Apparatus adapted for use with an existing wire tugger includes a primary frame, a slide frame configured to receive the wire tugger, and a jack that causes the slide frame and existing wire tugger to move up and down, thereby enabling a user to position the upper end adapter of the existing wire tugger proximate to an overhead wire pull location. The system enables the existing wire puller to be transported and physically oriented to address a broader range of overhead wire pulling applications on jobsites. A wheeled cart facilitates traversing throughout jobs and vertical wire-puller mounting, thereby mitigating space constraints while allowing for easier set-up and a broader range of uses. Various interchangeable end adapters facilitate temporary coupling and stabilization with respect to different conduit sizes.

Apparatus adapted for use with an existing wire tugger includes a primary frame, a slide frame configured to receive the wire tugger, and a jack that causes the slide frame and existing wire tugger to move up and down, thereby enabling a user to position the upper end adapter of the existing wire tugger proximate to an overhead wire pull location. The system enables the existing wire puller to be transported and physically oriented to address a broader range of overhead wire pulling applications on jobsites. A wheeled cart facilitates traversing throughout jobs and vertical wire-puller mounting, thereby mitigating space constraints while allowing for easier set-up and a broader range of uses. Various interchangeable end adapters facilitate temporary coupling and stabilization with respect to different conduit sizes.

The present disclosure provides a hydraulic jack, including a base as a carrier for mounting other components; an inner cylinder barrel vertically fixed to the base, a sliding cavity being formed in the inner cylinder barrel; an outer cylinder barrel vertically and slidably fitted outside the inner cylinder barrel; a valve plug assembly slidably fitted in the sliding cavity, and the valve plug assembly being rigidly connected to the outer cylinder barrel via a valve plug rod and being able to slide synchronously with the outer cylinder barrel; a valve plug driving assembly mounted on the outer cylinder barrel; and a supporting component mounted on the side wall of the outer cylinder barrel in an up-down adjustable mode. The hydraulic jack of the present disclosure is compact in structure, high in strength, high in load capacity, long in stroke, and safe and reliable in use.

A floor jack and a frame therefor including a pair of arched side plates, hubs, axles, and spreader bars are provided. A first pair and a second pair of hubs are positioned at front ends and rear ends of the arched side plates respectively. A first axle and a second axle connect the arched side plates to the first pair and the second pair of hubs at the front ends and the rear ends of the arched side plates, respectively, using pairs of adjustable collars that pivot between lower and upper positions. The spreader bars separate the arched side plates along their length. The frame is configured for use in a conventional jack or in a mega jack to provide increased elevation by fixing the axles to the lower or upper positions of the adjustable collars. A frame is also provided for a fixed height floor jack including non-adjustable collars.

A floor jack and a frame therefor including a pair of arched side plates, hubs, axles, and spreader bars are provided. A first pair and a second pair of hubs are positioned at front ends and rear ends of the arched side plates respectively. A first axle and a second axle connect the arched side plates to the first pair and the second pair of hubs at the front ends and the rear ends of the arched side plates, respectively, using pairs of adjustable collars that pivot between lower and upper positions. The spreader bars separate the arched side plates along their length. The frame is configured for use in a conventional jack or in a mega jack to provide increased elevation by fixing the axles to the lower or upper positions of the adjustable collars. A frame is also provided for a fixed height floor jack including non-adjustable collars.

A floor jack and a frame therefor including a pair of arched side plates, hubs, axles, and spreader bars are provided. A first pair and a second pair of hubs are positioned at front ends and rear ends of the arched side plates respectively. A first axle and a second axle connect the arched side plates to the first pair and the second pair of hubs at the front ends and the rear ends of the arched side plates, respectively, using pairs of adjustable collars that pivot between lower and upper positions. The spreader bars separate the arched side plates along their length. The frame is configured for use in a conventional jack or in a mega jack with increased elevation by fixing the axles to the lower or upper positions of the adjustable collars. A frame is also provided for a fixed height floor jack including non-adjustable collars.

A floor jack and a frame therefor including a pair of arched side plates, hubs, axles, and spreader bars are provided. A first pair and a second pair of hubs are positioned at front ends and rear ends of the arched side plates respectively. A first axle and a second axle connect the arched side plates to the first pair and the second pair of hubs at the front ends and the rear ends of the arched side plates, respectively, using pairs of adjustable collars that pivot between lower and upper positions. The spreader bars separate the arched side plates along their length. The frame is configured for use in a conventional jack or in a mega jack with increased elevation by fixing the axles to the lower or upper positions of the adjustable collars. A frame is also provided for a fixed height floor jack including non-adjustable collars.

Engine installation systems and related methods. An engine installation system includes an adapter cradle and a transport dolly. The adapter cradle is configured to support the engine, and the transport dolly is configured to be selectively and operatively coupled to the adapter cradle to support the adapter cradle to facilitate transporting the adapter cradle and the engine across a ground surface. The adapter cradle is configured to be selectively coupled to each of the transport dolly and the vehicle. The adapter cradle is configured to pivot relative to the transport dolly or relative to the vehicle to transition between a transport configuration and an upright configuration. In examples, methods of installing an engine within an engine bay of a vehicle include positioning the engine beneath the engine bay, pivoting the engine relative to the vehicle, and lifting the engine into the engine bay.

Vessel transfer systems are provide herein. The systems include bogies, including a pivoting bogie and a rack and pinion bogie, as well as associated cradles, carriages, and power and control units. The pivoting bogie includes a first side frame, a second side frame, at least one wheel coupled with each of the first and second side frames, and a lift member coupled with each of the first and second side frames. The lift member is pivotably coupled to the first side frame. The rack and pinion bogie includes a frame and pinion gears coupled with the frame. The pinion gears can be selectively coupled with a gear rack, such as at a shipyard. Also provided herein are methods of use of one or both of the bogies and associated equipment, such as for moving vessels within a shipyard.

An adapter assembly for lifting a vehicle includes an adapter defining a first pin aperture, a second pin aperture, and an adapter aperture, a first pin, a second pin, and a cross member removably received by the adapter aperture. The first pin is configured to be removably received by the first pin aperture and a first aperture defined by a frame of the vehicle to selectively couple the adapter to the frame. The second pin is configured to be removably received by the second pin aperture and a second aperture defined by the frame of the vehicle to selectively couple the adapter to the frame.