IMPROVEMENTS IN MEANS on ENDLOVED PREVENTING DOWN DRAUGHT IN CHIMNIES AND FACILITATING THE ESCAPE OF SMOKE; WHICH ARE ALSO APPLICABLE FOR VENTILATING APARTMENTS, CARRIAGES, LAMPS, OR OTHER ENCLOSURES
Year: 1882

page_text: TTERS PATENT to Carl Edwin Hanewald of N° 47 Lower Belgrave Street
Eaton Square in the County of Middlesex Engineering Agent, for an
Invention of IMPROVEMENTS IN MEANS on
ENDLOVED
PREVENTING DOWN DRAUGHT IN CHIMNIES AND FACILITATING THE ESCAPE OF
SMOKE; WHICH ARE ALSO APPLICABLE FOR VENTILATING APARTMENTS,
CARRIAGES, LAMPS, OR OTHER ENCLOSURES. Communicated to him from
abroad by Fritz Haszelmann of Munich in the Empire of Germany
Architect.
PREVENTING DOWN DRAUGHT IN CHIMNIES AND FACILITATING THE ESCAPE OF
SMOKE; WHICH ARE ALSO APPLICABLE FOR VENTILATING APARTMENTS,
CARRIAGES, LAMPS, OR OTHER ENCLOSURES. Communicated to him from
abroad by Fritz Haszelmann of Munich in the Empire of Germany
Architect.
PROVISIONAL SPECIFICATION left by the said Carl Edwin Hanewald at
the Office of the Commissioners of Patents on the 3rd August 1882.
CARL EDWIN HANEWALD of No. 47 Lower Belgrave Street Eaton Square in the
County of Middlesex Engineering Agent. "IMPROVEMENTS IN MEANS OR APPARATUS
EMPLOYED FOR PREVENTING DOWN DRAUGHT IN CHIMNIES AND FACILITATING THE
ESCAPE OF SMOKE WHICH ARE ALSO APPLICABLE FOR VENTILATING APARTMENTS,
CARRIAGES, LAMPS, OR OTHER ENCLOSURES." (Communicated to me from abroad by
Fritz Haszelmann of Munich in the Empire of Germany Architect.)
The object of the invention is to afford means for the better prevention of down
draught in chimnies or flues or parts of lamps, and for facilitating the escape of
smoke or vapors, also for use, in ventilating apartments, buildings, carriages, lamps,
and other enclosures or chambers, in order to remove therefrom foul or vitiated
air, vapors or fumes or promote circulation.
For this purpose in place of the ordinary chimney pot or cap, I fit to the upper
end of the chimney or channel of ventilation a pipe or tube of suitable length and
form of section, generally employing one of a circular section on account of its
simplicity and other advantages. Upon this tube or pipe I slide or apply another
double tube cylinder or jacket of corresponding section the intervening space
being capable of containing a body of air to arrest radiation of heat from the inner
or flue tube and thus prevent the accumulation or retardation therein of the out-
flowing smoke or other fluid by abstraction of its heat. The upper portion of this
Price Bd1

page_text: jacketting tube is so formed that by its suitably curved or inclined contour it acts
to deflect the wind or outside current of air from passing in a direction to enter
the flue or outflowing air passage, and this protection of the flue tube or outflow is
further assisted by a cap or covering part composed of a plate or cover over the
outlet supported by arms or ribs from a part cylinder, or supporting part which
fits or is connected to, and is supported by the double tube or jacketting cylinder,
and over this inner cover is supported by other ribs or supports an outer cap or
cover generally of dished form to better aid the operation of the apparatus as well
as to throw off rain therefrom, and another tubular part or tubular parts suitably
curved or coned in section to form with the outer upper portion of the double
jacket or cylinder suitable channels for the flow away of the out-coming smoke or
fluid and to give an upward flow to the outside air or wind to ensure a continuous
outflow of smoke or other fluid and prevent down draught. Two or a series of
these tubes with a surrounding jacket or jackets enclosing the inner tubes may be
employed and the form of the other parts will be modified to the circumstances
and in like manner the covering portions may be combined in one part or may form
in use
one combined apparatus but capable of separation for convenience of
application removal or cleansing.
Suitable catches or fastening means are employed to retain the removeable
portions of the apparatus in their proper relative positions when in use as may be
required.
The parts may be formed of zinc galvanized iron or other suitable material.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Carl Edwin Hanewald in the Great Seal Patent Office on the
1st February 1883.
CARL EDWIN HANEWALD of N° 47 Lower Belgrave Street Eaton Square in the
County of Middlesex Engineering Agent. "IMPROVEMENTS IN MEANS OR APPARATUS
EMPLOYED FOR PREVENTING DOWN DRAUGHT IN CHIMNIES AND FACILITATING THE
ESCAPE OF SMOKE WHICH ARE ALSO APPLICABLE FOR VENTILATING APARTMENTS,
CARRIAGES LAMPS OR OTHER ENCLOSURES. (A communication to me from abroad
by Fritz Haszelmann of Munich in the Empire of Germany Architect)
73
The object of the invention is to afford means for the better prevention of down
draught in chimnies or flues or parts of lamps and for facilitating the escape of
smoke or vapors, also for use in ventilating apartments, buildings, carriages, lamps
and other enclosures or chambers in order to remove therefrom foul or vitiated air
vapors or fumes or promote circulation.
For this purpose in place of the ordinary chimney pot or cap I fit to the upper
end of the chimney or channel of ventilation a pipe or tube of suitable length and
form of section generally employing one of a circular section on account of its
simplicity and other advantages. Upon this tube or pipe I slide or apply another
double tube cylinder or jacket of corresponding section the intervening space being
capable of containing a body of air to arrest radiation of heat from the inner or
flue tube and thus prevent the accumulation or retardation therein of the outflowing
smoke or other fluid by abstraction of its heat. The upper portion of this jacketting
tube is so formed that by its suitably curved or inclined contour it acts to deflect
the wind or outside current of air from passing in a direction to enter the flue or
outflowing air passage and this protection of the flue tube or outflow is further
assisted by a cap or covering part composed of a plate or cover over the outlet
supported by arms or ribs from a part cylinder or supporting part which fits to or
is connected and supported by the double tube or jacketting cylinder and over this
inner cover is supported by other ribs or supports an outer cap or cover generally
of dished form to better aid the operations of the apparatus as well as to throw off
rain therefrom, and another tubular part or tubular parts suitably curved or coned in
section to form with the outer upper portion of the double jacket or cylinder suitable
channels for the flow away of the outcoming smoke or fluid and to give an upward
flow to the outside air or wind to ensure a continuous outflow of smoke or other
fluid and prevent down draught. Two or a series of these tubes with a surrounding
jacket or jackets enclosing the inuer tubes may be employed and the form of the
other parts will be modified to the circumstances and in like manner the covering
portions may be combined in one part or may form in use one combined
apparatus but capable of separation for convenience of application removal or
cleansing.
Suitable catches or fastening means are employed to retain the removeable
portions of the apparatus in their proper relative positions when in use as may be
required.
The parts may be formed of zinc, galvanized iron or other suitable material.
But that the invention may be the more fully understood I will by the aid of the
accompanying drawings proceed to describe the same in detail.

page_text: Figure 2 represents a sectional plan view of Figure 1.-a represents the top of a
chimney stack, b represents the inner pipe or tube placed on the top of the stack.
This pipe or tube b may be of any reasonable length desired. Over this inner
tube b is applied another double tube or double cylinder c c which is formed so as
to leave space between its parts c and c¹ to serve as a jacket to the inner cylinder b
by receiving air for the purpose of arresting radiation of heat from the inner tube b
and by that means aiding to prevent the accumulation or retardation therein from
outflowing smoke or other fluid by abstraction of its heat-c² is a cap or cover to
the parts c c and this cap or cover is curved to deflect the wind or any external
current of air in passing from entering in a direction down the flue. d represents
another outer and upper tube with a flanged bottom edge d¹ and e represents a cap
or cover to the whole. f represents a sliding adjustable inner cap or cover that
may be employed if found desirable.
Figures 3 and 4 represent an external view and a horizontal section of an
arrangement of parts for combining several flues together to be simultaneously
operated upon.
1
Three flues are here shown but it is evident that other number may be so com-
bined if desired there being in this case one cylinder 6 to each flue but only one
jacket c c¹ with parts d and e to the three or other number as the case may be.
Ribs or wings retain the parts in their correct relative positions and catches are
employed to retain the moveable parts in their correct relations.
From what has been described in relation to chimney flues it will readily be
understood that the improvements are applicable to the outlet passages of
apartments or carriages for the purpose of ventilating them or to lamps or other
enclosures.
Having thus described the invention as communicated to me I would have
it understood that what I claim is the arranging or combining parts forming
means or apparatus for preventing down draught in chimnies and for facilitating
the escape of smoke and the application thereof to the ventilation of apartments
carriages, lamps or other enclosures substantially as described.
In witness whereof I the said Carl Edwin Hanewald have hereunto set my
hand and seal this Thirt[i]eth day of January in the year of our Lord One
thousand eight hundred and eighty three.
EDWIN HANEWALD. (L.S.)