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
Fred Genzel
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 GB190920135ApublicationCriticalpatent/GB190920135A/en
20,135. Genzel, F. Sept. 2. No Patent granted (Sealing fee not paid). Actions.-A pneumatic relay is controlled by valves 6<a>, 6<b> disposed between adjustable ported caps 2, 3 which may screw into the board 1. The valve-member 6<a> is loosely mounted on the lifter 7, and the valve-member 6<b> is fast thereon and has a button 6<c> glued to it. The duct 8<a> loading to the power pneumatic may be normally connected either to the atmosphere or to exhaust. In the former case, when air is admitted to a diaphragm connected to the lifter 7, the valves 6<a>, 6<b> are lifted, closing one annular port 4 and opening the other, thereby cutting off the connexion of the duct 8<a> to atmosphere and connecting it to exhaust, so causing the power pneumatic to collapse. The apparatus may be arranged to work by pressure instead of by suction.
GB190920135D1909-09-021909-09-02Improvements in Valves more particularly for use with Piano Players, Organs, and the like.
ExpiredGB190920135A
(en)