US2595312A - Bucket elevator and feed means therefor - Google Patents

Description

y 6, 1952 H. H. TALBOYS 2,595,312

BUCKET ELEVATOR AND FEED MEANS THEREFOR Filed Feb. 2, 1949 2 SHEETS-SHEET l will! H" .mlllll J fargzgya May 6, 1952 H. H. TALBOYS BUCKET ELEVATOR AND FEED MEANS THEREFOR 2 SHEETS-SHEET 2 Filed Feb. 2, 1949 Patented May 6, 1952 BUCKET ELEVATOl t AND FEED MEANS THEREFOR Henry H. Talboys, Milwaukee, Wis., assignorto Nordberg Manufacturing Company, Milwaukee, Wis., a corporation of Wisconsin Application February 2, 1949, Serial N 0. 74,193

6 Claims. (Cl. 198-98) My invention relates to an improvement in ballast handling mechanism and has for one purpose to provide a ballast screening assembly.

Another purpose is to provide a ballast screening assembly which may readily be accommodated on a single car and which is of relatively light weight.

Another purpose is to provide a ballast screening assembly with simple, compact and efficient means for receiving dirty ballast, for returning cleaned ballast to the right-of-Way, and for disposing of the fines and foreign material.

Another purpose is to provide an improved elevator for use with screening equipment.

Another purpose is to provide an improved assembly for removing the screened fines from the railroad right-of-way.

Other purposes will appear from time to time in the course of the specification and claims.

I illustrate the invention more or less diagrammatically in the accompanying drawings wherein:

Figure 1 is a vertical partial longitudinal section through the unit;

Figure 2 is a horizontal section along the lines 2-2 of Figure 1;

Figure 3 is a vertical section along the lines 3-3 of Figure 1.

Referring to the drawings, I generally indicates the rails of a track, upon which the belowdescribed screening unit may move. 2 generally indicates the lower portion of a car frame, which may include longitudinal and transverse elements, not separately identified. Upwardly extending from the base frame 2 of the car are a plurality of vertical structure members or supports 3, which are shown as connected at their upper ends by transverse channels or ele ments 4. The lower car frame 2 may be suitably supported on the rails I. I illustrate, however, suitable rail engaging wheels 6.

Referring to Figure 1, illustrate diagrammatically a multi-deck screen assembly generally indicated at A, the details of which do not of themselves form part of the present invention. I may, for example, employ vibratory screens which may be vibrated by any suitable vibratory rotor or rotors, not herein shown.

It will be understood that the herein described and shown ballast screening assembly may be used to process dirty ballast. Such ballast may be excavated by hand or by suitable mechanical equipment and may, by means not herein shown, be fed to the screen assembly A.

Beneath the screen assembly A is the endless conveyor 40, which is positioned and adapted to receive the fines which pass through the screen assembly. The endless conveyor 48 passes at its ends about suitably driven rollers 41. 45 indicates any suitable bottom supporting rollers mounted on the conveyor frame or support 46, which extends longitudinally of the unit and which may rest upon the bottom car frame 2.

It will be understood that the oversize is eliminated by the screen assembly A and delivered where desired, whereas the fines pass to the left along the endless conveyor 40, referring to the position in which the parts are shown in Figure 1. The fines are received in a suitable hopper, box or pan 41, into which extends the below described elevator.

The hopper, box or pan 4! is shown as rotatably mounted. It may, for example, have a circumferential bottom track 43 surrounded by a fixed track 49, the two tracks having therebetween any suitable balls or rollers 55. Preferably, the hopper, box or pan 4'! is continuously rotated during use. It may be driven by any suitable motor diagrammatically indicated at 48a, through the gear reduction GM, the pinion 50 and the gear 5!, the latter being mounted on the bottom of the hopper, box or pan 41. Thus the hopper, box or pan 4! is continually rotated and the material fed thereto, by the belt 40, is rotated and distributed and is prevented from concentrating at the point of its delivery from the conveyor 40.

52 indicates an upper turntable member which rotates in surrounding tracks 53 provided with suitable balls or rollers 54. 55 is a top frame structure or platform which may be rotated with the turntable 52 and is independent of the rotation of the hopper, box or pan 41. Although the hopper, box or pan 41 rotates during the use of the device, the platform 55 may be positioned at any desire-d position for the purposes which will later appear. The platform 55 is shown as carrying a motor 56.

51 indicates a generally vertically extending frame structure carrying upper sprockets 58 and lower sprockets 59, about which passes the endless belt or chain conveyor 60, which carries buckets 61. The sprockets 53 may be mounted on the shaft which, in turn, is driven by any suitable belt or connection 56 from the motor 56. It will be noted that a deflecting scraper 6'! is mounted on the lower portion of the frame 51 and causes an accumulation of material in response to rotation of the hopper, box or pan 4'! at a proper position to be picked up by the buckets 6|, when the hopper, box or pan 4! is rotated in the direction of the arrow shown in Figure 3.

Any suitable feed receiving means may be provided for the upper end of the elevator. I illustrate a receiving spout 70 into which the buckets 6i deliver the material. The material so delivered passes to the endless conveyor H, on the boom 12, the endless conveyor bein driven, for example, by a chain 73 passing around a sprocket 74 on the countershaft T5 of the boom 12 and passing, at its other end, about the sprocket 16 on the shaft 65 at the upper end of the elevator frame 51. i

The boom 12 may be suitably supported. from any suitable upwardly extending structure or mast 89 on the rotatably adjustable platform 55, its end being controlled, for example, by the cable 8! passing around a pulley 82 at the upper end of the mast and extending under an actuating or hoist drum 33 of the mast 83. The drum 83 may be actuated manually or otherwise to adjust the boom at any desired height.

It will be understood that the boom, with the platform 55, may be rotated about a vertical axis or may be located at various positions about the vertical axis of the turntable 53 without interfering with the normal delivery of material from the belt or conveyor 4i: to the hopper, box or pan d? and its removal from the hopper, box or pan t? by the buckets 59.

It will be realized that, whereas, I have described and illustrated a practical and operative device, nevertheless many changes may be made in the size, shape, number and disposition of parts without departing from the spirit of my invention. I therefore wish my description and drawings to be taken as in a broad sense illustrative or diagrammatic, rather than as limiting me to my specific disclosure.

The use and operation of my invention are as follows:

In the form of my invention as herein shown, I may deliver ballast to be cleaned to a suitable screening assembly. It is desirable to eliminate fines from the ballast and to return to the rightof-way the ballast particles or pieces of proper size.

In the structure herein shown, it will be understood that any suitable screening assembly A separates the undersize from the oversize and delivers the undersize or fines to the endless conveyor 9. The oversize may be returned directly to the right-oi-way by any suitable equipment or attachments not herein shown. The undersize is delivered by the endless conveyor i9 to the rotating hopper, box or pan 4?.

The rotation of the hopper, box or pan ll causes the material to accumulate against the scraper 5?. The scraper G7, which is mounted on the elevator frame 5?, is always located at the proper position to accumulate material to be picked up by the buckets 6!. The belt 69 is preferably driven at sufficient speed so that the material is delivered laterally at the top of the elevator at sufficient velocity to travel to and'be received upon the spout Ill, which delivers it to the receiving end of the discharge conveyor H.

By rotation of the platform 55 about the vertical axis of the turntable 52, the boom 12 may be set to deliver the undersize at any desired point or area. It may be delivered to another car for disposal or it may be wasted to the side of the right-of-way. As a matter of convenience,

I illustrate the motor 58 as mounted on the platform 55 and as driving both the elevating belt or conveyor 60 and the disposal conveyor H. Any suitable means may be employed for rotating the platform 55 to any desired position of adjustment.

It will be understood that the turntable structure 52 may be rotatably adjusted to any desired angle. When the screen car is being conveyed from place to place along the tracks, it is advantageous to have the parts in the position in which they are shown in Figures 1 and 2, with the conveyor boom 12 aligned with the axis or center of the car. However, it can be swung for use over either side of the right-of-way or over an adjacent car to the rear.

I claim:

1. In a feed and elevating assembly, a pan and means for rotating it about a generally upright axis, a conveyor adapted to deliver material to the interior of the pan, a turntable assembly mounted for rotational adjustment generally coaxially with the pan, a frame positioned on said turntable assembly, an endless bucket conveyor on said frame and means for driving it, said bucket conveyor having buckets extending into the pan in the course of their movement, and a laterally extending discharge conveyor adjustable in unison with said turntable assembly and adapted to receive material from said bucket conveyor.

2. The structure of claim 1, characterized by and including a boom on said turntable assembly on which said discharge conveyor is supported.

3. The structure of claim 1, characterized by and including a motor mounted on said turntable assembly and driving connections between said motor and said bucket conveyor and discharge conveyor.

4. The structure of claim 1, characterized by and including a scraper extending into said pan and mounted on said frame.

5. In a feed and elevating assembly, a pan and means for rotating it generally continuously about a generally upright axis, a scraper in said pan, adapted to concentrate, at a predetermined area of concentration, material fed to the pan, and a bucket elevator including a bucket chain having buckets positioned to pass through said area or" concentration, said bucket elevator being adjustable about a generally upright axis, said scraper being mounted for adjustment within said pan when the elevator is adjusted.

6. The structure of claim 5, characterized by and including a turntable assembly on which said bucket elevator is mounted, and from which it depends, and a boom on said turntable assembly positioned and adapted to receive the discharge from the upper end of said bucket conveyor.

HENRY H. TALBOYS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 755,681 Long Mar. 29, 1904 1,528,474 French Mar. 3, 1925 1,613,420 Warr Jan. 4, 1927 2,194,144 Gill Mar. 19, 1940

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