Specification of Mary Townley : construction of chimneys, &c.

  • Townley, Mary.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Mary Townley : construction of chimneys, &c. Source: Wellcome Collection.

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    9 *■» A.D. 1810.—N° 3345. Townley s Improvements in the Prevention or Cure of Smoky Chimneys. what manner the same is to be performed, and to cause the same to be in rolled in His Majesty’s High Court of Chancery within two calendar months next and immediately after the date of the said Letters Patent, as in and by the same, reference being thereunto had, will more fully and at large appear. HOW KHOW YE, that in compliance with the said proviso, I, the said 5 Mary Townley, do hereby describe and ascertain the nature of my said Inven¬ tion, and the manner in which the same is to be performed as follows, that is to say:—• That part of the plan marked A supposes the top of a chimney, shewing three flues in a single stack. That part of the plan marked B supposes the 10 shaft of the chimney A, shewing the brackets immediately above which sup¬ port the canopy or dome in that part of the plan marked C, and which is to be fixed on the top of the brackets quite close, so that no smoke can pass from one flue to the other. Those parts of the plan marked D suppose the profiles of the brackets, which may be made either by potters earth and burnt, 15 or by the bricks projecting and plastered with cement, or may be made in various other modes, and a truss or bracket formed as fancy may guide the workman, and as supposed in that part of the plan marked E. That part of the plan marked F, supposes a chimney top shewing six flues in a double stack, and also shewing the partitions which divide the flues and support the 20 canopy or dome, and of which particular care must be taken; they are so closely cemented together that the smoke may not pass from one to another; and to mind that the flues are all independent of each other and likewise to observe that there is not any cavity whatever in the chimney. It is necessary to remark that if the covering should not prevent the chimney from smoking, 25 then the application of the tube marked II, as shewn in that part of the plan marked G, will cause an effectual cure, the diameter of the tube to be three inches, and the mouth of it to be formed similar to that of the mouth of a French horn instrument, which is to be covered with a wire grate not less than one inch square, that the air may not be impeded and that birds, &c. may be AO kept out. In witness whereof, I, the said Mary Townley, have hereunto set my hand and seal, this Fourth day of August, in the fiftieth year of the reign of our Sovereign Lord George the Third, by the grace of God, of the United Kingdom of Great Britain and Ireland, King, Defender 35 of the Faith, and in the year of our Lord One thousand eight hundred and ten. MARY TOWNLEY. (l.s.)