US1442292A - Chain conveyer - Google Patents

Description

Jan. 16,1923.

c. G. PFEIF'FER.

lCHAIN CONVEYER.

man MAY 22, 1922.

Patented Jan. 16, 1923.

UNITED STATES PATENT oFEicE.

CHARLES G. PFEIFFER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO SPECIALTY ENGINEERING COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

,f f a/Z whom. t 'may fonce/"n VBe it known that I. CHARr.Es (r. PFETLFER,

a citizen of the United States, residing at VPhiladelphia, county of Philadelphia, and

this type in which each link is formed withv a flangeV so that the'flanges along both sides of the loaded stretch o the conveyer may cooperate to form a trough-like structure, the flanges constituting side walls to prevent dislodgment of material` from the belt.

In addition vto the foregoing this invention comprehendsimprovements in the details of construction and arrangement of the correlated par-ts to be hereinafter set forth and particularly pointed out 1n the appended claims.

In the accompanying drawings, Fig. I 1s a viewv in topf-plan of' severalA links forming part of a chain conveyerand illustrating the embodiment therein of my invention.

Fig. II is a View in Side elevation of the links shown in the'preceding figure.

Fig. III is a view in transverse section of aconveyer structure comprising a pair of chains and an intermediate belt supported therebetween. l

Fig. IV is a view in top plan of several links showing an alternative construction.

Fig. V is a view in side elevation of the links shown in the immediate preceding figure; and

Fig. VI is a View in transverse section of a conveyer embodying the modified-links.

With reference to Figs. I, II and III of the drawings, 10 indicates as an entirety my improved link, the specific structure of which includes a pair of side bars 11 and 12 connected at one end by means of an in- .,tegral sleeve 13. The side bars converge CHAIN CONVEYER.

Application l'ed May 22,'

1,922. serial No. 562,603.

toward the sleeve thus reducing the length of the latter with respect to the distance between the opposite or free lends of the side vbars so that theside bars may overlap or enclose the'ends of the sleeve of an' adjoining link to form the chain. the connection being established through the medium of a pin 14 suitably retained against dislodgment, and which passes through the sleeve and penetrates .the appropriately apertured ends of the Side bars. is formed on the side face of t-he bar 11 of each link and a flange 16 is formed on the top face of each bar 12 so that the flange is located in a plane at right angles to the face of the conveyer and parallel to the direction of movement.` l'Ihe flange'` follows the curvature ofthe bar 12 so that in a series of links the ends of each fiange are lapped by the ends of adjoining flanges to form a wall indicatedl generally lat 17 `in Figs. IIand III, the latter showing the assembly of a pair of 'chains anda belt conveyer. In the use of this form of linkthe connection between the edges of the belt,

designated 18 is performed through the mev dium of longitudinal strips or Iblocks y19 secured to the under side of the belt along eaclv edge and designed to be engaged by the lugs 15 of the links thus disposing the latter beneath the belt and almost wholly within the side edges thereof. 'The securing meanssuch as a rivet mayv penetrate both the lug and member 19 in order to fasten the same to the belt. This arrangement permits of the use of a comparatively wide belt in instances where the distance betvveen'the chains must remain fixed by reason ofthe immovable mounting of the sprocket wheels over which the chains pass. The flanges 15, it will be noted rise perpendicularly above the surface of the belt forming the walls 17 which enclose the edges of the belt and define a trough-like structure as shown in Fig. III.

The presence of the flanges does not inter- A lug 15' wheels or along the stretches. The materia-l carried by the belt 18 is effectively retained thereon by reason of the enclosing side WallS In instances necessitating the vuse of a narrower belt, the chain spacing ,remaining fixed. recourse is had to the form of link [the inner or adjacent sides of the chains so as to enclose the edges of a belt 2l which 1s narrower than the first mentioned belt 18 by an amount equal approximately to twice the distance between the side bars l1 and 12 of a link. The assembly is shown in Fig. VI

' from which it will be noted that the belt,

in this instance may be secured directly to the face of each lug l5. The links are located entirely beyond the edges of the b elt as distinguished over the first arrangement described. It Will be apparent that the troughing flanges may be embodied in any other forni of link than that described above and hence I do not limit myself to the exact construction of the link but reserve the right to construct the combination of the trough* ing flange With any type of link adapted to cooperate with the flange'in performing the contemplated result.

Having thus described my invention, I claim: y v

l. A conveyer comprising acontinuous flexible supporting element, and an articulated means traveling and cooperating therewith to forni continuous retaining Walls preventing dislodgment of material from the supporting element. l

2. A conveyer comprising a continuous flexible supporting element, and means com- 'prising a series of rigid elements in articulated relation cooperating with each other to form a continuous retaining Wall adapted to prevent dislodgment of material from the supporting element.

3.' A conveyer comprising .a continuous flexible supporting element, an articulated guiding element movable therewith, and means forming part of the latter to define a continuous retaining Wall preventing disa guide for the edge of the supporting element, and a series of flanges, one formed with each link cooperating to define a continuous retaining Wall preventing dislodgment of material. from the supporting element. y v

6. A conveyer comprising a belt, a pair of chains one for each edge of the belt, means on each link affording connection thereof with the belt, and a flange on each link, said 'flanges cooperating to form retaining Walls along the edges of the belt.

7. A chain link for conveyers comprising, side bars, a cross connecting member, a flange formed on one of said bars to provide a retaining Wall, and a lug formed on'onc -of said bars for attachment to a conveyer.

8. A chain link for conveyers comprising,

a pair of side bars in converging relation, a sleeve connecting their adjacent ends, a lug formed .with oneof said bars for attachment to the edge of a conveyer, and an upstanding flange formed. with one of said bars to provide a retaining wall.

9. A conveyer comprising a flexible belt,

- a chain secured to each edge of the belt, comprising links, and a rectangular flange formed 1 With each link of the chain, said flanges cooperating to form retaining Walls the upper edges of which are straight.

In testimony whereof, I. have hereunto signed my name atv'Phila'delphia, Pennsylvania, this 16th Vday of May, 1922.

CHARLES G. PFEIFFER.

Witnesses:

JAMES H. BELL, E. L. FULLERTON.

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