US1412922A

US1412922A - Excavating machine

Info

Publication number: US1412922A
Application number: US395443A
Authority: US
Inventors: Collatz William
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-07-12
Filing date: 1920-07-12
Publication date: 1922-04-18
Anticipated expiration: 1939-04-18

Description

vv, CULLAIZ. EXCAVATING MACHINE.

APPLlCATION FILED JULY12,1920.

l 94:1 23922 Patented Apr; 18, 1922.

3 SHtETS-SHEET l.

W. COLLATZ.

EXCAVATING MACHINE.

APPLICATION FILED JULY 12,1920.

1.412,922., Patented Apr. i8. 1922.

3 SHEETS-SHEET 2.

I N VEN TOR.

W ATTRY.

W. COLLATZ.

EXCAVATING MACHINE.

APPLICATION FILED .IULY I2, I920. 1,412,922, Patented Apr. I8, 1922.

3 SHEEI-S-SHEET 3.

IN VEN TOR.

WLM/fam CoN BY UNITED STATES PATENT oFETcE.

, WILLIAM coLLA'rz, or carence, I LLrNors.-

nxcAvATTNe Macnrlm Specification of Letters Patent.

Appncauon'nled July 12, 1920. seria; No. 395,443.

To all whom t may con-cem: p

Be it known that I, WILLIAM CoLLATz, a

citizen of United States, residing at Chicago,

This inventlon relates to improvements in excavating machines.

One object of the invention to. providea compact, substantial, easily controlled, simple excavating machine arranged to scoop -up the material at one place and dee posit it in a car or other receptacle, the machine being particularly adapted for use 1n making drifts in mines where the working space available for operations v1s very restricted both as to height and width. -Another and more specific object of the invention is to provide an excavating machine wherein is employed a scoop universally mounted.

The invention furthermore consists in the improvements'in the parts and devices and in the novel combinations of the parts and devices herein shown and made the subject matter of claim.

In the drawing forming a part of this specification, view of an excavating machine showing my improvements in connectiontherewith.- The osition of the machine'is shown in the drawing in Figure 1 as it would appear in a mine when employed in drifting. Figure 2 is a vertical sectional view corresponding substan- Els@ tially to the line 2 2 of Figure 1. Figure 3 is a part horizontal sectional view, part topplan view of the machine illustrated in Figure 1, certain parts being omitted in order to more clearly indicatethe structure. And Figure 4 is a detailed sectional view, upon an enlarged scale, corresponding substantially to the line 4-4 of Figure 1. v

In the said drawing, the improved machine is shown as it would be designed for use in mine drifting whereit can be run on tracks and the dirt, gravel, or ore, excavated from in front of the machine and dumped into` a suitable car C at the rear thereof. As shown,

thel machine comprises a base Av and a table B pivotally mounted thereon. The base A is suitably mounted ona truck having wheels l0-10 to facilitate movements of the ma- Figure l .is'a'side elevational chine from one place to another. rIhe base Patented-Apr.' 18,1922. p y i A of the machine will be made in the formv l A of a heavy casting and is circular, the same being provided around its periphery with a'.

circular rack 11. The table B is alsoin the formof a casting and is pivoted on the base y A, the two members A and B being provided w1th sultable preferably machined bearing surfaces 12 near the periphery and with corresponding bearing lsurfaces 18 near the pivot o' king pin 14.v The latter is made -hollow as indicated at 15 so as to permit the supply of com-pressed air tothe operating motors, hereinafter described, regardless of theiposition of the table B with lrespect-to the base A. Aswill be understood by those skilled in'the art, the compressed air is introduced through a pipe which. passes up within the pivot pin 14. and has a swivel connection at the top thereof from which lead the branch ipes to the various motors.

In order to swmg the table B into any de- 4 sired angular position with respect Ato the base A, I mount a vertical 'shaft' 16 in

suitable bearings

17 and 18 carried by the table B, the shaft 16 having a pinion 19 at its lower end vwhich meshes l,with the circular rack 11. The upper end of the shaft l'carries a 'beveled gear 20 with which co-operates a beveled gear 21 mounted to rotate about a horizontalaxiasaid beveled gear 21 being driven fromA a compressed air motor indicated generally by the reference Din the drawings.v The .air motor referred to is only shown diagrammatically as it is believed that f this is suficient for an understanding of the '1 invention. Any suitable motor may belemi.

engine, the specific typevof motor forming` lno part of my invention. As clearly indi-l :ployed as for instance the well known Dake cated in Figure 1, the motor- D has a conl trolling lever 22 by which it may be started and stopped. As will be understood by those skilled in the art. asuitable reduction gear is interposed between the motor D proper and the beveled gear 21, such reduction gear being indicated generally` by the reference E in Figures 2 and 3. As will be obvious, by

rotating the shaft 16, the table B will be compelled to revolve With respect to the base`A and the arrangement is suchthat the table can effect a complete revolution with respect to the base A.

The table B carries a pair of upwardly extending relatively heavy bearing standardsl 23-23. The latter, at their upper ends,

carry a journal or shaft 24 ofsuiicient strength to support the bucket and b-racket which carries it. Keyed or otherwise secured to said shaft 24 is a heavy lbracket F` having a pair of arms 25-25. The latter are provided with segmental racks 26-26 with which co-o crate pinions 27-27 fixed on a shaft 127, t e latter being mounted in suitable bearings provided by said standards 23. The shaft 127, at its left-hand end as viewed in Figure 2, has secured thereto a worm gear 28 driven by a worm 29, the latter being operated from another compressed air motor indicated diagrammaticallymost clearly in Figure 3'and referenced rEhe control of said motor G is effected throughfa control lever 30 indicated in Figures 1 and 3. As will be understood by those skilled in the art, suitable bearings and housings are provided for the worm gear and worm and shaftings on which they are carried.v Asf will be evident from the preceding description, the angular position of the heavy bracket F can be varied by means of the train of gears just described. lt will also` be noted, from an inspection of Figure 1, that the axis of the bracket F is in a vertical plane disposed within the periphery of the base 11 so as to keep within a suitable relatively short radius, the circle through which the said heavy bracket F moves during the .rotation of the table B.

'gear 35 is driven bya grear 135 loosely mounted on the shaft said gear 135i being driven from a pinion 36 fixed on a horizontall extending shaft 37 suitably mounte in su plemental bearings; 38'-,38 carried by sai; standards 23. The shafty 37 is in turn driven from a third compressed air motor indicated diagrammatically and referenced H by .means ofgear 39, ar 40,- shaft 41, gear 42, and gear 43. s will be evident from an inspection of the drawing, the train of gears very materially reduces the speed of rot-ation so that the movements of the arm 32 within the bracket F are under easy control. The motor H is started and stopped by any suitable means as for instance by the control lever 44 indicated in Fi res 1 and 3.

In Figure 3 is dlagrammatically indicated a 4station S where the operator may ,be positioned and who will have in front of him table suitable control levers for individually controlling each of the three motors, D, G and H. lt will be understood that suitable piping is employed to deliver the compressed air to each of the .motors and all under the control of a single operator located at the station-S. -v

During theJ scooping up 0f the dirt, ore or other material, it is of courseessential that the machine be prevented fromjmovementand to accomplish this result, l preferably provide the baseA with a plurality of rigidly attached brackets 45` located at the corners or at other suitable places, each 'of said brackets 4 5 having an adjustable heavy screwH 46 therein extending vertically and adapted to be adjustedso as to lift the weight of the machine from the wheels 10 and have the entire weightsustained by said screws 46.

- ln operation, assuming the machine in the position shown in Figure 1 where the dipper 33 is in position to scoop up thematerial, the operator will cause the bracket F to be oscillated by starting the motor G which will swing the vdipper 33 upwardly and collect the material. It will also be understood that, under-some conditions, the oscillating movement of the bracket F may be dispensed with at this step in the operation, and the material be scooped u by operating the arm 32 from the motor or, under someconditions',

t there will be the combined movements of the bracket F and sliding movement of the arm 32. The material having been scooped into the dilpper 33, the operator ,thenl causes the to rotate on the base A. by throwing the motor D into operation. -The dipper is thereby swung to the rear of the machine and at the same time the dipper 33 will be gradually elevated so as to bring it to a level above the dump car C or other receptacle and-permit the material to be dumped therein. By suitably manipulating the bracket F and the arm carrying the dipper, the latter can be swung within a relatively small circle because of the compact arrangement illustrated, thereby adapting the machine particularly for use in drifting of mines where the dimensions of drifts average about .7% feet'in height and 9 feetin width.

I have herein shown and described what l l now consider the preferred manner of car-v rylng out the invention but it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit of the invention and l eontemplate'such changes and modifications as comev within the 'scope of claims appended hereto.

I claim:

1.V In an excavating machine, the combination with a base; of a table rotatably mounted withA respect to said base about a vertical we axis and adapted to make a complete rotation with respect to the base; means for efecting relative rotation between said base and table; a heavy bracket oscillatably mounted on said table about a horizontal axis, saidbracket including a -pair of laterally spaced segmental racks extending between said axis and the bottom part of the table; means for oscillating said bracket including pinions engageable with said segmental racks; an arm mounted on said bracket to slide back and forth'thereon in a plane perpendicular to said horizontal axis; means for effecting said sliding movements of said arm in any position of the bracket and including a gear rotatable about said horizontal axis and located between said segmental racks; and a bucket carried by one end of said arm.

2. InA a machine of the.. character described, the combination with a relatively stationary base; of a table above said base; means pivot/ally connecting said base and table including a hollow pivot pin through which a source of motive power is adapted to be conducted; means for rotating said table on said base including a motor mounted on the table; a bracket oscillatably mounted about a horizontal axis and Acarried by said table; means for oscillating said bracket about its axis including a second motor mounted on the table; a scoop-carrying arm slidably mounted on said bracket in a plane perpendicular to said axis; and means for adjusting said arm with respect to the bracket in any position of the latter including a third member also mounted on said table, all of said three motors being adapted to be supplied with a motive power conducted through said hollow pivot pin.

3. In a machine of the character described, the combination with a base; of a table rotatably mounted with respect to said base about a vertical axis; means 'for effectin relative rotation between sa1d base and tab e including a motor mounted on the table; a bracket oscillatably mounted on said table about a horizontal axis; means for oscillating said bracket including, a segmental rack on said bracket located between said axis and the bottom of the table and a lgear rotatably mounted on the table about a horizontal axis co-operable with said rack; a scoop-carrying arm slidably mounted onl said bracket; and independently controllable means mounted on the table for effecting the sliding `movements of said arm on said bracket in any position of the latter. 4

llng

bracket; and means for adjusting saidarm 4.* In a machine ofthe character described,

the combination with a base; of a tablerotatably mounted on said base about a vertical axis; means for effecting rotation' of said table with respect to the base including a motor mounted directly on thetable; a bracket oscillatably mounted on said table about a horizontal axis; means for oscillating said bracket; an arm mounted on said bracket to slide back and forth thereon in a plane perpendicular to-said horizontal axis independently controllable means for effecting said sliding movements of said arm including, a rack on said arm, a gear co-operable therewithv and loosely mounted about said horizontal axis of the bracket, a motor, and reduction gearing between said motor and loose gear; and a member for containing material carried at one end of said arm..

5. In an excavating machine, the combination with ,a base; of a' table .rotatably mounted on said base about a vertical axis; means for effecting rotation of said table on said base; a bracket oscilatably mounted about a horizontal axis on said table; means for oscillating said bracket; a scoop-carrying arm mounted on said bracket to slide back and forth thereon; Aand means for effecting? said sliding movements of said arm, each of said. means for eecting the vmovements of-2 l.

the table,'bracket and arm including an independently controllable motor directly mounted `on the table.

6. In a machine of the character described,l

the combination with a base; of a table;

means for pivotally connecting said base and table including a hollow pivot pin throughl which a compressed air supplying pipe is` adapted to be extended; means for rotating lsaid table on said base including a compressed air motor; a bracket oscillatably mounted about a horizontal axis and carried by said table; means for oscillating said bracket including a segmental gear thereon, I

al secondy compressed air motor and gearing between said motor and rack; a scoop-carryarm sl'idably mounted within lsaid with respect to the bracket in any position otl the latter including, a rack on ysaid arm, a-