Abstract: A speed crank locking device automatically secures a hand crank in its operative position to an input shaft of a gearing mechanism, with the locking device being easily disengaged to move the crank from its operative position to a stored position following rotation of the crank in the operation of the mechanism, the locked device also holding the crank in the stored position.

Abstract: A trailer landing gear sand shoe is provided with three surface areas that support the landing gear and trailer and avoid damaging the ground surface supporting the sand shoe should the trailer shift forwardly or rearwardly. The novel construction of the landing gear sand shoe has forward and rearward peripheral rims that reinforce the three surface areas.

Abstract: A speed crank locking device automatically secures a hand crank in its operative position to an input shaft of a gearing mechanism, with the locking device being easily disengaged to move the crank from its operative position to a stored position following rotation of the crank in the operation of the mechanism, the locked device also holding the crank in the stored position.

Abstract: A secured crank locking device automatically secures a hand crank in its operative position to an input shaft of a gearing mechanism, with the locking device being easily disengaged to move the crank from its operative position to a stored position following rotation of the crank in the operation of the mechanism.

Abstract: A landing gear assembly for supporting a trailer. The landing gear assembly having first and second legs and a connecting member. Each leg is configured to selectively extend and retract in length. The connecting member operatively connects the first and second legs and is rotatable about an axis relative to the trailer and is axially movable between a first position and a second position. The first and second legs are each configured to extend in length a first amount per revolution of the connecting member about the axis of the connecting member when the connecting member is in the first position. The first and second legs are each configured to extend in length a second amount per revolution of the connecting member about the axis of the connecting member when the connecting member is in the second position. The first amount is greater than the second amount.

Abstract: A landing gear assembly for supporting a trailer. The landing gear assembly having first and second legs and a connecting member. Each leg is configured to selectively extend and retract in length. The connecting member operatively connects the first and second legs and is rotatable about an axis relative to the trailer and is axially movable between a first position and a second position. The first and second legs are each configured to extend in length a first amount per revolution of the connecting member about the axis of the connecting member when the connecting member is in the first position. The first and second legs are each configured to extend in length a second amount per revolution of the connecting member about the axis of the connecting member when the connecting member is in the second position. The first amount is greater than the second amount.