US1624461A - Dishwashing machine - Google Patents

Description

April 12 1927 1,624,461

P. E. BARKER DISHWASHING MACHINE Filed Dec. 17, 1921 5 Sheets-Sheet l 33 U l JJ 2 u lll l u' L 'llllll L 'lllll Inventor 1 6247461 April 12 1927. P. E. BARKER DISHWASHING MACHINE Filed Dec. 17. 1921 5 Sheets-Sheet 3 "IIIII.

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7D 61''; van tar mt 1 Apnl 927 P. E. BARKER DISHWASHING MACHINE Filed Dec. 17. 1921 5 Sheets-Sheet 4 Inventor h www A ril 12, 1927.

1 24,461 P. E. BARKER s3 N J W Ca nventor 5 W at 7% the top of the casing. The fan 22 is sup ported upon the rotor shaft of the motor operation thereby. The integrally formed auxiliary casing 23 surrounding the fan is of a'substantially convolute form and mer into the conduit 24 which has comfan from the water in the lower part of the casing. The plate 25 is perforated, however, as indicated at 28, so as to.permit the fan; while the air after being be of va, r or air therethrough as it ii; suiied by th: fan up through the casing. The bottom of the auxiliary casing 23. is provided with the circular opening 29. The perforations in the plate also permit the drainin of any water that might be splashe thereontoa On one side and'at the upper corner portion of the upper part of the casing I have provided the detachable deflector cap which is secured in position on the casing by means of the bail 31 pivoted to the casing member at 32 and adapted to engage over the projection 83 provided on the cap. This deflector cap forms an intermediate part of the conduit which comprises the conduit sections 24 and 19,'so that when the deflector cap is secured in position, as shown in Fig. 3, continuous passage is provided for the vapor or air. This deflector cap is secured in such position during the washing operation as well as the rinsing operation, if so desired, so that the warm air and steam fro water in the casing will bunched up by the fan. Atmospheric pressure through the opening 35 causes this vapor and steam to be forced up through the wash water, a vacuum having been created above the wash water by the fan. Thus the heat ofv the water is conserved. When, however, it is desired to dry the dishes, the deflector cap is removed so that outside, comparatively dry air will by virtue of its atmospheric pressure pass through the duct 19, which'is now open to the atmosphere, and be drawn up through the casing by .the vacuum u by the discharged from the duct 24 to'theoutside atmosphere. The opening 85 maybeused also .as a means of filling the casing with water to the level indicated in Fig. 4, or

it can be filled by attaching a discharge tube connected at one end to outlet 86 and at its other. end to -a source at suflicient elevation.

M Thusthe dishes are placed upon the rack in the manner indicated inskeleto'n form in mg. 3, the lates resting upon the interme-.

diate etran 8 between the strands 9. Water is then w lied to the casing to the proper level. 1

the deflectorcap 30 sem thecured in position, the warm air and steam will be sucked u by the fan, thereby creating a vacuum a ve the water, the atmospheric pressure through opuenin 35 causing circulation of such vapor t ug the casing so as to cause agitation and aeration of the water. The passage of air up through the restricted slot in the bottom of the trough member forces the water up out of the trou h, whereupon the water from the sides of iz he casing rushes in to again fill the trough. Thus the water is swlshed from side to side and is spurted intermittently upwardly as the trough'is alternately emptied and filled. 'Upon completion of the washing operation the wash water is drained through the discharge outlet 36, provided with a suitable closure 37. Running of the fanduring the draining operation will continue to agitate the water until it is all dischar d,- and thus the grease and dirt suspen ed in the water is prevented from depositing in the casing. The dishes are then rinsed, with or without the fan, preparatory to drying.- In order to circulate fresh and comparatively dry air over the dishes. the defiectorcap 30 is removed so that outside air is drawn into the lower part of the Easing and discharges through the conuit 7 What I claim is:

1. A dish washing machine, comprising.

upper and lower casing members, the walls 0 which enclose a chamber, means in the chamber of the lower casing member for supporting the dishes, means within the chamber of the upper casing member for eli'ecting circulation of vapor or air through said casing memberaand a circulation conduit lying within the walls of said casing and extending from the u per part of the upper casing member to t e lower part of the lower casing member.

2. A dish washing machine comprising a casing for holding dishes, means inthe upperv part thereof for withdrawing air from the upper part of the casing, and a conduit communicating with the dimarge side of said ineans an open to atmosphere and com municating with the lower part of the casing for the passage of vapor or air therethrough.

3. A' dish washing machine comprising lpper and lower casing members, means in e lower casing member for supporting dishes. means in the upper casing member for efiecting circulation of va r or air through said casing members, an a conduit open' to atmosphere and extending from said means to a point in the bottoni part of the casing, thereby causing vapor or air -to be circulated u through the same. a

' g machine comprising 4. A dish ripper-and lower sections, means for formrug an air-tight oint between said sections in assembly, means for "with air from the upper part of the casing, and a discharge conduit for said means open to atmosphere and communicating with the lower part of the casing for the passage of vapor or air therethrough.

5. A dish washing machine comprising a casing for holding dishes. means in the upper; part of said casing for effecting circulation of vapor from above the washing fluid through the casing during the washing operation, including a conduit leading to the lower part of said casing, and a detachable deflector cap forming part of said conduit, whereby upon removal of said cap outside air can be circulated through the casing.

6. A dish washing machine comprising upper and lower casing members, means in the lower casing member for supporting dlshes, means in the upper casing member for effecting circulation of vapor or air through said casing members, said casing members being provided with registering conduits for such circulation from the top of said upper casing member to the lower part of said lower casing member.

7.- A dish washing. machine comprising upper and lower casing members, means in the lower casing member for supporting dishes, means in the upper casing member for effecting circulation of vapor or air through said casing members, said casing members being provided with registering conduits for such circulation from the top of said upper casing member to the lower art of said lower casing member, the condmt in said lower casing member terminating in a restricted opening for passage of air up through the casing.

8. A dish washing machine comprising a casing, a trough member in the lower portion thereof, said trough member being pro vided with a. slot through its bottom communicating with a source of air supply. and means in the upper part of the casing for effecting circulation of vapor or air through said slot so as to pass up through the casing.

9. A dish washing machine, comprising a casing, a trough member in the lower portion thereof, a dish rack removably supported upon said trough member, said trough member being provided with a slot through its bottom communicating with a source of air supply, and means in the upper part of the casing for effecting circulation of vapor or air through said slot so as to pass up through the casin 10. A dish wailing machine comprising a casing for holding dishes, means in the upper part of said casing for effecting circulation of vapor from above the washing fluid through the casing during the washing operation, including a conduit leading t the lower part of said casing, and a dotachable deflector cap forming part of said conduit, whereby upon removal of said cap outside air can be circulated through the casing, said cap being provided with an opening to atmosphere.

In testimony whereof I hereby aflix my signature.

PERCY E. BARKER.

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