GB730992A - Improvements in and relating to dishwashing machines - Google Patents
Improvements in and relating to dishwashing machinesInfo
- Publication number
- GB730992A GB730992A GB27753A GB27753A GB730992A GB 730992 A GB730992 A GB 730992A GB 27753 A GB27753 A GB 27753A GB 27753 A GB27753 A GB 27753A GB 730992 A GB730992 A GB 730992A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pump
- water
- pipe
- inlet pipe
- branch
- Prior art date
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
- A47L15/22—Rotary spraying devices
- A47L15/23—Rotary spraying devices moved by means of the sprays
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
Landscapes
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Washing And Drying Of Tableware (AREA)
Abstract
730,992. Dishwashing machines. GENERAL ELECTRIC CO. Jan. 5, 1953 [Jan. 4, 1952], No. 277/53. Class 138 (1). A dish-washing machine comprises a tub 3, a dish rack 6, 6a, means 14 for introducing liquid into the tub, means 24 for directing the liquid against the dishes, a pump 16 having an inlet pipe 18 for drawing liquid from a sump portion 21 of the tub, a discharge pipe 22 from the pump to the means 24 and a drain branch 30 opening from the inlet pipe 18 intermediate the ends thereof and extending angularly from the pipe, the capacity of the pump 16 relative to gravity flow through the inlet pipe being such that, when the pump is in operation, it will prevent liquid rising to the level of the drain branch 30 and the construction and arrangement being such that when the pump is stopped the liquid will rise to the level of the drain branch 30 and discharge therethrough, sufficient liquid being retained in the inlet pipe 18 or in the sump to prime the pump for subsequent operation. In the machine, Fig. 1, the tub 3, has a front opening door 4; the dish rack 6, 6a can be rolled over the door when open into the tub to be supported therein on rails 9; the sump 21 is covered by a screen 33 and the water inlet means 14 communicates by a pipe 12 with a solenoid operated water valve 10. A timermotor driven sequence switch 15 controls the dish-washing cycle in known manner, but the machine may be manually controlled. The sump 21 connects with the inlet pipe 18 of the pump 16 driven by a motor 17, and the discharge pipe 22 of the pump connects by a pipe 23 with the means 24 in the form of a rotary water reaction operated spray device having arms 26 provided with upper and lower spray heads 25. The device 24 is disposed between upper and lower portions 6a and 6, of the rack. The drain branch pipe 30 extends substantially at right-angles from the pipe 18 and connects with a drain trap 31 through a check-valve 32 which is optional. When the pump is operating, having already been primed from the previous operation, it discharges water through the device 24 faster than water enters the pipe 18 and hence there is no build-up of water to the level of the branch 30 and no water is lost to the drain. In two other embodiments the rotary spray device is situated below the dish rack and the pump discharge pipe passes through the screen over the sump. The first of these other embodiments discloses a pump and pump inlet pipe within an enlarged sump, the inlet pipe extending downwardly therein with its open end near the bottom of the sump and with the drain branch extending outwardly from the vertical portion of the pump inlet pipe. In a further embodiment the drain branch slopes downwardly towards the pump inlet pipe so that when the pump is operating there is an aspiration effect within the branch to positively prevent entry of water into the branch. Another embodiment discloses a drain branch sloping downwardly away from the pump inlet pipe and provided with a lip projecting into the inlet pipe so that when the pump is operating some water is bled through the drain branch. During this operation water will be introduced to the tub through the fitting 14 to make up for the loss of water through the drain branch.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US26487352 US2751917A (en) | 1952-01-04 | 1952-01-04 | Dishwashing machine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB730992A true GB730992A (en) | 1955-06-01 |
Family
ID=23007967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27753A Expired GB730992A (en) | 1952-01-04 | 1953-01-05 | Improvements in and relating to dishwashing machines |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1074021A (en) |
GB (1) | GB730992A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3491780A (en) * | 1967-12-11 | 1970-01-27 | Maytag Co | Self-cleaning filter for dishwasher |
WO1996032049A1 (en) * | 1995-04-12 | 1996-10-17 | White Consolidated Industries, Inc. | Dishwasher with downward opening pump inlet mouth |
CN109998436A (en) * | 2019-02-25 | 2019-07-12 | 佛山市百斯特电器科技有限公司 | A kind of dish-washing machine and its control method of individual palpation key operation |
-
1952
- 1952-12-24 FR FR1074021D patent/FR1074021A/en not_active Expired
-
1953
- 1953-01-05 GB GB27753A patent/GB730992A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3491780A (en) * | 1967-12-11 | 1970-01-27 | Maytag Co | Self-cleaning filter for dishwasher |
WO1996032049A1 (en) * | 1995-04-12 | 1996-10-17 | White Consolidated Industries, Inc. | Dishwasher with downward opening pump inlet mouth |
US5630437A (en) * | 1995-04-12 | 1997-05-20 | White Consolidated Industries, Inc. | Dishwasher with downward opening pump inlet mouth for improved operation |
CN109998436A (en) * | 2019-02-25 | 2019-07-12 | 佛山市百斯特电器科技有限公司 | A kind of dish-washing machine and its control method of individual palpation key operation |
Also Published As
Publication number | Publication date |
---|---|
FR1074021A (en) | 1954-09-30 |
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