US836943A - Link belt. - Google Patents

Description

'No.fsew. PATENTED Nov. 27, 190e.

s.A B. BECK.

LINK- BELT. APPLICATION FILED 2113.27'1906.

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l UNIT-ED srnrns PATE?? STAUNTON B.'PECK, OF CHICAGO, ILLINOIS, ASSIGNOR '.IO THE LINK BELT MACHINERY COMPANY, OF CHICAGO., ILLINOIS, A CGtGP-tn IION OF ILLINOIS.'

UNK BELT.

Specification .of Letters Patent.

Patented Non. 2?, M2965?.

pplication filed February Q7, 1905. Serial No. 2417,403.

To all whom'y it may concern/.1

Be it known that I, STAUNTON B. BECK, av citizen of the United States, residingat Chicago, in the county of Cook .and State of Illinois, have invented a certain new and useful Improvement in Link Belts, ofwhich the following `1s a specification.

My'invention relates to link belts, and' particularly to the articulation or connection of the successe/links. d I

It is illustrated in the accompanying drawings, wherein- Figure .1 is aplan view of two connected links with parts broken away and others shown in section. Fig. 2 is an end elevation of the connecting part Ywith portions shown Figs.: 3 and 4 are details of modifications. lLike p arts are indicated by the same letter in all theligures.

The links shown are of the so-called openlink pattern; but it willbe understood that my invention is applicable to any type of link.

A A are the arms of the links. Each link has at its closed end the tubular portion B and at the ends of its arms the eyes C C. The

tubular portion or tube of' one link is placed between the veyes of the next link so that a uous tubular aperture is formed and ser es as a'pin-socket. In this socket' lies the loose or floating pin D.. A removable lWearing-bushing E, preferablyof' hard metal,

is -placed in the tube and like hard-metal wearing-bushings. F F are placed in the eyes.

`Grv is a cap for the end of the'socket7 provided at one end with a lip G', which takes into a'recess G2 preparedvfor that purpose in the outer portion or end piece of ther eye C. The other end or. wing G3 vof the cap Gis provided with a de ression at G4 Vto receive the head G5 of a bo t G", which passes through an aperture in the wing and inthe extension .G7 of the eye or end piece. This bolt yis drawn securely into position by the nut G8.. The cap, is preferably shaped on its side next. to the socket so as to present a relatively` small bearn g-surface' at J, and, as indicated, this shape' ay be that of a segment of a s here. f -The extension G7 is grooved, as indicated at G9, to receive the wing G3, whereby the cap is prevented from lateral or ro-l When these Acaps are f fposition, the floating-pin issecurely .in-

permanently In the modification' shown in Fig. l the cap N' is let into a recess `N about the end of the socket and is secured to the pin by the screw-bolt N2, whose head N3 lies in the-re-v cess N4 in the cap.

It will be understood that the particular forms, arrangements, sizes, and proportions of the 'several parts used can any or all o f them be greatly altered without departing from the spiritol my invention. My purpose is here simply to show in'a, diagrammatic manner, as it were, means for accomplishing the desired result according tomy invention..

A floating pin'is desirable for' many reasons and among others because it wears evenly and lasts for-a long time. This is due to-the factthat its actual bearing-surface isv constantly shifting. The difficulty with such .pins is that they are likely to escape from their sockets. y

The device of this a plication is designed particularly to be used in a chain-and'ebuck'et dredge or such like apparatus. Wvhenused upon a dredger, the service which the chain renders is unusually difficult and exacting. The dredging device isplunged downinto materials which are often closely compacted and difficult to disturb, and in addition the successive bucketslon' the chains travel/about I their guiding 'parts under great strain. The links and' buckets are subjected to a very severe pressure which tends todisplace them and any projecting part-like a socket, cap7 or the head of a bolt or a nut-is liable to be sheared away at frequent intervals,

I have endeavored to produce a very simple form of articulation 1n which the socket shall be preferably inclosed and its caps be though removably secured in position. have also provided such an articulation as is but little liable to have its parts torn away by the shearing action above referred to. I have also provided means ICD whereby the cap itself is preyented from rotating or turning, since it is,in e'ect, let into an enlarged depression which 'prevents such ros mo ment or resists such Atencen'cy'or protec s .it fromany influence' so 'to rotate at least in thelea'se o' the devicesv shown in Figs. 1,12, and. 'I he cap is dropped into a de- 5 ipression in 'the'. Outer portion of the end piece around, associated with, or opening into the socket;

I clairnv '1. In alinkb'elt the coinbinationof two perxo'- forated links associated'so that their' perforations make'g'transverse socket, with a pin in the socket, vmeans for retaining the pin in schjsocketcomprising 'an endpiece on one limi about its erforatio'n, having'an.under cut. recess and" anoutwardly'-grooved and perforated extension," a cap 4provided With a' Qdy to close the end of the socket, there bea projection like the segment of a sphere on'such body'witlin'the socket in opposition,

'zo to the end of the pin, a lip to engage the re- Vcess, a perforated vwing having on its'outer .surfacea depression'and adapted" to be re- I "dinto the. groove, and' a bolt which through the perforations in extension nd and whose head 'lies' in the depresasi'on. v

2. In a link belt the combination of two perforated links associated so that their per- 3o pin in the socket, means for retaining the pin in suchl socket com rising an end piece on one aboutits e oration, having an undercut recess and) an voutwardly-grooved and perforated' extension, a cap .provided with a age the recess,'a perforated Wing having-on its outer surface a. depression and adapted to .be received into the groove, and a bolt which vpasses throughthe perforations in yextension and 'wing' and Whose head lies in the depression.-

f3. 'In a link belt. the combination of two Yperforated links associated so that their per- -Iorations make a transverse socket, with a pin'in the socket, .means for retaining the pin orations makega transversesocket, with a odytoclose the end of the. socket, a lip to enin such socket comprising-a ca provided with a body to close the end of t e socket, a

projection like the segn'ient of a sphere on thesocket side ofthe cap and in oppositionto the end of the pin, and means for securing the cap 1 n position to permanentlyclose the 'socket end.

4. In a link belt the combination of two erforated links associated so that their erorations make a transverse socket, wiili a pin in the socket, -means for retaining the pin in such socket comprising an end piece on one link about its perforation, having an undercut recess and -a cap provided with a body to clos'ethe end of the socket, and a lipto engage the recess, and means for. securing'the cap to thel end piece at a point opposite such lip andrecess.

5. In a link beltthe combination of .twoA

erforated links associated so that their pertorations make a transverse socket, ,with a pin in the socket, means for retaining the pin in such socket comprising an end piece on one link about its perforation, having a de- -pression inits outer surface opening into suchsocket, and a cap adapted to t into such. depression and close the end ofthesocket, and means for securing the cap removably in p0- sition.

. .6. In a link belt the combination of two perforated links associated sothattlxeir er,-

forations make a transverse socket, wit a pin in the socket, means for retaining the pin in such socket comprising a cap provided with a body to close the end 'of the socket, at

least one of the opposed surfaces on the ,pin and cap being convex so yas to give a small f area of contact between said pin and cap, and m'eans for securing thel cap 1n close the socket.

sTAUNToN B. PECK.

Witnesses:

HOMER L. KRAFT, `LUcv A. FALHENBERG.

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