Improvements in or connected with Ventilating Apparatus for Houses, Restaurants and the like.
Year: 1898

page_text: Date of Application, 2nd Feb., 1898-Accepted, 26th Mar., 1898
Improvements in or connected with Ventilating Apparatus for
Houses, Restaurants and the like.
I, JOSEF WÖRZ, of Ulm on the Danube, in the Empire of Germany, Manufacturer,
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:-
This invention has for its object a ventilating apparatus which is shown in the
accompanying drawings, in which Figure 1 is a front elevation; Figure 2 a side
elevation and Figure 3 a front elevation with the case or cover removed; Figure 4 a
vertical section on the line x-x of Figure 3; and Figure 5 a horizontal section on
the line y-y of Figure 3; Figures 6 and 7 are respectively a cross section and side
view in partial longitudinal section of a modified form of the arrangement, whilst
Figures 8, 9 and 10 are details.
This apparatus consists of a combination of a clockwork A, Figure 3, with a fan
ventilator B and is mainly intended for use in restaurants, dwelling houses and the
like.
The clockwork A and the fan or ventilator B are contained in a common casing C
from which the ventilator pipe c, Figure 4, branches off at right angles in order to be
passed through the wall D of the room to be ventilated into the open air or be carried
into a ventilating shaft. The case or cover C or the front wall of the same is opened
in front at cl at the level of the ventilating pipe c or is perforated in a suitable
pattern so that the ventilator B can draw air through these openings or perforations c¹
from the chamber to be ventilated and expel it through the pipe c.
The ventilating pipe c is capable of being closed by means of a flap or damper E
pivoted on a spindle e, and this is effected by pulling a chain e¹ in the direction
indicated by the arrows in Figures 1, 2 and 3, said chain forming the continuation of
a cord e², Figures 4 and 5, attached to the flap E. A counterweight 3 is also attached
to the flap E in such a way that the flap E automatically opens as soon as the chain e
is released.
The operation of the ventilator from the clockwork takes place preferably by means
of a coiled spring F. This coiled spring in fact plays the part of a compensator as it
alternately expands and contracts on sudden slackenings or accelerations of the going
of the clockwork A so that the ventilator always has a constant average speed of
rotation independent of the various speeds of going of the clockwork.
In place of such a spiral spring any of the so-called flexible shafts of any suitable
form of construction or a toothed gearing, belt gearing or the like may be employed.
The winding up of the clockwork is effected by means of an endless chain g which
travels over a chain wheel G or by means of an endless band, cord or the like which
is moved in the direction indicated by the arrow in Figures 1 and 3 to turn the
wheel G.
In order to enable the ventilator B to be stopped at any suitable time, the driving
shaft H of the clockwork A connected with the shaft F is provided with an arm h,
Figure 3, whilst a lever K weighted with a counterweight k² and operated by means
of a chain 2 is provided in the casing C, the said lever K pivoting on a spindle k.

page_text: The arrangement is such that in the position of repose, the lever K rests under
the action of the weight k¹ on a. pink and thereby projects into the track of
the arm h rotating with the shaft. H, and therefore the armh encounters the
free end of the lever K and the clockwork and therewith the ventilator B are brought
to a standstill. If it be desired to start the apparatus, the chain k² is drawn down-
wards in the direction of the arrow in Figure 3, until the lever K encounters the
pin 3. When this takes place the lever K releases the arm h, and thus the shaft H
and thereby the clockwork A can again run freely and drive the ventilator.
The arrangement may also be such that the valve E and the lever K may be
operated by a common chain 2. Such an arrangement is shown in Figures 6 and 7,
in sectional front and side elevations which show the parts of the apparatus necessary
for understanding the form of construction of the device and also in Figures 8-10
which are front, plan and side views respectively of the details on an enlarged
scale.
In this case the lever K which starts the apparatus is formed as a one armed
lever K pivotting on a spindle k, on which lever a draw cord e² connected with the
flap E is so attached that the lever is usually maintained in a raised position under
the action of the weight 3 of the flap E, in which position the arm (Figures 7-10)
mounted on it projects into the track of the arm h of the shaft H stopping the latter
and thus arresting the clockwork.
If on the other hand the cord k² be drawn downwards, the lever K swings with its
arm k¹ out of the way of the arm h of the shaft H and the clockwork.begins to go.
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. A ventilating apparatus for houses, restaurants and the like, consisting in the
combination of a ventilator (B), with a clockwork (A.) which when thrown into action
is adapted to set the ventilator (B) in rotation substantially as described.
2. A ventilating apparatus such as herein before described, in which the throwing.
in and out of gear takes place by means of a lever (K). by the said lever being moved
out of the course of an arm. (h) mounted on the driving shaft (H), of the clockwork so
that the arm and the shaft may rotate, and. the clockwork may go,, or by the said
lever (K) being moved into the course of the said arm (h) so that the arm (h)
encounters the lever (K) and, thus prevents any further. rotation of the clockwork
substantially as described.
3. A ventilating apparatus such as hereinbefore described in. which the cord (e²)
for the closing damper (E) of the ventilating tube (c) is also connected. with the
stopping or starting lever (K) of the clockwork, so that by drawing down the said
lever (K) and thus stopping or throwing out of action the clockwork (A), the
damper (E) is also opened, substantially as described.
4. A ventilating apparatus such as herein before described, in which the connection
between the clockwork (A) and the ventilator (B) is made by means of a coiled
spring which is collapsed or extended somewhat on alternating differences of speed of
the clockwork, and thus acts as a kind of compensator and allows of the ventilator (B)
always having a constant average speed, substantially as described.
Dated this 1st day of February 1898.
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WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.