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
William John Mellersh-Jackson
Original Assignee
William John Mellersh-Jackson
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 William John Mellersh-JacksonfiledCriticalWilliam John Mellersh-Jackson
Application grantedgrantedCritical
Publication of GB191308694ApublicationCriticalpatent/GB191308694A/en
8694. Jackson, W. J. Mellersh-, [Acolian Co.]. April 12. Combined with gramophones or kinematographs; tuneshects. - Means for obtaining synchronism in operation between two instuments such as automatic musical instruments, phonographs, kinematographs, &c. comprise two indicators to show the rate of movement of the machines and means for regulating the speed of one of them. In the example shown, the phonograph 9 is driven at a constant speed by the spring motor 11 and the tune-sheet 4 is driven by a motor 16 having a regulating-lever 7. A disk 14 is geared with the phonograph and carries marks 15 at regular intervals on its periphery. The sheet 4 has similar marks x and the lever 7 is adjusted until the marks 15, x move past the pointers 17, 18 at the same times.
GB191308694D1913-04-121913-04-12Improvements in or relating to Reproducing Machines.
ExpiredGB191308694A
(en)