Abstract: An automatic case loader for loading product in a trailer is disclosed. A mobile base structure provides a support framework for a drive subassembly, conveyance subassembly, an industrial robot, a distance measurement sensor, and a control subassembly. Under the operation of the control subassembly, product advances through a powered transportation path to an industrial robot which places the product within the trailer. The control subassembly coordinates the selective articulated movement of the industrial robot and the activation of the drive subassembly based upon the distance measurement sensor detecting objects within a detection space, dimensions of the trailer provided to the control subassembly, and dimensions of the product provided to the control subassembly.

Abstract: A system for loading/unloading solid materials from an open top rail car is described. The system may comprise suitable safety features, structural reinforcement and loading features to permit operation of the system by a single operator in a safe manner. In some examples, the system comprises a crawler excavator reversibly coupled to a sled attachment to permit movement of the crawler excavator along a top surface of an open top rail car.

Abstract: An autonomous device for loading and unloading trucks comprises a mobile body, a robot arm and a body conveyor system to convey cartons during loading and unloading. A manipulator attaches to a moveable end of the robot arm and is maneuverable within the tight confines of the truck. The manipulator picks up a row of articles at a first location and places the row of articles down at a second location. The manipulator is reconfigurable to match to both locations.

Abstract: An automatic truck unloader for unloading/unpacking product, such as boxes or cases, from trailers and containers is disclosed. In one embodiment, a mobile base structure provides a support framework for a drive subassembly, conveyance subassembly, an industrial robot, a distance measurement subassembly, and a control subassembly. Under the operation of the control subassembly, an industrial robot having a suction cup-based gripper arm selectively removes boxes from the trailer and places the boxes on a powered transportation path. The control subassembly coordinates the selective articulated movement of the industrial robot and the activation of the drive subassembly based upon the distance measurement subassembly detecting objects, including boxes, within a detection space, and dimensions of the trailer provided to the control subassembly.

Abstract: According to one embodiment, a transfer apparatus includes a base, a first linear motion member, a second linear motion member, a moving conveyor, an extraction arm, and a holding part. The first linear motion member is supported by the base and is movable in a first direction. The second linear motion member is supported by the first liner motion member and is movable in a second direction crossing the first direction. The moving conveyor is supported by the second linear motion member and includes a belt for conveying an article. The extraction arm is provided on a side of the moving conveyor, extracts the article and places the article on the belt. The holding part is provided at an end of the extraction arm and holds the article.

Abstract: Disclosed are various embodiments for an automated package unloading system. An automated package unloading system can include an end effector supported by a supporting frame which is mounted to a conveyor system. The end effector and/or the conveyor can be configured to move into and out of a container containing stacked packages. The end effector can be configured to attach to the packages and pull the packages from their original position. The end effector can further be configured to release the packages onto the underlying conveyor.

Abstract: A mobile lift caddy is configured to remove a vehicle from a primary lift while the vehicle is elevated above the workplace floor and then transport the vehicle to another location. The mobile lift caddy is dimensioned to fit between vertical lift posts of the primary lift. A mobility drive arrangement moves the caddy under operator control to and from the workplace location. Caddy lift arms are configured to accept a portion of removable lift pad assemblies at the lift arms of the primary lift, to lift out the lift pad assembly with the vehicle supported on the lift pads.

Abstract: The inspection device of a head-up display (HUD) for a vehicle automatically inspects and corrects images projected on a windshield glass of the vehicle by an HUD unit in the vehicle and may include i) a frame where the vehicle is conveyed in-and-out, ii) a moving unit coupled to the frame and reciprocating in the front-and-rear and left-and-right directions of the vehicle, iii) a multi-axis robot mounted on the moving unit and configured to move the vehicle in an up-and-down and back-and-forth direction, iv) a vision camera mounted on an arm of the multi-axis robot and digitally capturing images projected on the windshield glass as vision data, and v) a controller inspects whether the HUD unit operates normally and controls operation of the HUD unit by analyzing the vision data acquired from the vision camera.

Abstract: The invention relates to a lifting apparatus of a type which can be used to allow movement of goods to and from and between first and second goods storage areas. The apparatus is located in a space between openings into both of said storage areas and includes a platform which can be raised in the vertical plane so as to allow differences in height between floors of the respective goods storage areas to be taken into account such that for example goods can be moved onto the platform of the lifting apparatus from a first floor height on a first goods storage area to a floor of a second goods storage area at a different height. The lifting apparatus can be used to move goods to and from a floor of a goods storage area which is at the similar height to a support surface on which the other of the goods storage areas is located, with the other of the goods storage areas typically being a vehicle trailer.

Abstract: A component transferring system for a vehicle assembly line may include a carriage unit that is operated by an electrical signal to move along a vehicle assembly line, the carriage unit including a cylinder unit that is disposed at both sides of a front side and a rear side to move up and down in accordance with the moving direction, a both side conveyor that is disposed along a moving route of the carriage unit, and a carriage lifting unit that is disposed at an inside of the both side conveyor in at least one area of the vehicle assembly line to move an object loaded on the carriage unit to the both side conveyor.

Abstract: A conveyance device suitable for an automobile final assembly facility has an elevating table for supporting an object to be conveyed in a conveyance carriage which travels along a conveyance path. The elevating table has a table bearing base removably mounted on a table main body for supporting a bottom portion of the object to be conveyed. The table main body has a top surface flush with a flat work floor on the conveyance carriage when the table main body is at a lowering limit position. On the conveyance carriage, a strut bearing base formed of a pair of left and right strut members located on left and right sides of the object to be conveyed, when viewed in plan, and a bearing portion, provided for the strut member, for supporting left and right edges of the object to be conveyed is mounted removably in a state in which the pair of left and right strut members are positioned at both left and right sides of the elevating table.

Abstract: A transfer method (100) is disclosed. It includes: transporting (102) with a motorized vehicle a container on a chassis and aligning the container with a buffer; raising (104) the container with a support structure comprising an elevator connected to the chassis, from a resting position to a lifted position a predetermined height above the chassis; entering (106) a containment cavity of the buffer while in the lifted position, the buffer including a container stand including shelves located on sides on the containment cavity, to allow travel in and out of the containment cavity, the shelves include movable support pads with a retracted position configured to allow unobstructed travel in and out of the containment cavity and an extended position configured to support a container with the movable support pads on the sides on the containment cavity.

Abstract: A transition dock is disclosed allowing palletized product to be loaded into transport conveyors at a worksite. The product may be produce and the worksite may be a field where the produce is harvested. Where operating at a field where produce is harvested, the loading dock facilitates loading of the produce into a reefer to begin the cold chain at the field.

Abstract: A portable raise climbing system is provided that comprises a starter box for interfacing with an existing raise climb track, a raise climber that is deployed by the system onto the existing track for normal raise excavation operations, and a transporter. The transporter is configured to carry the raise climber from site to site by interfacing with moving equipment. The moving equipment preferably includes a front hydraulic quick connect/disconnect lift system, e.g. front-end loader, forklift, plough, scooptram, etc.

Abstract: A method for positioning a large load into a transport position is provided. According to the method, the load is placed upon a frame structure with a substantially horizontal extension. The raising device is placed transport plane underneath the frame structure. The raising device is then extended in a vertical extension reaching between the transport plane and the frame structure so that the frame structure and the load are raised above the transport plane and are held in position by the raising device. Subsequently, the vertical extension of the raising device is decreased into the transport position. Further, a method for positioning a large load into a storage position and a transport system for such methods are also provided.

Abstract: A portable raise climbing system is provided that comprises a starter box for interfacing with an existing raise climb track, a raise climber that is deployed by the system onto the existing track for normal raise excavation operations, and a transporter. The transporter is configured to carry the raise climber from site to site by interfacing with moving equipment. The moving equipment preferably includes a front hydraulic quick connect/disconnect lift system, e.g. front-end loader, forklift, plough, scooptram, etc.

Abstract: A system for unloading and loading load-containing units, such as containers or movable boxes, presenting lift blocks from and onto railway trucks arranged to move on a main track along a longitudinal travel axis. The system including at least two pairs of lifting members separated at least in space above the main track, and able to flank the load-containing unit on opposite sides about the main track and to translate it vertically by achieving a grip on lift blocks.

Abstract: A self-contained mobile storage container includes a truck having a platform with a track, a storage container removably placed on the track on the platform, wherein the storage container includes a front end, a rear end and parallel sides. In addition, there are devices to secure the storage container to the platform, as well as a lift to elevate the storage container and remove it from the platform. Other devices are included to maneuver the storage container to a different geographical location for storage.

Abstract: The mobile aircraft seat-wheelchair for people requiring special assistance consists of a standard aircraft seat that includes a seat (2), two armrests (1) and a backrest (3), as well as wheels (7) attached on the chassis (11), a legs rest (13), a handle (16), a motor mechanism (6) for its motion, control panels (4,5), a secure locking mechanism (8,9) for its locking on the aircraft cabin floor (15), and inputs (10) for the electrical connection between aircraft systems and access buttons (14) of the aircraft seat-wheelchair The mobile aircraft seat-wheelchair can be used by disabled people and assistants ail the way through, from the car park of a departing airport up to the pick up point of the arrival airport, including intermediate steps like boarding ramps, jet ways, lifts, shuttle uses, ambilifts, and within the aircraft cabin during flight. In the last case, it can be used by able-bodied passengers too, if there is no disabled passenger in the flight.

Abstract: An air cart for use in an agricultural seeder includes a frame; a material tank carried by the frame; an arm pivotally coupled with the frame; a conveyor coupled with the arm for conveying material to the tank; and a hydraulic positioning system coupled with the conveyor for automatically moving the conveyor to a selected one of a plurality of predetermined positions.

Abstract: The cargo transport system according to this invention employs a tow vehicle that can automatically follow and run upon guide lines. The tow vehicle can tow cargo laden equipment such as container dollies to thereby automatically transport the air cargo. The air cargo is conveyed by an underground air cargo conveyor mechanism which has the conveyor line including the guide line installed underground to link the air cargo holding area in the airport terminal building and the aircraft parking area. Further, the system connects the loading/unloading cargo door of the aircraft and the underground loading/unloading position for the underground air cargo conveyor mechanism by an air cargo elevator.

Abstract: A rail-car unloading apparatus and method for the same configured to move over a surface. The rail-car unloading apparatus comprises a frame structure, having opposite first and second sides, hydraulic arms and hydraulic legs. The hydraulic arms are coupled to the frame structure with at least two of the hydraulic arms extendable from the first side of the frame structure and at least two of the hydraulic arms extendable from the second side of the frame structure. The hydraulic legs are coupled to the hydraulic arms and configured to extend transverse from the arm portions. The hydraulic legs are operable to move the frame structure between a non-elevated position and an elevated position. With this arrangement, the hydraulic arms are configured to move the frame structure laterally toward the hydraulic legs disposed on one of the first side and second side of the frame structure while the frame structure is in the elevated position.

Abstract: An exemplary mobile plating system is provided for performing a plating process using virtually any known or available deposition technology for coating or plating as substrate. The mobile plating system may include a vacuum chamber positioned in a mobile storage volume, an external vacuum pump, and a control circuitry to control the operation of some or all of the operations of the external vacuum pump. The external vacuum pump is positioned in the mobile storage volume when the mobile plating system is in transit, and is positioned external to the mobile storage volume when the mobile plating system is stationary and in operation. The external vacuum pump may be mounted on a skid, and, in operation, the external vacuum pump couples with the vacuum chamber to assist with producing a desired pressure in the vacuum chamber.

Abstract: The specification and drawings describe and show one embodiment of the present invention in the form of an inclined ramp in combination with a lifting device for lifting and lowering articles to and from the tarmac from and to the upper loading area at the top of a service stairway next to a passenger terminal bridge/walkway.

Abstract: The specification and drawings describe and show one embodiment of the present invention in the form of an inclined ramp in combination with a lifting device for lifting and lowering articles to and from the tarmac from and to the upper loading area at the top of a service stairway next to a passenger terminal bridge/walkway.

Abstract: An exemplary method for using a mobile plating system is provided that includes locating the mobile plating system at a desired location for plating, positioning an external vacuum pump from an interior position of a mobile storage volume of the mobile plasma plating system to an exterior position, and coupling the external vacuum pump to a vacuum chamber within the mobile storage volume of the mobile plasma plating system using a flexible piping segment, rigid coupling with a dampening effect, or other arrangement operable to reduce and/or eliminate the mechanical vibrations within the vacuum chamber due to the operation of the external vacuum pump.

Abstract: An exemplary mobile plating system is provided for performing a plating process using virtually any known or available deposition technology for coating or plating as substrate. The mobile plating system may include a vacuum chamber positioned in a mobile storage volume, an external vacuum pump, and a control circuitry to control the operation of some or all of the operations of the external vacuum pump. The external vacuum pump is positioned in the mobile storage volume when the mobile plating system is in transit, and is positioned external to the mobile storage volume when the mobile plating system is stationary and in operation. The external vacuum pump may be mounted on a skid, and, in operation, the external vacuum pump couples with the vacuum chamber to assist with producing a desired pressure in the vacuum chamber.

Abstract: An exemplary mobile plating system and method are provided for performing a plating process using virtually any known or available deposition technology for coating or plating. The mobile plating system may include a vacuum chamber positioned in a mobile storage volume, an external vacuum pump, and a control module to control the operation of some or all of the operations of the external vacuum pump. The external vacuum pump is positioned in the mobile storage volume when the mobile plating system is in transit, and is positioned external to the mobile storage volume when the mobile plating system is stationary and in operation. The external vacuum pump may be mounted on a skid, and, in operation, the external vacuum pump couples with the vacuum chamber to assist with producing a desired pressure in the vacuum chamber.

Abstract: A method of conveying articles on a transport vehicle from a first location to a second location spaced from the transport vehicle including the step of providing a conveyor system comprising (a) a cart for supporting an article, (b)mechanism for guiding the cart along a predetermined path between the first location and the second location, and (c) mechanism for supporting at least part of the guiding mechanism on a subjacent surface. The method further includes the step of assembling at least part of at least one of the guiding mechanism and the supporting mechanism on site. The method also includes the steps of placing the cart on the guiding mechanism, placing an article from the transport vehicle on the cart, translating the cart with the article thereon from the first location to the second location along the predetermined path, and removing the article from the cart at the second location.

Abstract: A wheeled elevator apparatus for use in transferring freight between a highway truck and a freight storage dock or building, the apparatus including an elevatable platform powered by hydraulic cylinder means and including two oppositely directed ramps hingedly connected to said platform to provide access to said platform for pallet jacks moving pallets of freight, one of said ramps being long enough to reach inside the highway truck to form a bridge from the elevatable platform to the highway truck, the bridge having side curbs and being sufficiently narrow and laterally off-set to permit an independently operated roller, skate-wheel, or belt conveyer to function simultaneously beside the elevatable platform for moving small individual packages of freight between the same building or dock and the same truck.

Abstract: A baggage slide attached to a movable elevated passenger walkway/bridge.

Abstract: An assembly system and method thereof for manufacturing an outdoor unit of a dual-unit type air conditioner employs an assembly system in which the outdoor unit is assembled, a refrigerant charging section in which the assembled outdoor unit is charged with a refrigerant, a testing section in which the outdoor unit charged with the refrigerant is tested, and a packaging section in which the outdoor unit after passing the test in the testing section is packaged and forwarded. The outdoor unit is carried on a mobile cart through the assembly section, the refrigerant charging section, and the testing section.

Abstract: A high density narrow-profile storage system, comprising the steps of: unloading a container from a train car; storing the container in a storage yard substantially adjacent and parallel to a track; loading the container on a buffer in proximity to the storage yard; lowering the container on a chassis of a tractor trailer; and transporting the container away from the buffer. The system can include: a crane; a narrow-profile storage yard substantially adjacent and parallel to a train track; a buffer adapted to receive and raise or lower a container from or onto a chassis of a tractor trailer; and a tractor for transporting the container to or from the buffer.

Abstract: An assemblage for aligning a roll to a chucking device has at least two flexibly movable, spaced roll support members arranged planarily for supporting the roll for alignment with a fixed positioned chucking device. Each roll support member has a compression head biased for movement by a plurality of cooperating spring members. Precise alignment of the core with the chucking device results from the force imparted to the flexibly movable support member bearing the roll by the chucking device engaging the core.

Abstract: To cope with recent LCD or PDP of larger size, an efficient transfer technology is demanded in manufacturing a larger substrate. It calls for a transfer method for such larger substrate with a less required space, and a substrate transfer cassette enabling such method. A technology is disclosed, which comprises a substrate transfer cassette (50) containing a plurality of substrates, a dolly (55) for loading the substrate transfer cassette (50), and a plurality of cassette holders (70) having a rotating arm (71) which can rotate in the vertical direction, wherein a substrate cassette (50) is transferred from a position near another cassette holder to a position near a destination cassette holder with the dolly (55), raised by the rotating arm (71) on the destination cassette holder (70) from the lower section to the upper section of the dolly (55), and moved from the dolly (55) to the cassette holder (70).

Abstract: A conveyance system provides for storing, monitoring, and retrieving (multi-purpose) canisters "MPC" for intermediate storage of spent fuel rods from nuclear power plants. The system includes a shielded transport system, an access corridor shielded for radiation, a lifting transport conveyance, an elevation chase, a dry-pool, seismic bracing to support the canisters in storage, associated shielding to confine radiation to the dry-pool, and air manifold system for cooling, and facilities to add alternative liquid radiation shielding around the canisters in the dry pool.A RR-locomotive moves a RR-car having a radiation shielded transport container to communicate with a dry-pool access corridor. A bridge crane carries an "MPC" through the corridor to a vertical chase which accesses to the dry-pool. The bridge crane places the "MPC" at a cooling vent manifold. A seismic brace engages the "MPC" secure to the dry-pool wall. A configuration of radiation shielding confines emissions.

Abstract: A device for mounting and dismounting a heavy weight includes a vertical frame having an opening formed on a side thereof, through which a heavy weight is received into the frame. A laterally extending frame is formed at a lower part of the vertical frame. A stopping member is attached to the lateral frame, opposite to the opening, to prevent the heavy weight from being moved outside the frame. A moving device moves the heavy weight to the frame and a lifter raises and lowers the heavy weight in the frame.

Abstract: This apparatus relates to a frame structure for packing multiple vehicles in a stacked configuration into a transport container such that a first vehicle is located above the floor of the container and inclined relative to that floor. The structure includes a base, at least one vehicle support device including two vehicle supports each having a support member vertically and laterally displaced from one another, and attachment devices including at least one pair of attachment members having brackets for being attached across the bottom of the vehicle, laterally spaced from one another and received within receptacle zones defined within the respective vehicle supports, the attachment members being parallel to the vehicle supports.

Abstract: A tumbler loader assembly is capable of moving a container to be tumbled from a conveyor loading area into a tumbler device using a feed cart while maintaining a low cart profile. The feed cart is capable of moving the container on conveyor rollers along the feed cart as well as having the capability for movement along a guide rail from a first position where the container is loaded onto the feed cart to a second position interior of the tumbler. The tumbler device has raising and lowering capability for interengaging the feed cart as well as for positioning the container for proper tumbling. Upon loading of the container onto the feed cart, the feed cart moves along the guide rail into the tumbler. The tumbler lowers to interengage the feed cart. The feed cart then transfers the container into the tumbler and the tumbler raises to allow the feed cart to return to its starting position.

Abstract: The present invention provides a nestable intermodal container for hauling materials. In one embodiment, this container includes a bottom wall; a plurality of sidewalls sloped generally outwardly from the bottom wall, the sidewalls and bottom wall defining an interior of the container, and the sidewalls having an upper perimeter defining an opening that is larger that the bottom wall; lifting members attached to at least two opposing sidewalls, each of the lifting members being adapted to engage a crane and a vertical wall of a rail car. The bottom wall, sidewalls and lifting members are desirably configured so that the container may be substantially received in another substantially similar container. In a method of the invention, a number of such containers can be used. These containers are filled at a collection site, transported to a processing site located remotely from the collection site for at least a distance on the back haul leg of a rail route and emptied at the processing site.

Abstract: An apparatus for loading reels into a packaging machine comprises a loading device that has a post rotating about a vertical axis under the actuation of a drive unit; a lifting element, which is provided with elements for supporting a reel to be loaded and is guided so that it can slide longitudinally with respect to the post and can move under the actuation of an additional drive unit between a lowered position for picking up the reel and a raised position for transferring the reel to the packaging machine; and sensors for controlling respectively the angular rotation of the post and the coordinated longitudinal sliding movement of the lifting element.

Abstract: An improved method and apparatus for emptying a load of multilayer container columns is disclosed. An improved multilayer container column construction includes a plurality of vertically aligned and stacked containers connected to one another by hinges along their lower front edges. The containers have lift arms connected to their back sides so that they can be lifted forward about their hinged edges for emptying their contents through discharge gate sides. Automated gate opening apparatus is provided for selectively opening the container gates. Automated lifting apparatus, generally located at a processing plant, is configured to sequentially tilt the containers of the container column load while still on the transport truck, to systematically gently unload the container contents, one level at a time into an accompanying discharge collector.

Abstract: Apparatus for distributing products from a central unit to a plurality of peripheral units, including at least one annular guide which connects the central unit to at least one part of the peripheral units, at least one independently motorized trolley for conveying at least one product container, the trolley being retained on the guide, and at least one device, present at each peripheral unit, for removing and conveying the container to a region for the use of the products.

Abstract: A transport, storage, monitoring, and retrieval system for casks including intermediate storage of spent fuel rods from nuclear power plants. The system consists of a powered rail transport car which carries a cask standing on its end. A cross-ways traveling powered rail "under car" unit carries the rail transport car and loaded cask transversely on rails underneath to align with a bay rail which the powered rail car traverses to the cask storage location. Bridge cranes off-load the casks and with monitoring equipment perform remote cask inspections. Bay rails and a pair of cross-ways traveling "under car" units serve for movement of both the transport car and the bridge units. Casks are located automatically at specific addresses for inventory control and data logging of radioactive emissions. The system may operate remotely and cask conditions are monitored from automated retrieved collected at an off-site data base.

Abstract: A novel mechanism is presented that is able to harvest and load and to unload and install large rolls of sod with only one worker. It is equally useful with conventional sods grown on soil as well as sods grown over an impervious surface. The device is attached by a shiftable bracket to the utility mounting plate and hydraulics of a suitable tractor, skid steer loader, or modified fork lift. It consists of a steel spear or prong attached to a clevis that rotates slightly more than 180 degrees. Cones are placed on the hinged spear and these position PVC pipe or other tubing of the same length as the sod roll desired. The spear with cone(s) and tubing is placed at a right angle, either to the left or right, of the direction of the loader and dropped to the surface at the end of a cut sheet of sod. Small protrusions or prongs on the surface of the tubing lightly grasp the sod and begin rolling it up on the tubing.

Abstract: A railroad car conversion apparatus for hauling a flowable material in an open-topped railroad car having a frame for holding a plurality of bladders, which may depend downwardly from the frame into the railroad car. The frame is adapted to fit on top of the sidewalls of a hopper car, and be readily attached or detached from the railcar. A plurality of bladders, which may be attached directly to this frame for removal therewith, are also attached in such a manner that they may be readily filled with or emptied of a fluid of a particulate, flowable material without requiring the removal of the frame. The conversion apparatus includes an elongate central beam having first and second ends, and a plurality of bladder-connecting devices for releasably attaching a plurality of material-receiving bladders to the central beam.

Abstract: An improved method and apparatus for emptying a load of multilayer container columns is disclosed. An improved multilayer container column construction includes a plurality of vertically aligned and stacked containers connected to one another by hinges along their lower front edges. The containers have lift arms connected to their back sides so that they can be lifted forward about their hinged edges for emptying their contents through discharge gate sides. Automated gate opening apparatus is provided for selectively opening the container gates. Automated lifting apparatus, generally located at a processing plant, is configured to sequentially tilt the containers of the container column load while still on the transport truck, to systematically gently unload the container contents, one level at a time into an accompanying discharge collector.

Abstract: The device serves to convey products singly and in succession to a work station. For example rolls of strip material can be conveyed to a wrapping machine, or containers of cigarettes can be conveyed to a packaging unit. The device comprises a conveyor system by which products loaded into a magazine are supported and caused to advance from an infeed end of the magazine toward a mechanism, positioned at an outfeed end, which the transfers each product to a position within the work station. The movement of the conveyor system is reversible, and with a transfer mechanism installed at both the infeed and the outfeed end of the magazine, the contents can be emptied from either end without manual or machine assistance.

Abstract: Cigarettes are supplied to a packaging machine by equipment comprising an infeed hopper into which the cigarettes are supplied in bulk, a rotating head providing at least one compartment to accommodate a tote-box type container filled with cigarettes, from which the contents of successive containers are directed toward the hopper, and a passage directly beneath the rotating head admitting a succession of trucks each carrying several of the containers spaced apart at identical distance; the truck is propelled forward intermittently by a drive system, proceeding in discrete steps equal to the distance between centers of the containers in such a way that an elevator can operate during the pauses to shuttle the full and empty containers to and from the head.

Abstract: A lift is coupled to the outer cab of a telescoping bridge. The lift has a carriage that can be moved by a cable and a motor upward or downward and which includes a platform that has sensing means for controlling the motor for stopping downward movement of the carriage when it engages the ground. An electrically operated safety catch is provided to prevent the carriage from falling in the event the cable breaks. A safety system is provided which prevents the bridge from moving if the carriage is not in the up position and its door is not closed.