Abstract: The invention relates to a motorizing device (1) for moving an aircraft (A) provided with a landing device (L) having wheels (W) on the ground, the motorizing device comprising at least one electric motor (2) having an output shaft provided with means for its rotational connection to at least one of the wheels (W) of the landing device for driving said wheel in rotation, and an electronic control unit (3) connected on the one hand to the motor to control it and on the other hand to a control interface (4) from which the aircraft pilot can transmit control signals which the electronic control unit (3) is arranged to transform into motor control signals, characterized in that the control unit is arranged to implement a first control law having determined dynamics to promote an aircraft movement speed and a second control law having dynamics to promote aircraft manoeuvrability.

Abstract: A transporter for transporting a load over a surface. The transporter includes a support platform for supporting the load. The support platform is characterized by a fore-aft axis, a lateral axis, and an orientation with respect to the surface, the orientation referred to as an attitude. At least one ground-contacting element is flexibly coupled to the support platform in such a manner that the attitude of the support platform is capable of variation. One or more ground-contacting elements are driven by a motorized drive arrangement. A sensor module generates a signal characterizing the attitude of the support platform. Based on the attitude, a controller commands the motorized drive arrangement.

Abstract: A mobility device includes at least two drive wheels mounted on a shaft; a drive controller drivingly coupled to the shaft; a seat mounted to a tilt mechanism such that the seat is able to tilt in a forward, backward, left and right directions as a result of the user shifting their body weight in either of those directions; a weight displacement sensor connectable to the tilt mechanism and the drive controller such that upon sensing a weight displacement of a user in a particular direction the weight displacement sensor causes the drive controller to impart drive to the drive wheels to move the mobility device in the direction of the sensed displaced weight of the user so that the mobility device is able to be driven in a forward and backward direction and steered in a left or right direction.

Abstract: Provided is an upper slewing body allowing elements to be compactly arranged while preventing required length of a hydraulic pipe from increase. The upper slewing body includes an upper frame, an engine, a hydraulic pump coupled thereto, a control valve forward of the engine and rearward of a slewing axis, and a rear tank between the engine and the control valve. The control valve is oblique to a frame lateral direction so as to locate a front end portion thereof forward of an inner end portion thereof. The rear tank has a rear opposition side surface opposed to a rear side surface of the control valve while being oblique to the rear side surface thereto.

Abstract: A motor vehicle includes a cab unit (3) tiltable relative to a vehicle frame (2) between a lowered state and a raised state. A first circuit (10) on the vehicle frame circulates a first medium. A second circuit (20) in the cab unit circulates a second medium. A heat transfer arrangement (4) transfers heat between the media. The arrangement includes a first heat transfer unit (11) on the vehicle frame, and in the first circuit and the first medium flows through it, and a second heat transfer unit (21) on the cab unit and in the second circuit and the second medium flows through it. These heat transfer units (11, 21) are in heat-transferring contact when the cab unit is in the lowered state and are separated when the cab unit is in the raised state.

Abstract: A front panel opening/closing system includes a hydraulic cylinder, a tilt cylinder, a tilt pump, and a valve. The hydraulic cylinder is connected to a front panel of a cap to perform an operation of opening/closing the front panel. The tilt cylinder is connected to the cap to perform an operation of tilting the cap. The tilt pump is connected to the hydraulic cylinder and the tilt cylinder through a hydraulic line to provide oil pressure. The valve is disposed at the hydraulic line of the tilt pump and the tilt cylinder. When the valve is positioned at a first position, the oil pressure is supplied from a hydraulic pump to the hydraulic cylinder and the tilt cylinder through the hydraulic line. When the valve is positioned at a second position, the oil pressure is supplied from the hydraulic pump only to the tilt cylinder through the hydraulic line.

Abstract: A hydraulic excavator includes an undercarriage having a crawler and a rotating superstructure. The rotating superstructure includes a plate-shaped rotating frame, an engine, a fuel tank a counterweight and a fuel line. The engine is mounted inside the rotating frame. The fuel tank is disposed on one side of the engine. The counterweight is supported on the rotating frame to the rear of the engine, and disposed so that a bottom end portion faces a rear end surface of the rotating frame with a gap interposed therebetween and the gap is open to the atmosphere. The fuel line is connected to the fuel tank and disposed in the gap between the rear end surface of the rotating frame and the bottom end portion of the counterweight.

Abstract: A construction machine that permits an exhaust gas after-treatment device to be disposed while avoiding an increase of height and hence avoiding narrowing of an operator's visual field. A guard panel is disposed substantially in parallel with a base frame. The guard panel includes a top plate, the top plate including an opening formed at a portion thereof corresponding to an engine, and a bonnet formed so as to project upwards from the top plate and cover the opening. A first treatment section is disposed lower than the top plate and a second treatment section includes at least a portion positioned higher than the top plate through the opening and lower than the bonnet.

Abstract: A transfer box for transferring movements and forces from a gearshift lever of a tiltable vehicle cab portion to a gearbox includes a first frame portion mounted on the cab portion, the first frame portion including at least one first journalled lever portion and being connectable to cable ends or push rods connected to the gear shift lever, a second frame portion mounted on a vehicle chassis, the second frame portion including at least one journalled second lever portion and being connected to the gearbox via cable ends or pushrods, wherein the first lever portions and the second lever portions interact to enable movement/force transfer from the cable ends/push rods connected to the first lever portions to the cable ends/push rods connected to the second lever portions. The at least one first and the at least one second lever portions are provided with wedge shaped cooperating portions.

Abstract: A suspension for a cab base on the frame of a swather tractor includes four dampened springs at the four corners with three links each pivoted on one end of the frame and the other end on the base. The links include two parallel links in the fore and aft direction parallel to the mechanical speed control link arm and one side to side link which constrain movement of the base against fore and aft movement and side to side movement parallel to the mechanical steering control link arm. This arrangement restricts movement of the base while allowing roll and pitch movements of the cab structure with the links arranged such that steering and ground speed are substantially unaffected when the cab moves on the suspension.

Abstract: A powered omni-directional aircraft galley servicing vehicle that includes a circular frame and two drive wheels capable of independent powered forward and rearward rotation about a horizontal axis. The drive wheels are adapted to allow the vehicle to spin in place about a vertical axis which intersects the horizontal axis midway between the drive wheels and which is generally centered in the circular frame. A carrousel cabin is mounted to the frame on a lift such that it is capable of elevation to an aircraft galley. A partitioned lazy susan storage compartment rotates on the carrousel cabin to facilitate transfer of aircraft food and drink carts between an aircraft galley and the servicing vehicle.

Abstract: Handrail mounts are provided in a bottom portion of a cast upper frame, and lower ends of side supports of a handrail are attached to the above handrail mounts. A base plate for attaching a floor plate is hanged and fixed between the side supports at a higher position than the attachment position, and a front end part of the floor plate is attached to the above base plate.

Abstract: The present invention is provided with a pair of vertical plates disposed on a rotating frame, a fuel tank and a working oil tank aligned on the rotating frame in the front-back direction, hydraulic pipes for coupling a control valve provided in the working oil tank and a working actuator, and a retaining tool for retaining the hydraulic pipes between the control valve and the actuator, and the hydraulic pipes are arranged from the control valve to the retaining tool through a clearance formed between the fuel tank and the working oil tank.

Abstract: In a coaxial two-wheeled vehicle, an attitude controller (84) calculates motor torque Tgyr for maintaining a base so that it has a target angle from deviation between base angle command ?ref serving as attitude command and current base angle ?0 calculated by using a gyro sensor (13) and an acceleration sensor (14). On the other hand, at a position proportional controller (86R), a differentiator (88R) and a velocity proportional controller (89R), there is performed PD control with respect to deviation between rotation position command Prefr of a motor rotor (92R) for right wheel and current rotation position ?r of a motor rotor (92R). A current control amplifier (91R) generates motor current on the basis of added value of motor torque which is the control result and estimated load torque T1 calculated by using pressure sensors to drive the motor rotor (92R).

Abstract: Construction machine in which an engine carrier is connected to a tool carrier via a joint to form an articulated running gear, the engine carrier having at least a first chassis axle and an engine for driving the construction machine and the tool carrier having at least a second chassis axle. The construction machine additionally has a driver's cab which is arranged between the engine and tool carrier and is attached, in accordance with the invention, displaceably to the tool carrier in such a way that it can be displaced along the longitudinal axis of the tool carrier and can thus be varied in its height position in such a way that it can be raised, for operating the construction machine, into a working position and lowered, for transporting the construction machine, into a transportation position.

Abstract: An agricultural machine for cutting standing products comprising a carrier vehicle to which there are connected at least one frontal working unit positioned, during work and when viewed in a direction of forward travel of the carrier vehicle, forward of said carrier vehicle, and at least two lateral working units positioned, during work, on each side of a working area of said frontal working unit(s) and situated behind said frontal working unit(s) and being connected to carrier arms which are articulated to the carrier vehicle and allow said lateral working units to be moved into at least one work position situated level with the front wheels of the carrier vehicle and into a folded transport position, and the carrier vehicle comprising a driver's cab that can be moved toward the front or toward the rear of said carrier vehicle.

Abstract: A machine having a body defining a body width and a ground engaging apparatus greater than one half of the body width and defining first and second working lines of the machine oriented perpendicular to and bounding the working width. An operator station is mounted on the body and movable across the body width between a first work monitoring position associated with the first working line and a second work monitoring position associated with the second working line. A compound linear actuator is provided to move the operator station between the first and second positions.

Abstract: A materials handling vehicle is provided comprising: a frame; a set of wheels supported on the frame to allow the materials handling vehicle to move across a floor surface; a rider compartment located within the frame for receiving an operator; and an operator support assembly. The operator support assembly comprises a suspended floorboard upon which the operator may stand when located within the rider compartment and an energy absorbing structure coupled to the frame and the suspended floorboard for absorbing and dissipating at least a portion of energy resulting from disturbances encountered by the vehicle as it moves across the floor surface prior to the energy portion reaching the operator standing on the suspended floorboard, the energy absorbing structure including a damping element for effecting a dampening function.

Abstract: A working machine is constituted so as to mount a guard cover hinge, a radiator duct, a canopy right support, a hood catch and the right end part of a seat stand on a radiator support. The working machine further comprises a mounting column provided on the opposite side of the radiator support so as to mount a hood hinge, a left side panel, the left end part of the seat stand and a muffler cover thereon. According to such a structure, a mounting member shared by a plurality of constituting members can be used also as a positioning support between members, and the workability in assembling can be improved.

Abstract: An improvement is realized in mutual assembly strength between a swing bearing member and right and left longitudinal ribs, and welds are subjected to a reduced stress concentration. A backhoe comprises a swivel deck (10); a first longitudinal rib (19L) disposed on the swivel deck, the first longitudinal rib extending in a fore and aft direction, and having a front portion (19La) extending in a transverse direction; a second longitudinal rib (19R) disposed on said swivel deck, the second longitudinal rib extending in the fore and aft direction, and having a front end thereof connected to the front portion of the first longitudinal rib; and a swing bearing member (20) attached to a front surface of the front portion of the first longitudinal rib for supporting a ground working implement through a swing shaft.

Abstract: A swivel work machine includes a traveling unit, a swivel base plate supported on the traveling unit to be pivotable about a vertical swivel axis, the swivel base plate having a first lateral side and a second lateral side provided across said vertical axis, a pair of upper and lower support brackets disposed at a front end of the swivel base plate with an offset toward the first lateral side and adapted for supporting an implement, a pair of left and right vertical ribs extending rearward from the support brackets and fixed to the swivel base plate and a cabin mounted on the swivel base plate. The cabin is disposed with an offset toward the second lateral side relative to the support brackets, a bottom of the cabin being disposed downwardly of the upper support bracket. The vertical rib disposed on the side of the second lateral side extends, from its front portion to its intermediate portion, parallel with a side face of the cabin on the side of the first lateral side.

Abstract: The present invention relates to a vehicle which can travel in the front and back direction and which can turn by right and left wheels rotated when a rider riding on a step-board moves the position of rider's balance from the center of a vehicle base.

Abstract: In the working machine of the present invention, a tank mounting portion is provided in an upper rotating body, a fuel tank is mounted removably in the tank mounting portion, and engaging portions are formed respectively on both body side of the working machine and the tank side so as to be engaged with each other when the tank is set in the tank mounting portion, thereby preventing in this engaged state the tank from moving in vertical directions and in substantially horizontal directions other than a removable direction of the tank, while a fuel tank dislodgment preventing means is provided to prevent movement in the removable direction of the tank when set in the tank mounting portion. In this working machine, the tank mounting structure can be reduced in both size and weight.

Abstract: An industrial truck, such as a reach truck, has a vehicle frame (1) and a driver's station with at least one floor plate and one driver's seat (6). The floor plate and the driver's seat (6) are suspended relative to the vehicle frame (1). The floor plate and the driver's seat (6) are fastened to an intermediate frame (8), which is mounted so that it can move relative to the vehicle frame (1). At least one suspension element (10) and/or at least one damping element (11) is provided that connects the intermediate frame (8) with the vehicle frame (1). The intermediate frame (8) can move relative to the vehicle frame (1) exclusively in the vertical direction.

Abstract: A swiveling utility machine includes a swivel deck, an engine disposed at a rear portion of the swivel deck, a radiator disposed adjacent the engine, a driver's seat, a right implement controller disposed on the right side of the driver's seat and a left implement controller disposed on the left side of the driver's seat. A support frame is disposed at a rear portion of the swivel deck in such a manner as to create a rectangular space inside the swivel deck, the engine being mounted within the rectangular space. The driver' seat is disposed upwardly of the support frame. The right implement controller is secured to a right side of the support frame, and the left implement controller is attached to a left side of the support frame to be switchable in its posture between an operational posture and a retracted posture. An access step is disposed at a front portion of the support frame, and an access entrance is provided on a left side of the access step.

Abstract: An operator station is for a compacting vehicle having a frame and at least one compacting drum connected with the frame. The station includes a base plate rotatably connected with the frame and an operator cab slidably connected with the base plate. The cab includes a housing bounding an interior chamber and an operator seat disposed within the chamber. A first actuator is configured to linearly displace the housing with respect to the base plate along a horizontal axis and a second actuator is configured to rotatably displace the base plate about a vertical axis. The cab is linearly displaceable along the horizontal axis between most proximal and most distal positions with respect to the vertical axis and the base plate is rotatably displaceable between a first position where a front wall faces toward a vehicle front and a second position where the front wall faces toward a vehicle side.

Abstract: A transportation vehicle for transporting an individual over ground having a surface that may be irregular. The vehicle has a support platform for supporting the subject and the support platform is coupled to a ground-contacting module at a pivot. While the ground-contacting module may be statically stable, balance of the support platform with respect to the ground-contacting module is maintained by motion of the ground-contacting module in response to leaning of the support platform. A motorized drive coupled to the ground-contacting module causes locomotion of the vehicle and the subject therewith over the surface, while a control loop, in which the motorized drive is included, dynamically enhances stability in the fore-aft plane by operation of the motorized drive in connection with the ground-contacting module. In the event of failure of the control loop, the pivot connection of the support platform to the ground-contacting module may be locked, thereby ensuring stability of the static assembly.

Abstract: A cabin structure for a working machine includes a substantially transparent cabin element equipped with a bottom part having a seat for the operator of the working machine, a display and a controller for controlling the operations of the working machine. The cabin structure also includes a control mechanism for tilting the cabin element in relation to the frame of the working machine in both XZ and YZ directions. The cabin element is arranged to be substantially stationary in relation to the frame of the working machine, and the seat and controller are placed on a working base placed above the bottom part of the cabin element. The control mechanism is pieced positioned between the working base and the bottom part of the cabin element. The control mechanism can also rotate the working base around the Z axis.

Abstract: A lift truck comprising a first portion having a carriage mounted on a carriage mast and one or more first wheels, and a second portion distinct from the first and comprising a cab mounted on a cab mast to enable the raising of the cab, and one or more second wheels, the first portion being pivotally mounted to the second portion, to permit the truck to be steered by adjusting the angle of the first portion relative to the second, wherein substantially all controls for controlling the functioning of the truck during depositing and pickup of goods are arranged so as to permit the raising thereof together with the cab.

Abstract: A transportation vehicle for transporting an individual over ground having a surface that may be irregular. The vehicle has a support platform for supporting the subject and the support platform is coupled to a ground-contacting module at a pivot. While the ground-contacting module may be statically stable, balance of the support platform with respect to the ground-contacting module is maintained by motion of the ground-contacting module in response to leaning of the support platform. A motorized drive coupled to the ground-contacting module causes locomotion of the vehicle and the subject therewith over the surface, while a control loop, in which the motorized drive is included, dynamically enhances stability in the fore-aft plane by operation of the motorized drive in connection with the ground-contacting module. In the event of failure of the control loop, the pivot connection of the support platform to the ground-contacting module may be locked, thereby ensuring stability of the static assembly.

Abstract: A revolving construction machine includes a lower track structure, an upper revolving structure mounted on the lower track structure and a working device mounted to the front of the upper revolving structure. A floor panel portion is provided on the upper revolving structure. A walk-through passageway is defined by a left-hand floor panel portion, a left side portion of a cabin cover and a left-hand cover of an engine cover for allowing a person to walk through the construction machine in the front and rear directions by passing the left side of an operator's seat, the cabin cover and the engine cover.

Abstract: A multiple-axle steering system for an agricultural machine with at least one primary-controlled axle and at least one secondary axle, where the latter's steering deflection angle varies along a progressive characteristic curve as a function of the primary-controlled axle's steering deflection angle. The variation in steering deflection angle along the progressive characteristic curve means that the steering deflection angle of the primary-controlled axle in a range around the zero or neutral position initially results in only a slight steering deflection of the secondary axle. As the steering deflection of the primary-controlled axle increases, the steering deflection angle of the secondary axle progressively approaches the steering deflection angle of the primary-controlled axle. When using all-wheel steering, the use of the progressive characteristic curve facilitates smooth steering when driving on the road, where usually minimal steering deflection is performed by the machine operator.

Abstract: A work transfer lock system and method includes a first work device, a second work device, a first platform, and a second platform. The system includes a locking device which locks the first platform relative to the second platform. The locking device further includes work transferring mechanisms which transfer work from the first work device to the second work device when the first platform is locked relative to the second platform.

Abstract: An agricultural tractor having a central structure which includes a rotatable cab and a platform on which an engine is slideably mounted and the location of which is hydraulically controlled.

Abstract: A carrier vehicle having a swing table supported on an under-carriage so as to swing a full turn, and a planetary reduction gear for reducing the revolution of a drive motor and transmitting it to the swing table. The planetary reduction gear is mounted on the under-carriage under the swing table.

Abstract: A hydraulic excavator includes a revolving upper structure having a rear half swingable within the width of the machine. The revolving upper structure has a front portion on which a cab is disposed. An internal combustion engine is mounted in the rear of the cab. Various components including a direction control valve, a hydraulic oil tank, and a fuel tank are mounted alongside the cab. The revolving upper structure has a front end portion supporting thereon a bracket, and a boom pivotally mounted on the bracket for undertaking a swing motion within an angular range of an angle less than 180.degree.. The swing angle is so set as to extend over a greater extent on one side located close to the cab than on the other side remote from the cab. The revolving upper structure further includes a projecting portion swelling out into an area kept out of the swing range of the boom.

Abstract: A portable mineral processing machine has a chassis, a mineral processing device mounted on the chassis, and a control cab support mechanism operative to vertically raise the control cab from a lowered in pit transport position in which it is supported on the chassis to a raised operative position in which it is supported on the ground and elevated to a designated height above the chassis. The control cab support mechanism preferably comprises a scissor lift mechanism including upper and lower scissor mechanisms which are independently operated by respective upper and lower double-acting hydraulic cylinders or the like. The upper scissor mechanism is operative to raise an upper platform with respect to an intermediate support platform, and the lower scissor mechanism is operative to first lower a lower platform with respect to the intermediate support platform, and then to raise the intermediate support platform, upper scissor mechanism, and upper platform with respect to the lower platform.

Abstract: A crane vehicle which reaches a minimum traveling speed of 62 km/h on public roads and gives the vehicle driver a range of vision with a radius of not more than 12 m comprises a vehicle frame which is substantially lowered to the level of the centers of the vehicle wheels, with at least part of the vehicle wheels being provided with hydrostatic individual wheel drives that are respectively arranged in the area of the wheel hubs. Furthermore, the crane vehicle comprises motor means for travel operation and crane operation, with said motor means being supported above the vehicle frame in a turntable which is supported on the vehicle frame in a horizontally pivotable manner. When viewed in the direction of travel, a driver's cab is mounted upstream of the motor means on the turntable, and a split longitudinal spindle which is mechanically lockable with the steering means for the vehicle wheels for travel operation is provided in the area of the driver's cab.

Abstract: Apparatus, for the remote control of a carrier vehicle from the cab of an excavator which is rotatably mounted upon the back bed of the carrier vehicle through a center pin assembly, is accomplished with a hydrostatic pump operably connected to the crankshaft of the carrier engine. Electric controls in the excavator cab connect to the pump which selectively directs fluid to a motor which rotates a first gear which meshes with a second gear fixed to the carrier vehicle drive shaft. In alternate embodiments, the motor connects to a power take-off on the transmission. Carrier steering, braking, and throttle functions are also remotely controlled at the excavator cab through a combination of electric and hydraulic controls with the electric wires extending from the electric controls in the excavator cab, through a slip ring on the center pin assembly and to the respective function controls at various sites on the carrier vehicle.

Abstract: An operator control console and motion/speed linkage assembly for a bidirectional vehicle is provided. The operator console includes a platform, an operator seat attached to the platform and integral control and steering units. The operator console is mounted for rotational movement around a bearing ring. An interface link in the linkage assembly includes a rotatable sleeve supporting a pin attached to a throttle cable which actuates the reversible valve of the hydrostatic drive of the vehicle. When the control lever is in the neutral position, the pin and supporting sleeve extend along the rotational or pivot axis of the console. The rotatable sleeve swings about an axis substantially perpendicular to the rotational axis, acting to operate the throttle cable which in turn actuates the hydrostatic drive of the vehicle. When the platform is rotated to switch the direction of vehicle movement, the rotatable sleeve freely pivots around the pin to provide proper operator orientation and throttle operation.

Abstract: A mounting arrangement which facilitates the positioning of an operator's station on the frame of a work vehicle at a plurality of elevationally spaced apart positions relative to a longitudinal axis of the work vehicle and permits control of the operation of the work vehicle from each of the first and second positions is provided. The mounting arrangement includes first and second elevationally spaced apart frames for supporting the operator's station at the first and second spaced apart locations, respectively. A connecting device connects the operator's station to the first and second frames. A controllable component which is mounted on the vehicle frame is adapted to vary operation of a function of the vehicle. The controllable component is connected to a selecting device mounted on the operator's station by a directing device which passes a control signal from the selecting device to the controllable component. The mounting arrangement is particularly suited for use on a material handling vehicle.

Abstract: An implement supporting vehicle comprises an elongate implement support frame, along one side of which two drive units which propel the vehicle are mounted equidistance from the center of the vehicle. Two castor wheels are mounted along the other side of the frame. The drive units are moveable between a first working direction in which the vehicle can be propelled in a first direction transverse to the longitudinal extent of the frame and a second transport direction in which the vehicle can be propelled in a direction substantially perpendicular to the first direction. A moveable operators cabin is mounted with the frame.

Abstract: A self-loading and unloading truck trailer rig assembly wherein the cargo truck driver's cab comprises a split configuration mounted at one end of its chassis and a forklift mounted at the other end of the chassis. The mast of the forklift is pivotally mounted to the other end of the chassis and is arranged to lie on top of the chassis longitudinally thereof when the cargo truck is in transit on the highway and is movable to extend laterally of the chassis at its other end when the cargo truck is disconnected from its trailer and is serving as a forklift. When the cargo truck operates as a forklift, a part of its driver's cab is rotated 180 degrees to the rear of the chassis for operator control of the movement of the forklift and cargo truck.

Abstract: A vehicle for use in transporting goods having a specific wheel mounting arrangement on the chassis. A first wheel carrying beam is provided on one side of the chassis, fixed to the chassis and carrying a wheel at each end. A second wheel carrying beam is provided on the other side of the chassis, pivotably mounted at about its center to the chassis and carrying a wheel at each end. Thus the vehicle is provided with a fixed wheel mounting on one side and a bogie wheel mounting on the other side.

Abstract: A vehicle particularly suited for loading and transporting elongated articles such as trees. The vehicle has a chassis with one pair of wheels on one side of the chassis and another pair of wheels on the other side of the chassis. A cab and a power supply are mounted from the chassis over the one pair of wheels. A grapple is mounted at about the center of the vehicle and movable sideways over the other side of the chassis to pick up a bundle of trees alongside the vehicle. The grapple picks up the bundle at about its center of gravity and moves the bundle over the chassis between the wheels to transport the trees. The first pair of wheels is fixed to the chassis via a first beam while the second pair of wheels is mounted on a second beam which is pivotally mounted to the chassis.

Abstract: A multiple-purpose agricultural machine, particularly a tractor, has a chassis, supporting elements associated with the chassis, a driver's cabin movable relative to the chassis between at least two working positions spaced from one another and detachably mounted on the supporting elements so that it can be detached from the supporting elements for movement between the working positions, and mounting elements for detachably mounting the driver's cabin on the supporting elements. The supporting elements may be formed as two receiving elements fixedly mounted on the machine and arranged to be alternately coupled with the driver's cabin, or has elements provided on an implement which is connected with the tractor.

Abstract: A self-propelled multiple-purpose agricultural machine, particularly a tractor, has a chassis, a driver's cabin movable relative to the chassis between at least two working positions and lowerable relative to the chassis to a third low position, at least one machine axle connected with the chassis and located at a predetermined height above a ground level, auxiliary frame connected with the machine axle and supporting the driver's cabin so that its supporting plane is located substantially at the height of the machine axle, and a plurality of control elements extending from the driver's cabin and formed of such a type and with such a length that the connection of the control elements with respective parts of the machine is guaranteed and does not need to be interrupted even when the driver's cabin is lowered to the third low position onto the auxiliary frame.

Abstract: The self-propelled load carrying vehicle includes a vehicle framework supported by road wheels, and railroad wheels are mounted on the framework and are movable up and down with respect to the framework for supporting the vehicle from the railroad track. The rear road wheels propel the vehicle along the track. A sub-frame is rotatably mounted on the vehicle framework about an upwardly extending axis, and dump body is pivotally mounted on the sub-frame about an approximately horizontal axis. A conveyor is mounted to the rear end of the sub-frame and rotates with the sub-frame and dump body and receives the load from the dump body when the dump body is tilted and progressively urges the load on beyond the rear opening of the dump body.

Abstract: A tractor having a subframe (10) to which a telescoping arm (13) is vertically and horizontally pivoted, and the driver's cab (14) is connectable to the arm (13) to permit being placed in any desired position. The telescoping arm (13) is extensible from a length smaller than that of the subframe (10) to a length considerably in excess of that of the subframe (10), whereby the cab can be mounted on the subframe as well as in different locations about and above the subframe (10), say behind an implement (22) towed by the tractor. The drive unit (12) of the tractor is readily detachably connected to the subframe (10).

Abstract: A dual steering system for use on a material handling vehicle having a chassis with front steerable wheels and an upperstructure movably supported from the chassis for rotary movement about a connecting center pin. The vehicle has a main truck cab on the chassis, from which the vehicle may be driven over road to a selected site, and an operator cab on the upperstructure from which the excavator vehicle may be operated and also driven for short distances. When the vehicle is driven over road, the vehicle is steered from a steering wheel in the main truck cab, and hydraulic power is provided by a hydraulic power supply mounted on the chassis. When the excavator is controlled from the operator cab, the vehicle is steered with a joy stick and hydraulic power is supplied from an alternate hydraulic supply on the upperstructure. Thus, two alternate but interconnected sources of hydraulic fluid are utilized to provide power to a hydraulically powered, mechanically controlled steering gear.