US1420681A - Loading machine - Google Patents

Description

LOADING MACHINE.

Patented June 27, 1922.

' 2 SHEETS-SHEET 1.

F. BILLINGS AND R. P. GREENLEAF.

MPL10/111011 F1151) FEB.25,1918. 1,420,681.

F. BlLLlNGSjAND R. P. GREENLEAF.

LOADING MACHINE.

APPLICATION FILED FEB.25,191B.

Patented June' 27, 1922..

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FRANK BILLINGS AND ROBERT P; GREENLEAF, or CLEVELAND, oHro; SAID GREEN- .LEAF ASSIGNOR TO .SAID BILLINGS. I

LOADING iviAcHiNE.

To @ZZ 'whom 15 may concern'. Y Beit knownthat we, FRANK BILLiNGs and Bonner BGREENLEAF, citizens of the United States, and residents, respectively, of `Cleveland, in the county of Cuyahoga and State of Chio, and Cleveland, in the .county of Cuyahoga and State of Ohio, have invented a certain new and useful improvement in Loading Machines, of which the following isa full, clear, and exact description.

This invention relates to loading machines Y andl has particular reference to loading machines for use in mines to pick up loosened `material such4 as ore and coa-l, and deposit the same in cars or other suitable receptacles.

The principal object of this invention is to enable the digging and conveying mech-V anism,that is to say, the mechanism which receives and conveys the material from in front of the machine to be fed or moved forwardly without the necessity of laying or advancing the track during the period of loading. Further the iiiventionaims to provide a' construction such that as this mechanism is advanced, the car orreceiving elef' ment may be corresponding advanced with- #out moving the supporting part Vresting on or secured to the rails of the track. In carrying out the present invention we provide a construction `embodying a base` or supporting part designed to resten, or lto be secured to the rails of the track, and

fon this base we provide a second base which may be termed the intermediate base, which is movable forwardly and rearwardly with reference to the lower or sub-base, and which supports the digging and-conveying mechanism. Additionally we provide means whereby the 'car or receiving element may be run up onto the rear end of thel sub-base and advanced forwardly along the same as the intermediate base with the digging and conveying mechanism -is advanced, softhat lthe car may always be inposition to receive the material-which is discharged by the conveying mechanism.

The invention may be further brieiy summarized as consisting incertain novel details of construction and combinations and the appended claims.

l InV the accompanying sheet-s of drawings,

F ig. l is a side View of a loading machine Specification of Letters Patent. Paten-fed June 27, 1922.

Y Application inea February 25, 191s. sei-iai No. 218,929.

embodying our invention; Fig. a top" Vplan View ofthe same; Fig. 3fis a plan view Lof the sub-base and the intermediateybase @EN @FICE-l which is supported on, and is movable lengthwise of the former; Fig. l is a ytransverse sectional viewsubstantially along'the line 4 4 of F ig. 1, looking inthe direction indicated by the arrows; anddF ig. 5 is'fya fragmentary section substantially along vthe line 55,of, Fig. l. l I l The loading machine embodyin thisinvention includes a lower base or su -fbase l() which is designed to reston, and 'if desired,

to be secured to the rails ll ofatrack which may be a` mine track. The invention is not i necessarily Vconfined in its use to loading material in mines, although 1t khas special utility for that purpose. This sub-base iii-- cludes aplatform 10?l which in this instance is designed to rest directly on the rails ll,v

andas'here shown, is designed to beV clamped there-to byclamps 10b. Any othersuitable means of supporting the'` sub-base onthe rails may be utilized, and also for holding" the sub-base down to the rails, the clamps'V p otherwise seeuredrtor the platform l0, and with 'outer elevated horizontal flanges 10 which constitute the tracks Y for the intermediate base, these flanges lOefbeingoutside of the trackrails 11. Along the inner` edges of the horizontal anges 10d of theV Zirails 10 are Vflanges 10f constitutingrails which are directly above the track rails, ll1, and form tracks for mine c'ars as will. be eX- plained subsequently.y i'

The upper or intermediate base preferablyincludes a horizontal frame or platform 12 which as here shown, is about as long as the sub-base, andv is supported on-the latterl in such a way that it caribe moved along the sub-base ,with itsV forward end `projecting well forwardly of the latter. diate base is supported on the sub-base A-in such a manner that itcan be moved easily The interme-r and at the 'saine time well supported, to this end the forward portion of thefsub-.base

is provided with rollers 10g (see Figs. l1 and Aon which the platform 12 rests, and the rear end of the intermediate base is provided with rollers 12a and 12b, the former engaging the upper surface of the iianges 10e of the Z- rails constituting a part of the sub-base, and

Vthe latter rollers 12b engaging the lower surfaces of these ianges. Preferably the upper rollers 12a are secured to a cross-shaft 12C at the rear end of the intermediate base so that both rollers may be positively turned,

"and thus feed the intermediate base for- `wardly or rearwardly. For this purpose Vthese rollers 12a are provided with peripheral teeth which engage in suitably `spaced openings of the flanges e of the Z- rails 10c. Y in effect, the toothed rollers and f' openings in the fianges of the rails form a rack and pinion construction. The shaft 12C may be turned in any suitable Vmanner such as by applying a crank to one end thereof.

0n this intermediate' base 12 is mounted any suitable form of digging or receiving andV conveying apparatus or mechanism, the

function of which is to pick up niaterialat the front of the intermediate base and toA convey the same rearwardly preferably at least to the rear of the intermediate base.

For convenience we have shown diggingand vconveying mechanism similar to that constituting the subject matter of our prior application, Serial No. 179,300, filed July 9, 1917, and entitled Loading machine.

Since this digging and conveying mechanism is shown and described with considerable detail in our prior application, and since it is illustrated here simply for convenience and as merely one example of many different mechanisms, which may be used for this purpose, a more or less general description will here suffice.

, however', that this particular mechanism in- `brought up to material located at the sides as well as at the front of the machine without shifting to any extent the rear discharge point. Additionally this digging and conveying mechanism as here shown, includes a reciprocating motor 13C which is connected ,at its forward end to the inner member 13d of a two-part ram carrying pinions 13f which engage stationary racks 13g so that when the inner rain member is shifted forwardly and rearwardly it will shift attwice its speed lt may be stated,`

the outer ram member 13h, the inner and outer rain members being supported on rollers 13j and 13k. The outer ram members 13h carry castings 13 and pivoted to these castings are telescopic arms 13m to the forward ends of which is connected a material ieceiving and conveying shovel or bucket 13. The arms 131m are provided at their inner or rear ends with gear segments 130 which are concentric with respect to the pivotal axis of the arms, these -segments being designed to engage racks 13p carried Yby theframe or body 13.

This digging and conveyingmechanism is therefore so constructed that when the ram is shifted forwardly, the bucket 13 is thrust forwardly from the position shown in Fig. 1 and will be filled with material, and when the piston of the motor is retracted, the bucket will be retracted for a distance until the gear segments 13o engage the racks 13p, whereupon the arms will be rotated about their pivotal axes, swinging the bucket over the machine to, or substantially to the rear end of the intermediate base 12, so. that the material will be discharged at t-lie rear of the intermediate base into a suitable mine car or other receptacle to be referred to presently, Thenon a forward stroke of the rain, the arms andbucket swing downwardly and forwardly to the position shown in Fie. i, and then the bucket is thrust forwardly to receive another load.

As the arms swing downwardly to the position shown in Fig. 1, they engage suitable adjustable stops 13" which are supported by the castings 13l and as the telescopic arms and bucket are swung upwardly andrearwardly over the machine, the arms are a'l'- lowerl to telescope or shorten so as to enable the machine to be used with very little head i'oom, this being brought about by rollers 13S, one on the rear end of the forward part of each telescopic arm, these rollers being designedto engage cam surfaces 13t at the upper edge or eriphery of the castings 13l to which, as before stated, the arms are pivoted. I Y

The material when discharged by the shovel or bucket is preferabiy received into a mine cai' 14, which is shown in Fig. 1, this car beingdesigned to run up to the machine llO along the track rails 11.l When the intermediate base is in its iearmos't position, that is, when it is not extended beyond the subi base 10, the car will rest on the tracks 11 just at the rear ofthe sub-baselO, and as the intermediate base with the digging and conveying mechanism is moved forwardly along or relative to the sub-base, in order I that the digging member may be brought into working relationship with respect to the material as the loading proceeds, it is obvious that the mine car must also be fed forwardly or otherwise the material will rails or flanges lOfbeing so positioned, and

being only slightly above 'the track rails, that the mine car can be moved up and along these rails 10f on the sub-base to andv even forwardly beyond the position shown in Fig. l.

It will therefore Vbe apparent that lwith the` impi'ovenients which We have provided, the. digging and conveying'partlof the machine can be moved forwardly "without the necessity of advancing or laying the track l1 as the digging progresses, that is to say, a section of loosened material of considerable depth can be loaded and the machine can be operated for a long period of time without interrupting its loading operation to lay more track. Of course it will be necessary from time to time to advance the track, but only at infrequent intervals, andin fact, at much less frequent intervals, than with those machines wherein the digging and conveying mechanism can be moved forwardly as the work progresses only in conjunction with the supporting frame, truck or body which rests upon the track rails.

While the sub-base here shown is not provided with wheels for advancing the same, it can, nevertheless, be readily advanced, as the work progresses. When all the material within the reach of the machine has been cleaned up, with the intermediate base fully extended, the intermediate base will be retracted, the additional track section will be laid, and then the machine as a whole will be moved forwardly onto the same. If desired, this can be done by placing truck wheels or trucks beneath the sub-base, or the machine may be otherwise advanced. Furthermore, when the intermediate base is fully extended with reference to the subbase, as shown in Fig. l, it may be desirable to support. the front end of the intermediate base by any suitable supporting device which can be placed under the same, and which may or may not form a part of the machine.

It is to be understood that the specific details of the digging and conveying mechanism herein shown, that is to say, the details of the mechanism which is supported on the intermediate base, forms no part of the present invention, and that any other form of digging and conveying mechanism which may be mounted oii the intermediate base, and which may be utilized for the purpose of picking up and conveying material rearwardly may be utilized. In .this con- =nection itI is to be `understood lthat conveying-means of radically different form may bewutilized, such 4as a belt conveyor onto which the materialcanbe scraped by a hoe orequivalent device. c A A v .Having described our invention, ywe claim: l; In" a loading machine,: a sub-base adaptedtomest onv a track,j an intermediate base. supported on the sub-base. and movabley along the same, said intermediate base being.- stationarynduring ythe normal .operationof the machine, a digging-and conveying membermounted ontlieintermediate base and means for giving said member forward lilling strokes variable in length.V i

2. In a loading machine, a sub-base adapted to rest on a track, anintermediate base movably supported on the sub-base and adaptedto be projected forwardlyv beyond the same, said intermediate base being stationary during the normal operation of the machine, and digging and conveying mechanism supported on the intermediate base, and

comprising a conveying member adapted to be moved forwardly and rearwardly, and means for giving said member aforward lilling movement variable in extent with refer-A vence to the intermediate base.

n 3. In a loading machine, a sub-base having a track, a normally stationary intermediate base supported on the sub-base and movable along the track so that it may be extended forwardly beyond the sub-base as the digging progresses, and material loading mechanism supported on the intermediate base and having lmeans for conveying may terial from in front of thelatter to a rear point, said conveying mechanism including a device adapted to be thrust forwardly to receive a load, and means whereby it may be given forward filling movements of varying lengths. j 1

4f. In a loading machine, a sub-base hav- -ing means by which it may be secured to a track, a normally stationary intermediate base movable lengthwise thereon and adapted to be projected forwardly beyond the f same as the loading of material progresses,

and conveying mechanism supported on the intermediate base and having means for receiving material from in front of the intermediate base and conveying it to a discharging point, said conveying mechanism. including a device adapted to be thrust forwardly to receive a load, and means whereby it may be given forward filling movements of varying lengths.` Y

5. In a loading machine, a normally stationary sub-base, a normally stationary i11- terinediate base movable lengthwise thereon and adapted to be projected forwardly beyond the same as the loading of material progresses, conveying mechanism supported on the intermediate base and having means for receiving material from in front of the intermediate base and conveying it to a discharging point, said conveying mechanism including a device adapted to be thrust forwardly to receive a load,` and means whereby it may be given forward `filling movements of varyinglengths, and means for moving the intermediate base forwardly and rearwardly along the sub-base.

6. In a loading machine, a sub-base, a superstructure movable forwardly along the sub-base and having means for receiving and conveying material rearwardly, said sub-base having means whereby a receiving car may be run up on the sub-base as the superstructure is advanced.

7. ln a loading machine, a sub-base, a superstructure having means for receiving and conveying` material rearwardly, said superstructure being mounted on the subbase and movable forwardly along the same, and said sub-base having a track for a receiving car whereby the latter can be run up on the sub-base close to the superstructure as the latter is advanced.

8. In a loading machine, a normally stationary sub-base, a superstructure mounted on the sub-base and movable forwardly along the same as the loading of material progresses, said superstructure including an intermediate base adapted to travel lengthwise of the sub-base and to be projected forwardly beyond the same, and a laterally swinging material moving element mounted on the intermediate base.

In testimony whereof, we hereunto aflix our signatures.

FRANK BILLINGS. v ROBERT P. GREENLEAF.

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