US1280032A - Conveyer. - Google Patents

Description

A. B. HOLLEY.

CONVEYEB. APPLICATION rlLzomAn. 2. 1917.

1 ,280,032 Patented Sept. 24, 1918.

2 SHEETS-SHEET '1.

A. B. HOLLEY.

CONVEYER. 7 APPLICATION FILED MAR. 2.1917- Patentedsept. 24, 1918.

2 SHEETS-SHEET 2.

IIIIIHI 'l ummmmlmmn ALBERT B. HOLLEY, OF VIRGINIA, MINNESOTA.

CONVEYER.

Specification of Letters Patent. Patented Staph, 24, 19918.,

Application filed March 2, 1917. Serial No.'151,980.

To all whom it may concern:

Be it known that ALBERT B. HoL'LEY, a citizen of the United States ofAmerica, residing at Virginia, in the county of Saint Louis and State of Minnesota, has invented certain new 'and useful Improvements in Conveyers, of which the following is a specification.

My invention relates to improvements in conveyers in the class of loading and unloading machines and the invention involves a machine for elevating and conveying material as from the ground to cars, wagons or other vehicles, or for conveying materials from one position to another, but in the accompanying drawings the machine is best adapted for use in elevating ore, coal, 'and sand or other similar materials from the ground to their proper receptacles.

The primary object of the invention is the provision of a device or apparatus of this characterwhich is power operated for the purpose of loading ore, coal, etc., to waiting receptacles, and which is efficient in its operation, simple in construction, durable,

and comparatively inexpensive in construction and maintenance.

The invention consists in certain novel combinations and arrangements of parts whereby a shovel or scoop device has imparted thereto a pitching mbtion whereby the material is conveyed froinend to end of the shovel for loading or other purposes.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention, constructed according to the best mode I have so far devised for the practical application of the principles of my invention.

Figure 1 is a top plan view of a machine embodying my invention.

Fig. 2 is a side elevation of the machine. Fig. 3 is an enlarged detail view showing the actuating mechanism of the shovel, parts being omitted for convenience of illustration.

Fig. 4 is a vertical sectional view through one of the supporting plates for the actuating mechanism, a portion of the shovel being also shown in section, and some of the actuating parts being shown in full.

Figs. 5 and 6 are diagrammatic views showing modified forms of guides for the shovel.

In the preferred embodiment of my invention as shown in the accompanying drawings I employ a supporting frame or base comprising the uprights or posts 1, 1 having the runners or shoes 2,2, resting on the ground or fioor, and at the top of the frame a bed plate 3 is provided for the motor 4 of suitable type and character. By means of the two horizontal side bars 5, 5, the front part of the frame is connected to the two rear posts 6, 6, and a cross brace 7 connects these two rear posts, while the shoes or runners 8, 8, are provided for these posts. By means of the shoes or runners 2 and 8, the machine is portable and may be .slid over the ground or floor as desired,

while at the same time the shoes provide a 'stable and rigid support for the machine.

Attached to the front posts 1, 1 and arranged at opposite sides of the front frame are a pair of supporting side-plates 9 and 10 which are riveted or bolted to the uprights 1 and render the front portion of the frame rigid, as well as supporting the actuating mechanism.

Suspended between the front and rear ends of the supporting frame is an inclined shovel 11, preferably of trough-like shape with a scoop-end at the floor and extending upwardly therefrom so that its rear end is located at a desired altitude 'for best results.

The shovel is suspended so that it may have pair of links 12 12, to the plates 9 and 10,

and at the rear the scoop is pivoted to the posts 6, 6, by' the links 13, 13. The pivot points of the links 12 12 are indicated by the numbers 12' and 12 on the respective plates and shovel, and at the rear the pivot points are indicated by the numbers 13' and 13 on the posts 6 and .shovel respectively.

A combined vertical reciprocating motion and a horizontally reciprocating motion is imparted to the suspended shovel by the following actuating mechanism.

A revoluble actuating shaft 11 is journaled in bearings 15, 15 of the two supporting plates 9 and 10, and this shaft is driven from the motor by means of the wheel 16, chain 17, and wheellS on the shaft, the parts being indicated in conventional manner in Figs. 1 and 2, but it will be underof its descent, while cam 20 follows the ascent of the trough, and during its descent apphes power sufficient to accelerate the forward movement of the shovel sufiiciently to permit the shovel to complete its forward movement while the material falls vertically, coming to rest at the end of the shovel motion at a point farther up on the shovel.

Directly below the revoluble shaft 14 is supported the oscillatable or rock shaft 21 journaled in the bearings 22 of the supporting plates, and fixed on this shaft are a pair of arms 23 and 24, pivoted at the respective points 23' and 2 1 to the shovel 11. At the extremities of the rock shaft are levers 26 and 27, fixed on the shaft and arranged at predetermined angles so that the respective wheels 28 and 29 on these arms co-act with their cam disks 19 and 20 to actuate the shovel. Cam 19 is so designed that in its revolution to the left (anti-clockwise) it will gradually bear down the wheel 28 until the maximum point 19 ofthe cam has reached the wheel and the shovel isbrought to dotted position in Fig. 3 with the Wheel down and the shovel raised, and the shovel is raised graduall but the movement of the cam from polnt 19 to 19 is such that at the start the descent of the shovel will be gradual, but will increase rapidly. By the motion thus imparted to the shovel it is evident that the material willbe scooped up at the forward or front end and then be gradually Worked toward the rear of the inclined trough by the cam action. As the shovel is made to swing upwardly it is evident the material therein will be carried up and back, and then when the shovel descends and moves forward it leaves the material in the air and swings forward under the mass by the :quick return movement of the cam, thus passing the material step by step to the rear, and at each forward swing scooping or shoveling up new material and supporting the transient material at a different point or points. The material of course falls by gravity after the shovel leaves it, but the quick return movement of the shovel carries the shovel forward with relation to the mass of material. so that at the upper rear end the material falls over the end of the shovel into a waiting receptacle which may be a wagon, car, etc.

The operation of the device, it will thus be seen, is entirely dependent upon the accelerated downward movement given the shovel, whereby the vertical element or component of the compound motion is accelerated to such a degree that this vertical component of any point on the shovel follows the speed acquired by a falling body through the same vertical distance. On account of this char acteristic of the device, the material is free to drop during the time of the forward and downward motion of the shovel, and the material comes to rest on the shovel at the same instant that the forward motion ceases, at a point on the shovel a distance upward equal to the horizontal component of the motion. The material thus lies undisturbed in the shovel excepting that it gradually ascends, or moves progressively, with pulsating movements, in an integral mass. Upon account of the dependence of the law of gravity for the operation of the device, there is but one correct speed at which any cams will work, and this speed must be such that the time intervals will correspond correctly with the distance through which the material falls.

'hile I have shown the cams as the instrumentalities for imparting the slow upward and rearward travel of the shovel and its comparatively quick return, it will be apparent that other devices may be used for this purpose. For instance I contemplate the use of a guide or race R and roller W in Fig. 5. or a straight guide R instead of the curved guide may be used in Fig. 6, to displace the links.to cause the trough or shovel to follow its combined vertical and horizontal reciprocating movement.

It will also be understood that the same action may be imparted to ahorizontally disposed shovel or trough to cause material to be conveyed thereby, and the material could also be conveyed down an inclined carrier that was not provided with sufficient pitch to permit the material to slide freely.

WVhat I claim is r 1. A conveyer comprising a reciprocable carrier, supporting means for causing the carrier to move in a curved path and means for imparting uniform forward motion to it follows the speed acquired by a body falling through the same vertical distance.

3. A conveyer comprising a pivoted, reciprocable, inclined carrier and means for imparting uniform motion to the carrier in one direction and for imparting thereto an accelerating return motion, the vertical component of the return motion being accelerated to such a. speed that it follows the speed acquired by a body falling through the same vertical distance.

4. The combination with a portable supporting frame of an inclined shovel and pivotal suspending means therefor for causing the shovel to be raised when moved in one direction and lowered during its return movement, and means for impartii'ig uniform movement to the shovel in one direction and for imparting thereto a quicker and accelerating return movement, whereby material in the shovel is free to drop during the return motion of the shovel and comes to rest simultaneously with the cessation of the return movement of the shovel.

5. The combination with a supporting frame, of a shovel and suspending means therefor providing an upward and rearward swing, a cam shaft and cams thereon for imparting a rearward swing to the shovel at a uniform speed, and for imparting a quicker return movement of the shovel.

6. The combination with a supporting frame of a horizontally and vertically reciproeable shovel and pivoted links suspending the shovel, cam disks supported in the frame, and levers in engagement with said disks to impart a rearward swing at uniform speed and an accelerating forward swing to the shovel.

7. The combination with a portable supporting frame of an inclined shovel having its forward lower end adapted to engage and scoop material, pairs of pivoted suspending links for the shovel, a driven camshaft and cams thereon for imparting uniform movement to the shovel in one direction, and for imparting thereto a quicker and accelerating return motion.

In testimony whereof I aflix my signature.

ALBERT B. 'HOLLEY.

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