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Enjoy Wonderful New Dishwashing Convenience with your RCA Whirlpool Portable Dishwasher


Published by Whirlpool in 1958-- Now this is nice and rare, it's the full owners manual to a D&M made Whirlpool Portable Dishwasher. Full instructions for preparing the dishes, loading and operating the dishwasher.

Number of Pages: 16
File Size: 12mb
Download Fee: $4.99

  Add Enjoy Wonderful New Dishwashing Convenience with your RCA Whirlpool Portable Dishwasher to cart
Please note that all publications presented here at Automatic Ephemera are on average between 35 and 85 years old. This information is presented as a educational/historical reference on vintage products of the past. Any trademarks or brand names appearing on this site are for nominative use to accurately describe the content contained in these publications. The associated trademarks are the sole property of their registered owners as there is no affiliation between Automatic Ephemera and these companies. No connection to or endorsement by the trademark owners is to be construed.


Review Selections & Checkout

Here are the 25 most recent documents added to the library...
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Thumbnail Image of Download 1970 Blackstone Automatic Washer Service Manual
Complete service manual to the 1970 line of Blackstone washers.

Models include: BA-502, BA-702, BA-902.
Automatic Washers
Published by:
Blackstone
1970 37 18mb $5.99
Introductory Price of $3.99


ends in:
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Thumbnail Image of Download 1956 Frigidaire Imperial and Deluxe Automatic Washer Brochures
Here are beautiful brochures from 1956 for Frigidaire's Imperial Unimatic and Deluxe Pulsamatic automatic washers. Full images and specifications are included.

Unimatic Imperial Model WI-56
Pulsamatic Deluxe Model WD-56
Automatic Washers
Published by:
Frigidaire
1956 4 4mb $5.99
Introductory Price of $3.99


ends in:
6 days
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Thumbnail Image of Download 1955 General Electric Laundry Brochures
1955 was a big year for General Electric laundry appliances. Both the Filter-Flo system was introduced on their top-loading automatic washers as well as their first washer/dryer combo was introduced. These are beautifully illustrated brochures with full specifications included.

Models: Washer: WA-750M, Dryer: DA-623M and Washer/Dryer Combo: WD-660M.
Automatic Washers & Dryers
Published by:
General Electric
1955 12 11mb $5.99
Introductory Price of $3.99


ends in:
6 days
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Thumbnail Image of Download Electrical Merchandising Magazine - June 1953
Electrical Merchandising is a fun magazine to read for any collector or enthusiast of vintage appliances, electronics and other vintage home products. This highly entertaining magazine covered the retail sales and merchandising areas of Major Appliances, Small Appliances, Small Electrics, Radios, Televisions and other electric home products from the mid-20th century. This was the Life and Look Magazine of the appliance world, in the same large size 10x13 format.


Trade Publications
Published by:
Electrical Merchandising
1953 210 105mb $12.99
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Thumbnail Image of Download 1959 General Electric Automatic Washer Brochure
Here is the complete brochure showing off the top of the line 1959 models of the GE automatic washer.

Models: WA-9505 and WA-9505S (suds-saver model)
Automatic Washers
Published by:
General Electric
1959 4 9mb $5.99
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Thumbnail Image of Download 1965 General Electric Washer and Dryer Brochures
Here are beautiful brochures highlighting the 1965 line of GE Washers and Dryers. Images and full specifications for each model included.

Models include: WA-1250A, DA-1220A, WA-750A, DA-820A, WA-650A, DA-620A, and the Hi-Speed Gas Dryer: DG-4920A
Automatic Washers & Dryers
Published by:
General Electric
1965 14 29mb $7.99
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Thumbnail Image of Download 1960 General Electric Home Laundry Product Man
1960 General Electric Home Laundry Service Manual covering Automatic Washers, Dryers and Combination Washer/Dryers.

GE's Product Man Service Manuals were produced monthly to keep service personnel up to date with new products, appliance specifications, appliance service instructions, troubleshooting procedures, older product repair and parts changes, installation instructions, customer complaints and recommendations, testing procedures, tools for repairs, wiring diagrams, timer charts, appliance history and evolution and other important information regarding their appliances.
Automatic Washers & Dryers
Published by:
General Electric
1960 48 27mb $5.99
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Thumbnail Image of Download 1956 Washer Service Instruction Film Narrative and Service Manual
Here are two complete Kelvinator automatic washer manuals into one .pdf file. The first is the narrative to the "Service Instruction Film-Strip" on Installation and Disassembly. The second part is the complete Service Manual and Parts Guide to all 1956 Kelvinator automatic washers.


Automatic Washers
Published by:
Kelvinator
1956 91 68mb $5.99
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Thumbnail Image of Download 1976 Frigidaire Dishwasher Service Manual
Here is the comprehensive service manual to all 1976 Frigidaire automatic dishwashers, both built-in and portable models.

Models include: DWU-2, DWU-3, DWU-4, DWU-5
DWM-2, DWM-3, DWM-4, DWM-5.
Dishwashers
Published by:
Frigidaire
1976 68 40mb $5.99
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Thumbnail Image of Download 1974 Frigidaire Touch-and-Cook Electric Range Service Manual
Here is the complete service manual to Frigidaire's first digital touch-pad electric Range!

Full specifications, service and troubleshooting sections included.

Models include: RCIE3-39CDW and RCIE-39CDW.
Ranges/Stoves
Published by:
Frigidaire
1974 42 32mb $7.99
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Thumbnail Image of Download 1965 Philco Duomatic Washer-Dryer Brochures
Here are brochures for the entire 1965 line of Philco Duomatic Combination Washer-Dryers. Full images and specifications and machine price-list included. Special bonus, 1965 Philco gas dryers brochures are also included at the end of the document.

Duomatic Combo Models include: CE-7F8, CG-7F8, CE-7F6, CG-730, CE-730.

Dryers: DG-6F8, DG-6F4, DG-6F3, DG-6F2.
Combination Washer/Dryers
Published by:
Philco
1965 19 37mb $5.99
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Thumbnail Image of Download 1966 Philco Duomatic Washer-Dryer Brochures
Here are brochures for the entire 1966 line of Philco Duomatic Combination Washer-Dryers. Full images and specifications and machine price list included.

Models include: CE-7G8, CG-7G8, CE-7G6.
Combination Washer/Dryers
Published by:
Philco
1966 12 17mb $5.99
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Thumbnail Image of Download 1957 Philco-Bendix Duomatic Washer-Dryer Owners Manuals
Here is the complete owner's manual and operating/use and care guide to all top-of-the-line 1957 Philco-Bendix combination washer-dryers. Model: CGR-C.


Combination Washer/Dryers
Published by:
Bendix
1957 40 45mb $7.99
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Thumbnail Image of Download Easy Holiday Automatic Washer Model AEG Service Manual
This is the service manual supplement created specifically for the bottom of the line washer model AEG.


Automatic Washers
Published by:
Easy
1961 26 18mb $5.99
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Thumbnail Image of Download Easy Velva-Power Automatic Washer Model Transmission Service Manual
This is the comprehensive service manual created specifically for servicing Easy's new Velva-Power transmission when it first introduced. The Velva-Power transmission was Easy's own design when they moved away from using a Beam style tranmission that was so common in Speed Queen and other brands of solid-tub automatic washers.


Automatic Washers
Published by:
Easy
1961 20 13mb $5.99
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Thumbnail Image of Download 1966 Maytag Lets Talk Service
Here every Maytag service bulletin from 1966. These fact-packed bulletins are showing off the new line of Maytag automatic washers produced starting in 1966.

These fact-packed bulletins report model changes, wash and dry cycle changes, service tips, new products being introduced, new parts, reports from the field, etc. Washers and dryers are both covered.
Automatic Washers & Dryers
Published by:
Maytag
1966 63 44mb $7.99
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Thumbnail Image of Download 1964 General Electric Washer and Dryer Brochures
Here are beautiful brochures highlighting the 1964 line of GE Washers and Dryers. Images and full specifications for each model included.

Models include: WA-1250Y, DA-1220Y, WA-950Y, DA-920Y, WA-805Y, DA-820Y, WA-650Y, DA-620Y, WA-550Y, DA-520Y.
Automatic Washers & Dryers
Published by:
General Electric
1964 18 36mb $7.99
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Thumbnail Image of Download 1961 General Electric Combination Washer-Dryer Brochures
Here is the complete brochure showing off the 1961 models of the GE combination washer/dryer.

Models: WD-860V, WD-560D.
Combination Washer/Dryers
Published by:
General Electric
1961 4 9mb $5.99
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Thumbnail Image of Download 1984 Maytag Dishwasher Service Manual
Here is the comprehensive service manual to all Maytag Jet-Clean Dishwashers from the early and mid 1980s.

Models Include:
"00 Series": WU-100, WU-WC300, WU-500, WU-WC-700, WU-900
"01 Series": WU-101, WU-WC301, WU-501, WU-WC-701, WU-901
"02 Series": WU-102, WU-WC302, WU-502, WU-WC-702, WU-902
Microprocessor Model: WU1000

Full troubleshooting, cycle-charts, schematics and servicing information is included.
Dishwashers
Published by:
Maytag
1984 213 103mb $7.99
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Thumbnail Image of Download Maytag Automatic Washer model A212 Operating Instructions
Here is the complete Operating Instructions manual included with all Maytag A212 washers.


Automatic Washers
Published by:
Maytag
1983 8 7mn $5.99
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Thumbnail Image of Download 1962-1987 KitchenAid General and Service Bulletins
Here is a collection of the majority of KitchenAid appliances General Bulletins and Service Bulletins. The majority of information concerns dishwasher with a bit of disposer and trash compactor information included as well.


Dishwashers
Published by:
KitchenAid
1987 266 147mb $7.99
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Thumbnail Image of Download Westinghouse Terrace-Top Range Owners Manuals
Here is a set of owners manuals for several Westinghouse Terrace-Top Range in the 1960's.

Models include: NTE3B, NTE3C, NTE3D, KTE3C, KLD30, KTB30A.
Ranges/Stoves
Published by:
Westinghouse
1966 48 34mb $7.99
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Thumbnail Image of Download 1973 General Electric Automatic Washer Technical Manual
Here is the complete technical manual for all 1973 General Electric automatic washers.

Sections include: Timer, Schematics, Select Switches, Water System, Drive System, Other Components, Cabinet Construction, Suspension system, Installation, Service Practices, Use & Care, Washability, Portable models.

Models covered:
18lb Washers: WWA9508P, WWA9500P, WWA9400P, WWA9300P, WWA8508P, WWA8500P, WWA8428P, WWA8420P, WWA8408P, WWA8400P, WWA8375P, WWA8364P, WWA8360P, WWA8305P, WWA8330P, WWA8314P, WWA8310P, WWA8300P, WWA8000P

14lb Washers: WWA7400P, WWA7350P, WWA7300P, WWA7050P, WWA7060P, WWA7030P, WWA7000P, WWA5500P, WWA5400P, WWA5000P

Portable Washers: WWP1020P, WWP1023P, WWP1150P, WWP5300P
Automatic Washers
Published by:
General Electric
1973 206 111mb $7.99
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Thumbnail Image of Download 1963 Philco Automatic Washer Brochures
Here are some beautiful brochures showing off the 1963 line of Philco automatic washers.

Pages contain full description of features, images of each model, full control panel views of each model and complete specifications.

Models include: W-236, W-234, W-232, W-231, W-233V, W-231V.
Automatic Washers
Published by:
Philco
1963 17 43mb $7.99
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Thumbnail Image of Download 1963 Philco Duomatic Combination Washer-Dryer Brochures
Here are some beautiful brochures showing off the 1963 line of Philco Duomatics, their combination washer-dryer line. Both electric and gas models are shown.

Pages contain full description of features, images of each model, full control panel views of each model and complete specifications.

Models include: CE-736, CG-736, CE-734, CE-730, CG-730, CE-730U.
Combination Washer/Dryers
Published by:
Philco
1963 17 41mb $7.99

25 Random Items from the Library
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Thumbnail Image of Download Maytag Gyrafoam Aluminum Washer Brochure
This is one of the earliest pieces of washer sales literature history I have seen. It is a brochure produced in the mid 1920s selling the Maytag "Gray Ghost" washer. This fascinanting brochure was made only two years after Maytag introduced the first agitator in 1922. Its in color no less and printed on thick 8.5 x 11 inch paper, which must have been very expensive to produce in those days. A must for any early washing machine enthusiast.


Wringer Washers
Published by:
Maytag
1924 16 14mb $7.99
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Thumbnail Image of Download Plan a Carefree Kitchen with THERMADOR - 1957
Here is a whimsical brochure showing off Thermador cooking appliances of the mid 1950's. L-shape, U-shape, or straight-line ... these separate cooking units, originated by Thermador, save steps, eliminate waste motion, add beauty and pleasure to kitchens. They're a favorite of architects because they make it possible to plan every detail to suit just you. oven and high speed electric units give you the fastest, most convenient cooking of ail ... the advantages of electricity help keep your kitchen safe, clean and cool the year 'round. The lifetime stainless steel surfaces blend with any decorative scheme or building material ... make cleaning easy ... stay spotless with minimum attention. Fully automatic thermostatic All the units fit standard cabinets ... require no vents or flues so installation is easy. They cost no more than a conventional range of comparable size and they can be financed as part of the home or remodeling loan so they're easy on the budget.


Ranges/Stoves
Published by:
Thermador
1957 8 9mb $4.99
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Thumbnail Image of Download 1959 Westinghouse Center-Drawer Refrigerator Owners Manual
Here is the complete owners manual pack with every Westinghouse Center-Drawer Refrigerator model RBD41.


Refrigerators/Freezers
Published by:
Westinghouse
1959 28 32mb $7.99
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Thumbnail Image of Download Instruction Manual for your new Filter Queen
Full owners manual and operating instructions for the Model 31 Filter Queen Vacuum Cleaner.


Vacuum Cleaners
Published by:
Filter Queen
1970 14 8mb $4.99
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Thumbnail Image of Download Kenmore Automatic Washer Owners Manual - 1968 500 and 400 Series
The complete owners manual and operating instructions to all 1968 500, 400 and Portable Washer Series Kenmore Washers.


Automatic Washers
Published by:
Kenmore
1968 36 28mb $4.99
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Thumbnail Image of Download KitchenAid Electric Housewares by Hobart
Brochure highlighting many KitchenAid small appliances available during the early 1970's. Stand mixers (4-C, K45 and K5-A), Coffee Mill KCM. Mixer attachments including the Can Opener, Roto Vegetable Slicer, Food Chopper, Dough Hook, Ice Cream Freezer and the Colander and Sieve Set.


Small Appliances
Published by:
KitchenAid
1971 2 3mb $7.99
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Thumbnail Image of Download Blackstone Model 190 Automatic Dryer Service Manual
Here is the complete service manual to Blackstone's second generation automatic dryer. Models: 190, 190A and 190B.


Clothes Dryers
Published by:
Blackstone
1950 23 20mb $4.99
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Thumbnail Image of Download 1960 Westinghouse Dishwasher Brochures
Here are two full color brochures featuring the Westinghouse Roll-Out built-in Dishwasher and the Westinghouse Roll-About Portable Dishwasher. Full images and specifications included.


Dishwashers
Published by:
Westinghouse
1960 8 10mb $4.99
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Thumbnail Image of Download Kelvinator Washer Service Manual - 1960
Here is the complete service manuals to all 1960 Kelvinator automatic washers.

Models include: W-95M, W-92M, W-70M, W-35M, W-30M and W-20M.

Sections include:
1. Installation Instructions
2. Mechanical Operation
3. Electrical Components
4. "Suds-Back" Components
5. Parts and Their Replacement
6. Lubrication
7. Service Diagnosis
8. Specifications
Automatic Washers
Published by:
Kelvinator
1960 54 31mb $4.99
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Thumbnail Image of Download Westinghouse D-5 Dryer Service Manual
Here is the complete service manual to all D-5 Westinghouse slant-front dryers. These are the machines with the "How Dry I Am" music box. Service manual includes instructions on servicing the musical signal as well as all other aspects of serving these wonderful dryers.


Clothes Dryers
Published by:
Westinghouse
1952 32 21mb $4.99
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Thumbnail Image of Download 1956 General Electric Automatic Washer Owners Manual
Here is the complete owners manual and use/care guide to General Electric's Automatic Washer model WA-750N.


Automatic Washers
Published by:
General Electric
1956 40 22mb $4.99
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Thumbnail Image of Download KitchenAid KD-68 Series Front Loading Portable Dishwasher Service Manual
Service manual for all KD-68 Series KitchenAid portable dishwashers. Models include KDD-68 and KDR-68. Sections include General Information, Cycle Description, Servicing Instructions, Service Tips, Schematic Wiring, Timer Sequence Charts.


Dishwashers
Published by:
KitchenAid
1978 32 18mb $7.99
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Thumbnail Image of Download Carefree Washing the GE Way
Full owners manual and operating instructions to the 1954 GE Automatic Washers.


Automatic Washers
Published by:
General Electric
1954 39 12mb $4.99
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Thumbnail Image of Download Use and Care of your Hotpoint Range
Here is the complete owners manual and operating instructions to all Hotpoint electric ranges from the early 1950's.

Models include: RD7, RD6, RC14,RB36, RB38, RB39, RB34, RB30.

Now THAT YOU are the proud owner of a new Hotpoint Automatic Electric Range, we know you are thrilled with its beauty, its many wonderful features . . . and you can’t wait to start cooking! And when you use and care for your new range in the best way possible, you will enjoy all of its features and advantages more . . . and more!

Behind this new Hotpoint Range are priceless knowledge and experience gained in almost fifty years of manufacturing world-famous electric appliances for the home. It took insight, ingenuity, and vision to design this new range for you — it took years of study, experimentation, and the building of the world’s largest range factory to make possible its production.

Your new Hotpoint Automatic Electric Range will make cooking easier for you ... much less time-consuming! And that’s not all — you’ll discover that cooking is jun with your new Hotpoint Electric Range . . . preparing the family meals will be an exciting adventure from now on!

Read this book carefully and refer to it often. It gives step-by-step instructions .. . simple steps to using your new electric range with ease to give best cooking results. Included also are points on how to care for your new range. Remember, good use and good care go together.

This Instruction Book describes the features and explains the use of all the new Hotpoint Range Models. "

Ranges/Stoves
Published by:
Hotpoint
1950 36 33mb $7.99
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Thumbnail Image of Download 1959 Frigidaire Dryer Service Tech-Talk
Full and comprehensive service manual to all 1959 Frigidaire dryers, both Filtrator and Air-Flow. Goes into how the filtrator system works, plus full specifications and repair information for all models.

Models include: DCI-59, DI-59, DCD-59, DD-59
Clothes Dryers
Published by:
Frigidaire
1959 32 22mb $4.99
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Thumbnail Image of Download 1961 Hotpoint Surface Section Cooktop Brochures
Beautiful brochures for the entire 1961 line of Hotpoint Cooktops.


Ranges/Stoves
Published by:
Hotpoint
1961 10 28mb $4.99
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Thumbnail Image of Download 1969 Kenmore Automatic Washer, Dryer, Combination and Wringer Models
Service supplement showing some of the 1969 and 1970 line of Kenmore washers, dryers, wringer washers and coin-operated washer models along with a description of features. Also includes information on the new Quiet-Pac design as well as a full description of the new "Enzyme Soak" feature on the top of the line models.


Automatic Washers & Dryers
Published by:
Kenmore
1968 14 11mb $4.99
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Thumbnail Image of Download How to Get the Best from your Dishwasher
Full owners manual and operating instructions to GE dishwasher models GSD2200D and GSD2400D. This is an early electronic/touchpad model.


Dishwashers
Published by:
General Electric
1983 20 19mb $4.99
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Thumbnail Image of Download 1960 Philco Electric Range Brochure
Here is a sales literature brochure to beatufiul mid-century styled ranges. Full images and specifications are included for the entire 1960 Philco line.

Models include: SS-4098, SS-4097, SS-4095, SS-4094, SS-4093, SS-3097, SS-3095, SS-3094, SS-3092, SS-2095.

Please note the originals had some minor water damage on them so there are some water spots or slightly blurry spots. However these are still very readable and super fun to look at.
Ranges/Stoves
Published by:
Philco
1960 16 26mb $7.99
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Thumbnail Image of Download Maytag Washers & Dryers from the Dependability People
Beautiful Maytag Brochure showing off all Center Dial Washers and Dryers as well as the Porta-Washer and Dryer. Big images and full specs for each model.


Automatic Washers & Dryers
Published by:
Maytag
1975 20 15mb $4.99
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Thumbnail Image of Download Operating Instruction Card
Operating Instructions for Whirlpool washers Models LWA5540; LWA5545 (with SUDS-MISER® system). Includes images of controls for each cycle and also includes chart of steps for stages in each cycle.


Automatic Washers
Published by:
Whirlpool
1970 2 3mb $4.99
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Thumbnail Image of Download KitchenAid KD-18 Series Dishwasher Service Manual
Comprehensive service manual for all 18 Series KitchenAid dishwashers. Models include KDS-18, KDP-18, KDI-18, KDC-18, KDS-38, KDC-38, KDS-58, KDI-58, KDC-58. Sections include General Information, Cycle Description, Servicing Instructions, Service Tips, Schematic Wiring, Timer Sequence Charts.


Dishwashers
Published by:
KitchenAid
1977 45 28mb $7.99
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Thumbnail Image of Download Osterizer Owners Manual and Recipe Book
Owners manual and cook for the Osterizer Blender of the mid 1950's.

Sections include: Osterizer Features, How to Operate your Osterizer, What your Osterizer Does, How to Use Your Osterizer and Recommenced Recipes for the Osterizer.
Small Appliances
Published by:
Oster
1953 68 84mb $10.08
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Thumbnail Image of Download Westinghouse Terrace-Top Range Owners Manuals
Here is a set of owners manuals for several Westinghouse Terrace-Top Range in the 1960's.

Models include: NTE3B, NTE3C, NTE3D, KTE3C, KLD30, KTB30A.
Ranges/Stoves
Published by:
Westinghouse
1966 48 34mb $7.99
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Thumbnail Image of Download The GE Review
The GE Review was an engineering magazine created to report on the advances of technology of the time, including advances in Home Appliances.

Articles in July 1952 issue...


Editorial: The Fourth of July

New Switchgear Laboratory Goes into Operation
Late last month on the flatlands of southwest Philadelphia, GE’s new high-capacity switchgear development laboratory was officially dedicated. With Company spokesmen looking ahead to an annual U.S. power consumption of possibly a trillion kw-hrs by 1965—more than triple the amount now being used—the new laboratory will aid in the development of switch- gear of higher ratings to keep pace with this phenomenal growth. continued…

Engineering the Automatic Washer
The automatic clothes washer is a simple device—to the housewife. She throws in the laundry, sets a control dial, and goes about her telephoning. A short time later she removes the laundry—washed and damp-dried.

Simply stated, the function of a domestic washing machine is to get the laundry clean, rinse out the detergent, and extract most of the water. For a third of the century these operations were performed with a machine in which the laundry was manually lifted from the tub and fed through a water- extraction device. Most of these devices were wringers, powered by the washing- machine motor. A limited number were the centrifugal-extraction type using the same or a separate tub. continued…

Stopping Ships
Even with modern navigating and communication aids there are times when things get out of hand and a collision ol ships appears imminent. The need for meeting this situation—rare though it may he—has an influence on the design of ships’ power plants.

Most large and fast ships are powered bv a steam turbine that drives the propeller through suitable gearing and shafting. The astern power that is used for stopping a ship is provided by a comparatively small separate section of the main turbine. The question immediately arises as to why the astern element can’t be given the same power as the ahead element. Well, it can. The simplest arrangement would he another turbine of the same size geared to drive the propeller backwards. continued…

Ferromagnetography
Contrary to general belief printing did not originate with Gutenberg; to the ancient Chinese belongs the credit. They made engravings—used mainly for printing on silk cloth—by carving figures out of wooden blocks. Later, around 1120 BC. they introduced wooden blocks of movable type.

Modern printing, on the other hand, began in the middle ages—about the year 1423. It was during this period that Johann Gutenberg, a German stonemason, had the idea of printing with movable type. So he set about his skill, cutting alphabets out of small wooden blocks to be used for typesetting. A friend advised him to use metal instead of wood, since it wouldn’t wear out so easily. This he did. As you can imagine, this task required many years and a large expenditure of money. He financed his operations by borrowing money on the type he’d already completed. Then, to prove to his creditors and the many cynics the worth of his efforts, he completely reproduced the Bible in print. continued…

Cool Breezes — Story of the Electric Fan
Fans preceded written history by many centuries. Some of the most ancient known fans were those of the Chinese dating back to 3000 BC. And ceremonial fans were used in 1700 BC by the reigning monarchs of Egypt and Assyria. Some thousand years later the "punkah" —a hand-swung lightweight ceiling-suspended fan—was introduced in India, and even today is still in use there.

From exquisitely made folding tans of the Japanese, followed by 17th century Paris creations of surpassing beauty, we come to the practical palm-leaf type and simpler folding fans of grandmother’s day.

It’s not possible to give the exact age of the electric fan—the youngest member of the ancient family of fans. But the earliest record of a U.S. patent awarded for an electric fan was in 1854. This was a ceiling-suspended assembly of several large fan blades, each hinged along one edge to a horizontal rotating arm driven by a battery-operated motor. Arms on the blades struck projections causing the blades to vibrate and thus agitate the air. continued…

Longer Life for Dry-type Transformers
Improvements in dry-type power transformers and their insulations is a good example of how electrical engineers are continually making progress in lengthening the life span of electric equipment and increasing its endurance to higher temperatures.

For many years insulations known as Class A were about the only ones available to the transformer designer. These insulations consisted of materials such as cotton, silk, or paper—impregnated with organic varnishes to give them additional mechanical and electrical strength. They were used in a medium of mineral oil or air. Such insulations were relatively inexpensive but a maximum allowable temperature limit of 105 C was necessary for reasonable life. continued…

The G10 Germanium Rectifier
In 1886 a German chemist by the name of Alexander Winkler found an unknown metal sulfide and isolated the element which he called germanium. It has a shiny metallic appearance, is extremely hard and brittle, and is recovered as a by-product in the smelting and refining of zinc ores.

Because germanium falls into group four of the periodic table, it has some of the chemical characteristics of the elements on either side of it. Germanium is both an electrical conductor and an electrical insulator, depending on its temperature, and is classed as a semiconductor. continued…

Nylon for Bearings and Gears
Although nylon is generally associated with such decorative items as stockings and sweaters, we have found that its versatility extends well into the fields of bearings, gears, and other workaday applications.
Nylon is tough at low7 temperatures, is resistant to abrasion, has strength in thin sections, is light in weight, has certain self-lubricating qualities, and is resistant to many chemicals. Properties are given in the table on the opposite page. Exact characteristics and specifications can be found in the literature put out by the manufacturers of nylon molding powders.

Bearing Tests - Of interest to design engineers is published data that shows the effect of wear on nylon when used as a bearing material. Results of tests using nylon against nylon, steel, and brass under various loads and speeds, and with various lubricants, are given on page 35. As you may suspect, the lowest rates of wear are found when nylon is run against nylon in a dry condition, as well as when nylon is run against steel lubricated with SAE 10 oil. When nylon is rubbed against brass, the metal flakes off and contaminates the hearing surface. continued…

The Unit Cost of Light
There’s more to figuring the cost of a lighting system than adding up the prices of fixtures, installation, and electricity. A tabulation of over-all annual costs that the customer may expect to pay appeals to the businessman, because it is expressed in his own language. Rut further analytical cost studies of operating and maintenance methods and lamp efficiencies may show you the way to worth-while savings or better lighting for the same expenditure.

To help you along this economic pathway a relatively simple formula has been devised. It is referred to as the "unit cost of light” method. In its most flexible form it deals with the raw light as generated by the lamps in just one fixture. Then, once the unit cost of light in dollars per million lumen hours is known, you can easily apply it to a specific installation if over-all costs are also desired. continued…

Added Kick for Turbojet Engines
Getting an 80-ton airplane into the air in a matter of seconds is no easy job. The problem is one of providing more than normal maximum thrust or "kick” at take-off. In the case of B-45 and B-47 jet bombers, their power plants (J-47 turbojet engines—one is shown on the adjacent page) were equipped with combustion-chamber water-alcohol injection systems for augmenting thrust.

Variations of these systems boost the take-off thrust from 15 to 25 percent or higher. As a result, heavy jet-powered aircraft can take off from minimum- length runways with maximum safety. continued…

Are We Ready for Railroad Electrification in the U. S.? .
Admittedly, widespread electrification in I lie United States is not just around the corner. Rut there is an element in the cost of railroad electrification and in the success of operation through the ensuing years that can not be settled too soon. This all-important factor is standardization. And standardization is so important primarily because it permits repetitive manufacture. Standardization, of course, offers other advantages that may be more familiar, but every day brings new evidence that a custom-designed article built in a job shop cannot compete with a highly engineered item produced under conditions of repetitive manufacture.

It is time for all who may have a hand in railroad electrification in the United States to start sifting out the alternatives and to find agreement on what may be the standard system of electrification in this country. Let us speak briefly about the prospects of electrification and [hen expand the theme of standardization. continued…

A Brightening Outlook - When will we see railroad electrification resumed in the United States? The answer depends largely on costs, with the cost of fuel or energy being a big part of the expense of locomotive operation.

When we compare the cost of diesel fuel with the cost of purchased electric power at the figures current today, we find them roughly equivalent. We are speaking, of course, of gallons of fuel oil or kilowatt-hours of electricity at the locomotive. As long as power costs in these two forms are even approximately equal, it is obvious that the diesel- electric locomotive with its lower investment is the correct answer for new installations. At the same time this approximate equality tells us that extensive electrified systems already installed should continue to be operated. continued…

New Safeguard for Protective Coatings
You can best define a plastics material as a synthetic organic substance. At some stage of production it’s plastic— capable of being shaped; or liquid— capable of being cast. Furthermore, it’s either thermoplastic or thermosetting. If thermoplastic, it softens under heat and can he remolded. If thermosetting, it sets under heat and can’t be remolded.

Phenolic materials are thermosetting plastics. And from practically the outset of the industry they’ve enjoyed an ever- expanding market. They take many and various forms. Probably the most familiar to you are radio cabinets, telephone handsets, buttons, tube bases, mechanical parts, and so on. continued…

Dollar-sign Engineering
The photo sequence beginning on the next page will show you how a value analyst operates—step by step—on a typical project. Here, it’s the timer for the automatic clothes washer. Because space doesn't permit us to show the results of the analysis on every part of the timer, we have selected one part as being typical. (In the actual project more than 30 individual parts of the timer were analyzed for value.)

It should be emphasized that nothing was wrong with the timer when we approached the Value Analysis Unit and requested a survey. The timer operated satisfactorily and costs were in line with similar products. But. as is the case with far-sighted management, they wanted to see if it wasn’t possible to further eliminate any unnecessary costs. continued…

Moisture vs Rubber Insulation
Although rubber compounds are used to waterproof such everyday items as overshoes, raincoats, and garden hoses, rubber compounds in general can’t be considered waterproof when used as an insulation for wire and cable.

What works on raincoats may not work on cables—the basic differences are: length of exposure; effect of moisture on the electrical properties. Cables insulated with rubber compounds must withstand years of continual exposure with a consequent absorption of moisture. And moisture absorption has proved to be a contributing factor in cable failures. continued…
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