US2492217A

US2492217A - Shaft mucker

Info

Publication number: US2492217A
Application number: US715069A
Authority: US
Inventors: Joseph V Grismer
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-12-09
Filing date: 1946-12-09
Publication date: 1949-12-27
Anticipated expiration: 1966-12-27

Description

J. v. GRISMER SHAFT MUCKER il'ed Dec. 9, 1946 5 shams-sheet 1 Arron/vn Patented Dec. 27, 194? 2,492,217. SHAFT MUGKERA JosephlV-l .('lrsmexg S'i'l'verton,.dalot ApcatOnDe'cemHer 9, farsi serial Nbaetlgose s Claims (CL 214-141).

amucker of this'typef wherein axscoop bucket'A for removing dirt and rock from the bottomrof a shaft is.` carried bya hook.' so mounted that it may beiL shifted longitudinally-and' also swung vertic'aslly and. horizontally` so thatthe: scoop bucket maybe rock and dirt from all portionsioffthexbottom of the shaft andthef dirt and rock -.then'-duinped into; a hoisting bucket..

Another object offthef-inventiorf is to provide a` shaft mii-cker having'. improved means-:for controlling'- movementsl ofi'.` th'e boom-4 carrying the scoop' bucket, this controlling. means being so constructed. and larranged that: it maybe operated by one workman standing near the.A bottom of thei frame erected in-tlie=.\shaft..

Another obj ectf of thez invention. to provide a shaft mucker having a-.supportlfor--thef boom whichaisiirmly mounted across thebottom' of .the framebut canl be easily and. quickly shifted to a: lower position when additional. framing is added as the shaft is deepened;

Another object r of. the inventionis to provide 'a1 shaft-mucker which isfcomparatively' simple v in vconstruction .andeeasy tf1-operate'.v

Thefinverition-i is illustrated-in the accompanying; drawings wherein:

Fig. lis a view showingif the.y frame-:in vertical section and' the muckingy apparatus in side elevation.

Fig. 2 is a1 similar lview `showing the -mucking apparatus in: front: elevation;v

Fig; 3i is a' view sh'owir'xg the frame in transverse section andthe mucki-ng apparatus inztop plan.

Fig; 4i isn-a'` fragmentary sectional view takenalong th`e"linef4"-4ofIE?lgm'e 3'.

Fig. 5 is a sectional view'- taken alongthe'li'ne Si-Eof Figure 3'.

The shaft Ii isv dugvertically. in the ground and as it is deepened'a f'r-"ameisl erected in the shaft. Thisy flram'ev's formedofy heavy` beams and has asuitablevnmnberof vertically extending beams 2 andl lhorizontally extendingbeams or crossstringer's andll. Since certainfofthe movedinto; position. for; removing? mechanism: theseaparticular orosssbeamsxzmawbe temporarily: oxnittedy at.: the'botto'm: ein the; frame until` the shaftahas--beendugsto :inch4- aideptlrgtliat additional.y framingehas; been .added to? the lower end1 of the frame: thea mucklng; apparatus lowered' to. anew positionsat thebottonr ofsthe frame.

Dirt and .rock .are tof. be. dug; from; tliebottom of.: thelshaftby means ofaaiscoop buck-eti' 0r.shovel 'y 5: which isy mountedA between thea-form., ori arms 6: at the: front;4 end-` cfr-.a lri'ooun` 1i Theboom; is square in crossxsectinffandamaj befornedaoztwo channel. beams' haiingA thee.. Off; their: Side flanges Welded7 to? each.othenn.asizshcvznimFiigf urea4,.or as aunii'fi@sbislesiiseriaA Thiselioomrslidably. passesi througlrr;A a. tubularzsieeve or. casing; 8 which extends through7 a rectangular. frame? 9 having; outstanding. anges Iilwa'zlongits.: edges and at i'ts. topv and. bottom: the;.frame.formed midway its Widthwithpopeningsw. Irly to receive trunn'ions izcarriedaby platesgl whiehxarersecured toftheifiaineaby bolts-1:4.. Thetrunnions engage through. bushings la: mountedf through upper and lower portionsaof;thecasing 8i and mounting* thecaslngiand'f theaboorn.forV swinging mciveinen'tv transverselyl off: the shaft and thus allowing the scoop to. be shifted transversely= of the shaftv into position foriclearingi'dirt.:andzrock from thezbott'ompo the'rsha'ft for-the. full width thereof.

351 ting about'. the side? beamv 3? toward which v the shaft I1 extends and thebeafng.J` i8v carriesfa plate 21| through: Whichf-setfscrewsn arethreaded and j ourna-ledtof aashoe; v2 3- soil that this shoemay beshifted .toward and" avv-ayV from the; shaft I6 and thus-moved into and `'out of gripping; engage'- ment with abea'm Swat theroppositeside` `of the shaft fromthevbeam engaged-:by the1.shoe2il;` It will thus be seen thatthebearingsfmay'bemounted atoppositefsides of the-lowerendfof the `frame erected inthe shaft` and aslnce; the frame; 'v9 turns with the rocker shafts theboom may haveY verticalv swinging `movenfient and thusimpartA scooping movement to. the bucket -or'` shovel 5 duringA removal of dirtand-rock from -thebottomof the shaft, and llingofpthebucket; 2l by' means: .of

which the dirt-fandfroclc a'reehoistedzfrom` the shaft.

Sliding; movement off'y the boom. through the casing;y 3l is controlled fxbyf. av brakeiaZr/mountds in auf-internal'. recess atrone sidefzotltheecasing 8 at the lower end of the frame.

and has a shank 26 which projects outwardly from the casing through an opening 21 and is pivoted to a rod 28 which passes through a slot 29 formed in the confronting side wall of the frame 9 and extends longitudinally in the rocker shaft I6. The rod is pivotally connected with a piston 30 which is slidable longitudinally in the rocker shaft and since the end portion of the rocker shaft in which the piston operates is blocked by a partition 3| this portion of the rocker shaft forms a cylinder for the piston. A exible tube or hose 32 leads from a valve 33 to the portion of the rocker shaft or cylinder between the piston and the partition 3| and this valve is connected with a suitable source of air under pressure. By actuating the valve air may be admitted into the cylinder to shift the piston longitudinally and force the brake into gripping engagement with the boom and upon again actuating the valve the air may be allowed to escape and thus allow the brake to move to a position for releasing the boom and allowing the boom to slide through the casing. It will thus be seen that during use of the mucker the boom may be allowed to slide through the casing as the bucket is moved toward the position indicated by dotted lines in Figure l and so held as the boom is swung forwardly for scooping rock and dirt from the bottom of the shaft. During this forward movement the brake may be released so that the boom may slide rearwardly until the bucket 5 is over the bucket 24 and the brake then again applied to hold the boom stationary and maintain the bucket 5 in position over the bucket 24 while the hinged bottom 33 of the bucket 5 is released by the trip rope 35 and allowed to swing to the dumping position. The scoop bucket is pivotally mounted between the forms or arms by pivot pins 35 and held in an angularly adjusted position by pins 36 which are passed through openings in the forks and through selected ones of the openings 31 formed through side walls of the bucket. l

Transverse swinging movement of the sleeve or casing 3 about the trunnions l2 for shifting the :and connected with an ear 42 projecting laterally Vfrom the front end portion of the sleeve or casing 8. Flexible tubes or hoses 43 lead from end portions of :le cylinder 38 to the valve 33 so that by manipulating this valve flow of air through the 'tubes may be controlled andthe piston slid in the cylinder to'shift the-'casing and the boom transversely of the shaft l to adjusted positions. The valve 33 is a conventional master valve and it will be understood that if desired separate valves may be provided for controlling flow of air through the tubes 32 and 43.

In order to control movements of the boom and sooo-sing or diggingof rock and dirt from the bottom of the shaft there have been provided cables la and 55. These cables are wound about hoisting drums 4S and 41. The cable 44 extends downwardlyfrom the drum 46 and across a roller 48, and after is then trained about the pulley 49 carried by the scoop bucket 5 and secured at its lower end to a screw eye carried by a cross beam 4 The cable 45 extends downwardly fromthe drum 41 and after being trained about a pulley 5I is attached to an ear 52 at the rear edge of the bottom of the scoop bucket. Rotation of the drums is controlled by controls 53 and 54 having adjusting handles 55 and 56 from ends of which extend pull ropes 51. 58, 59 and 60. These ropes are passed through eyes 6l so that their lower ends will be held in position to be grasped by a workman standing at the lower end of the frame near the valve 33. By actuating the control 53 to allow the cable 44 to unwind from the drum 46 and actuating the control 54 to cause the cable 45 to be wound upon the drum 41 the boom may be swung to the position indicated by dotted lines in Figure 1 and the cable 44 may then be wound upon the drum 46 to draw the scoop bucket forwardly and upwardly with a load of rock and dirt to a position over the bucket 24 where it will be held by applying the brake 25 and the trip line 34 then pulled to release the bottom 33 of the scoop bucket and allow this bottom to swing to an opened position for dumping contents of the scoop bucket into the hoisting bucket. After the hoisting bucket 24 has been filled it is raised from the shaft and emptied and again lowered for refilling. When the depth of the shaft becomes such that rock and dirt can not be removed by the scoop bucket additional framing is added at the lower end of the frame erected in the shaft and the mucker mechanism lowered to the added framing.

Having thus described the invention what is claimed is:

1. A shaft mucker comprising a frame erected in a shaft, the shaft-frame being formed of beams secured to each other whereby the depth of the frame may be increased as the shaft is deepened, a scoop at the lower end of the frame having a bucket and a boom carrying the bucket and extending rearwardly therefrom, an open frame extending transversely of the shaft frame and mounted for rocking movement about a horizontal axis extending transversely of the shaft frame, a sleeve extending through the open frame and through which the boom slidably passes, said sleeve being pivoted in the open frame for swinging movement transversely of the shaft about a vertical axis, a brake movable through a wall of thesleeve into and out of position for gripping the boom and releasably holding the boom against sliding movement longitudinally through the sleeve, a cylinder forming a portion of the horizontal axis of the open frame, a piston slidable longitudinally in said cylinder and having a piston rod extending from the inner end of the cylinder into the open frame and connected with said brake for applying and releasing the brake during movements of the piston, a second cylinder, a piston slidable longitudinally in the second cylinder and having a piston rod extending outwardly through one end of the cylinder and connected with said sleeve for swinging the sleeve and the boom transversely in the shaft about the vertical axis of the sleeve, and cable connected with the bucket for controlling vertical tilting of the boom and the open frame about the horizontal axis 'of the open frame and imparting dipping movements to the bucket for scooping material from the bottom of theshaft.

2. A shaft mucker comprising a frame erected in a shaft, the shaft-frame being formed of horiz'ontally and vertically extending beams, a scoop at the lower end of the frame having a bucket and a boom carrying the bucket and extending rearwardly therefrom,` an open frame extending transversely ofthe shaft frame, rocker shafts extending from opposite sides of said open frame,

a shoe at the outer end of one rocker shaft for engaging a horizontally extending beam of the shaft-frame, said shoe constituting a bearing rotatably supporting the companion rocker shaft, a bearing for the other rocker shaft, a shoe for engaging second horizontal beamv of the shaftfrarne, screws threaded through the last mentioned shoe for firmly holding the said shoes in gripping engagement with the companion horizontally extending beams and removably supporting rocker shaft and the open frame in the shaft-frame, a sleeve extending horizontally through the open frame and through which the boom slidably passes, said sleeve being pivoted in the open frame for swinging movement transversely of theshaft about a vertical axis, means for swinging Ethe sleeve and the boom transversely of the open frame about the vertical axis, and means for controlling vertical tilting of the sleeve and the open frame about the horizontal axis of the open frame and imparting dipping movements tothe bucket for scooping material from the bottom of the shaft being dug.

3. A shaft mucker comprising a frame erected in a shaft, the shaft-frame being formed of beams secured to each other whereby the depth of the frame may be increased as the shaft is deepened, a scoop at the lowervend of the frame having a bucket and a boom carrying the bucket and extending rearwardly therefrom, an open frame extending transversely in the shaft frame and mounted for rocking movement about a horizontal axis extending transversely of the shaft frame, a sleeve extending horizontally through lil the open frame and through which the boom slid- 35 ably passes, said sleeve being pivoted in the open frame for swinging movement transversely of the shaft about a vertical axis, means for swinging the sleeve and the boom transversely of the open frame about the vertical axis, drums mounted in vthe shaft frame, cables wound about said drums and having portions extending downwardly in the shaft and connected with front and rear portions of the bucket, said drums being controlled by valves having cross heads constitutinghandles for the valves, and operating lines for the valves extending from ends of their handles Ldownwardly in the shaft frame to a position in which they may be grasped by an operator in thefshaft frame and pull exerted upon the lines to open and close the valves.

` JOSEPH V. GRISMER.

REFERENCES CITED The following references are of record in the 111e of this patent:

UNITED STATES PATENTS Number Name Date 1,615,284 Kennedy Jan. 25, 1927 1,522,456 Liebmann Mar. 29 1927 1,649,450 Daniel Nov. 15, 1927 1,987,982 Wheeler Jan. 15, 1935 2,326,172 Riddell Aug. 10 1943 2,358,543 Tolemire Sept. 19, 1944 2,421,379 Harding June 3, 1947 22426591 Boskovich Sept. 2, 1947 1'A FOREIGN PATENTS Number Country Date 486,168 Germany Nov. 11, 1929 f"'323,883 Germany Aug. 11, 1920