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1933 - Before air conditioning came along as we know it today, people relied on electric fans, the swimming hole, shade and ice to keep cool in the hotter summer months. A fan marketer was looking out on the street below during one of these hot summer days, watching people crisscrossing the street and going from store to store. He first figured it just happened to be a particularly lucrative month, but upon interviewing store owners and managers, he learned that the majority of people entering their businesses came in to get out of the sun and to cool off under the electric fans in the stores, not to buy goods. Also around this time, there were many bars and taverns, where there was a need to not only cool the establishment, but to also help circulate and remove cigar and cigarette smoke. Besides a cold beer or shot, there were vending machines designed to keep people in these road houses buying drinks and food, such as cigarette and candy vending machines, jukeboxes for music and pinball machines, to name a few. The jobbers leasing these devices were also in most cases fan salesmen, with sales and service routes ready to exploit. Many other designers and marketers saw the need in the ventilation market for a more powerful fan that would circulate the air around their respective establishments, bringing in customers and hopefully profits. Designer Max Weber was one of them...

 

Roto-Beam 1937 - Roto-Beam Fan Makes Hit with Coin Industry - Automatic Age - June 1937 (2).jpgRoto-Beam 1937 - Roto-Beam Fan Makes Hit with Coin Industry - Automatic Age - June 1937 (4).jpg

             Roto-Beam 1933948 1.jpg                                                                           Roto-Beam 1933948 2.jpg

                                                      Roto-Beam 1933948 3.jpg

                        Roto-Beam 1933948 4.jpg                                                                Roto-Beam 1933948 5.jpg

                       Roto-Beam 1933948 6.jpg                 ------------------               Roto-Beam 1933948 7.jpg

                                                                                                   Roto-Beam 1933948 8.jpg

                                        Roto-Beam Motor Service Co. 1933 - Chicago_Tribune_Sun__Feb_19__1933_.jpg

                                        Roto-Beam Motor Service Mfg. 1933 - Fort_Worth_Star_Telegram_Fri__May_12__1933_.jpg

                                                                                   Roto-Beam Brentanos 1.jpg

                                                                                                            Roto-Beam Brentanos 2.jpg

                                                                       Roto-Beam Brentanos 3.jpg.

Edited by Mike Kearns
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1934 -

 

Roto Beam Desk.jpg Counter version Roto-Beam made by Motor Service Mfg. Co. - Images courtesy Osdene Collection -

Osdene Roto-Beam 1.jpg

Osdene Roto-Beam 2.jpg

Osdene Roto-Beam 3.jpg

Osdene Roto-Beam 4.jpg

Osdene Roto-Beam 5.jpg

Roto Beam Letter.jpg

Roto Beam Ped.jpg

RotoBeamCat_1.jpg                                                                                                                                                                                                                                                     Type 1 pedestal in the wild, images courtesy of Russ Huber: 

Minnesota Rotobeam 4.jpg

Minnesota Rotobeam 2.jpg

Minnesota Rotobeam 3.jpg

Rotobeam Russ.jpg

Rotobeam Catalog-Brochure 1 of 2 Front Cover.jpg

Rotobeam Catalog-Brochure 1 of 2 page 2.jpg

Rotobeam Catalog-Brochure 1 of 2 Factories.jpg

Rotobeam Catalog-Brochure 1 of 2 Offices.jpg

Rotobeam Catalog-Brochure 1 of 2 Hotels.jpg

Rotobeam Catalog-Brochure 1 of 2 Stores.jpg

Rotobeam Catalog-Brochure 2 of 2 Banks.jpg

Rotobeam Catalog-Brochure 2 of 2 Taverns.jpg

Rotobeam Catalog-Brochure 2 of 2 Theatres.jpg

Rotobeam Catalog-Brochure 2 of 2 Juniors and Exhaust.jpg

Rotobeam Catalog-Brochure 2 of 2 Patents.jpg                                                                                                                                                                                                                                                      This is an example of the single-speed model. I suspect the pole has been shortened. It has a simple on/off toggle switch: 

Roto-Beam Ebay 2 (2).jpg

Roto-Beam Ebay 3 (2).jpg

Roto-Beam Ebay 1 (2).jpg

Roto-Beam Ebay 9 (2).jpg

Roto-Beam Ebay 10 (2).jpg

Roto-Beam Ebay 6.jpg

Roto-Beam Ebay 4 (2).jpg

Roto-Beam Ebay 5.jpg

Roto-Beam Ebay 8 (2).jpg

Roto-Beam Ebay 11.jpg

Roto-Beam Ebay 11 (2).jpg

Roto-Beam Ebay 7 (2).jpg                                                                                                                                                                                                                                                        Air-Beam Corporation, of Chicago, makes it's debut. Marketing begins: October 14, 1934:

Air Beam Florida 1934 - The_Miami_Herald_Sun__Oct_14__1934_.jpg

Air Beam Front 9 inch View 1 (2).jpg

Air Beam Side View  9 inch (2).jpg

Air Beam Motor Tag 9 inch (2).jpg                                                                                                                                                                                                                                                    November 29, 1934:                                                                                                                                                                                                                            

Air-Beam Circulator Co. 1934 - 12.16.2021 - The_Miami_Herald_Thu__Nov_29__1934_.jpg                                                                                                                                                                                                                                                                   Roto-Beams used to chill produce in rail cars, February 7, 1934 -                                                                                                                                                                                                                                                          884700474_NewRoto-BeamStrawberryChiller1934-The_Daily_Courier_Wed__Feb_7__1934_.thumb.jpg.bf254825d8263e64609db6ab741e3e80.jpg

Edited by Mike Kearns
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1935 - Courtesy of Russ Huber: "Canadian Patent Office - MAX WEBER, doing business under the name and style of MOTOR SERVICE AND MANUFACTURING CO., Chicago, Illinois, USA Word: " Roto-Beam." Wares: Electric Fans, Pressure-type Fan Wheels, Suction-type Fan Wheels, Fan Guards, Fan Stands, ..." 

Roto 1935 1.jpg

Roto 1935 2.jpg

Roto 1935 3.jpg

Roto 1935 4.jpg

Roto 1935 6.jpg

Roto 1935 5.jpg

Roto 1935 7.jpg

Roto 1935 8.jpg

Roto 1935 9.jpg

Roto 1935 10.jpg

Roto-Beam Honolulu_Star_Advertiser_Tue__Jun_18__1935 (5).jpg

Roto-Beam Honolulu_Star_Advertiser_Tue__Jun_18__1935 (6).jpg

Roto-Beam  Asbury_Park_Press_Tue__Sept .3, 1935.jpg

Roto-Beam 1935 Asbury_Park_Press_Tue__Sep_3__1935.jpg                                                                                                                                                                                                                                                                                                                         "Air-Beam", a four-winged circulator produced by Roto-Beam , officially incorporates in 1935:

Air-Beam Corporation Created June 28 1935 - 12.16.2021 - The_Philadelphia_Inquirer_Fri__Jun_28__1935_.jpg                                                                                                                                                                                                                                                                                                                                    But at present there is not much more other than a 1935 advertisements for a movie theater:                                                                                                  

Air-Beam in Advertising Aug. 9, 1935 - Asbury_Park_Press_Mon__Aug_19__1935_.jpg

Air-Beam 1935 - Asbury_Park_Press_Wed__Aug_21__1935_.jpg

Air-Beam Circulators in Advertising Aug. 22, 1935 - Asbury_Park_Press_Thu__Aug_22__1935_.jpg                                                                                                                                                                                                                                                                  July 21, 1935-                                                                                                                                                                                                                              890839086_NewRoto-Beam1935-Richmond_Times_Dispatch_Sun__Jul_21__1935_.thumb.jpg.d9c1aabe4bbc0253a2b4f8fb85d2f4b6.jpg                                                                                                                                                                                                                                                                  July 21, 1935 -                                                     1203394154_Roto-BeamNew1935A-Richmond_Times_Dispatch_Sun__Jul_21__1935_-2.thumb.jpg.b012162fb7f568f0a1e3cc0585452a36.jpg        1351324840_Roto-BeamNew1935B-Richmond_Times_Dispatch_Sun__Jul_21__1935_-2.thumb.jpg.2516b328b628a8916fef65b2d4de7202.jpg                                                 

Roto-Beam New 1935 - Richmond_Times_Dispatch_Sun__Jul_21__1935_-2.jpg

Edited by Mike Kearns
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1936 -

Roto 1936 1.jpgRoto 1936 2.jpg

                                                                                                                                                                                                                                       Type 2 Roto-Beam residential pedestal, "watered-silk" texture silver paint, one "shot-glass" base ornaments: 

Roto 1936 3.jpgRoto 1936 4.jpg

Roto 1936 5.jpgRoto 1936 6.jpg

Roto 1936 7.jpg        Roto-Beam 1936 8.jpg        Roto-Beam 1936 9.jpg

Roto-Beam 1936 11.jpg                                                                                                                                                                                                                                                                                  Type 3 Roto-Beam residential pedestal, "watered-silk" texture silver paint, no "shot-glass" base ornaments, motor, cage, blade same as type 2:

Roto-Beam 1936 12.jpg

Roto-Beam 1936 13.jpg

Roto-Beam 1936 14.jpg                                               June 10, 1936 -                                                                                                                                                                                                                       1680486755_NewRoto-Beam1936-Norfolk_Virginian_Pilot_Wed__Jun_10__1936_.thumb.jpg.25e3db5caa56be5b053029b35b166d5a.jpg

Edited by Mike Kearns
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1937 -

Roto 1937 1.jpg

Roto 1937 2.jpg

Roto 1937 3.jpg

Roto 1937 4.jpg

Roto 1937 5.jpg

Roto 1937 6.jpg

Roto 1937 7.jpg

Roto 1937 9 (2).jpg

Roto 1937 10.jpg

Roto 1937 11.jpg

Roto 1937 14.jpg          Roto 1937 15.jpg

Roto 1937 16.jpg        Roto 1937 17.jpg

Roto 1937 18.jpg                                                                                                                                                                                                                                                                                                                                             Drawings to a 1937 British Roto-Beam patent:

Roto 1937 19.jpg                                                                                                                                                                                                                                                                                                                                         Roto-Beam marketing July 1937 "Telephone Engineer" -                                                                                                                                                                                                                 253953353_Roto-BeammarketingJuly1937-TelephoneEngineerA.thumb.jpg.22ecfb3536e534147e611a04d0f491e6.jpg                                                                                                                                                                                                                                                                                                                                                 Ideal Commutator expands, "Electrical Contracting" October 1937-                                                      475563316_Roto-BeamIdealCommutatorElectricalContractingOctober1937.jpg.c1a12265899722ba2e1769baec81999d.jpg

Edited by Mike Kearns
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1938 -

Roto 1938 1.jpgRoto 1938 2.jpg1295423381_Roto19383.jpg.803a03b0c419de6f0d4c963319b5075b.jpg

Roto 1938 4.jpg                               Roto 1938 5.jpg                                                                                                                                                                                                                                                                                      Roto 1938 6.jpg                       Roto 1938 7.jpg                                                                                                                                                                                                                                                                                                                                                     

                                                                    Roto 1938 8.jpg                                                                                                                                                                                                                                                                                                                                                                 Two 10-inch Roto-Beam variants from 1938:

                                             Roto 1938 9.jpg

                                                     Roto 1938 10.jpg

                    Roto 1938 12.jpg

                    Roto 1938 13.jpg                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Bad news for Max: Weber's wife files for divorce citing "mental cruelty".                                                                                                                                                                                                

                                                                                                                                Roto 1938 14.jpg                                                                                                                                                                                                                                                                                                          1938 seems to be a transitional design year for Roto-Beam, larger circulators are redesigned, using motors no longer made by Century as in past years, but by Ohio Electric. Example shown from the Osdene Collection: 

                       Roto 1938 15.jpg                                                        329556603_Roto193816.jpg.dc081de6a3093c66aaaf615d8e4fa9fb.jpg

                                                  Roto 1938 17.jpg

Roto 1938 18.jpg

Roto 1938 19.jpg

Roto 1938 20.jpg

Roto 1938 21.jpg

Roto 1938 22.jpgRoto 1938 23.jpg

Roto 1938 24.jpg

Roto 1938 25.jpg

Roto 1938 26.jpg

Roto-Beam 1938 - Jefferson_City_Post_Tribune_Tue__Jun_28__1938_.jpg

Roto-Beam 1938 Clovis_News_Journal_Thu__Aug_18__1938_.jpg

 

Edited by Mike Kearns
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1939 -  Roto-Beam Marketing, January 1939 edition of trade journal "Electrical Merchandising":                     180711030_Roto-BeamMarketingJanuary1939ElectricalMerchandising.jpg.22f8a83fec46e0989f107458f9ba15a3.jpg

Roto 1939 1.jpg

Roto 1939  2.jpg

Roto 1939  3.jpg

Roto 1939  4.jpg                                                                                                                                                                                                                                                                                                                                           Close-up of pedestal base unique to this year:

Roto 1939  5.jpg

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1940 - Fairbanks-Morse, famous for industrial scales, markets Roto-Beam in 1940:

                       Roto 1940 1.jpg                                                   A Fairbanks-Morse labeled Roto-Beam example from the late, great Jim Daggs Collection: 

                                                                     Roto 1940  2.jpg

Roto 1940  3.jpg

Roto 1940  4.jpg

Roto 1940  5.jpg                                                                                                                                                                                                                                                                                                    Here's an example of a 24 inch Roto-Beam circulator, three-speeds, AC motor:

                                                                               Roto 1940  6.jpg

                         Roto 1940  7.jpg

                         Roto 1940  8.jpg

                         Roto 1940  9.jpg

                                                              Roto 1940  10.jpg                                                                                                                                                                                                                                                            The rear motor view reveals the motor to be a General Electric, a run capacitor, a start capacitor and a speed coil and Model 473 McGill Levolier switch, three speeds:

Roto 1940  11.jpg

Roto 1940  12.jpg

Roto 1940  13.jpg

Roto 1940  14.jpg

Roto 1940  15.jpg                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                The base is black porcelain covered cast iron. The casting foundry mark data plate indicates this base is specifically for a 24 inch Roto-Beam:

                         Roto-Beam 24 Inch Circulator 1940 B (2).jpg

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1941 - Roto-Beam becomes a division of Peerless of America, 30. Courtesy of Russ Huber: "1941 - ‎Snippet view MH, 30 S. Broadway, Yonkers, N. Y. 140 Roto-Beam Air Circulators Roto-Beam Air Circulators have been completely redesigned and are reported to be particularly suited for use in ... 373) Roto-Beam Division, Peerless of America, Inc., Dept."

Roto 1941 1.jpg

Roto 1941 2.jpg

Roto 1941 3.jpg

Roto 1941 4.jpg

Roto 1941 5.jpg

Roto 1941 6.jpg

Roto 1941 7.jpgRoto 1941 8.jpg

Roto 1941 9.jpgRoto 1941 10.jpg                                                                                                                                                                                                                                                                               What appears to be sideways is a rare window mount Roto-Beam Model 116W, shown in above catalog. Brought to our attention by Stephen S. Dempsey:    777484118_Roto-BeamWindowMount499.00Ebay1(2).thumb.jpg.f552ea4b2dd49972bc882cffc5f468e5.jpg                 1699270910_Roto-BeamWindowMount499.00Ebay2(2).thumb.jpg.ba53907a9e8e318e5c58b112ea85f3a3.jpg      1281098005_Roto-BeamWindowMount499.00Ebay3(2).thumb.jpg.fecf9ca8b8a709f3f49b632f97fa9983.jpg                                815173243_Roto-BeamWindowMount499.00Ebay5(2).thumb.jpg.06012305596134ff5bf4ee9860aa3065.jpg 2097388740_Roto-BeamWindowMount499.00Ebay6(2).thumb.jpg.836ba6e487b058d7a4400d81aeade621.jpg              1409408373_Roto-BeamWindowMount499.00Ebay7(2).thumb.jpg.a8e9d69135d0b47261462254b634ee1b.jpg                                                                                                                                                                                                            This is a rare example of an Roto-Beam direct-current circulator:

            Roto 1941 11.jpg                                                                   Roto 1941 12.jpgRoto 1941 13.jpg                 Roto 1941 14.jpg

Roto 1941 15.jpg
                                                                                                                                                                                                                                                                                                                                                    Peerless Roto-Beam 10-inch:

                                                        Roto 1941 16.jpg
                                                                                                                                                                                                                                                                                                                                                     Peerless Roto-Beam 16-inch:

                                             Roto 1941 17.jpg                                                                                                                                                                                                                                                                                                                                                Model H-10 Roto-Heat-Beam

          Roto 1941 18.jpg                                                                                                                                                                          

          Roto 1941 19.jpg

                  Roto 1941 20.jpg

                                                                    Roto 1941 21.jpg                                                                                                                                                                                                                                                                  August 20, 1941 -                                                                                                                                                                                                                                                                                     118136200_Roto-Beam1941ChickenNEW-Tallahassee_Democrat_Wed__Aug_20__1941_.thumb.jpg.3555a94fce5d5e7f31ff909012366970.jpg

Edited by Mike Kearns
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1944 - During the war years between 1941 to 1945, Weber applies for and is granted utility and design patents for Roto-Beam residential box fans, which as of this writing, have yet to surface.

Roto 1944 1.jpg              Roto 1944  2.jpg

                         1999056855_Roto19443(2).jpg.5f7322c245b4cf602b9f2984311c214d.jpg

     Roto 1944  4.jpg

Roto 1944  5.jpg                      Roto 1944  6.jpg

Roto 1944  7.jpg

Roto 1944  8.jpg

Edited by Mike Kearns
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1946 - Postwar, Roto-Beam is shifted yet again and becomes a division of Climax Engineering Co. of Clinton, Iowa, information courtesy of Russ Huber: Electrical Construction & Maintenance - Volume 47 - Page 270:
Max Weber, designer and patent- holder of the Roto-Beam air radiant circulators, has announced that he will personally direct the manufacture and distribution of this line in the future. Mr. Weber takes over from Climax Industries, Inc., Clinton, Iowa, former licensee under Mr. Weber's patents. The new address of Roto-Beam is 17SS-S7 N. Keelcr Ave., Chicago, 111. ]                                                                                                                                                                                                                                                                                                                                                  Roto-Beam 8-inch - Abernathy Collection

Roto 1946  1.jpgRoto 1946  2.jpg                                                      Courtesy of Russ Huber:  1946 - ‎Snippet view Climax Engineering Company, Clinton, Iowa, acquires all manufacturing and selling rights to the “Roto Beam" radiant air circulators from the Roto Beam Company, Chicago. The following history of the Climax Engineering Co. is based on information from a variety of sources. Based on these sources, the company was founded in 1900 by James Dwight Lamb, as the Lamb Boat & Engine Company. By 1905 the company was building 2 and 4 cycle engines from 1.5 to 60 HP. In 1916 a fellow named George DuLaney re-organized the company as the Climax Engineering Company and was Chairman of the Board from 1920-38. By 1929 the company was being run by offices in Chicago. The records indicate that in 1933 Climax and the Chrysler Corp. were jointly building gas engines. In 1942 the General Finance Co. of Chicago took over the company. Liberty Products Mfg. Co. of Liberty, MO ran the company for a short time. During WWII the company also manufactured military grade hydraulic pumps. After the war, Climax also manufactured Max Weber's Roto-Beam Air Circulators (fans), the Till­Master rotor tiller and refrigeration equipment. In 1952 the company reverted back to General Finance which then sold it to the Eversharp Corp. and became its Climax Engine & Pump Division. There is the story about trying to machine Eversharps' razor blades at the Climax plant, but the plant's foundation on the "bottom land'' along the Mississippi River wasn't stable enough to machine the razor's razor thin edge. Eversharp got out of the razor business in 1957 and sold the company to Waukesha that same year.

                                          "Air-Beam"- branded circulators manufactured by Roto-Beam Corp. are being marketed again in late 1946: 

Roto 1946  3.jpg                                                                                                                                                                                                                                                                                                        Roto-Beam Climax Engineering from Radio-Retailing - 1946 - Image Courtesy of Andy Hackman, with thanks.  

Roto 1946  4.jpg                                                                                                                                                                                                                                                                                                                                      Square Cage Roto-Beam - Image courtesy Tomas Trujillo                                                                                               SquareCageRoto-Beam-TomasTrujillo.thumb.jpg.059ca592643405d41522a4bd32e9be10.jpg

Edited by Mike Kearns
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1947 -

Roto 1947 1.jpgRoto 1947  2.jpg

Roto 1947  3.jpgRoto 1947  4.jpg

Roto 1947 5.jpg

Roto 1947 6.jpg                                     Roto 1947 7.jpg

Roto 1947 8.jpg                                                                                                                                                                                                                                                                                                                          "Air-Beam", produced by Roto-Beam Corp. seems to be heavily marketed in 1947, possibly to be rid of old stock: 

Roto 1947 9.jpg

Roto 1947 11.jpg

Roto 1947 12.jpg                                                                                                                                                                                                                                                                                                                                                                                         Air-Beam 16-inch example - Abernathy Collection:

Roto 1947 13.jpgRoto 1947 14.jpg

Roto 1947 15.jpg                                                                                                                                                                                                                                                                                                                                                           Of special note: While often missing, the center of the Air-Beam cast-aluminum blade hubs were plugged with a for want of a better term "Hershey's Kiss" shaped plastic insert, shown here: 

Roto 1947 16.jpg

Roto 1947 17.jpg

Edited by Mike Kearns
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1948 - Courtesy of Russ Huber: 1948 - ‎Max Weber, designer and patent- holder of the Roto-Beam air radiant circulators, has announced that he will personally direct the manufacture and distribution of this line in the future. Mr. Weber takes over from Climax Industries, Inc., Clinton, Iowa, former licensee under Mr. Weber's patents. The new address of Roto-Beam is 17SS-S7 N. Keeler Ave., Chicago, 111.

Roto 1948  1.jpg                                                                                                                                                                                                                                                       Courtesy of Russ Huber: "1948 - The motor cover housing for the Roto-Beam and the base of the table model are molded of the same high-impact Durez material as the propeller. Designer: Max Weber, Roto-Beam, Chicago, III."   Durez Plastics (originally named General Plastics) was established in 1921 by Harry M. Dent in North Tonawanda, New York. Durez was a chemical and plastics factory that manufactured plastic molding compound, which it then sold to other manufacturing facilities. These facilities used the plastic molding compound supplied by Durez to make a wide variety of products that included hard plastic handles for irons and other small appliances, as well as a variety of automotive parts. Durez gradually grew to accommodate the growing demand for plastic molding compounds. At the North Tonawanda facility, the phenol plant was built in 1940, and in 1947, construction of the formaldehyde plant began. In 1955, the Kenton, Ohio plant was established in order to duplicate manufacturing efforts at the North Tonawanda plant. In the same year, Durez became part of the Hooker Electrochemical Company. During its peak production years, Durez was one of the world’s largest manufacturers of phenolic resin and molding compounds. This is the 10-inch version:

Roto 1948  2.jpg

Roto 1948  3.jpg

Roto 1948  4.jpg

Roto 1948  5.jpg

Roto 1948  7.jpgRoto 1948  8.jpg

Roto 1948  9.jpg   80102988_Roto194810.jpg.34f6faa99a3eeda6f5994fdeeded0b87.jpg                                                                                                                                                                                          Roto 1948  11.jpg    1036496575_Roto194812.jpg.b6c6fce0d6159e87613245ff108ca93a.jpg 582970522_RotoApril2.jpg.51248b3cfb1c86376f853f83aa843f3f.jpg1022994848_RotoApril3.jpg.700fb99c3e95221f1d4764ae79df3ab5.jpg                                                                                                                                                                  370527807_Roto-Beam1948New(2).thumb.jpg.440f604d72eb26e78514f265885b2761.jpg                                                                                                                                                                                                                                                                                                                                                             One cast in black:

Roto 1948  6.jpg                                                                                                                                                                                                                                                                                                                                            And one cast in brown:

Roto 1948.jpg

New Roto-Beam 1948 - The_Courier_Sun__Jul_18__1948_.jpg

Edited by Mike Kearns
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1949 -

Roto 1949  1.jpg                  Roto 1949   2.jpg

Roto 1949   3.jpg                              Roto 1949   4.jpg

Roto 1949   5.jpg                                                                                                                                                                                                                                                         Image of counter and pedestal production models are courtesy of Andy Hackman.

Roto 1949   6.jpg

Roto-Beam 1949 (3).jpg

Roto-Beam 1949 (2).jpg

Roto Heat-Beam 1949 - The_Atlanta_Journal_Sun__Jul_24__1949_.jpg

Edited by Mike Kearns
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 1952 -  Durez ten-inch example:

Roto 1952 1.jpg

Roto 1952 2.jpg

Roto 1952 3.jpg

Roto 1952 4.jpg

Roto 1952 5.jpg

Roto 1952 6.jpg                                                                                                                                                                                                                                                           On August 16, 2010, AFCA member Mike Mirin shared this Roto-Beam 32-volt anomaly with us, a Roto-Beam made for use on boats:

Roto 1952 7.jpg

Roto 1952 8.jpg

Roto 1952 10.jpg

Edited by Mike Kearns
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1953 -  See it run: https://www.youtube.com/watch?v=fQFVWow55Wo

Roto-Beam Air Wave 1953 - The_Roanoke_Leader_Thu__Jul_2__1953_.jpg

Roto-Beam Mine Mike Mirin 3.jpg

Roto-Beam Mine Mike Mirin 2.jpg

Roto-Beam Mine Mike Mirin 1.jpg                                                                                                                                                                                                                                                                                                                               Roto-Beam 10-inch circulator - Mirin Collection

Roto-Beam 10 1nch pedestal front - Mike Mirin Collection.jpg

Edited by Mike Kearns
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1 hour ago, Louis Luu said:

Very cool!  Mike, how does Air Beam fit into this?  Was it a knockoff of Roto Beam?

I found this in his Roto-beam thread on the old forum. It appears it was licensed to them by Roto-beam. They first appear around 1934-35877_161936_510000000.jpg.a8a112482a9b9894abe2efc389adff25.jpg877_161943_310000000.jpg.1b3a706468add1c107a652caffbbab1b.jpg877_161946_540000000.jpg.e22a2ec35a9ed1480e80b5941f4e1ce2.jpg877_191934_470000000.jpg.bb64407216e37ee44089124b187d9e76.jpg877_191940_450000000.jpg.6d41110737d2baf368526060f2796ea8.jpg

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