212 MACHINE FOE VULCANIZING 



the funnel, and neither burn nor scald yourself, 

 even when the apparatus is working at 300°. In 

 fact the apparatus will wear till it is as thin as 

 tissue-paper. This is one of a series of my 

 patents. I have also steam-baths attached, and I 

 am at present bringing out a patent for self- 

 paclcing boxes, and hoped to have been able to 

 produce one before you this evening, had the 

 maker not disappointed me. By means of such 

 a contrivance, no packing is required beyond 

 what is done by the apparatus itself This, with 

 two or three other things, forms a supplementary 

 patent, which I have found it necessary to take 

 out in order to protect my interests. This will 

 also be capable of being used in connection with 

 high pressure. It is just possible to overpack a 

 piece, and to bestow too much trouble and labour 

 upon it. I may say, in conclusion, that vulca- 

 nizing in connection with this apparatus is a com- 

 paratively easy process. 



I had almost forgotten to refer to a little boiler 

 which I have here for generating steam, and which 

 may be used in connection with my apparatus. 

 These apparatuses were made more particularly 

 with a view to the working of my new base — the 

 Osteoplastic base. [Mr. Patrick then exhibited a 

 small test-piece of his new base, which very closely 

 and beautifully resembled a piece of bony sub- 

 stance.] A ring above the burners, pierced hori- 

 zontally, traverses the bottom of the apparatus. 



