. Journal. or other metal or alloy. P. B. Tavlor. Briton Ferry,S, Wales. Eng. Pat. 12,3U, Aug. 26, SET of finishing roUs revolve in the flux, one ormore of the lower roUs being of a different materialfrom the top pair of tinning rolls. The lower rollseither do not take a coating of tin. or they permitthe tin to drain from them more cjuickly than fromthe top rolls. The rolls on one side of the platesmav be such as to produce a coating of differentthickness from that on the other side. A cleaning,wiping, or distributing roU may be provided incontact -with the tinning roU, -with or without
. Journal. or other metal or alloy. P. B. Tavlor. Briton Ferry,S, Wales. Eng. Pat. 12,3U, Aug. 26, SET of finishing roUs revolve in the flux, one ormore of the lower roUs being of a different materialfrom the top pair of tinning rolls. The lower rollseither do not take a coating of tin. or they permitthe tin to drain from them more cjuickly than fromthe top rolls. The rolls on one side of the platesmav be such as to produce a coating of differentthickness from that on the other side. A cleaning,wiping, or distributing roU may be provided incontact -with the tinning roU, -with or without »trous^ ioT molten metal.—W. JF. F. d3 102S Cu Z.—METALS: METALLDBQY, INCLUDING ELECTBO-METALLDRQY. [Oct. 16, 1919. Furnaces ; Hfaiiiig [for metals]. R. F. Hislop, Paisley. Eng. Tat. , Oct. 28, front wall. b. of the firebox, n, rests on a beam,rf, spanning the ash-pan and liaving a plate, g,(lipping into a water seal. .Vn inverted \-shapedgrate, i, is provided, and the produi-ts of com-. bustion pass over the bridge. /, and throughopenings. V. to the longitudinally divided com-bustion chambers, h. which are proviiled withribs. A-, to deflect the gases on to the materialon the floor. The gases then pass by the , controlled by dampers, x. to three parallelflues, t. and thence to the chimney, t. The flues,/, contain coils, z, for heating the air supply to thegr»t«, i. and to the liridgc. /. and also a coil forgenerating steam to be supplied to the grate. —W. F. F. Furnaces; Utilising waste heal from open-hearth . R. M Snvder. WUkinsburg, Pa. Pat. Aug. 22. 1916. Date of appl.,Dec. 27, hot waste gases from two open-hearth furnacesare drawn by two similar fans through separateregenerators to two boilers. The supply of gasesto the boUers is equalised by providing a crossconnection between the two conduits.—W. F. F. Smelter or ore furnace ; Apparatus for utiltsing the heated fames from a O. P. Luedke, Chatham. 111. P
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
