Bolt head lock

Abstract

Abstract A DEVICE FOR LOCKING TYPEWRITERS AND SIMILAR ARTICLES WHICH ARE ADAPTED TO BE POSITIONED IN A FIXED LOCATION ON A MOUNTING PLATFORM OR DESK COMPRISES AN INNER CYLINRICAL MEMBER WHICH INCLUDES A BORE THROUGH ITS CLOSED END WHICH IS ADAPTED TO RECEIVER A SECURING BOLT WHICH IS PROVIDED FOR ANCHORING THE ARTICLE TO THE MOUNTING LOCATION. THE HEAD OF THE SECURING BOLT IS ADAPTED TO ENGAGE OVER A LEDGE FORMED AT THE INNER END OF THE INNER CYLINDRICAL MEMBER AND THE HEAD CAN BE AFFIXED TO THE CYLINRICAL MEMBER SUCH AS BY WELDING. THE CYLINDRICAL MEMBER IS CARRIED ON A FLAT PLATE OR WASHER WHICH INCLUDES MEANS FOR FIXING IT TO THE MOUNTING BASE FOR THE ARTICLE IN A MANNER SUCH THAT IT WILL NOT ROTATE. WHEN THE LOCK IS OPENED THE CYLINDRICAL MEMBER IS EXPOSED TO PERMIT ACCESS TO THE HEAD OF THE SCREW BY A SCREW DRIVER WRENCH SO THAT IT CAN BE UNTHREADED TO RELEASE THE ARTICLE. THE INNER CYLINDRICAL MEMBER IS ADAPTED TO INTERENGAGE WITH AN OUTER CYLINDRICAL MEMBER OR LOCKING HEAD WHICH HAS AN OPENED END INTO WHICH THE INNER CYLINDRICAL MEMBER IS DIRECTED AND A CLOSED END CARRYING A KEY ENGAGEMENT FITTING. THE KEY ENGAGEMENT FITTING ACCOMMODATES A KEY WHICH MAY BE ROTATED TO SHIFT A BOLT MEMBER CARRIED BY THE OUTER CYLINDRICAL MEMBER LATERALLY TO ENGAGE IN A SLOT OF THE INNER CYLINDRICAL MEMBER AND TO THUS HOLD THE ASSEMBLY TOGETHER. THE ASSEMBLY COVERS THE BOLT HEAD SO THAT THE SECURING BOLT CANNOT BE ROTATED TO EFFECT DISENGAGEMENT FROM THE ARTICLE HELD THEREBY.

Inventors

• 👤 M Leonard Singer
• 👤 Robert M Woletz

Bibliographic Details