IMPROVEMENTS IN AND CONNECTED WITH WATER WHEELS FOR DRIVING VENTILATING APPARATUS OR FANS
Year: 1884

page_text: I, PETER JENSEN, of 33, Chancery Lane, in the County of Middlesex, Fellow of
the Institute of Patent Agents do hereby declare the nature of said Invention
for "IMPROVEMENTS IN AND CONNECTED WITH WATER WHEELS FOR DRIVING
VENTILATING APPARATUS OR FANS" to be as follows:-
Ventilating apparatus or fans constructed according to this invention are
combined with and driven by a small overshot water wheel all as hereinafter
described.
The overshot wheel is fixed on a horizontal spindle working in bearings; the
wheel is provided with a number of equidistant buckets of triangular form, that
is to say, largest at the water inlet end and tapering to a point, so that the water
entering a bucket at the top of the wheel is carried down therein almost or nearly
to the bottom. On the same wheel or wheel axle and by preference within the
same circular casing is fixed a ventilating fan with blades of any convenient form.
In this way not only the pressure or blow of the water jet but also the weight of
the water entering the buckets are made to drive ventilating fans directly, whereby
a greater efficiency is attained than where as heretofore usual only the pressure or
blow of the water is made to act.
The jet pipe is fixed by soldering or otherwise in the proper slanting position
in a cover plate which exactly fits the casing of the apparatus and can be removed
when the jet pipe has to be cleaned, without taking the whole apparatus or the
barely accessible interior parts to pieces. The jet pipe is provided with a tube
shank leading directly into the nozzle of the jet pipe and with stoppered end; by
removing the stopper and blowing through from the nozzle of jet pipe any dirt
that may have accumulated in the nozzle is removed. This forins an important
practical feature of the invention.
In order to prevent the noise occasioned by the rush and cutting action of the
jet against the sharp outer edges of the buckets during the rovolution of the wheel
the said edges are lapped round with some suitable nonconducting material such as
asbestos millboard.
Dated this twelfth day of January 1884

page_text: I PETER JENSEN of 33 Chancery Lane in the County of Middlesex, Fellow of
the Institute of Patent Agents do hereby declare the nature of said invention
for "IMPROVEMENTS IN AND CONNECTED WITH WATER WHEELS FOR DRIVING
VENTILATING APPARATUS OR FANS and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement :-
"
Ventilating apparatus or fans constructed according to this invention are
combined with and driven by a small overshot water wheel all as hereinafter
described.
Figure 1 is a vertical transverse section, and Figure 2 vertical longitudinal
section through a combined fan and water wheel constructed according to this
invention.
The overshot, wheel 2 is fixed on a horizontal spindle S working in bearings 1
the wheel is provided with a number of equidistant buckets 4 of triangular form,
that is to say, largest at the water inlet end and tapering to a point so that the
water entering a bucket from the inlet D and jet pipe 5. at the top of the wheel
is carried down therein almost or nearly to the bottom. On the same wheel or
wheel axle and by preference within the same circular casing C as here shown
is fixed a ventilating fan 9 with blades of any convenient form. In this way
not only the pressure or blow of the water jet from the jet pipe 5 but also the
weight of the water entering the buckets are made to drive ventilating fans
directly, whereby a greater efficiency is attained than where as heretofore usual
only the pressure or blow of the water is made to act.
The jet pipe 5 is fixed by soldering or otherwise in the proper slanting position
in a cover plate K which exactly fits the casing C of the apparatus and can be
removed when the jet pipe has to be cleaned, without taking the whole apparatus
or the barely accessible interior parts to pieces. The jet pipe 5 is provided with
a tube shank leading directly into the nozzle of the jet pipe and with stoppered
end; by removing the stopper A and blowing through the nozzle of jet pipe any
dirt that may have accumulated in the nozzle is removed. This forms an important
practical feature of the invention and avoids the employment of a sieve and of two
cocks, unless the water be abnormally dirty. 8 is the outlet pipe.
In order to prevent the noise occasioned by the rush and cutting action of the
jet against the sharp outer edges of the buckets 4 during the revolution of the
wheel the said edges are lapped round with some suitable non-conducting material B
such as asbestos millboard.
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 as the invention communicated to me is—
1. In the casing of a water wheel fan the use of a removable cover through
which the water inlet mouth is passed for the purpose of gaining access to the said
mouth by raising the cover from without as set forth.
2. The overshot water wheel having spokes which carry single or double buckets
substantially as set forth."

page_text: 3. The sound non-conducting material lapped round those sharp edges of the
buckets which cut the water stream by the revolution of the wheel for the purpose
of avoiding the noiso substantially as set forth.
Dated this Eleventh day of October 1881
BREWER & JENSEN,
For the Applicant.