A manual of dental mechanics.

  • Coles, Oakley, 1845-1906
Date:
1873
Catalogue details

Licence: Public Domain Mark

Credit: A manual of dental mechanics. Source: Wellcome Collection.

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    heat and economising of the heating material, whether it be gas or spirit. This, again, has received great attention, and an infinite variety of blowpipes have been invented in order to obtain the best result. One of the simplest of these is known as “ Owen’s Blowpipe,” and is shown in Fig. 14. The gas and air are dis- charged by two tubes running parallel with each other. Another, invented by Mr Snow, is seen in Fig. 15, and possesses the advantage of keeping a small jet of gas alight when hung up by the ring in the upper tube. A simple form of blowpipe has also been Fig. 14.
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