Device for derivation of temporary force for maintaining a displayable appendix in its stored position on a space vehicle

Abstract From the Canadian patent

A spreadable pivotal arm linked to the structure of a space vehicle movable about an articulation axis from a stored position along the structure of the space vehicle to a display position by a control mechanism with abutments on the appendix and on the structure of the space vehicle so distributed and located as to prevent warping or distortion of the articulation axis and the control mechanism by exerting upon the arm bending prestresses which are reduced near the articulation axis to a pure prestress torque tending to cause the arm to move to the display position and temporary forces obtained from the use of the abutments to hold the arm in the stored position during launch of the space …