Improvements in Umbrella Frames.
Year: 1896

page_text: Date of Application, 5th Feb., 1896-Accepted, 7th Mar., 1896
COMPLETE SPECIFICATION.
Improvements in Umbrella Frames.
I, JAMES MURPHY, of 8 Suffolk Lane, Cannon Street, in the City of London,
Sanitary 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 :-
The object of this invention is to construct umbrella frames in such a way that
should any one of the ribs be broken it can be taken out and a new one put in its
place by any person of average intelligence the rib being self-fastening. Further-
more with umbrella fraines constructed according to this invention the cover can
be rolled up close to the frame or stick and will be less likely to wear out than
when fitted over ordinary umbrella frames.
In the accompanying drawings
Fig. 1 is an elevation shewing part of my improved umbrella frame attached to
a stick';
Fig. 2 is an elevation of the runner alone on an enlarged scale and Fig. 3 is a part
vertical section of same shewing part of a stretcher in position;
Fig. 4 is a sectional plan of either the top notch or the runner.
The same letters of reference where they occur are used to denote the same or
corresponding parts.
In constructing my umbrella frame I provide the upper end of each rib a with a
solid knob which projects laterally on each side of the rib. These knobs are of
an oval shape when the rib is looked at end on, and are slightly concaved on their
exterior faces so that when viewed in plan as shewn in Fig. 4, they are of an
oblong concavo-convex form. The lower end of each stretcher c is provided with
a knob 1; these knobs b' are similar in every respect to the knobs bon the ribs
and are similarly placed with reference to their respective stretchers, so that
Fig. 4 shews a true plan view of either the upper ends of the ribs or the lower
ends of the stretchers and their positions relatively to the stick e. Fig. 3 shews &
part elevation of the runner g and one of the stretchers c with its knob 6. The
position of this knob & in elevation with reference to the stick is also the position
of the knobs b on the ribs.
The runner g is made with a tube g' which encircles and slides over the
stick e and with an outer collar which encloses the annular space g³ between
it and the tube g. In the outer collar g' are a series of oval shaped apertures g¹
corresponding to the number of the stretchers c but disposed at right angles to
the oval knobs b' on the ends of the stretchers c. The top notch is similarly
made except that it is fixed to, while the runner travels over the stick, the oval
apertures to receive the knobs b on the ribs a being marked in the drawing with the
letter f¹.
The ribs or the stretchers are fitted to the top n notch or runner by giving them
a torsional twist through a right angle thus bringing their oval knobs into register
with the oval shaped apertures f and g¹ respectively. The knobs are then
inserted through the said apertures, which are made sufficiently large to take
them, until they pass the wall of the outer collars in which said apertures are
situated. The ribs or stretchers are then released when they will take up their
normal positions with the knobs at right angles to the apertures. It will be
understood that the spaces in the top notch and runner into which the knobs on
the ribs and stretchers are received should only be sufficiently large to allow the
BACA pla

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is ;-
(1.) An umbrella frame comprising a number of ribs having stretchers hinged
thereto, said ribs and stretchers being provided at their upper and lower ends
respectively with laterally projecting oval shaped knobs, a top notch and a runner
having enclosed spaces and longitudinal oval shaped apertures in their outer
collars, with which said collars the oval knobs on the ribs and stretchera are caused
to engage by twisting said ribs and stretchers through a torsional right angle
whereby said knobs are brought into line with said apertures through which they
may then be passed substantially as described.
(2.) An umbrella frame in which the ribs and stretchers are provided with
heads at their ends and the top notch and runner are provided with collars having
apertures therein to receive said heads but disposed at right angle thereto sub-
stantially as and for the purpose hereinbefore described and illustrated in the
accompanying drawings.
Dated this 5th day of February 1896.
F. W. GOLBY,
36 Chancery Lane, London, W.C., Patent Agent for the Applicant.