The invention provides a compact pipe handling trailer for a drilling or service rig. The pipe handling trailer includes a deck having a raised frame and an extended horizontal frame. A trough is pivotally housed within the extended horizontal frame, the trough having a first end and a second end. A first piston/cylinder assembly is operably coupled to the first end of the trough; a second piston/cylinder assembly is operably coupled proximal to the second end of the trough. An operating means for the pipe handling trailer is provided within the raised frame of the deck. The pipe handling trailer is transportable and is attached to a trailer on a common axle. A number of retractable downriggers are provided on the deck to position the pipe handling trailer firmly to the ground.

The invention provides a compact pipe handling trailer for a drilling or service rig. The pipe handling trailer includes a deck having a raised frame and an extended horizontal frame. A trough is pivotally housed within the extended horizontal frame, the trough having a first end and a second end. A first piston/cylinder assembly is operably coupled to the first end of the trough; a second piston/cylinder assembly is operably coupled proximal to the second end of the trough. An operating means for the pipe handling trailer is provided within the raised frame of the deck. The pipe handling trailer is transportable and is attached to a trailer on a common axle. A number of retractable downriggers are provided on the deck to position the pipe handling trailer firmly to the ground.

A method for pivoting a travel unit on a machine frame of a road milling machine between an outer end position and an inner end position offset toward a center of the machine relative to the outer end position, the road milling machine having a travel mechanism with multiple travel units, of which at least one travel unit is height-adjustable via a lifting column, comprising the steps of positioning a support foot mounted on the machine frame in a ground contact position to support the machine frame, lifting the travel unit, pivoting the travel unit between the outer end position and the inner end position, lowering the travel unit, and positioning the support foot in a stowed position.

An assembly for correcting an attitude of at least a selected portion of a structure, where the assembly includes a controller affixed to a structure operatively coupled with one or more jacks operable to change the attitude of the structure; and a remote device configured to communicate wirelessly with the controller to change the attitude of a selected portion of the structure. Also disclosed is a method for adjusting an attitude of a movable structure.

An assembly for correcting an attitude of at least a selected portion of a structure, where the assembly includes a controller affixed to a structure operatively coupled with one or more jacks operable to change the attitude of the structure; and a remote device configured to communicate wirelessly with the controller to change the attitude of a selected portion of the structure. Also disclosed is a method for adjusting an attitude of a movable structure.

An assembly for correcting an attitude of at least a selected portion of a structure, where the assembly includes a controller affixed to a structure operatively coupled with one or more jacks operable to change the attitude of the structure; and a remote device configured to communicate wirelessly with the controller to change the attitude of a selected portion of the structure. Also disclosed is a method for adjusting an attitude of a movable structure.

An apparatus is mountable on a truck or trailer bed for lifting industrial or agricultural spools for transport. The apparatus includes a pair of vertically pivotable lifting members, each one of the pair of lifting members having a distal end. A pair of lifting pins are mounted to a distal end of a corresponding lifting member. A drive system is operably connected to the pair of vertically pivotable lifting members whereby the pair of lifting pins engage a hole of a spool and the spool is lifted with the vertically pivotable lifting members by a drive system.

An apparatus is mountable on a truck or trailer bed for lifting industrial or agricultural spools for transport. The apparatus includes a pair of vertically pivotable lifting members, each one of the pair of lifting members having a distal end. A pair of lifting pins are mounted to a distal end of a corresponding lifting member. A drive system is operably connected to the pair of vertically pivotable lifting members whereby the pair of lifting pins engage a hole of a spool and the spool is lifted with the vertically pivotable lifting members by a drive system.

The invention concerns a system for immobilizing a mobile device, such as a medical assistance robot, comprising: a linkage mechanism connecting at least three feet to one another and intended to be fixed to the chassis of the mobile device, said linkage mechanism being adapted to drive the feet sliding in respective guides intended to be fixed to the chassis of the mobile device, an actuator connected to the linkage mechanism so as to move the feet between a position bearing against the floor in which the immobilization system is able to immobilize the mobile device and a retracted position in which the immobilization system is able to release the mobility of the mobile device.

The invention relates to a concrete pump, comprising: —a frame; —a supporting leg, the supporting leg having a supporting foot, the supporting foot being extensible relative to the supporting leg; and—a drive for driving a movement of the supporting leg relative to the frame. A camera image of a hazard zone around the supporting leg is produced by a monitoring sensor. The drive is controlled by means of a remote control. The data information is transferred to the remote control via an interface. The invention also relates to a method for supporting a concrete pump. On the basis of the received data information, it can be determined, by means of the remote control, whether the movement of the supporting leg causes a hazard.