Specification of William Crane Wilkins : ventilating apparatus, gas burners, &c. : lamps, gas stoves, and heating apparatus : manufacture of candles.

  • Wilkins, William Crane.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of William Crane Wilkins : ventilating apparatus, gas burners, &c. : lamps, gas stoves, and heating apparatus : manufacture of candles. Source: Wellcome Collection.

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    Wilkins Impts. in Ventilating, Heating, and Lighting in Lamps, namely, in the direction shown by the arrow; the power necessary to rotate the drum is intended to be very slight, and is obtained from the tendency of the vitiated and heated air to pass into the chimney, which passing through the inclined opening e of the box strikes and presses against the floats g, g, in suc- 5 cession, and onward into the chimney c. A click prevents a current of wind or air in a downward direction rotating the drum in the reverse direction, and thereby passing through the ventilator into the apartment. Secondly, an im¬ proved ventilating apparatus applicable to the windows and other parts of apartments. Sheet A, Figure 4, represents a front view of a ventilator, and 10 Figure 5 a section through the line 1, 1, of Figure 4; it may be applied to the window or to the door, or to any other part of an apartment for the purpose of ventilating it. The strips or narrow plates of glass a, a, have small metal frames b, b, attached to their ends, by which the glass strips are securely held; these frames have each two small studs or pins projecting from them in the 15 direction of the length of the strips or plates a, a ; these studs are received into holes in the vertical metal pieces c, c; these are connected together by the bars or connecting pieces d, d, which are jointed to them, and upon which they move, in construction exactly similar to an ordinary parallel rule; studs pro¬ jecting from the inside of the frame e9 e, pass through holes in the middle of 20 the connecting pieces d, d, and upon which they move. It will be seen that the strips or plates of glass, whatever the extent of opening between them, will be in relative parallel positions, and by moving the vertical pieces c, c, up or down, the extent of opening between the strips or plates may be adjusted and regulated, or may be entirely closed when desirable. An improved construc- 25 tion of glass ventilator, adapted for ventilating apartments, is also shown in Figures 6 and 7, which represent, the one a front view, and the other a section ; it consists of the frame a, a., the size or dimensions of which depend upon the size of the glass plates b> b\ which are mounted within the frame a, a, by means of the smaller frames c, c, to each of which one of the plates of glass is fixed 30 by one of its edges, projecting pins, or studs from the ends of the frames c, c, passing into holes in the sides of the frames a, a, by which means the plate b will be mounted upon the upper end of the frame a, a, and the plate b1 upon the lower end of it; a sliding bar or plate d connects the two smaller frames c9 c, so that movement given to one of them will communicate a corresponding 35 movement to the other, which may be given by means of the cord e attached to the apparatus in a manner suitable for effecting that object. When the ventilator is closed, the glass plates b, b1, will be close together, a portion of one overlapping a portion of the other, and as the ventilator is opened they will recede, the one in one direction, the other in the other, as shown by dotted