Protective device for instruments and locking of a

专利名称：Protective device for instruments and

locking of aircraft controls

发明人：J. Talmadge Webb申请号：US06/052148申请日：19790626公开号：US04299361A公开日：19811110

摘要：A device for locking the ailerons and elevators of an aircraft controlled by awheel-operated longitudinally shiftable and rotatable control column, and, at the sametime preventing theft of the navigational instruments and radio equipment mounted onthe instrument panel in the cockpit of the plane. The protective device takes the form ofa cover formed of two overlapping plates having an arrangement for adjusting theoverall width. The adjusted cover is mounted immediately adjacent the instrument panelby means of upper and lower clamping blocks secured about the control column in sucha manner as to prevent unauthorized movements of the column and access to theinstruments on the panel. The blocks have complementary semi-cylindrical grooves whichclamp about the control column, and one block is fixed to the cover plate while the otheris hinged to the first for ready uncoupling and coupling movements. The pair of blocksare held in clamped arrangement by a key- operated cylinder lock seated in an aperturein one block having a latch member which releasably engages a cam surface in an alignedcavity in the second block to wedgingly clamp the blocks about the control column. Oneor more slotted brackets are provided to receive edge portions of the cover and preventits being pried away from the instrument panel. The panel is also provided with an

electric alarm circuit including a microswitch abutting the installed cover and operative tosound the alarm should an unauthorized person move the cover slightly away from theinstrument panel.

申请人：YATES; AUGUST BETTS

代理机构：Berman, Aisenberg & Platt

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