Improvements in
Year: 1897

page_text: Date of Application, 1st July, 1897
Complete Specification Left, 29th Mar., 1898-Accepted, 7th May, 1898
I, JOHN SIMPSON, of Stocksbridge Works, Sheffield, in the County of York,
Foreman, do hereby declare the nature of this invention to be as follows:-
My invention relates to the formation of the stretcher joints for jointing trough
ribs to their stretchers.
According to this invention I first place a short length of wire within the rib
at the point where the joint is to be formed and close over the sides of the rib
around the central portion of this wire to secure it in place. Afterwards I lap
around the exterior of the portion of the rib which has had its sides so bent around
the wire a git piece of sheet iron or steel or other metal and then flatten the sides
of this git piece so as to make it of the same or slightly less width than the
remainder of the rib and through the solid git so formed I pierce the hole for the
joint pin-this may be done at one process.
The trough stretcher within which the rib is to lie I make two forked so that
the arms of the fork may lie against the flattened sides of the solid git.
In place of the sheet iron or steel git piece being lapped around the exterior of
the portion of the rib which has had its sides bent over around the wire the
bending over of the sides of the rib around the central part of the wire might be
omitted and the git piece be not only wrapped around the rib but also have its
ends turned down over the sides of the rib so that they come inside it and then the
git piece, rib and central portion of the wire placed within it may all be flattened
together and virtually make the rib solid at this point and approximately of the
same shape as the remainder of the rib.
1 1 1 201 dow of Tuna 1807
Improvements in ou
I, JOHN SIMPSON, of Stocksbridge Works, Sheffield, in the County of York,
Foreman, 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: -
My invention relates to the formation of the stretcher joints for jointing trough
ribs to their stretchers.
According to this invention I first place a short length of wire within the rib
at the point where the joint is to be formed and by suitable dies close over the sides
of the rib around the central portion of this wire to secure it in place. Afterwards
Price 871

page_text: by other dies I lap around the exterior of the portion of the rib which has had its
sides so bent around the wire a git piece of sheet iron or steel or other metal and
then by dies flatten the sides of this git piece so as to make it of the same or
slightly less width than the remainder of the rib and through the solid git so
formed I pierce the hole for the joint pin-this may be done at one process by one
set of dies.
The trough stretcher within which the rib is to lie I make two forked so that
the arms of the fork may lie against the flattened sides of the solid git.
This method of manufacturing the stretcher joints is illustrated in the drawings
annexed.
Figures 1 shew a face view and cross section of part of a trough wire rib with a
length of wire placed into the trough at the point where the joint is to be formed.
Figures 2 are similar views shewing the sides of the rib at a closed over the
central portion of the wire.
Figures 3 are similar views shewing a git piece 6 of thin sheet metal wrapped
around the exterior of the portion of the rib which has had its sides so bent around
the wire.
Figures 4 are similar views shewing the git piece and the parts it surrounds all
flattened together.
Figures 5 are similar views shewing the solid portion of the rib which has been
formed in the above manner pierced with a hole for the joint pin.
These two latter processes may either be effected separately or simultaneously
by one set of dies.
Figures 6 are similar views to the above shewing the end of a trough stretcher c
jointed to the portion of the rib which has been made solid in the above manner.
In place of the sheet iron or steel git piece b being lapped around the exterior
of the portion of the rib which has had its sides bent over around the wire the
bending over of the sides of the rib around the central part of the wire might be
omitted and the git piece be not only wrapped around the rib but also have its
ends turned down over the sides of the rib so that they come inside it in the manner
shewn in cross section at Figure 7 and then the git piece b rib c and central portion
of the wire d placed within it may all be flattened together and virtually make
the rib solid at this point and approximately of the same shape and width as the
remainder of the rib as in the construction first described.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. A trough rib made solid at the point where its stretcher is to be jointed to
it, by the sides of the trough being closed over the central portion of a short
length of wire placed into it and by a piece of thin sheet metal being compressed
around its exterior until it is brought approximately to the same width as the
remainder of the rib and having a hole for the joint pin pierced through the part
so made solid.
2. A trough rib made solid at the point where its stretcher is to be jointed to it
by means of a short length of wire placed into it and by a piece of thin sheet metal
wrapped around the rib and bent down over the top of its sides so as to project
inwards into it and afterwards flattened down and compressed on to the rib and on
to the central portion of the short length of wire inserted into it until it is brought
approximately to the same width as the remainder of the rib and having a hole
for the joint pin pierced through the part so made solid.
Dated this 30th day of November 1897.