US1781211A - Skip-bucket discharge mechanism - Google Patents

Description

:Nov. 11; 1930. R. H. BEAUMONT SKIP BUCKET DISCHARGE MECHANISM Filed April 6, 1928 INVENTOR:

7:7:6RNEYS.

Patented Nov. 11, 1930 UNITED STATE' PATENT. e c E]! nonnn'r n1 Beaumont, or RADNOR, PENNSYLVANIA, ASSIGNOEYTO an. BEAUMONT 00., or PHILADELPHIA, PENNSYLVANIA,- a oonronarlo v,orrnn vsxrvnnmj SKIP-B C ET DISCHARGE MECHANISM- Application filed April 6, 1928. Serial No. 267,871

This invention relatesto apparatus useful in hoisting material such as sand, gravel, coal, ashes, etc., and more particularly to that type known as skip-bucket mechanism adapted to elevate material to a desired. level for gravity dumping.

More specifically, the present invention relates to certain improvements in apparatus of the type described in my co-pending '10 application Serial Number 106,600, filed the 4th day of May, 1926; now matured into Patent No. 1,707,197, dated March 26, 1929; and, it has for a-general'object the provision of an inexpensive skip-bucket dis- '15 charge mechanism embodying novel means 1 In the drawings z+ Fig. I is a side elevation ofafragmentary portion of a skip-bucket discharge mechanism in accordance with the present invention; and, l

Fig. II is a section, taken approximately as indicated by the line II- I'I' in the preced ingview. 7 4 I Referring more in detail to the drawings a conventional skip-bucket is comprehensively designated by the numeral 3; the same having a sloping mouth 4 and being constructed of sheet metal with appropriate bracings to give the requisite strength and rigidity. This skip-bucket 3 is adapted to a vertical (or inclined) track 5 conveniently though not essentially-of I-beams, or

any other standard sections that will afembers 5 by means of an-glepsrections are ford guidance for single or double flanged pairs of wheels 6,7. These upper and lower pairs of wheels 6, 7, respectively, are mounted on common axes 8, 9, supported by bearings 10 rigidly secured to one side of the skip-bucket 3; and they are of a size to freely traverse the opposed inwardly-diengagementby the bai1 members 12, when mately the arcuate curvature shownin Fig. I; that is to say,*the major portion thereof 20 V are rigidly secured to the supports 17,

rectded lateral-flanges of the I-beams afore- The skip-bucket 3 is supported and actuated" through the medium of appropriate hoisting gearnotshownattached centrally to a shaft 11, intermediate bail members 12, in turn pivoted at '13 to suitable pintles or bearing axes 14 rigidly, secured to the bottom of said skip-bucket.v '-Mounted at the outer ends of the shaft 11 are Wheels 15*(comp1ements of those designatedrtand adapted to the track 5, while limitstraps or stops 16 are securedito the skip-bucket 3, with their free ends'suitably angled for the skip-bucket is in dumping position, as

indicated by thedotv-and dash'line showing in Fig. I, as well as serving to prevent overturning thereof. V j I At the back, the trackfi is'provided with spaced upper and lower supports 17, 18, conveniently of angle-sections braced to said tracks'by suitable sections 19. These supportsl'Z, 18 itwill be observed are rectangular in configuration andof-diifering lateral 71 width; while they jointly serve to sustain cam pieces 20, in the form of stout flat-bar members longitudinally bent to approxi- 58 0 is of parabolic profile'with the ends 21, 22

of differential. curvatures, for a purposelater on explained. Obviously, the cam; pieces 18 in spaced co-planar "relation, and they are v:adapted for engagementaslater on explained-by rollers 23, freelyvjournaled on stub axles 24, in turn carried by appropriate bearings25, securely attached to the rear I wall of the skip-bucket3, adjacent the 'slop- 390 ing mouth 4, aforesaid.

Rigidly secured to the front of tracl:

offset discharge rails 27; each of which" is rounded at 28 and provided with Ian abutment 29 that serves to limit outward movement of the skip-bucket 3 anterior to dumping invertically aligned 'co-planar 'to the inner edges of the track members 5 with their :7 movcmentFof thwheels 1 5,6 and 7 Obvicurved ends 28 swept into the lowerrends ofcut-outs or recessions 30in the guide flanges.

of said rails. On the other hand, the portions of the'guide-fian'ges adjoining the: upper ends g of thefcut-outsor' recessions 30 are upwardly 'and outwardly curved at 31 relative to the tracks 5 so as to'ofier no impedances to free ously suitable bracings not shown'iiiay be fitted inconnection withtheofiset discharge rails 27 to rigidly sustain the" same. against,

" lateral and other disalignmentwithrespect to the tracks 5. v

I -use,,:it will be apparent that, as the: skipbrought intoengagement with'the-cam pieces QO by initial cguidancezof the lower curved f-ends 22lthereofg; while, incident togfurther elevation of saidbucket, the leading wheels 6 thereonv will! emerge out of the cut-outs or v "reoessiol rs BQQinfthe tracks '5 by traversing the curved endsr28 of the discharge rails 27. Continued upward movement otthe skip bucket 3, 1 incident to; engagement of the rollers 2,3Iwith the cam pieces '20, progresses the wheelsfi along thedischargerails 27: until they; ,impactoitheabutments 29 and are, subsequently, retracted (along with the-skip- I bucket 3 is'elevated, the rollers 23 willbef bucket 3-and-bail members 12) to-the posi-' "tion: shown dot-and-jdash; lines in: Fig; vI;

Thus fit;- Will; be" readily understood that the 7 axis 9 serves as thepivot aboutwhichtheskip bucket 3" is dumped whileithe wheels-7 there ,on--never: leave the tracks .5 during a passage of the cut-outs? 30-incidentl to the wheels. 6. .en-

; gaging the lir'lititing,ahutments 29. "Particu- 'anyswinging" movement of" the skip=bucket 3 lar attention isalso: directedsto the tactthat other thamthatnecessaryfor dumping) is.

cfiectiivelyl prevented; by -,engagementjof the r-strapszor stops 1'6 with. the. bail: membersv 12;

or; 'inrother wordstheskip-bucket 3 is held.

temporarily+stationaryi :loy means of the parts-just: recited and retainm'ent: ot the zwheelsz'rl5and7in thetra,ck s 5,above theicutouts on=reeessions 30: all,= of whichsiseasily ,visualized-Oman-examinationofliig. I..Re-

turnofftherskip bucket 3 to Ire-filling :location isaso obvious from the foregoing description thatit needs notde'tai ledzexplanation herein.

-.a rounded approach endand a relatively revania, thi'sBrd day of April, 192811 1 ,,-ROBERTBEAUMON'I:; 7

tom intermediate the 'front and rear walls thereof and-having'a pair of similar'wheels i I at its suspension end a track with which all of said wheels normally engagev in guiding travel of the bucket, said track having 3coplanarcut outs affording entry to and exit,

" from offset discharge rails each of which embodies a vertical abutment, a stationary fofiset arcuate cam path supported by the track,

and a, roller onthe bucket lco'- operative with 5 thecam pa'th serving to -move the bucket 1 "upper wheels from the' track onto the discharge-rails rorimpact with, and retraction from the abutinents aforesaid in effecting automatic inversion' of the bucket incident to outwardlateral displacement of its month relative to father track and limited turning movement about the axis of the lower pai iof wheelsthereon; v f 55 2. In skip-bucket discharge; mechanism of the type described, a'skip-bucket With upper and lower pairs of wheels oncommonl axes,

a: suspension bail pivoted to the bucket bot tom intermediate the front and rear-j walls thereof and having 'a p'air of similar wheels at itss'uspension end,a track, with which'all of said wheels normallyen-gage in guiding travel of thebuckea saidi trackhaving 00- p a r u t hedump g level; Pa a leled offset arcuate stationary-cam pathssuprported by the trackwith the en dsthereof differentially curved, discharge rails sustained, by the track communicating :with the; cutoutsgtherein, each said di-scharge rail having moteryer ticalabutment, and freely rotatable V a 'rollerson thebucket adaptedto traverse the p cam paths in iefie'cting' automatie outward disa placement of the upper pairs of, bucket wheels along the discharge railsgfor imp-act: with and rretractionfrom, the abutments thereon and limitedi turning inovement of i said bucket about the axis of the lower wheels thereon. i

r In' testimony whereof, I

signed my 'fname at Philadelphia,Pennsyl;

Jlgflii;skiphucketidischargeinechanisrnaof I ,thetype: described, a skipebucketwith upper 1 andflowerpairsoi wheels on common axes, I i

1i3hbl10k133 bot

Images