Specification of Charles Whitlaw : administering medicine by the agency of steam or vapour.

  • Charles Whitlaw
Date:
1856
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Charles Whitlaw : administering medicine by the agency of steam or vapour. Source: Wellcome Collection.

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    . Whitlaws Impts. in Administering Medicine by the Agency of Steam or Vapour. vegetables in their recent state, or when freshly gathered, without previously drying or pressing them, as above mentioned, although I generally prefer to use those so prepared, on account of their producing more beneficial effects, and being more mild in their operation. The steam or vapour employed by 5 me in administering vegetables as medicines I can produce in any of the usual and well-known methods, but I prefer, for the sake of economising fuel and other advantages, to employ a steam boiler and furnace of the construction shewn in the Drawing at Figs. 7, 8, 9, 10, 11, 12, and 13. A, A, A, is the boiler, made of copper, wrought iron, or other fit and proper 10 metal. I prefer to form this in an oval shape, as shewn in the different Figures, for the sake of placing the greater part of the water above the fire, leaving enough water below, however, to protect the different parts from being- overheated, and for the same reason I also make the fire-place B, B, of an oval figure, and place it as low as may be in the boiler. The chief part of 15 the fire-place is made of copper or wrought iron, but the grate C, C, is formed of cast iron, as well as the front end of it D, which is fitted up with a door E and air register F, the hinder or inner end of it being closely fitted to the lower part of the fire-place B, B, in order to compel the heated air to pass through the grate and over the end of it in its way to the flue or 20 chimney. The fire-place is united to the boiler in front by means of flanches, screws, and nuts, as shewn in Fig. 10, and at its hinder end, which is con¬ tracted below to form a flue, by tinning it and soldering it into an inverted neck G made at the back of the boiler A, A, and which joining being kept constantly surrounded with water is prevented from becoming unsoldered. 25 The boiler has a man-hole and safety valve fitted to it by screws at H in the usual manner, and is provided with gauge cocks at I, I, Figs. 7 and 9, for ascertaining the quantity of water in it, as well as another cock at J for drawing off the whole of the water when the fire is removed, and it is mounted upon feet K, K, with rollers or castors fitted to them for the sake 30 of conveying it to or placing it in any convenient situation for use. The steam or vapour generated in the boiler is conveyed through the pipe L, Figs. 7, 9, and 13, furnished with a cock M and a turning joint N into the basis O of the tent P, Figs. 14, 15, 16, and 17, and either passing in its way through the three-wayed cock Q, Figs. 15 and 16, and the construction of 35 which cock is shewn in the two enlarged sections of it. Figs. 18 and 19, in which R is the plug of the cock, and S its handle, shewn by dotted lines in Figures 18 and 19; T, the entrance tube; and U, V, the two branches leading from it; W, the hole or passage through the plug R, and which* when the plug is turned into the position shewn in Fig. 18, conveys the steam
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