Abstract: The snow rake for removing snow from a roof is disclosed. The snow rake includes an elongated extension pole comprising a plurality of pole sections which may be connected together in an end-to-end manner. First and second rake members are pivotally connected together by a base plate so as to be able to be positioned in a straight position or a V-shaped position. The first and second rake members are also movable to a third position wherein the first and second rake members are positioned so that the inner sides of the rake members face one another. The inner side of the base plate also has extension pole section receptacles formed therein which enable the ends of the pole sections to be positioned therein for shipment or storage purposes.

Abstract: A snow rake for moving snow from a roof is disclosed. The snow rake includes an elongated extension pole comprising a plurality of pole sections which may be connected together in an end-to-end manner. First and second rake members are secured to the upper end of the extension pole. The first and second rake members are hingedly connected together so as to be able to be positioned in a straight position or a V-shaped position. Pivot support arms extend from the rake members to a clamp which is longitudinally adjustably secured to the extension pole. The clamp may be adjustably moved on the extension pole to change the positions of the rake members. The components of the snow rake may be placed in a box for display, shipment or storage.

Abstract: A Variable Geometry Bucket for material handling, such as plowing snow. The Variable Geometry Bucket generally includes four bucket members pivotally attached to each other. A pair of double-acting hydraulic cylinders can cause the outer bucket members to rotate on a frame, which in turn moves the inner bucket members. Due to the location of the pivotal connections, the bucket members can be moved into different positions, resulting in a single attachment that can be used as a V-blade, a box plow, and a bucket.

Abstract: A wing plow post and method of manufacturing the post is disclosed. The post is intended for attaching a wing plow to vehicle for moving material, such as snow. The links of the post are parallel to the angle of the wing plow when the plow is in the plowing position to minimize stress on the post and frame of the vehicle. The post includes a float collar on the hydraulic lift cylinder to provide free floating of the toe end of the wing plow. It allows a wing plow to move over road surfaces and limit the stress on both the post itself and the frame of the vehicle to which the post is attached. Further, the plow also allows power to be provided by a hydraulic cylinder in the downward direction to the toe end of the wing plow.

Abstract: A semi-continuous duty, Green Technology 14, robotic vehicle providing protection and security from underground mines. A deflector blade 11 follows natural existing contours to maintain straight line paths, while simultaneously carrying a mine detector 10, a vertical reciprocating ram set 30, 32 and 33 that preloads soil while also creating forward motion, followed by an energy dissipation, reaction system and containment canopy system 22, 24, 26 & 29.

Abstract: A snow plow assembly comprising a main plow body, at least one butterfly gate, at least one blocker and a diverter. The at least one butterfly gate and the at least one blocker are jointly connected to the main plow body and are controlled by actuators to be opened and closed. The actuators allow the users to control when to release or hold snow collected into the main plow body. This feature is used to prevent the buildup of high snow ridges in front of small pathways such as driveways.

Abstract: A plow assembly for attachment to a vehicle, the vehicle having a longitudinal axis, comprises a plow blade having first and second ends, a first plow wing pivotally mounted to the first end of the plow blade, a plow support adapted to be mounted to the vehicle, the plow blade being pivotally mounted to the plow support to permit the plow blade to pivot relative to the vehicle between a center position, where the plow blade is positioned generally perpendicular to the longitudinal axis of the vehicle, and a first position, where the first end of the plow blade is pivoted toward the vehicle, and between the center position and a second position, where the second end of the plow blade is pivoted toward the vehicle, and either a single link rod, a resilient connecting member, or a cam and follower mechanism connected to the first plow wing and to the plow support and configured to pivot the first plow wing relative to the plow blade during pivoting of the plow blade relative to the vehicle such that when the plo

Abstract: A V-blade snowplow having both full moldboard trip and trip edge capabilities. The V-blade has first and second moldboards that not only can pivot against a restoring force of one or more trip springs extending intermediate a pivot frame and a push frame of the snowplow, but the moldboard of each wing of the V-plow has associated therewith a respective cutting edge hingedly secured along a base thereof, the cutting edge biased toward an untripped position in substantial alignment with the base of the moldboard by one or more trip edge springs. The maximum angle of deflection of the cutting edges is preferably about 40°, which is lower than the maximum angle of deflection of cutting edges of V-plows only exhibiting trip edge capability.

Abstract: A plow, including a center blade and a wing blade coupled to each end of the center blade. Each wing blade is pivotally connected to the center blade about an axis. The plow includes a first pair of wear strips, with one wear strip coupled to the first end of the center blade and the other wear strip coupled to one wing blade. A second pair of wear strips is included, with one wear strip coupled to the second end of the center blade and the other wear strip coupled to the other wing blade. A wing pivot tube is coupled to the wing blades and center blade at each end of the center blade. The wing blade, wear strips, and wing pivot tube at each end of the center blade minimize a gap between the blades throughout the range of movement of each wing blade.

Abstract: A snow plow is provided with an articulated wing blade. The snow plow includes a hitch frame nose assembly configured to couple to a vehicle by securing each of a chassis coupler to the vehicle chassis. A plow frame having a front portion and a rear portion is configured to coupled to a central plow blade and a lift bar assembly. The central plow blade includes a wing blade pivotally attached at each end of the central plow blade. Each wing blade is configured to selectively move independently of the central plow blade from a first position to a second position about a vertical axis parallel with each of the first and second ends of the central plow blade. The lift bar assembly is coupled to the rear portion of the plow frame and couples to the hitch frame nose assembly wherein the snow plow is pivotally coupled to the vehicle.

Abstract: An extensible snowplough blade comprises a fixed blade body (10), having a substantially linear conformation in a longitudinal direction and is provided, at a posterior surface (11) thereof, with means for support (12). It further comprises a raising structure (20) for defining a hinged connection between the blade body (10) and a vehicle (150). The raising structure (20) in turn comprises a frame (21) for fixing thereof to the vehicle (150) and coupling means (25) of the fixed frame (21) to the means for support (12). The extensible snowplough blade (100) further comprises a first extension (30), slidably mounted on the means for support (12) in a parallel position to the blade body (10) and destined to extend longitudinally with respect to the blade body (10) in a left-wards direction, and a second extension (40), slidably mounted on the means for support (12) in a parallel position to the blade body (10) and destined to extend longitudinally, with respect to the blade body (10), in a right-wards direction.

Abstract: A plow, including a center blade and a wing blade coupled to each end of the center blade. Each wing blade is pivotally connected to the center blade about an axis. The plow includes a first pair of wear strips, with one wear strip coupled to the first end of the center blade and the other wear strip coupled to one wing blade. A second pair of wear strips is included, with one wear strip coupled to the second end of the center blade and the other wear strip coupled to the other wing blade. A wing pivot tube is coupled to the wing blades and center blade at each end of the center blade. The wing blade, wear strips, and wing pivot tube at each end of the center blade minimize a gap between the blades throughout the range of movement of each wing blade.

Abstract: A snow deflector apparatus that easily attaches to a snowplow, a kit that includes two snow deflector apparatus and a control system, and to a snowplow system that includes two snow deflector apparatus and a control system. The snow deflector apparatus includes a deflector plate, a deflector plate rotator mechanism and at least one spring. The deflector plate is dimensioned to obstruct at least a substantial portion of the end of the blade of the snowplow such that an amount of snow that is sloughed off of the blade is minimized when the deflector plate is in a deployed position.

Abstract: A snow plow is provided with an articulated wing blade. The snow plow includes a hitch frame nose assembly configured to couple to a vehicle by securing each of a chassis coupler to the vehicle chassis. A plow frame having a front portion and a rear portion is configured to coupled to a central plow blade and a lift bar assembly. The central plow blade includes a wing blade pivotally attached at each end of the central plow blade. Each wing blade is configured to selectively move independently of the central plow blade from a first position to a second position about a vertical axis parallel with each of the first and second ends of the central plow blade. The lift bar assembly is coupled to the rear portion of the plow frame and couples to the hitch frame nose assembly wherein the snow plow is pivotally coupled to the vehicle.

Abstract: A snow deflector apparatus that easily attaches to a snowplow, a kit that includes two snow deflector apparatus and a control system, and to a snowplow system that includes two snow deflector apparatus and a control system. The snow deflector apparatus includes a deflector plate, a deflector plate rotator mechanism and at least one spring. The deflector plate is dimensioned to obstruct at least a substantial portion of the end of the blade of the snowplow such that an amount of snow that is sloughed off of the blade is minimized when the deflector plate is in a deployed position.

Abstract: A materials moving blade (1) comprising a main blade (3) having a materials engaging surface extending bounded by a first end, a second end, a top edge (37) and a lower edge (39) defining a hinge axis, a plurality of trip blades (9) supported at the lower edge (39) of the main blade (3) and a universal mounting panel having a plurality of holes in the mounting panel for accommodating different mounting system geometries.

Abstract: The left and right sideblades are hinged to the mainblade about vertical axes, and can pivot each through 180°. The sideblades are rotated by means of left and right hydraulic rotary actuators. The actuator includes a piston formed with helical splines, which drive a rotor sleeve of the actuator to rotate in a single-plane-circle when the piston is driven axially. The journal bearings in the rotary actuator are supplemented by bearings provided in a coaxial lower hinge, which are of much greater journal capacity than the bearings in the rotary actuators. The lower hinge protects the hydraulic rotary actuator from shocks due to the sideblade impacting against a kerb. A wheel-protection link blocks the sideblade from contacting the wheel of the vehicle.

Abstract: A plow assembly comprises a blade, structure attached to the blade and adapted to be attached to a vehicle for mounting the blade to and supporting the blade from the vehicle, and a wing attached to an end of the blade. The wing has a first portion mounted to the blade for translational movement relative thereto, and a second portion mounted to the first portion for rotational movement relative thereto. An actuator has a cylinder and first and second oppositely movable piston rods. The first piston rod and the cylinder operable to move the first portion of the wing relative to the blade, and the second piston rod and the cylinder are operable to move the second portion of the wing relative to the fist portion of the wing.

Abstract: A snow pusher attachment for use in conjunction with a straight blade angle-type snow plow mounted to a work vehicle. This pusher allows a work vehicle to capture, contain, and relocate large amounts of snow very quickly and efficiently. The attachment consists of side panels, connected by horizontal members between. This pusher attachment is secured to the snow plow by bracket assemblies, attached to the upper edge of the snow plow that engage hooks on the upper, rear portion of the pusher attachment. The attachment does not require the operator to exit the work vehicle to secure or release it from the snowplow. Accordingly, the attachment allows the quick and repeated conversion of a snow plow into a snow pusher box and visa versa.

Abstract: A slip hitch connection to a drive vehicle for a snow plow comprises an elongated flat planar member that can be hooked on to a connecting lug of the drive vehicle, the flat planar member being mounted on the snow plow frame for reciprocal movement in each of a pair of spaced apart coupling assemblies secured to the snow plow frame for connecting the snow plow to the drive vehicle. Each of the elongated flat planar members have an upper and lower elongated guide slot in which guide bolts that move up and down as the snow plow itself is moved up and down are received to enable the guide bolts and snow plow to which they are connected make limited reciprocal movement up and down while hooked up to the drive vehicle and being pushed forward during a snow plowing operation.

Abstract: A detachable snow plow blade is driven by a skid-steer or other suitable vehicle. The detachable plow blade has hydraulically adjustable wing blades that each pivot under separate control about a main blade. Pins that support power cylinders between braces are arranged to enable each wing to extend through a range of motion from essentially perpendicular to and ahead of the main blade to essentially perpendicular to and behind the main blade. In a further alternative embodiment, the entire blade, including wing blades, may additionally be pivoted with respect to the vehicle, resulting in a very adjustable blade which is well adapted to emulate prior art box plow/pushers, conventional plows, pull back/drag plows, V-plows and fold-out plows.

Abstract: A working machine having a blade is disclosed, the blade comprising a body blade and an extension blade, the body blade having a body-side mounting portion having a body-side mounting hole and the extension blade having an extension-side mounting portion having an extension-side mounting hole, the body-side mounting hole and the extension-side mounting hole being formed vertically through the body-side mounting portion and the extension-side mounting portion, respectively. Further provided are mounting members adapted to be inserted into the mounting holes to connect the body blade and the extension blade with each other, and positioning members and a cutout portion for aligning the positions of the body-side mounting hole and the extension-side mounting hole vertically with each other and inhibiting the body-side mounting portion and the extension-side mounting portion from pivoting around the mounting members.

Abstract: The left and right sideblades are hinged to the mainblade about vertical axes, and can pivot each through 180°. The sideblades are rotated by means of left and right hydraulic rotary actuators. The actuator includes a piston formed with helical splines, which drive a rotor sleeve of the actuator to rotate in a single-plane-circle when the piston is driven axially. The journal bearings in the rotary actuator are supplemented by bearings provided in a coaxial lower hinge, which are of much greater journal capacity than the bearings in the rotary actuators. The lower hinge protects the hydraulic rotary actuator from shocks due to the sideblade impacting against a kerb.

Abstract: A blade assembly includes a main body vertical blade portion and a pair of wings pivotally mounted at the ends of the main body. A hydraulic cylinder attached to each wing pivotally moves each wing relative to the main body, the cylinders being operatively connected in series. Each wing is configured to rotate through a range of rotation substantially equal that of the other wing but includes a different radius of rotation than the other wing.

Abstract: An expandable implement attachment selectively connectable to a vehicle and having a frame assembly, a first bucket member laterally fixed to the frame assembly and a second bucket member laterally moveable relative to the frame assembly to provide a bucket with an adjustable width.

Abstract: A pusher/bucket has back plate with wings pivotably mounted at either end, and a drop blade pivotably mounted thereto. The drop blade can be secured in a raised position where it is superimposed over the back plate; when in the raised position, the wings can be positioned relative to the back plate to provide a wing plow. The wings can be folded parallel to the back plate, with the raised drop blade residing therebetween. When the wings are normal to the back plate, the drop blade can be secured in a lowered, horizontal position; in this position, the drop blade acts as the bottom of a loading bucket, the sides being formed by the wings and the back plate. A float mechanism allows the pusher/bucket to push material across uneven terrain, and is preferably disabled when the pusher/bucket is configured as a bucket for loading and dumping material.

Abstract: A snowplow assembly may include a snowplow mechanism having a frame and a pair of wings that are adapted to move independently. The snowplow assembly may also include a hydraulic system that has a first cylinder for use in moving the first wing, a second cylinder for use in moving the second wing, a pump system for use in providing hydraulic fluid to the first and second cylinders, and a flow divider that causes the first wing and the second wing to move at substantially the same time and substantially the same speed regardless of the disparity of loads on the first and second wings.

Abstract: A plow assembly includes a pair of plow wings which are pivotally mounted at opposite ends of a center plow. Each of the plow wings may pivot between a forwardly angled position and an aligned position. The plow assembly may pivot a trailing plow wing in response to the center plow being urged or angled toward that side of the vehicle. The plow wings may be oriented in their forwardly angled position until the center plow is at least substantially urged or pivoted toward its angled position or toward a position between the center position and the angled position. The trailing plow wing may be pivoted or urged to its aligned position in response to the center plow being substantially urged or pivoted toward its angled position or toward a position between its center position and its angled position.

Abstract: A frontward blade mounting bracket, for connecting the front end of a side blade to a vehicle side adjacent a road surface, includes a spacer and an elongate guide member. The spacer has opposed first and second spacer ends. The first spacer end is pivotally connected to the vehicle side about a substantially vertical pivot axis, and the second spacer end is spaced apart from the first spacer end in a direction leading outwardly away from the vehicle side. The guide member has first and second guide parts connected to the second spacer end and the second guide part respectively. The first and second guide parts longitudinally move relative to one another about a substantially vertical guide axis.

Abstract: A device for selectively positioning a side wing relative to the side of a motor vehicle it is mounted on and to the adjacent road surface is disclosed. The device includes first and second longitudinal end members pivotally connected to the vehicle side and to a rearward end of the side wing about vertical axes; the front end of the wing is usually connected adjacent the front end of the vehicle. First and second elongate rams that are angularly positioned relative to one another are connected to the first and second end members. The first and second rams operate in parallel relative to each other for selective operation of the side wing from a position adjacent the vehicle side and away from the ground surface to a position in operative engagement with the road surface at an adjustable angle relative to the vehicle side.

Abstract: The plow includes a vehicle mount for mounting the plow to a host vehicle, and a main blade mounted to the vehicle mount The plow further includes a pair of wing blades pivotally mounted to the main blade for travel in an arcuate path relative to the main blade, and four bar parallel arm linkages and actuators connected between opposing ends of the main blade and each of the wing blades for supporting and swinging the at least one wing blade in said arcuate travel path throughout the full distance between a retracted position in front of the main blade such that at least a substantial portion of the at least one wing blade is disposed in overlapping relation with the main blade, and an extended position in substantial longitudinal alignment with the main blade whereby a plurality of plowing widths is provided. It should be noted that the blade is advantageously used for the plowing of snow, however the plowing of other materials is envisioned such as sand or gravel.

Abstract: A snow plow blade includes a selectively extendable barrier attachment. The barrier attachment includes a base pivotally secured to the plow blade and secured to one end of each of a number of flexible members that are also engaged by a retraction mechanism for the barrier attachment that is disposed on the blade. The retraction mechanism is used to automatically retract and extend the flexible members as the base is pivoted between a retracted position and a deployed position on the blade. In the deployed position, the flexible members form a wall that prevents snow collected or diverted by the plow blade from passing through the barrier attachment. The barrier attachment may also include a separate deployment mechanism that operates to move the base between the retracted and deployed positions, and a brace used to hold the barrier attachment in position when in the deployed position.

Abstract: A wing plow assembly includes a base member for mounting to a plowing vehicle (or to structures connected to a plowing vehicle, such as on a plow frame for a front moldboard). Upper and lower height adjustment arms each have a base end pivotally anchored to the base member, and an opposing plow end pivotally linked to a plow positioning leg. The base member, height adjustment arms, and plow positioning leg form a parallelogram linkage wherein the plow positioning leg may vertically swing on the height adjustment arms about the base member. A wing plow having a length extending between a inner end and a outer end has its inner end affixed to the plow positioning leg so that the wing plow may also vertically swing about the base member, thereby allowing the wing plow to be raised and lowered with respect to the base member (and thus with respect to the plowing vehicle).

Abstract: A snowplow attachment for mounting to the front end of a vehicle that includes both a push blade operable during forward movement of vehicle and a pull blade operable during reverse movement of the vehicle. The pull blade drops down in front of the push blade such that pushed snow can then be pulled back. The snowplow can get up close to permanent structures such as buildings and remove snow therefrom. During the push mode, the pull blade is raised to avoid interference with pushed snow. The snowplow can include side plates located on the ends of the blades for containing the snow and prevent snow from escaping out the sides, thereby increasing the volume of snow moved by the plow during one sweep. According to one embodiment, the snowplow includes a push blade assembly that is adapted to mount directly on the vehicle and a movable pull blade carried by the push blade assembly.

Abstract: An end gate for a grader blade includes a first body attachable to a grader blade. A second body is provided which supports a barrier member. The second body is pivotally secured to the first body for movement between a lowered operative position and a raised transport position. Upon the barrier member sustaining an impact when in the lowered operative position, the second body pivots to the raised transport position thereby reducing damage to the barrier member resulting from the impact.

Abstract: A retractable side wing assembly, adapted to be mounted on a side of a road vehicle for clearing snow off the same, includes a scraper having a frontward end pivotally secured to the side of the vehicle and a rearwardly and outwardly extending free end, a retracting member having a first end rotatably secured to a carriage of a shock absorbing device and a second end rotatably secured to the side of the vehicle rearwardly of the scraper, and a fixed part of the shock absorbing device rigidly secured to the scraper in proximity of the frontward end. The shock absorbing device that could also be retrofitted as a kit on an existing side wing assembly includes an absorber member rigidly secured to both the fixed part and the carriage sliding therealong, and allowing for automatic rearward deflection of the scraper pivoting around the frontward end from its standard position to a deflected position when hitting an obstacle.

Abstract: A snow plow includes a central blade and left and right end blades pivotally connected to the ends of the central blade for movement between open positions in line with the central blade, and folded positions forward of the central blade. The rear of the central blade includes a horizontal slot for removable insertion of a loader bucket to lift and drive the plow. Side walls extend forward from the outer end of each end blade, each side wall including a removable wear shoe for sliding contact on a ground surface. The end blades are lockable in both their open and folded positions.

Abstract: A laterally articulable blade for a bulldozing device. A main blade portion and an articulable blade portion extend along the same elongate axis so that the blade portions are co-linear when the blade is in a "straight" configuration. A hinge is pivotally connected to both blade portions and extensible means are provided to displace and pivot the articulable blade portion with respect to the main blade portion providing for two motions. The articulable blade portion may be displaced forwardly of the main blade portion, and the rotated inwardly.

Abstract: A wing plow yoke which may be manually actuated to laterally move outwardly from the front side of a plowing vehicle to allow access to the vehicle's hood, and thus to its engine. Mounting brackets attached to opposite sides of the front of the vehicle are provided with bracket apertures wherein a yoke bar is fit so that the yoke bar can move within the bracket apertures. A gear wheel or a fulcrum-and-lever arrangement is provided which engages a series of spaced depressions situated along the length of the yoke bar. By turning the gear wheel, or by selectively engaging depressions in the yoke bar with the lever, the yoke bar (and thus the wing plow) is moved laterally outwardly from the side of the vehicle. This arrangement avoids the need for any power transmission from the engine in order to move the yoke bar, and thus the yoke bar (and wing plow) may be moved outwardly from the side of the vehicle even in the event of engine failure.

Abstract: An asphalt spreader for spreading asphalt into ruts in a roadway. The spreader includes a main blade that has wings on either end to keep asphalt before the blade. The blade also has a wedge-shaped center portion which diverts asphalt toward either side of the blade to direct more asphalt into the ruts. The vertical clearance of the wedge-shaped center portion can be separately adjusted so as to control the amount of asphalt that is laid down in the center portion between the ruts. In addition, the bottom surface of the blade is inclined rearwardly with respect to the blade to form an acute angle with the groundplane.

Abstract: The invention is a trailer-type snowplow assembly. The assembly includes one pivot mechanism that allows the plow blade to be raised or lowered. The assembly further includes a free pivot assembly that allows the blade to freely pivot in a transverse direction in response to directional changes of the tow vehicle or uneven snow impact along its length. Also disclosed is a multi-piece plow blade that has removable end portions that allow a user to elongate or shorten the effective length of the plow blade.

Abstract: An implement for preparing a field includes a ground engaging device that allows the implement to be pushed or pulled on the field. The ground engaging device includes a reversible roller with projections joined to an outer surface thereof to engage the ground. The projections do not extend along the complete length of the roller but rather a portion thereof thereby reducing the power necessary to rotate the roller. The implement includes reversible guards for keeping the disturbed ground in front of the roller.

Abstract: A plow blade assembly including a moldboard, displaceable trip cutting edge connected to the moldboard, a moldboard receiving surface attached to the backside of the moldboard, a trip cutting edge contact surface attached to the backside of the trip blade, and a spring for urging the trip blade into a forward position. The trip cutting edge mechanism, located at the bottom edge of the moldboard, holds the trip cutting edge rigid for plowing but will allow it to give way upon contact with any solid object. The braking mechanism provides a large surface area which protects the trip blade mechanism from damage when the trip blade "bottoms out.

Abstract: A winged plow for moving snow or other materials with a vehicle has a support frame pivotally connected with one end of a plow vehicle. An elongated plow blade having two opposing ends is pivotally connected with the terminal end of the support frame for generally horizontal rotation between a centered position with the plow blade oriented generally perpendicular to the support frame and an angled position with the plow blade rotated substantially away from the centered position. One of a pair of plow blade wings is pivotally connected at each of the opposing ends of the plow blade for rotation between a closed position in which the wings project generally forward, the wings and plow blade defining a generally U-shaped assembly, and an open position in which the wings project in generally opposite directions, away from each other, effectively extending the length of the plow blade.

Abstract: The support framework for supported mounting of a mounting arm of a wing plow blade includes two mirror image sections, one mounted on each side wall of a forward plow frame. Each section includes a substantially squared peripheral lip within which a first and second plate are contiguously seated in side by side manner, each securing the position of the other within the lip. The first plate is rotatable about a hinge to a position outside the lip, allowing the second plate, which is attached to the side wall of the forward plow frame by a pivot, to pivot forwardly and rearwardly within the confines of the lip, allowing for tiltability of a vertical mounting post of the wing plow which is engaged to the second plate by means of the wing plow mounting are extending therethrough.

Abstract: A wing assembly is mountable to a plow blade driven in a direction of travel by a vehicle, and preferably left and right wing assemblies are respectively mounted on the left and right side edges of the plow blade. A representative wing assembly provides an auxillary plowing surface and has an inboard edge that is proximate the plow blade when the wing plate is mounted thereon. The wing plate is pivotally mounted on a vertical pivot axis so that it may pivot into an attack position at an obtuse angle .theta. to the plow blade with the inboard wing edge proximate the plow blade and an outboard portion projecting forwardly and outwardly from the front plowing surface of the plow blade. A latching structure retains the wing plate in the attack position. The pivotal mounts may be vertically aligned trunnion pins on the plow blade and matable opening on brackets defined by rear horizontal support and mounting webs on the wing plate. Where the plow blade can be canted at an obtuse angle .phi.

Abstract: An earth-moving attachment for use with a vehicle includes a pair of earth-moving blade assemblies mounted on a main beam. The earth-moving blade assemblies are adapted to be independently movable in several planes with respect to each other and with respect to the main beam so that a plurality of earth-working operations can be performed, and the attachment is amenable for use in conjunction with a wide variety of terrains. The blade assemblies are mounted and designed to efficiently transfer forces with the main beam.

Abstract: A device for back scraping snow, earth, or other like substances which generally includes a truck having a concave snowplow blade mounted on its front. The blade has shoes provided on its backside, wedge shaped hinged connections mounted on the shoes, and a flat blade mounted pivotably on said wedge brackets. When the flat blade is brought in contact with snow to be scraped and the snowplow blade is moved in a backwardly direction, the snow to be scraped is moved by the flat blade.