A New or Improved Regulating Valve for Use in the Tube Ventilating Apparatus. "
Year: 1895

page_text: Date of Application, 11th June, 1895-Accepted, 3rd Aug., 1895
A New or Improved Regulating Valve for Use in the
Tube Ventilating Apparatus.
"Tobin"
1 MARY BULLAR, of Bassett Wood, Southampton, in the County of Hants,
Gentlewoman, 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 :-
66
This invention relates to a new or improved regulator valve for use in the
Tobin" tube ventilating apparatus for automatically controlling the admission of
the air into the apartment, and in order that the same may be fully understood and
readily carried into effect I will describe said invention with reference to the
accompanying drawings marked thereon.
Fig. 1 is a sectional elevation of an air tube illustrating the application of the
new or improved regulator valve constructed in accordance with this invention.
In this figure the valve is shewn open.
Fig. 2 is a similar view of the tube and valve but in which the valve is shewn
closed.
Fig. 3 is a perspective view of a device which may advantageously be used in
connection with this invention for the purpose of closing the valve entirely
at will.
Referring particularly to Figs. 1 and 2 of the drawings, a is a wire frame fixed
horizontally within the tube and to which are attached two flaps c c, the
hinges c c of which are close together, and which are placed across the tube.
When open the Haps cc hang down as shewn in Fig. 1 at an angle of about
45 degrees. They are balanced by weights d d underneath them, so that when the
wind blows up the tube with more than a certain force either one or both flaps c c
are blown up to the horizontal position shewn in Fig. 2 and so close the tube.
Preferably one flap is made heavier than the other so that with a very strong
current of air both may be closed whereas with a somewhat lighter current only
one would be raised.
When it is desired to keep the tube closed altogether a convenient device for
raising the flaps of the valve and of maintaining them in the raised position is
illustrated in Fig. 3. This device 1 fix underneath the regulator valve just
described and it may conveniently consist of two arms A A carried upon a hinge B
fixed between a metal strip C and a wire D. On this latter runs a ring E formed
at end of the hinge spindle F. Upon F are hinged the two arms G which when
raised lift up the expanding arms A A of the device and thereby close the flaps c c
of the regulator valve.
Dependent from the hinge F I have the handle H which drops outside the tube
and which is formed with a spur or projection I. When the device is raised the
spur may be made to lodge upon the lower part of the metal framing C¹ and so
maintain the regulator valve in its closed position so long as may be required.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. The new or improved regulator valve for use in the "Tobin" tube ventilating
apparatus substantially as herein before described and shewn in the drawings.

page_text: 2. The construction and combination of hinged flaps c c with counter balance
weights dd placed within the "Tobin" tube and arranged and operating
substantially as and for the purposes herein before described and shewn.
3. The combination with the automatically acting regulator valve for use in the
Tobin tubes, (shewn in and described with reference to Figs. 1 and 2 of the
drawings) of the closing device constructed and arranged substantially as herein-
before described and shewn with reference to Fig. 3 of the accompanying
drawings.
Dated this 11th day of June 1895
HUGHES, SON & Co.,
38, Chancery Lane, W.C., Agents for the Applicant.