A conveyor system conveys devices for receiving components to be welded together, especially for internal combustion engine exhaust systems, into and out of a welding cell. The conveyor system includes a conveying vehicle (62) with a chassis (64) that can travel on a subfloor via rollers (68). A superstructure (78) is carried vertically adjustably on the chassis (64). At least one device carrier (14) receives components to be welded together in a position intended for the welding together in relation to one another. A positioning/holding formation (94) is provided on the superstructure (78) and a counter-positioning/holding formation (103) that meshes or can be caused mesh with the positioning/holding formation (94) is provided on the device carrier (14) for presetting a conveying position of the device carrier (14) on the superstructure (78).

A pallet sled includes an upper frame including spaced-apart arms adapted to receive feet of a pallet therebetween. A lower frame supports the upper frame. A plurality of pivotable arms connect the lower frame to the upper frame. A handle is pivotably connected to the lower frame and the upper frame, such that pivoting the handle selectively raises and lowers the upper frame relative to the lower frame.

A modular platform system includes a plurality of tiles, legs, beams, and brackets. Peripheries of the tiles and top surfaces of the beams are configured so that the tiles can snap on to the beams, allowing for easy creation of a platform. The beams, legs, and brackets are all configured so that the beams and legs are easily connected together for platform system creation.

In one aspect, an apparatus for manipulating a sheet includes a base portion, and an elevator portion coupled to the base portion, where the elevator portion is vertically movable relative to the base portion. The apparatus also includes a tilting portion pivotably coupled to the elevator portion, where a virtual plane is parallel to the tilting portion. In addition, the apparatus includes at least one first holder and at least one second holder coupled to the tilting portion, where at least one first holder and at least one second holder oppose each other.

In the specification and drawings an accessory cart is described and shown with a base, a housing element that is connected to the base and extends upward from the base, and a platform, which is connected to the housing element with the height of the platform being automatically adjustable.

A pallet sled includes a lower frame and a plurality of wheels supporting the lower frame. An upper frame is configured to support a pallet thereon. A ratchet is configured to lift the upper frame relative to the lower frame. A handle is configured to operate the ratchet to lift the upper frame relative to the lower frame. The handle may be pivotable relative to the lower frame. The ratchet may include a gear and a pawl. The ratchet may also be configured to selectively lower the upper frame. As another option, one or more of the handle, the upper frame or the plurality of wheels are reconfigurable between an extended position and a retracted position.

A dolly apparatus, comprising a platform, a plurality of bars coupled with the platform, a handle configured to connect the plurality of bars to each other, and a plurality of casters coupled with the platform. The dolly apparatus has the versatility to accommodate various types and sizes of ladders and transports each of them from one spot to another with relative ease and minimal effort.

A modular platform system includes a plurality of tiles, legs, beams, and brackets. Peripheries of the tiles and top surfaces of the beams are configured so that the tiles can snap on to the beams, allowing for easy creation of a platform. The beams, legs, and brackets are all configured so that the beams and legs are easily connected together for platform system creation.

A parcel cart for transporting parcels comprises a substructure, with a frame mounted to and supported by the substructure. The frame defines an internal volume in which parcels are received and stored for transport. The frame also includes: a base; a first end wall; a second end wall; a first side wall; and a second side wall. To facilitate loading or unloading of the parcel cart, the frame can include at least one end wall configured to transition between an upright position and a lowered position. To facilitate autonomous transport of the parcel cart, the substructure and the frame can define a cavity for receiving a mobile robot. To avoid occlusion of the field of view of one or more cameras associated with the mobile robot, the frame can include at least one end wall that is in a non-perpendicular orientation relative to the base.

A radiography apparatus includes: an irradiator that emits radiation; a carriage portion on which the irradiator is mounted and which is capable of traveling; steering casters which are provided in the carriage portion and are connected to a steering and whose steering angle is given by an operation of the steering; free casters which are provided in the carriage portion and are not connected to the steering and whose steering angle is changed subordinately according to a direction of force applied to the carriage portion; and a switching mechanism that selectively switches between a first grounded state in which the free casters are separated from a floor and the steering casters are grounded to the floor and a second grounded state in which the free casters are grounded to the floor and the steering casters are separated from the floor.