Year: 1886

page_text: Date of Application, 29th June, 1886.
Complete Left, 29th Mar., 1887.
Complete Accepted, 3rd June, 1887.
I, GEORGE JONES ATKINS, of Tottenham, in the County of Middlesex, Gentleman,
do hereby declare the nature of this invention to be as follows:-
This invention more especially relates to improvements in the manufacture of metal
bars or frames, employed for the purpose of holding together sheets or plates of glass
for transparencies, screens, and lights of various kinds, but is also partly applicable to
the manufacture of bars or frames for other purposes.
In manufacturing glazing-bars or frames in accordance with my present invention,
I take tube of any desired and suitable metal, but preferably of brass, and I pass this
tube through openings in a draw-plate or a series of draw-plates of such shapes as to
cause the circumference of the tube to close in and be folded together in order to form
the required section of bar. For example, for the division bars of a screen, I cause
the tube to assume a double channel or H section, which section is also applicable
to the bars forming the outer frame. The tube may however be forced into a great
variety of sections according to requirements and an ornamental beading, may, if
desired be formed on one or more of the faces of the bar. In order to frame together
bars of H section for example, for glazing purposes, I cut away the necessary portions
of two intersecting bars and halve them together, and in order to form a butt joint of
two bars at, or about right angles to each other, I cut away the two tables or leaves of
one bar leaving the web or heart intact which latter I cause to enter a hole through
the web or heart of the adjacent bar, and I then bend over in opposite directions the

page_text: two thicknesses composing the projecting web or heart of the first bar, such portion
being suitably annealed for that purpose. By the employment of the above described
joints framing of a great variety of designs may be put together in a simple, expeditious,
neat, and substantial manner. I prefer that the distance between the flanges of
the H bars shall be greater than the thickness of the glass employed, so as to facilitate
the insertion of the latter and I prefer to fill up the remaining space, after the glass
is in place, by any suitable cement, indiarubber, gutta-percha, etcetera.
I sometimes employ rolls for forming the desired sections of bars from the tube
instead of the draw plates as before described.

page_text: COMPLETE SPECIFICATION.
Improvements in the Manufacture of Metal Bars or Frames.
I, GEORGE JONES ATKINS, of Tottenham, in the County of Middlesex, Gentleman
do hereby declare the nature of this invention and in what manner the same is
to be performed, to be particularly described and ascertained in and by the following
statement, reference being had to the accompanying two sheets of Drawings and to the
letters and figures marked thereon, that is to say :-
This invention relates, more especially, to improvements in the manufacture of
metal bars or frames employed for the purpose of holding together sheets or plates of
glass for transparencies, screens and lights of various kinds; but is also partly
applicable to the manufacture of bars or frames for other purposes.
In manufacturing glazing-bars or frames, for example, in accordance with my
present invention, I take tube of any desired and suitable metal, but preferably of
brass, and I pass this tube (which may be of circular section, for example, as illustrated
in Figure 1 of the Drawings hereto annexed) through openings in a draw plate, or in
a series of draw plates of such shapes as to cause the inner circumference of the tube
to close in and be folded together in order to form the required section of bar. For
example, for the division bars of a screen I cause the tube to assume a double channel
or H section with the parts of the inner surface of the tube forced into close contact
as illustrated in Figure 2 of the Drawings, which section is also applicable for the
bars forming the outer frame. The tube may however be made to assume other
analogous sections such as that of a single channel, a T, or L, shape for example,
according to requirements, and an ornamental beading or moulding may be formed, if
desired, on one or more of the faces of the bar. In order to frame together inter-
secting bars of H section, as illustrated in Figure 3 for example, I cut away the
necessary portions of the two intersecting bars and halve them together as illustrated
at A A in the isometric projection, Figure 4. And in order to form a butt joint of
two such bars at or about right angles to each other for example, as illustrated in
Figure 5, I cut away the two tables or leaves of one bar B as at CC in Figure 4,
leaving the end of the web or heart D intact; I pass this end of the web through a
hole E made through the web or heart of the adjacent bar F, and I then bend over in
opposite directions the two thicknesses D¹ D³ composing the projecting web or heart
of the first bar B, such portion being suitably annealed for that purpose if necessary.
By this means the end of the bar B is firmly secured to the bar F.
By the employment of the above described bars and methods of joining the same,
framing of a great variety of designs may be put together in a simple, expeditious,
neat and substantial manner without brazing or soldering. I prefer that the distance
between the flanges of the H bars shall be greater than the thickness of the glass or
other material to be employed therein, so as to facilitate the insertion of the said glass
or other material and I prefer to fill up the remaining space, after the glass or other
material is in place, by any suitable cement, india rubber, gutta percha, etcetera.

page_text: Figure 6 of the Drawings illustrates a complete frame with two intersecting cross
bars and made up of bars of H section similar to that shown in Figures 2 and 4, the
joint at A in Figure 6 being made as illustrated in Figure 3 and at A A in Figure 4,
and the joints at G in Figure 6 as illustrated in Figure 5, and at B C D E F in
Figure 4.
I sometimes employ suitably shaped rolls instead of draw-plates for forming the
tubes into bars of the desired sections, or the tube may be transformed into the
required section by pressure or any other suitable means.
1 am aware that hollow grooved bars for the manufacture of certain kinds of framing
have before been made from metallic tubes by bending or forcing inwards a part of
the circumference of such tubes with the object of producing a hollow, light, grooved
frame which shall have a solid appearance, and I make no claim to bars so constructed,
but the object of my present invention is to produce light bars of great strength,
which are not hollow, for the manufacture of frames for receiving glass or other
material for the production of screens, partitions, lights and so forth, which bars are,
by reason of the double thickness of their parts, easily jointed together without brazing
or soldering.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is :-
First The construction of metallic bars for the manufacture of glazing or other
frames by so drawing, rolling, pressing or otherwise shaping metallic tubing to the
required section, that each part of the section of a bar is composed of two thicknesses
as hereinbefore described, and illustrated in the Drawings hereto annexed.
Second-The manufacture of metallic glazing or other frames from bars constructed
by drawing, rolling, pressing or otherwise shaping metallic tubing into sections
composed of two thicknesses as hereinbefore described, and illustrated in the Drawings
hereto annexed.
Third The method of jointing intersecting metallic bars of Hor analogous sections
made by drawing, rolling, pressing or otherwise shaping metallic tubing, which method
consists in halving the two bars together, as hereinbefore described, and illustrated in
Figure 4 of the Drawings hereto annexed.
Fourth-The method of jointing metallic bars of H or analogous sections made in
two thicknesses by drawing, rolling, pressing or otherwise shaping metallic tubes,
which method consists in passing the end of the web or heart of one bar through a
hole in the web or heart of the other bar, and then bending in opposite directions the
two thicknesses composing the end of the web or heart of the first bar, as herein before
described, and illustrated in Figures 4 and 5 of the Drawings hereto annexed.
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ليتيم
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