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
Charles Raleigh
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 GB189805773ApublicationCriticalpatent/GB189805773A/en
5773. Raleigh, C. March 9. Drawings to Specification. Signals, electric-lamp.-Relates to improvements on the invention described in Specification No. 17,806, A.D. 1897, in which letters and indicators &c. for advertising or signalling are formed by grouping electric lamps, which are automatically lighted in a certain order by an arrangement of contacts. In the present invention, the contacts which are common to several letters &c. are eliminated, and those lamps which occur in a certain letter &c. are coupled together. Initial letters &c. may be given prominence by using coloured lamps or by other means, and such letters &c. may be independently lighted. The switches may consist of bands or discs in which there is a perforated insulating-surface on one side and a conducting- surface on the other, or of a cylinder having removable contacts on its surface or on a sleeve thereon.
GB189805773D1898-03-091898-03-09Improvements in Advertising by Incandescent Lamps or Indicators.
ExpiredGB189805773A
(en)