US2400502A - Conveyer flight - Google Patents

Description

May 214, 1945 H. w. HAPMAN 4 2,400,502

k CONVEYER FLIGHT y Filed May 25, 1942 '2 sheets-sheet 1- (Ittomegs May 21, 1946.

" H. w. HAPMAN Filed' May 25, 1942 CONVEYER FLIGHT 2 sheets-sheet 2 (Ittornegs Patented May 21, 1946 2,400,502'f" f Y conversa Filion-'rv Henry Hallman, DetroiL'Mich. e .i l Application May 25;1942;seaiiyojlmiz Y Y Aiz-Ciitims.y (cilfe-IF.) lijf v f i Y of the invention, showing aresilient wearing and The present invention relates to conveyers and more particularly, to an improved flight therefor.

The primary objectr of the invention is to provide a conveyer flight with a resilient wearing and sealing'strip carried by the edge of the flight for contactual engagement withV the conveyer con'` duit to prevent material from being lodged between the flight and conduit and causing damageV to the flight and conveyer structure. g

A further object of the invention is to pro vide a resilient sealing and Wearing strip for con'y veyer flights extending along the marginal edge of l the flight at an angle thereto, to prevent the'sealing and wearing strip from being bent orrdoubled back upon itself when an4 obstruction is'encountered in the conveyer conduit. `Y

Another object of the invention'is yto provide ja resilient sealing and wearing strip capable of be ing readily attachedl to the marginali edge of Aa conveyer flight in sucha manner that the freel edge of the strip will be presented to the conveyer v conduit at an acute angle thereto, so that material lodged in the conveyer conduit will be scooped or scraped therefrom instead of-causing 'the flights of the conveyer to be obstructed and damaged through bending or breaking.

Another object of the invention is to provide 'a sealing and wearing stripof thev above mentioned character whichjis detachably'rand revcrsibly connected to the conveyer flight and is connected thereto in such a manner as to be prevented from bending itself back when an obstruc; tion is encountered, and which is supported adjacent its free edge in addition Ato the connection with the flight to further insure against -return bending in a direction opposite to the direction of flight travel. Y

Other'objects and advantages of the invention will become apparent during the course of the Y following description of the accompanying drawn# ings wherein:

Figure 1 is a top plan view of a preferred em' bodiment of the invention illustrating awearing strip extending around the -marginal edge of the`r conveyer flight;

Figure 2 is a longitudinal cross sectional view' illustrating in detain the manner in which the resilient 'sealing and wearing strip is attached to the conveyer flight; g

Figure 3 is a transverse cross sectional view taken online 3 3 of Figure 2 looking in the direction of the arrows further illustrating the manner in which the sealing strip is positioned and pre-` sented to the conveyer passageway.

Figure 4 is a top plan view of a modified forni` 55 sealingistrip attached tooneedge of the conveyer night,y

n igure isa longitudinal central cross sectional vievvsimilar to Figure 4illustrating in detail the manner in which the' resilient sealing andl Wearing strips are attachedto the conveyerflight; and

l .Figure 6 isla, Vertical"v transverse cross sectional viwvofFigure 5 furtherillustrating,the details of const notion ofthejmodied form.

In' hefdrawi" gs wherein fo v theV purpose of illustrating rthe'ivention like reference characters-'will kb'e'femployed to designate like parts throughout, the reference character 5 in Figures A1V to 3 inclusivewill generally be employed to designate afcenveye'r of the endless chain tyi),'andY said conveyerl includes 'a' channelway Shaving 'a bottom Wall `I- and upstanding side walls 8. The entren/ 1e upper edges ofthe side walls 8 are pro- ,With .channel guides 9,-providing opposed euidefwehs lo and n between which is adapted to operate suitable conveyerv chains generally indicated by thereferencercharacter I2. Eachconveyer chain"I2.includesa pair of inner and outerY chain links I3 and connected by pivot pins I5,r

one .end'of which is provided kwith a head I6 and the oppositeend of whichisprovided with a cotterpinfor keyzI'I'to hold the pins I5 in position. Rotatablyrmountedoneach of the pins I5 ibetWeen' the inner links I3 is a roller I8 to support theendlessconveyer chain I2 inthe channelway 9 as shown in Figure 3.

Theouterlinks'll are provided with inwardly directed vlugsIS' andrlsai'dwlugs may be formedin- :.ltegral `lwith the innermostouter link and spaced so lthatthelugs willbe disposed in' opposed rela tio`nship. y The free edge of each lug is provided with a spring`strap20 secured in place by rivets or other fastening means as at 2I, and the spring strap 20 isv arcuately curved as at22 so that it may bent back'directlyunder the lug I 9. An angle portion 23 is formed in the resilient strap 20 so that the free end of the strap may project down-l wardlyas at 24. Connecting the straps20 is a f conveyer flight 25, and said spring straps are securedto the flight by suitable bolts 26 having nuts 2fllthreaded onthe opposite ends thereof. `The upper edge of each flight 25 is flanged as at 28 to extendj the diretionof conveyer travel and the margnaledge of each conveyer flight is bent rearwardlyas at 28 to form a marginal flange 30 extending at an acute angle with respect to the i conveyer passageway 2. The extreme rear edgeof the marginal flange 30 is angled asiat 3| to extend 32 so that the free ends of the bolts may extend through the marginal ange and'be held in BeltsL 34 are arranged in spaced relation and extend through the channel strip 33 and sealing strip' place by nuts 35 threaded thereon. The extreme r edges of the sealing strips31 are beveled to provide a relatively sharp edge for contactual engagement with the conveyor passageway walls 'l and S. It is to be noted that the strip 32 and channel strip 33 may be reversed when worn by simply removing the bolts 34 and positioning the channel strips 33 with respect to the marginal ange 30 in a reverse manner. l

Attention is now directed to Figures 4 to 6. wherein is shown a modied form of the invention and wherein the referencey character 40 will` generally be employed to Vdesignatefa .conveyer passageway similar to that shown inFigures 1 to 3 inclusive. The conveyer passageway in Figures 4 to 6 inclusive comprises a bottom wall 4| having upstanding walls 42 terminating in longitudinal channelways 43 providing upper and lower opposed guide walls 44 and 45. The opposed guide walls 44 and 45 are adapted to slidably receive and guide a conveyer chain generally indicated b-y the reference character 46, and each conveyer chain comprises inner and outer chain links 41 and 48 similar to the chain inks i3 and I4 shown in Figures 1 to 3 inclusive. The ends of the links are provided with aligned apertures for receiving bolts 49 having heads 50 formed on one end and being adapted to be held in place by Cotter keys or pins 5| extending through apertures in the free ends of the bolts. Secured to the outer links 48 are angle brackets 52 held in Aplace by rivets or the like as at 53, and the angle brackets are arranged in opposed relation as shown clearly in Figure 4, The inner ends of the angle brackets as at 54' are provided with downwardly depending arms 55 secured in place by bolts 56 having nuts 51 threaded on the free ends thereof. Extending between the lower ends of the downwardly'depending arms 55 is an angle bar 58 held in place by bolts 59 so that the free ends of the downwardly depending arms 55 will be rigidly connected by the angle bar 58. The lower forwardly extending edge 60 of the angle bar 58 terminates a short distance from the bottom wall 4| of the conveyer passageway and is adapted to project forwardly `in the direction of conveyer travel as shown clearly in Figure 5.

Secured to the uppermost edge ofthe angle bar 53 is a flexible resilient wear strip 6| sandwiched between the angle bar 58 and an anchoring strip. 62 which is adapted to be clamped tightly in position by means of abolt 63 extending through an aperture in the upper portion of the angle bar so that the threaded end may receive ahut as at 64. The extreme frward edge 66 of the anglel connections 63. It may be stated that the contactual engagement of the edge 66 of the angle bar 58 with the sealing and wearing strip 6| causes a flexing action of the sealing` strip and likewise, prevents the sealing strip from being doubled back upon itself when an obstruction in the conveyer passageway or conduit is encountered. Also, such contactual engagement maintains the sealingv and wearing strip at the proper angle withrespect to the walls of the conveyer conduit or passageway.

4It is to be understood that the forms of the invention herewith shown and described are to be taken-as preferred embodiments of the inventiongand that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

What I claim is:

1. A conveyer comprising a conduit having opposed channelways along each side thereof, an endless conveyer chain having inner and outer links mounted in eacih channelway, conveyer flights connected to and extending between said conveyer chains, roller members mounted between the inner and outer links adapted to travel in said channelways, said rollers being positioned in front of and in back of the points of conveyer flight connection and ,a flexible wear strip secured to the marginal edge of said conveyer flight and extending obliquely toward the conduit and arranged to project beyond the edge of the conveyer ight in the direction of conveyer travel.

2. A conveyer comprising a conduit having opposed channelways along each side thereof, a conveyer chain having inner and outer links mounted in each channelway, rollers mounted between said links for spacing said chains from the channelways, conveyer nights arranged in spaced relation between said conveyer chains and connected to the outer links between said rollers and a flexible' wear strip secured to the marginal edge of each conveyer flight and extending toward the Walls of the conduit at an acute angle with the free edge of the conveyer wear strip projecting beyond the edge of said conveyer flight inthe direction of conveyer travel.

3. A conveyer comprising a conduit, a conveyer chain mounted on each side of the conduit, conveyer nights secured to the chain and mounted in spaced relation thereon and a flexible wear strip secured to the marginal edge of the conveyer flight having its free edge projecting therefrom in the direction of conveyer travel in contactual engagement with the walls of the conduit whereby slight movement of said strip may be facilitated to compensate for irregularities in the conduit.

4. A conveyer comprising a conveyer conduit having opposed channel guides along each side, a conveyer chain mounted in each channel guide ofthe conduit, said conveyer chain having inner and outer links, conveyer nights secured to and extending between opposed outer links of the chain and mounted in spaced relation throughout the length of said chain, and a nexible wear strip detachably carried by the marginal edge of the conveyer night having its free edge projecting from the marginal edge of the flight a slight distance and extending at an acute angle with respect to the walls of the conveyer conduit in the direction of conveyer travel and in cont-actual engagement with said walls,

5, A conveyer comprising a conveyer conduit having opposed channels along the sides thereu of, a pair of conveyer chains mounted in the channels traveling along the opposite sides of the conduit, each of said conveyer chains lhaving inner and outer links with rollers therebetween y adapted to ride in said channels, conveyer flights side of the conveyer `flight in contactual engagement with the conveyer conduit.

9. A conveyer comprising a conveyer conduit,

a conveyer'chain mounted yon each side of saidr conduit, a conveyer ilightcarried by said conveyer chain in spaced` relation from the conveyer conduit, a flange formed on the marginal edge of the conveyer flight extending at an acute angle lation adapted to travel in channel guides on opposite sides of saidY conduit, strap arms depending from said chains into said conduit. conveyer ilights connecting the strap arms, and a llexible resilient wear strip detachably secured to the conveyer ight with itsV free edge projecting a slight distance beyond said ight in the direction of conveyertravel and extending at an acute angle with respect to the walls of the conduit and in contactual engagement therewith.

I 7. A conveyer comprising a conveyer conduit, a pair of endless conveyer chains mounted in parallel relation to travel in guide channels on opposite side of said conduit,'conveyer flights connecting the conveyer chains and a exible wear strip detachably secured to each conveyer ightwith itsV free edge projecting a slight distance beyond said flight in the direction of kconveyer travel and extending obliquely with respect to said flight so that the free edge of the wear strip will be 'in contactual engagement with the conveyer conduit.

8. A conveyer comprising a conveyer conduit, a conveyer chain mounted on each side of said conduit, a conveyer flight carried by said-conveyer chain, Aan angular flange formedv on 'the marginal edge of the conveyer llightv and a resilient wear strip secured to the marginal ilangeA having its free edge projecting on the opposite with respect to the conveyer conduit and a resilient wear strip detachably secured to the flange having its free edgprojecting forwardly of the conveyer flight an'd'fin con'tactual engagement with the conveyerfconduit. v y

10. A conveyer comprising la. conveyer conduit, a pair of conveyer chains mounted Vin parallel reides of the conduit, angle e conveyer chains arranged in opposed re1ation,`downwardly depending arms secured to the brackets terminating a short distance from the conveyer bottom wall of the conduit, an angle barconnecting the lower .ends of said arms and agwear strip detachably secured to the angle bar. f

1.1. A conveyer prising a conveyer conduit,

' a pair of conveyeifchains mounted in parallel relation on opposite sides of the conduit, angle brackets secured to the conveyer chains having inwardly extending arm portions, downwardly l depending straps' secured to the arm portions of the angle brackets;,1'an angle bar connecting the lower ends of saidjs'traps, the ilange of said angle bar extending in the direction of conveyer travel and a Ylexible wear strip detachably secured to the angle bar having its angein contactual engagement v'with the flexible v@gear strip to cause ,said wear strip tofe'xtend at an acute angle with y respectvto the convefyer conduit walls.

12. A conveyerfiight comprising a, pair of spaced supportingrarms, a pusher bar connecting

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