Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
Joseph Richard Parker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of GB189912062ApublicationCriticalpatent/GB189912062A/en
12,062. Parker, J. R. June 9. Keyholes, obstructing.-The sliding rod f, mounted in a suitable guide c on the key a, is adapted to be inserted, as shown in dotted lines, in the keyhole of the lock or door, to prevent the opening or picking of the lock. The rod is formed with a notch e or a projection, which, under the action of the spring g fixed to the rod or guide, engages with a corresponding projection d, or a notch, in the guide, to secure the rod in position. The rod is further secured by a set screw i.
GB189912062D1899-06-091899-06-09Improvements in or relating to Keys for Preventing the Picking of Locks.
ExpiredGB189912062A
(en)