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
GB3090421A
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.)
DAVID THOMAS CUTBILL
Original Assignee
DAVID THOMAS CUTBILL
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 DAVID THOMAS CUTBILLfiledCriticalDAVID THOMAS CUTBILL
Priority to GB3090421ApriorityCriticalpatent/GB178387A/en
Publication of GB178387ApublicationCriticalpatent/GB178387A/en
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
Landscapes
Structure Of Receivers
(AREA)
Abstract
178,387. Roberts, A. E., and Cutbill, D. T. Jan. 25, 1921. Sound magnifying and directing appliances. - A gramophone horn of curved shape, as shown, and made of paper, preferably reinforced by gauze, is formed in two sections A, B joined together by suitable catches D provided upon the rim portion C. The open end may have a beading of wood, leather, paper, or metal. The small end carries a ferrule for engagement with a socket.
GB3090421A1921-01-251921-01-25Improvements in or relating to trumpets for gramophones
ExpiredGB178387A
(en)