Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,710 pages of information and 247,104 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
204. PANNELL, JOHN, Feltham, Hounslow.
Working model of registered heating apparatus, for heating hothouses, pineries, etc., by hot water; whereby a moist bottom heat and a dry top heat can be obtained at the same time from the same boiler; and the circulation round the pipes, for top heat, can be turned off or on at pleasure.
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