IMPROVEMENTS IN THE METHOD OF AND APPARATUS FOR SECURING GLASS IN METALLIC WINDOW FRAMES
Year: 1876

page_text: LETTERS PATENT to Robert Hird, of Shipley, in the County of York, Ironfounder,
and Alfred Calvert, of Leeds, in the County of York, Patentees' Agent, for the
Invention of "IMPROVEMENTS IN THE METHOD OF AND APPARATUS FOR
SECURING GLASS IN METALLIC WINDOW FRAMES."
Sealed the 28th March 1877, in pursuance of an Order of the Lord Chancellor, and
Sealed the 28th March 1877, in pursuance of an Order of the Lord Chancellor, and
dated the 21st September 1876.
PROVISIONAL SPECIFICATION left by the said Robert Hird and Alfred
Calvert at the Office of the Commissioners of Patents on the 21st September
1876.
ROBERT HIRD, of Shipley, in the County of York, Ironfounder, and ALFRED
CALVERT, of Leeds, in the County of York, Patentees' Agent. "IMPROVEMENTS IN
THE METHOD OF AND APPARATUS FOR SECURING GLASS IN METALLIC WINDOW
FRAMES."
The object of this Invention is to prevent the waste of glass from breakage in
consequence of wind pressing upon the squares in iron window frames of ordinary
section. We accomplish this in the following manner :-In the bosses of the upper
part of the square or other shaped frame we introduce a recess for the reception of
the angles of the glass. The bottom of the frame, which is the top of each horizontal
bar of framework, we make of a trough section, so that when the glass is put into
the recesses of bosses above referred to the bottom of the glass is allowed to drop
into the trough, by which means it is retained in its proper position.
Hitherto the section of iron windows has been that of the ordinary gut of wooden
windows, and in consequence of the non-adhesiveness of the putty to the iron the
glass has yielded to wind or rain pressure. It has also been necessary to cut the
four corners of the glass; by adopting our improved method it is only necessary to
cut two of the four corners, thus effecting a saving in labor also.
SPECIFICATION filed in pursuance of the conditions of the Letters Patent and
of an Order of the Lord Chancellor, by the said Robert Hird and Alfred
Calvert in the Great Seal Patent Office on the 29th March 1877.
ROBERT HIRD, of Shipley, in the County of York, Ironfounder, and ALFRED
CALVERT, of Leeds, in the County of York, Patentees' Agent.
Price 4d.1
*IMPROVEMENTS

page_text: IN THE METHOD OF AND APPARATUS FOR SECURING GLASS IN METALLIC WINDOW
FRAMES."
The object of this Invention is to prevent the waste of glass from breakage
in consequence of wind pressure upon the squares in iron window frames of
ordinary section. We accomplish this in the following manner :-In the bosses of
the upper part of the square or other shaped frame we introduce a recess for the
reception of the angles of the glass. The bottom of the frame, which is the top of
each horizontal bar of framework, we make of a trough section, so that when the
glass is put into the recesses of bosses above referred to the bottom of the glass is
allowed to drop into the trough, by which means it is retained in its proper
position.
Hitherto the section of iron windows has been that of the ordinary gut of wooden
windows, and in consequence of the non-adhesiveness of the putty to the iron the
glass has yielded to wind or rain pressure. It has also been necessary to cut the
four corners of the glass; by adopting our improved method it is only necessary to
cut two of the four corners, thus effecting a saving in labour also.
In order that this Invention may be more fully understood we herein give
reference to an accompanying Sheet of Drawings illustrative thereof.
The same letters refer to the same parts in each Figure.
Fig. 1 is a front elevation of a portion of a window frame, showing the bosses A,
the front portion of which may be made square, as shown, or dimond shaped,
pentagonal, round, oval, or any other ornamental design to suit the architectural
style of the building the windows are to be used for.
Fig. 2 is a section through the horizontal bars B of the framework of the window,
which shows the trough C formed in the top side of each horizontal bar B for the
reception of the glass E. The recess D is formed in the bottom side of the bosses A
for the reception of the top angles of the glass E; the glass is cut at the bottom
angles to clear the bosses, and is lifted up into the recesses D until the glass E
passes over the bosses A; it is then lowered into the trough C, and secured therein
by means of putty cement F, which is applied in the usual manner. The bottom
portion of the glass rests in the trough, and the top angles are in the recesses formed
in the bosses, and when the glass is secured by the putty cement the wind pressure
on the glass is sustained by means of the said trough in the horizontal bars and the
recesses in the bosses before described.
Fig. 3 is a section through the boss, showing the recesses for the reception of the
top angles of the glass; Fig. 4 is a section of the boss through line c, d.
Having now given a description of the Drawings accompanying this Specification,
and the manner in which the same is to be or may be performed or carried into
effect, we would have it understood that we do not confine ourselves to the precise
details herein described, as the same may be varied without departing from the
nature and characteristic feature of the said Invention, but what we claim is, the
securing of glass in metal window frames in the manner herein-before described.
In witness whereof, I, the said Robert Hird, for and on behalf of myself and
the said Alfred Calvert, have hereunto set my hand and seal, this Nineteenth
day of March, in the year of our Lord One thousand eight hundred and
seventy-seven,
Signed, sealed, and delivered by the
above-named Robert Hird, in the
presence of
JOHN WAUGH,
Engineer & Patent Agent,
Bradford,
ROBERT HIRD. (L.S.)
York"