Patent GB-681321-A (GB)
Title: Dish washing apparatus
IPC: A47L17/00
Filed: 1950-07-25
Abstract: 681,321. Dishwashing apparatus; reservoir brushes. MANVILLE, C. J. July 25, 1950 [Aug. 2, 1949], No. 18611/50. Classes 19 and 138 (i). A dishwashing apparatus includes a chamber for receiving water under pressure, a discharge spout therefor, a detergent reservoir associated with the chamber, a flexible dual passage hose structure including a tube connected with the chamber and a tube connected to the reservoir which tubes and hose terminate in a manipulating handle carrying a brush and means whereby water may be delivered to the spout or water or detergent mixed with water may be supplied to the brush. The apparatus includes a masking shell 10, Fig. 3, encasing a hot and cold water mixing chamber 23 and a detergent reservoir 21, a swivellable spout 13 communicating with the chamber 23 and a divertor valve control 15 for the purpose described below. The above assembly is mounted over a sink or the like. The chamber 23 and reservoir 21 are connected to separate tubes 47, 48 of a dual passage flexible hose, Fig. 2, which hose and its tubes terminate in a manipulating handle 18, Fig. 4, carrying a fountain brush. As shown in Fig. 2, the chamber 23 has hot and cold water supply branches 16a, 17a connected through valves to supply mains, a riser pipe 24 connected to the spout 13, the stem 25 and dual surfaced valve 26 of the control 15 which are urged downwardly by a spring 28, and a screw-in plug like member 30 having a bore 31 in communication with the water tube 47. The member 30 has fitted therein a valve member 42 having an upper valve seat 42a co-operable with the lower surface of the valve 26, a screen 44 and a lower open stem portion 43. The member 30 is also provided with an air vent 33 and surrounding the stem 43 and seatable on a gasket 34 around the vent 33 is a vacuum breaker valve 45-46. Surrounding the member 30 is a member 35 forming an annular chamber which chamber communicates by a transverse passage 41 with the bore 31 and by a port 37 with the water tube 47. The tube 48 connects by a pipe 49, Fig. 2, to the reservoir discharge 22. This discharge connects with a detergent feed tube 80, having .a restricted opening 81 below the effective level of the detergent and an upper end 82 above the said level and vented to atmosphere. Within the handle 18 the tubes 47, 48 connect to tubes 54, 55 of a fixture 53 provided, with a through tube 57 connected with the tubes 54 and 47, and an angled passage 59 controlled by a needle valve 58 and connecting the tubes 48, 55, with the through tube 57. The member 53 is provided with opposed slots 53a which allow of vertical sliding movement of a hanger connected at its lower end to the valve 58. At its upper end the hanger is connected to a push button 61 on the handle 18 and is urged upwardly by a spring so that communication between the pipes 48, 55, passages 59 and 57 is normally cut off. The handle 18 is also provided with a tube 19 terminating in a threaded plate 64 to which is secured a bayonet socket attachment, screens 67, 69 and their associated washers. Detachably connected to the bayonet socket by pins 76 is an annular brush head 74 provided with an annularly arranged series of brush bristles 77. The brush head is provided with an outwardly extended boss portion 79 with the series of sockets for the bristles. This arrangement of brush head is such that when the brush is pressed forcibly against an article to be cleaned the boss 79 will bear directly thereon and prevent the bristles from being too sharply bent and thereby fractured. With the control 15 in its lower position the operation of the apparatus is effected as follows. The hot and cold water valves (not shown) are turned on and adjusted. to regulate the temperature of the water discharging from the spout 13. The control 15 is then raised manually so that the upper surface of the valve 26 seats on a valve seat 27 on the riser tube 24 to cut off delivery of water to the spout, the pressure of the water in the chamber retaining the valve in this upper position. Water now enters the bore 31 through valve stem 43 to cause the closing of the vent 33 by the valve 45-46 and to pass through passage 41, to the annular chamber around the member 30 and port 37 to the tube 47, tube 54 and tubes 57 and 19 to the brush. If the button 61 is now depressed the needle valve 58 is moved downwardly by the hanger and communication is established between the angled passage 59 and the tube 57. Detergent is then sucked from the tube 48 into the tube 57 by venturi action due to the passage of water therethrough. Air is also drawn through the pipe 48 from the vent 82 and results in aerated detergent mixed with water being delivered to the brush. When the button 61 is released water alone is again delivered to the brush. In event of a partial vacuum being formed in the chamber 23, the valve 45-46 lifts to seal the end .of the stem 43 to cut off communication between the brush and chamber and at the same time allows the hose to drain through the vent 33.