US 1556343 A
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Description (OCR text may contain errors)
Oct. 6, 192 1,55 ,343
W. E. PHILIPS PIVOTED BUCKET CONVEYER Filed Aug. 29, 1921 2 Sheets-Sheet l W. E. PHILIPS PIVOTED BUCKET CONVEYER Filed Aug. 29, 1921 2 Sheets-Sheet 2 'i m Z4 1. 20
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Patented Dot. 6, 1925.
UNITED "STATES; PATENT OFFICE.
WILLIAM; E. PHILIPS, or .cLnvE Lann, onro, ASSIGNOR fro THE srnazans CONVEYOR COMPANY, F cLEvn aNn, 01110, A CORPORATION or onro- PIVO'TED BUCKET CONVEYER.
Application and au stae, i921. Serial no. 496,318.
" To all whom it mag concern: .1
' Beit known that 1, WILLIAM E. Prrulirs,
a citizen of the United States, residing at Cleveland, in the county of Cuyahogaand State of-Ohio, have invented a certain new and useful Improvement in Pivoted Bucket Conveyers, of which the following isa full,
clear, and exact description, reference being had to the accompanying drawings. i
improvements in link vconveyers wherein dumping buckets are employed.
The'general object of the invention is the provision of a chain conveyer having simpleprovide a reinforcement member associated with extensions on the links; the axles of the buckets'being supported on the extensions.
' out-of alignment with the link'joints An additional'object of .the invention is to providesimple'nreansin aplvoted bucket conveyer adapted to cause a distribution of thefor'ces due to the weight of the loadand width of the link bar, and an inner linki the bucket.
the following description taken in connection with the accompanying drawings wherein Fig. 1 is a side elevation of a conveyer chain and buckets, showing the position of the parts when passing over a sprocket wheel; Fig. 2 is [a plan of a'conveyer embodying the features of my invenf tion; Fig. 3 is an enlarged sectional eleva tion of a supporting roll and its associated link; Fig. 4 is a in plan, through the link. and a supporting roll."
, In constructing i bucket conveyers has been the general pra'ctice'topivotally mount l thei bucketon an I considerable distance from thesldes of the This invention relates to conveyersofthe .1 type adapted to transport coal or other ma terials and is particularly concernedfwlth my invention is con- Further objectswillbeco'me apparent in cross-sectional view partly,
axle which, projected a bucket and which also served as a pivot pin for connecting the innerand outer conveyer links. "In using this c0nstruc'tion, however, special arrangement had to'be made, where the path of the conveyer was changed by passing .ov'er sprockets to obtain 1 proper clearance between the buckets and the sprockets.
In other: constructions suitable clearance wasobtained by employing apivot shaft similar to a crank shaft wherein the bucket was-mounted on an offset portionof the shaft This necessitated special mountings or;
special bearings" on the bucket; This ar rangement also causeda greater portion of the load to be carried by the inner links of the conveyer chain thus in time causing a buckling of the'links as the various parts wore away. t
To overcome the objections noted I have provideda simple reinforcing means for a conveyer chain by which it is possiblefto ob tain particular advantages over those types of conve'yers wherein the bucket is mounted on 'the 'link pin and also to retain the advantages of-the constructions whereinthe bucket axis is offset'from. the link 1' ointi" In Fig. 2 I have illustrated, a" conveyer of the'bucket type wherein I havearranged' double link roller'cha ins on each side of the buckets "These chains are composed of outer ;link plates lQ'having atone endan offset portion extending a distance equal to late 11 having an offset portion of, the'same length: The ends of the bars opposite the ofiset ends are mounted onasleeve member 12 having a length equal to the width ofthe' chain intermediate of'the link joints, while the offset ends ,of the links are mounted on a stud member 14- which is carried by' the sleeve 12. Suitable rollers 16 having projecting hubs 17 serve to maintain thevlinks in properly spaced relation.
The stud member 1 1 i may have an upset end 15 adaptedto limit itstransverse movethe pivot point upon which I prefer to rigidly mount a reinforcing member 18. The member 18 may be secured to the inner link by any convenient means, as for instance, suitable rivets 19 and 20.
The particular function of this reinforcing member is to distribute the load exerted upon the extension 13 of the link to the stud 14 and to the outer links 10 and also to provide a suitable bearing for demountable bucket supporting means. The reinforcing member may therefore be of suflicient length to extend past the pivotal axis of the links so that the stud member 14 may be secured thereto. I thus obtain a load bearing contact on the inner end of the stud equal to the combined Width of the inner link 11 and the reinforcing member; the stud being rigid withthese members.
To prevent any turning of the stud I have provided a slotted projection 22 on the reinforcing member in which the retaining pm 21 may be positioned. A very advantageous feature of my invention is that the buckets 27 may be quickly and readily removed from the bucket supports.
To simplify the manufacturing of the bucket support I have arranged the body portion of the reinforcing member 18 in the form of a U-shaped rib 25 surrounding an open recess 24, on the outer face of a plate portion with which the rib is integral. This recess extends a considerable length along the extended portion of the inner link bar. The rib 25 may taper inwardly and merge in the stud engaging end of the reinforcing member.
The end of bucket shaft or support 26 I may be mounted in this slot; the slot termlnating in a ribbed semi-circular opening which serves as a bearing for the end of the shaft. To rigidly maintain the shaft end in a locked position I have provided a straight pin 29 which may pass through the ribs of the reinforcing member and engage the end of the shaft along the surfaces of a groove formed therein, thus maintaining the bucket shaft in rigid relation with the reinforcing member and preventing any transverse shifting thereof.
It is quite evident that any individual bucket may be removed from the conveyer or remounted thereon by the removal or insertion of pins 29, which enables the removal of the shaft 26 from its bearing 28 on the bucket, it not being necessary to disconnect any other parts of the conveyer. It will also be noted that the stud 14:, the link 11, the reinforcing member 18 and the bucket shaft 26 are all rigidly assembled.
The greatest deterioration in chain con veyers is caused by the rapid wearing away of. the links, pivots and parts associated therewith due to the grinding action of grit and dust and expensive bearing constructions have been provided to overcome this destructive wear.
By providing efficient lubricating means I have found that the dirt and dust may be forced out of the link connections and that the wear is thereby greatly reduced. To lubricate the various parts I have mounted a suitable coupling nipple 30 on the outer end ofthe stud 14: which is associated with a passageway 31 formed in the stud. A radial passageway 32 formed in the stud 14 and sleeve 12 provides communication to a lubrication chamber 33 formed in the roller 16, whence a high pressure gun connected to the nipple 30 may force the grease or other lubricant into the chamber 30 and along the bearing surfaces of the sleeve 12 and roller 16. As the sleeve extends to the outer link bars, the lubricant may also be forced between the sleeve and stud and between the contacting surfaces of the links 11. Lubricant may likewise be forced outwardly to the contacting surfaces of the projecting roller hubs 17 and the inner surfaces of the link bars 10 and 11.
From the foregoing description of my invention it is quite apparent that any one or a number of the buckets may be quickly removed from the conveyer or be remounted thereon, While by the same arrangement I have retained the advantages of a solid offset bucket shaft. In other words I have obtained a proper clearance between the sprockets and buckets and at the same time I have distributed the forces, exerted on the conveyer by the load, equally to all of the chain links. In obtaining these various desirable features I have decreased the cost of the construction as the manufacture of the constituent parts involves only the simplest production operations. The reinforcing member as well as the roller may be rough castings made with just suflicient accuracy to obtain ease in assembling. Furthermore, by incorporating lubricating means in the roller I not only insure theproper lubrication of the various contacting parts but also provide a very effective method for cleaning the pivotal connections between the chain links and the rollers.
Having thus described my invention, I claim 1. In a conveyer of the class described, the combination of a pair of inner links, a sleeve mounted therein, a pair of outer links overlapping the inner links and overlapping the ends of the sleeve, a pivot pin extending through the sleeve and through the outer links, an ofiset bucket supporting bracket secured to an extension of one of the outer links, said bracket having a longitudinally extending slot formed therein adaptabl for the reception of an axle of a pivotally supported conveyer bucket and a pin spanning the slot, said pin being the combination of inner and outer links arranged in pairs, a bracket member secured to one of the outer links the bracket having an elongated slot formed therein and the bracket eing ofi'set relative to said link, whereby one end of the slot may be 10 opened while a Wall at the other end may comprise a bearing for a pivot bucket axle, and means spanning the slot adapted to maintain such an axle in engagement with the end wall of the slot.
In testimony whereof, I hereunto aflix my signature.
WILLIAM E. PHILIPS.