The present disclosure provides a device to assist in confined space entry. The device includes a housing including a top surface, a bottom surface opposite the top surface, a first end positioned between the top surface and the bottom surface, and a second end opposite the first end and positioned between the top surface and the bottom surface. The device also includes a channel in the housing extending from the bottom surface in a direction towards the top surface, wherein the channel is between the first end and the second end. The device also includes a first roller rotatably coupled to the first end of the housing via a first pin, and a second roller rotatably coupled to the second end of the housing via a second pin.

An unlocking structure of workbench ladder includes a platform and two ladders hinged to the two ends of the platform; wherein, the ladder includes an unlocking structure relative to the hinged joint of the platform, and the unlocking structure includes an operating button, rotating lock tongue and a first elastic element; the rotating lock tongue is arranged in the column and the upper end is a locking hook which is locked and located in the locking plate at the bottom of the platform; the first elastic element acts between the rotating lock tongue and the column driving and positioning the locking hook toward the locking plate to lock the ladder and the platform; the operating button acts on the rotating lock tongue to overcome the first elastic element and drive the locking hook to move in a direction opposite to the locking plate, unlocking the ladder and the platform.

A viscous clutch head may be replaced by selecting a viscous clutch head and a mount adapter. The viscous clutch head and the mount adapter may be selected from a group of universal modular fan drives and from a group of mount adapters. The mount adapter of a threaded type or a flange and bolt type may be selected. Depending on the viscous clutch head to be replaced, a fan adapter and/or a pilot adapter may also be selected from a group of fan adapters and from a group of pilot adapters. Accordingly, a range of models of viscous fan clutch systems may be replaced by using a limited number of parts. These parts may be stored on a tool cart. As different models of viscous fan clutch systems may be replaced using a limited number of parts, the in-stock inventory of replacement parts may be reduced.

A viscous clutch head may be replaced by selecting a viscous clutch head and a mount adapter. The viscous clutch head and the mount adapter may be selected from a group of universal modular fan drives and from a group of mount adapters. The mount adapter of a threaded type or a flange and bolt type may be selected. Depending on the viscous clutch head to be replaced, a fan adapter and/or a pilot adapter may also be selected from a group of fan adapters and from a group of pilot adapters. Accordingly, a range of models of viscous fan clutch systems may be replaced by using a limited number of parts. These parts may be stored on a tool cart. As different models of viscous fan clutch systems may be replaced using a limited number of parts, the in-stock inventory of replacement parts may be reduced.

Devices, systems, and methods for positioning a vehicle frame in a plurality of rotational positions about an axis of rotation and performing at least two assembly tasks are provided. An assembly and a system that includes forward and rear toolings that engage and retain forward and rear portions of the vehicle frame, and that cooperatively rotate the vehicle frame about an axis of rotation are provided.

A tire top tool tray apparatus for storing tools on top of a tire while working on a truck includes a tray body comprising a tray inside. A pair of pivot rods is coupled to the tray body and a pair of legs is coupled to the pair of pivot rods. The pair of legs comprises a left leg and a right leg each having a pair of support arms coupled to a left pivot rod and a right pivot rod, respectively. The pair of legs each has a cross bar extending between the pair of support arms. The pair of legs moves between a collapsed position and an alternate extended position. A plurality of springs is coupled to the pair of pivot rods and applies pressure on the pair of pivot rods to move the pair of legs towards the collapsed position.

A tire top tool tray apparatus for storing tools on top of a tire while working on a truck includes a tray body comprising a tray inside. A pair of pivot rods is coupled to the tray body and a pair of legs is coupled to the pair of pivot rods. The pair of legs comprises a left leg and a right leg each having a pair of support arms coupled to a left pivot rod and a right pivot rod, respectively. The pair of legs each has a cross bar extending between the pair of support arms. The pair of legs moves between a collapsed position and an alternate extended position. A plurality of springs is coupled to the pair of pivot rods and applies pressure on the pair of pivot rods to move the pair of legs towards the collapsed position.

A body support device includes a body attachment portion having a first side and a second side, the first side including a plurality of receiving channels, and a leg assembly including an elongate member having an elongate body, a first end having a coupling interface configured for releasable attachment with the body attachment portion and a second end extending from the body attachment portion, wherein the coupling interface includes a hinge assembly having a first hinging portion and a second hinging portion, and wherein the second hinging portion is configured for pivotal movement such that the elongate member is configured for movement between extended and retracted positions.

A body support device includes a body attachment portion having a first side and a second side, the first side including a plurality of receiving channels, and a leg assembly including an elongate member having an elongate body, a first end having a coupling interface configured for releasable attachment with the body attachment portion and a second end extending from the body attachment portion, wherein the coupling interface includes a hinge assembly having a first hinging portion and a second hinging portion, and wherein the second hinging portion is configured for pivotal movement such that the elongate member is configured for movement between extended and retracted positions.

An automobile door hanger apparatus. The automobile door hanger apparatus includes a vertical member with two arms. The two arms have two plates on them that provide tubular members. The tubular members are in vertical alignment and are sized so that a removable automobile door can be attached to them. The automobile door hanger apparatus allows for four removable automobile doors to be attached to it such that the doors are safely and effectively stored.