Spraying device
Реферат: 1379182 Reciprocating pumps YOSHINO KOGYOSHO CO Ltd 6 June 1972 [10 June 1971 24 June 1971] 26390/72 Heading F1A A spraying device comprises a piston 32, Fig. 2, which is reciprocated by rotating a head member 20 splined to a member 30 connected to piston 32, conversion of rotary motion into linear motion being effected by balls 40 engaging a waveform groove 41 on member 30 and recesses 39 in casing 10, piston 32 drawing liquid from reservoir 13 via dip tube 16 and ball-valve 50 and discharging it to a storage chamber 14a via passage 33 and checkvalve 15. Head member 20 is rotated several times to charge chamber 14a, a piston 43 being moved upwardly by the liquid against a spring 35. For spraying, a button 25 is depressed to open a valve 24 to release liquid from chamber 14a via passage 44. A valve 18 admits air into reservoir 13. In Fig. 4, head member 69 is stated against the action of a spring 82 to move piston 86 on its suction stroke by the action of separate inclined grooves 91 in member 79, spring 82 then effecting the discharge stroke of piston 86 when discharge valve 24 is opened.
Liquid spraying device
Номер патента: GB1349628A. Автор: . Владелец: Yoshino Kogyosho Co Ltd. Дата публикации: 1974-04-10.