US1182458A - Conveyer-flight. - Google Patents

Description

T. A. COLEMAN.

CONVEYER FLIGHT. APPLICATION FILED FEB. 10.1915.

1., 182,458. Patented May 9, 1916.

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I NIH! T. A. COLEMAN.'

CONVEYER FLIGHT.

APPLICATION FILED FEB. 10, 1915. 1,182,45. Patented MayQ, 1916.

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THOMAS A. COLEMAN, OF V REDENZBUEGH, ALABAMA. ASSIGNOR OF ONE-HALF TO PETER VREDENBURGH, JIt., F VREDENBUBGH, ALABAIIIA.

CONVEYER-FLIGH'I.

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Specification of Letters Patent.

Patented May 9, 1916.

Application filed February 10, 1915. Serial No. 7,276.

i the town of Vr'edenburgh, county of Monroe,

a'ndState of Alabama, have invented a certain new and useful Improvement in Conveye'rF lights, o'fwhich the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference "being had to the accompanying drawings, forming part of this specification.

My invention relates to flights for'chain conveyers of a type commonly employed in connection with the various mills for the purpose of conducting away scrap or refuse material.

j T he principal objects of my invention are, to provide a form offlight' which may be easily manufactured and supplied "at low cost {which obviates the necessity of manufacturing a varietyof types; which may be used on either the right side or the left side of the chain; which does not require the use of any rivets or 'bolts;'-and which may be readily attached to the chain withoutrequiring the chains beingslackened;

'Other objects willbe obvious or hereinafter/pointed out. j P

In thedrawings, Figure 1 representssa plan view of a portion of a conveyor equipped with my improved form of flights.

Fig. 2 is a detail illustrating the mode of applying the flightto the chain- Fig. 3is a detail showing the rear portion of a flight as it appears when attached to "achain. Fig. 4 is a perspective illustration'of the flight. Fig. 5 is a different perspective illustration of the flight. Fig. 6 is a top view of a modification. Fig. 7 Fig. 6. .7 I I As is well known in the art in connection with many mills, a 'conveyer is employed isa section on line 7-7 of which consists generally of a chain or similar flexible member which is moved longitudinally by a suitable mechanism, and'which carries flights projecting either at one or both sides thereof and traveling in a trough or chute. Material delivered into the chute is carried forward'by the flights in the direction of movement of the chain to the desired,

point of delivery. j I

In Fig. l of the drawings, Ihaveillustrat'ed a portion of such conveyor in which 1 represents the chute or-trough, 2 thechain,

. onthe longitudinal aXisof the flight.

4 a sheave over which the chain travels, and 5 flights which are attached to the chain. Various forms of flights are in use, some of which require the use of bolts, rivets, or similar fastening means to secure them to the chain, and other forms which, while not requiring the use of rivets or bolts, require that the chain be slackened in order that they may bekattached thereto. Because of the nature of the material which these conveyers are required to handle, and by virtue of the fact that the chains are customarily long and the chains and actuating mechanism necessarily heavy, the consideration of repair is an important one and one which must be frequently met in practice.

It is my purpose to provide a form of flight which be attached to the chain without the use of any separable fastening means, and which may be attached to the chain without requiring any slackening up of the same, which latter is attended with considerable difficulty due to the weight of the chain and variousconveyer parts.

My improved flight is cast integrally of malleable iron and is formed with the customary wing 6 which projects to the side of the'chain and'cooperat'es with the trough or chute into which the material isdelivered. The wing 6 projects from a body portion 7 which on the side opposite the wing terminates in a butt member 8. Adjacent the such as will permit its being introduced through a link of the conveyor chain, the thickness between the Stop and bottom grooves issuch as to permit "the groove portion to turn a quarter revolution in the link A part ofthe body portion 7 extends to the rear of the wing memberfl and of the :butt memher 8, and isprovided with the lugs 11 which are spaced so as to fit between the sidesof the link and makeclose contact therewith. Adjacent the lugs 11, the body portion 7 forms bearing shoulders 12 which arefadapted to abut the link. The portion of the butt member 8 adjacent , thegrooves 9 and 10, likewise forms bearing shoulders 14 which are adapted to abut the opposite side of the link.

In attaching the flight to the chain on the right hand side thereof, the flight is turned I with its face downward, and the butt portion 8 introduced through the link. The flight is then turned slightly out of perpendicular relative to the chain, and then is rotated on its longitudinal axis so as to bring the face ofthe wing into position perpendicular to the bottom of the chute. This brings the lugs 11 into position where they may be introduced between the sides of the link by swinging the flight to bring the wing into perpendicular position relative to the chain. T he lugs 11 are then bent over by hammering so. as to engage the sides of the link, as best illustrated in Fig. 3, which causes the shoulders 12 to firmly abut the lateral portion of the link, and secures the flight in place.

This operation also causes the bearing shoulders 14: to abut the link on its opposite side.

' In operation,when theflight encounters material on the chute,,the pressure tends to wedge the flight more firmly in place, due

to the leverage resulting from the disposal of the bearing shoulders relative to the wing. The bearing shoulders on the butt portion 8 being substantially in line with the wing, and the bearing shoulders 12 being behind the same, it will be seen that the pressure of material against the wing forces the bearing shoulders let and 12 firmly against the opposite sides of the link, and relieves the lugs 11 of all stress. r

In using the flight on the left side of the chain, it is turned with its face upward so as to permit the introduction of the butt portion 8 through the link and then rotated and secured in position as above described.

I It is obvious that the form inipartedto the butt portion by the grooves 9 and 10 enables this flight to be attachedv to links of difl erentpitch. Hence the manufacturer requires patterns only for different sizes of chain, and not for-different pitches.

It is obvious, moreover, that it is not necessary to supply rights and lefts as the same flight may be used on either side of the chain. These manufacturing considerations are of importance when it is remembered that while there are four or five sizes of chain commonly employed, the pitch of the links varies to a much greater extent.

I am aware that the device is capable of flight.

and 7 m which the clamping member 11 abling the use of the flight on either side of the chain and dispensing with the necessity of slackening the chain in applylng the This form is illustrated in Figs. 6

is shown in place to engage the legs of the link, being secured to the body portion 7 by the bolt 15. V

What I claim is:

1. A flight for a chain conveyer formed integrally with a body portion, a wing portion extending laterally therefrom, a butt portion extending fromthe body portion on the side opposite the wing portion, said butt portion being of a size to permit its intro duction through the link of a conveyer chain, and grooved to permit a-partial rotation of the flight on its longitudinal axis, said butt portion being formed with bearing shoulders adapted to abut one side of the link, the body portion being provided with bearing shoulders adapted to abut the opposite side of the link, andfthe bodyportion being formed with J malleable lugs which may be introduced within the link and bent to prevent their Withdrawal therefrom.

ing of an integral member formed with a body portion having shoulders adapted to abut one side of a link of a conveyer chain, a butt portion projecting laterally from the body portion and introducible within such'a link, said butt portion being adapted to permit aipartial rotation of the flight within the link and having'bearing shoulders adapted to abut the side of" the link when the flight is in operative position, a member formed on the body portion and adapted to engage the link to prevent rotation of the flight, and a wing'member extending laterally from the body portion. r

3. In combination with a conveyor chain, a flight integrally formed and having; a body portion provided with shoulders adapted to abut a side of a link, a butt portion insertible within a'link andprovided with shoulders adapted to overlap and abut the opposite side thereof upon partial rota 7 tion of the flight, members on thebody portion adapted to prevent rotation of, the flight relative to the link, and a wing extending laterally from the. body portion.

4. In combination with aconveyerchain, a flight having a wing portion'andwa butt portion extending laterally therefrom, said butt portion being insertible through alink androtatable to a position in which it over laps oppositesides of the link, said flight having a portion" for engaging the link to prevent rotation of the flight relative thereto. j 5. In combination witha conveyer chain, a flight having a portion insertible through a link and movable therein by rotation of 2. A flight for a chain conveyer consist the flight on its longitudinal axis to a position in which its withdrawal from the link is prevented, and means aflixed to the flight adapted to engage the chain to prevent ro- 5 tation of the flight relative thereto.

6. In a chain conveyer, a flight having a portion insertible through a link and partially revoluble therein on the longitudinal axis of the flight, and means attached to the 10 flight adapted to engage the chain to pre- THOMAS A. COLEMAN.

Witnesses:

PETER VREDENBURGH, Jr.,

J. L. THOMAS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington. D. C.

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