Abstract: A scraper blade assembly which is configured to provide a rigid material scraping edge supported on a resiliently compliant material such that the scraping edge is adapted to move in response to irregularities in an associated conveyor belt. Further, supporting structure for the resiliently compliant material is configured so as to promote an upward deformation of the resiliently compliant material when a compressive force is applied to the rigid material scraping edge to thereby form the resiliently compliant material as a supporting surface above the scraping edge when such a force is applied.

Abstract: A scraper blade has at one end a scraper tip and at the other end a mounting base. The scraper tip is outwardly tapered. The scraper blade has at least two layers of different materials. The layer of material which is facing forward, i.e. that first meets the surface to be scraped, and which is adapted to form the actual scraper tip is made of a material which is both softer and more abrasion resistant that said other layer.

Abstract: A scraping device for scraping material from a surface to be cleaned. The scraping device includes a support member and a retainer member attached to the support member. The retainer member includes a cavity adapted to receive a pad of resilient elastomeric material having a retarded resilience. A mounting member is located within the cavity of the retainer member. A scraper blade extends through an opening in the retainer member and is attached to the mounting member. The pad enables the mounting member and the scraper blade to pivot about a first edge of the mounting member between a first position and a second position, and to pivot about a second edge of the mounting member the first position and a third position. The pad biases the scraper blade with retarded resilience to pivot from the second position toward the first position, and from the third position toward the first position.

Abstract: A mounting arrangement for removably mounting a conveyor belt cleaner scraping member to a support member. The mounting arrangement includes first and second mounting members adapted to be attached to the support member. Each mounting member includes one or more apertures. A base member is adapted to be attached to the scraping member. The base member includes one or more bores adapted to be aligned with a respective aperture in each mounting member. The bore includes inwardly projecting first and second annular ribs. A mounting pin having a shank is adapted to be inserted into the apertures of the first and second mounting members and into the bore of the base member to thereby connect the base member to the mounting members. The shank of the pin includes a first annular groove adapted to receive and interlock with the first rib of the base member and a second annular groove adapted to receive and interlock with the second annular rib of the base member.

Abstract: A scraper assembly cartridge which includes a base, a bracing member which extends from the base, and a plurality of scraping elements which are fixed to the bracing member. The base of the cartridge is engaged with an elongate member which extends transversely to a conveyor belt so that scraping edges of the scraping elements are on or below a line which extends radially from a center of a head pulley to an axis about which the member and the base are pivotally movable.

Abstract: A paint spraying apparatus for coating an article with paint, enamel, lacquer or the like, includes a conveyor unit having an endless conveyor belt, trained over at least two drums, for transporting an article to be coated past a sprayer unit. Operatively connected to the conveyor unit is at least one cleaning unit for wiping a surface of the conveyor belt clean. The cleaning unit includes an endless wiping belt which extends obliquely relative to the conveyor belt and is so operated as to revolve at a higher speed than the conveyor belt when contacting the conveyor belt.

Abstract: A conveyor belt cleaner and tensioning arrangement for cleaning a conveyor belt including a conveyor belt cleaner and a tensioner. The conveyor belt cleaner includes one or more scraper blades mounted on a rotatable cross shaft. The tensioner includes a mounting member attached to the cross shaft for conjoint rotation therewith, a resilient linear biasing member attached to the mounting member, and a linear actuator attached to the biasing member. Operation of the actuator member stores a biasing force within the biasing member which in turn rotates the scraper blades into full-face engagement with the conveyor belt with a biasing force. As the scraper blades wear the biasing member continues to rotate the scraper blades into full-face engagement with the conveyor belt with a biasing force that changes in magnitude.

Abstract: A conveyor belt cleaner scraper blade for cleaning the surface of a conveyor belt and a method of manufacture of the scraper balde. The scraper blade includes a body having a base member adapted to be attached to a cross shaft of a conveyor belt cleaner and a scraping member which extends outwardly from the base member to a scraping tip. The scraper blade includes one or more electrical sensors that are embedded in an insert member. The insert member and the sensors are molded and embedded within the body of the scraper blade. Each of the sensors is adapted to provide an electrical output signal representing a physical condition of the scraper blade sensed by the sensor.

Abstract: A conveyor belt cleaner scraper blade for cleaning the surface of a conveyor belt. The scraper blade includes a base member adapted to be attached to a cross shaft of a conveyor belt cleaner and a wear section which extends outwardly from the base member to a scraping tip. The wear section includes a plurality of temperature sensors located along the length of the wear section, a plurality of wear sensors located along the length of the wear section, and one or more strain gage sensors located along the length of the wear section. Each of the sensors is in electrical communication with an electrical transmitter member that is adapted to provide an electrical output signal to a computer. The temperature sensors provide an indication of the temperature of the wear section at the location of each temperature sensor. The wear rate sensors provide an indication of the location of the scraping tip with respect to the base member as the wear section wears away and the tip moves closer to the base member.

Abstract: A conveyor belt scraping apparatus comprises a blade having a blade edge biased against a conveyor belt. The blade is supported at its base and has a blade body extending from the base to support the blade edge. The scraper blade body has a substantially rectangular recess in the base adapted for frictional mounting on a flange for engaging the surface of a conveyor belt for scraping material therefrom. A blade assembly of the present invention includes a mounting having a plurality of radial flanges and one or more scraper blades each having a blade body with an edge distal from its base and at least one substantially rectangular recess in the base frictionally mounted on at least one of the plurality of flanges, but not in mechanical locking engagement thereto.

Abstract: A scraper blade for a conveyor belt cleaner including a mounting base and a scraping tip. The scraping tip includes a bottom end attached to the mounting base, a corrugated front surface extending from the bottom end to a serrated first edge, and a corrugated rear surface extending from the bottom end to a serrated second edge. An end wall extends between the first edge and the second edge. The serrated first edge is adapted to be placed in scraping engagement with the belt of a conveyor to remove adherent material.

Abstract: Sprouting beans refining apparatus is provided wherein refuse matters of hulls, trashes, small roots, etc. are removed of sprouting beans efficiently. Sprouting beans raked up by raking-up conveyor 1 are caused to fall down on endless flat belt 6 which is supported by vibration frame 3 inclinedly upwardly toward moving direction. Sprouting beans on the endless flat belt are sent downwardly by vibration of the vibration frame 3 to fall down on lower endless flat belt 6. Refuse matters of roots, trashes, etc. contained in the sprouting beans attach to surface of the endless flat belt 6 and are transferred together with the endless flat belt 6 to be removed off by scraper 12. Refined sprouting beans are discharged from lower end of the endless flat belt 6 of lowermost stage.

Abstract: A guard adapted for enclosing an exposed return roller in a conveyor belt system. The guard attachment brackets are adapted to utilize the existing attachment point hardware of the exposed return roller to facilitate guard installation on an existing conveyor system. The attachment brackets provide adjustment of the guard relative the return roller. The guard permits visual inspection to detect accumulation of debris between the guard and return roller. The guard may also be adapted with wiper extensions for cleaning debris from the conveyor belt surface.

Abstract: A conveyor belt scraping apparatus comprises a blade having a blade edge biased against a conveyor belt. The blade is supported at its base and has a web extending from the base to support the blade edge. The web has at least one groove therein substantially parallel to the blade edge to define a tensioning region at the narrowed region of the web, whereby the blade may be biased and tensioned without need for external biasing and tensioning arrangements. Preferably, there are plural grooves in the web. Also preferably, the plural grooves are of different sizes so as to provide a progressive rate to the spring characteristic of the tensioning region of the web. In addition, a groove may have a cushioning material therein so as to provide cushioning of the blade.

Abstract: A stripper for lifting crop off flat rigid tines of a rotary conveyor is molded of ultra high molecular weight polyethylene. The stripper is oval-shaped in side view and is constructed of identical halves which each include a pair of spaced apart, parallel side walls that have marginal portions defined by rims which have a thickness greater than that of the side walls. An intermediate, concave wall extends between and is joined to the bases of the rims, which have a height measured from the respective base that is approximately twice the thickness of the associated side walls.

Abstract: The invention relates to a device for cleaning heavily soiled conveyor belts and is distinguished by a fluid-loaded transversely acting stripper (1) which is arranged transversely with respect to the movement of the conveyor belt, at the point of reversal of the belt or shortly below said point.

Abstract: A rolling floor for a truck or trailer box for hauling, then unloading objects. The rolling floor for a truck or trailer box includes a floor portion and a pair of wall portions upwardly extending from lateral sides of said floor portion. The floor portion has a plurality of rollers extending thereacross. An endless belt wraps around the floor portion and rests on the rollers of the floor portion. A drive mechanism drives the belt.

Abstract: An improved blade for a scraper assembly used with the head pulley of a conveyor system. The improved conveyor blade has a metal base adapted to telescopically engage a rectangular plate projecting radially from a support shaft mounted for rotation about a rotary axis parallel to the head pulley axis, the metal base having sheet-like outer walls disposed in spaced parallel relation from a receptacle for the elastomeric body of the blade. The blade has an under surface confronting the head pulley which projects past the plane of the innermost wall of the metallic base and terminates in a tip engaging the belt on the head pulley.

Abstract: The invention provides a torsion holder for a conveyor belt scraper which includes a first tubular member with formations which are engageable with fixed structure, a second member which is located at least partly inside the first member, torsion mechanism between the first and second members for resiliently restraining relative rotational movement of the second member inside the first member, a scraper blade carrier, and attachment mechanism engaged with the second member and the scraper blade carrier.

Abstract: A large round baler bale-forming belt drive roll has cylindrical sections at its opposite ends which extend through circular holes provided in the opposite side walls of the baling chamber. The cylindrical sections are smaller in diameter than the circular holes, thus leaving clearance gaps between the cylindrical sections and the boundaries of the holes. A pair of wipers, in the form of rod or wire stock, are welded at diametrical opposite locations on the cylindrical sections and are located in the adjacent clearance gap. The wipers are angled relative to the axis of rotation of the roll so that as the roll rotates the wipers sweep through the gaps and cause any crop material engaged there to be moved inwardly from the adjacent bale chamber side wall.

Abstract: A conveyor belt scraper which includes an elastomeric base member, a holder engaged with the base member and a wear resistant scraping insert engaged with the holder.

Abstract: A reversible belt scraper blade is supported on the support arms of a belt scraper by attachment fittings that permit the blade to be rotated, in place, while the weight of the blade is carried on the belt scraper arms.

Abstract: An apparatus is provided for preloading a scraper blade against a conveyor belt in a conveyor cleaning system. The apparatus includes a blade support adapted to mount a scraper blade for engagement with a conveyor belt, a torsion member including a first end segment spaced from a second end segment along an axis, and a stop engageable with the second end segment to maintain the torsion member in a preloaded condition with the second end segment rotated about the axis relative to the first end segment to generate a preload between a scraper blade mounted on the blade support and a conveyor belt. In one form, the first end segment has an essentially polygonal cross section engageable with the blade support to restrict rotation of the first end segment relative to the blade support.

Abstract: Disclosed herein is an invention having to do with a method and apparatus for supporting and tensioning cleaning blades that are in contact with a moving conveyor belt. The method and apparatus disclosed herein comprise locating an elongate support bar under the return side of a conveyor belt and positioning its length transverse to the direction of travel of the conveyor belt. The support bar has mounted spatially along its length several individual spring loaded piston-cylinder assemblies. Support plates are connected to the extensible end of each piston-cylinder assembly and cleaner blades are removably attached to the support plates. Each piston/cylinder assembly has an adjustable spring tensioning adjustment for the proper tensioning of each blade.

Abstract: A wiper blade for endless conveyor belts has three basic components or features which improves blade performance over the prior art. These components include:1. a multiradius side profile having a concavity defining the torsion resistance point,2. a thicker base section, and3. a high profile metal mounting insert.These three components act together to substantially reduce the bending moments associated with wiper blade operation and provide an improved structural profile with a high moment of inertia and shorter effective column length. These structural improvements allow the use of softer and more wear-resistant elastic polymers without the risk of blade buckling. The multiradius concave side profiles allow the use of a short thin blade tip profile which transitions to the thicker, ridged base profile. The bending moment generated by the operational forces is now resisted primarily at the transition point of the two profiles, e.g.

Abstract: A scraper constituting a blade which is yieldingly deformable in such a manner as to be curved from a linear state to an arch shape is held by a holding groove of a holder. The holding groove of the holder is formed by a substantially parallel rail like holding groove which is gradually apart from an axis extending to a transverse direction of the belt as the holding wall goes from both ends of the belt to a central portion thereof. The scraper comprises a leg portion inserted into the holding groove of the holder, an extended standing portion projecting from the holding groove so as to be in contact with the surface of the belt and a head portion formed by thickening a thickness of said extended standing portion more than a thickness of the leg portion toward a returning direction of the belt, in which a jaw portion projecting beyond a side surface of the leg portion is formed by a lower portion of said head portion.

Abstract: An arrangement to strip unwanted matter from belt bands in conveyor belt installations, comprises a systems support attached to a supporting structure for the belt band and stripping members each having a scraper blade spring-loaded in the ready-to-operate position against the belt band in a peeling fashion, and can, when the scraper blade encounters obstacles adhering to the belt band, pivot away and subsequently pivot back into the ready-to-operate positions. The blade support is supported by a pivot bearing having a limited pivot angle such that the scraper blade can adjust to changes in inclination of the belt band.

Abstract: The invention provides a cleaning method for removing dirt on an industrial belt and a cleaning belt used in the same. A cleaning belt having through-holes is provided onto an industrial belt. The cleaning belt comprises structural unit pieces in parallel to one another in a lengthwise direction. Each of the unit pieces is loosely interconnected and has a play such that the unit piece can move. The movement gives vibration onto the industrial belt when the cleaning belt is brought in contact with the surface of a running industrial belt. Then dirt on the industrial belt is removed through the through-holes.

Abstract: A composite scraper blade which is suitable for use with a primary belt scraper which includes a support formed from a first material and an abrasion resistant scraping element which is formed from a second material and which is engaged with the support.

Abstract: A conveyor belt cleaning device provides a belt scraper blade and a roller juxtaposed to the blade on its downstream side, relative to the direction of conveyor belt travel. Frictional contact between the moving conveyor belt and roller drives the roller. The scraper blade scrapes stringy materials from the belt and the roller pinches trailing stringy materials between the belt and the roller, pulling such materials from the blade.

Abstract: A plough scraper assembly for use with a conveyor belt which includes a plough scraper, first and second overhead supports which are spaced from each other in the direction of belt movement, first and second levers which are respectively pivotally attached at their upper ends to the first and second supports and, at their lower ends, to the plough scraper, the levers being inclined downwardly in the direction of belt movement, and a spring which biases the scraper towards the belt surface.

Abstract: A scraper blade is provided for cleaning debris from a moving conveyor belt. A base of the blade attaches to a holder and an integral blade portion provides a distal edge for scraping. A concave relief cavity having at least one axis of generation extending at an angle to the plane through the blade portion and the edge provides localized vortex action to spin the residual debris and block build-up. As a consequence, solid build-up between the entire blade face and the conveyor belt cannot occur and blade planing is prevented. In an alternative embodiment, multiple cavities are formed on the blade.

Abstract: A conveyor belt scraper which includes a bracket which is formed with two arms which extend in opposing directions, and two base pieces which are respectively engageable with the arms.

Abstract: A conveyor belt scraper blade arrangement adapted for use in cleaning the surface of a conveyor belt. The scraper blade includes a mounting base having a first mounting member and a second mounting member. A scraping member having a mounting member and a scraping edge is removably attached to the mounting base by a restraining arm member and a spaced apart support arm member. The support arm member includes a first end that is removably attached to the first mounting member of the mounting base and a second end that is removably attached to the mounting member of the scraping member. The restraining arm member includes a first end that is removably attached to the second mounting member of the mounting base and a second end that is attached to the scraping member. The support arm member is selectively removable and replaceable from the scraper blade.

Abstract: Conveyor cleaning assemblies are disclosed for cleaning endless conveyors such as for conveyor belts or chains. Each assembly includes a cleaning head which carries brushes for engaging one or more adjacent surfaces of the conveyor and a head support for holding the cleaning head in a fixed position adjacent a predetermined portion of the conveyor path. The cleaning head is engaged on the head support by sliding engagement movement in a direction generally parallel to the direction of movement of the conveyor that is contacted by the cleaning head, with the cleaning head and the head support having abutment stops to limit this engagement movement. Accordingly, the friction forces of the conveyor hold the cleaning head in position on the support without requiring any further attachment devices. In one embodiment, a cleaning head with brushes and a scraper is so mounted for cleaning a conveyor belt. In other embodiments cleaning heads with brushes are so mounted on opposites sides of large conveyor chains.

Abstract: A conveyor belt scraper in which a row of scraping blades 38 is held clamped between upper flanges 30,30' of a resilient buffer 28,28'. Lower flanges 32,32' of the buffer are secured to opposite sides of a flange 40 of a supporting beam 42. Bowed side walls 34,34' of the buffer, extending between the lower flanges and the upper flanges, form a hollow structure housing the beam 42. The hollow structure is oversize compared with the beam cross-section so as to leave clearance space 46 between upper surfaces of the beam and upper portions of the buffer. The buffer components are moulded of rubber and some movement of the resiliently-supported blades, in a direction toward and away from the conveyor belt, is permitted by compression of the hollow structure into the clearance space 46.

Abstract: A servicing arrangement is provided for a conveyor belt cleaner. The servicing arrangement includes an elongate mandrel member having a first end and second end. The second end of the mandrel member is adapted to be attached to a support such that the mandrel member is retained by the support in a cantilevered manner. A support member is adapted to be positioned over the mandrel member by sliding the support member over the first end of the mandrel member. The support member is selectively slidable along the mandrel member to selectively remove or selectively mount the support member on the mandrel member. The support member is adapted to receive and support a conveyor belt cleaner. An operator can easily remove the conveyor belt cleaner from the mandrel member for service or replacement of the conveyor belt cleaner from the outside of a conveyor housing during conveyor operation when a suitably designed tensioner with a release mechanism is used to protect the operator from cleaner blade pull through.

Abstract: A conveyor belt cleaner for cleaning one surface of a conveyor belt of length L and transverse width W includes a cleaner blade formed as an elongated strip of flexible elastomer, usually rubber or urethane. The blade, preferably of constant thickness, has a width much smaller than L and a length greater than W. The blade extends across the conveyor belt and has fasteners at its opposite ends. A tensioner, connected to one of the blade fasteners, applies a longitudinal tensioning force to the cleaner blade to maintain the cleaner blade in contact with the surface of the conveyor belt. In the preferred construction two tensioners are used, at opposite ends of the cleaner blade.

Abstract: A scraping apparatus 1 for use with a belt conveyor. The scraping apparatus 1 comprises a base portion 3 adapted for engagement with a holder 7 disposed to support the apparatus 1 adjacent a conveyor belt 2. A blade portion 10 is adapted to scrape the surface of the belt 2 and, thereby, remove residual material. An intermediate web portion 15 is resiliently deformable to permit a limited degree of relative displacement between the blade portion 10 and the base portion 3, to accommodate surface irregularities in the belt 2.

Abstract: A conveyor belt scraper blade adapted for use in cleaning the surface of a conveyor belt. The scraper blade includes a resilient arm member extending between a lower base portion and an upper end portion. The arm member is adapted to pivot about an axis extending through the base portion. A scraping block is attached to the upper end portion of the arm member. The scraping block includes a front surface and a rear surface. The front surface extends between an upper scraping edge adapted to contact the surface of the conveyor belt and a spaced apart lower edge. The front surface is adapted to form an obtuse scraping angle with the surface of the conveyor belt. A restraining member extends substantially from the scraping edge to the arm member. The restraining member substantially prevents movement of the scraping edge with respect to the front surface and controls the amplitude of vibration of the scraper blade during use.

Abstract: A reversible belt scraper is provided with opposite belt scraping surfaces and is adapted to be reversed by inverting. The belt scraper is formed with a pair of metal side frames, and a transversely elongated body is formed as a block of rubber defining the belt scraping surfaces on opposite sides. A pair of fiberboard backing plates are positioned to support the rubber block against forces tending to bend or deflect the rubber. The fiberboard backing plates wear at a rate faster than the wear rate of the rubber block and assure full contact between the belt and the rubber scraping body. In a further embodiment, ceramic bricks are embedded within the rubber block with wear surfaces at the rubber scraping surface. The rubber, brick and backing plates are formed in modular segments which are stacked end-to-end between the frames and retained by metal slugs which extend through the segments.

Abstract: A conveyor belt scraper strip includes a support strip formed of a hollow main section and a pocket section, which is arranged sidewise of the main section and has a plurality of insertion pockets for receiving footings of a plurality of approximately S-shaped wear strips, with the pockets having top openings for enabling insertion and withdrawal of the wear strips.

Abstract: Cleaning unit for a work transfer belt having a stationary top support frame to which a box-like lower main body is attached that contains belt cleaning devices. The top support frame provides an upper closure for the main body and cooperates therewith to form spaced entrance and exit openings isolating sections of the belt feeding through the unit. A manifold mounted in the main body directs washing fluid on the belt as it moves through the unit. The main body has a removable module supporting magnets for removing metallic particles and a squeegee unit for removing moisture and foreign matter from the belt. A squeegee mounting system keeps the squeegee blades in spring loaded contact with the belt. A wear indicator connected to the squeegee mounting system exhibits operational wear of the squeegee blades. The module with the squeegee and magnet aboard can be removed from the main body for refurbishment of module mounted components at a remote location.

Abstract: A conveyor belt scraper blade adapted for use in cleaning the surface of a conveyor belt. The scraper blade includes a resilient arm member extending between a lower base portion and an upper end portion. The arm member is adapted to pivot about an axis extending through the base portion. A scraping block is attached to the upper end portion of the arm member. The scraping block includes a front surface and a rear surface. The front surface extends between an upper scraping edge adapted to contact the surface of the conveyor belt and a spaced apart lower edge. The front surface is adapted to form an obtuse scraping angle with the surface of the conveyor belt. A restraining member extends substantially from the scraping edge to the arm member. The restraining member substantially prevents movement of the scraping edge with respect to the front surface and controls the amplitude of vibration of the scraper blade during use.

Abstract: An apparatus in which a photoreceptor cleaning blade is mounted to an extension of the coupler link of a four bar linkage. A torsion spring is positioned at the pivot of the crank link to create the torque on the crank link. A weight or solenoid can also be used to create the torque on the crank link. This torque supplies the force to the mounted cleaning blade. The instantaneous center of rotation is a virtual pivot point which is located on the photoreceptor tangent plane. The linkage reaction forces and the blade friction load all pass through the virtual pivot point leaving the blade load a function of the torque on the crank link.

Abstract: An agricultural implement especially designed to distribute liquid, semi-liquid and solid forms of manure to a field. The manure spreader includes a V-shaped tank and two troughs below the tank. Each trough has an auger disposed in it. Wiper bars are provided to prevent build up of manure on the auger blades. An internal beater breaks up any manure that has bridged over the augers. An external beater, spaced apart from the rear of the tank is adapted to distribute the various forms of manure. A receiver conveys the manure from the troughs to the external beater.

Abstract: Apparatus for cleaning particulate material including coal particles and dust from a flexible belt of the type which is adapted to transport material such as coal on its material-supporting surface and which is of a composition which has and is subject to the development of surface cracks. The belt is advanced lengthwise along a predetermined path on its return run with the material-supporting surface on the underside. A scraper blade is supported crosswise of the belt in scraping contact with the material-supporting surface of the belt as the belt is advanced. Liquid is sprayed against the material-supporting surface of the belt and into the surface cracks adjacent to the point of contact of the scraping edge. The liquid is sprayed against a surface of the blade to be deflected into the cracks and also to maintain the blade in a clean condition. A backing member holds the belt down in contact with the scraper blade.

Abstract: A scraper for cleaning conveyor belts and the like includes an elongate blade holder with at least two support pins therein, and an elongate blade slidably received in a slot in the holder. The blade has an outer edge shaped for scraping a belt, and an inner edge abuttingly supported on the support pins at locations spaced a predetermined distance inwardly from the opposite ends of the blade. The blade is resiliently flexible along its length, such that as contact between the outer edge of the blade and the belt wears away the center portion of the blade, the end portions of the blade are flexed back about the support pins in the direction away from the belt, thereby bowing the center portion of the blade inwardly toward the belt for improved conformance and cleaning performance.

Abstract: The apparatus comprises a horizontal conveyor (2), which comprises an endless conveying element (5) having supporting surfaces (11, 12 ), on which the insulating glass panes (20) stand. Backing means (16) for the insulating glass panes (20) extend above the horizontal conveyor and define a plane of travel (34) for the panes. The horizontal conveyor (8) is displaceable in a direction which is at right angles to the direction of conveyance and parallel to that one supporting surface (11), which is adjacent to the plane of travel for the panes.

Abstract: A conveyor belt cleaning assembly includes an array of stripper blocks which are coupled to a rigid crossbar by resilient connecting arms. The resilient connecting arms are characterized by high compressive strength, but exhibit a structural collapsing response to off center deflection forces which exceed a predetermined load level. The collapsed connecting arms thus provide a reduction in length of the stripper assembly in response to a belt reversing condition. One side of each connecting arm has the ability to collapse in response to a relatively low deflection force and the other side has the ability to deflect and withstand substantial compression loading without collapse. In the preferred embodiment, the connecting arms are constructed of a resilient material, such as polyurethane, with the body of each connecting arm being intersected by a large aperture, thereby defining a forward collapsible wall and a load bearing rear wall.