US1440910A - Shoveling machine - Google Patents

Description

W. COLE ET AL. SI-IovELINc MACHINE. ORIGINAL FILED JUNE 28. |921.

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' W. COLE ET AL.

SHovEl. NG MAcHI NE ORIGINAL FILED JUNE 28, 1921,

Patented `lan., 2, 1923.

SHOVELING' MACHINE.

Application tiled. June 28, 1921, Serial No. 481,121.

To all whomy t may concern.' v

Be it known that we, WILLIAM Conn and JAMES Gonniii, citizens of the United States of America, residing at lronwood, in the county of Gogebic and State of lVilichigan, have invented certain new and useful 1inprovements in Shoveling Machines, of which the following is a specification. c

Our present invention relates generally toA improvements in shoveling machines and more vparticularly to improvements in shovcling machines of the type described and claimed in the Patent No. 1,321,983 granted to 1William Cole under date of November 18, 1919. y Among the various objects of our improvements we aim to provide an extremely compact, simple and effective arrangement capable of entire operation by air pressure although not necessarily limited to the use of such fluid, as well as an arrangement` in which the relative location and particular connection of the parts permits of quick effective operation in extremely limited spaces such as for instance the loading of mine cars under ground.

Like in the patent above referred to our present improved appara-tus employs two piston cylinders controlling and actuating a clipper arm, but unlike the arrangement of the above patent, the dipper arm is in the present instance rigid with the dipper bucket and pivotally engaged at spaced points by the piston rods of the two cylinders in such manner that in all normal opera-tions there is but slight variance in the position of the upper cylinder and the head room necessary for proper operation of the machine is reduced to a minimum as hereinafter particularly set forth.y

In our present apparatus we employ a rotating frame mounted and operating much similar to the rotating frame of the above patent, 4but we avoid certain disadvantages -of the above arrangement detracting from speedy effective operation by the employment of a. dipper including a dipper arm and a bucket rigid with the clipper arm, apart from and connected to the pistons of the two cylinders.

With this general outline our invention. willit is believed be thoroughly understood, and its advantages appreciated from a con sideration of the following description re ferring to the accompanying drawings,-

Renewed December 1, 1922.

which latter form a and wherein,

Figure 1 is a side elevation of our iinproved machine, parts of the cylinders being broken away and in section,

Figure 2 is a front elevation,

F 1 0-ure 9 is a rear eleyation I)arts bein part of this specification U broken away and in section, and

Figure 4l is a horizontal section taken on line 4 4 of Figure 1.

Referring now to these figures, the rotating frame of our present machine, including stiffened parallelly spaced uprights 10, securely fastened at their lower ends upon a downwardly opening base ring or platform 11, is mounted as in the patent above referred to upon a circular supporting base 12, portions of the platform and supporting base having anti-friction balls or other members 13 therebetween to relieve friction.y rlhe supporting hase 12 is fixed upon a truck 14 having wheels 15 adapted 'to rolling movement on mine tracks and the like 16, and has secured thereon a stationary ring gear 17 with which a pinion 18 is in engagement at one side. Pinion 18 is mounted upon the lower end of a motor shaft 19, the latter depending from motor 2O which, in the present instance is a rotary fluid motor to which a fluid supply pipe 21 leads through al valve box 92. rllhe valves of this motor which may be of any suitable type are controlled through manually actuated connections 23 from one hand lever of a series of such levers located at the right hand side of the frame looking forwardly and at the side opposite to that upon which the Huid motor 20 is mounted. These levers 24, one of which controls the supply of air to the opposite ends of the upper cylinder 25 through its ducts 26 and the other of which controls its supply of air to the opposite ends of the lower cylinder 27 through its ducts 28, are mounted above and forwardly of the drivers seat 29 so as tov be within his convenient reach for proper and effective manipulation at all times.

The two cylindersf and 27 are each provided with a transverse pivot pin 30 whose opposite ends are iournaled through bearings in the side plates 10, Both ofvthese pins are located intermediate the ends of the cylinders`r the pin of the lower cylinder being at a point but slightly to the rear of the center ot the cylinder whereas the pin 30 of the Lipper cylinder is located adjacent to the rear end of its respective cylinder and its supporting bearings indicated at 32 are positioned in upper rearward extensions 33 of the side plates l() adapting the upper cylinder to a substantially horizontal position at all times in ordinary use and thus minimizing its swing so as to avoid projection thereof to any appreciable extent and at any time above the upper ends of the side plates.

The cylinders 25 and 27 have pistons 3a and 35 and piston rods 36 and 37. the forward ends of the latter of which project through the 'forward ends of the cylinders and between'the rigidly trussed parallel side bars 38 of the clipper arm generally indicated at 39.

The forward end of rod 36 is connected to the clipper arm adjacent to its upper end by a. transverse pivot pin 40 while the forward end ofV piston rod 37 is connected by a transverse pivot pin al to the dipper arm intermediate the ends of the latter and but slightly above the dipper bucket. 4t2 which is rigidly mounted at the lower end of the clipper arm between the lower flared portions 43 of the side bars 38. This clipper bucket is open at its forward side and has a rear hinged gate or door All whose trip release and control may be of the ordinary type and is not here illustrated as it forms no part of our present invention.

The fluid supply pipe 2l leading to the motor 20 and which also has branches 45 and 46 leading to the cylinders 25 and 27 through valves if? and i8 cont-rolled by certain of the hand levers 24.-, is preferably supplied from a pipe' 4:9 extending` upwardly through the supporting base l2 and the lower platform ll, axially of and rotatable with the latter, whose lower end may be conveniently attached by a flexible hose and the like to a suitable source of pressure supply.

It is obvious from the above that by the manipulation of its respective hand lever 24, the motor 2O will be supplied with pressure to effect rotation of the vertical shaft 19 in. a desired direction whereby the engagement of the pinion 1S with the ring gear 17 will. rotate thc revolving frame between various positions indicated in dotted lines in Figure land in any such positions i it is obvious the operator seated on the seat 29 retains full `control of the several levers fortheir manipulation bot-l1 to effect movement of the revolving frame and the cylinder pistons 34E and 3,5.

. The action of the shovel in operation is somewhat similar to that of a man shoveling and the bucket i-2 may be lfirst dipped upon forward movement of the piston rod 36 during which movement the clipper arm 39 pivots: on the forward end of the piston rod 37. Then by forward movement of the piston rod 37 the dipper bucket is carried for-- wardly so as to scoop up its load and at the same time swing upwardly as it pivots on the foruf'ard end of the piston rod 36. These movements are respectively illustrated by the dotted line positions 391 and 391 of Fig.

ure l and it is obvious that the loaded bucket may, when it has been shifted upwardly to approximately the plane of the upper cylinder 25, be shifted forwardly over the point at which the material is to be dumped, for instance overa mine car, with but very slight pivotal :movement or inclination of the upper cylinder 25.

Inclination of both cylinders is indeed minimized so that they may be arranged close to one another and their operation in practice with but slight variation from the horizontal reduces to a minimum the head room required for the proper operation of the machine so as to adapt itself for use within tunnels, mine drifts4 and the like where those of the ordina-ry'type could not be used.

The rigid connection of the flipper bucket with the dipper arm avoids the necessity of first grounding the bucket and thus does away with practically all waste of time, the

. operation as the result being capable of being carried out speedily and effectively for the purposes previously described.

We claim:

l. A shoveling machine including a .rotatable support having spaced uprights, upper and lower` cylinders between said upj rights and pivotally connected thereto intermediate the ends of the cylinders, pistons in said cylinders, rods extending from said pistons forwardly through `said cylinders, and a clipper arm having a rigid bucket at its: lower end and having pivotal connections at its opposite end and at a point intermediate its ends, with the forward ends yof said piston rods.

2. A shoveling machine including a rotatable support having spaced uprights, upfper and lower cylinders between said uprights and pivotally connected thereto intermediate the ends of the cylinders, pistons in said cylinders, rods extending from said pistons forwardly through said cylinders, and a dipper arm having a rigid bucket at its lower end and having pivotal connections at its oppositeend and at a point intermediate its ends, withl the forward `ends of said piston rods, the upper cylinder `having its supporting pivot adjacent to the rear end thereof and the lower cylinder having lts supporting pivot adjacent to `the center thereof.

. 3. A shoveling` machine includino- `spaced side pilates having upper rearward extensions, an upper cylinder pivotally supported between the said rearward extensions at a point adjacent to the rear end ofthe cylinder, a lower cylinder pivoted to said uprights; at e point intermediate its ends adconnected to the orward end of the rod of the upper cylinder and having a pivotal 1D connection intermediate its ends and adjacent to the bucket, with the forward end ofthe piston rod of the lower cylinder.

In testimony whereof we have aflixed our signatures.

VILLIAM COLE. JAMES GOUDIE.

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