Invented by a member of the Abbott family of Bendigo, scalebuoys came in various sizes and had a variety of uses such as the mining industry to prevent scale build up in boilers, automotive for car radiators and domestic for water purification. Its essential part is a sealed glass bulb containing a small amount of mercury and a combination of gases.This particular variety was made to be connected to a water tap with a screw attachment and a small outlet pipe. Scalebuoy sent to Alan Cowling from work colleague, Pat Curran in Tasmania. Pat Curran was working as the CEO of a retirement village and found the scalebuoys in the equipment there. Noting the Bendigo manufacturing logo, he decided to send it to Alan. The original owner of the scalebuoys is unknown.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. Scalebuoy sent to Alan from work colleague, Pat Curran in Tasmania. Pat Curran was working as the CEO of a retirement village and found the scalebuoys in the equipment there. Noting the Bendigo manufacturing logo he decided to send it to Alan. Original owner is not known.Bendigo Electronic Coy Ltd A. C. Scalebuoysciences, instruments - general, scalebuoy

Black and white photo of a 10 Buoy Unit installed at O'Halloran's Cyanide Plant at Eaglehawk. Photo shows two views, one from the side and one from the top of the unit. Information typed on the back of the photo.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, scalebuoy, o'halloran's cyanide plant eaglehawk, vincent kelly

Black and white photo by Vincent Kelly. Photo shows a man holding a Scalebuoy unit by some attached pipes. He is standing on a plank behind two large cross beams. It is an 8 Buoy open tank unit installed at the Central Nell Gwynne Gold Mining Coy.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, scalebuoy, vincent kelly, central nell gwynne gold mining coy

Black and white photo by Vincent Kelly of a diesel engine with a Scalebuoy fitted. The engine belonged to the Central Nell Gwynne Gold Mining Coy. Information typed on the back of photo.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, scalebuoy, diesel engine, central nell gwynne gold mining coy, vincent kelly

Black and white photo by Vincent Kelly Bendigo. Photo shows deposits of scale taken from bottom of jacket when head was removed from the cylinder head of a diesel engine belonging to the Central Nell Gwynne Gold Mining Company. Information typed on the back of the photo.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, central nell gwynne gold mining coy, scalebuoy, vincent kelly

Black and white photo by Vincent Kelly. Typed on the back: Four Buoy house unit. Dish in picture is an old iron dish which has been used for fowls to drink out of. The photo speaks for it self. After a few weeks treatment by pouring in a dipper full of Scalebuoy Water daily the results of the process can be seen. Note the patches where the scale formations have been removed. The photographer's name - Vincent Kelly Bendigo is imprinted in the bottom left corner.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, four buoy house unit, vincent kelly

Black and white photo of a Scalebuoy set up beside a Wood Chip Heater Unit (Bath). Typed on the back: Wood Chip Heater Unit (Bath). Fitted direct to heater here hot or cold Scalebuoy treated water may be had at any moment.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, scalebuoy wood chip heater unit (bath)

Black and white photo a stripped Studebaker President 8 Engine from a bus. Photo shows the interior of the engine block, crankshaft and pistons with conrods. Typed on the back is information about the bus.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, scalebuoy, vincent kelly, studebaker president 8 engine

Black and white photo of the interior of the Crystal Ice Works showing the Scalebuoy Unit. Written on the back: Crystal Ice Wks Bendigo.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, crystal ice works bendigo, scalebuoy

Black and white photo a some scale which was removed from the boiler at Knox Home, Auckland, N.Z. A ruler is lying amongst the scale to show the size of the pieces. Photo taken by F. W. Young, Press & Commercial Photographer. Written on the back: Scale removed from Boiler at Knox Home Auckland N.Z. September 1937. Scalebuoy Treatment been used approx 7 months.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, knox home auckland, f w young

Black and white photo of a barrel shaped Scalebuoy Unit which is driven by a small electric motor. Large pipes enter and exit the barrel. Written on the back: Installation at Mater Misericordiae Hospital Auckland, N.Z.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, chelsea studio auckland, mater misericordiae hospital auckland

Black and white photo of a Scalebuoy being used with a gas Bath heater unit. Typed on the back: Scalebuoy Metropolitan Gas Bath Heater Unit. Fitted to the heater in conjunction with combination water cock and gas valve.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, scalebuoy unit, bath heater

Black and white photograph of a Scalebuoy Unit attached to the side of a house. Unit is long cylinder with two pipes coming out of it and joined at the top. There are three gate valves on the unit. Some plants beside the unit.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, scalebuoy

Page with a photo showing the effects of Scalebuoys on the Divining Rod. Beside it is two more photos, one showing a column of water and the other showing the effects of Scalebuoys on the same column of water.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, scalebuoy

Black and white photo of a man standing beside a large Scalebuoy unit. The unit has a large end which is held on by eight large bolts with wheel fasteners and two inspection plates each with six bolts. The unit is in a building and there is another man in the background. Cohuna Butter Factory written on the back.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, scalebuoy, cohuna butter factory

Black and white photograph of a large Scalebuoy Unit and other various parts and units arranged on the floor in front of the large unit. Photo pasted onto an album page and some newspaper cuttings from The East Anglian Daily Times dated Wednesday, April 7, 1937 on the back. Cuttings mention the Funeral of Capt. J. Brooks Close, Auckland Registrations of New Private Companies including Electronic Company of New Zealand, Ltd, Scalebuoys (New Zealand) Ltd and some travel arrangements of Richard H. S. Abbott.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, scalebuoy, east anglian daily times 7/4/1937, r h s abbott, capt james brooks close, electronic company of new zealand ltd, scalebuoys (new zealand) limited

Black and white photo of two men outside a building with two piles of scale and a Scalebuoy Unit. One man standing beside the door is wearing a suit and the other man, sitting on a box, is wearing overalls and he is holding a six buoy unit. One pile of scale is pale and the other is black. Written in the photo is Shrensbury Dairy Co (N.J). Beside the black pile of scale is: Scale removed July 12-1933 and beside the pale heap is: Scale removed May 10-1933. At the bottom is: Electronic Buoys Installed Feb. 26-1933. Photo is pasted on an album page. On the back is another sepia photo of a very large scalebuoy unit which is resting on the ground. Behind it a large tank resting on two large concrete blocks.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, shrensbury dairy co (n.j)

Black and white photo of two lots of scale. On the left is a pile of scale on a board sitting on a drum and on the right is another pile of scale on a board resting on two boxes. In the background is a brick building and stacks of wood.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, scale

Small black and white photo of a man holding a large diesel fuel Scalebuoy unit. The man is in front of a large building. Written on the back: Large Diesel Feul Unit. Glass container. Scalebuoys visible at all times.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, diesel fuel scalebuoy unit

Small black and white photo of a Hollman Ace Compressor with Scalebuoys. Compressor has steel wheels. Name written on the back.sciences, instruments - general, scalebuoy, bill ashman collection - correspondence, hollman ace compressor with scalebuoys