US394815A - John r - Google Patents

Description

(No Model.)

J. R. BEYNON. ALARM PORGRAINELEVATURS, aw.

No. 394,815. Patented Dec. 18, 1888.

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um uuml" IINTTED STATES PATENT OEETCE.

JOHN R. BEYNON, OF lVA'lERTOVN, VISOONSIN, ASSIGN OR OF ONE-HALF TO JAMES ll. MURPHY, OF SAME PLACE.

ALARM FOR GRAIN-ELEVATORS, 8&0.

SPECIFICATION forming part of Letters Patent No. 394,815, dated December 18, 1888.

Application filed July 1G, 1888. Serial No. 280,054. (No model.)

To all whom, t may concern:

Be it known that I, JOHN R. BEYNON, of vater-town, in the county of Jefferson, and in the State of 'Wisconsiin Ahave invented certain new and useful In'iprovements in Alarms for Grain-Elevators, &c. and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to alarms for indicating the clicking of elevators, conveyers, spouts, Jac., employed in the handling' of grain and other loose material; and it consists in certain peculiarities of construction and coinbination of parts, to be hereinafterdescribed with reference to the accompanying drawings and subsequently claimed.

In the drawings, Figure l represents a vertical transverse section of my invention, taken on line l l of Fig. 2; Fig. 2, arear elevation of the same, certain of the parts being broken away for the purpose of better illustration; and Fig. f3, a side elevation of the device shown in Fig.

Referring by letter to the drawings, A represents the stock, B the belt, and O the buckets, that form a grain-elevator of ordinary con` struction. At any convenient place along its length the stock A has an opening' in one of its sides, and in this opening is fitted an outwardly-extending casing, D, the latter being preferably arc-shaped at its upper end and provided with a flange, b, by which it is secured to said stock.

An outwardly-inclined deflector-plate, E, depends for a certain distance from the inner edge of the top of casing D and extends from side to side of the latter. Pivoted to the sides of the casing adjacent to the lower edge of the dellector-plate E is a valve, F, that is held in its normal or closed position against the upper end of a discharge-chiite, (t, by means of au angular extension or counterpoise, Il, the latter being' of such length that its outer end is always in Contact with the arcshaped top of said casing.

The upper portion of the chutel G is turned down to form a deflector-plate, I, that has an inclination opposite to that of the one E, and depending from the under side of said chute is an arc-shaped liange, c, under which works the angular extension or counterpoise .I of a valve, K, the latter being held in its normal or closed position against another chute, L, that leads back into the stock A of the elevator. The chutes G L, being' opposite to each other, are so arranged that a space, M, is left between the lower end of the former and the upper end of the latter for the purpose to be hereinafter described.

Pivoted to the sides of the casing D, so as to close against the upper end of the chute L, is a valve, N, the latter being also provided with an angular extension or counterpoise, O, by which it is held in its normal or closed position. n

To one end of the pivot d of the valve Nis secured an arm, P, that is provided with a right-angular extension, e, arranged to come under yanother arm, Q, the latter' being pivoted to the adjacent outer side of the casing D, as best illustrated in Fig. 3. As illustrated by the drawings, the arm Q has a rod-connection, f, with the pallets g of an ordinary clockalarm, the latter, for the sake of convenience, being shown attached to the casing D; but it is obvious that this alarm may be located at any point more or less remote from the elevator.

lvhile I have shown and described a clockalarm in connection with the valve N, it is obvious that I may employ an electric or other suitable alarm without departing from the spirit of my invention.

In the operation of my invention such inaterial as overflows from the buckets O of the elevator will fall against the deliector-plate E, to be guided by the latter down against the valve F, and when the pressure of the material overcomes the resistance of the angular extension or counterpoise of said valve the latter will open and allow said material to escape down the chute G to come against the valve N. If there is enough pressure of the material to overcome the angular extension or counterpoise O of the valve N, the latter will open, and not only allow said material to escape, and thus relieve the elevator in case there is sufficient How to keep both valves F N open, but at the same time will raise the arm P to in turn actuate the arm Qfand IOO thereby startthe alarm, thus giving notice that the elevatoll is either choked or about to become so. In case only a small quantity oli' the material escapes down the chute G, it will drop through the space M onto the chute I and accumulate against the valve K until there is enough to cause said valve to open and let said material back in the elevatorstock to be caught by one ot' the buckets and 1o carried onto the pointot discharge. As there is always more or less air being forced up in the elevator-stock by the movement of the buckets C, the valve l( is principally designed as a cut-oft, to prevent the air-currents from keeping back the material that may tend to it'all through the space M, and a-lso to prevent any opening ot' the valve N by means ot' said Vatir-currentsg hence it will be seen that by means ot` the space )l and valve K the danger 2o ot' starting a t' lse alarm is obviated. Either one of the valves F N may be omitted, it found desirable; but the one retained will be necessarily connected with the alarm.

By the emliloyment ot' the device z bove described in connection with a grain-elevator Q the loose material cannot choke up in the stock and stop the belt, and consequently the liability of the latter to be burned-by the friction ot the drums (not shown) is obviatetfl.

lVhile I have shown and described the valves and au alarm mechanism in connection with an elevator, said valves and alarm mechanism can be as readily applied to conveyors, spouts, &c., and I do not therelore wish to be 3 5 umlerstood as limiting myself to any particular device that. may be employed in connection with my iml'rrovements iior the purpose ot' handling grain or other loose material.

Having thus fully described my invention,

4o what I claim new, and desire to secure by Letters Patent, isw- 1. The combination, with a grain-elevator or analogous device having one ot' its sides provided with an opening, of a. valve arranged to normally close said opening and an alarm mechanism connected to the valve to signal the opening ot the latter, sul)stantial'ly as set orth.

2. The coml'iination, with an elevator or analogous device t'or handling grain or other loose material, ot' a dscharge-chute, a valve normally closed against the upper end ot' the chute and arranged to be actuated by an accumulation ot the material, another valve also normally closed against said chute at or near the mouth ot' the same, and an alarm mechanism connecttal to the latter valve to signal the opening thereof, subst; gitial'ly as set t'orth.

3. The comlnation,with an elevator or an alogous device 't'or handling grain or other loose material, ot' a discliai'ge-cl1ute, a returnchute arranged adjacent to the dischargechute and communicating therewith, a valve normally closed against said discharge-chnte and arrz'ingt'id to be actuated by an accumulation of the material, a cut-oft valve normally closed against the return-clude, another valve also normally closed against said discharge chute, and an alarm mechanism connected to the latter valve to signal the opening'thereof, substantially as set torth.

Jr. The combination, with an elevatoror analogous device for handling` grain or other loose material, oi' the casing l), provided with the detiectorpla1es E I and commuilit-ating chutes G L, the valves F N K, pivoted to the sides ot' the casing and individually provided with an angular extension or counterpoise, the arm I), secured to the pivot ot valve N, the pivoted arm Q, arranged to be actuated by arm I), and an alarm n'iechanism connected to said arm Q, substantially as set forth.

In testimony thatI claim the foregoing I have hereunto set myhand, at lVatei-town, in the county ol' Jetli'erson and State ot' IVisconsin, in the presence otf two witnesses.

JOHN R. llEYNON.

lVitnesses:

C. I3. SKINNER, M. A. BLUMENFELD.

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