Improvements in the Stretcher Joints of Umbrellas and Parasols.
Year: 1899

page_text: Date of Application, 19th Oct., 1899-Accepted, 25th Nov., 1899
COMPLETE SPECIFICATION.
Improvements in the Stretcher Joints of Umbrellas and Parasols.
We, WILLIAM ALLEN BINDLEY, and WILLIAM JAMES GELL, Managing Direc-
tors of Wright, Bindley and Gell Limited, of Armstrong Works, Chester Street,
Aston Road, Birmingham, in the County of Warwick, Manufacturers, and
JOSEPH FREDERICK BOHAM, of No. 129, Frederick Road, Aston, near Birming
ham, aforesaid, Machinist, do hereby declare the nature of our invention and
in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement:-
Our invention has reference to that part of the stretcher joints of umbrellas
and parasols called the get or middle bit which is fixed on the rib, the joint end
of the stretcher being jointed or pinned to the projecting ends of the said get
or middle bit; and our said invention consists of the improvements hereinafter
described in fixing the gets or middle bits to hollow or paragon ribs, whereby
the advantages hereinafter pointed out are obtained.
For this purpose, we construct the get or middle bit and prepare the hollow
or paragon rib in the manner hereinafter described and illustrated in the accom-
panying drawing.
We take a blank from which the get or middle bit is to be made the said
blank having holes pierced in it nearly in the ordinary positions for the joint
pin of the stretcher joint to pass through and while the blank is in the flat we
form by press tools from the opposed sides of the said holes raised teats or
claws for fixing the get to the hollow rib.
We prepare the hollow rib at the place where the get is to be fixed to it by
depressing or pinching its edges inwards by means of press tools so as to form
across the rib, a notch, groove or depression, the depressed or inwardly pressed
edges of the rib nearly meeting at the middle of the said rib.
We place the hollow rib thus prepared across the teated or clawed get blank
and by means of a pair of drawing through dies the rib and the get blank are
forced through the bottom die and the get blank thereby folded and closed upon
the rib so as to bring the halves of the blank parallel and at the same time
close inwards the teats or claws of the get into the cross notch, groove or
depression in the hollow rib the get or middle bit is thereby formed and
fixed to the hollow rib. The joint end of the stretcher is jointed to the pierced
ends of the get or middle bit in the ordinary way excepting that the joint pin
occupies the cross slot in the rib and prevents the slipping of the get or middle
bit on the rib.
The several figures of the accompanying drawing are drawn to a large scale
for the better exhibiting of our invention.
Figure 1 represents in plan and edge view the pierced get blank and Figure 2
represents the same in plan and section after the fixing teats or claws a, a at
the opposed sides of the two pierced holes have been raised by press tools out
of the plane of the said blank: Figure 3 represents in plan, side elevation
and cross section a portion of a hollow or paragon rib which has been prepared
according to our invention for the fixing of the get thereto. The cross noich
or groove in the rib is marked the said notch or groove being formed by
depressing or pinching inwards the edges of the said hollow rib as represented.

page_text: Figure 4 represents in plan and Figure 5 in cross section the get or middle
bit Figure 2 fashioned or closed upon and fixed to the rib in the manner herein-
before described, that is to say, the rib being placed across the get blank between
the claws or teats a, a and placed on the lower die of the drawing through dies
the operation of the said dies bends and closes the blank on the rib and at the
same time closes or forces inwards the claws or teats a, a into the cross notch
or groove of the rib as best seen in the section Figure 5 so as thereby to
fashion the get and fix it to the rib.
Figure 6 represents the get or middle bit fixed to the rib and the stretcher c
jointed thereto the joint pin passing into the cross notch bin the rib and pre-
venting the slipping of the get or middle bit on the rib.
This construction of get or middle bit is very compact being of less depth
than ordinary gets or middle bits in consequence of the joint pin of the
stretcher occupying or partially occupying the cross depression, groove or notch
in the rib.
The pinching or pressing and drawing through tools which we employ in
carrying our invention into effect are of the kind commonly used for effecting
like operations and constitute no part of our invention.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed we declare that we
claim as our invention of "Improvements in the stretcher joints of umbrellas
and parasols":—
Fixing the gets or middle bits of stretcher joints to hollow or paragon ribs
of umbrellas and parasols by forming at the inner or opposed sides of the joint
pin holes in the get blank raised teats or claws and pinching or shaping across
the edges of the hollow rib, a notch, groove or depression into which the raised
teats or claws of the get blank are pressed on the closing of the latter upon
the rib by drawing through tools the joint pin of the stretcher occupying or
partially occupying the said cross notch or depression in the rib for the purposes
and substantially as hereinbefore described and illustrated in the accompanying
drawing.
Dated this Nineteenth day of October 1899.
W. T. WHITEMAN,
Agent for the Applicants.