Patent solar gas and gas apparatus, patented / by James Crutchett.

  • Crutchett, James.
Date:
1847
Catalogue details

Licence: Public Domain Mark

Credit: Patent solar gas and gas apparatus, patented / by James Crutchett. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    Certificate from the Engineer of the Bagging Factory of Cincinnati, Ohw. I hereby Certify, that I am an Engineer to the Bagging Factory of William Walker, Esq.. of Cincinnati, Ohio: that in addition to the Engine and Boiler of said Factory. I have, since December last, attended to a small fire in connection with a gas apparatus put up by Mr. Crutchett, in December last; that the Factory has been lighted thereby regularly since that period, and that it has regulated itself in the making of gas when used—consequently, although I have had the care of the apparatus myself, still I do not know the principle in and by which the same is manufac- tured ; that the gas gives a purer light than any I ever saw, and the attention to the whole occupies but little time, and, as far as I am able to form an opinion of the apparatus, consider it one of the most safe, useful and economical kinds. Witness my hand this 4th day of April, 184-4.. JONAS I. JONES. From the Hon. Commissioner Ellsworth's Report to Congress. GAS LIGHT FROM LARD, [OIL OR GREASE.] In forming a tabular statement of the relative expenses of gases for illumination, there will be found much to reconcile from dif- ferent chemists; and I think the best to be relied on, as having had most practice therein, will be Brande, Faraday, Ure, and Phillips, in England ; and Graham, Bridges, &c, in the United States; most of whom are now living. And from the fact that these gases are of rather recent use, the latest statements from them will be most useful, and in which the inventor of the apparatus in question [CrutceiettJ agrees. The above named all agree in their statements as to the density and illuminating power of coal gas, and oil gas, and cost of oil for lamps; and their statements are, that from 1£ to 2 cubic feet of oil gas is equal to from 5 to 6 feet of coal gas ; their density, also, is in similar agreement— namely, taking air at 1,000. All allow light carburetted hydro- gen, or coal gas, to be from 559-5 to 600, and the density of oil gas from 189.2 to 196.2 ; thus does the density of the illuminat. ing power corroborate the opinion usually assigned the two gases. In applying these to the gas made from lard, it must be remem- bered that the whole article—that is, stearine and oil—is converted as much as possible into gas ; and that its carbonaceous quality, in that case, is equal, if not superior, to other common oils ; in which case, the relative cost will be nearly ascertained from the follow- ing facts. The gas apparatus in question [Crutchett's] will supply 76 gas burners of great illuminating power, which burn 4 hours