US852504A - Conveying device. - Google Patents

Description

PATENTED MAY 7, 1907.

G; GRUHL. UONVEYING DEVICE.

: APPLIOATIOH FILED LUG- B, 1906.

Q r 1 1 a .CARL GRUHL, or BRUHL, GERMANY.

CONVEYING DEVICE.

Specification of Letters Patent.

Patented May '7, 1907.

Application filed August 6, 1906. Serial N0. 329,473

To all whom it may concern.-

Be it known that I, CARL GRUHL, a citizen of the German Empire, and a resident of Briihl, near Cologne, Germany, have invented certain new and useful Improvements in and Relating to Conveying Devices, of which the following is a specification.

In the manufacture of brown coal briquets the raw coal coming from the pit is, in the first place, disintegrated and then deposited as fine coal on the so-called coal loft, from where it is conveyedto the drying apparatus. In order to make the drying process, as far as possible, independent of the hoisting and dressing, it is desirable to have always a not too small quantity of fine coal on hand. If coal is drawn up only in the daytime it is necessary to store up the necessary stock of fine coal on the coal loft for continuing the drying during the night. This fine coal is then, during the night, conveyed to the drying-apparatus by means of shovels and carts. In the same degree as the heaps of coal gradually recede from the feed-openings of the drying-apparatus this labor is made more difficult and costly. But the drying and the production of the whole factory entirely depends on a sufficient and assured conveyance of coal to the drying-apparatus.

The object of the present invention is to effect the conveyance of the fine-coal to the feed-openings of the dryin -apparatus in a mechanical way. The fundamental condition for such a device for conveying the coal from the coal heap is that it always accommodates itself to the height and changing wit its drivinggear, is not covered or encumbered by the line coal, and can work freely in every position. The device must therefore be able to convey all the coal from the highest slope down to the bottom of the coal loft to the drying devices.

A device of this kind is illustrated on the accompanying drawing in Figures 1 to 3. Fig. 1 shows a side-view of the device in two different working positions, Fig. 2 a view of the upper frame in its highest position on the coal heap, seen from above. Fig. 3 is a top view of the lower frame working in its lowest position on the bottom of the coal loft.

Similar letters refer to similar parts throughout the several views.

In the main the device consists of two iron. frames, the upper frame a and the lower frame I). The upper frame a is journaled shape of the coal heaps and that it itself,

rigidly and, at the same time, turnably in eye-bearings on the shaft 0 on one of the sides not facing the feed-openings z of the drying devices 1), by which shaft the whole device is driven. The upper frame merely serves as a scaffold for receiving and transmitting the driving-power to the lower frame b. The latter forms the support and the guide for the forwarding device convey ng the coal from the heap C to the feed open ng a, which may consist of a double chain (1 with scrapers e or similar devices attached to 1t.

Both frames 0, and b are connected on the sides facing the feed-openings z of the drying-apparatus by joints f and can be ad usted at the same time by a rope-pull g, by means of a rope-Windlass A, in accordance with the height of the coal-heap C. In a like manner the lower frame I) can be raised and lowered on its free end by a rope-pull h, by means of a rope-Windlass B. As the upper frame a, as has already been stated. is rigidly journaled on the side not facing the feed-opening z of the drying-devices 1;, both frames a and b can be accommodated to any height and slope of the coal heap C. The lower frame I) carrying the trail-chain or the like lies always on the surface of the coal-heap.

The trail-chain d, or the like, is driven by the shaft 0, by means of the toothed wheel gear i, 7c, above the upper frame a, through a chain-wheel Z, a driving-chain m and a chainwheel a. The latter transmits its motion through driving-chains and chain-wheels 0 to a shaft journaled in the lower frame 6, on which are fixed the guide-wheels g for the trail-chain d. The latter is thereby moved in the direction indicated by the arrows in Fi 1.

Ilhe essential and new feature of the invention consists in'the use of two frames connected with each other in a manner that they can be turned and shifted, but are otherzontal axle, being on one end fiXedlyj ournaled,

detrimental oscillations, which will always show themselves with loosely suspended devices, are avoided.

This device is also suited for other industries, where there is a question of conveying material consisting of small pieces mechanically to a certain point (feed-opening).

What I claim as my invention and desire to secure by United States Letters Patent 1s In a device for conveying small pieces of material, in combination, two frames (1 and b, movably connected at one end, the frame a being pivoted to turn on its other end, and the frame I) carrying a trail chain (1 or the like, which frames can be raised and lowered at their connected ends, so that they can be adjusted to any height of the heap O, sub- 15 stantially as set forth In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CARL GRUHL.

Witnesses LOUIS VANDORN, CARL BoLLER.

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