US1335697A - Flight attachment for conveyer-chains - Google Patents

Description

R. W. PATTEN, D. GYDAVIS AND E. L. BURLEIGH.

v FLIGHT ATTACHMENT FOR CONVEYER CHAINS APPLICATION FILED MAR. 8, 191B. RENEWED FEB. 6, 1920. 1,335,697.

Patented Mar. 30,1920.

.. 4 glu'iltuhus fiat-L071 11C faiteaw e9 .DaaicL Gl- ,Dauzls P Edwavd, L- p UNITED STATES PA :RALPI-I w. PATTEN, DAVID e. DAVIS, Anniinwrinn L. avers on, or sonanron, rnNnsYLvA1\TI,e.-1 w

FLIGHT lirrnoiiivrnivr roe. Contreras-creams. i

I s ecificati n o Le -jj Patented Mar. 30,1920.

" Original application filed December 22, 1917, Serial 370.2%,466. Divided and'this application filed-'March 8, 1918, Serial No. 221,303. Renewed February 6, 1920. Serial No. 356,420.

' Attachments for Conveyer-Chains; and we.

To all whom it may concern: I I

Be it known that we, RALPH W. PATTEN, DAVID G. DAVIS, and EDWARD L. BURLEIGH, citizens of the United States, residing at Scranton, in the county ofLackawanna and State'of Pennsylvania, have invented cer-- tain new and useful Improvements in Flight do hereby declare the following to be afull,

clear, and exact description of the invention, such as will enable others skilledin. the art to which it appertains to make and use the same. I V

i This invention relates to chain-conveyors, and particularly to flight and link structures thereof.

In the making of repairs and replacement,

' of parts and the adjustment'of thesame,

much valuable time is. lost. because. of the necessity of entirely removing a link or linksfrom a chain therefrom, and again because it is necessary to slacken up the. chain-belt by considerably running up the foot or tightening wheel to permit the removal of a. link. i

It is, therefore, among the more important objects of this invention to provide a chain and flight structure whereby the time: taken for making various adjustments. or replacement of parts is materially shortenedythe necessity of entirely removing a .hnk with a flight is entirely eliminated, and the desired security and rigidity of connection is accomplished. v

With these, .and other objects in View as will be readily manifest to those skilled in the art, the invention consists of the construction, combination, details, and the arrangement of parts as more fully set forth in the following specification wherein one embodiment of the invention is described as shown in the accompanying drawing, in which Figure 1 is a bottom plan view of two links and a flight.

Fig. 2 is a section on line 2-2 of Fig. 1. Fig. 3 is a side elevation of Fig. 1. Fig. 4 is a detail front perspective view of the chair.

The chain is made of a plurality of links I shown here as comprising a center, female block link 2 of oblong elevation with rounded ends 3, and sides indented at 5, the shoulders 6 being square, and as outside complementary paired link sections 7-. The

. sections? are duplicate, and, therefore, are interchangeable, and each is of such con struction that it may be" reversed end for end if desired. 4 v 1 Each of the center or block links 2 and the side link sections 7 are of hollow form; that is, each is provided with a slot-of-slots 8 of suitable length and diameter to receive a; cross-pin 10,. having a diameter. approxi mating the width of the slots 8, "this pin. having at each end a T-head 11, which are parallel to each other, and extend in a com mon plane diametrically across the axis. of

thepin 10, the length of the headsll being here shown as substantially. equal to the width of the link components of the chain, the ends of the outside or male link section 7 being provided with respective seats 12 of a width substantially equal to the width. of the T-heads 11 of the pivot pins, and into which the projecting portion of the heads are adapted to snugly seat when the rounded ends of each of the links 2 and 7 are broughtinto concentric relation as by the pulling rapid removal or dismounting of a conve eri flight from a'conveyer chain, and tot at end our invention consists 1n the-provlsion of a unitary or integral chair, generally in dicated at15, and comprising an upright flange or seat 16, from which rearwardly projects a base plate 17 adapted to rest upon the top of oneof the center or female block links and having downwardly projecting parallel spaced ears 18 of a depth below the base 17 substantially equal to the thickness i of a center link, and of a length substantially equal to the length of the indented recesses or seats 4 on the sides of the bloc'k linkso as to snugly fit against the shoulders 5 thereof, so that these two parts when a The insidev sembled are rigid and secure;

surfaces of the ears 18 are spaced apart obviously a distance substantially equal to the width of the central portion-of the block 2 between the parallel longitudinal surfaces of the seats; l fl,'and if desired, bracing To secure the chair 15 to its center link 2, the cars 18 are shown as provided alined polygonal apertures, havlng a diameter substantially equal the width of the slot 8 in the center block or link, and through this.

slot and these apertures there may be passed a polygonal bolt 21, having a head 22 on one end and a threaded portion at its opposite end to receive a nut 23 passed over the projecting threaded portion of the locking bolt 21. The polygonal body of the bolt fitting the slot of the center block 2 prevents the bolt from rotating, and it also snugly fits the apertures in the depending ears.

This chair is provided at its lower portion, and projecting in front of the upright seat 16., with a rectangular shoulder 25, and in front of this there is spaced a hook portion 26, between which and the face of the shoulder '25 is provided a space to receive the lower edge of a washer plate 27, perforated at 28 to receive fastening bolts 29, which are adapted to pass through a flight plate 30, having a notch at 31 to pass over the shoulder 25, which latter locks the flight plate 30 against shifting movement when it is clamped between the washer plate 27 and the upstanding seat 16 of the chair by the bolts 29. The lower edge of the flight plate 30 rests, upon a forwardly projecting shoulder '82 extending along the front edge of the base of the chair, and carries at its transversely projecting lower corners a set of removable and duplicate wearing shoes 33 which are detachably secured to the plate 30 by bolts 34.

From the above it will be'seen'that we have provided a unitary chair which is adapted to be securely and rigidly mounted upon a central link of a chain conveyer, and is readily detachable by the simple removal of the bolt or bolts fastening it to the center block link, and it will be seen that it is not necessary to remove a link or links off the chain in order to remove the flight chair from the chain, nor is it necessary to remove the chair from the link when it is desired to insert a new flight plate 30. By the provision offthe removable and renewable washer plates 27, the durability of the flight plate 30 is greatly increasedas the wear of the bolt heads upon this plate is entirely removed and taken by the washer plate 27.

This application is a division of our application filed December 22, 1917, Serial No. 208,466.

What is claimed is:

1. A chair for conveyer chains, consisting of a flat base member having an upstanding. seat flange with a central locking shoulder, and a removable flight plate to bear against said seat and notched to interlock with said shoulder.

- 2. A unitary chair for a conveyer flight, having an upstanding seat flange with a ledge along the edge and a retaining hook in front of said ledge, a flight plate adapted to be applied to said seat and bear on said ledge, and a washer disposed between said hook and flight plate and on which the wear of fastening means is taken. 7

3. An attachment, for conveyer chains,

comprising a chair'having a flat base portion to be transversely laid fiat upon the top of a link and having dependent perforated lugs to embrace the sides of the link, a perpendicular seat-flange on the top of the base set back from the front edge thereof to form a ledge, a lug at the central portion of the flange and ledge, and a forwardly extending hook to underhang a washer, the

flange perforated to. receive bolts for ing a plate thereto.

In testimony whereof we affix our signatures. 1

RALPH IV. PATTEN. DAVID Gr. DAVIS. EDWARD L. BURLEIGH.

attach-

Images