Improvements in Umbrella Ribs and Stretchers.
Year: 1894

page_text: Date of Application, 7th Sept., 1894
Complete Specification Left, 16th Nov., 1894-Accepted, 5th Jan., 1895
PROVISIONAL SPECIFICATION.
Improvements in Umbrella Ribs and Stretchers.
WILLIAM PETLEY BARBER 11 Langley Road, Small Heath, Birmingham,
Warwickshire, Umbrella Furniture Manufacturer do hereby declare the nature of
this invention to be as follows:-
:-
The improvements relate more particularly to the fluted umbrella ribs and
stretchers and consist in fixing the joint or get bit inside the groove of the rib and
in forming the wire in the shape of the letter C instead of the letter U.
The get bit has projections which after being placed inside the groove of the rib
are opened by means of a tool or punch which presses them under the groove and
fixes them firmly in their place.
By this means there is no part of the get bit wrapped round the outside of the
rib and thus more compactness is gained.
Dated this Sixth day of September 1894.
Improvements in Umbrella Ribs and Stretchers.
I, WILLIAM PETLEY BARBER, of Langley Road, Small Heath, Birmingham,
in the County of Warwick, Umbrella Furniture Manufacturer, 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 improvements in connecting or jointing fluted or
paragon umbrella ribs and stretchers, and consists essentially in fixing the joint or
get bit" inside the groove of the rib in the manner hereinafter more particularly
described.
In order to enable my invention to be readily understood I will describe the
same by reference to the accompanying drawing, the several figures of which are
drawn to a scale of about four times the full size.
The ribs are manufactured from O-shaped wire or from the ordinary fluted or
paragon U-shaped wire, a piece of the latter section being shewn in side view and
cross section respectively in Figures 1 and 2 of the accompanying drawing.
When I use this U-shaped wire I form that part of it, where the " get" or
"middle bit" is to be fixed, of a O-shape in cross section, by means of suitable
tools, such as, a pair of dies (similar to that shewn at a, b Figure 3) by the use of
which the wire c will be made O-shaped at the part required as shewn in the cross
section at Figure 4 and in side view and plan in Figures 5 and 6 respectively.
I make the " get bits" by first stamping out of suitable sheet metal, such as,
iron, steel or brass, blanks d, of the shape shewn in Figure 7, and I pierce holes e, e
therein in the usual manner. I take a rib either of the O-shape, or of a U-shape
formed into a O-shape at the part where the "get bit" is to be placed, such as is
shewn in Figures 4, 5 and 6, and after hardening and tempering the rib I place it
Paine xd1

page_text: in the lower one of a pair of dies f g adapted to receive it, such as is shewn
respectively in elevation and plan in Figures 8 and 9. The " get bit" d is then
placed on the die g and over the rib c, as shewn in Figures 8 and 9, and the upper
die or punch Figure 8, being pressed down forces the "get bit" d into the rib
turning the sides h, h of the "get bit upright" and bringing the holes e, e opposite
one another as clearly shewn in side elevation in Figure 10, in cross section in
Figure 11 and in plan at Figure 12. Another punch is then struck into the
get bit" between the sides h, h thereof so as to spread out the sides of the
parts i, i of the "get bit" within the rib and force them against and under the sides
of the rib thereby securely fixing the " get bit" in its place, as clearly shewn in
Figures 13 and 14 of the drawing.
61
By this mode of manufacture it will be seen that I can provide an umbrella rib
with 8
"get bit" which is fixed within the hollow of the rib without any part of
the "get bit" being wrapped outside the rib as has hitherto been the practice and
by this means I obtain more compactness than hitherto.
By the use of my improved "get bit "I am also enabled to employ a stretcher
having a three pronged fork as usual but with the prongs closer together than
hitherto which enables me to obtain a solid joint with less thickness when the rib
and stretcher are rivetted together as shewn in Figure 15; I have also found that..
by fixing the "get bit" within the hollow rib instead of outside as hitherto that
there is less liability of the ribs breaking at the joint.
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 1
claim is :-
-
1. An umbrella rib provided with a “get bit” fixed within the hollow of the rib,
substantially as hereinbefore described.
2. A "get bit" for the joint of umbrella ribs and stretchers fixed within an
umbrella rib of O-shape in cross section or formed at the required part into a
O-shape substantially as herein before described and illustrated in the several figures
of the accompanying drawing.
3. An umbrella rib and stretcher jointed together by means of a
« get bit" fixed
within the fluted or hollow rib, substantially as hereinbefore described and
illustrated in Figure 15 of the accompanying drawing.
Dated the 16th day of November 1894.
G.-F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.