Abstract: The use of a pivotal coupling on a cart of the wheelbarrow type allows for a downwardly applied pressure to the user ends of the handles to tip the bucket to at least begin the dumping action of the cart. Following the initial downward pressure with the handles still elevationally displaced downward an upward lift applied to the user ends of the handles completes the dumping action of the cart. Use of multiple pivotal axises on the cart provide for an extremely efficient operation. Various enhancements are explained including locking of the orientation of the cart following the initial dump, wheel blocking to prevent rotation of the ground support wheel relative to the bucket during at least a portion of the final dumping action and stabilization enhancement to prevent lateral tipping of the cart during the final dumping action.

Abstract: A folding wheelbarrow includes opposed tubular perimeter frame sections each connected to a support wheel and joined to each other at a point along rearward edges thereof by a hinge pin. Integral handlebar sections extend rearwardly from the frame sections and are connected to handgrips which may be selectively positioned for comfort and use by a human operator. A flexible load carrying container is secured to the frame sections. A single wheel embodiment includes perimeter frame members which may be joined by pivot pins supported on a fork structure or by a hinge connection at a single hinge pin also connected to a wheel fork structure.

Abstract: The present invention provides a manually powered drive assembly for a vehicle. A foot crank winds a helical torsion spring through a system of shafts and sprockets in a first direction. By releasing a brake applied to a wheel, or wheels, of the vehicle, the wound spring transfers a rotational movement from a spring shaft to a freewheel sprocket coaxially aligned with the axle supporting a wheel, so that the rotational movement upon the wheel assists a user in manually moving the vehicle. The drive assembly may be advantageously used with a wheelbarrow to assist in building up momentum for moving heavy loads.

Abstract: A wheelbarrow has a main frame defining two laterally spaced-apart longitudinal portions, to which an axle is mounted with a wheel rotatably mounted thereto, and to which a body, such as a tub or flat bed, is mounted for carrying a load. Attached to the main frame are leg structures, each of which includes a straight base portion configured for aligning with and engaging the ground. Forward cross-braces are connected from a forward end of each base portion to a first point on the main frame, and rearward cross-braces are connected from a rearward end of each base portion to a second point on the main frame proximately adjacent to the first point. A lateral member extends from one longitudinal portion of the main frame to the other longitudinal portion, and a lateral cross brace extends from each leg structure to the lateral member.

Abstract: An wheelbarrow attachment for a typical wheelbarrow, the attachment removably fitting over the lip and bucket of the back of the wheelbarrow and therefrom extending upward and backward from the rear of the bucket. The u-channels fitting the bucket are connectively braced. Inner uprights attach to the u-channels and are adjustably fitted for height, and fore and aft adjustment of a padded cross plate connecting the inner uprights. A user braces and pushes with his/her body, offering greater force for propelling the wheelbarrow and greater stability in handling a loaded wheelbarrow.

Abstract: This invention relates to a mobile measurement system of photoenvironment comprises a measuring equipment 5 to measure photoenvironment and a barrow 4 for moving measurement which the equipment 5 is mounted. The measuring equipment 5 has one or more photosensor 5a–5c and a photodata recording device 7 that records photodata that is detected and output by the photosensors with the position and the direction of the detect of these sensors, the barrow 4 has a measurement position and direction calculating device 7 that calculates the position and the direction of detection of the photosensors 5a14 5c at the measurement in accordance with an information of self-contained navigation from an acceleration sensor 9 and a rotation angle sensor 10 that detects the acceleration and the rotation angle of the barrow respectively, and an information of moving distance from the wheel revolution sensor 8 and transmit the result of the calculation to the photodata recording device 7.

Abstract: An improved leg means providing leveling support for a wheelbarrow resting on un-level ground. As wheelbarrow is lowered to resting position, a center pivoting cradle leg member having left and right leg-feet portions depending downward and laterally outward from under each side of wheelbarrow undercarriage touchable to ground. The cradle leg member is supported by an axle passing through a vertical elongated slot in a yoke member than passing through the cradle leg member center between left and right feet portions. The slotted yoke member is affixed onto wheelbarrow undercarriage. The axle support provides for up and down and seesaw action of cradle leg member. Further lowering of the wheelbarrow will settle it down against the cradle legs which are now graduated to slope of ground. A fixed locking pin member at center of undercarriage supporting will mesh with a toothed locking gear portion of the cradle leg support.

Abstract: A trailer adapter hitch suitable for converting a manually operated two wheeled barrow to a two wheeled trailer for use with a motorized vehicle is the subject of the present invention. The trailer adapter hitch is generally linear in shape and is light weight, having a trailer hitch at one end for attaching to the pulling hitch of a motorized vehicle and means for attaching securely at two points on the frame of a two wheeled barrow.

Abstract: The inventive wheelbarrow provides novel features that allow the wheelbarrow to remain level on uneven or sloping terrain when parked, thereby providing more stability.

Abstract: A wheelbarrow comprises a wheeled body in the shape of a sloping shovel having two opposite side walls, a front loading end and a rear receptacle end; a pair of laterally spaced and readwardly extending handles; and a fulcrum mechanism pivotably connected to the wheelbarrow and moveable from a retracted position where the fulcrum mechanism is clearing the ground and an operative position where the fulcrum mechanism is in engagement with the ground and acting as a fulcrum while force is being applied to the handles to swing the front loading end of the body to shovel up a load, with the,fulcrum mechanism assisting in the shovelling action by levering the sloping shovel end forwardly into a load of material.

Abstract: A wheelbarrow handle accessory has a tube member that slides over the end of a wheelbarrow handle, and a hand grip assembly including a partial sleeve that normally rests upon the tube member in aligned relationship, the hand grip assembly being rotatably supported from the tube member.

Abstract: An improved wheelbarrow in a disassembled condition is disposed in a carton that conforms substantially with the orthogonal dimensions of a tray of the wheelbarrow. The other components of the wheelbarrow comprise a frame subassembly, a pair of handle members, a wheel, an axle, and a number of fasteners, and these other components are disposed substantially entirely within an interior of the tray within the carton, such as during shipping and storage. The wheelbarrow is assembled by removing the wheelbarrow components from the carton, pivoting a pair of riser members of the frame subassembly with respect to a frame member of the frame subassembly, and attaching the pair of handle members to the frame member and to the riser members. The tray and the wheel are mounted to the riser members.

Abstract: A device to move heavy items made up of a substantially flat rectangular body used to carry heavy items, a handle assembly with two handles perpendicularly attached to an H-shaped handle stand that is perpendicularly attached to the proximal end of the substantially flat rectangular body. A sling is provided on each handle of the handle assembly to hold long and awkward items extending from the substantially flat rectangular body. A wheel positioned at the distal end and center of the substantially flat rectangular body is also provided to facilitate movement of the device and a cowl above and around the wheel, having an open front to allow the wheel to extend beyond the cowl and the substantially flat rectangular body.

Abstract: A stabilizer structure to be attached to the supporting legs of a wheelbarrow. The stabilizing structure comprises a pair of stabilizers each of which includes a horizontal section and a vertical section. Each leg of the wheelbarrow is fixedly secured to a horizontal section of a said stabilizer with the leg abutting against the vertical section of the stabilizer.

Abstract: A braking system for a cargo portage device, such as a wheelbarrow, that is biased in the “On” state to prevent the device from coasting away on its own when it is resting on an incline unattended by a user. This braking system enhances the safety of a device used by those who may be prone to forget to lock its brakes when it is left resting on an incline unattended or in situations in which children may have access to the device and use it as a wheeled toy. This braking system also enables the user of a wheelbarrow employing it to traverse obstacles, such as steps, logs, curbs, etc., within the wheelbarrow's path of travel and haul greater loads than can be realized using a conventional wheelbarrow.

Abstract: A liner for a wheel barrow having a body that prevents materials transported in a wheel barrow from mixing with impurities lying on the bottom of the wheel barrow. The liner has a liner body. The liner body is shaped to correspond with the body of the wheel barrow. The liner body has a top edge and a lip extending around a portion of the top edge. The lip is configured to receive at least a portion of an edge of the body of the wheel barrow. The lip aids in reinforcing the fit between the liner body and the body of the wheel barrow. When material residue such as cement or debris rests on the bottom of the wheel barrow, the lip helps prevent the liner from shifting within the body of the wheel barrow. Therefore, materials in the wheel barrow are less likely to fall out of the wheel barrow during movement of the wheel barrow. The liner can be removed from the wheel barrow to transport materials to a given location.

Abstract: The hiker's trail carrier may be used for transport of cargo while walking or hiking. The trail carrier may have a pair of lower longitudinal members having a wheel rotatably mounted therebetween at an axle end of each and a transverse member attached between the lower longitudinal members intermediate the axle ends and a forward end of each. A pair of upper longitudinal members may be spaced apart and attached to the transverse member and a pair of vertical members may be attached to the upper longitudinal members and to the axle end. A pair of handle members may be pivotally attached to the lower longitudinal members intermediate the axle end and the forward end.

Abstract: A wheelbarrow bumper for a wheelbarrow having a frame, a bin, and a wheel, the wheelbarrow bumper includes: a curved plate having a convexly curved outer surface and an inner surface; and, a first and a second side support members having a width and extending transversely from the curved plate, the first and the second support members each including an engaging portion adapted to connect to the frame of the wheelbarrow. The curved plate and the support members, as a whole, define a generally bracket-like cross-sectional configuration. Each engaging portion of the support members preferably includes an opening for receiving a clamping member to connect to the frame of the wheelbarrow.

Abstract: A semi-enclosed pouring chute attachment for a wheelbarrow. The attachment sits on the front of the wheelbarrow and is secured by upper side channels and either rope of shock/bungee cords from the sides of the attachment to the handles of the wheelbarrow. In an alternate embodiment, the wheelbarrow container may have a funnel end as an integral part thereof.

Abstract: The use of a pivotal coupling on a cart of the wheelbarrow type allows for a downwardly applied pressure to the user ends of the handles to tip the bucket to at least begin the dumping action of the cart. Following the initial downward pressure with the handles still elevationally displaced downward an upward lift applied to the user ends of the handles completes the dumping action of the cart. Use of multiple pivotal axises on the cart provide for an extremely efficient operation. Various enhancements are explained including locking of the orientation of the cart following the initial dump, wheel blocking to prevent rotation of the ground support wheel relative to the bucket during at least a portion of the final dumping action and stabilization enhancement to prevent lateral tipping of the cart during the final dumping action.

Abstract: An ability to move a wheelbarrow without lifting the rear part of the wheelbarrow is achieved by attaching a handle adapter that extends upward from the rearwardly extending handles of the wheelbarrow. Further, a converter kit converts a conventional single wheeled wheelbarrow into a three wheeled device. The handle adapter is a tubular construction and can be easily detached from the wheelbarrow. In one embodiment of the converter kit, a plate and a hollow tube are attached to generally U shaped resting arms for easy assembly and disassembly of auxiliary wheels. A second embodiment of the converter kit includes a clamp for easily adjusting the auxiliary wheels of the wheelbarrow.

Abstract: An improved wheelbarrow includes a pair of legs that are each configured as four-bar linkages and are collapsible. The wheelbarrow includes a frame assembly, a wheel, a tray, and a pair of handles. The frame assembly can be assembled by the manufacturer. The wheelbarrow can then be assembled by the retailer or the consumer by simply attaching the wheel, the tray, and the handles to the frame assembly.

Abstract: The present invention provides a spring powered wheelbarrow with a manually powered drive assembly. A foot crank winds a spring through a system of shafts and sprockets in a first direction. By releasing a brake upon a front wheel of a wheelbarrow, the wound spring transfers a rotational movement from a spring shaft to a freewheel sprocket adjacent to the front wheel, the rotational movement upon the front wheel assisting a user in pushing the wheelbarrow.

Abstract: A tilting mechanism incorporated into a conventional wheelbarrow, the wheelbarrow including a bucket portion, a pair of elongated handles supporting the bucket portion, and a front wheel. The tilting mechanism includes a frame adapted to being secured to a rearwardly extending location of the elongated handles and such that the bucket portion is disposed between the frame and the front wheel. A pair of elongated supports are incorporated into the frame and, in combination with the front wheel, support the wheelbarrow upon a surface. The frame includes structure for establishing an angle or incline, relative to an uneven or peaked surface, and is actuated to facilitate tilting of the bucket portion about a longitudinal axis extending through the wheelbarrow.

Abstract: Novel designs of self-leveling wheelbarrows are described and claimed. The inventive wheelbarrow provides novel features that allow the wheelbarrow to remain level on uneven or sloping terrain when parked, thereby providing more stability.

Abstract: A heavy duty configurable wheelbarrow with retractable handles, a bin (sometimes referred to in the prior art as a tray or bucket), with a wheel and legs on a frame that rotates on a hinge at the front of the bin such that the wheel, stand and frame rotate over the front of the bin and recess into the interior of the bin for storage and transportation and separately the handles fully recess into the frame of the bin.

Abstract: A wheelbarrow (10) comprising a frame (18A, 18B) having a pair of handles (2A, 2B) with each handle having a proximal and a distal end and a pair of downwardly depending support elements. A first wheel (7) is secured to the distal ends of the pair of handles (2A, 2B) by a frame element and a rear set of wheels (20A, 20B) is secured to the proximal ends of the pair of handles (2A, 2B) by a frame element (22). The first wheel includes an internal brake drum and internal brake shoes (9) secured to a brake cable with a cam and to a hand operated reversing brake lever. A load bucket (1) is mounted to the frame and is slideable moveable on the frame.

Abstract: A device for hanging implements comprising a hook member having two straight parallel arms with the first end of each arm joined by an arcuate section and with the opposite end of each arm extending at an angle with respect to its respective arm, and a generally flat base member for joining the hook to the implement.

Abstract: A bushing for use with a wheel assembly for low speed vehicles or tools, the wheel assembly including a tire, a wheel disk securely holding the tire in a shape, and a hub connected inwardly to the wheel disk and defining a longitudinal opening for receiving an axle therein, the bushing including: a cylindrical body, including a first and a second end faces, and a cylindrical outer surface longitudinally extending between the first and the second end faces and configured to fit within the longitudinal opening of the hub, the cylindrical body defining a longitudinal bore extending between the first end face and the second face and configured to receive the axle therein, wherein the cylindrical body has a seating length between ⅝ inch and {fraction (11/8)} inch, and the bushing is formed of oil-impregnated sintered metal. The bushing preferably includes a flange portion and a longitudinal groove at the out periphery of the cylindrical body.

Abstract: E-z Op Wheel Barrow With Three Wheels

Abstract: A combined device is designed for multiple purposes including: hauling and dumping, bagging lawn and garden debris, and simultaneously carrying gardening tools and supplies. The device includes a wheelbarrow device with a container that lifts from its rear and flips forward from a horizontal position to beyond vertical about a pivot point elevated by supports or braces such that the combined device can remain level with the ground while it is being emptied and thereby the combined device can stably maintain a load of gardening tools and supplies.

Abstract: A device to move heavy items made up of a substantially flat rectangular body used to carry heavy items, a handle assembly with two handles perpendicularly attached to an H-shaped handle stand that is perpendicularly attached to the proximal end of the substantially flat rectangular body. A sling is provided on each handle of the handle assembly to hold long and awkward items extending from the substantially flat rectangular body. A wheel positioned at the distal end and center of the substantially flat rectangular body is also provided to facilitate movement of the device and a cowl above and around the wheel, having an open front to allow the wheel to extend beyond the cowl and the substantially flat rectangular body.

Abstract: The current invention provides a motorized single wheel cart. The motorized cart is particularly suited for use in wilderness areas lacking modern roads. The motorized cart has a readily detachable motor and is capable of carrying several hundred pounds of cargo. The motorized cart will readily traverse streams, downed trees and rocks while carrying big game. Additionally, the motorized cart will be useful for search and rescue squads assisting injured hikers and backpackers.

Abstract: A forward dumping, two-wheeled barrow possessing the means to prevent inadvertent rearward dumping and/or injury to the operator is herein disclosed. The primary subassemblies of the forward dumping, two-wheeled barrow include a frame assembly, a wheel assembly, and the cargo receptacle. The frame assembly preferably includes an adjustable length handle assembly and a safety/spill prevention bracket located somewhere between the wheels and the end of the handle assembly. This novel feature prevents potential injury to the operator or nearby individuals (e.g. to the feet) and avoids the problem of emptying all or some of the receptacle's contents in an unintended location. In addition, the safety bracket provides a stable rearward loading position with minimal risk of tipping and/or rolling. The ergonomically designed barrow is fabricated of a variety of strong, lightweight materials (e.g. aluminum, reinforced plastics) to provide a high-strength-to-weight ratio.

Abstract: An ability to move a wheelbarrow without lifting the rear part of the wheelbarrow is achieved by attaching a handle adapter that extends upward from the rearwardly extending handles of the wheelbarrow. Further, a converter kit converts a conventional single wheeled wheelbarrow into a three wheeled device. The handle adapter is a tubular construction and can be easily detached from the wheelbarrow. In one embodiment of the converter kit, a plate and a hollow tube are attached to generally U shaped resting arms for easy assembly and disassembly of auxiliary wheels. A second embodiment of the converter kit includes a clamp for easily adjusting the auxiliary wheels of the wheelbarrow.

Abstract: A height adjustable handle arrangement for wheelbarrows includes a pair of rearwardly extending mounting stubs of an upper peripheral frame of a load carrying pan of the wheelbarrow. A multiple sleeve assembly is formed by a plurality of vertical stacked handle receiving sleeves. The sleeve assembly receives a mounting stub in a selected one of the sleeves, and a wheelbarrow handle member is received in another sleeve of the sleeve assembly. Fastener receiving bores in the sleeve assemblies, mounting stubs, and handles are appropriately aligned and receive fasteners such as bolts which are secured by nuts.

Abstract: A liner for a wheel barrow having a body prevents materials transported in a wheel barrow from mixing with impurities lying on the bottom of the wheel barrow. The liner has a liner body. The liner body is shaped to correspond with the body of the wheel barrow. The liner body has a top edge and a lip extending around a portion of the top edge. The lip is configured to receive at least a portion of an edge of the body of the wheel barrow. The lip aids in reinforcing the fit between the liner body and the body of the wheel barrow. When material residue such as cement or debris rests on the bottom of the wheel barrow, the lip helps prevent the liner from shifting within the body of the wheel barrow. Therefore, materials in the wheel barrow are less likely to fall out of the wheel barrow during movement of the wheel barrow. The liner can be removed from the wheel barrow to transport materials to a given location.

Abstract: An excavation cleanup device is provided that includes a frame configured to support a collection tray that defines a through opening with a fence extending therearound. The through opening is configured and arranged to admit excavation devices such as augers. The collection tray has a low profile configuration that permits it to lie flat on the ground during the excavation process, and further includes an outer rim that cooperates with the fence to aid in the retention of materials deposited on the collection tray by the excavation device. The low profile construction of the collection tray also serves to minimize the risk of interference between the excavation cleanup device and the device used to perform the excavation process. The excavation cleanup device further includes a pair of handles and a wheel, to facilitate ready transportation of the excavation cleanup device from one site to another.

Abstract: A rollbar support unit device to be assembled to a wheelbarrow. A mount is fastened to a front portion of a tray. A first leg having a first curvilinear portion which is positioned to curve outwardly from the front portion is connected to the mount. A second leg having a second curvilinear portion which is positioned to curve outwardly from the front portion is also connected to the second leg support connected to the first tray and second tray respectively. The rollbar support unit device is configured to pivot the wheelbarrow in a safe and smooth manner.

Abstract: A securing device for contents of a wheelbarrow for preventing the content of a wheelbarrow from falling out of the wheelbarrow. The securing device for contents of a wheelbarrow includes a generally flexible panel having a first end edge and a second end edge. A first hook is attached to the first end edge. A tubular member has a first end and a second end. A slot extends through a peripheral wall of the tubular member. A spindle is rotatably mounted in the tubular member. The second end edge extends through the slot and is attached to the spindle. A second hook is attached to the tubular member. The first and second hooks are attached to the upper edge of a wheelbarrow such that the panel is extended over the wheelbarrow.

Abstract: A collapsible wheelbarrow is constructed with a pliable bin and pivotally connected handle members. The handle members are pivotally connected to a frame about first pivot axes, wherein the handle members may be moved outwardly away from an imaginary bisecting line of the wheelbarrow to provide easier loading capabilities. The handle members may also be pivotally connected about second pivot axes to allow the handle members to pivot inward to reduce the width of the wheelbarrow for convenient storage. In an alternative embodiment, the handle members are rigidly connected to the frame.

Abstract: An auxiliary wheeled frame for wheelbarrows having a lateral beam being attached to the legs of a typical wheelbarrow and having attached at a bottom outer end thereof a plurality of pivotable, rotating wheels one each attached at each exterior end of the lateral beam exterior to a position where the legs of a typical wheelbarrow normally rest on the ground. A plurality of braces are provided with the braces being either removably or permanently secured one each to an upper side of said lateral beam immediately interior of each rotating wheel and to one each of the legs of a typical wheelbarrow. A horizontal cross bar is provided with the horizontal cross bar being secured between interior portions of each of the legs of a typical wheelbarrow. The rotating wheels may be removably attached, may have brake means, and may be castor-type wheels. A plurality of second diagonal bars may be secured between interior portions of each of the legs of a typical wheelbarrow. The lateral beam may have a toolbox.

Abstract: A rollbar support unit device to be assembled to a wheelbarrow. A mount is fastened to a front portion of a tray. A first leg having a first curvilinear portion which is positioned to curve outwardly from the front portion is connected to the mount. A second leg having a second curvilinear portion which is positioned to curve outwardly from the front portion is also connected to the second leg support connected to the first tray and second tray respectively. The rollbar support unit device is configured to pivot the wheelbarrow in a safe and smooth manner.

Abstract: A wheelbarrow including a main frame having a wheel mounted adjacent a forward end, a handle located at a rearward end and a ground engaging support portion located between the ends. A load carrying body is releasably mounted on the main frame, either directly or by means of a sub frame. Optionally, the body is mounted to tip forward on the main frame to facilitate dumping a load. A second load support is mounted on the ground engaging support to extend laterally across the frame, above the ground, but below the mount for the load carrying body. When the body is removed from the main frame, a load can be carried on the second load support. The second load support is particularly useful for carrying heavy flat loads, such as paving stones.

Abstract: An apparatus for the application of a braking force to a wheel of a wheelbarrow, hand cart or other type of a cargo portage device includes a twist grip mechanism with a latching type of a ratchet attached to the handlebar of the device. As the twist grip mechanism is rotated a progressive braking force is applied to the wheel by tightening a brake band that extends around a drum that is attached to the wheel. A cable is attached at one end to the twist grip mechanism and to the brake band at its remaining end. The ratchet maintains the braking force that is applied until a thumb release lever is depressed which disengages a ratchet dog from contact with any of a plurality of ratchet teeth.

Abstract: A wheelbarrow sifter attachment including a bin portion coupled with respect to an outer edge of a wheelbarrow. The bin portion has a plurality of drainage slots formed therein.

Abstract: A tipping wheelbarrow is described including a main frame providing ground engaging support portions and two rearwardly extending handles, a wheel rotatably mounted via an axle on the main frame towards the front thereof, and a body unit for receipt of a load pivotally mounted on the main frame. The body unit is mounted such that the body unit tips with respect to the main frame when the handles are lifted up. The body unit is mounted on the main frame for pivoting relative thereto about an axis rearwards of the axle and forwards of the ground engaging portions of the main frame. The tip of the body unit is limited by the body unit coming into contact with the wheel.

Abstract: A wheelbarrow is described comprising a frame, a body for receipt of a load and a wheel, where in use the body is mounted on the frame and the wheel is rotatably mounted on the frame by means of an axle towards a front thereof and wherein the wheel is demountable from the frame without the use of tools. The axle is substantially cylindrical with a head at one end and a retaining formation at or adjacent the second end for co-operation with an axle retaining clip. In some embodiments the body is detachably secured to the main frame in a manner which is readily detachable without the use of tools, and in other embodiments the body is permanently secured to the main frame.

Abstract: A human assisted walking robot formed by a motor, a cargo bin, a pair of legs mounted to the carrier; and a stabilizing support mounted at its proximal end to the carrier and having a wheel rotatably mounted to the distal end. The motor drives the first and second leg members resulting in a walking motion. Each leg is formed by a thigh link and a shank link. A four-bar linkage is coupled between the motor and the thigh and shank of each leg so that rotational motion generated by the motor produces a walking motion by the legs.

Abstract: A tracked carrier(10) having a frame(6) and a handle(1) secured to the frame. The handle(1) has a proximal and a distal end thereto and may have a pair of downwardly depending support elements. The handle(1) has a brake lever(2) for controlling brakes mounted thereon. A first wheel(14) is secured to the distal end of the handle by frame elements and a pair of drive tracks secured to the proximal end of the handle by the frame elements. A drive engine(5) is mounted on the frame(6) and linked to the pair of drive tracks(16) by a drive mechanism. A throttle mechanism is operably engaged to the drive engine(5). A hydraulic pump(7) linked to an hydraulic drive motor. The hydraulic pump(7) is linked to a pair of drive track arm levers.