A side lift spreader main beam (22) comprises a vertical carrier plate (58) having a first vertical height (H1) and being made of steel plate having a first thickness (T1); a C-beam (60) comprising a first horizontal flange (64) and a second horizontal flange (66) interconnected by a vertical web portion (68), the C-beam (60) having a second vertical height (H2) lower than the first vertical height (H1) and being made of steel plate having a second thickness (T2) thinner than the first thickness (T1), wherein the C-beam (60) defines, together with the carrier plate (58), a closed channel beam with a first flange (74) of the carrier plate (58) extending vertically from the closed channel beam; and an inclined support plate (62) welded to the carrier plate, and to an outer face of the first flange (64) of the C-beam (60) at a distance from the carrier plate (58).

An extension system for a bucket tractor includes a boom and a scaffold removably secured to a base configured to be supported with a bucket of a tractor.

An extension system for a bucket tractor includes a boom and a scaffold removably secured to a base configured to be supported with a bucket of a tractor.

The improved hydraulic system utilizes a secondary hydraulic force control circuit that changes the gripping force on the load independently of movement of the clamp arms.

The present invention relates to a machine tool (1000) for machining a workpiece (1), comprising: at least one first machine tool structure which can be moved freely on a base surface and has at least one machine tool component, and at least one second machine tool structure having at least one further machine tool component, wherein the at least one freely movable first machine tool structure, together with the at least one second machine tool structure, forms the machine tool (1000) configured for machining the workpiece (1), when the at least one freely movable first machine tool structure is positioned on the at least one second machine tool structure.

A method for operating a conveying system is provided. An overhead hoist transport (OHT) vehicle is provided, wherein the OHT vehicle includes a gripping member configured to grip and hold a carrier, and a receiver configured to receive a signal. The signal is transmitted to the receiver of the OHT vehicle. The OHT vehicle is moved toward the carrier, and the carrier is gripped by the gripping member of the OHT vehicle. A lifting force is determined based on a weight of a carrier, a number of workpieces in the carrier, or a vertical distance between the OHT vehicle and the carrier, and the lifting force is applied to the carrier.

Fork head for gripping thin objects having a main frame attached to a mobile element on a lifting vehicle; a mobile frame, with two fixed, parallel arms and a gripping arm that moves from and towards the fork arms to trap a thin object hanging between the two fork arms, said mobile frame being able to move horizontally along a transversal guide attached to the main frame; wherein the gripping arm has end portions superimposed on the two arms of the frame and has a length (L) in a transversal direction equal to or greater than a fork width (w) defined by the distance between the opposite outer edges of the two fork arms.

Fork head for gripping thin objects having a main frame attached to a mobile element on a lifting vehicle; a mobile frame, with two fixed, parallel arms and a gripping arm that moves from and towards the fork arms to trap a thin object hanging between the two fork arms, said mobile frame being able to move horizontally along a transversal guide attached to the main frame; wherein the gripping arm has end portions superimposed on the two arms of the frame and has a length (L) in a transversal direction equal to or greater than a fork width (w) defined by the distance between the opposite outer edges of the two fork arms.

A system for assembling a plurality of pre-fabricated components to form a structure comprising: a first lifting device for transporting at least one pre-fabricated component from a source to a designated site; a second lifting device for engaging the at least one pre-fabricated component at the designated site; wherein the second lifting device comprises an engagement means to engage a portion of the at least one pre-fabricated component for installation at the designated site, and wherein the engagement means is capable of moving the engaged pre-fabricated component in at least two degrees of motion, is disclosed. In some embodiments, the engagement means comprises a plurality of locks.

A system for assembling a plurality of pre-fabricated components to form a structure comprising: a first lifting device for transporting at least one pre-fabricated component from a source to a designated site; a second lifting device for engaging the at least one pre-fabricated component at the designated site; wherein the second lifting device comprises an engagement means to engage a portion of the at least one pre-fabricated component for installation at the designated site, and wherein the engagement means is capable of moving the engaged pre-fabricated component in at least two degrees of motion, is disclosed. In some embodiments, the engagement means comprises a plurality of locks.