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
GB977716A
Inventor
Charles Bryers
Cyril Henry Clayden
Alfred Milburn
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
Priority to GB977716ApriorityCriticalpatent/GB107809A/en
Publication of GB107809ApublicationCriticalpatent/GB107809A/en
E05B51/00—Operating or controlling locks or other fastening devices by other non-mechanical means
E05B51/02—Operating or controlling locks or other fastening devices by other non-mechanical means by pneumatic or hydraulic means
Landscapes
Steering Devices For Bicycles And Motorcycles
(AREA)
Tents Or Canopies
(AREA)
Gates
(AREA)
Abstract
107,809. Brygers, C., Clayden, C. H., and Milburn, A. July 11, 1916. Security indicators for door fastenings.-The end of a bolt pneumatically operated from a distance engages a curved arm 16 which moves a gravitycontrolled sector 15 to display suitable indicating words on the outside of a door.
GB977716A1916-07-111916-07-11Improvements in Means for Bolting Doors from a Distance.
ExpiredGB107809A
(en)