A spreader bar including two spaced apart opposite end portions, each end portion having a first connection point for connecting a lower hoist chain thereto and a second connection point for connecting an upper hoist chain thereto, said second connection point being spaced from said first connection point towards the opposite end portion by a first predetermined distance, said predetermined distance being selected such that in use an upper hoist chain connected thereto makes a smaller angle with the longitudinal axis of the spreader bar than would an upper hoist chain connected to the first connection point.

A lock mechanism includes a snapping part and a pressing part configured to be slidably connected with a first body. The pressing part includes a pressing end and an abutting end opposite to the pressing end. The abutting end is configured to abut against the snapping part to make the snapping part engage with a second body and to lock the second body onto the first body.

A lock mechanism includes a snapping part and a pressing part configured to be slidably connected with a first body. The pressing part includes a pressing end and an abutting end opposite to the pressing end. The abutting end is configured to abut against the snapping part to make the snapping part engage with a second body and to lock the second body onto the first body.

A quick release assembly for a side roll tarp has a roll-tube coupler connected to a roll-tube for rolling and unrolling the side roll tarp. A drive coupler is connected to a shaft of a motor, the drive coupler fitting within an opening in the roll-tube coupler. The drive coupler has a first groove and second groove circumferentially around an exterior of a circular shaft below a head portion of the driver coupler. A quick release pin traverses through a pair of tangential openings in the body of the roll-tube coupler to engage the first or second grooves of the drive coupler, wherein the driver coupler is engaged with the roll-tube coupler when in the first groove allowing the motor to drive the roll-tube and disengaged from the roll-tube coupler when in the second groove allowing the roll-tube to be rotated independently of the motor.

A quick release assembly for a side roll tarp has a roll-tube coupler connected to a roll-tube for rolling and unrolling the side roll tarp. A drive coupler is connected to a shaft of a motor, the drive coupler fitting within an opening in the roll-tube coupler. The drive coupler has a first groove and second groove circumferentially around an exterior of a circular shaft below a head portion of the driver coupler. A quick release pin traverses through a pair of tangential openings in the body of the roll-tube coupler to engage the first or second grooves of the drive coupler, wherein the driver coupler is engaged with the roll-tube coupler when in the first groove allowing the motor to drive the roll-tube and disengaged from the roll-tube coupler when in the second groove allowing the roll-tube to be rotated independently of the motor.

Various embodiments of an apparatus and method for impact forming a cotter pin in a brake assembly are disclosed. In one example, an impact forming tool comprises a handle for receiving an operating force, a stationary portion and a hammer portion. The stationary portion is connected to the handle at a proximate end. An orientation pin is positioned on a distal end and two anvil pins are positioned on the stationary portion between the proximate end and the orientation pin. The hammer portion communicates with the operating force and moves linearly across the face of the stationary portion from a first position to a second position. The hammer portion has a symmetrical arcuate end, wherein a vertex of the symmetrical arcuate end is between the two anvil pins when the hammer is in the second position.

Various embodiments of an apparatus and method for impact forming a cotter pin in a brake assembly are disclosed. In one example, an impact forming tool comprises a handle for receiving an operating force, a stationary portion and a hammer portion. The stationary portion is connected to the handle at a proximate end. An orientation pin is positioned on a distal end and two anvil pins are positioned on the stationary portion between the proximate end and the orientation pin. The hammer portion communicates with the operating force and moves linearly across the face of the stationary portion from a first position to a second position. The hammer portion has a symmetrical arcuate end, wherein a vertex of the symmetrical arcuate end is between the two anvil pins when the hammer is in the second position.

A magnetic and mechanical connection device includes a connection surface provided female part with a female housing having a bottom to which bottom on the inside a first permanent magnet is attached and a top provided with a female opening. A connection surface provided male part with a male housing provided with a connection member having at least a magnetic surface and being slightly smaller than the female opening in the female part, the male part connecting magnetically with the permanent magnet. A spring biased locking pin is attached to either the connection member of the male part or the female opening of the female part. The locking pin is directed in a perpendicular direction from the insertion direction and which locking pin is interacting in a locking engagement with an opposite locking groove in the opposite part.

Embodiments of the invention provide a clevis pin arrangement for use in a tool. The clevis pin arrangement can include a clevis that includes a first and second leg with first and second apertures, respectively, a clevis pin that extends between the first and second apertures when in a closed position, and an actuator. The actuator can move the clevis pin arrangement between the closed position and an open position.

A device for releasing a panel of an aircraft, the device being configured to be secured to a support, the support having an opening and the device being attached to cover a periphery of the opening, the device comprising a panel configured to be arranged at least opposite the opening. Such a device comprises: at least two ejector members, each of the at least two ejector members comprising at least one link; and at least one control member for applying a pulling force to the at least one link.