Abstract: A material-handling vehicle comprising a structure having a ground engageable propulsion device, a loader arm, having a longitudinal axis, mounted at the rear of the structure for up and down swinging movement, an operator's cab disposed on the structure on one side of the loader arm longitudinal axis and an engine mounted on the structure to provide power for the swinging movement of the arm and propulsion of the vehicle, wherein the engine is located on one side of the loader arm longitudinal axis and the engine has an output shaft and the engine is transversely disposed with its output shaft transverse to the vehicle.

Abstract: A manipulator system includes an elongated mast having a mast axis and a telescoping tube assembly having a tube axis. The telescoping tube assembly includes an outer tube section and at least one inner tube section that only moves telescopically with respect to the outer tube section. The telescoping tube assembly is joined to an end of the elongated mast for only pivotal movement. An actuator joined to the elongated mast and the outer tube section pivots the telescoping tube assembly from a first position, wherein the tube axis is parallel to the mast axis and the telescoping tube assembly is retracted, to a second position, wherein the tube axis is perpendicular to the mast axis and the inner tube section is deployable. An end effector is joined to a remote end of the inner tube section to perform work within the tank.

Abstract: An articulated telescopic boom assembly for a lifting device includes a first elongated boom having a central longitudinal axis and an opening in one end; a second elongated boom having a first end normally telescopically received by and extensible from the first boom opening, the first end having at least one elongated pivot guide slot therein having a central longitudinal axis with an open end remote from the first end and a closed end proximate to the first end; and a slide-through knuckle having a housing with an opening therein for receiving the second boom during extension and retraction thereof. The housing is pivotally connected to the first boom by a pair of opposing elongated pins which define a pivot axis. The central longitudinal axis of the pivot guide slot is offset from and perpendicular to the pivot axis such that when the closed end of the guide slot is registered with the pivot pins, the second boom is pivotable.

Abstract: Disclosed herein is a miniature, portable, self-contained power machine for handling materials, comprising, a rigid frame providing the base structure for all components of said machine, a means of electrical power supply for said machine, means for regulating the motion of said machine, two endless roller chains forming a traction system and serving as the means to move said machine over various types of terrain, means for readily receiving and rigidly securing a variety of miniature, hydraulically powered material handling implements to said machine, and a central hydraulic system which is powered by said power supply means and which supplies power to said attachable material handling implements. The machine has a diversity of applications in numerous industries. The machine accepts any of a variety of attachable implements through an assembly socket and a torque arm socket, and then links the implement to the central hydraulic system with hydraulic hoses leading to a hydraulic power manifold.

Abstract: An oil supply mechanism in a deep excavator comprising a chassis, a turntable disposed on the chassis, a boom which is pivotally supported on the turntable and is vertically swingable, a stretchable arm arrangement which is stretchable in the longitudinal direction and comprises base, middle arm and top arms, and buckets which are attached to the top arm for excavating and holding earth or sand. The oil supply mechanism includes an oil supply unit provided in the middle arm, and first and second hollow oil supply pipes are airtightly slidable in the oil supply unit and move outwardly from the oil supply unit in opposite direction. The outer end of the first oil supply pipe is coupled with the base arm, and the outer ends of the second oil supply pipe is coupled with the top arm.

Abstract: An improved railroad car loader/unloader apparatus includes a backhoe-type machine adapted to operate atop an open top railroad car. The apparatus includes front and rear support feet and a center support beam to which are pivotally attached a pair of center support feet, one to either end of the center support beam with each of the feet contacting an upper surface of the sidewalls of the railroad car. Each center support foot is pivotable through a horizontal plane between extended support position and a retracted, stored position. In one alternative version, double action hydraulic piston and cylinder units are provided to selectively extend and retract the center support feet.

Abstract: A work machine includes a boom which is pivotally connected at one end to the machine and is provided at the other end with a tool carriage which is attached to the boom at a pivot which is fixed with respect to the boom. The tool carriage is associated with a mechanism for maintaining it at a constant attitude when the boom is raised and lowered. The boom further includes an extension for improving the versatility of the machine.

Abstract: An improved boom (24) for a sliding boom delimber (10) is disclosed formed from a prestressed, conventional I beam (28). A first segment of a cable bundle (70) extends from the grapple head (36) and is secured adjacent the lower flange (32) of the I beam (28). The second segment of the cable bundle (70) is inside and carried by an energy chain (74) and includes first and second, inversely related, linear portions interconnected by a third, C-shaped portion. A sag plate (60) is coextensive with the first segment and located on the opposite side of the first segment than the lower flange (32) for preventing the first portion from sagging and engaging the first segment. Sides (50, 52) extend from the outer edges of the I beam flanges (30, 32) for partially enclosing the energy chain (74).

Abstract: An improved railroad car loader/unloader apparatus includes a backhoe-type machine adapted to operate atop an open top railroad car. The apparatus includes front and rear support feet and a removable center support beam to which are pivotally attached a pair of center support feet, one to either end of the center support beam with each of the feet contacting an upper surface of the sidewalls of the railroad car. Each center support foot is pivotable through a horizontal plane between extended support position and a retracted, stored position. Alternative versions of the center and front support feet include support rollers for enhanced movement. A movable front bucket support stop block enhances the conversion of the apparatus between railroad car loading/unloading operations and other uses.

Abstract: A side loader for picking up curbside refuse containers includes a hydraulic telescopic boom located adjacent a top open refuse compartment of a vehicle. The boom is adapted for inward/outward movement transverse to the forward/rearward axis of the vehicle. A mast is connected via a hydraulic powered helical rotary actuator for pivotal movement of its lower end inward and outward. A similar rotary actuator is used to operate the grabber arm assembly.

Abstract: A material handling vehicle comprising a top, bottom, two sides, and two ends, the vehicle having a central axis of extension extending from end to end thereof, the vehicle having a frame disposed therewith the frame having disposed proximate the bottom thereof at least a first and second axle upon which are disposed wheels for engaging terrain being traversed, the bottom of the axles defining a first plane, the frame being disposed above the first plane, the frame having disposed proximate one side thereof and to one side of the central axis of the vehicle a cab wherein an operator having a line of sight is located in use, the frame having disposed on the other side thereof and on the opposite side of the central axis of the vehicle whereat the cab is disposed, driving structure, the driving structure having a bottom, the bottom of the driving structure being disposed on top of the frame and being disposed in a plane above the first plane of the vehicle, and the top of the driving structure being disposed be

Abstract: A power shovel comprising a frame, a winch mounted on the frame, a boom having a lower end mounted on the frame and having an upper end, a sheave pivotally mounted on the boom adjacent the upper end of the boom, a dipper handle mounted on the boom for pivotal movement relative thereto and relative to a dumping position, a dipper mounted on the forward end of the dipper handle and having closed and open conditions for respectively containing and dumping a load and further including a latch mechanism for releasably securing the dipper in the closed condition, and a hoist rope extending over the sheave and having one end connected to the winch and an opposite end connected to the dipper such that when the dipper handle is in the dumping position the hoist rope exerts on the dipper a force biasing the dipper to the open condition when the latch mechanism is released.

Abstract: Disclosed herein is a miniature, portable, self-contained power machine for handling materials, comprising, a rigid frame providing the base structure for all components of said machine, a means of electrical power supply for said machine, means for regulating the motion of said machine, two endless belts forming a belt traction system and serving as the means to move said machine over various types of terrain, means for readily receiving and rigidly securing a variety of miniature, hydraulically powered material handling implements to said machine, and a central hydraulic system which is powered by said power supply means and which supplies power to said attachable material handling implements. The machine has a diversity of applications in numerous industries. The machine accepts any of a variety of attachable implements through an assembly socket and a torque arm socket, and then links the implement to the central hydraulic system with hydraulic hoses leading to a hydraulic power manifold.

Abstract: An excavation controlling apparatus which can effect precise driving control off a dipper in accordance with an actual operation condition with a simple structure of a low cost. A dipper handle extension instruction calculation section calculates a dipper handle extension instruction signal from a difference between a moment upper limit value set by a moment limit value setting section and a working moment calculated by a working moment calculation section, and causes a dipper handle driving motor output controlling apparatus to control a sliding driving operation of a dipper handle in accordance with the dipper handle extension instruction signal. A hoisting operation instruction calculation section corrects a hoisting operation reference instruction set by a hoisting operation reference instruction setting section with the moment upper limit value and a hoisting operation instruction correction amount calculated from the working moment.

Abstract: A mechanism (22) for supporting an earthworking tool from a vehicle such as a front end-loader (21) includes: (i) a primary support structure (23) adapted to be pivotally attached, in a readily releasable manner, about a generally upright, slewing axis (24), to a conventionally-provided elevating linkage mechanism (25) of a vehicle; (ii) power driver (26,27) to effect controlled slewing of the primary support structure (23) about its slewing axis (24); (iii) a secondary support structure (28) rotatably mounted about a generally forwardly directed axis (29) on the primary support structure (23); (iv) power driver (30) to effect controlled rotation of the secondary support structure with respect to the primary support structure; (v) tool support (32) pivotally mounted on the secondary support structure (28); and (vi) driver (33) to pivot the tool support with respect to the secondary support structure.

Abstract: A cylinder and piston rod guard attachment for a backhoe or the like. The cylinder and piston rod guard is arranged to extend over the cylinder housing and the associated piston rod as it extends therefrom to protect the extended piston rod. A U-shaped inverted channel sleeve configuration extends from the attached end of the piston rod and is supported in sliding spaced relation above the cylinder housing by support tracks secured to the cylinder housing. As the rod advances out of the cylinder housing, the cylinder guard extends therewith protecting same.

Abstract: A deep excavator comprising a stretchable arm arrangement having four telescopically assembled alms which are simultaneously extended and contracted for excavating earth or sand to form a deep hole. The stretchable arm arrangement houses therein a working unit comprising a pair of hydraulic cylinders which are arranged in parallel with each other while the cylinder rods thereof are disposed to operate in opposite directions and the hydraulic cylinder housings are assembled so as to relatively slide. The cylinder rods and the cylinder housings are individually coupled each to a respective arm whereby the arms are interlocked with the hydraulic cylinders so as to be extended simultaneously with the hydraulic cylinders when both of the hydraulic cylinders are extended.

Abstract: An automatic container loading device connected to an appropriate truck comprises a first telescopic arm connected to the chassis of the truck and able to rotate, both on a horizontal and on a vertical plane, a second telescopic arm centrally connected to the free end of the first arm and able to make a complete rotation on its vertical axis and comprising a third arm and a fourth arm, also able to make a complete rotation. The third and fourth arms support a mechanism for gripping containers of all shapes and sizes form any position whatsoever, even at a considerable distance from the truck and on a different level, placing them automatically in the right position for being lifted and emptied into the body of the truck.

Abstract: An excavator comprising a movable body, a boom mounted on the movable body, first hydraulic cylinders, an outer arm pivotally mounted on the boom, a second hydraulic cylinder mounted on a rear surface of the boom, an inner arm inserted into the outer arm and movable telescopically relative to the outer arm, a bucket connected to one end of the inner arm, a bucket connected to the tip end of the inner arm, a bucket cylinder provided between the bucket and a guide mechanism, the guide mechanism being slidably mounted on guide plates fixed to the outer arm, a third hydraulic cylinder connected to a base end of the outer arm and having a rod connected to a central portion of the inner arm for moving the inner arm relative to the outer arm, and an interlocking device connected between the guide mechanism and the front portion of the inner arm. A hook mechanism can be mounted at a front portion of the inner arm.

Abstract: A mobile lifting apparatus having an extendable boom assembly supported by a plurality of hydraulic cylinders extending upwardly from a wheeled chassis, and further having a fork attachment coupled to the extendable boom assembly. The fork attachment is configured to engage palletized loads and permits such loads to be raised and transported upon extension of the hydraulic cylinders. The fork attachment includes a buttress assembly that remains relatively stationary as the boom assembly is horizontally extended and retracted. The fork assembly further includes a pair of forks that are pivotal relative to the buttress assembly around a generally horizontal axis. The forks are coupled to the horizontally extendable portion of the boom assembly so that extension and retraction of the boom pivots the forks to change the angular orientation of the forks relative to horizontal. Such angular movement of the forks facilitates engagement and disengagement of the forks with the palletized load.

Abstract: A modular, readily assembled crane for mounting on a vehicle trailer hitch drawbar and reconfigurable for stand alone, rollabout operation. A receptacle rotatably supports a vertical column, boom arm, and lifting device, which may be a hydraulic jack or a winch. The receptacle has a lateral projection cooperating with the drawbar and two lateral projections to engage outriggers to steady the device and to support weight. The outriggers may be omitted. The same three projections, when reconfiguring the crane to rollabout operation, cooperate with a readily built up frame riding just above a floor, supported on casters. Rollabout frame length, boom arm angle, boom arm length, and outrigger height are adjustable. A non-lubricated PTFE washer serves as a rotating bearing. Optional parts include a receiving unit mountable to a vehicle in the absence of a trailer hitch, and a similar unit mountable to a wall surface.

Abstract: In a lifting truck of the type comprising a wheeled structure carrying a lifting arm articulated to the rear of the structure and a cab situated on one side of the structure at one side of the longitudinal axis of the structure, the internal combustion engine which propels the truck and operates the arm is disposed in a housing which is situated on the opposite side of the longitudinal axis to the cab and is spaced from the cab so as to form therewith a space at least as wide as the lifting arm. The arm is articulated to the structure of the truck in such a position that, in its completely lowered position, it is partly housed in the space so as not to interfere with the view of the operator working in the driving cab.

Abstract: The invention concerns a lift truck with telescopic hoisting arm (2) mounted on a chassis carrying a front axle and a rear axle, in which the telescopic arm is articulated on the truck by means of a variable quadrilateral (A, B, C, D) having a tie rod (23) and an auxiliary arm (24), characterized in that:the tie rod (23) is articulated on the one hand to the chassis (1) at a point (D) situated substantially above the front axle (10) and on the other hand to the telescopic arm (2) at a point (A) which, in low position of the arm, is substantially above the rear axle (11),the auxiliary arm (24) is articulated on the one hand to the chassis (1) of the truck substantially at the geometric center (C) of the chassis and on the other hand to the telescopic arm (2) at a point (B) situated in back of point (A),and in that, in low position, the telescopic arm (2) is entirely situated below points (A) and (B) of the quadrilateral and rests on the auxiliary arm (24) in a practially horizontal position whereas in high pos

Abstract: An excavator comprising a movable body, a boom mounted on the movable body, first hydraulic cylinders, an outer arm pivotally mounted on the boom, a second hydraulic cylinder mounted on a rear surface of the boom, an inner arm inserted into the outer arm and movable telescopically relative to the outer arm, a bucket connected to one end of the inner arm, a bucket connected to the tip end of the inner arm, a bucket cylinder provided between the bucket and a guide mechanism, the guide mechanism being slidably mounted on guide plates fixed to the outer arm, a third hydraulic cylinder connected to a base end of the outer arm and having a rod connected to a central portion of the inner arm for moving the inner arm relative to the outer arm, and a synchronizing device for moving the base end of the outer arm for a length corresponding to the distance the inner arm moves relative to the outer arm. A hook mechanism can be mounted at a front portion of the inner arm.

Abstract: A front hoe attachment for a loader includes a connecting frame which is capable of being attached to the manipulating mechanism at the front end of a loader such as a tractor. The connecting frame has a bucket secured to its outer end so that the bucket can be manipulated by use of the loader to perform various operations such as digging operations.

Abstract: An extendable boom fork lift vehicle is described wherein the boom and its actuator are positioned over the rear axle of the vehicle such that the weight of the frame between the front and rear axles and behind the rear axle may be reduced. A modified boom and jib are also described wherein the jib may be selectively fixed relative one telescoping member of the boom. A light-duty carriage is provided to operably engage and articulate a secondary heavy-duty carriage.

Abstract: A device for removing material from the free surface of a contained body of liquid comprises a scoop supported from a fixed member by two links that carry a substantially horizontal arm on which the scoop is mounted so as to be rotatable about the axis of the arm. The connections of the links to the fixed member and to the arm are pivotal connections at the four corners of a quadrilateral. First actuating means pivots the link about its connection to the fixed member thereby to move the arm to and fro substantially in a horizontal plane. Second actuating means rotates the scoop about the axis of the arm.

Abstract: A load balancing mechanism (10) disclosed includes an arm (12) including first and second arm portions (14,26). A support post (22) is rotatable about its vertical axis A and supports arm (12) by first arm portion (14) for pivotal movement in a vertical plane and also for rotational movement about axis A. First arm portion (14) includes parallel spaced members (16,16') defining a parallel linkage arrangement. A piston and cylinder balancing arrangement (38) connects post (22) and first arm portion (14) allowing upward and downward pivotal movement of arm (12) and is responsive to such upward and downward pivotal movement to provide balancing of a load thereon. The second arm portion (26) can be longitudinally moved relative to a second mount (32) to increase or decrease the length of arm (12) without having to change the force applied via balancing arrangement (38) to maintain balancing of the load.

Abstract: The arm includes a supporting member and a plurality of telescoping members located therein and having a subsequently decreasing diameter. The supporting member and the telescoping members are interconnected by means of at least one kinematic train which is formed by endlessly guided pulling members. These pulling members, preferably steel belts, interconnect three respective adjoining telescoping members. The belts are mounted to the respective outer two telescoping members and guided for return at the upper and bottom area of the center member. When displacing the telescoping member having the largest diameter relative to the supporting member any further telescoping member is displaced relative to its outer adjoining member by a corresponding distance. This design leads to a rigid smoothly operating telescoping arm having a small structural height.

Abstract: Excavating apparatus of limited mobility adapted primarily for indoor use on brick or cement floors and having a body adapted to make substantially planar contact with the floor. The apparatus is stabilized by at least one pair of legs having respective retractile feet spaced from the body and respective, substantially planar pads connected to the free ends of the feet. The legs are also pivotally attached at an inner end remote from the pads to respective sides of the apparatus for lateral rotation towards and away from each other so as to vary the distance separating the feet.

Abstract: A stabilizer system for a utility vehicle that includes a stabilizer unit having a hydraulically-actuated piston cylinder, a leg connected to an end of the piston and carried within a protective sleeve, a ground engaging pad, and a hydraulic actuating and control means by which the leg and pad may be extended and retracted within the dimensional profile of the vehicle. In the retracted position, the leg and pad are carried above the undercarriage clearance space of the vehicle. Advantageously, a utility vehicle equipped with the system may be moved into and operated stably in terrain providing limited sidewall and undercarriage clearance space and having highly hetereogeneous and non-supportive soil conditions.

Abstract: An earthmoving attachment to be mounted on the front end of a tractor. The attachment includes a frame secured to the tractor, arms pivoted to the frame and extending forwardly and mounting a combination bucket and blade. Hydraulic cylinders individually extend telescoping sections in the arms to effect a skewing of the blade. Another hydraulic cylinder mounting a slider adjacent one end of the blade is operable to tilt the blade or bucket. Other sets of hydraulic cylinders tip the bucket and lift the arms conventionally. Simple adjustments are operable to convert the attachment from the configuration of a front-end-loader to that of a dozer, and to skew, tilt and tip the blade and bucket in various configurations.

Abstract: An extendable boom fork lift vehicle is disclosed wherein the bottom and its actuator are positioned over the rear axle of the vehicle such that the weight of the frame between the front and rear axles and behind the rear axle may be reduced. A modified boom and jib are also described wherein the jib may be selectively fixed relative one telescoping member of the boom. A light-duty carriage is provided to operably engage and articulate a secondary heavy-duty carriage.

Abstract: The present invention is concerned with a working machine in the form of a construction machine including booms 2 and a bucket 4 such as a wheel loader, a shovel loader or the like. When a scooping operation is performed by alternately repeating a tilting operation with the use of only a bucket operation lever 16 while a boom operation lever 15 is held at a boom kick-out position, a lifting operation for the booms 2 and a tilting operation for the bucket 4 while the boom operation lever 15 is shifted to a neutral position, a lift speed of the booms 2 is variably controlled to a speed corresponding to a tile speed of the bucket or an angle of the booms whereby the tilt speed is harmonized with the boom speed.

Abstract: A direction controlling mechanism for an extendible boom forklift or the like controls the direction of movement of a predetermined point, such as a fork section connected to the distal end of the boom sections, relative to the forklift frame during retraction or extension of the boom members. The direction controlling mechanism is disposed between the proximal end of the boom sections and the main frame section of the forklift. The direction controlling mechanism includes an extendible member disposed between an upper shaft provided on the boom sections and a lower shaft provided on the vehicle frame. The length of the extendible member can be fixed during retraction or extension of the booms, and a driving mechanism moves the fixed length extendible member along the upper and lower shafts.

Abstract: A forklift truck having a fork assembly connected to a telescopic auxiliary boom articulated to a telescopic main boom. The telescopic and articulating features of the auxiliary boom in conjunction with the telescopic feature of the main boom increases the range and reach of the fork assembly to above ground heights and to below ground depths.

Abstract: A variable reach rough terrain load lifting apparatus comprising a vehicle having a frame; a boom having innermost, intermediate and outermost telescoping boom segments; and means for pivotally connecting the outermost boom segment to the vehicle frame and capable of reciprocal longitudinal movement therewith. The outermost boom segment has first and second hydraulic cylinders mounted therein for extending and retracting the intermediate and innermost boom segments, respectively. The pivotal connection means facilitates pivotal movement of the boom with respect to the vehicle while preventing buildup of corrosion products which would interfere therewith and further to facilitate repair or replacement thereof due to normal operation. The innermost boom includes end effector means attached to the forward end thereof by means for quick connection and disconnection.

Abstract: A double telescoping horizontal arm, adapted for use in a robotic palletizer, including an outer member, an intermediate member and an inner member in telescoping relationship to one another. An idler wheel, mounted to the intermediate member, simultaneously engages both the outer member and the inner member so as to rotate in response to movement of the inner member relative to the intermediate member. Rotation of the idler wheel, in turn, drives the intermediate member in the same direction as the inner member thereby resulting in a double telescoping action.

Abstract: The invention relates to a load-handling vehicle fitted with load-handling forks in which the fork blades are slidably movable relatively to the carriage on which they are mounted from a load supporting extended position to a retracted position in which the blades will be disengaged from the load. The sliding motion of the fork blades is such that during a movement from the extended load supporting position to a retracted position, each fork blade slides through the carriage on which it is mounted. The sliding motion is preferably effected by a rack and pinion type mechanism driven by a hydraulic driving mechanism controlled from the vehicle.

Abstract: A rotatable, vertically positioned boom support attached to a flat-bed truck. The boom support is rotatable through the use of meshed gearing powered by a reversible hydraulic motor. The boom support pivotally retains a hydraulically repositionable boom. The boom is affixed to, and supports a vertically positionable digging arm with a telescopically attached hydraulically powered digging bucket. The digging arm is structured with two slidable sections allowing the digging arm with attached digging bucket to be extended for greater reach. The slidable sections of the digging arm are repositionable through the use of hydraulic rams. One hydraulic ram is used to raise and lower the digging arm relative to the boom. The other hydraulic ram is used to raise and lower the telescopically attached digging bucket. An operator's seat and hydraulic control levers are positioned adjacent the boom support.

Abstract: The present invention relates to a vehicle lifting and towing device and particularly to an improved low profile lifting and towing device capable of efficient placement of the lower lifting boom while providing added ballast against the tipping moment of the towing vehicle, as well as a column configuration permitting the upper boom to be generally horizontal providing improved driver vision from the cab of the towing vehicle.

Abstract: A parallel translation mechanism, when connected between a first element and a second element, maintains the relative direction between the two elements constant when one of those elements is moved relative to the other. The mechanism is in part formed by first and second rigid elongated members which are pivotally connected together and are pivotally connected by the end of the first elongated member to one of the elements. A first portion of an extendable member is connected between the one of the elements and the second elongated member, and a second portion is connected between the other element and the second elongated member. The other element is also pivotally connected to a position on the second elongated member. The three members of the mechanism are connected together in such a fashion that the described relative movement between the two elements is obtained. The mechanism has particular application to forklift vehicles.

Abstract: An earthmoving attachment to be mounted on the front end of a tractor. The attachment includes a frame secured to the tractor, arms pivoted to the frame and extending forwardly and mounting a combination bucket and blade. Hydraulic cylinders individually extend telescoping sections in the arms to effect a skewing of the blade. Another hydraulic cylinder mounting a slider adjacent one end of the blade is operable to tilt the blade or bucket. Other sets of hydraulic cylinders tip the bucket and lift the arms conventionally. Simple adjustments are operable to convert the attachment from the configuration of a front-end-loader to that of a dozer, and to skew, tilt and tip the blade and bucket in various configurations.

Abstract: A backhoe machine is disclosed wherein the entire articulated boom is mounted to a carriage for movement relative thereto about two normally generally horizontal pivot axes. The entire carriage is rotatable about a generally vertical axis to permit operation of the backhoe assembly laterally of the machine with the operator's station constantly facing the operation of the backhoe assembly. The first pivot axis for the articulated boom extends outwardly from the carriage and permits the entire boom to be canted relative to the carriage upon which it is mounted. The second pivot axis for the articulated boom is carried by a mounting frame and is rotatable about the first horizontal pivot axis to permit an extension of the articulated boom while being tilted relative to the carriage.

Abstract: A material handling vehicle is provided which is capable of operation on the highway, off-road and on railroad tracks. The vehicle includes a lower truck chassis having an engine and a first operator's cab and an upper structure which includes an upper structure operator's cab and a material handling implement. In the travel mode of operation, the engine is directly connected to the torque converter of a powershift transmission to provide a rotational output to the drive wheels. In the off-road or remote operating mode of the excavator, the transmission is controlled so as to prohibit the connection between the torque converter and the transmission gears. However, a power take-off on the transmission is coupled to a hydraulic pump which provides hydraulic fluid under pressure to a hydraulic motor which, in turn, may provide rotational power to a secondary input to the transmission to provide drive power.

Abstract: The invention relates to a safety device for a self-propelled earthmoving appliance having a hydraulic transmission with a reverser and at least one stabilizer which can serve as a support for the said appliance.According to the invention, the safety device comprises control means connecting the stabilizer control lever functionally to the valve means controlling the position of the reverser, the said control means being passive when the reverser is in the neutral position and active when the reverser is not in the neutral position, in order, in the latter case, to cause a return to the neutral position automatically. Consequently, the raising of the stabilizer or stabilizers can under no circumstances cause a movement of the machine if the control lever of the reverser is not in the neutral position.The invention is used for equipping appliances of the shovel-loader type having a pair of stabilizers mounted at the rear of the chassis.

Abstract: An improved forklift device for unloading palletized articles from the bed of a flatbed truck may be removably carried in "piggyback" fashion on the rear end of the truck. The device has a fork structure adapted to liftingly engage one of the pallets, a wheeled, ground-supportable frame, and an articulated linkage structure which interconnects the frame and the fork structure and is movable between a fully lowered and rearwardly retracted position and a fully raised and forwardly extended position. The forklife may be propelled along the ground by an engine-driven hydraulic drive system, and is also provided with a hydraulic actuating system for pivoting gantry and boom portions of the linkage, and pivoting the fork structure relative to the linkage. In unloading the articles the fork structure may be moved a substantial distance laterally across the truck bed to liftingly engage the pallet of an article on the far side of the bed.

Abstract: Apparatus for removing plastic sprue slugs from the mold of an injection molding machine including a housing, a swivel arm rotatably mounted in the housing about a horizontal axis, a gripping arm pivotally mounted to the outer end of the swivel arm and having fingers for gripping and removing the slug, a steering rod for pivotting the gripping arm about the swivel arm as the swivel arm rotates about its axis and a cam for controlling movement of the steering rod, the cam, upon rotation of the swivel arm from an upper waiting position to a lower gripping position, causing the fingers to first trace a circular path until they reach a level approximately level with the top of the mold and then a path that extends substantially vertically downward along the front side of the mold until they reach a protruding sprue slug.

Abstract: Extended-reach lift apparatus for remote accessing of low-clearance areas is provided. The apparatus includes a vehicle whose frame supports a vertically pivotable telescoping boom which is elevatable by means of hydraulic rams. An extended tilt head is provided on the free end of the boom which includes parallel upper and lower link members of equal length. A work implement support having a discrete work implement tilting cylinder is attached to the remote ends of the upper and lower links of the tilt head. A hydraulic cylinder extending between the boom and the lower link of the tilt head provides separate tiltability of the tilt head while the design of the tilt head mechanically assures the maintenance of the attitude of the work implement without requiring additional hydraulic compensation during such tilting.

Abstract: An assembly capable of being fitted to a loader which is provided with an attachment device intended, for example, for co-operation with respective one ends of two lifting arms whose respective other ends are intended to support suitable load-handling devices, such as forks, buckets etc., and lifting-ram attachments intended, for example, to co-operate with respective first ends of two lifting rams whose respective other ends are capable of co-operating with the lifting arms. The assembly is provided at the central region thereof with a device for co-operating with the attachment device, and is provided in the upper part thereof with a pivotal attachment for pivotal co-operation with a part of a load-handling arrangement. The lower part of the assembly is arranged to extend towards the front wheels of the loader, and the lower part of the assembly is firmly connected to the lifting-ram attachments originally found on the loader.