US1691513A - Loading and dumping device - Google Patents

Description

Nov. 13, 1928.

l. E. BURKETT LOADING AND DUMPING DEVICE Filed April 2, 1924 2 Sheets-Sheet 1 A m QN g m m,

; www@ 5 Nov. 13, 1928.

l. E. BURKETT LOADING AND DUMPING DEVICE -2 sheets-sheet 2 Patented Nov. 13, 1928.

V LOADING AND -Vntnuunvo DEVICE .This invention relates tof excevatorwnd, more partioularlyl to ,a .distantly. controlled. scraper` hauling,- and dumping device adapt' ed especially'for use in Vconnection 'Witlrengineering proiects'involvingv the excavation of provide a device of the c haracterreferrefd to in which anordinary dirt s craperinayhe em;-

ployed to collect dirt or gravelfrom'anydesired point Within Ia deined area and convey and dump the' same at-:anyf point Withi'nzor outside the excavation or gradingareas, either toA distriloiitewthe ysame over ,sucharear or to dump it into snit-able yhauling vehicles forl re-V moval Witlio'iitrequiring theservices of anat; tendant laborer lat any point Within under excavation.-

Further objects' of my invention areffto provide a` device of the characterlreferredto" which will he simplegdurahle and inexpensive in construction, usefand'transportationr from place to place, in which an ordinary scraper may hereadily connected or disconnected at the will of the operator.

rlhe Vspecific .purpose of the invention Mto provide. mechanical means' for Idra-Wing,an

Ordinar;7 scraper forwardly along av linerom a variahly fixalole point, to lill thescraper and' afterward convey it Jconny.desiredpoint along lsuch linevo-r y ddumping,f to rprovide means ,for dumping the scraperatanypoint along the lineoi'itsforward iiioveiiientover the ground, to provide mechanical means 4for returning Ithe scraper hy 'draiviinqE it'bafckwardly for repeated refilling andatV any point or points falsongits lin-e of progres? sive movement over thesurfaceofthe ground, and to provide mechanical means vfor varying the fiXahlev point on 'aline fromlwhich the scraper is clraxvnforwardly and'hafcliivaitdly, withoutrequiring manual'k control or assistance for s0= doing@ `The invention will hel-first;hereinafter',more

particiilarly descrihedwith yreference to the the area f accompanying .drawings whichare t0 `be taken as apart of this specification, and then` point-4 e'd out inthe claim at the end-ottheA description. i.

In said'drawingsg* Fig.. l is a. v'pelyspective plan View of my device in position ,for use. illustrating Vthe fundamental arrangement of the variouselements and showing the meansr under ,penelcontrol fordrewng the Scraper forivr-dly Aand backvvardly, ,t he means for Varying the iXable point alongfaline; from Whsh i the SCIaP'QI is ,drawn frwardly and baclrardly and means ...for dumping ,the scraper. In this ViewA the ,scrapenis shown in loaded position .it isfdrawn toward the point fordupmping.. f

Fir. 2 wide @Isar-traiter @findevi@ illustratnee Convenientarrangement ,of

the "eroi'@lementsshewngthe powerfunit; Cable' .roven.andv an .inclinedsplatform :by meens'of'whlh the Semper amused t@ empty its load into a dump-carithe operating cables aeheid; pests with dead-manandbracel Shewllile thepiveteliarrangement .ofthe nul? alone'. a lille freni whidithewseraper.is'dr'awn ffzrwflrdly and ibackw-rdlyfmay.ben'ared .at WlllfL the Cables being tlagmenreril'y Shwvrn.v i)

Referringtothe drawings', in which like Y I'eferenemunerels .are used. to desienatefcor'f respondingf parts v .th'zrongjl'hout the y several Views, ...denotesn Ordinary Steam engineer locomotive, adapted under suitable `lever con# tatahhev cahledrums, 6, 7 and. 8, each of which ispiovidc'd with the usual dogland'raltchet locking means hrakedevices generally` and may be adequately braced by adjustable tension bars and suitablek guys (not shown).

Opposite the scaffold or tower 9, 4anchored posts 12 and 13 are fixed in the ground at any desired points and distance fromsalid tower c and from each other, said posts being rigidly secured in their respective places by means of anchor beams or dead-men 14 adjacently embedded in the ground, from which holding cables or brace ties 15 extend` to the posts.V

A pair of idling pulleys 16 and 17 are pivotally secured to the post 12, one above-'the other on a common swivel or pivotal axis, as shown in Fig. 3, thus independently adapting said pulleys toself-alignment with a cable passing thereover and readily permittingthe two parts of the cable under operative coni ditions to assume variable angles with respect to the post. Y

Av swivel block orv idli ng pulley .18' is secured also to the post 13 either directly or yinlto move along the span or length of said cable in either direction, the pulleyA 22 normally engaging the cable after the manner of an ordinarycarri'er or trolley, the pulley 23 engaging therewith only in caseof rebound or backlash. vA pull balancing yoke 24 is also prod vided on the block 2O by which one end of a pulling cable (to be hereinafter more specilically referred to) may be connected thereto.V `A backing line or cable `25 is securedat one end to and wound upon the drum 6,its other i or freeend vbeing passed over the uppermost "idling pulley 11 on' the scaffold and from thence to and over the self-aligning pair of idling pulleys 16 and 17 on the distantly anchored postl 12in the manner shown, after which it is passed over the pulley 21 of the travellingvblock 20-and subsequently to an ordinary scraper 26, to the rear'portion of which the cable is'permanently secured by any suitable attachment means.

To the forward end of the scraper 26, pref` erably by means ofV divided lchainfsections forming ayoke, the ends of which are secured to suitable reinforcing bracketed plates provided on either side thereof, one end of a pullingor hauling'cable27 is attached, said cable being passed overthe pulleyl() on the scaffold and having its other end wound upon and se'- cured to the drum 7, so that when Said drum is rotated so as towind the cable thereupon,

the scraper willbe drawn forward to scrape and load with earth and be afterward conveyed to the desired point for distribution or Y dumping.

A tension'controllable holding line or cable 28 is secured at one end to and wound upon the drum 8, its other or free end being shown passed vover or through an ordinary block or pulley 29, adjacent thescaflold, thence under f "the passage-way or track over which dumpcarts or other hauling vehicles are drawn to receive loads 'from the scraper, to and over a y similar block or pulley 3Q on the opposite side of such' passage-way, from which it is subsequently passed to and over theblock or pulley 18 (above mentioned) on the distantlyanchored post 13 and finally to the vtianelling -block or cable-carrier 20 with which'it is Connected by means ofthe pull-balancing yoke 24 as shown in Fig. 4; for holding said block normally stationary under tension of. the backing cable. l I' should a be desired td hda1 thel Medway Y from the excavated area, rather thandistribute it for grading purposes, an inclined runway 31 may bevemployed, up which the scraper may be drawn'to upset and unload into adump-cart or 'car32 drawnintoposif vtion thereunder where itfwill receive the load.

'The operation of my improved combined -f scraper and dumping device is as'vfollowscy Y The scraper 26 is drawn backwardly to the point (on a line from the travelling-block 20) at which it is desired to begin loading, yby

winding the backing cable 25 upon its drum v 6, simultaneously'allowing the "drum'7 to 'run free'andlspend the pulling or hauling cable 2,7 as necessary. When the scraper has lill thus been drawn to the point of loading',4

brakes. areapplied to the drum 7 andthe ratchet locking' means should then be setto prevent slippage of the drum, while drum 6 snould be stopped and set to run free Yand spend the. backing cable 25 as necessary. The drum 7 is then caused to rotate and wind the pullingor hauling cable 27 thereupon, thus llO drawing Vthe scraper 26 forwardly,Vv the latter beingvso balanced that the initial pull in a forwarc direction will cause'it to tilt andV scoop upv a load of earth the weight ofwhich in turnV shifts the center of gravity -of the scraper and causes it to tilt backward to con'- veying or hauling position, in which yposition it rides on a heel plate provided thereon forV such purpose. Continued pull of the hauling cableas it is wound Vuponits drum causes the scraper to be conveyed (along a linefroin the travelling block20)'toward the tower 9-to the point for distribution or dumpfmg. In the particular arrangement of the apparatus,v

as shown inFig. 1, theloaded scraper-'is thus drawn forwardly `onto and up the inclined platform 31, at the upper. end of which it is f automatically upset by reason of a precipitous declinein the platform surface, causing the scraper to discharge its load into a Waiting dump cart or car.

Simultaneously with the dumping of the scraper, rotation of the. drum 7 is interrupted and brakes are applied to prevent slippage after which said drum is set to run free and spend the hauling cable as necessarygwhile drum 6 1s again rotated to draw the scraper backwardly toposition for reloading in the Vmanner hereinbefore described.

lVhen it is desired to shift the point along a line from which the scrap er is drawn forwardly and rearwardly to dumping and loading positions, respectively, it is necessaryv only to move the travelling block 2O in either direct-ion along the standing cable 19. lioint `trom which it is desired to continue operations lie between the anchored post 13 and Vthe then present position oi' the block 20, the

drum 8 is caused to rotate so as to wind the tension or holding cable 28 thereupon, thus drawing the block 2O along the standing cable 19 toward the post 13 to the point desired, the backing cable 25 being simultaneously al lowed to spend, after which the brake and ratchet are set on the drum 8 to prevent its further rotation in either direction. Should the point from which it is desired to continue operations lie between the anchored post 12 and the then present position ot' the block 20,-

the drum 8 is first released and then allowed to spend its cable L8, while the backing cable 25 is wound upon its drum, thus drawing the block along the Cable 19 toward the post 12 to the point desired, while the scraper is sfmultaneously drawn backwardly to loading position. The block 2O being thus moved to the desired point, the brake and ratchet are again applied to the drum 8 to prevent its rotation in either direction until it is again desired to shift the line of scraper operations.

It will, oil-course, be understood that while in the illustrated form orarrangementof my improved excavating apparatus or device, the scraper is adapted successively to dump its loads from the inclined platform into waiting dump carts or cars, it may be readily arranged to dump or distribute its loads any point or points along its variable lines of operation, without.

departing from the spirit and scope ot my invention. An overhead tension controllable or stationary standing cable and trolley-carrier of any suitable type, such as shown and described, for instance, in my U. S. Patent No.

Should the 1,537,580 granted May 12, 1925, for improvements ineXcavators, may be conveniently employed for the latter purpose, the inclined platform, if desired, being wholly eliminated. Since various other changes in the details and arrangement of parts may be made without departing from the spirit and scope of my nvention, I do not desire to be limited by the appended claim, vto the specific construction and arrangementshown and hereinbeore described.

Having thus described my invention, what I claim as newand desire to secure by Letters lPatent oiI the United States, is:

In a loading and dumping device, the combination ot' a scraper, pulling cables attached Arespectively to the front and rear of said scraper and secured totake-up and let-out devices located at a predetermined point for drawing the scraperforward and backward; a 'standing cable extended at a substantial angle to a mesne line of movement of the scraper between iXable anchorages remote from said take-up and let-out devices; acable carrier mounted to move along said standing cable from end to end ofthe latter and having a pulley over which the backward pulling cable or the scraper passes for drawing the latter to its limit of backward movement, a pulley connected with one ot said anchorages over which said backwardpulling cable directly passes from the cable carrier to its take-up and letout device', a holding cable having one yend lixed to the cable carrier and its other end se-I cured to a take-up and let-out device at said predetermined point of control for holding and shifting said carrier to the point along a anchorages over which said holding cable passes direct from said cable carrier to its take-up and let-out device for holding the carrier normally stationary from a point adjacent one limit oi':I the latters movement along scraper, substantially as described.

n In testimony whereof I affix my signature.

n IRA EDWIN BURKETT.

line trom which the scraper movement is de sired; a pulley connected to the other of said

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