Year: 1885

page_text: I, JAMES MOCONACHY, of 47 Ardgowan Street, Port Glasgow, in the County of
Renfrew, North Britain, Joiner, do hereby declare the nature of this invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement, that is to say :-
My said Invention has for its object to improve the construction and action of
ventilators or air valves for regulating the ingress, or egress, or passage of air.
My improved ventilators are suitable for ships' cabins or state rooms, for railway
carriages, and for other apartments or enclosed spaces; and an important advantage
possessed by them when used for regulating the ingress of air from the outer
atmosphere, consists in their capability of being adjusted so as whilst admitting
air to prevent or baffle the entrance of rain.
Examples of my improved ventilators are shown on the accompanying sheet of
explanatory drawings, figure, 1, being an inside elevation of one form and figures, 2,
and 3, transverse vertical sections taken respectively as at the lines, A-A, and
B-B, in figure, 1. Figure, 4, may be regarded as an outside elevation of a venti-
lator having its inner side like figure, 1, or as an elevation (either inside or outside)
of a modification in which both sides are alike. Figure, 5, is a transverse vertical
section as at C-C, in figure, 4, (but with the movable part full open) and figure, 6,
is a transverse vertical section as at D-D, in figure, 4. Figure, 7, is a horizontal
section as taken through a row of openings in figure, 4. In these drawings the
same reference numerals are used to mark the same or like parts wherever they
are repeated.
In the modification of my improved ventilator shown in figures, 1, 2, and 3,
there are fitted within a rectangular frame, 10, which may have its length and
depth in any convenient proportions, a fixed outer plate or board, 11, having
horizontal angular grooves formed on its outer and inner sides so as to present a
series of bevilled or angular surfaces. On its outer side the plate or board, 11, has
also vertical angular grooves formed on it; and these being at right angles to the
horizontal grooves form with them a series of pyramids, and cut through into the
horizontal grooves on the inner side so as to form holes or ports which are shown
black in figure, 1. In contact or nearly so with the outer plate or board, 11, there
is fitted so as to be movable horizontally in the frame, 10, an inner plate or
board, 12, similarly formed to the outer plate or board, 11, and a handle, 13, is
[Price 621

page_text: fixed to this inner plate or board, 12, by means of which it can be adjusted. In
the modification shown in figures, 4, 5, 6, and 7, the parts within the frame are
simply duplicated the plates or boards, 14, 15, corresponding to the outer and inner
plates or boards, 11, 12, of the first modification being reversed, and the two inner
plates or boards, 12, 15, being fixed together and moving together. Figures, 1, 2,
and 5, show the ports or openings full open; whilst in figures, 4, and 7, the ports
are shown partly open.
Thus if the external air current is in the direction of the
arrow, 17, figure, 7, and is accompanied by rain, the air will enter in the direction
of the arrow, 18, whilst the rain will strike on the surfaces, 19; and if the double
arrangement is adopted as in figure, 7, the air will again have its direction changed
as shown by the arrow, 20, in passing through the inner plates or boards, 15, 14.
If the external air current is in the opposite direction to the arrow, 17, the inner
plates, 12, 15, must be adjusted so as to be at the other sides of the ports in the
outer plates or boards, 11, 14.
My improved ventilator presents a neat ornamental appearance both externally
and internally; and it requires no external hood to prevent the entrance of ruin.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
The improved construction of ventilators or air valves substantially as herein-
before described.