US1447275A - Loading machine - Google Patents

Description

Mar. 6, 1923.

F. BILLINGS ET AL LOADING MACHINE 4 sheets-sheet 1 jwezzzmzst 4. QM d 4 sheets-sh g? 1 2.

F BILLINGS ET AL LOADING MACHINE Filed Jui 28 1919 Max. 6, 1923.

Mar. 6, a Ff. BiLLiNGS ET AL j LOADING MACHINE Filed July 23, 1919 4 sheets-Sheet s 2/" E .5f I o j 26 m1 4g county of Cuyahoga aiid'St'a'te'ofOhio, have PatenEedMerQ-Q 1923 i Nr-r Q E LRANK isinniiiesnnnnosnnr r. ennn'nnn' r, 'or oiliivnnnnnor rio; SAID GREEN- I, :rini r ass c von rosi niai iniiies, I

iii-Diem ivifircnrnn Application filed July 2 8,

To all whom e'tma-y concern f,

Be flit known that we, FRANK of Cleveland, in" the 'county of Cuyaho'ga and" State of. Ohio," a'nd Cleveland, iii the invented a ce'rtainnew and useful Improvement. in Loadinglvlachinesjof which the following is a full, clear, and exact descrip tionf J 1 Y Y a *1 This invention relates to loading machines ofwliat may be termed the hoe type, such as illustrated in patents granted to FranlrBillings,"one of the co-inventors herewithQNos. l,095,786, 1,265,729,and 1,265,730, and in a patent granted jointly to us No/1,217,687, mach'ine's off-this type includinga conveyor suit ably supported by a trucker 1 wheeled tt'inine-and a hoej'carriedi by a ram or hoe support mounted" for forward; or rearward reciprocating movement and for-' swinging movements vertically and laterally "so that thehoe'c'an' be actuated to reach material at the front or at thesides of the machine and scrape the same rearwardly up an inclined apron atthe fiont of thetconveyor frame to the conveyor, or a suitable open bottom hopper positioned over the forwarcl 'end of the conveyor.

The principal object 'ofthis invention is to improve the efliciency, and at the same time to provide. a muclrsiinplified machine especially by reducingthe number of actuating parts required to givethe hoethe desir'edmovements. v v. 7 I

The, present improvements relate vin one aspect" of the invention 1 tov the construction otan apron at the front ofthe conveyor 'jfra ine, the apron in accordance with our present invention being stationarily mounted withrespect tofthe lateral movements of othe'hoe, but so constructed thatlmaterial may be scraped up along the same to the conreyor or receivinglhopper, irrespective of the angle thatthe' arm makes w th respect to F the central longitudinalaxis'ofthe machine. In another aspect the invention relates to certain improvements in the actuating mechanism for the hoe and ram, including certain guides which control the path of movement or" the hoe as it is retracted, and which cause tliefran on its outward stroke to be elevated w thout requiring a special BiL iNcs and ROBERT. P; GREENLEAFCit1ZHS of the United States, and residents,-;respect ve1y,

1919.: Serial no. 313,947.

motor for iinparting'the vertical swinging or :elevating=,movement.-- r. 'lheiriVentiohmay be further briefly suinmarizeduas'f consisting in, certain novel details ot construction and in certain combinations 1 and arrangements -of parts which will 'be'describedin the specification and set forthin the'appended claims. 7 i

: In the. accompanying sheets of drawings,

wherein we have shown one embodiment of our:invention .whichoperatefs with high efiiiciencyyFig. 1 is a side viewof the machine, with'the ram extended and ready to .be low{ ered to sinlrthe hoe into the material to be scrap'edfup onto the conveyor; Fig. 2 is .a

vieWlOokiIig at the opposite side of themachine, withthe ram wholly retracted, certain removable-portions of the sectional conical apronfat'the front of the inachinebeing removed; Fig.3 is a top planiview o't' the same with'the parts in the positions shown in Fig.3; Fige is. a sectional view substantially'along the irregular line {l-4 of Fig.1 2;

Fig; 5 is'a front view of the machine; Fig;

:6 is a detail. sectional view taken through the outer ram, member substantially along the line 6-6-0f-Fig. 1; Fig, =7 is a view similar to Fig. '2, showing'the ram extended aiidpartially lowered tothe position shown :by full'lines in Fig. 1; and'Fig. 8 is a horizontalsection through the brake cylinderand controlling valve.

The'machine includes a suitable wheeled i frame ortr'uck .10 designed to run along a track whichinaybe a track in amine, since this inachine "is adaptedfespecially for use as a. loading machine 111i mines to load loosened material such as coal and ore into.

mine cars. .On the truckor vwheeled frame '10 is supported a superstructureincluding a-conve or frame 11 carrviiw a suitable end lessconveyor '12, which extends from the lower 'front part of the machine upwardly 'andre'arwardly to a height such that mine cars orother receiving elements may be run underneath the discharge end of the conveyor; The conveyor and-the frame may be parts, and the conveyor may be operated in any suitable manner such as by a motor 13,

shown in 2, suitably connected by gearing and chain and sprocket driving .niecha IllSIliWVlllCli need notbe described in detail,-

to one of the drums about which the-endless conveyor travels.

The frame 11 of the superstructure has a forward extension 14 above the front end of the conveyor, and on this extension there is pivoted by means of a suitable king bolt or equivalent device 15 (see Fig. i) a turntable 16. This turntable which may be supported by rollers in addition to the kingpin so that it may swing or turn from its center position about in either direction, can ries a housing 17 having hollow trunnions 1 8 which extend laterally outward into, and are journaled in bearings 19 of the turntable. This mounting of thehousing it will be imderstood; enabl s the housing to swing vertically. Mountedto reciprocate in this housing is a two-part telescopic ram. such. as shown in some of the prior patents heretofore mentioned, this ram being composed'iof anouter or primary part 20, and an inner or secondary part 21, the former ;being mounted directly in the housing and 4 the latter being carried by the former or .primary part and adapted to travelinwardly and outwardly at twice the speed of the latter. To the forward end of the secondaryor inner part of the ram is'adapted to be secured a hoe 22, which scrapes the materialup' to the conveyor.

The outer or primary part of the ram'is as shown'in Fig 4, a box like structure of rectangular shape supported from the [housing by rollers 23, and by a shrouded pinion 2a, the latter being mounted on a motor driven-shaft 25, which in this instance is rotatably mounted in the hollow trunnions of the housing 17, and adapted to be actuated by any suitable reversing motor 26 carried by the turntable. In this instance the motor is connected by a worm and worm wheel gearing 27, shown in Fig. 4, to the sha'ft25. The shrouded pinion 2a assists in supporting the primary part of the ram, and it reciprocates it forwardly and rearwardly through the medium of a rack 28 extending lengthwise ofand carried by the ram member 20. 1 The secondary or inner member of the ram: is supported from the outer or primary member by rollers 29, and by a shrouded pinion 30, carried by the ram member 20. The .inner ram member is driven at twice the speed of the outer member by this shrouded pinion 30 which engages a rack 31 .(seeFig. &) carried by the inner ram ;member, and also engages a stationary raclr 32 carried by a forward extension 33 of the housing 17. As the details of construction 01 the ram are not material to the present-invention, andas the manner in which the two: parts ofrthe ram are actuated one from the other, is .substantiaily like that disclosed insome of our prior patents before mentioned iurther .d'escription of the construction and operation is deemed to be unnecessary.

Coming nowto a artinwhich, the inventioni's more directly involved .we provide novel devices for controlling the path of the hoe as it is moved inward and outward, as well as for elevating the hoe andrama'sthey are moved outward without requiring an elevating or vertically swinging motor utilized in the constructions shown in all the prior patents heretofore mentioned. To control the digging depth'and the pathof: the hoe as the ram is retracted, wenroyide on the outer ram member 20, a guide or cam 34, which is shown by dotted linesin Fig. 1, since thisguide isgonthe .gtar side of the ram member. as the same is .viewedin thisfigure. When the ram is beingretracted'thei lower face ot the guide, is engaged by a roller 35,

which is carried by the turntable, the guide and roller being so positionedthat the guide travels over,the roller .onlthe retractionof ingsoshapegd that the point of thehoeis re quired to travel in a substantially straight horizontal. plane. As willjbe seen by Fig. 2, the roller isjournalled in a member flti, pivoted at 37 on theturntable, the roller supporting member, 36 resting on the top of an adjusting screw 38 (see l igs. Qand 6), by.-which tlie height orpnsition of theroller with. respect tolthertilrntable can be varied yate the ram and lthe-hoefor a portion of the .ontward; movement and; 1n addltion we-provide a form. of clutch .or Ibrake which Lactson the hous ng so to cpnst'rain the ram to .move outward at a giveninclinationlfor the 85 the ram, andthe lower face of this guide beremainder of the outward movement, andat" ,the same .tim eienablesthe to be dropped at; any desired. point f1n,the outward move- ,ment. Tgqtlll-SGIIClZWG PIOYLClG on the outer .ramfmember 20,, on, 'the' near side thereof as the same lsvlewed inng. uids o1: cam 39,1which co -operates] with a ler 40. likewise; .sa jicrtea-z by p the turntable; 2 is i will .be..seT v E afitth 1911 2 is arr ed. y a

horiz ontall stud 4 1 slighblliflQnOuritd axially I in a housing 42, containing a -spring 43; which, tends topress, the 'io ller inward, i. e...

, na d heifa'c Of he m mb -The cam er guide lower cam face which ,isdes gned tolfrun cover this roller,

and at its. rearaend ,ithasa cam face or taperdesignated [iheparts are so dis- .posed thatonthe retract on of the ram, with the I ram inclined. downwardly, the beveled face 39 of the cam member 39 engages the side of the roller 40 pressing itfoutward'and so "that the side face of the cam member may slide past the roller for a distance. Then when the ram reaches about the-inner limit of itsmovement the face of .the roller. rides oil the face of the cam member, and'by the action of the spring 43' the roller is snapped under the lower edge or-face of the cam member, the latter being'so shaped-that as the ram starts on itsoutward movement this cam. member elevates "the ram, causing the point of the hoe to travel diagonally upward as indicated'by the dotted line A-B. When the 'hoe reaches the point'B, the cam member rides off the roller, but neverthelessthe hoe continues outward'y'andupward at substantially the same inclinationaswhile traveling in the path A B, this being caused by the provision of; what was heretofore termed the :brake member acting on the mounti'ngfi This brake member is the form of a fluid cylinder e4, adapted to -be.provided with a quantity of liquid "such as oil. This cylinder is pivotally mounted on. the turntable at 45, as shown in Fig. 2, and it contains a piston 44*;pivotally connected to the housing at 46'. At the side of this cylinder is a by-pass chamber'a'r' having a valve 47 adapted to be manually shifted by the operator by a handle 48. As shown in Fig. 8, the construction is such that if the by-pass valve 47 is in a position such as to prevent passage of liquid from one side of the piston to the other, when the cam member 39 leaves the roller 40, the housing is held against rocking movement and the ram continues outward at the inclination impartedto it by the cam member 39 but when'the valve 47* in the by-pass passageway is shiftedso as to permit the by-passing of liquid the braking or holding action'of the liquid in the cylinder is stopped and the ram'is free to drop so that the hos will be sunk into the material to be moved rearwardly-or-gtoward the machine on the retraction of the hoe. It will be obviou'sfthat the operator can swing the lever or handle 48 to shift the by-pass valve so as to cause theramand hoe to drop in the mannerjust stated at any point after the cam member 39 leaves the roller 40, it being thus possible for the op-- erator to cause the ram to have any desired outward stroke and'to lower thehoe atany point by stopping the motor 26. and shifting the bypass valve either simultaneously or successively. H

In addition to the reciprocating and vertical swinging movements which are impart' ed to the ram and hoe, provisionis made for turning the turntable about the airisfof the king pin so as to swingthe ram and hoe laterally in order that the hoe may reach and scrape up to the conveyor material located at the sides as well as directly in'front of the machine, as is customary in machines of kind. This .movement may be partedin any suitable manner, but in this instance the -motor 13 is utilized for this purpose.

Fig. 1,-that there is provided at one side .ofthe .conveyor frame a. vertical shaft 49,

provided at-the top with asheave 50, which i when rotated in one directionor the other, turns the turntable through the medium, of

a'cable indicated at 51 in Fig. 3,-whichcable" Itwill beseenby reference -to passes around this sheave, around guide sheaves 52,. shown by dotted lines in Fig. 3,

"and -z'around the flanged periphery of .the turntable, 1 Theshaft 49; maybe rotated in 1 either direction by one or the, other of a pair of bevelgears 53 which may. be individually clutched to the-shjaft49 by suitable clutch controlling mechanism, 'not shown, and adapted to be shifted by. the operator while he is stationed on the machine. These bevel gears are designed-to be driven'in opposite the'frontend of the machine, and it is inthe .novel construction of the apron that an important part of. our present invention resides. 1

Heretofore it has been customary, or at least proposed, toemploy an apron in the form of a pan or trough which projects ,in fixed position Idownwardly and forwardly at" the front endof the machine. shown in the three Billings patents viously referred to. In using an apron :of this kind it isnecess'ai'y when the. hot isreachingmaterial at the sides of the machine a and hoe before the materialcan be scraped:v I

up "the apron to' the conveyor.

Itflhas been proposedalso to employ. an

This ii to bring the material laterally 'inw'ard in apron-mountedso that it may swing; laterally with'the ram .so. as to always be in 'position to receive the material -withoutjg swinging the rain backto the center of the inachihe, irrespective of .theangle that the r'an makes with respect'to the center line of the machine-while it isbeing retracted.

'In accordance with our present invention we provide a fixed apron which is so con- 'structed or formed that the hoe can scrape materialup the same to the conveyor or hopper irrespective of the position'of the ence character 55, is conical, or ratherfifrus.

tro-conical in shape, and when in position ram in its entire range of lateral swinging movement which 1n this lnstance is about "machine; the hbe srape he matiial 'like the" hoppef'AL (if '01 ,1,277,estgp'ievie sl ref r U The api'on'egxtentling a bbhfitheironhpart 1 in one part wenlfl-ser 'eTy finf terieie tv'ith the' novnients qfwh e s pizflly f when "conveyed i through" ipe tunnels; i a'nd we therefore term theerp on in three sectibnSHneludingia fixed"election';5o*,fflintly n in"-'-fr'ont jo'fthe machine, and: two .removz tble sections 55," 55; at the 's'siide hof fthe f-"fixed se'cti'o'n anc1 ednst-it11ting the" pontio'ns .which project laterally out; from the fnont side" portions of the machine. All three sections have Warped up-pen or Twbrkin'g suriftces fm ining pn rtion'sgdf a conicil miyface when the' nai'tsflz 're zissemhledi v The; fixed' *ancFremovable pants of hthe apron are preferably divifled along pamllel linesg inflieated' "511311552 the distanbe betwen Which'beingTin this instan'ee somewhat less I than-the ever-e11 widthvof the mahihe; It 'is imrhaterialtfio Ou'r 'in'ventipn asrtohow thejfixed anfl remo vahle pofiti ofthe apron are connected tp'gethe bfitweprefrthat the fixed'portiomibe' provided-11911;; its v side-edges withfsecketed' attiichingfplates f shown at 55 2,1(th'e irempya ble secp member, its the fer the 15am "on f n b pid fit iki iw-Yi m in 1 admgim chine thev character PB; t', egram aaaited 1 ie zepmg h e 16am gap and renewceive pins on the inner edge 5150f: he II1OV able sections I of? the aprdn, and? fugtlien e prefer that the sides" f the mQQhineZbgprovided With notches or. apron hQOksQ55 Fig. Machined to receive pi1 1s ;55 at the nppen. ends of vertieal'Wing$ 55 ;xiithgyhiqh ithe i v iqg lfm j ted rear ends f the ya fii fi .7 w 5; v 3%? 1 5 5 3 ifili tl yi'i il the apron areprovided.5- ith thi segngtyum thggf al rl llggng gldlgfifiea in: the h'gnslng i fpr tion the removable p01fti9nsof; .the pmn reclprocatlng"moveinent, a mOfO can be readily lifted. fnornfplgce when: the machine isto befmQYedff fQm QDe pgint to the other, andi'theypanbe, a eagily lges tfp red to working positionflse asit ne ti tntej cpn- I e tinuzitions ofthe; eentrz 'lgfizge 13bit of z the t aiii'on. 1M h that thei 0 housin It will be obvious that oulfri niiegf qn hgt n 7 as to the rain ,QntrQllingg' d tattlgtfilpggllgandled;-""

6. In a machine of the character idescribed, a support, a housing mounted on the support for swinging movements verti cally, a ram carried by the housing and;

ram, means for swinging the ram vertically and for holding the same at a fixed inclina tion as it is moved'outwardly, vand means underithe control of the operator for per-' mitting the ram to drop'at any desired point in its outward movement. m

7. In a machine of the character de scribed, a support, a housing mounted on the support for rocking movement vertically, a

ram mounted in the housin for -reciprocat ing movement and adapted to be provided with a scraping-hoe, a motor connected tothe ram for reciprocating the same, 'means for causing the ram to be elevated at the start of its outward movement, and a brake connected to the housing forfconstrainingi the ram against swinging movement until the hoe reaches a predetermined point selected by the operator. 7

"8. In a machine of the character de scribed,a support, a housing mounted on the nected to the ram for reciprocating the same, and means comprising a hydraulic brake connected to the housing and to a fixed part and controllable by the operatorfto hold the ram elevated as it is moved: outward,

and forvpermitting the ramto be lowered when the hoe reaches a predetermined or desired position. i 1 p f 9. In a machine of the character described, a support, a ram mounted thereon for reciprocating movement and for swinging movement vertically, a motorconnected operating guide "members for causing the ram to be elevated as 1t-1s moved outward,

and additionalmeans for holding the ram elevated independently of said guide members; v

10. In. a machine of the character described, a support, a ramcarried thereby and mounted for reciprocating movement and for swinging movement vertically, a

motor connected to the ram tor reciprocating the same, co-operating guide members, one carried by the ram, for elevating the; ram as it is .movedthrough a portion of its Y gscribed', a frame having a conveyor, a ram qoutward stroke, and means comprising a hydraulic brake for holding the ram elevated for the. remaindery'of the outwardv movement of the ram, and. for permitting the ram to be lowered when the hoe reaches a predetermined'ontward position.

' 11, In a. machine of tle characterfl'de mounted" on the frame for reciprocating -66 movementsand for swinging movements in-'-= eluding alateral movement-to 'either'sidefof the machine, a material scraping g hoe ,carried by the ram, and a frustro-conical apron extending vabout the .frontof the machine so that the vhoe may scrape material up the same to, the conveyor irrespective of the .angle'that the ram makes with the. center line of the machine when the ra'm is re 1 tractedfi v p 12,111 aloadingfljmachine, a framehavlng a -material receiving-fhopper at the lower a. front "portion thereof, a frustro-conical.

apron extending about the front of the machine around the upper edge of the hop: per, in combination with a hoe, and ahoe "supporting member mounted for reciprocating movementfand for lateral" swinging movementto either side ofthe machine.

13. In a machineotthe-character described, a frame, a reciprocating and later-" ally movable hoe for scraping material rearwardly' toward the frame, and a sectional conical hopper. extending about the front part of the machine so that the material may be scraped upwardly along the same irrea spective of the angle that the ,line'ofmovement of the hoe makes with the-center line of the machine when the hoe .isretracted.

14;. In a machine of the character described, a frame, a reciprocating and laterally movable hoe 'and hoe supportlfor scrapand 'a sectional conical hopper extending about'the front part of the machine so that in'g material rearwardly towardithe frame, to the ram for reciprocating the same, co-

ice

the materiallmay be scraped upwardly along the same irrespective of the angle that the hoe support makes with the "center line of the machine when the hoe and support are .retracted, saidasecti-onal hopper comprislng a fixed ,middle portionat thefr'ont of the machine, and removable lateral por:

tions p In testimony whereoi r we hereunto afiix our signatures,

. FRANK BILLiN g i I I RQBVERTHR AR

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