US932857A - Excavator or dredger. - Google Patents

Description

R. GLOGNER. EXGAVATOR 0R DRDGEB..

APPLICATION FILED HAY 7. 1909.

llll l l l l l ll lll ||||||il r R. GLGNER. EXCAVATOR 0R DPJDGERA APPLICATION FILED MAY 7. 190s.

932,857. Patented Aug. 31, 1909.

4 SHEETS-SHEET 2.

www

745% /uz @MAMA/f6@ 07 R. GLOGNER.

EXCAVATOR 0R DREDGER,

APPLICATION FILED MAY '7. 1908. v l 932,857'- Patented Aug. 31,1909.

4 SHEETS-SHEET 3.

of at?K av @MU/n MQW? R. GLOGNER. BXGAVATOR'OR DREDGBRA APPLIGATION YILED MAY 7. 1908. 932,857, APatented Aug. 31, 1909.

4 SHEBTS-SHBET -l.

@MM E'm /MML ROBERT stomme, oF .c naato'rzrammw, GERMANY.

nxc'ava'ron on p'nEnGna.

Vs peciication of Letters Patient.

Patented Allg; 31,4 v11909- application med may?, 1911s. ,serial No. 431,513.

To all lwhom t may concern:

Be it known that I, RoBEnrGLoGNER, engineer, residing at Charlottenburg, in the Province of Brandenburg, Germany, have invented certain new and vuseful Improvements in or Relating to Excavators or Dredgers; and 'I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art lto which it appertains to make and use the same.

This invention relates to an excavating device or dry dredger which differs from the-well known apparatus used for the same purpose in that the excavating tool is not utilized at the same time for transporting, that is to say, conveying the said earth from the point of excavation to the transport carriage, but by a separate continuously Working transport or conveyer apparatus being provided for the purpose, so that, since the excavating tool is working also in a continu-v ous manner, the excavation and the conveying of the excavated material take place 11n a continuous manner.

Another novel feature consists in the special shape given to the excavating tool which makes it possible to excavate a thick :layer at the outset, this leading not only to an extremely increased output, but also to a reduction of labor.

A constructiona-l form of the apparatus is shown in the drawing in Figure 1 in front elevation, i-n Fig. 2 1n plan and Fig.'3 in side elevation. Fig. 4' finally shows diagrammatica ly a second construction of the excavator i side elevation. y 0n a truck y2 traveling on rails l, are arranged a-t right anglesto ,thev direction of the rails '1, rails -3 on which moves a second truck 4. On| the said truck is mounted 'a bracket or standard 5 carrying a driving spindle 46 about which swings 'as a double jibf-rame 7, the branches o which -carry at their ends 8, 8, 'by means ofbeanings, a spindle or pin 49 on which is mounted a pol-yvonal whee 10. To each Iface of the said w ee'l is secured a dredger bucket 1'1, so Atha-t the polygonal body 10 forms, with the buckets 11 a bucket wheel which, as will fbe seen from Fig. 1, constitutes t-'he excavatin tool. Thev said ibucket wheel is driven 1n the direction ofthe arrow I by means of -two chain ivot a.

wheels 12 mounte on. the pin 9, the-diagranunatica'lly indicated' chains 13, and the chain wheels lLt-mounti ed on the spindle 6. On the platform of the truck 4 is mounted the driving motor l5 as well as the necessary gear or transmission apparatus and a winch 16. On the platform of the truck 4 is finally mounted a jib 17 supported by ties 18 and carrying at the end a chain roller 19. Over the said roller travels from the winch drum 16 a chain 32 which, by means of a shackle 20, engages with the end of the jib-frame 7, so that the end of the ji-b .and with it the bucket wheel 10 11, can be raised and lowered again in the direction of the arrow Il by means of the winch, the said wheel describing then a circle about the spindle 6 as the center.

The bucket wheel is capable of detaching earth from the ground but not of carrying it away or conveying it linto the trucks intendedv {or transport. To that end, there is rotatably mounted o n the spindle 6 as axis, a second frame consistinglof longitudinal 'beams 21 carrying `at their ends bearings 22 n adjustable linslot's, for a rol-ler 23. On the spindle 6 is secured a roller 24 of the same s1ze. Over these two .rollers or drums pass a number of endless cables 25. Moreover, over the rollers also passes a wide endless transport band 26 which is supported by the cables 25 at points not supported by the rollers. This transport band is, thereforedriven by the spindle 6 at the same time as the =bucket wheel. kBy moving the bearings 22 by means of the screw spindle 27, the lsaid transport band can be stretched to the desired extent. On the transport band 26 are arranged transversely 'a number of vledges 28 which form' drivers. The frames 7 and 21 are rigidly connected together by mea-nsof an ad]u stable rod 29, the result of which lis that during the movement, that is :to say, raising and lowering of the frame '7 and of the bucket wheel 10 and vl1, the lframe 21 and the tra/nsport 'band 26 are simultaneously moved. l

1n' working, the earth excavated by-the -Vbuckets 11 isv projected in the manner shown in Fig. 1 on to -the transport band 26 and carried by the same or, if it is greatly inclined in the bottom position, by the drivers y28, and transported to the top, that is tosay tdthe-spindle 6. After passing beyond the highest position, the earth detached is discharged into a chute 30 and thence 1nto lthe truck 31 arranged below the same. The ex- (not shown in cavator can work either in such manner that after each up and down movement of the bucket wheel, the truck 2 is moved a certain extent, say to half the width pf the bucket, so that a uniform thickness of layer can' be detached from the ground throughout the ywhole length of the track, or in such manner that after having done a short piece, that is to say, only a few widths of bucket in the manner described, the truck 4 is moved nearer to the ground to be excavated,

to the extent'that the bucket can operate at once, that is to say, to the thickness 'of cut.

By the combination of both methods of working, it is possiblel to produce, in plan, lines of cut at an angle to the track 1 and if necessary, to produce recesses in the wall of earth.

The excavator shown in Fig. 4 consists also of a truck 2 with rails 3 on vwhich are mounted a second truck 4 with a standard or bracket 5, driving spindle 6, jib 17 and chute 30. In the same way, there is a jib 21 which carries the transport. band 26 with its rollers 23 24. Unlike in the first construction shown in Figs. 1-3 where they are parallel to the direction of Working, the rails 1 on which the dredger is traveling are however at a right angle to 'the saine.l

About the spindle 22 of the roller 23 is mounted a spade-like digging tool conslsting of a cutting edge 33 and a slide surface 34 with lateral cheeks 35, by means' of this spade is mounted on the spindle 22. The whole transport device, together with the spade is supported by the jib 17 and can be raised and lowered by means ofthe winch the drawing). In this case, it is possible to turn the spade to a certain extent 4relatively to the jib, which movement is limited' by the sto s 36 37.

The working wit the spade or digging tool can be carried out in two ways, either 'the whole machine can4 be moved at the lowest position of the spades as shown by `full lines, in which case a layer is cut oif in horizontal direction which, in accordance with arrows IV, slides along the `slide sur* face 34 and arrives at the transport band which transfersv it to the chute 30 or to the truck not shown in the drawing. The work can, however, be also carried out in such manner that the Whole excavator is moved in the direction of the arrow only to a short extent, that is to say, to the thickness of cut, so that the edge of the spade penetrates a little into the ground, w ereupon the jib, and with it the spade are raised or moved in the direction of the arrow V. .In this' case, it is preferable to arrange the spade at a reater angle to the jib, as shown by dotte lines. -In thatcase, at each up and down movement, thel layer or shaving correspondingto the width of the spade, is detached from the ground and carried away.

which i cease? After each such movement, the upper truck 4 is moved relatively to the bottom truck to the extent of about the width of the spade. With the latter tool it is possible to make narrow recesses or cuttings, while the excavator shown in Figs. 1`3 is more suitable for widening cuttings already made.

It will be clear that bythe use of a bucket wheel, that is `to say, of a tool of similar formation to a milling-cutter for se arating or detaching the earth, a considera ly thicker layer can be detached-than with the so-called bucket ladder dredgers in which the buckets are not positively guided and are not forced into the earth under strong pressure, but penetrate into the ground with their edges merely under the iniiuence of their own weight and after having been partly filled, are dragged withoutv any effect over the ground, great friction being occasioned thereby. It isA further clear that such a tool,

owing to the greater thickness of shaving or layer, need not divide the ground to be excavated, into so man small particles as the ordinary bucket lad er dredger, and that consequently the work of separation is considerably -smaller than in the case of the latter. It is further clear that the new dredger has the advantage over the bucket ladder dredgers in so far as in working it is situated at the bottom of the cutting, and

not on the top edge of the wall of earth.

It is finally clear that the excavator provided with the s ade-like digging tool will work in a more fgvorable manner than with the digging tools hitherto used, as it can work in a continuous manner, and therefore, need not for the purpose of transporting the dredged material make an oscillation during which no excavating Work can be done, an as it can cut or excavate a much thicker layer because the excavated material at once moves on to the surface of the s ade, no inner 'friction is produced in the redged material as soon as the s ade is a little filled as i the case with the iggin-g tools hitherto use The new excavator works in a very advantageous manner, since the rails on which it is traveling need not be shifted as frequently as in the case of excavators of other types.

What I claim is:

1. In an excavating machine, the combination, with a lower supporting truck, and an upper truck movable crosswlse of the said lower truck and provided with a frame; of an endless conveyer pivotally connected with the said frame, a 3ib-frame also pivotally connected with the said frame and movable in the same plane as the said conveyer and provided with an excavating-tool at its free end, and driving devices for operating the said' conveyer and excavating-tool.

2. Inan excavating machine, the combination, with a supporting-frame, of an endless conveyer pivotally connected with the said frame, a jib-frame also pivotally connected withvthe said frame and movable in the same plane as the said conveyer and provided with. an excavating-tool at its free end, an adjustable connection between the free end portions of the said conveyer and jib-frame, and driving devices for operating the said conveyer and excavating-tool. A

3. In an excavating-machine, the combination, with a supporting-frame, and an end` less conveyer pivotally connected with the said frame; of a jib-frame also pivotally connected with the said frame, an adjustable connection between the outer end portions of the said conveyer and jib-frame, a wheel provided at its periphery with a series of eX- cavating buckets and journaled at the outer end portion of the said ib-frame and adapted to discharge material onto the said conveyer, means for raising and lowering the outer end portions of the said conveyer and jibframe together with the said Wheel, and

driving-devices for revolving the said wheel and operating the said conveyer.

l. In an excavating-machine, the combination` with a supporting-frame, a drivingshaft journaled therein, and an endless conveyer pivoted concentric with the said driving-shaft; of a jib-frame also pivoted concentric with. the said driving-shaft, an excavating-Wheel journaled at the outer end portion of the said jib-frame and adapted to discharge material onto the said conveyer, means for raising and lowering the outer end portions of the said conveyer and jib-frame together with the said Wheel, and drivingp devices for revolving the said wheel from the said shaft independent of the said conveyer.

In testimony whereof I aix my signature, in presence of two witnesses.

ROBERT GLOGNER.

IVitnesses:

HENRY HASPER, WOLDEMAR HAUPT.

Images