Improvements in Air Pumps or Blowers.
Реферат: 965. Davies, J. Jan. 14. Check valves. - An inlet valve for a hand pump or blower fitted in a casing n provided with an apertured cover o is shown in Fig. 3. The valve consists of a leather, rubber, or like disk disposed between metal plates w, and normally held against an annular seating q by a spring t, the valve spindle being guided in yokes r. In the form shown in Fig. 6, the disk v normally covers apertures in the end of the casing, and is loosely mounted together with a single metal plate w on a stepped spindle t secured to the end of the casing.
Improvements in or relating to reciprocating pumps or the like
Номер патента: GB568781A. Автор: . Владелец: Silentbloc Ltd. Дата публикации: 1945-04-19.