US2481643A - Skip for handling bulk freight - Google Patents

Description

Sept. 13', 1949. J. w. BURNETT SKIP FOR HANDLING BULK FREIGHT 3 Srfxeets-Sheet 1 Filed Oct. 25, 1944 Sept. 13, 1949. J. w. BURNETT SKIP FOR HANDLING BULK FREIGHT 3 Sheets-Sheet 2 Filed Oct. 25, 1944 J. W. BURNETT SKIP FOR HANDLING BULK FREIGHT 3 Sheets-Sheet 3 Sept. 13, 1949.

Filed Oct. 23, 1944 J I1H u n 1. n .LIIIIMLLIFIIll-l..

Patented Sept. 13, `1949 SKIP FOR HANDLING BULK FREIGHT J'ohn W. Burnett, Chicago, 'll., 'assigner to Reynolds Metals Company, Richmond, Va., a corporation of Delaware Application October 23, 19421, Serial No. '560,006

(Cl. 10'5e-2747) 7 Claims.

My invention relates to an improvement in material handling equipment and has for one purpose to provide means for handling bulk materials of mixed sizes.

Another purpose is to provide an improved transporting and dumping skip for use, for example, With railway lcars and trucks.

' `Another purpose is to @provide an improved means for mounting such a skip `on a car, truck or support.

Another purpose is to provide improved tilting and seating abutment means for skips and the like.

Other purposes will appear from time to time in the 'course of the specification and claims.

My invention is illustrated more 'or 4less diagrammatically in the accompanying drawings, wherein:

Figure 1 isa plan view;

Figure 2 is a side elevation;

Figure 3 is a section on an enlarged scale on the line 3-3 of Figure l2;

Figure 4 is a section on the line 4-4 of Figure 3;

Figure 5 is a vsection on the line 5-5 of Figure 2;

Figure 6 is a 'section on an enlarged scale 'on 'the line v6--6 of Figure 5; and

`Figure 7 is a section on the line 'I-1 of Figure 6. Y

Like parts are indicated by like characters throughout the specification and drawings.

Referring to the drawings, I generally indic'at'es any suitable rails to receive the 'flanged wheels 2 of any suitable 4flat car 3 having the '5:

flat floor or deck 4. 5 vare longitudinally extending wooden blocks or supports secured to the deck "4. I are transversely extending tieplates or strips which extend beneath th'e blocks 5 and terminate at opposite sides of the 'car floor 4. 'Ihey may advantageously be recessed into the floor as shown in Figure y5. Referring to Figures 5 4and 7, I illustrate kat one end of the tie-plate or strip 6, a tipping stop generally indicated as 'I and having Aan upwardly extending abutment 8 having a 'generally arcuate inside pivoting sur- .Iace 9. IIJ is an upwardly 'extending back stop. rIhe upwardly extending abutment 8 has an inclined face II, the purpose of which will 'later appear. In Figure 5, I Villustrate at the opposite end of the tie-plate or strip 'S an identical `stop element la, which is shown as functioning as 'a seating guide. Note that the inclined lface I'Ia of 'the upwardly extending member =8a v.faces itoward the ycenter kof the car, whereas the corre.

n n i) the upwardly extending stop I0.

Vmeans may be employed for tilting the skip. I

spondin'g surface I I vof the stop 8 at the opposite end of the tie-strip races outwardly. Any fsu/ita able number of tie-strips and stop assemblies may be employed but I find it convenient to use 'two for 'each individual skip.

Positioned above said pair Vof tie-plates or `strips 6 is a skip structure generally indicated as A. Each `said skip includes 'a bottom I5, side walls I6 and, in the 'form of Figure 5; an end wall II. For reinforcement I may employ aplurality of any suitable exterior vst'ru'ct'liral ele'- 'rnen't's IB, herein 'shown as I-beams, bent or spliced to conform to the rounded corners I9., connecting the bottom I5 and the sides I6. These I-beam's are sized and spaced to penetrate be tween the longitudinally extending blocks 5, with enough clearance to lpermit tilting. y

The endof the ski-p opposite the wall lll is closed by a door 20 hinged as at 2| and, if desir'ed, provid-ed with a l'irnit chain v22. The door` is vshown in Figure 5, tin full line, in the Vclosed 'position 'and may be locked closed byv any suit fable means. I illustrate for example locking plates 23 secured to each ofthe side walls I6. Each 'plate 23 has a forwardly extending :pin 24 aperture'cl as at V25 vand projecting through an aperture 26 in' the ydoor 20. -21 is any suitable locking wedge which may be dropped through the aperture 25. l

In Figure "5, I illustrate a hinged door 20 at one end only of the skip and a 'closed end 'I1 at the opposite end 'of the skip. Thus the skip is built to be tilted 'and dumped in one direction only. lThe pivot "is .provided by a tipping lug -310 projecting downwardly from any suitable abut'- ment plate 31 secured to 'the bottom of the skip. The intermediate portion has a rounded surface 32 adapted to yoppose the concave rounded sur- 'ace 9 of the abutment 8. It is also provided with two downwardly or outwardly extending Yend lears`33 adapted to prevent relative lateral ymovement of the hinge elements thus provided. When the skip 'has been tilted .yrearward movement oi the tipping lug zor lock 30 is prevented by Any suitable illustrate for example an eye 35 adapted toreceive any suitable chain, rope or cable whereby, from any suitable hoist not herein shown, the right vhand -end of 'the Askip may be raised, referring to 'the position of the parts Vshown in Figure f5, 'The left hand Vend then tilts 'about the center provided by the engagement yof the tipping lug 5E wit'h the tipping abutment 8. It vwill be understood, that before, during or after tilting for several reasons,

,ent nature or different size or grade.

movement, the gate 20 dotted line position, both to permit the discharge of the material from the skip and to serve .as a chute -for directing it outwardly away from the track. When the skip is returned to its original position, a seating abutment or guide 4t engages the face lla of the member 8a and guides the parts into their original --position in which they are shown in Figures 5 and 10.

It will also be understood that if it is desired to provide a skip which tilts at both ends, the abutment assembly 7a shown at the right hand end of Figure 5, including 8a, 9a, etc. is reversed,

may be released to its so that the face lla will face outV instead of in. Y

Then in the place of the seating guide 40, a second tipping hook assembly 30, 3| is secured to the bottom of the skip. A separate hoist orlifting means is provided for each end of the skip, and

an assembly is thus provided which permits a skip, having a releasable door at each end, to be tilted selectively to dump at either side of the car'or track. Y

Itwill be realized that whereas I have described and illustrated a practical and operative device, nevertheless many changes may be made in the size, shape, ,number and disposition of parts without departing from the spirit of my invention. I wish, gtherefore, that my description and drawings be taken asin abroad sense illustrative or diagrammatic, rather than asllimiting me to my precise showing. 5 ,y Y

For instance, whereasI have shown my skip or skips as applied to a flat top rail car, I may employrit on other supportsor carriers. I may employit for exampleon motor trucks. .It will be understood also that thehingeand .locking degtails can be widelyvvaried. The use and operation of the invention are as follows: c

Assume that it is desired to handle bulk materials, asA for example in connection with a mine. One or more open .topped skips areV mounted on any suitable support such asa motor truck, or preferably a railroad car.. The skip may receive the material to bev handled, which is delivered through into the openA top of the, skip fromk any suitable delivery or dumping or conveyor means. The weight of the material Ainthe skip is-supported by the top floor of the car and also by the blocks 5. The car, after the skip orsk-ips vare filled, is moved to any suitable point kof disposal and the skips are dumped by merely raising the end of the skip opposite to the door which is to be opened. While the particular hinge means -Inay be widely varied, I find that the hinge abutments herein shown, including the ltipping stop v8 and the tipping lockl 30 are highly advantageous In the first place they are adapted to be used at each end of a double ended skip, and can alternatively serve as a tilting abutment or vhinge and as a positioning or seating means.v Also they are so formed as to prevent unintended endwise movement of the skip along the car when the skip is not tilted, because of the outwardly extending projections 33. An ad- .vantageof employing a plurality of skips is that I may simultaneously handle materials of differ- It is thus possible to deliver a number of materials or grades or sizes Yof material uponfa single flat car, they being picked up at the same point or various ipoints, and being discharged either at one point or at various points.

My structure lends itself well to the employ- Ymen-t of-'lighter materials or metals, Vsuch-as 4. aluminum, and is so proportioned and designed that it can be made of aluminum or aluminum alloys. It will be understood, however, thatI do not wish to be limited to the use of anyparticular material or metal, as a wide range of metals may be employed.

I claim:

l. A hinge and abutment-connectionfor a skip including a tipping stop memberadapted to be mounted upon a support, said stop member having an upwardly extending stop with a partly cylindrical concave pivot surface and a tippingrlhook adapted to -bemou'nted on the lower side of askip and including a downwardly extending hook portion having a lowerco-nvex face partly cylindrical in formA and-.adapted to engage the partly cylindrical convex surface of the stop member in piv'- otal relationship, the tipping hook and the tipping stop member having portions which interpenetrate and are adapted vto prevent their relative movement along the axis of tilt of the skip `and a back stop' element on the tipping stop lmember adapted to limit' movementof 'the ytipping hook away from the tipping stop. i

2. In combination, a skip including side and bottom Vwalls of sheet metal, a plurality of reinforcing members extcnding around theroutside of the skip in contact with the side vand bottom walls, a platform,v adapted to support'` the skip,

a plurality of spaced cushion membersextending upwardly from the platform into the'spaces be` tween the reinforcing members, the depth of the reinforcing members and the cushion members being equal, the space between the cushion meinbers being just suflicientto permitthe reinforcing members to enterbetween them, whereby ythe bottomfloor of the' skip, when it is onV the Vplat form, is supported substantially throughoutits entire area upon the cushion membersiand the reinforcing members. 1 f v 3. In combination, a skip including side and bottom walls of sheet metal,Y a plurality fof reinforcing members extending around the" outside ofthe skip in contact with the side and'bottorn walls, a platform adapted to support the skip, a

plurality of spaced cushion members extending upwardlyfrom the platform'into the spaces between lthe reinforcing members, thegdepth ofthe reinforcing members and `thecushion members being equal, the space between the cushion memrotational movement of the skip with respect to` the platform, the space between the cushion members and the reinforcingY members being such that rotational movement may take place withoutV interference between the Vcushion and reinforcing members. l

4., In combination, a skip including side and bottom walls of sheet metal, a plurality of rein# forcingrmembers extending around'the outside of the skip in Contact with the siderand bottomY walls, a platform adapted to support ,the skip,

a plurality of spaced cushion members extending upwardly from the platform intoy the spaces between the reinforcing members, the'depth of theV reinforcingrmembers and the cushion members being equal, thev space between thecushionmem# l bers being Yjustsuiicient to permit the reinforc-V ing members to enter between them, whereby the bottom floor of the skip, when it is on the platform, is supported substantially throughout its entire area upon the cushion members and the reinforcing members, means interposed between the skip and the platform adapted independent of the reinforcing members and the cushion members to prevent movement of the skip with respect to the platform in a direction perpendicular to the cushion members.

5. In combination, a skip including side and bottom walls of sheet metal, a plurality of reinforcing members extending around the outside of the skip in contact with the side and bottom walls, a platform adapted to support the skip, a plurality of spaced cushion members extending upwardly from the platform into the spaces between the reinforcing members, the depth of the reinforcing members and the cushion members being equal, the space between the cushion members being just suii'icient to permit the reinforcing members to enter between them, whereby the bottom floor of the skip, when it is on the platform, is supported substantially throughout its entire area upon the cushion members and the reinforcing members, means interposed between the skip and the platform adapted independent of the reinforcing members and the cushion members to prevent movement of the skip with respect to the platform in a direction perpendicular to the cushion members and fulcrum means interposed between the skip and the platform to define a pivot line about which the skip may rotate, the clearance between the cushion members and the reinforcing members being such that rotation may take place without interference between them.

6. In combination, a skip including side and bottom walls of sheet metal, a plurality of reinforcing members extending around the outside of the skip in contact with the side and bottom walls, a platform adapted to support the skip, a plurality of spaced cushion members extending upwardly from the platform into the spaces between the reinforcing members, the depth of the reinforcing members and the cushion members being equal, the space between the cushion members being just sufficient to permit the reinforcing members to enter between them, whereby the bottom oor of the skip, when it is on the platform, is supported substantially throughout its entire area upon the cushion members and the reinforcing members, means interposed between the skip and lthe platform adapted independent of the reinforcing members and the cushion members to prevent movement of the skip with respect to the platform in a direction perpendicular to the cushion, the skip being free to be raised vertically from the platform without interference by any of the elements interposed between the skip and the platform.

7. In combination, a skip including side and bottom walls of sheet metal, a plurality of reinforcing members extending around the outside of the skip in contact with the side and bottom walls, a platform adapted to support the skip, a plurality of spaced cushion members extending upwardly from the platform into the spaces between the reinforcing members, the depth of the reinforcing members and the cushion members being equal, the space between the cushion members being just suil'icient to permit the reinforcing members to enter between them, whereby the bottom floor of the skip, when it is on the platform, is supported substantially throughout its entire area upon the cushion members and the reinforcing members, means interposed between the skip and the platform adapted independent of the reinforcing members and the cushion members to prevent movement of the skip with respect to the platform in a direction perpendicular to the cushion members and fulcrum means interposed between the skip and the platform to define a pivot line about which the skip may rotate, the clearance between the cushion members and the reinforcing members being such that rotation may take place without interference between them, the skip being free to be raised vertically from the platform without interference by any of the elements interposed between the skip and the platform.

JOHN W. BURNETT.

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

UNITED STATES PATENTS Number Name Date 607,785 Traux July 19, 1898 757,753 King Apr. 19, 1904 884,091 Johnson Apr. 7, 1908 1,089,964 Rice Mar. 10, 1914 1,187,593 Wright et al. June 20, 1916 1,224,404 Murphy May 1, 1917 1,381,495 Pearson June 14, 1921 1,393,169 Schlatter et al. Oct. 11, 1921 1,563,830 Brown Dec. 1, 1925 1,712,534 Walsh et al May 14, 1929 1,909,341 Galanot May 16, 1933 1,972,043 Flowers Aug. 28, 1934 2,063,544 Flowers Dec. 8, 1936l 2,181,629 Slaker Nov. 28, 1939 2,311,501 Zoldok Feb. 16, 1943 FOREIGN PATENTS Number Country Date 623,454 France Mar. 21, 1927

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