US892538A - Excavating-machine. - Google Patents

Description

iiniriin .STATES PATENT onirica. L

WILBUP NATHANIEL MORRILL, OF LOUISVILLE, 4KN'IIUCKY.

EXcA'vA'rmG-MACHINE.

No. '892,538V

Spcification of Letters Patent.

Patented Juiy 7, 190s.-

Application led April 11, 1908. Serial No. 426,421 I To all whom it may-concern: i Be it known that I, lViLBUR i'A'rHANIEL A MRRiLL, la citizen ofthe. United States, r e.

siding vat Louisville,-Jefferson county, Kentucky,-have invented 'certa-in'new and useful Improvements in Excavatiiig-ltiaf-.hines, of which the following is a specification.

This invention belongs to that class cliencavating apparatus intended -niainly for use .in sewer construction or pipe-laying work,

and lesgned to excavate t ie dirt in'advancfe of the sewer or pipe work and to back-filltlie excavated in aterial over the comple/ ted work.

My present invention aims to iin Y reve niacliines of this class by renderingt iein more 'eficient' and elastic in their' operations, that is to say, better adapted for doi'igtheir work eoiioinically' and -under the varying conditions apt to be met with in practical operatimisf :My invention will be'readily understood from the Following description taken in con-l nection with the accompanying drawings in which:--- i' Figure 1 isa side elevation ol" an excavating machine exempliiying my invention, the. trench appearing inverticalilongitudinal section: Fig. 2 a planet the machine: Fig. 3 a rear elevation ol the excavator' proper, the trench appearing in vertical transverse section: Fig; 4 a vertical transverse section 'of theiconve ine` car and its track:

and Fig. 5 an enlarged reproduction 'ol' the central por tion of I* ig. 4;

vIn the drawingssml, indicates a' pair of rails forming aloiigitudiual track straddling the location of'tlie'trench: 2, the. material to -be excavated at the heading of the trench:

3, the complete(l-portion of the trench, shown as being-protmited iii'tlie usual manner by sheet piling: 4, coi'iil'ileted'sewer work in the trench: 5, back-filling over completed portions of the sewer work: (i, a'locoiiiotive cxcavating car iiiouiited'to run on the track rails: '7, a' jib turntablecrane mounted to turn on the excavating car: 8, motive power machinery carried by the crane for operating it and its car: 9, aclamshell excavator suspended vfrom the jib of the crane: 10, along conveyor i car, ol,- skeleton construction, mounted to travel on the track to the rear of the excavating car: 1l, a` longitudinal series of horizontal rollers supported by tlieframework of the conveyor car with their axes parallel with eacl1 othcr and` transverse tothe line ofthe track: 12,'two longitiulinal series where lconcave or gutter-'like form: A154, the rear end trench lwill permit. heading of the trench will be excavated by the clamshell and -hoisted aud delivered into the hopper of the pulvei'z'er which, in turn., delivers the material to the gutter-.shaped of rollers carried by the frame-work ol' the 'conveyor car above the level of the rollers 1 L,

therolls 12 being arranged iii pairs, tlieaxes of the two rolls-of apair declining inwardly:

413, an endless conveyor belt engaging rolls at `eacli end of tho`conveyer car, the lower lealI of this belt ruiming upon the rollers 11, and

its uplper leaf ruiming upon the rollers 12 )y thejupper leaf of the' belt is given a of the conveyer ear and belt, 'thisend `projecting, as a cantaliver, rearwardlyY beyondthe rearwheels ot the car: 115, a pulveri'zei mounted on 'the front end of .the 'conveyor car and arranged to diseharge upon the front upper leaf of tl-ie'coriveyer bell', which belt conveys' the material rearward-ly and backfills it iiito the tren'eli over the completed sewer work.

Were-working normally a'id the excavating and sewer building and back-lili'iiig could advance uniloi'n'ily. ,But if `(',oi-idilions 'arise iii which the sewer building, and consequeutly -tlie back-filling, must be delayed, the.

exeaii'ating must be proceeded with, tlieexcavated material in such case being deposit ed at the sides of' the trench.

iii desired, be uncouplcd .from the cx avatiug car. suined orhas caught u then the excavated materialdeposited att ie sides of llie trench Vmay be pic (ed up by the clamshell` and delivered to the )ulverizer to be 'conveyed baek bythe. belt ain delivered into tlietreiieli over the completed work,

' ln Fig.- 1 the apparatus is illustrated asexcavating between the excavating ear aiid'tlie conveying ear, but the 'clamshell may work ahead 'of the excavating ear, its loads being The Work of the apparatusl would thus .proceed regularly il e\'ei \flliiiig 'lndei these coib- 'ditions the conveyor cai' willbe idleaiid may,

lrVhen. the sewer-building has been re` then swun around and delivered to the pulverizer. ien conditions arise not permitting all excavated material to be back-illed then the clamshell may deliver its loads to -Wa ons alongside the trench. The clanishe l may alternate in its working in advance i of and behind the excavating car so as to provide facility for the proper and gradual placing of the sheet piling. For instance, the excavatoi' may dig for some distance, working either to the front or to the rear of its car,

A carrying the work to such depth as first calls for the placing of the sheet piling, the excavator then returning to perform the deeper Work Where the sheet piling has been already placed, and later returning to the more advanced part of the trench.

I claim:-

1. Excavating apparatus comprising, track rails at the sides of the proposed trench, a locomotive excavating car mounted on said rails, a turntable jib crane mounted for rotation'on said car, a clamshell excavator suspended from said crane, and motive power machinery mounted on said car for actuating the car and crane, combined substantially as set forth.

`end of the conveyor car and adapted to discharge upon the forward end of said belt, motive power machinery' mounted on said conveyer car for actuating said belt and pulverizer, and detachable connections between said locomotive car and conveycizcar, conibined substantially as set fortlr4 3. Excavating apparatus comprising, track l l l eeasse -rails at the sides of the proposed trench, a

rails at the sides of the proposed trench, a

long conveyer car mounted on said rails, a l

longitudinal series of transverse rollers carried by said car, two longitudinal series of inwardly declining rollers carried by said cars above the first-mentioned rollers, an endless conveyer belt having its lower leaf supported by the iirst-mentioned rollers and having its upper leaf supported in gutter form by the upper rollers, an excavator in front of said car, and motive power machinery for actuating the excavator and belt, combined substantially as set forth.

5. Excavatingap aratus comprising,track rails at the sides o the proposed trench, a long conveyer car mounted on said rails, a longitudinal series of transverse rollers carried by said car, two longitudinal series of inwardly declining rollers carried by said cars above the first-mentioned rollers, an endless conveyei belt having its lower leaf supported by the first-mentioned rollers and having its upper leaf supported in gutter forni by the upper rollers, an excavator in front of said car, a pulverizer carried by the front end of thc car and ad aptcd to' receive material from the excavator and discharge it upon the front end of the u )por leal' of said belt, and motive power mec lanisin for actuating the excavator and ulvcrizer .and boli', conlbined substantiafiy set forth. i

Witnesses:

HARRY A. Bunch', ALFRED li. Couric.

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