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adhesive air-proof applied beds boots bottles Brockedon caout cement Charles Macintosh chouc cloth coated colouring matter combination compound thereof cork cotton cushions cylinder Different Shapes dissolved effect elastic employed essential oil fabrics facture fibrous substances glove gutta percha Hancornia Speciosa heat immerse improvements inch India rubber india-rubber layer or layers layers of fibres leather length liquid caoutchouc machine Macintosh manner manufacture masticated material means mentioned metal mixed mode moulds naphtha Native Shoes necessary obtained oil of turpentine operation ordinary Patent granted piece pitch plates pressure produce the change proportion purposes quantity rendered rollers saturated screw sheet rubber silicate similar Siphonia solution of caoutchouc solvent specification spread springs steam Stoke Newington straps sufficient suitable sulphur surface Surinam temperature thickness thin Thomas Hancock thread tion tubing Urceola elastica valves various varnish vessel vulcanised solutions vulcanized india-rubber vulcanized rubber waterproof whilst
Page 97 - He ended, and his words their drooping cheer Enlighten'd, and their languish'd hope reviv'd. The invention all admired, and each how he To be the inventor miss'd ; so easy it seem'd Once found, which yet unfound most would have thought Impossible...
Page 242 - ... is raised only from 310° to 320°, and the caoutchouc immersed in it from fifty to sixty minutes, the result will be much the same ; and if continued for two hours at the same temperature, the effect will be proportionably increased : and if continued longer, the caoutchouc becomes of a darker colour, and nearly loses its property of stretching ; and if carried still farther, turns nearly black, and has something the appearance of horn, and may be pared with a knife similarly to that substance.
Page 245 - Firstly, The combination of caoutchouc with silicate of magnesia, whereby manufactured caoutchouc is rendered free from that clammy and adhesive character which it usually possesses. Secondly, I claim the modes herein described of combining asphalte with caoutchouc ; and, Thirdly, I claim the treating of caoutchouc (either alone or in combination with other substances) with sulphur when acted upon by heat, and thus changing the character of caoutchouc as herein described.
Page 236 - Middlesex, waterproof-cloth manufacturer, " an improvement or improvements in the preparation or manufacture of caoutchouc in combination with other substances, which preparation or manufacture is suitable for rendering leather, cloth, and other fabrics waterproof, and to various other purposes for which caoutchouc is employed.
Page 241 - ... penetrated quite through the caoutchouc, which may be ascertained by cutting a portion of it asunder with a wet knife ; if the operation is complete, the colour of the caoutchouc will be changed throughout to a yellowish tint : if there is only a margin of yellow around the cut part the operation must be continued longer, until the colour of the whole is changed ; the sulphur adhering to the surface being scraped off, the caoutchouc will then have taken up a quantity of sulphur, from one-sixth...
Page 190 - ... or tying: I apply caoutchouc to the soles of boots, shoes, and clogs, by making either the whole sole of caoutchouc, or the inner or outer sole only, or by fastening a piece of caoutchouc between the soles ; and, in either case, boots, shoes, and clogs are rendered more elastic to the foot.
Page v - Britain . for the purposes of lighting apartments, and the streets of towns and cities, the manufacturers of the article found that the tar and other liquid products resulting from the process accumulated upon their hands, in the shape of a most disagreeable and inconvenient nuisance.
Page 190 - ... gather up very considerably. The case or pipe is then fixed in the wrist of the glove, so as to contract the glove to the size of the wrist, care being taken not to make the spring so strong, but that the glove will easily draw over the hand.
Page 190 - ... linings, to draw them closer round the wrist; to the mouth of pockets, to prevent their contents from falling out when in an inverted position, and prevent their being easily...
From Google Scholar
Mary Helena Allegretti
Paul Blanc - Occupational Health and Public Health
James L White, Noboru Tokita - 1967 - Journal of Applied Polymer Science
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LA Utracki - 1995 - Polymer Engineering & Science
Hancock's Personal Narrative