Improved Protecting Ring for Air Inlets and the like.
Year: 1899

page_text: Date of Application, 16th Oct., 1899
Complete Specification Left, 4th May, 1900-Accepted, 30th June, 1900
PROVISIONAL SPECIFICATION.
Improved Protecting Ring for Air Inlets and the like.
I, FRIEDRICH KNÜTTEL, of 6, Franklinstrasse, Charlottenburg, near Berlin,
Germany, Director, do hereby declare the nature of this invention to be as
follows:
Wherever a wall separates two spaces differing in temperature under known
conditions the moisture of the air will be deposited in the form of liquid
globules on that side of the wall which is next to the space having the lower
temperature. If the said wall be provided with apertures through which the
air from the cooler space is conducted into the warmer space, one result will
be that a considerable amount of the moisture deposited on the partition wall
will be carried over into the warmer space therewith an occurrence which
is undesirable especially in certain drying apparatuses, cooling devices and
the like.
The present invention which has been developed especially in connection with
pneumatic malting drum remedies this drawback by the fixing of a ring ur
half ring round each ventilating pipe or inlet attached to the wall which is
next the space with the lowest temperature and securing the same tightly to
the wall by means of rivets, solder or any other means suitable to the purpose.
The ring is not symmetrical; the part next the wall is cylindrical or nearly so,
while at the outer part the edge is expanded, either gradually curved out or
terminating at an acute angle.
The ring can also be constructed as a dish, the bottom of which is provided
with air holes while the edge of the dish is inserted in a hole of the wall of
corresponding size. If the wall is of cast metal, the annular projection thereon
can be cast in one piece with it.
The action of the apparatus described is as follows:-
The moisture deposited on the wall in consequence of the difference of the
temperatures will partly drip down over the air inlets but cannot reach these
as it will be conducted round the inlets by the outside of the rings and drop off
at the lowest part of the ring whence it can be removed by means of a common
outlet channel. It will be obvious that it is not essential for the protecting
apparatus to be circular in order to attain the result aimed at; the same result
would be obtained by using an elliptical or polygonal shape. The circular
shape is therefore to be understood here in the widest sense and is only used
in preference to other shaped articles because it requires less material and costs
less to make in proportion to its size than other shapes.
A specimen of the invention is illustrated in the accompanying drawing in
front elevation in Figure 1, and in vertical section in Figure 2. It shew's
the protecting ring a dish-shaped and fixed to the partition or wall b, in which
wall air-holes d are arranged passing also through the bottom of the dish which
is here shewn attached to the wall by means of the rivets c.

page_text: Improved Protecting Ring for Air Inlets and the like.
I, FRIEDRICH KNÜTTEL, of 6, Franklinstrasse, Charlottenburg, near Berlin,
Germany, Director, 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:―
Wherever a wall separates two spaces differing in temperature under known
conditions the moisture of the air will be deposited in the form of liquid
globules on that side of the wall which is next to the space having the lower
temperature. If the said wall be provided with apertures through which the
air from the cooler space is conducted into the warmer space, one result will
be that a considerable amount of the moisture deposited on the partition wall
will be carried over into the warmer space therewith; an occurrence which
is undesirable especially in certain drying apparatuses, cooling devices and
the like.
The present invention which has been developed especially in connection with
pneumatic malting drum remedies this drawback by the fixing of a ring or
half ring round each ventilating pipe or inlet attached to the wall which is
next the space with the lowest temperature and securing the same tightly to
the wall by means of rivets, solder or any other means suitable to the purpose.
The ring is not symmetrical; the part next the wall is cylindrical or nearly so,
while at the outer part the edge is expanded, either gradually curved out or
terminating at an acute angle.
The ring can also be constructed as a dish, the bottom of which is provided
with air holes while the edge of the dish is inserted in a hole of the wall of
corresponding size. If the wall is of cast metal, the annular projection thereon
can be cast in one piece with it.
The action of the apparatus described is as follows:
The moisture deposited on the wall in consequence of the difference of the
temperatures will partly drip down over the air inlets but cannot reach these,
as it will be conducted round the inlets by the outside of the rings and drop off
at the lowest part of the ring whence it can be removed by means of a common
outlet channel. It will be obvious that it is not essential for the protecting
apparatus to be circular in order to attain the result aimed at; the same result
would be obtained by using an elliptical or polygonal shape. The circular
shape is therefore to be understood here in the widest sense and is only used
in preference to other shaped articles because it requires less material and costs
less to make in proportion to its size than other shapes.
A specimen of the invention is illustrated in the drawing filed with the Pro-
visional Specification in front elevation in Figure 1, and in vertical section in
Figure 2. It shews the protecting ring a dish-shaped and fixed to the partition
or wall b, in which wall air-holes d are arranged passing also through the bottom
of the dish which is here shewn attached to the wall by means of the rivets c.
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:-
1. Improved means for protecting air inlets through a partition separating
two spaces of different temperature, consisting of a ring or shield attached to
the said partition, surrounding the said apertures substantially as and for the
nurnose described.

page_text: 2. In apparatus for the purpose herein before set forth, a protective device
in the form of a dish with perforated bottom constructed and operating sub-
stantially as described and shewn.
ALL 1
1000
W. P. THOMPSON & Co.,
Of London, Liverpool, Manchester and Birmingham.