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Scientific American, Vol. 7, No. 16 (January 3, 1852) (1852)

leaf 3

An illustration from Scientific American, Vol. 7, No. 16 (January 3, 1852), 1852, leaf 3
o Ho- ste a i. eae Jel eases | is made to bear, the spring being secured to required. neybrook Post Office, Chester Co., Pa. ? ? i —_ more tines, from one piece of metal. The im- | and ventilate any desired parts but also sup- provement consists in a certain combination | ply a quantity of fresh… … ° ge } * i been necessary very frequently to throw sand ways or trame over which the chain and buck- cal. Great numbers of hot-air furnaces have The accompanying engraving represents a on the track. This has been remedied by ets move, may be depressed, and the buckets Heat Distributor and…

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