IMPROVEMENTS IN VENTILATING ROOMS, APARTMENTS, AND SUCII LIKE PLACES, FREED FROM ALL OBJECTIONABLE DRAUGHTS
Year: 1876

page_text: LETTERS PATENT to Richard Harris, of Marylebone, in the County of Middlesex,
Engineer, for the Invention of "IMPROVEMENTS IN VENTILATING ROOMS,
APARTMENTS, AND SUCII LIKE PLACES, FREED FROM ALL OBJECTIONABLE
DRAUGHTS."
Sealed the 9th March 1877, and dated the 25th November 1876.
PROVISIONAL SPECIFICATION left by the said Richard Harris at the Office
of the Commissioners of Patents on the 25th November 1876.
RICHARD HARRIS, of Marylebone, in the County of Middlesex, Engineer. " IM-
PROVEMENTS IN VENTILATING ROOMS, APARTMENTS, AND SUCH LIKE PLACES, FREED
FROM ALL OBJECTIONABLE DRAUGIITS."
This Invention consists in providing a supplementary door or shutter to be
attached to the door post or door itself, and fixed or hinged (whichever may be
found most convenient) in such a manner that when the door is partially open the
supplementary door or shutter occupies such a position that it closes the side
opening, which would otherwise exist, leaving the top open for the admission of air,
the area of this opening being governed by the width of the supplementary door
or shutter.
It will be seen that doors arranged on this principle direct the entering current
upwards in such a manner that it ventilates the whole without causing any
draught.
Sometimes propose curving the door in such a manner that when the door is
closed at the sides there will still remain a gap for the admission of the air, which gap
can be closed by a suitable louver board or boards if necessary; and in this case 1
dispense with the supplementary door before described.
Sometimes my Invention may be applied to windows which open similar to the
doors of rooms or apartments.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Richard Harris in the Great Seal Patent Office on the 25th May
1877.
RICHARD HARRIS, of Marylebone, in the County of Middlesex, Engineer. "1M-
PROVEMENTS IN VENTILATING ROOMS, APARTMENTS, AND SUCH LIKE PLACES, FREED
FROM ALL OBJECTIONABLE DRAUGHTS."
This Invention consists in providing a supplementary door or shutter to be
attached to the door post or door itself, and fixed or hinged (whichever may be
found most convenient) in such a manner that when the door is partially open the
supplementary door or shutier occupies such a position that it closes the side
opening, which would otherwise exist, leaving the top open for the admission of air,
the area of this opening being governed by the width of the supplementary door
or shutter.
It will be seen that doors arranged on this principle direct the entering current
upwards in such a manner that it ventilates the whole without causing any
draught.
Sometimes I purpose curving the door in such a manner that when the door is
closed at the sides there will still remain a gap for the admission of the air, which
gap can be closed by a suitable louvre board or boards if necessary; and in this case
I dispense with the supplementary door before described.
Sometimes my Invention may be applied to windows which open similarly to the
doors of rooms or apartments.
Having thus described the nature of the said Invention, and incidentally inti-
mated in what manner the same is to be performed, I will now proceed (aided by
the accompanying Drawing) to further and particularly describe and ascertain in
what manner the same is to be performed or carried out in practice, that is to
say :-
Fig. 3, sectional plan of arrangement similar to that shown in Fig. 2 applied to
windows.
;
Fig. 4 represents perspective view of an arrangement suitable for new doors.
Fig. 5 represents a sectional elevation, and Fig. 6, sectional plan of arrangements
adapted for windows.
Figs. 7 and 8 show (by elevation and sectional plan) my arrangements adapted
to casement windows.
In these Figures A represents the supplementary door or shutter secured to the
door post B, the door; B, the opening which is formed when the door (B) is
opened for the admission of the current of air, which issues into the apartment, as
indicated by the arrows.
In Fig. 2 the arrangements are so placed that an increased area of opening can
be obtained without the door or shutter (A) projecting any greater distance into
the room than that represented in Fig. 1. This is accomplished by making the
door or shutter (A) elongated and curved at the end, as shown; and in applying
this arrangement to windows a door or shutter (A, Fig. 3) may be placed on both
sides of the window.
In Fig. 4 the supplementary door (A) is dispensed with, and the door itself is
curved, so that when the door is closed at the sides there still remains the opening C
for the admission of air. This opening can if necessary be closed by a louvre board
or boards.
In Figs. 5 and 6 arrangements are shewn applicable for windows, same enabling

page_text: the current of air to enter more freely. In these arrangements I use a supple-
mentary blind D, or bring the existing one a few inches into the room, and to each
side of the window I attach a piece of wood (E) (which can be fixed or hinged as
desired), wedge shaped, and, with a groove on its edge, which groove the blind (D)
passes in such a manner that the side openings and likewise the bottom become
sealed, only leaving an opening in the top (as shewn) for the admission of the
fresh air or exit of the vitiated air. F, the blind roller.
In Figs. 7 and 8 the supplementary door or shutter is fixed or hinged to one of
the casements, and so formed that when in position it takes the form shown in
Fig. 8; but when it is desired to close the casement window all that is required is
to turn the part a back, and the window can be closed in the ordinary way.
It is to be understood that the lower part is closed, so that the only opening is
at the top, as before described.
Having now particularly described and ascertained the nature of the said Inven-
tion, and in what manner the same is to be performed or carried out in practice, I
hereby declare that I claim the Invention of "Improvements in Ventilating Rooms,
Apartments, and such like Places, Freed from all Objectionable Draughts," sub-
stantially as the same is herein-before set forth and described and illustrated by the
accompanying Drawings:
-
In witness whereof, I, the said Richard Harris, have hereunto set my hand
and seal, this Twenty-fourth day of May, in the year of Our Lord One
thousand eight hundred and seventy-seven.