Abstract: A recovery unit for use by one truck tractor in towing another disabled truck tractor has an anchoring frame assembly with a king pin for coupling to a fifth wheel of the towing tractor and an attaching frame assembly with a king pin for coupling to a fifth wheel of the disabled tractor. The attaching frame assembly is mounted for pivotal movement relative to the anchoring frame assembly between stored and extended conditions. Actuating cylinders and an auxiliary frame assembly are selectively operable to pivot the attaching frame assembly relative to the anchoring frame assembly between the stored and extended conditions and to pivot the attaching frame assembly to and from an erected position relative to the anchoring frame assembly once the attaching frame assembly has been first moved to its extended condition and coupled to the fifth wheel of the disabled tractor.

Abstract: An apparatus for recovering and towing a vehicle. The apparatus is provided on a truck that has a winch with a draw cable. The apparatus includes a crane having a frame, which is connected to the truck, a boom, which is pivotably connected to the frame, and a lifting bracket, which can be connected to a vehicle that is to be towed. The draw cable is detachably connected to the boom by a coupling. To lower and raise the lifting bracket via the draw cable, the pivotable connection of the boom to the frame is effected by a substantially horizontally extending shaft connected to the frame.

Abstract: A hand operated cycle apparatus including a cycle frame having a pair of spaced apart rear wheels rotatably attached along the horizontal axis to the rear of the cycle frame. A yoke is pivotally attached to the front of the cycle frame and a front wheel is rotatably attached to the yoke. A drive mechanism is provided for rotating the front wheel and pedals are attached to an upper portion of the yoke and to the drive apparatus for selectively turning the drive apparatus by hand. A seat is attached to a rear portion of the cycle frame. Brakes are operably attached to the cycle frame for selectively holding both of the rear wheels from rotating with respect to the frame. A footrest is provided for supporting the feet of the cycle user.

Abstract: This trailer comprises a U-shape load-carrying casing with a hitching bar across the free ends of the legs of the casing. The center of said cross-bar is hitched to the vehicle between the two wheels thereof by means of a universal joint hitch. The load carrying casing extends on both sides of the vehicle and across the back thereof. Two wheels support the back of the casing. The universal hitch enables the vehicle, such as a motorcycle, to roll, rotate or pitch relative to the trailer, such as when taking curves and/or riding on bumpy roads of grade and down-grade. The hitch is positioned below the horizontal plane passing through the vehicle axles and in front of the center of gravity of the vehicle. The trailer and vehicle assembly is very stable both while riding and braking. Also, the portions of the casing extending on both sides of the vehicle constitute a protection for the vehicle rider and passenger.

Abstract: A wheel lifting unit for mounting to a tow truck has a base that is carried by the truck under the bed. An extending device will retract and extend the base. A telescoping member, which also retracts and extends, is mounted to the base. The telescoping member includes a neck member that pivotally connects to arms mounted to the base. The neck member will also move between retracted and extended positions. Lateral extension members are located at the end of the telescoping member assembly. Wheel supports on the lateral extension members incline outwardly to accommodate different wheel sizes.

Abstract: A wheel lift type vehicle lifting and towing device which includes an extensible and tiltable boom extending rearwardly from a towing vehicle when in use and provided on its end thereof with a pair of wheel receiving members for engaging the wheels of a vehicle to be towed, and then lifting and towing the vehicle. The wheel receiving members are comprised of a fixed prong and a movable L-shaped prong which may be folded to a storage position when not in use. When the entire device is in a storage position, it is retracted substantially out of view within the understructure of the body of the towing vehicle.

Abstract: A tow basket for use in towing a vehicle. The wheels of the vehicle to be towed are lifted onto the tow basket as the basket approaches and contacts the vehicle wheels. In a preferred embodiment, the vehicle wheel is lifted by a conveyor belt onto a first roller and thus carried upwards and into the tow basket, the first roller being operatively connected to the supporting wheels of the tow basket, and the belt being superposed around and upon a plurality of rollers including the first roller. As the vehicle is lifted, a pivoting structure within the tow basket pivots with the shifting weight of the vehicle from an initial position to a final position where the wheel is securely retained. In an alternative embodiment, a novel connection is provided between the tow truck boom and a cross bar having a tow basket slidably mounted on either end; the connection provides for some degree of lateral movement during loading and unloading so that the vehicle may be loaded from or unloaded onto an uneven surface.

Abstract: A steerable, powered, front wheel driven, three-wheeled vehicle for a handicapped person which is movable selectively in a forward or rearward direction and has a vehicle frame supported in part by a pair of transversely spaced rear wheels suitable for indoor travel, is adapted to outdoor use by backing its rear wheels onto a transversely extending, auxiliary frame supported on a pair of transversely spaced driven outdoor wheels. The auxiliary frame has a transversely extending cradle mounted such that, in a first forwardly and downwardly tilted position of the auxiliary wheel frame, the forward portion of the cradle rests substantially on the ground and, in a second position, in which the frame is generally level, the front and rear portions of the cradle are both disposed above the ground, and the rear wheels of the powered vehicle are supported by the cradle above the ground.

Abstract: A towing vehicle which has a lifting beam at its rear end for lifting a vehicle prior to being towed is provided with tracks which extend longitudinally of the vehicle and at least one mass which can be moved along the tracks to vary the front axle loading of the vehicle, thus enabling the steering ability of the vehicle to be maintained even when lift/towing a heavy load.

Abstract: Vehicle towing apparatus is disclosed which is capable of being mounted on a pickup truck or van without losing the use of any substantial part of the truck or van body.

Abstract: A recovery and towing vehicle which has been specifically designed for transport in a freighter aircraft and must necessarily therefore be of low profile to fit within the cargo space of an air-transport vehicle comprising a main chassis (1) on which is mounted a cab (3) with a removable upper part (5) and a slewing crane (7) having an extendable boom (11), a winch (10) and spades (23) mounted in slideways (29). The vehicle also is provided with a traditional supported lift towing boom (25) but instead of being mounted for pivoting movement on the chassis (1), the boom (25) is mounted for generally vertical sliding movement. For this purpose, slideways (29) are provided on the inside of housing (31) for the spades and vertical movement of the boom (25) is under the control of the main crane boom (11) which can be connected to the boom (25) by a lift strop (41).

Abstract: A towing apparatus of the wheel lift variety is provided with wheel support members that move horizontally or vertically relative to a fixed-position support beam. The support members are mounted to the beam by pivotable, tapered collars and include a depending retainer that has both an extended height and depth to contact a substantial portion of the wheel circumference. The apparatus also provides means for rotating the support beam both above the below the horizontal. All of these features facilitate use of the towing apparatus.

Abstract: Towing apparatus mounted on the rear of a towing vehicle for lifting and towing a disabled vehicle by its wheels has a lifting boom housing for telescopically carrying an extendible boom on which wheel engaging forks are supported. The lifting boom housing disposition is controlled by two hydraulic cylinders. One cylinder is fixed at one end and pivotably connected to the lifting boom housing at the other end which is also attached to and constrained by slidable guide members mounted in slideways for movement in an inclined linear path downwardly and rearwardly relative to the towing vehicle. The other cylinder is pivotably connected to the boom housing and to the guide members for controlling the attitude of the boom housing relative to the roadway. Additionally the wheel engaging forks have a tubular square cross sectional configuration telescopically mountable on a tow bar having a similar configuration so that the forks may be disengaged from the tow bar and disposed at 90.degree. or 180.degree.

Abstract: A wheel lift towing apparatus is disclosed for mounting on the rear end of a tow truck or other towing vehicle for engaging the wheels of an immobilized vehicle to be towed. A rearwardly extending boom assembly is mounted at the rear end of the tow truck. Wheel lift carriages are mounted on the free end of the boom assembly for engaging the wheels of the immobilized vehicle for lifting the vehicle. An inclined ramp and follower mechanism is provided between a mounting bracket on the tow truck and the boom assembly for guiding upward lifting movement of the boom assembly and for effecting angular upward movement of the wheel lift carriages greater than the upper movement of the forward end of the boom assembly. Each wheel lift carriage is in the form of a fork-like structure having a pair of arms positionable on the inner and outer sides of a wheel. The inner arm has an aperture for insertion thereinto of the inner end of the support rod.

Abstract: An apparatus for being attached to the fifth-wheel mechanism of towing tractor for towing a disabled tractor-trailer. An arm is pivotally mounted on a body for movement between one or more raised positions and a lowered position. The body is attached to the towing tractor. A coupling mechanism is provided to attach the front of the disabled tractor-trailer to the arm. A lifting mechanism is provided to move the arm between the raised and lowered positions.

Abstract: Apparatus adapted to be mounted on the bed of a towing vehicle for lifting and towing disabled vehicles, particularly large vehicles. The apparatus includes an extendible boom disposed for positioning beneath the disabled vehicle and retracted for moving the disabled vehicle close to the rear of the towing vehicle. The boom is pivotable about a substantially horizontal axis on an elevator from a vertically disposed storage position to its operative position, the elevator being slidably mounted in slideways for vertical movement between the storage position and the operative positions. The elevator is supported by an extendible beam which is vertically driven for raising and lowering the elevator and which is extendible for varying the angular inclination of the elevator which may pivot relative to the slideways.

Abstract: A hitch-borne vehicle transport releasably bears the entire weight of a vehicle having at least one pair of coaxial wheels separated by an axle, upon a box-end trailer hitch receiver. The axle is engaged and captured while the vehicle is on the ground by clevises coupled to a transverse bar parallel the axle and pivotingly borne through a cantilever by the box-end trailer hitch. The part of the vehicle adjacent the axle is hoisted off the ground to an elevated position. The vehicle is then pivoted about the axle to an upright position, where it is retained by engagement of the vehicle's graspable body member into a cantilever-mounted clevis. Thus held, the vehicle's entire weight is transmitted through its axle and graspable body member to the box-end trailer hitch for safe, convenient transport or storage.

Abstract: This wrecker assembly is removably received on a truck body, and is designed to pull at an angle to the right or left, when desired. Primarily, it consists of a bracket mounted boom, which includes a rotatable head at its top, and a projecting pin on the boom is freely received in a horizontal slot in the head. The head further includes a set screw or bolt, for rendering the head secured at the desired angle.

Abstract: A towing device for directly towing an all terrain vehicle (ATV) or an all terrain cycle (ATC). The towing device is removably secured to the ATV/ATC and allows easy towing and transportation of such a vehicle by utilizing the vehicle's rear wheels thereby eliminating the need for a separate flat bed or wheeled trailer. The tow device is in the form of a bar having an attachment mechanism for removably securing the bar to the ATV/ATC frame and a hitch assembly for removably connecting the tow bar to a car or truck ball hitch or any other type of conventional towing hinge. In one embodiment for a three-wheel ATV/ATC, only one attachment mechanism is provided and the forward end of the towing bar, toward the hitch, includes a recess in which the single front wheel is received. The bar, which can be either one or two pieces, also includes a bend so that when hitched for towing, the front wheel is raised off the ground allowing the rear wheels to provide the rolling support required for towing.

Abstract: Automobile towing apparatus for mounting on a tow truck has a pivotal boom that projects rearwardly from the truck. The boom has a forward portion extending along the truck, the rear end of this forward portion being connected to a downwardly extending portion located just beyond the rear of the truck. The lower end of the downwardly projecting portion supports a rear portion that is extensible and in turn supports a transverse beam, on the ends of which there is mounted a pair of vehicle lifts for engaging and lifting the wheels of a disabled vehicle. This beam has limited rotation about a front to rear horizontal axis to accommodate loading a vehicle standing on a sideways slope. The boom is pivotable, optionally, about a pair of transverse horizontal axes located at the respective ends of the forward boom portion.

Abstract: A vehicle towing mechanism adapted to be utilized in conjunction with a truck for towing a wheeled vehicle. The towing mechanism includes an elongate main support member which is pivotally connected to the truck and extends rearwardly therefrom. The main support member has vertical, spaced side walls formed of a prestressed high tensile metal and is constructed to have an upwardly bowed configuration; such configuration is retained by an upper wall fixedly attached thereto. A vertical riser member is adapted to be vertically slidable relative to the truck rear end and is connected to the main support member to inhibit lateral movement. The main support member is connected to an apparatus which supports laterally spaced wheels of the vehicle and includes wheel-engaging devices for each wheel. Each device has a rotating section and a fixed section. Wheel retainers are adapted to secure the wheels within respective devices and securely lock the wheel-supporting apparatus in a selectively fixed position.

Abstract: A hydraulic wheel lift device is adapted to be used with tow vehicles. The device is attached to a tow truck by means of a main boom pivotally secured to a wheel boom, which abuts against the tread portions of tires that the device will lift. A pair of L-shaped arms pivotally secured to the wheel boom are actuated to swing so that they frame the underside of the tires. As a result, each tire is framed by a U-shaped bracket consisting of the wheel boom and the L-shaped arms. The main boom is lifted and in turn lifts the tires and the vehicle being towed.

Abstract: A vehicular towing device comprised of an elevation arm having a socket on one end and pivotably mounted to a mounting bracket on an opposed end interposed there between an hydraulic cylinder along with associated support cylinders so that the socket on the end of the elevation arm may rotationally receive therein the ball installed on a towed vehicle, the hydraulic cylinder co-acting with the elevation arm to elevate the front end of the towed vehicle off the ground surface so that the towed vehicle may be towed with only the rear wheels in contact with the ground surface.

Abstract: A vehicle lift device which may be easily attached to an ordinary truck for use in towing disabled vehicles. The lift device includes a frame which is secured to the truck, a telescoping beam pivotally mounted adjacent one end to the framework, and piston means secured between the framework and the beam one end for shifting the beam between a raised and lowered position. A crossbar is mounted at the other end of the beam and includes grids mounted thereon for receiving the wheels of the disabled vehicle.

Abstract: A fifth-wheel to fifth-wheel tow bar for semi-tractors which permits a selective height adjustment of the towing end of the bar to adapt to a proper level for attachment to the vehicle to be towed, and including a triangulated support system and hydraulic powered adjustment and lifting means in the preferred embodiment.

Abstract: The specification discloses an apparatus for easily and rapidly, yet securely, interconnecting two truck tractors by their fifth wheels to enable one tractor to tow the other tractor. More particularly the apparatus includes a beam fixedly secured to the towed tractor and a ramp secured to the towing tractor. The beam is slidably supported on the ramp so that the towed tractor rear wheels can be raised for towing by backing the towing tractor toward the towed tractor causing the ramp to lift the beam.

Abstract: A fifth wheel wrecker hoist is illustrated having apparatus which affords longitudinal adjustment between the fifth wheel and the boom which includes a longitudinal guide having a plurality of spaced openings for use in connection with a support carried by the fifth wheel having a retractable plunger for engaging one of the openings respectively for positioning the boom in a desired adjusted position.

Abstract: A mechanical wheel lift for engaging and lifting the wheels of a car for use on a tow truck having a winch and a cable thereon. The wheel lift comprises a support coupled vertically to the rear of the truck, a pair of vertical tracks coupled to the support, a trolley vertically movable along the tracks, a pair of cam follower rollers coupled to the support, a pivot member pivotally coupled to the trolley and having a planar cam surface thereon slidably engaging and inclined to the cam follower rollers, and a pair of wheel-engaging forks coupled to the pivot member. The winch and cable vertically reciprocate the trolley to thereby vertically reciprocate the forks. During this movement, the pivot member pivots the forks towards or away from the truck. The wheel lift is stowable, can be used without removal of tow slings and avoids the use of hydraulics.

Abstract: A pair of laterally spaced support pads are attached to the understructure of the front end of a towage vehicle for engagement by a crossbeam adapted to fit between the vehicle understructure and the towing chain extending from a wrecker towing sling tow bar to the vehicle body behind the wheels. Each support pad includes an upper surface adapted for engagement against the vehicle understructure and the lower surface spaced vertically below the upper surface at a distance which positions crossbar to route the tow sling to eliminate or lessen the interference with the vehicle front end which would otherwise result from engagement of the crossbeam directly upon the understructure of the towed vehicle. A flange portion depends from the lower surface of the pad and is adapted for engagement by the crossbeam to assure a certain longitudinal positioning of the crossbeam.

Abstract: A carrier having special utility for transporting recreational vehicles such as motorcycles, bicycles and snowmobiles is designed to be used either as an independent towable trailer or, with or without such vehicles carried thereon, to be removably coupled to a towable travel trailer. This carrier includes a V frame structure having a hitch ball coupling at the apex for detachable connection to a towing vehicle and opposed wheel assemblies capable of quick and easy adjustment to be either in or out of ground engagement or, if desired, completely removed when not required. The diverging members of the carrier frame are designed to embrace and be detachably secured to a conventional tongue with a hitch ball coupling on a travel trailer, and a hitch ball is suitably mounted intermediate the diverging members of the carrier frame for registration with the standard hitch ball coupling on the trailer tongue.

Abstract: A trailer is described, whose bed is controllably adjusted in height to facilitate the loading, transportation and unloading of truck tractors and truck units. The trailer is provided with a kingpin to couple with a 5th wheel of a truck tractor having a compressed air-braking system. The trailer bed slopes downwardly, and terminates in a further downwardly sloping ramp section onto which the front or rear wheels of the vehicle to be transported is brought to move in being placed onto the trailer bed. An actuable switch is provided to cooperate with the air-braking system in filling an expandable air bag with the braking system's compressed air when it is desired to raise the trailer bed, or to bleed the compressed air therefrom when it is desired to lower the bed.

Abstract: Disclosed is a towing vehicle or wrecker of the type in which a winch drawn cable is attached to the trailing portion of an auto or truck to be towed and a carrier member ascends an inclined track elevating the leading portion of the load as the cable is winched in. The apparatus is characterized by pivotal mounting of the inclined member with a hydraulic positioning cylinder for aiding in acquisition of a load, such as a disabled auto which is ditched or laterally displaced from the wrecker. The pivoted, inclined member also facilitates cornering of the wrecker and load when in motion.

Abstract: A vehicle towing trailer comprises a substantially T-shaped trailer body including an axially extending elongated frame and a cross frame connected to a rear end of the elongated frame, a swivel platform supported on the cross frame, a lift arm mounted on the trailer body for lifting and lowering the rear end of the trailer body, a pair of wheel assemblies each including one or more ground engaging wheels supported by a bracket which is detachable to the trailer body by insertion of one or more axially extending male members into one or more cooperating female members from a front side toward a rear side of the cross frame in a direction opposite to a running direction of the trailer.

Abstract: A hydraulic vehicle lift and tow bar mounted at the rear of a tow truck which has a beam supporting two frames that are placed under a pair of wheels of the vehicle to be towed. A hydraulic cylinder raises the beam to lift the towed vehicle. The frames are pivotedly mounted to allow turning during towing and to permit them to be folded back against the beam during storage. The beam telescopes to reduce the distance it protrudes behind the truck when not in use.

Abstract: A truck for towing disabled vehicles is provided with a cab controlled or a remote controlled vehicle lifting assembly including pairs of claws which will automatically engage a pair of the wheels of a vehicle and enable the vehicle to be lifted and towed, the vehicle being carried on its own suspension system during towing. The assembly includes a crane mounted and arranged so that the load thereon is carried forward of the rear axle of the tow truck--this increases the tow capacity of the truck and provides stable operation of the crane. The claw assembly may be locked by a ratchet and strap arrangement which retains the vehicle wheels in the assembly in their forward position and prevents release due to jolts and bouncing.

Abstract: A tow sling for towing a bus comprising an angular head gear adapted to be secured to the tow bar of a tow truck. The angular head gear is provided with a pair of spaced apart slots each adapted to receive one end of an H-iron. Each of the H-irons are provided on their other end with hooks for securing the tow sling to the undercarriage of the bus. Additional anchors are provided intermediate the hooks and the end of the H-iron secured in the slots of the head gear.

Abstract: A portable hoist that can be mounted in a pick up truck for lifting objects and for the lifting and towing of disabled vehicles. The hoist can be used either in or out of the truck.

Abstract: A device for supporting and towing a trailer includes a first part engageable with the kingpin of the trailer, a second part engageable with an edge portion of the trailer, and a pair of tension members extending from the first part past the second part at spaced positions therealong, and secured to a supporting or towing vehicle.

Abstract: A towing vehicle that has a tiltable boom includes wheel lift apparatus including a support plate adapted for attachment to the bumper of the towing vehicle and carrying a slideway receiving a vertically moveable slide gate and a lifting beam pivotably mounted on the gate for rotational movement from a stored position within the bed of the towing vehicle to operative positions extending rearwardly of the towing vehicle. The support carries pivotable legs moveable by linkage attached to the beam, the legs having sockets for receiving lugs secured to the beam when the beam is in the operative positions. When the beam is in the operative positions the gate may be lowered to drop the beam for loading a disabled vehicle onto wheel receiving members carried by the beam. The gate is thereafter raised together with the beam for towing the disabled vehicle. The gate is raised and lowered by the tiltable boom or a winching cable and the legs preclude the beam from tilting downwardly.

Abstract: A pair of relatively adjustable elongate struts adapted to be inserted between a part of a motorcycle chassis and a supporting wheel to block flexing of the motorcycle suspension system when the motorcycle is being hauled on a carrier over rough terrain or the like. A device is provided at the remote end of one of the struts to interlock with the tread of the wheel tire and another element is provided at the remote end of the other strut to interlock with the chassis part to prevent dislodging of the struts due to bouncing of the motorcycle while in transit. A locking ring is slidable into position to embrace both struts to lock the same in extended colinear relationship.

Abstract: An assembly for adjusting first and second portions of a vehicle relative to each other, the assembly having a main frame adapted to be secured on the first portion of the vehicle in fixed relation thereto with the second portion of the vehicle above the main frame in an unadjusted relationship; a subframe mounted on the main frame in upstanding relation adjacent to the second portion of the vehicle; and a belt interconnecting the main frame and subframe and being tensionable to engage the second portion of the vehicle in supporting relation thereto.

Abstract: A jacking point structure for an automotive vehicle, includes a bracket fixed to the underside of a trunk compartment at a rear portion of the vehicle, and a hook fixed to the bracket. The bracket has a first wall extending horizontally and a second wall extending vertically. Also, the bracket has a channel portion at its center which functions as a jacking point preferably at the rear end of the first wall. The hook extends horizontally in the backward direction of the vehicle and does not project downwardly. It is preferable that the hook is formed in a U-shape and welded at its legs to the first wall in such a manner that the channel portion of the bracket is held between the legs of the hook.

Abstract: Cargo in the nature of a farm machine, such as a grain drill, is combined with transport structure in the form of a mobile carrier to improve upon over-the-road travel and other movement in a manner to permit rolling support by the ground wheels of both the carrier and the machine during the towing operation. The carrier has a normally inclined bed to facilitate loading of the machine thereupon. Power means, for example, that with which the machine is equipped to control depth, is then used to raise the lower end of the carrier off the ground prior to coupling the carrier-machine unit with a tractor or other towing vehicle.

Abstract: Vehicle lifting and towing apparatus utilizes a pair of frames, each pivotably mounted to a vehicle, and having their distal ends interconnected by cable means. In one embodiment, rotation of one frame causes rotation of the other. In that embodiment, a winch remote from the frames is coupled to one of the frames, so that winching of the winch cable causes both frames to rotate about their respective axes. Means are provided in association with the other of the frames to secure that frame to a vehicle to be towed. In another embodiment, one frame is fixed in a generally vertical orientation, and a winch is mounted on that frame. The second frame is caused to rotate by operation of the winch.

Abstract: A method of carrying a wheelchair externally of a vehicle without first folding the wheelchair. The wheelchair is placed so that its rear wheels rest against the rear of the vehicle; it is then lifted by a bumper-attached carrier, and the rear wheels roll up the rear bumper of the vehicle.

Abstract: A front and rear pair of crawler assemblies are provided for supporting the ring of a ring supported crane so the crane can travel under load. The front pair of crawler assemblies which form an independent transporter mechanism are selectively and reversely powered to facilitate forward and reverse as well as turning movement. The rear pair of crawler assemblies are disposed in idling arrangement.

Abstract: A vehicle towing apparatus includes right and left vehicle lifts releasably locked and pivoted to a pivot member and movable between a storage position alongside the low beam of the boom. The boom and/or the low beam may be hydraulically actuated or mechanically actuated by a power winch, cable and derrick boom. A sling is provided suitably mounted for pivotal movement adjacent the rear end of the low beam. A mechanical support, including a fixed and a movable member, engages the boom to adjust the height thereof between lower loading and upper towing positions. The mechanical support is affixed to the vehicle frame and is independent of the hydraulic or mechanical actuation of the boom and/or low beam to permit unloading of same.

Abstract: A detachable crane or hoist for mounting on the bed of a pickup truck or other vehicle is constructed from tubular members of square cross section. The structure is readily secured to the truck bed and the boom may be extended to selected lengths with guy lines arranged for the length selected. The boom is pivotally mounted on a roller mounted base and is easily erected and dismantled. A post or column is provided to guide the boom during vertical movement and is extendable to provide raised positions for guy lines and for the hoisting cable. A removable stop on the post provides a secure rest for the boom in its collapsed and lowered position. Short anchoring bars horizontally adjustable in sleeves secured to the rearward end of the structure are used for securing the structure to the truck bed. These bars may be replaced by long bars fitting the same sleeves and also sleeves in the forward end of the structure. The long bars are effective for facilitating removal of the crane from the truck.

Abstract: A traveling attachment including a pair of crawler assemblies and frame elements are provided for interconnection to the ring of a ring supported crane so the crane can travel under load. The crawler assemblies may be pivotally mounted and reversely powered to facilitate turning.

Abstract: A cycle rack for a trailer hitch the construction being such as to easily mount and dismount the cycle rack at the same time allowing for the normal function of the trailer hitch.