The Des Moines Register from Des Moines, Iowa on May 4, 1970 · Page 26
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May 4, 1970

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The Des Moines Register from Des Moines, Iowa · Page 26

Des Moines, Iowa
Issue Date:
Monday, May 4, 1970
Page 26
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Page 26 article text (OCR)

2-T> 1MAY -I, 197>_ TIES MOINKS REGISTER Virus Washes Down the Drain A UTOMATIC electric health hazards in the home. That's what a scientific study by the department of -microbiology at the, University of Louisville school of-medicine revealed. The study-was under the supervision of as- sociate-professor-j-Sr-Stephen- Chapman. Among the .viruses used in the test were influenza A, mumps, herpes simplex and polio. In testing for virus removal during hand dishwashing, the contaminated dishes were washed in water at 115 degrees F., using liquid de- ;ent, and rinsed in 150- degree spray for one minute. They - were allowed - to-dra in- dry for half an hour. This is comparable to the routine followed by a good housekeeper. When dry, dishes were swabbed immediately and- tested for live virus. "Despite the fact ill dishes were sparkling clean, mumps and influenza viruses sur- vived," Dr. Chapman pointed oujU :r —_—-_i_ - .__ It was a different story with the automatic dishwashers. The machines effectively and consistently removed all detectable viruses that had been used to contaminate the dishes. The report also noted that influenza and mumps vifuses were re- moved from dishes that had been Tieavily-soiled -with-egg-yolk and lipstick that had been allowed to dry on the dishes for several hours. Best results were.ob- tained when .water* temperatures were 150 degrees or above and when detergents were added in both pre-rinse and wash cycles. Six Decades Ago Dishwasher Was Ugly and Awkward C7 •/• ' ' ' - '. • • The' 1909 Walker dishwasher was operated by a hand crank that activated three plungers in the tub. The. up and down movement of the plungers splashed water against the .dishes. AND energy are J_ among the most necessary items in a housewife's life, Theyfre also- the items that are taxed to the limit. That's why the stajf of the Ohio Agricultural Experiment Station of the -United States' Department of Agriculture concluded a dishwasher .is a necessity, not- a luxury, especially for the woman who works outside the home. This is what Dr. Elain K. Weaver and Clarice .E. Bloom reported on the subject: 1. Time Saved: .The ma- chine saves four-fifths of the time actually spent washing, rinsing and drying dishes by hand. If time taken up: by clearing the table and the kitchen surfaces is included, the machine cuts the-total time in half. 2. Costs: Purchase price and installation charges vary from around $130 to $600, and a machine will add only a few cents a day to the electric bill, slightly higher if you have the type that raises water temperature to sanitizing level;;. A djshwjsher uses S IXTY-TWO years ago you couldn't buy an automatic dishwasher. Even 30 years ago, you might not have wanted one. Of all the automatic home appliances,' the dishwasher was the slowest to catch on. In fact, 40 years after the first appliance appeared on the, market, 96 per cent of the American housewives were -still washing dishes by hand. The first automatic dishwasher, introduced in 1909 by Walker Co. and later developed by Hotpoint, sold for $50, a price considered high in an era' when eggs were about 8 cents a dozen and you could hire a maid for $2 or less a week. The first successful dishwasher was v a round tub mounted on four legs. The housewife cranked it by hand and large iron gears operated three plungers that agitated the soapy water. - Shortly before World War I, an electric motor was attached to the bottom of the tub and hand-cranked models became obsolete. INNOVATIONS fol low e d JL rapidly as the capacity of dishwashers was increased. New—and—more "efficient" washing principles were developed and a water level around eight gallons of water; hand dishwashing will use about half that amount. Cost in detergents or soaps remains about the same. 3. Performance: Dishes washed by machine were found to be more sanjitary (Note report at top of this page).. Dishes came out sparkling clean in most cases, though in a few hard-water areas, there^was a. little filming. A few items cannot be washed in the machine, such as some electric skil- . l et ?>. J^rf^ty'V KW,-skil- ••• This year's dishwasher has changed in looks and actions. The housewife simply loads the machine and dishes are automatically washed,, rinsed and dried. Portable by Hotpoint can be converted to a built-in; indicator gauge was added to tell the housewife just how much water was in the tub. The advent of detergents, first used in 1919, brought about other changes and solved some of the problems of early dishwashing, such as film on glasses and inefficient cleaning of plates. An impeller and direct- drive' motor were teclu_ nological improvements. The early models had many cast iron parts and therefore were extremely heavy. A hoist was required when a dishwasher was installed in the kitchen. In the 1920's the combination dishwasher-sink was introduced. It was not until the late 1920's, that the built-in automatic dishwasher, assumed its now standard square- faced steel construction with white enameled exlerior. Portable models retained the circular tub shape for a few more years. Around 1960, manufacturers, almost as a unit, did a lot of thiiiQs to improve dishwashers. Washing action was improved; more portables were introduced; loading routines were simplified, and special cycles added to the machines. lets and plastic or wood items. ,. 4, Psychological. Value: Here's where the housewife gets her money's worth/ She can have a neat kitchen without constantly washing dishes, .since they can be tucked out of sight of the neighbor's prying eyes. The pressure to get the dishes done after dinner is re- • lieved. Mother can relax in the parlor, during this prime part of the day, while the machine does th| work, in the_ Move into the GLEAMING World of Stainless Steel Dishwashers by WASTE KING UNIVERSAL The Quality Gleams Tlvrough,\ We built what women ivant&d: NUMBER ONE REQUEST: Wash and dry spotlessly, thoroughly, safely. So * fc»U-?, unique three-way, full-width, full-depth washing teflon, and • ted Jieatlng system jnlo our dishwashers. . pat- ECOND: Spaciousness. Flexible, random . loading for cleaning up dinners. A Waste Kins Universal dishwasher has enormous ca- «* ent A CUOSE SECOND: after family dinners. pacity, adds yards of extra counter space to your kitchen during working hours. THE THIRD POINT: Women want durability. So we chose thejnaterial that SEF YOUOEAREST WASTE KING UNIVERSAL DEALER TODAY

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