US1685112A

US1685112A - Attachment for chains

Info

Publication number: US1685112A
Application number: US110860A
Authority: US
Inventors: George W Wilmot
Original assignee: Wilmot Engineering Co
Current assignee: Wilmot Engineering Co
Priority date: 1926-05-22
Filing date: 1926-05-22
Publication date: 1928-09-25
Anticipated expiration: 1945-09-25

Description

Patented Sept. 25; 192.

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ares; Frienonenw. wrmv'ror, or HAZLETGN, P'EnnsYtvAnIn,;Assienon TO: WILMOT ENGI- NEERING ooMPAnY, or HAZLETON, rannsrwmm, n oonronarron or rnnn- SYLVANIA. V 1

ATTACHMENT- Application filed May 22,

My invention relates to attachments for chains employed in heavy duty work by means of which flights, buckets or the'like may be mounted at intervals upon such chains; V i

The general object of the invention 1s to provide a construction comprising a chain vand an att'achn'ient, the said chain and attachment being provided with a. novel construction of means which combine and cooperate to produce a more rugged and strong construction than heretofore has been practical.

It also i's an object of the invention to provide novel means whereby additional bearing contacts between the attachments and the 'chain'structure maybe obtained.

Another object of the invention is .to provide a construction of the character indicated having means ;whereby the application of the attachment to the chain structure is facilitated. p r i To these and other ends the invention co1nprehe'nds the construction and arrangement of parts hereinafter described in detail, particularly pointed out in the claims and as illustrated in the accompanying drawing forminga part of this specification and'in which I have shown one form of a convenient embodiment of the invention How- 7 ever, it will be understood that the invention is susceptible of embodiment in other formsof construction than-that shown and that changes may be made in the details of construction within the scope of the claims without departing from the principle of the said invention. 1 I t In the drawing I Fig. 1 is a view in vertical longitudinal section of a portion of chain upon which mounted an attachment embodying the invention, the said chain also beingfprovide'd with means for cooperating with certain parts "of the said attachment;

Fig 2 is a sectional view taken in a plane at right angles to thatinrwhich Fig. 1 is tal'ren;

Fig. is a transverse sectional view taken I on the line 33 of Fig. 1;

Fig. 4c is atransverse sectional view similar, to that of f3, from one oi. which attachments thebraeket is omitted; and

Fig. 5 is a view in inside elevation ofon'e of the'attachments. Y

' Upon reference to thedra'wing it will be son aniline. 1926; Serial No; 110,860;

noted that the chain comprises single or solid links 1 and double links' comprising

side members

2 and 3 andthat the said links are" connected by pintles 4c in the usual known manner. The" single and double links are, as usual, arranged in alternate relation with respect to each other. The

solid links are provided respectively with horizontal longitudinally extending slots 5 across which bars or webs 6' extend. The bars are located at about the middle of the said links.

In the construction as illustrated the corners or those cross bars are rounded 1 oil so that in cross-section the said bars are of oval shape; The attachments heretofore I referred to respectively comprise a base por tion, 1'Ohaving inwardly extending flanges or ribs ll 'near the base edge thereof. These" f flanges are each provided with elongated cut-out portions or. notches 12 whicht'en nnnate at one end madJacent relation to a cross web v13 which extendsbetwecn the flanges or ribs 11; The ends of the said out out portions ornotches adjacent the web or crossrib ll are rounded, and said rounded" i eiiect continues along the adjacent edge poi" tion of the rib 13 so as to form a seat 1 1 for engagement with one rounded cornerportion of theflcr'oss bar 6. Thorelationship ofthe web of an attachmentto the cross bar 6 is'clea'rly shown in 2 of the draw ing. 1 The base portions- 10 of the attachments are provided with openings 15 through which bolts 16 are adapted to extend for securing the attaclnnents to a solid link 01'' link the flanges or ribsl l project into the slot 5 of the solid link of the chain to'which they may be; applied. hnkthc curved seats 14 of the two attach ments "contact with the-rounded corner 'por v .tions of one edge of a cross here. The base portions'j "of the attachments are provided with semicircular seats 22 which contact with a pintl'e 4, as is clearly shown in Figs;

When applied toj a 1 and 2 of the drawing. It will be seen, therefore, that each attachment is provided with two bearing portions which contact with portions of the chain structure, which contact portions receive the force transmitted to the attachments from a flight or bucket which may be mountedupon the brackets 23, of usual construction, which form integral parts of theattaehments. The flights, buckets, or the like are adapted to be secured to the brackets 23, the latter being provided with widenediace-like portions which arev adapted for that purpose.

The slots 12 are elongated, as indicated in the drawing, for the purpose'of facilitating the application of the attachment to the chain. It will be observed that the tongue-like extending portions 21, when the attachments are applied to the chain, are located underneath the ends. of the side members or bars 2 and .3 of a double link whirh is connected by a pintlefi to the solid link upon which the attachments are a mounted If the elongated cut-out portions or notches 12 were not provided, the

wvith a bracket. Such a construction or-arrangement is illustrated in Fig. 4,-in which one only of the attachments includes a "bracket 23. For the purpose, however, of

securing the said attachment in place upon a link 1 I have provided a cooperating memher or element 25 of the same structure as the base portion of the attachment shown in the preceding figures of the drawing. The inner side of the said member 25 is provided with inwardly projecting flanges or ribsll, identical with the flanges or ribs correspondingly numbered in-the preceding 1 figures of the drawing.

a construction in which a plurality of contact surfaces are provided between'the attachments and the chain structure for resisting forces which may be imposed upon the said attachments in the use of the same.

One of these points of contact is between an intermediate portion ofthe attachment structure and an integral portion of a link,

. while another of the said contacts is with an end ofthe attachmenttand-a pintle ofithe chain structure, as a result of which the entire force or load "imposed upon the at-- tachment is not transmitted directly to an By my invention I am enabled to provide.

integral portion of a link. By'reason of the arrangement and relationship of the parts as illustrated and as described a structure of great strength and ruggedness is produced. I

Having thus described my invention, what I claim and desire to secure by Letters Patent is: 1. In combination, a chain'structure comprising single links at intervals having hor.i

zontal slots extending thcrethrough, bars extending across said slots, pintles for connecting the links of the; chain, and attach-,-

ments respectively comprising means upon their inner sides for engaging the said cross bars and. also having means adapted to engage pintles which connect one endof the respective links to which the said attachments are connected and one end *of the respective adjoining links. I

2. An attachment for a heavy duty chain comprising a memberhaving a base portion provided with inwardly extending flanges arranged in parallel relation to each other and in substantial parallel relation to :its

base edge, the said flanges being provided with elongated notches, one end of each of which terminates in a shoulder, a web extending between' the said flanges and having a surface in alinement with and of the same shape as the said shoulders, the said shoal-'- ders and the said web being'adapted to contact with a portion of a link to which the attachment may be secured, and the said attachment also having means for engaging a pintle in adjoining relation'thereto.

3, An attachment adapted to be mounted upon chain links of heavy duty chain, the said attachment comprising a base portion having inwardly extending flanges arran ed in spaced and substantially parallel relation to each. other, each of the said flanges being provided with an elongated notch, one end of which terminates in a curved shoulder, a web extending between the said flanges, one edge portion of the said web being in alinement with and of the same shape as the, said shoulders and constituting with the said shoulders a seat which is adapted to engage. a bar extending across a slot in the link of a chain to which the said attachment is adapted to be secured, and the base part of said attachment being provided with an extended portion which is adapted to contact with a pintle for connecting the adjoining link of a chain to the link upon whichthe saidattachment is mounted.

4. In combination, a chain comprising a1- ternate single and double'links, the solid links each being provided with slotsextending horizontally therethrough and each having a bar extending across said slot, pintles for pivotally connecting the said links together, the said pintles extending through the Said links, attachments, two of which are adapted to be mounted upon any selected solid link, the said attachments having inwardly extending flanges spaced from each other and extending lengthwise thereof, the

said flanges being adapted to be inserted 7 into the said slot and the flanges of the two attachments upon a link facing toward each other and the said flanges being provided with elongated notches, Webs extending between the said flanges, one edge of each Web being flush with the shoulders terminating v one end of each of the 'notches'of a pairiof notches, the said shoulders and the said Webs adapted to contact With the said cross bar when the said attachments are mounted on a link, and each of the said attachments being provided With extensions which are adapted to engage one of the pintles connecting the solid link upon which the said attachments are mounted With the adjoining links, and means for securing the said attaclnnents to said solid link.

5/ An attachement adapted to be mounted upon a selectedlink of a heavy duty chain, the said attachment being provided With a contact portion intermediate its ends for contacting With a portion located intermediate the opposite ends of said link, the said at one of its endsfor'contacting with an element for connecting the said link to adjoin- I GEORGE WILMOT. I

portion being integral with and, extending transversely of said link,and With a portion