Improvements in Means for use in connection with the Soldering or Brazing of the Joints of Fenders, Curbs, Frames, and like Articles.
Year: 1898

page_text: Improvements in Means for use in connection with the Soldering or
Brazing of the Joints of Fenders, Curbs, Frames, and like Articles.
I, WILLIAM PURCOCKS, of 58, Sandy Lane, Bordesley, Birmingham, Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention relates to means to be employed in connection with the making
up of metallic frames curbs and other articles of a like manufacture from lengths
of metal moulding bars, rods or the like, and is particularly applicable to the
manufacture of metal casement frames, also to fenders and curbs and other
enclosed or partly enclosed structures.
My invention consists in means for holding together the opposed ends of
moulding or other lengths during the brazing of the joints and this I accomplish
by employing one, two or more keys or plate dowels driven into coincident saw
cuts made across the corner or angle formed by the mitred or bevelled ends of two
meeting lengths.
In carrying out one form of my invention, I make up a right angled frame of
a number of lengths of moulding having mitred ends. The opposed ends of two
of the lengths are then brought together, and one, two or more saw-cuts are made
across the corner, and where more than one cut is made, I propose that these saw
cuts should incline at a slight angle towards one another, and then plate keys
are driven into the cuts, thereby securing the lengths together but leaving suffi-
cient space in the joints for the running of the solder or brazing metal into them.
After brazing or soldering, the superfluous metal of the keys, both inside and
outside the frame, is clipped away or removed flush up to the metal of the
moulding.
As a modification, instead of making saw cuts as described, oblique holes may
be drilled into the corners made by the meeting ends of the lengths, and into
which, pegs or cotters of metal are driven.
By my improvements I am enabled to dispense with the use of clamps or cramps
for holding together the lengths during the soldering or brazing of them, and
which, in consequence of the unequal expansion of the metal on the application
of heat, are very apt to allow the lengths to vary their relative positions when
being brazed up.
Doted this 28th day of Fahru 1908

page_text: Improvements in Means for use in connection with the Soldering or
Brazing of the Joints of Fenders, Curbs, Frames, and like Articles.
I, WILLIAM PURCOCKS, of 58, Sandy Lane, Bordesley, Birmingham, Engineer,
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:-
This invention relates to means to be employed in connection with the making
up, or brazing or soldering together the component members of, metallic frames,
curbs and other articles of a like manufacture made from lengths of metal
moulding bars, rods or the like, and is particularly applicable to the manufacture
of metal casement frames, also to fenders and curbs and other enclosed or partly
enclosed structures.
According to the present invention, the holding together of the opposed ends
of moulding or other lengths during the brazing of the joints is accomplished
by the employment of one, two or more keys or plate dowels driven into coinci-
dent saw cuts made across the corners or angles formed by the meeting mitred
or bevelled ends of two contiguous lengths.
In carrying out one form of my invention in connection with the making up
of a metallic casement frame, I take four lengths of metal, of any suitable section,
such as represented partly in elevation and partly in section in Figure 1 and
marked respectively a¹, a, a, a, with the meeting or opposed ends bevelled or
mitred at a³, and then bring together the said mitred ends and make across each
of the corners, a pair of saw-cuts or notches b, b', to receive the key plates c, c¹,
by means of which the component lengths are tied or held together prior to the
permanent connection of them by soldering or brazing.
Figure represents a plan of the ends of two moulding lengths, showing the
saw cuts therein.
Figure 3 represents an elevation of a casement frame with the key plates
placed within the said saw cuts of the corners.
Figure 4 is a plan of one of the said corners with the key plates in position
and Figure 5 a partial cross section thereof upon the dotted line x.
The same letters of reference are used to indicate corresponding parts in the
whole of the said Figures 1 to 5.
In this arrangement, the saw cuts b, b¹, made in common across the outside
of the angle formed by the meeting ends of each pair of lengths are arranged
obliquely or inclined at a slight angle towards one another so as to prevent the
pulling apart of the connected members or lengths, whilst the plate keys, which
are preferably of a wedge or taper section, when driven into the said cuts, take
a corresponding relative inclination, thereby securing the lengths together but
leaving sufficient space in the joints between the meeting mitred ends for the
running of the solder or brazing metal into them.
After brazing or soldering together the lengths, the corners are dressed by clip-
ping or filing away the superfluous metal of the keys, both inside and outside the
frame flush up to the outside and inside surface of the frame thus made.
Figure 6 represents a side elevation showing the key plates applied or driven
into saw-cuts arranged in another way.
Figure 7 is an edge view of Figure 6 and Figure 8 a topside plan thereof.
In this modification, instead of both saw cuts being made through the edges
or sides of the meeting lengths and at a relative inclination, the one cut b, is
made downwards into the said sides, whilst the other 61, is made inwards from

page_text: the front, so that one saw cut is in approximately a vertical plate and the other
horizontal, but with both of them slightly inclined as before. The lengths a¹, a³,
are then keyed together as before prior to brazing by driving the taper or wedge-
sectioned plates c, c¹ into the saw-cuts, and then, after the brazing has been
effected, the superfluous parts of the key plates are removed by clipping, filing
or other dressing processes.
Figure 9 represents a side elevation of a still further arrangement in which
only a single key-plate is employed.
Figure 10 is an edge view and Figure 11 a plan of the corner.
In this arrangement, only a single cut c, is made in common through the
corner formed by the meeting bevelled ends of the lengths a¹, a², said cut being
preferably made at a considerable angle from the vertical and the said lengths
are then tied together, prior to brazing up, by driving a single wedge-sectioned
key plate b, into the said cut.
As a still further modification, instead of saw-cutting the corners or meeting
ends of the frame members, relatively oblique holes 6, 61, may be drilled (as
represented in section in Figure 12 and plan in Figure 13) through the meeting
ends of the lengths such as a¹, a², making the corners, and through which,
lengths of taper wire, such as c, c¹, or like pegs are driven for connecting or
holding together the said lengths prior to brazing.
By these improvements, I am enabled to dispense with the use of clamps or
cramps for holding together the lengths during the soldering or brazing of them,
which, in consequence of the unequal expansion of the metal on the application
of heat, are very apt to allow the lengths to vary their relative positions when
being brazed up, and further, the driven-in key plates incidentally provide sup-
plementary means for strengthening the joints and bonding together the lengths,
so that should the brazing or soldering at the said joints be defective, the parts
are still connected by the keys.
I wish it to be understood that the invention is applicable to holding together
component frame lengths bevelled to any angle other than mitre-bevelled and
also to square abutting ends having no such bevelling.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what
I claim is:-
:
First Holding together the opposed ends of the component lengths of metallic
casement and other frames and analogous structures during brazing or soldering,
by the employment of one or more keys or plate dowels, driven into oblique or
relatively inclined saw-cuts or holes made across or through the corners formed by
the meeting ends of contiguous lengths, substantially as described and set forth.
Secondly In the manufacture or production of frames or structures made
from brazed or soldered together lengths of metal, reinforcing the brazed or
soldered joints by the left-in keys or dowel plates referred to in the preceding
claim.
012
& Nowamben 1000
WILLIAM PURCOCKS.
By Henry Skerrett,
24, Temple Row, Birmingham, Agent for Applicant.