AN IMPROVED VENTILATING APPARATUS
Year: 1872

page_text: PROVISIONAL SPECIFICATION left by William Robert Lake at the
Office of the Commissioners of Patents, with his Petition, on the
6th July 1872.-A communication from abroad by Antoine Leopold
Chèradame, Alexander Eugène le Dreux, and Victor Charles Jules
Oursel, all of Paris, France.
I, WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co.,
Patent Agents, Southampton Buildings, London, do hereby declare the
nature of the said Invention for "AN IMPROVED VENTILATING APPARATUS,"
a communication, to be as follows:-
-
The present Invention relates to a ventilator or fan which is sus-
ceptible of numerous applications.
This ventilator or fan according to the application desired to be made
may be variously formed and arranged, but it consists always of a helix
formed with a greater or smaller number of blades or wings mounted
upon a shaft. These wings which are made of wire cloth, taffeta,
gauze, or any other light material, constitute the ventilator properly
so called.
C
L of atom

page_text: 1.
as to occupy the smallest possible space compatible with the required
displacement of air.
My improved ventilator may be adapted, first, to music stools, foot
stools, easy chairs, and seats generally, the air escaping through apertures
duly provided; second, to flower vases used for the decoration of tables;
third, to baths, in this case it should be placed upon a small board
resting with a capability of sliding upon the edges of the bath, in such
manner that it may be made to approach or recede from the face at will,
this approaching or receding is preferably effected by the aid of a cord,
the ventilator being suspended; fourth, to the balconics and boxes of
theatres, where it may be placed between the lining and the solid part;
fifth, to music stands or desks; sixth, to food safes, for preserving meat
and other viands; seventh, in very small dimensions to bouquets for the
hand. And generally to all objects, places, or situations where a gentle
ventilation or fanning would be useful or agreable.
In order that the Invention may be fully understood, I have
illustrated in the accompanying Drawing several applications of the said.
ventilator or fan.
Figure 1 is an elevation, and Figure 2 a plan of a foot stool to which
the said ventilator is affixed. In Figure 2 the top of the stool is
omitted to permit the arrangement of the ventilator to be seen. a, a,
are the wings made as light as possible and mounted upon a shaft b
forming part of the clockwork c, secured to the interior of the stool d;
fis a vibrating bar for stopping the rotation of the wings a.
Figure 3 illustrates the application of the said ventilator to a bath.
h is the bath; is the small board resting upon the edges of the bath;
jis the ventilator supported on the board i.
Figure 4 shows the said ventilator inside the balcony of a box in
a theatre. k is the box; 7, the balcony of the box; m is the ventilator
arranged vertically in the balcony between the velvet and the solid
part.
Figure 5 is an edge view, and Figure 6 a front view partly in section
of the ventilator arranged to be operated by an hour glass. n is the
hour glass, which may be of any suitable construction, and whose two
sides are separated by a circular space o, through which is passed a
shaft p. At one or both extremities of this shaft and outside of the

page_text: hour glass is keyed a set of wings r. In the circular space o and upon
the shaft p is keyed a pallet wheel s, which by the aid of the inclined
planes receives on one side the sand which falls from one part
of the hour glass to the other and thereby has imparted to it a
rotary motion which it transmits to the arms i. The hour glass is
reversed in the ordinary manner to maintain a continuous motion.
Figure, 7 illustrates the application of this ventilator or fan to a bath,
the said ventilator being caused to approach or recede from the face
by the aid of a rod and arrangement of cords similar to those employed
for drawing curtains. is the bath; v is the ventilator, similar to that
shown in Figures 5 and 6, or in Figures 1 and 2. It is fixed on the
lower extremity of the vertical rod x, whose upper extremity is fitted to
slide upon a horizontal rod y by the aid of the cords z, conveniently
arranged for the required purpose.