Year: 1888

page_text: Date of Application, 17th Sept., 1888
Specification Accepted, 19th Oct., 1888
I, CLARKE MERCHANT, of Philadelphia Pennsylvania, United States of America,
Importer and Dealer in Metal do hereby declare the nature of the said invention and
in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement :-
My invention consists of a ventilator and chimney top constructed substantially as
hereinafter set forth whereby an apartment may be readily ventilated and an un-
obstructed draft created in a chimney or flue, to which in either case the device is
applied.
in the accompanying drawing
Figure 1. represents a side elevation of a ventilator and chimney-top embodying my
invention.
Figure 2 represents a central vertical section thereof.
Figure 3 represents a section in line x, x Figure 2.
Figure 4 represents a vertical section of a modification thereof.
Similar letters of reference indicate corresponding parts in the several figures.
Referring to the drawings, A represents a tube or flue, to the upper part of which
is secured a conical deflector, B, in such a manner that no opening exists between the
tube and the deflector. Sustained at the top of the tube, and elevated above the
deflector B is a conical deflector C, and above the same is supported a conical cap D,
it being noticed that spaces exist between the cap D and the deflector C and between
the deflector C and deflector B.
E represents a cylindrical tubular band, which is secured to the top of the tube A
or either of the deflectors or the cap D and encircles said deflectors and caps, the
band being of greater diameter than either of the said parts so as to leave a space
between the same. The conical deflector is of less diameter than the deflector B,
and the cap D is of greater diameter than the deflector B. The encircling tube E is
of greater diameter than the said deflectors B, C and cap D.
It will be seen that when the wind strikes the band E, should it pass over the top
edge thereof and enter said band, it may strike the deflector (), or deflector B, and is
thus directed upwardly, creating a vacuum in the tube A and prevented from being

page_text: blown into the same. Should the wind pass under the lower edge of the band or
strike the deflector B, the same result is occasioned, and thus the ventilation of the
room or apartment is reliably effected or a powerful and unobstructed draft is created
in the chimney or flue, to which in either case the device is attached. The deflector C
acts as a guard for preventing the wind admitted under the cap D from being
directed into the tube, while the wind which strikes the deflector B is directed by the
deflector Cupwardly, just over the top of the tube, thus creating a powerful draft in
the latter. Should the wind strike the cap D from above it may descend around the
outer edges of the deflectors C, B and create a downward draft between the cap and
the deflectors, the tendency of which is to create an upward draft in the tube or
flue A.
In order to prevent the lateral deflection of the wind as it strikes the deflector B,
the latter is corrugated, forming a series of channels or pockets, which serve to catch
the wind and direct it unfailingly upward above the top of the tube A.
In Figure 4 the deflector is shown as a flat annulus and employed with the
deflector B, the corrugations of the latter being omitted.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed I declare that what I claim is,
First. A ventilator and chimney-top having the corrugated deflector B secured to
the outer surface of the pipe A, at the top thereof, the conical cap 1) the tubular
band E, and the intermediate deflector C, all the said parts being arranged and
combined substantially as described.
Second. A lower deflector secured to the top of the pipe, in combination with an
upper deflector, a conical cap, and a tubular band surrounding the upper deflector
and the rim of the base of the said cap said parts being arranged and combined
substantially as and for the purpose set forth.
Third. A chimney-cowl having a bottom deflector B, secured to the top of pipe A,
an intermediate deflector C, and a conical top cap D, the diameter of the base of the
top cap being greater than that of either of the said deflectors, and a cylindrical
tubular band E, surrounding the said deflector C and the base of said top cap D,
substantially as and for the purpose set forth.
Fourth. The tube A, in combination with the deflector B, closely secured to the
top thereof, as described, the conical cap D, the inclined deflector C, and cylindrical
tubular band E, encircling said deflector C and of greater diameter than the base of
the deflector B, substantially as and. for the purpose set forth.
Dated this 17th day of September 1888.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.