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Description: | BAIRD & TATLOCK (LONDON) LTD (moulded into the iron base). 37 (moulded into the under surface of the iron base). MANU Baird & Tatlock (London) Ltd circa 1910 Factory "The lodge", Walthamstow, Essex, Office and Warehouse, 14, Cross Street, London, E.C.1. England. DES after BUNSEN,Robert,Wilhelm,Eberhard,Professor,von. between 1855 and 1860 The University of Heidelbe This drip resistant bunsen burner is adjusted by turning a screw. Since there is no air regulator it is more properly known as a gas blow pipe. In this type of burner the air and gas were premixed and normally operated at high at pressure . However, since it could also be operated at very low pressure it was probably used in the lecture theatre for producing a sensitive flame for acoustical work.
The fuel could be a gas or for special purposes vapourised liquids such as pentane. However, the most likely fuel was 'town gas' of which there were basically three types 'coal gas', which was made by distilling coal. This process removed about forty percent of the mass of the coal in the form of gases and other volatiles which were used in the chemical industry and for producing tar. The remaining sixty percent was in the form of coke, which because it had a very high carbon content was used as a fuel.
Another process was 'producer gas' made by blowing air through burning coke which produced a mainly carbon monoxide and nitrogen mixture.
The other was 'water gas' produced by blowing air and steam through burning coke which produced a mixture of hydrogen, carbon monoxide and nitrogen. However, for higher temperatures acetylene or hydrogen were often used. | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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