Improvements in the Ribs and Gits of Umbrella Frames.
Year: 1888

page_text: Date of Application, 1st Oct., 1888
Complete Specification Left, 1st Aug., 1889-Accepted, 14th Sept.. 1889
PROVISIONAL SPECIFICATION.
Improvements in the Ribs and Gits of Umbrella Frames.
FREDERICK ARTHUR ELLIS of Tabard Works, Glengall Road Peckham in the
County of Surrey, Engineer, do hereby declare the nature of this invention to bo as
follows:-
This Invention relates to improvements in the ribs and gits of umbrella frames and
consists particularly of certain improvements upon the subject matter of Invention
specified for under Letters Patent No. 4507, dated 11th April 1885, granted to the
present applicant and has reference to the jointing of the stretcher to the rib, and the
git" employed therefor.
"
In the Specification of the Letters Patent above referred to it is stated that the
jointing "pin in the eye of the stretcher is brought as close as may be down into
the body of the rib," that is, the groove of the rib receives the jointing piece, or the
git piece is wrapped or laid over and around the rib. In strengthening the rib the
git is of service and this object should be accomplished at the same time that the joint
of the stretcher to the rib lies as clean as possible to the rib when the umbrella frame
is closed.
1 flatten the rib and fold it upon the clear edges of the groove, that is I depress
the rib edges at this point, so as that the joint-pin may be passed through the fork
end of the stretcher close to the flattened portion of the rib without piercing or
weakening the rib at this point but as before stated the rib is strengthened by folding
down the edges thereof.
In a further modification I depress the back of the rib so as to form a depression or
recess into which will lie and be received the thickness of the metal forming the git.
When the edges of the grooved rib are folded over to form channels into or onto
which a sliding jointing-lug is passed, the said lug slide may be made with a clearance
corresponding to the depressed portion of the rib where the jointing pin is passed
&cross.
As the lateral dimensions of the rib and stretcher are not the points upon which
the neatness of the folding of the frame upon the stick depends I add in some cases
to the efficiency of the foregoing specified jointing of the rib and stretcher by
swelling out laterally the rib at this part and so retain strength with cleanness of
finish.
In making the sliding piece forming the jointing-lug for the grooved rib the metal
may be cut away to give clearance to the ends of the fork at the joint part when the
frame is opened.
It is understood that the said sliding jointing lug corresponds to the ordinary lug of
the git.
For an ordinary "paragon" rib the git may be formed with flattened ends when
placed inside the groove of the rib and have the edges of the ribs stamped down
onto the end pieces in combination with the depression of the rib edges for allowing
the joint pin to lie close.
Dated 1st October 1888.
WALTER A. BARLOW,
Agent for F. A. Ellis.

page_text: .
COMPLETE SPECIFICATION.
Improvements in the Ribs and Gits of Umbrella Frames.
I, FREDERICK ARTHUR ELLIS, of "Tabard Works," Glengall Road, Peckham, in
the County of Surrey, 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 certain improvements in Umbrella Ribs or frames, and
consists particularly of certain improvements upon the subject matter of Inventions
specified for under Letters Patent, No. 4507, dated 11th April, 1885; and
No. 10,914, dated 9th August, 1887, granted to the present applicant, and has
reference to the jointing of the stretcher to the rib and the git employed therefor.
In the specifications of the Letters Patent above referred to it is stated that "the
jointing pin in the eye of the stretcher is brought as close as may be down into the
body of the rib ; "that is, the groove of the rib receives the jointing piece; or
the git piece is wrapped or laid over and around the rib. In strengthening the
rib the git is of service, and this object should be accomplished at the same time that
the joint of the stretcher to the rib lies as clean as possible to the rib when the
umbrella frame is closed..
Referring to the Specification under Patent No. 4507, Fig. 3, and the Specification
under Patent No. 10914, of 1887, in the Figures 1 to 4 of the sheets of drawings
annexed thereto, the jointing allows and brings the stretcher to lie within the rib.
Again, in Figures 8, and 9, of the later Specification, a compound fork piece of the
stretcher end is shown, and the jointing pin d, is received in a hollow or dwell of the
walls of the rib channel. I strengthen this jointing, apply it to simple forms of
stretcher ends and joints, and employ the construction of rib permitting of the
stretcher lying therein by the following means.
I flatten the edges of the sides of the rib and fold it upon the clear edges of the
channel; that is, 1 depress the rib edges so as that the joint pin may
be passed
through the fork end of the stretcher close to the flattened portion of the rib
without piercing or weakening the rib at this point; but, as before stated, the rib is
strengthened by folding down the edges thereof. In a further modification 1 depress
the back of the rib so as to form a depression or recess into which will lie and he
received the thickness of the metal of which the git is formed. When the edges of
the grooved rib are folded over as in Fig. 12 of Patent No. 10,914, to form channels,
into which a sliding jointing lug is passed, the said lug-slide may be made with a
clearance corresponding to the depressed portion of the rib where the jointing pin is
passed across. As the lateral dimensions of the rib and stretcher are not the points
upon which the neatness of the folding of the frame upon the stick depends, I add
in some cases to the efficiency of the foregoing specified jointing of the rib or
stretcher by swelling out laterally the rib at this part, and so retain strength with
cleanness of finish. The metal of the rib below the jointing may be cut away to give
clearance to the ends of the fork at the joint part when the frame is opened. For an
ordinary shaped rib the git may be formed with flattened ends placed inside the
channel of the rib, and have the edges of the ribs stamped down on to the end pieces
in combination with the depression of the rib edges for allowing the joint.pin to lie
close.
In order that my Invention may be well understood, I have hereunto annexed a
sheet of drawings illustrative thereof, wherein :-
Fig. 1, is a side view of a portion of rib showing the rib edges a, depressed and
turned in at a¹; Fig. 2 is a view on the channelled side of the rib a, showing the
depressions a¹.
In this construction, a similarly applied git or middle-piece according to Patent
No. 10,914, of 1887, may be employed; that is, any internal git piece to which
the fork of the stretcher can be jointed, but the sides of the rib are to have depressions
or hollows a¹.

page_text: Fig. 3, is a side view of rib for accommodating a wrapped-over git-piece, the back,
edges, and sides of the rib being depressed slightly at a.
Fig. 4 shows, in side view, the combined joint with rib a, stretcher b, wrapped git-
piece and joint pin d, passing through the depression a' of the rib and rivetted in
the git piece c.
Fig. 5 is a top view of Fig. 4. This combination of parts is a developement of the
matter shown in Figs. 8, 9, and 13, of No. 10,914, of 1887. The sides of the git
piece are turned down into the channel of the rib similarly to or deeper than are the
sides of the git pieco described in reference to Fig. 3, of No. 4507, of 1889.
Fig. 6, shows in side view a modification of the rib for accommodating the wrapped
git. The depressions a³, are at the back of the rib and upon the edges of the sides of
the channel with the depression a', for the passing of the joint pin. In other respects
the fitting will be as before described for Figs. 4 and 5.
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:
Firstly. In the jointing of the ribs and stretchers of umbrella frames, the
depressions a', upon the edges of the sides of the ribs in combination with the git and
the joint pin passed across the rib as and for the purpose herein set forth.
Secondly. In the jointing of the ribs and stretchers of umbrella frames the
depressions a¹, upon the edges of the sides of the ribs, with the git and the joint pin
in combination with the stretcher lying in the rib channel as herein set forth.
Thirdly. The jointing of the ribs and stretchers of umbrellas with the depressions a²,
of the ribs and the depression a³, in the body of the rib as herein set forth in reference
to and shown by Figures 3 to 6 of the drawings.
F. A. ELLIS,
Tabard Works, Glengall Road, Peckham.
F. A. ELLIS,
Tabard Works, Glengall Road, Peckham.