US268943A - Dumping-platform - Google Patents

Description

(Ho Model.) 2 Sheets$heet 1.

JIT. SAVAGE a; J. LOVE.

DUMPING PLATFORM; I No. 268,943 Patented Dec. :12, 188Z..

2 Um. V O L & nu A V A S T, m

DUMPING PLATFORM.

Patented Dec 12.1882.

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UNITED STATES PATENT JOHN T. SAVAGE AND JOHN LOVE, OF ROCKFORD, ILLINOIS.

DUMPlNG-PLATFORM.

SPECIFICATION forming part of Letters Patent No. 268,943, dated December 12, 1882.

Application filed October 16, 1882. (No model.) I

To all whom it may concern Be it known that we, JOHN T. SAVAGE and JQHN LOVE. citizens of the United States, residing in the city of Rockford, in county of Winnebago and State of Illinois, have invent ed new and useful Improvementsin Dumping- Platforms, of which the following is a specification.

This invention relates to dumping-platforms employed mainly in connection with elevators for the purpose of unloading grain from vehicles employed in its transportation; and it consists mainly in mechanism employed in connection with a pivoted platform for changing it from a horizontal to an inclined position, or vice versa, to produce an efficient dumpingplatt'orm. The devices employed, which are represented in the accompanying drawings, their application and their operation, will be hereinafter more fully described.

In the accompanying drawings, Figure l is an isometrical representation of a dumpingplatform embodying our invention. Fig. 2 is a side elevation with portions broken away to show the construction of the parts in the pit. Fig. 3 is a transverse vertical section on dotted line 00.

In the figures, A represents the pit-walls of an ordinary weighing-scale, such as are to be found employed in connectionvwith elevators, in the hay-market, or other like situations, employed mainly for weighing loaded vehicles and stock. On the pit-walls is mounted a border-frame consisting of side and end timber beams, B, rectangular in section, having their corner ends suitably joined at right angles byframing or otherwise, producing a rectangular capping-frame to the pit-walls and border-frame to a scale-platform.

At (3 are represented lengthwise wood side beams of a scale-platform. These beams are rectangular in section, and are joined toward the end portions by transverse beams, D, having the upper end portions overlapping the side beams. I

At E are represented lengthwise joist or floor beams, having their end portions suitably joined in the transverse beams D at a suitable distance inside of the side beams, O, producing a scale-platform frame.

At a are represented floor-plank, which are fixed to the upper surface of the scaleplatform frame, leaving lengthwise side openings, 1), between the lengthwise side beams, O, and

also an end opening, 0.

At F are represented track-beams of suitable dimensions to freely enter the lengthwise trally supported in the side openings on suitable pivot-bolts, 01, passed transversely through the side beams and floor-joist of the platform and through the track-beams.

gear of bracket form, fixed to the under side from which they depend in a curve concentric with the pivotal center of the beam.

At It are represented bracket-bearings, one of which is fixed to the under face side of each side beam of the scale-platform, from which they depend. The lower end portions, 5, of these brackets are fitted in journal-hearing form, adapted to receive the journal portion ot'a transverse shaft, II, which is fitted to revolve therein.

At k are represented spur-toothed gear-pinions mounted-upon the shaft H, to which they are fixed in such position that their gear-teeth shall engage the gear-teeth of the toothed segment in Working contact.

At 1 is represented a sprocket-wheel fixed on the outward projecting end of the transverse shaft H, on whichthe spur-toothed pinions are mounted. At 1 is represented a sprocket-wheel fixed to the projecting end ofa shaft, m, mounted to revolve in a bearing on the upper end of a pedestal, K. This pedestal Kis of suitable dimensions, and is fixed on the upper face of the door of the platform in such on its upper end, is substantially in the same vertical plane with the sprocket-wheel I on the transverse shaft H.

At a is represented a chain-belt composed of suitable links to engage the teeth of the sprocket-wheels, and is employed to connect movement of one of the wheels to the other.

At N is represented a hand-wheel fixed on the outward-projecting end of the shaft m,

mounted on the pedestal. Thishand-wheel is the lengthwise floor beams or joist, E, and

side openings, b. These track-beams are cen- At e is represented a spur-toothed segrnen tof the end portions of the pivoted track-beams,

position that the sprocket-wheel I, mounted the sprocket-wheels I and l to transmit the pawl end will engage the teeth of a ratchet-.

wheel, 1', fixed to the shaft m on the pedestal.

At 8 is represented a springhavinga su'itable connection'yvith the lever-pawl p and with the pedestal in such a manner that its spring action will operate to hold'the pawl in contact with the ratchet-wheel r. The free arm of the lever-pawl serves as a means by which an at tendant may disengage the pawl from the ratchet-wheel. The rear ends of the trackbeams F are provided with a metallic portion, t, securely fixed in place thereon and projecting rearward over their ends, adapted to engage the gear-toothed pinions and limit the inclination of the beams. The rear transverse end beams, D, are shod with iron at points opposite the track-beams to receive the wheels of the vehicle.

At P is represented a hinged door designed to close the end opening, 0, and is capable of being raised on its hinged connection to its rearward-inclined position represented in the dotted lines, and supported in such inclined position by means of a brace-link, u, having a link-joint connection centrally with its front edge portion.

At 1% is represented the sides, and at T the bottom, of an inclined spout-like portion, in

this instance connected with the under side of form the several parts thereof are brought into the position represented in Fig. 1, when it is prepared to receive a loaded vehicle, which is then driven onto the platform, and is support- I ed on the track-beams thereof. The hinged door is then raised and supported in the position shown in the dotted lines. The attendant then disengages the pawl from the ratchet, and by means of the hand-wheel, or of the handle fixed therein, will rotate the wheel in the direction indicated by the arrow, which movement will be imparted to the gear-toothed pinions by means of the chain-belt and sprocket-wheel connection with the shaft on which they are mounted, and the rotations of the pinions by means of their gear-toothed connection with thetoothed segments will cause the trackbeams to swing upon their pivotal supports to the inclined position shown in the dotted lines in Fig. 2, which movement will place the vehicle supported on the beams in the same inclined position. The en tl-gate of the vehicle is then removed or opened, when its contents will be discharged through the end opening into the inclined spout, to be conducted into a receptacle prepared for its reception. The door in the platform is then closed, and the hand-wheel revolved in the direction opposite to that indicated by the arrow, which movement will return the parts to their position shown in Fig. 1, in which position they will be held bymeans of the pawl engaging the ratchet-wheel. The unloaded vehicle is then driven from the platform, and the apparatus is in position to receive another loaded vehicle, ready for another operation.

By this construction and arrangement of the parts we produce a simple and effective apparatus at a small cost, and in which we obviate the sudden jarring action or shock common in most dumping-platforms. have employed a sprocket-wheel and chainbelt movement by which to operate our improved dumping;pl.atform; but instead thereof a shaft and the well-known miter or beveled toothed gear-wheels may be employed; or a shaft and screw-gear connection with the toothed segments may be employed, and still be within the scope of our invention.

We claim as our invention t 1. The combination, with the track-beams or dumping portion of a platform, of geartoothed segments having a gear-train connection with an operating mechanism, for the purpose set forth.

2. The combination, with the gear-toothed segments fixed to the pivoted track-beams or dumping portion of the platforms, of spurtoothed gear-pinions to engage the gear-teeth of the segments, substantially as and for the purpose set forth.

3. The combination, with the spur-toothed gear-pinions having a gear-toothed connection with the gear-toothed segments, of a sprocketwheel and chain-belt connection therewith, substantially as and for the purposeset forth.

4. The combination, with the sprocket-wheel and chain-belt connecting with the spurtoothed gear-pinions, of a hand-wheel or winch to impart motion to the parts, substantially as and for the purpose set forth.

5. The combination, with the sprocket-wheel and chain-belt connecting with the spurtoothed gear-pinions, of a ratchet-wheel and pawl mechanism, substantially as and for the purpose set forth.

6. The combination, with the pivoted trackbeams or dumping portion of the platform, of detents operating to limit the descent of the dump, substantially as set forth.

' JOHN T. SAVAGE.

. JOHN LOVE.

Witnesses JACOB BEHEL, A. 0.BEHEL.

In this instance we IIO IIS

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