IMPROVED MEANS FOR RENDERING DOORS, WINDOWS, SHUTTERS, AND LIDS OF BOXES AND CHESTS CLOSE FITTING
Year: 1877

page_text: LETTERS PATENT to Alfred Vincent Newton, of the Office for Patents, 66,
Chancery Lane, in the County of Middlesex, Mechanical Draughtsman, for the
Invention of "IMPROVED MEANS FOR RENDERING DOORS, WINDOWS, SHUTTERS,
AND LIDS OF BOXES AND CHESTS CLOSE FITTING." A communication from
abroad by Bernard Glöckner, of Tschirndorf, in the Empire of Germany.
PROVISIONAL SPECIFICATION left by the said Alfred Vincent Newton at
the Office of the Commissioners of Patents on the 26th November 1877.
"
ALFRED VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane, in the
County of Middlesex, Mechanical Draughtsman. 'IMPROVED MEANS FOR REN-
DERING DOORS, WINDOWS, SHUTTERS, AND LIDS OF BOXES AND CHESTS CLOSE
FITTING." [A communication from abroad by Bernard Glöckner, of Tschirndorf, in
the Empire of Germany.]
The chief object of this Invention is to insure the tight closing of doors and
hinged windows, and thereby to prevent the passage of cold air into closed
apartments.
The Invention is also applicable to boxes and hinged shutters and to the lids
or covers of chests, from which either air or water is required to be excluded.
In applying this Invention to lattice windows for example, the frame of the
window is made with a face projection, which enters the opening that is required
to be closed, and fits closely against the edges of that opening. The window frame
is grooved or recessed all around this projection to receive an elastic packing, and
the face of the fixed frame against which the door or window is to close is intended
to receive the pressure of the elastic packing when the window is closed or fastened.
The groove or recess in the window frame is made continuous, and a ring of india-
rubber cord, of suitable dimensions, is strained over the projection before mentioned,
and pressed into the recess, which is of such depth as will allow of one half the
[Price 6d1

page_text: diameter of the section of the rubber cord protruding from the groove. On shutting
the window pressure will be put upon the elastic packing, which will then
effectually prevent the passage of air between the window and the fixed framing
closed by the same.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Alfred Vincent Newton in the Great Seal Patent Office on the
25th May 1878.
ALFRED VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane, in the
County of Middlesex, Mechanical Draughtsman. "IMPROVED MEANS FOR REN-
DERING DOORS, WINDOWS, SHUTTERS, AND LIDS OF BOXES AND CHESTS CLOSE
FITTING." A communication from abroad by Bernard Glöckner, of Tschirndorf, in
the Empire of Germany.
The chief object of this Invention is to ensure the tight closing of doors and
hinged windows, and thereby to prevent the passage of cold air into closed
apartments.
The Invention is also applicable to boxes and hinged shutters and to the lids or
covers of chests, from which either air or water is required to be excluded.
In applying this Invention to lattice windows, for example, the hinged or glazed
frame of the window is made with a face projection, which enters the opening that
is required to be closed and fits closely against the edges of that opening. The
hinged frame is grooved or recessed all around this projection to receive an elastic
packing, and the face of the fixed frame against which the window is to close is
intended to receive the pressure of the elastic packing when the window is closed
or fastened. The groove or recess in the window frame is made continuous, and a
ring of india-rubber cord or tubing, of suitable dimensions, is strained over the
projection before mentioned and pressed into the recess, which is of such depth as
will allow of one half the diameter of the section of rubber packing protruding from
the groove. On shutting the window pressure will be put upon the elastic packing
which will then effectually prevent the passage of air between the window and the
fixed framing closed by the same.
In Sheet I. of the Drawings I have shown the Invention as applied to a lattice
window; Fig. 1 being a front view with the window open, and Fig. 2 a transverse
section of the same.
A is a fixed rectangular frame of iron, and B a hinged frame of the same metal,
having on that face, which is exposed to the external atmosphere, and extending all
around the frame, a projecting rim b, which enters the opening in the fixed frame A.
Around this rim is formed a groove to receive the ring of elastic packing C, which
is sprung into its place when drawn over the rim b.
When the window is shut pressure is to be put upon it by means of the window
fastening, which may be of any approved construction. The handle, shown at D,

page_text: has projecting from its spindle a finger, which when brought to bear upon an
incline upon the hinged frame will compress the india-rubber packing, and by
flattening that portion which projects from the groove against the fixed frame A,
will form an air-tight joint all round the window.
To illustrate the application of the Invention to what are known as French
windows, or to doors that fold one upon the other, as in a glazed book-case, reference
is made to Sheet II. of the Drawings, where Fig. 3 shows in partial elevation a
French window open, and Fig. 4 is top edge view of the doors closed. In these
Figures E is a rectangular frame, which is closed by the hinged doors F, F¹. The
door F is rebated, as is usual, on its vertical edge to receive the vertical edge of
the door F, and the other edges of this door overlap the frame E. The groove
therefore which is formed in this door F, to receive the ring of elastic packing, will
run behind the three overlapping edges of the door, so as to present the packing to
the fixed frame E, but at that edge of the door which is overlapped by the door F¹
the elastic packing will be brought to the front. The door F will however be
grooved like the hinged frame in the first example, and the packing will lie, so to
speak, behind the door. Thus where the doors meet the packing of the door Fl
will project into the rebate of the door F, and by this arrangement there will be a
double provision where the doors meet for excluding a draught, or dust, or vapour,
as the case may be. This is clearly shown at Fig. 4.
The fastening of the doors to secure the requisite pressure on the elastic packing
may be effected in any approved manner.
From the foregoing examples it will be readily understood, without further
explanation, how the Invention may be applied to the other uses above indicated.
Having now set forth the nature of the Invention of "Improved Means for Ren-
dering Doors, Windows, Shutters, and Lids of Boxes and Chests Close Fitting," as
communicated to me from abroad, I wish it to be understood that under the above
in part recited Letters Patent I claim, the mode of applying elastic packing to
doors, windows, shutters, and lids of boxes and chests, as and for the purpose above
described.
In witness whereof, I, the said Alfred Vincent Newton, have hereunto set my
hand and seal, the Twenty-fifth day of May, in the year of our Lord One
thousand eight hundred and seventy-eight.
A. V. NEWTON. (L.S.)