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Harper's Encyclopedia of United States History (ed. Benson Lossing) 2 2 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 2 2 Browse Search
HISTORY OF THE TOWN OF MEDFORD, Middlesex County, Massachusetts, FROM ITS FIRST SETTLEMENT, IN 1630, TO THE PRESENT TIME, 1855. (ed. Charles Brooks) 1 1 Browse Search
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Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for April 25th, 1846 AD or search for April 25th, 1846 AD in all documents.

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Knight's Mechanical Encyclopedia (ed. Knight), H. (search)
leaned, blocked, colored, shaped, and pounced, the body is ready for the finishing process. The great improvement of the perforated exhausted cone, with its attendant slotted blowing cylinder, is due to H. A. Wells, by whom it was patented April 25, 1846. Williams, in England, had previously employed a partially exhausted cone in connection with a carding-machine for making hat-bodies from tow or waste silk. See blowing-machine, p. 307. In this country, fur, mixed with a little SeaIsland loosening — up fiber and depositing it on a former, so as to form the hat-body. Various machines of this kind have been invented, embracing the same general principles, but differing in detail. That illustrated was patented by H. A. Wells, April 25, 1846. In this the fur, in regulated quantity, is supplied to the machine between a pair of feeding-belts m m′, and caught from the lips of the belts by a rotating brush or picker c, which separates the fibers and delivers them into the tunnel d,