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
Alexander Robertson
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 GB190506529ApublicationCriticalpatent/GB190506529A/en
6529. Roberts o n , A . March 28. Window opening and closing apparatus.-S l i d i n g sashes c for ships &c. are closed water-tigbt on the window frame by the aid of vertical b a r s d fitting loosely in channels of the sashes. The bars and the channel walls are toothed, and are simultaneously engaged by pinions i on a manually - operated worm-driven shaft.
GB190506529D1905-03-281905-03-28Improvements in Sliding Sashes for Windows.
ExpiredGB190506529A
(en)