Spare wheel locking device

Claim 1

IN COMBINATION WITH A MOTOR VEHICLE, A SPARE WHEEL PROVIDED WITH AN OPENING DISPOSED CENTRALLY THEREOF, A TIRE CASING EXTENDING ABOUT THE PERIMETER OF SAID WHEEL, A SUPPORTING BLOCK ON ONE SIDE OF SAID WHEEL AND FIXEDLY ATTACHED TO SAID VEHICLE AND ADAPTED TO ENGAGE THE SIDE OF SAID TIRE CASING, A BOLT EXTENDING THROUGH SAID OPENING FROM ONE SIDE TO THE OTHER SIDE OF SAID WHEEL WITH THE PORTION ADJACENT ONE END EXTENDING BEYOND THE OTHER SIDE OF SAID WHEEL, A NUT IN THREADED ENGAGEMENT WITH SAID ONE END PORTION, A LOCKING DEVICE COMPRISING A PLATE MEMBER HAVING A SLOT EXTENDING INWARDLY FROM ONE END THEREOF AND TERMINATING AT A POINT SPACED FROM THE OTHER END THEREOF, A HEAD ON SAID ONE END OF SAID PLATE MEMBER STRADDLING SAID SLOT, SAID HEAD BEING INSERTABLE THROUGH SAID OPENING SO THAT THE PLATE MEMBER EXTENDS IN AN UPWARDLY SLOPING DIRECTION WITH SAID PORTION OF SAID BOLT SLIDABLY RECEIVED IN SAID SLOT AND BEING SWINGABLE FROM THE INSERTED POSITION TO AN UPSTANDING POSITION IN WHICH SAID HEAD BRIDGES THE OPENING AND ENGAGES THE WALLS OF THE OPENING WITH THE FRONT FACE ABUTTING SAID NUT, SAID HEAD WHEN SWUNG TO THE UPSTANDING POSITION CAUSING SAID TIRE CASING TO BEAR AGAINST SAID SUPPORTING BLOCK, AND RELEASABLE LATCH MEANS ON SAID HEAD ENGAGEABLE WITH THE WALL OF SAID WHEEL OPENING FOR HOLDING THE PLATE MEMBER IN THE UPSTANDING POSITION.