Specification of Alexander Jamieson : regulating the temperature of vulcanizing apparatus.

  • Alexander Jamieson
Date:
1873
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Alexander Jamieson : regulating the temperature of vulcanizing apparatus. Source: Wellcome Collection.

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    2 A.D. 1873.—N° 1715. Provisional Specification. Jamieson's Impts. in Regulating the Temperature of Vulcanizing Apparatus. regulating the quantity of gas allowed to pass to • the burner or burners. The mercury by preference is placed in a glass tube or chamber, which is let into the top of the vulcanizer or boiler. The top of this chamber is provided with a metal tube through which the gas passes for being admitted to the furnace for heating the vulcanizing chamber or boiler. 5 When the heat of the steam in the vulcanizing chamber has reached the proper temperature, the mercury in the gas chamber expands, and closes or partly closes the gas tube (which is made to extend down in the mercury chamber) to cut off or regulate the supply of gas to the furnace, for keeping the vulcanizer at the proper temperature. The gas 10 tube is provided with a screw thread and nut at the top for regulating its depth in the mercury chamber, and a spring or other analogous means is employed for holding it to its place. This heat regulating apparatus may be applied to any existing known form of vulcanizing chambers now in common use. 15 LONDON: Printed by George Edward Eyre and William Spottiswoode, Printers to the Queen's most Excellent Majesty. 1873.
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