged the car is drawn back to theloadingpoint by the same hand-rope, which again runs freely through the car, block, and latch, giving a double purchase to draw the car back. A quick pull upon the hand-rope will pull down the latch and release the tongue, as mentioned. The construction thus set forth avoids all wear and abrasion of the rope, relieves it of the weight of the shir-pulley block, prevents the latter from running down upon the sling when the load is discharged, and generally simplifies and improves the ac tion of the apparatus.

I. desire to state here that I believe myself to be the first either to clamp the rope in the shir-pulley block or to lock or secure said block to the ear, and these features I claim, broadly, whether the clamp or the locking devices be made in the precise form here described and shown, or in any substantiallyequivalent'form, it being obvious that both may be considerably modified without departing from the spirit of my invention.

I am aware that a frame or platform has been provided with a head or enlargement to enter the carriage, and to be held therein by dogs or catches.

I am also aware that a hoisting-rope bearing at its lower end a fork or grappling device has been provided with a block or en largement for a similar purpose. I therefore disclaim such construction. I am not aware, however, that any one has heretofore con structed a pulley-block with such a head or enlargement whereby said pulley-block might be held locked to the car or carrier while still permitting the hoisting-rope to be drawn up through it, or after the discharge of the load to be drawn downward through said block, the latter remaining thus suspended from the car or carriage.

I am aware that sheaves for pulley-blocks have been made with independent rotating cheeks or side plates but I am not aware that such checks have ever been designed or IIO adapted for use independent of the central part, or that a hay-carrier has ever been provided with such separate rollers or pulleys.

Having thus described my invention, what I claim is 1. In a hay and grain loader and unloader, a carrier-frame, A, provided with rollersD, consisting of separable parts I), c, and d, and axles E, whereby the car is adapted to be ru on single or double tracks at will.

2. In combination with frame or body of a car or carrier substantially such as shown, pivoted levers K,provided with hooks at their outer ends, sliding block H, dogs or catches F, provided with operating-arms, and tripbar I, carried by block H, and adapted to engage with and move the arms of the dogs or catches, substantially as described and shown.

3. In combination with frame B O, and with levers K, pivoted therein, block H, provided with a laterally-proj ecting arm having a notch in its upper side, trip bar I, hung upon said arm and provided with inclines q, dogs or catches F, pivoted in the frame and provided with arms 1', and a spring, 2), adapted and arranged to press the trip-bar outward and hold it in engagement with the arms 0, as set forth.

4. In combination with a car-frame having stop-shoulders f, pivoted dogs F, inclining up and inward toward the middle, but free to be forced apart, substantially as and for the purpose explained.

5. In combination with car A, having dogs or catches F, shir-pulley block G, having a head or enlargement, z, to rest upon said dogs, and thereby support the block, and the draftrope N, passing through said block G and connected with the sling or load-supporting device below the block, substantially as and for the purpose set forth.

6. The herein-described shir-pulley block for hay and grain unloaders, carriers, &c., consisting of body G, having nose or hook z, pivoted tongue P, and latch O, and frame S,

pivoted in the body G, and constructed and ararranged, substantially as shown, to lock said tongue, and provided with an eye or loop, and a hand-rope,V, passing through the eye of the latch and through the pulley-block and car to a fixed support, whereby the rope is adapted to run freely through said parts when slack, but is caused to actuate the latch and release the tongue when pulled taut.

9. In combination with a car or carrier provided with looking dogs or catches, a shirpulley block provided with a flange or projection to be engaged by said locking device, and with a latch, a lifting-rope, and a sling attached at one end to the lifting-rope and held at the other end by the latch, substantially as described and shown.

10. A shir-pulley block for carriers, substantially such as herein described, provided with a clamp to bind the lifting-rope within the block.

EDWVIN D. MEAD.

I \Vitnesses:

A GEO. H. PRESTON, OLIVER S. TITUS.

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