IL37196A - Key controlled combination lock - Google Patents

Claims (1)

1. VHAT IS CLAIMED A key controlled lock a locking bolt to ba oontrollad by a having a plurality of grooves of varied p edetermined depths in a fixed base having a channel defined on one side a and at least three perforations defined within said fixed said perforations opening into tke keyway and the Channel defined in said fixed a belt control movable respeot to and connected to said bolt and movably secured within said channel and having a plurality of bolt pin receiving bores adapted to correspond to said plurality of perforations when said bolt control element is in locked a plurality of bolt pins slidably secured within said bores and a corresponding plurality driver pins having varied predetermined lengths slidably secured within said perforations that when said bolt control element is said bolt pins are dep from said bores into said perforations and said driver are biased into contact with the surface of said such that when said key inserted said said plurality of grooves of varied predetermined depths said key correspond with each of said driver pins respectively and counte each of said driver pins said belt pine to cause each juncture between each of said bolt pins and said driver pins to be positioned at the interface of belt control element and said channel for allowing said bolt cont ol element to bo moved in said channel without opposition from aaid bolt or aaid pins w thout movement of said The olaia 1 within said boroa for biasing aaid bolt against said or pina such that said bolt control oloaont la in aaid belt pins forcibly penetrate into aaid pe orations in said bass and bias aaid pina against surface of aaid keyway to any movement of bolt control in said The apparatus of claim 2 wherein aaid aana for a compression spring oaoh of aaid The combination lock of claim 1 said la a planar plata having cham ered ends and aaid grooves on surfaoe of aaid plata cooperate with aaid driver pina to determine the run of each of aaid driver pina so that whe the key inserted into the the junctu e between aaid driver pina and aaid bolt pina la eoplanar with the surface aaid bolt control element and said The apparatua of claim 1 including a lever having a operating handle ed to aaid a resi tance arm coupled to aaid bolt control element at one end and secured to the pivot end of aaid operating handle the other and an operating arm having a firat end secu ed to said pi end and a end coupled to the such that when aaid handle la aaid control element and aaid bolt are The o 1 including a lever having a handle secured to aaid a resistance coupled to bolt control element at one and secured to the pivot and of aaid handle at the and operating arm ha a first end to said pivot end and a end coupled to the such that said handle said control element and said bolt are also the apparatus as set forth claim 6 including a aeoondary bolt for look connected to tha bolt of aaid look that when the handle is moved and said bolt said secondary bolt also apparatus of claim 1 wherein said keyway baa a rectilinear opening for receiving said the as set claim 1 wherein key includes at least one abutment means defined thereon for limiting penetration of said key in the keyway such that said key may be precisely positioned within the The apparatus as set in 1 at least nine of the perforations aligned in three at least of the bolt pin receiving bores adapted to correspond to said nine perforations when the bolt control element locked and including at least nina of the bolt pins within the bores and at least nine of the driver having varied predetermined lengths slidably secured within the per The apparatus set forth in claim 1 wherein said key includes a first plurality of grooves on one end the and a second plurality of grooves on the other end of said key that said key may be inserted in the apparatus as set forth olaim 1 wherein said insufficientOCRQuality