Scientific American Patent Agency, July 22,1862, to the inventors, J. H. and G. W. Smithwho have assigned it to J. H. Smith, and furtherinformation in relation to it may be obtained by ad-dressing the assignee, at Port Chester, N. Y. BLYTHES VENTILATING CAP. Among the practices which generally… … The annexed cut represents a ventilating cap, in-vented by J. 0. Blythe, of Philadelphia, which maybe drawn open to admit of a free circulation of air inhot weather, and may be readily closed for protectionagainst the rain. It is formed of two parts wbichare represented as completely separated, but…
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