Abstract: The present disclosure is directed to an apparatus for removing or replacing ships underwater parts such as a screw from the propulsion shaft or the rudder of a ship in a dry dock and transporting it from the ship to a work area. It has a mobile vehicular frame and a pair of spaced apart main cylinder ram lifts pivoted at their base to the vehicular frame, one lying to each side of the ships part either screw or rudder to be removed. The part receiving and cradling apparatus is mounted at the upper ends of said main cylinder ram lifts. Auxiliary tilt cylinders and rams each having one end pivoted to said vehicular frame and the other end pivotally connected to tilt the main cylinder and ram lifts toward and away from the ships part to be removed from or replaced on the ship.

Abstract: An improved material handling apparatus boom cylinder structure. A hydraulic cylinder is provided inside an outer boom and an inner boom in order to provide a method for slidably moving the inner boom relative to the outer boom. Affixed to the hydraulic boom cylinder is a boom cylinder support adapted to engage the internal structure of the inner boom in order to provide support for the hydraulic cylinder.

Abstract: A truck vehicle carried boom system for lifting, transporting, and depositing a load of particulate material such as powder, granules or seeds into storage bins in material dispensing aircraft, including a telescoping boom structure pivotally mounted on support structure which in turn is rigidly secured to the vehicle frame. The boom includes provision for removable carrying a hopper form of load bag. An extensible piston-cylinder hydraulic motor is utilized to obtain various pivotal positions of the boom. The boom telescope disposition is maintained by a mechanical safety pin. The boom is extended and retracted by inertial forces generated by vehicle manipulation. As an auxiliary device a boom safety bar, hydraulically operated is secured to a side portion of the truck bumper structure to provide a safety block when the boom is in the aircraft loading position.

Abstract: The apparatus includes a mobile chassis having a turntable on which is supported a boom assembly. At the free end of the boom assembly is tiltably mounted a forklift carriage which can be extended and retracted relative to the boom assembly.

Abstract: A self propelled reaching type mobile loader includes a mobile vehicle which has an articulated body and frame and self leveling wheels. The front portion has a supporting frame with a cab enclosing the front end thereof and has a suitable motor means for operating the vehicle and loading components. A pair of pivot supports are laterally spaced on the frame adjacent the top of the cab and support a pair of pivoted supporting lever members each having a pair of arms rigidly extending at an angle to each other. One of the arms on each of the supporting lever members is supported for pivotal movement on the pivot supports and has an initial position extending along the top of the cab with the angularly extending arm extending substantially vertically in front of the cab. A pair of supporting boom members are supported on each of the angularly extending arms of the supporting lever members and movable longitudinally thereof. A load carrying carriage is supported on the lower ends of the boom members.

Abstract: An arrangement for keeping taut and untangled the hoses of the hydraulic system of the telescoping booms of a crane includes a wheel around which the hose is trained and a cable by which the hose can be stretched and pretensioned so that the resiliency of the hose itself maintains the conformity of the hose to the wheel.

Abstract: A vehicle for removing slash from steep logging slopes includes an anti-skid propulsion system characterized by a power winch for reeling in an uphill-anchored cable and a pair of crawler tracks driven in synchronization with the winch. The vehicle has an articulating tail boom for working against the cable to assist in maneuvering the vehicle along the slope and stabilizing the vehicle during slash gathering operations. A knuckle boom which is extendable from the vehicle for gathering slash within a relatively large area around the vehicle and preparing the soil for planting. A slide mechanism is disposed at the end of the knuckle boom for selectively varying the overall length of the boom. The slide mechanism includes a pair of claws which can be operated as a grapple for gathering slash or as a rake for scarifying the forest soil. The slide mechanism can be tilted for optimum orientation of the claws during raking.

Abstract: An automated assembly, maintenance, and repair system for the construction of a large space structure. The space structure comprises a plurality of trusses and truss junctions that in turn are made up of a plurality of individual struts and nodes. The truss assemblies are progressively built by an assembler trolley as the trolley crawls along the constructed truss. The trolley comprises a forward crawler and a rear crawler joined by an articulated coupler. The crawlers are carried along the structure by belt transports incorporating grippers that engage the truss structure at the nodes. Manipulator arms for strut and node assembly are located on the forward crawler, and the majority of control, power, and communication systems are located in the rear crawler. Cargo canisters filled with component parts for constructing the space structure are carried by the forward crawler. The space structure configuration is determined by the arrangement of the individual struts and nodes during the assembly process.

Abstract: A machine for cleaning out or dredging out ponds, marshes, or canals, comprises a central longitudinally extending fluid-tight cylindrical body having a low coefficient of friction with the ground and provided with withdrawable stabilizing feet. The base of the body is beveled at both ends. An excavating shovel, having two articulated arms actuated by cylinder devices, is mounted on each end of the body and pivotal through at least 180.degree. about a vertical axis from one lateral side of the body to the other under the control of another cylinder device. The two shovels act as excavating devices or as devices for axially displacing the machine over the ground or laterally displacing the machine over the ground in combination with the stabilizing feet.

Abstract: The invention provides material handling apparatus in the form of a lift arm assembly integratable with or releasably applicable to farm tractors or like relatively small, lightweight vehicles for front end loading and leveling having extended outreach capabilities. An extensible carriage which mounts stably and for guided reciprocable movement on the lift arms carries a material engaging device so interrelated as to enable an advantageous application of forces therethrough, both to break material free from a mass at ground level and to reorient the placement of material at elevated levels. In certain embodiments the material engaging device is tiltable in response and/or correspondence with movements of the carriage. In a preferred from of embodiment of the invention, a guided movement of the material engaging device and the outreach and tilting thereof is sensitively controlled by separate connectors extending thereto from both the lift arms and the carriage.

Abstract: A portable load handling apparatus includes a vehicle having a frame, and an elongated boom arm connected to the frame for pivotal movement about at least a first horizontal axis. The boom arm may pivot about a first vertical axis and be extendable and retractable as well. A load support member is connected to the boom arm by a wrist mechanism for pivotal movement about at least first and second generally perpendicular axes and may be pivotal about a third axis perpendicular to the first and second axes. A primary power source is actuatable to pivot the boom arm about the first horizontal and vertical axes and to extend and retract the boom arm and a secondary power means is actuatable to pivotally move the support member about the first, second and third axes. A control mechanism includes a control arm connected to the frame for pivotal movement about at least a second horizontal axis, with the control arm preferably pivotal about a second vertical axis and extendable and retractable as well.

Abstract: An excavator having a boom with slidably engaging base and beam parts is disclosed. The base part is mounted on a support part of the excavator for rotation about a horizontal axis; and a dipper arm which carries an excavating tool is pivotally suspended from the beam part. The base and beam parts are joined by channel section guides which permit sliding movement between the parts. A wedge member releasably fixes the relative position of the base and beam parts by wedgingly engaging both parts.

Abstract: A hydraulic linkage which is usable as a front loader on an agricultural or other tractor (1) comprises at least one jib, and usually two interconnected jibs (5, 6, 9) which jibs are upwardly and downwardly turnable about an axis (3) relative to frame means (2). Each jib (5, 6, 9) comprises telescopic firt (5) and second (6) portions and the second portions (6) are extendible from the first portions (5) during raising of the jibs so that a load/apparatus carried at the outer end (9) of each second portion (6) is raised substantially vertically, rather than arcuately about said axis (3). Spring (44) operated lost-motion mechanism prevents such extension during a lower arc of movement of the jibs (5, 6, 9) about said axis (3).

Abstract: A tree processing unit having a base and a boom with a front end and a back end, extending through the base. Means are provided for moving the boom through the base the base has means for gripping a tree at its butt end. Means are fixed on the front end of the boom for gripping and debranching the tree, and for cutting the top of the tree. The unit is adapted to be mounted on known motorized equipment so the unit can be carried and manoeuvred and provided with power.

Abstract: A machine comprising a rotatable telescopic boom assembly includes an outer boom section, an intermediate boom section rotatably mounted within the outer boom section, and an inner boom section located within the intermediate boom section on a telescopic relationship thereto. The inner boom section is adapted to carry an implement such as, for example, an impact hammer, at one end thereof. A mounting is provided to which the outer boom section is rigidly attached. Fluid actuating means are also provided for rotatably driving the intermediate boom section within the outer boom section continuously through 360.degree. in one direction of rotation and for reciprocating the inner boom section within the intermediate boom section.

Abstract: In a backhoe type of excavating apparatus comprised principally of: a main arm or mast fulcrumed at one end from a rear platform of a tractor; a second hydraulically articulated arm, or so-called dipper stick, supported by and pivoted on the free end of the main arm; and a trenching or digging bucket pivotally attached to the free end of the dipper stick and being hydraulically articulated to provide a swinging or curling motion thereto, an improved dipper stick constructed of telescoping sections for extending or shortening the length thereof in response to an internally contained hydraulic actuator and including at its mast supported end a hydraulic rotator assembly whereby the dipper stick (and attached digging bucket) may be rotated over approximately 150.degree. in each direction from its normal vertical orientation.

Abstract: An industrial robot system comprises a pair of vertically spaced parallel guide rails rigidly supported from the ground, a slide member slidably mounted on the guide rails having upper and lower pivots, a robot arm structure having a housing pivoted at the upper pivot of the slide member, and an outer and inner shaft axially movable as a single piece along the longitudinal axis of said housing, the inner shaft being rotatable about the longitudinal axis. A tool holding arm is attached to the forward end of the housing for unitary axial movement with the outer shaft and for unitary rotation with the inner shaft. A fluid operated telescopic cylinder is pivotally connected between the lower pivot of the slide member and a lower end portion of the robot housing for pivoting the robot arm structure at a desired angular position.

Abstract: An apparatus for excavating or cleaning out sumps and drainage pits includes a mobile, towable chassis rotatably supporting a platform thereon. A standard extends upwardly from the platform and an elongate, rigid boom structure and guide is mounted upon the standard for upward and downward swinging movement and for forward and rearward reciprocal movement relative to the platform. A material engaging member such as a bucket is mounted to a forward end of the boom structure and has a cover therewith whereby the bucket closes and traps mud or loose materials for removal from the sump or drainage pit. An engine mounted upon the platform powers a hydraulic pump for routing fluid under pressure to motors and rams controlling operation of the platform, boom structure and material engaging member.

Abstract: An elongated boom including relatively telescoped base and extension sections is provided with the base section pivotally supported from a mount for oscillation relative thereto about a horizontal axis extending transversely of the base section. First motor structure is provided for adjustably extending and retracting the extension section relative to the base section and a second motor structure is operatively connected between the base section and the mount for angularly positioning the base section relative to the mount. A generally horizontal elongated support arm has one end pivotally supported from the extension section free end for oscillation relative thereto about a horizontal axis extending transversely of the arm and extension section and third motor structure is operatively connected between the extension section and the support arm for angularly shifting the latter relative to the former.

Abstract: A telescoping boom has a contact assembly carried on one boom section and has a contact member engaging an adjacent boom section. The contact member is biased toward the adjacent boom section by a spring between the contact member and a piston which is reciprocated in a chamber and defines a sealed compartment. Hydraulic fluid is introduced into the compartment to compensate for wear on the contact member.

Abstract: The disclosure relates to a loading apparatus comprising an outer boom and an extension boom (telescopic boom), wherein the C-shaped bight of the hydraulic line, which bight extends in a rearward direction longitudinally of the outer boom and the telescopic boom, is housed in its entirety in a space defined by the walls of the telescopic boom and the outer boom and so arranged that, in all positions of the C-bight at the movements of the bight during extension and retraction of the telescopic boom, the opposite parts of the loop in the area of transition to the C-bight are defined by two relatively fixed walls situated between adjoining surfaces of the telescopic boom and the outer boom.

Abstract: Apparatus for manipulating a tool for conditioning material within a high temperature furnace. The tool is secured in one end of an air-cooled boom while the other end of the boom is connected to a carriage that is arranged to move reciprocally within a horizontally-aligned gantry. The gantry, in turn, is adjustably supported upon a chassis mounted turntable that is capable of being driven over the ground by means of a pair of endless treads. The gantry is connected to the turntable by hydraulic lifters which independently raise or lower the gantry at two separate locations along its length to impart an expanded degree of maneuverability to the tool. Shock absorber means are also operatively associated with the boom to prevent the boom structure from being damaged in the event the tool becomes hung up in the furnace.

Abstract: A self-propelled vehicle maneuverable in an underground mine includes an elongated mobile body having a forward end portion with a boom assembly mounted thereon. The boom assembly includes a pair of sections that are telescopically arranged to effect a change in the length of the boom. The outer end portion of the boom carries a material handling device which is operable to perform lifting, towing, recovery and other material handling operations in the mine. A pivot arrangement supports the boom assembly for lateral swinging movement on the front end of the mobile body. A pair of double-acting piston cylinder assemblies are mounted on the mobile body and are connected to the pivot arrangement for laterally swinging the boom assembly. The boom assembly is also connected to the pivot arrangement for upward and downward pivotal movement independent of the lateral swinging movement by operation of a lift cylinder.

Abstract: An arrangement in a hydraulically operated crane of the type having a supporting crane section and a movable crane arm system supported thereby and comprising support and guide means, telescopically extendable boom means including a first boom movably supported and guided by the support and guide means and a second boom supported by and telescopically movable in relation to the first boom; and drive means for moving the first boom in relation to the support and guide means and for moving the second boom in relation to the first boom; the drive means comprising an elongated flexible drive transmission means fixed to the support and guide means and extending into the first hollow boom through one end thereof and fixed to the second boom, the flexible transmission means being arranged such that a movement of the first boom in relation to the support and guide means will be transmitted by the flexible transmission means to the second boom for moving the latter in relation to the first boom a distance equal to the

Abstract: This disclosure relates to high-speed mobile working machines comprising a first engine for the high-speed drive of the vehicle and a second engine for driving the working device, e.g., a crane or the like. The second engine drives pumps which feed hydraulic fluid to hydraulic motors which power the working device. In one embodiment a mechanical clutch is provided for selectively coupling the outputs of both the first and second engines and transmitting the summed power to the vehicle for high-speed drive. In another embodiment a hydraulic motor, feeded by the pumps for driving the vehicle during the working is provided, the output of which is selectively coupled with the first engine and the summed power is transmitted to the vehicle for high-speed drive.

Abstract: A workpiece lift including a pivotable boom with a pivot end that moves horizontally as the load end of the boom is raised and lowered, allowing the load end to move along a substantially vertical line. In a preferred embodiment the load end of the boom terminates in a workpiece arm which supports a workpiece and which extends downwardly from the load end of the boom so that the workpiece may be lifted upwardly and outwardly in an arc.

Abstract: A versatile mobile high lift loader characterized by an extendible telescopic boom carried by a longitudinally extendible transfer carriage. The transfer carriage travels on stepped fore and aft longitudinal transfer rails for greater operator visibility. The transfer rails are stepped laterally to provide for maximum width of the operator compartment and to permit the use of dual front wheels. The transfer carriage and boom extension travel on cam roller non-friction bearings for cycling demands of the fork lift transferring boom. The transfer rails include readily replaceable hardened wear surfaces on a unitized frame. The loader includes modular drive train fabrication for less expensive manufacturing cost and easier servicing. It is provided with drive line disc brakes and locking differential for easy servicing, non-power assist and positive braking with and without load. The telescoping boom includes a novel hose reel assembly for transfer of internal hosing within the boom.

Abstract: A crane-excavator or the like has a boom, a saddle, a translatable stick and a digging implement. A stick cylinder and implement cylinder are provided. The ends of the stick and implement cylinder rams are connected to common lever arms which are pivoted to the stick on a transverse axis which is offset from the ram-lever connections and form the stick center line. The lever arms are connected to the digging implement in a manner so that the combined forces from both rams are transmitted to the implement to pivot the latter about its axis. The simultaneous movement of the stick cylinder ram and the implement cylinder ram causes the stick to extend or retract, thus causing a shift of the implement-stick pivot axis relative to the saddle. The implement may be raised or lowered even when the stick ram is fixed in length.

Abstract: A self-propelled, low profile material-handling vehicle mounted on a pair of front wheels and a pair of rear wheels. The vehicle supports an extendible boom rotatable around a horizontal pivot axis that is substantially located above the rear wheels. A cab for a driver is located on one side of the boom, and a load-carrying platform is located on the side of the boom opposite the cab. A well located in the vehicle body between the cab and the load-carrying platform is positioned lower than the pivot axis of the boom and is arranged to receive the boom when it is pivoted downward toward the front wheels so that a load can be maneuvered below grade level. The pivot axis is vertically located above the top of the wheels and below the top of a steering wheel located within the cab so that the driver's vision is substantially unobstructed when a load is carried by the boom close to the grade level.