Five copies of a letter from ? Smith, Engineer Way & Structures, of the Kansas City Public Service Company to Paul A. Douden & Co., dated November 15, 1937. He tells of their experiences with Scalebuoys. He mentions reduction of scale and about a 30% reduction in the consumption of soap and the chemicals used in the water for cleaning purposes. In the bottom left corner is a small picture of a bus and a tram.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, kansas city public service company, paul a douden & co, ? smith

Four letters from Helen Tangney-Springer, Manager of the Wahkonsa Hotel, Fort Dodge, Iowa to Paul A. Douden & Company, dated November 13, 1937. Mentioned in the letter is the use of Scale Buoys in the coffee urns and the hot water tank and the difference in the cleaning of them.Letterhead - Tangney Hotelssciences, instruments - general, scalebuoy, bill ashman collection - correspondence, e c tangney, helen tangney, h h mueller, e j tangney, tangney hotels, wahkonsa hotel, muscatine hotel, arlington hotel, burke hotel, paul a douden & company, helen tangney-springer

Five copies of a letter to Paul A. Douden & Company from W. E. Humphrey, Chief Engineer, dated November 12, 1937. Paper has printed letterhead with a photo of the rubber company at the top. Writer mentions that they are pleased with the work of the Scale Buoys and that there is no scale in the pipes. Previously they had to replace piping regularly.sciences, instruments - general, scalebuoy, bill ashman collection - pennsylvania rubber company, paul a douden & company, w e humphrey

Leaflet from the Bendigo Electronic Company of Australia Pty. Ltd. Titled 'Directions for the use of 'The Scalebuoy hand Shaker' for Bath, Basin or Drinking Vessel. Leaflet gives instructions for the use of the Scalebuoy by Frank A. Stevenson. On the back are pictures of the hand Shaker Scalebuoy and the Vest Pocket Scalebuoy.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, bendigo electronic company of australia pty ltd, frank a stevenson, the scalebuoy hand shaker

Three typed copies of a letter dated 29 June, 1938. Letter is to Scalebuoys (New Zealand) Ltd. From the Manager of The Whangarei Co-op Dairy Company Ltd. Mentioning the improvement in the condition of the two boilers since using the Scalebuoy. Also mentioned that using the treated water gave a better result for washing the five churns than the untreated water.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, whangarei co-operative dairy company, ltd, scalebuoys (new zealand) ltd, babcock

Group of paper pinned together of various experiments. Items include Tail light invention for Defence Dept. 18/9/41, Heat of glass, Refractive Index Tests on Melbourne Tap Water 31/7/42, Research Data, Manufacture of the Buoys 18/1/43, Specifications 1/12/42, List of substances with their Atomic No., Symbol, Atomic Weight, Melting Point and Year of discovery and a hand drawn diagram for an experiment. Bendigo Electronic Company of Australia Pty Ltdsciences, instruments - general, scalebuoy, bill ashman collection - correspondence, bendigo electronic company of australia pty ltd, defence dept, capt slattery, f a stevenson

Four page carbon copy of a list of shares detailing the shares at £1 each and 5/- each. Mentioned is the countries where the Scalebuoys were used and some of the companies in England, United States, Canada and New Zealand who used them. In Bendigo they could be inspected at the Crown Hotel, Central Nell Gwynne Gold Mine and Hunters Cordial Works. Also mentioned is what Scalebuoys are, What they do, How Scalebuoys Function, Prospects and Sale Purchase Conditions.sciences, instruments-general, scalebuoy, bill ashman collection, victorian scalebuoy company, bendigo electronic process, crown hotel, central nell gwynne gold mine, hunters cordial works, victorian railways, bendigo electronic company

Assorted letters, notes, drawings all relating to Scalebuoys, some between Bendigo Electronic Company and Cohuna, Gunbower & Rochester Butter Factories.organization, business, butter factory

Booklet on Alfloc water treatment service along with a one page letter from H.B.Selby & Co Pty Ltd to Bendigo Electric Company of Aust Pty Ltd with reference to Scalebuoys.sciences, instruments - general, scalebuoy

Three buff coloured envelopes with Frank A Stevenson 62 Honeysuckle Street Bendigo stamped above Bendigo Electronic Company of Australia Pty Ltd, in green a picture of a Scalebuoy.communication, postal, envelope

Black and white photograph in a Bendigo Electronic Company envelope noted photo kidney stone Frank Dodd Mildura, notation on back of photograph reads, kidney stone passed 20 months 607 days using Scalebuoy water, from Mr Frank Dodd 155 13th Street Mildura.medical

Large bundle of approximately 300 double sided sheets of directions for the use of the Scalebouy hand shaker for bath basin or drinking vessel printed by the Bendigo Electronic company of Australia Pty Ltd Sole Distributor Frank A Stevenson 62 Honeysuckle Street Bendigo.sciences, instruments - general, scalebuoy, bendigo-inventions-scalebouys-bendigo electronic company

9 copies of a Medical research paper The Electrical Factor in Metabolism (Section 1) written by W.N.Abbott and E.F.Fowler with reference to Scalebuoys, printed by Commercial Printing Company Boulcott Avenue Wellington, distributed with the compliments of Frank A Stevenson 244 Hargreaves Street Bendigo.medical

10 copies of a Medical Research Paper, The Electrical Factor in Metabolism (Section 2) by W.N.Abbott and E.F.Fowler with references to Scalebuoys, printed by Commercial Printing Company Boulcott Avenue Wellington.medical

Brown binder containing blueprints of Scalebuoys, notes on how to use them and reports from Companies using them.sciences, instruments - general, scalebuoy

Scalebuoy. Invented by Hartley Abbott & patented under the name of the Bendigo Electronic Company, made in various sizes & for different applications, such as to prevent scaling in the boilers at mines. Made up of a sealed glass bulb containing mercury and gasses enclosed within a chromed wire cage & with a chromed handle. The one shown being a hand held shaker model.sciences, instruments - general, scalebuoy

Typed carbon copy of a letter to the Honourable Commissioner General of Immigration from Richard Hartley Smith Abbott asking for an extension of his re-entry permit. Dated 21 February, 1939.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, richard hartley smith abbott, mariposa, abbott supply company bendigo

Scalebuoy. Invented by Hartley Abbott and patented under the name of the Bendigo Electronic Company, made in various sizes & for different applications, such as to prevent scaling in the boilers at mines. Scalebuoy case is a 57 long cylinder 13 centimetres diameter with two pipe fittings coming from it. Each end of the cylinder is removable. sciences, scalebuoy, bill ashman collection

Scalebuoy. Invented by Hartley Abbott and patented under the name of the Bendigo Electronic Company, made in various sizes & for different applications, such as to prevent scaling in the boilers at mines. Part of the Aileen and John Ellison collection.Made up of a sealed glass bulb containing mercury and gasses enclosed within a chromed wire cage and with a chromed handle. The one shown being a handheld shaker model. science, bendigo electronic, abbott