Show an improvement in iron furnaces nace an improvement in tho the construction of annealing anncil inn furnaces has been introduced by s some ome of the tile london metallurgists an anil I 1 by me ill of which as it a appe alls a prompt a t turn on and considerable saving are insured the tile method behig ampil applicable ca ble alike to sheet anncil ing hollow ware malleable I 1 iron ron and sheet till or steel in tile ease of the tile first tho tile time being shortened by tonic ra M per cent besides other adeall t in n order to secure such results the furnace Is mada made to consist of four au lutei ter wall Y athin which by the erection of two side de walls and one end wall is it 1 i furnard furn air i arc ft or annealing oven the fl flannes arnes aad sail hit h eted LI gases from the outer satoe sp ice pasa pass thiron li numerous nuni erous perforations in ili the two flo agn into the middle chamber amber cli and alin through nil all this spacers cip by bottom flues furnished er to i he lie chimney stack only oi j one 01 e fire ire is 14 and the pot con t the lit articles to bo be annealed by thia this subjected to i it uniformly distributed tri buted beat as the result of which the por davs i snot not buffer from fromi undue strains or bui bu lin ling and in consequence it lists fasts a longer ions r time the uniform distribution distribution of i the b licit c at obtained by this means insures till Du elling a ling in inna a shorter horter time and awl likewise ci en t s a i red reduced bonau consumption m eption of fuel both V 0 winch are important considerations nv ri york sun suit |