Miscellany

The following desciption of a stove upon a greally improved plan, is taken from the Genesco Farmer. A vvri'.cr in the same paper says in reference lo the etove, that one square f oot oficood ia sufficient to heat a room 18 by 24 fcet in winter weather daring the space o f 24 hours. SELF REGULATING STOVE. IXVEKTED BY E. FOOT, JO.N'. , SZXECA FALT.S A remarkable property possessed by this stove is that of governing its own heat, so as to maintain without vnriation, the precise degree wkich may be requiied. Within and near the upper part of the stove, is placed a brass rod - straight and inflexible. - Should the heat riso too high, the expansión of the rod, actingon a lever by which its motion is ïmich increased is made to close a damper that governs the odniission of air. Or shouid the heat fall too low, the contraction of the rod opens the domper and Iets in a fnll draft. - A sufficient quantity of fuel bcing placed in the stove, its burning is held in conBtant check by the close of the dnmper - consuming no foster than a vnnt of sufficient heat to keep it closed permits. Thus it keeps a uniform heat. The manner in which the degree of heat at which the stove shall mnintain itself is changed, is eqnally simple, though not so easily described. By meiely moving a pointar, different degrees of expansión, and of different degrees of heat are required to close or open the damper. A dial píate like the face of a clock forms a part of the front of the stove. On this are marked the different degrees of heat required and the index being turned to a degree, the stove will immedintely ndapt itself to that point, and there remain wiïhout variation. Had the invention stopped here. there would have been left a defect wliich probably would have destroyed its uselulness. Should ihe heat rise so high as to close the damper, and then from any cause continue to rise abovt thnt point, some part of the structurc must give way, or else be so looscly and impcrfcctly made os tö allow such a variation - or should the heat continue to fall after opening the damper, the same difficulty would be presented. We regret we cannot without drawings, convey to the reader the simple míinner in which these Jifliculiies are removed. The moment tho heat should rise above the point of closing the damper, the rod disconnects and detaches itself from it. andso remoins nntil the heat returns again to the same point - when immediately it reconnecis itself. and resumes its nppropriate duties. Or should the heat fall after opening the damper, the rod becomes difconnected muil a return to the sime point. This point rno-c than any other, will strike the attenlion of the Mechanic. lt is said to bc before unknown in mechanics, and is as remarkable for its simplicity as itsingenuity. The above has various other valuable qualities. It is estimated that from three-fourths to fivesixths of the heat from thn fuel consumed in an ordinary stove is carried off by the current passing through it to the chimney. In this slove no more air beinsadmütcd than is necessary to sustain the combustión, vcry linie current is made.ind nearly all the heat ia expended in the room. And besides, the smoke nnd einders bcing Ion reimned in contact with the fire are mostly con" The fuel in this stove bcing permittod to burn no la? ter thnn is wanied, cnough may be put in af once ,o „et 12 or 2A houra. Wood is conver.ed mtü a bed of chnreoal which gradually consumes hut nofaster than is required. A person nmy go irom home and leavc his stove ihrough tho day or through the night. nnd when he returns find it at prcctsely the same tempel ature ai which he left it.