366 HEATING APPARATUS. 



were the following day to be forwarded from London to 

 Paris ; while the numerous orders were more than he 

 could execute. One in use at the ' George and Vulture ' 

 Tavern, of a Gothic shape, handsomely ornamented 

 with brass, about two-thirds the size of the one in 

 Mr. Gilbert's hot-house, burns 7 Ibs. of coal a day, 

 keeping the room at 65 degrees of heat during fifteen 

 hours. The rage amongst the ladies was to have them 

 handsomely ornamented. 



Believing that they would be remunerative, he ap- 

 plied for the following English patent in February, 

 1831. 



Apparatus for Heating Apartments. Zlst February, 1831. 



" Now KNOW YE, that in compliance with the said proviso, I, 

 the said Richard Trevithick, do hereby declare that the nature 

 of my said invention of a method or apparatus for heating 

 apartments, and the manner in which the same is to be carried 

 into effect, is shown by the following drawings and description, 

 where Fig. 1, Plate XVI., represents a longitudinal vertical sec- 

 tion through the middle of a metallic vessel capable of containing 

 a considerable quantity of water, with a fire-place in .the inside, 

 surrounded with water in all parts except at the doorway and at 

 an opening where the smoke may pass off into a common chimney. 

 Fig. 2, a vertical section near the fire-door, at right angles to the 

 section shown at Fig. 1 ; with the sections are also shown wheels 

 and handles, which lie out of the planes of the sections. The 

 letters of reference indicate the same parts in both figures, a, 

 the vessel ; &, the space for containing the water ; c, the fire- 

 place ; d, the fire-bars, or grating ; e, the ash-pit ; /, an inner 

 door, to prevent the air from entering over the fire, yet allow it 

 to pass into the ash-pit, and thence up to the fire through the 

 grating ; g, an outer door, to be shut when the fire is to be 

 extinguished ; h, a chimney or fine, to convey the smoke into 

 a common chimney : this flue may be removed when the water 

 boils, and then the opening of the flue may be shut, to keep in 

 the heat, either by a door or by a plug fitting the opening ; 



