IMPROVEMENTS IN FRAMES FOR UMBRELLAS AND PARASOLS
Year: 1876

page_text: LETTERS PATENT to Peter Jensen, of Chancery Lane, London, for the Invention
of "IMPROVEMENTS IN FRAMES FOR UMBRELLAS AND PARASOLS." A com-
munication from abroad by Richard George Radway and William Daniels,
both of the City and State of New York, United States of America.
PROVISIONAL SPECIFICATION left by the said Peter Jensen at the Office of
the Commissioners of Patents on the 27th June 1876.
PETER JENSEN, of Chancery Lane, London.
"IMPROVEMENTS IN FRAMES FOR
UMBRELLAS AND PARASOLS." (A communication from abroad by Richard George
Radway and William Daniels, both of the City and State of New York, United
States of America.)
This Invention relates to the manner of making the joints upon which the
respective parts move as the frame is opened or closed. The ends of the ribs and
one or both ends of the stretchers are made with a ball joint or with an eye; the
latter by either bending up the wire or by flattening the same and piercing the
metal, or else the end of the rib or stretcher terminates with a T head. In either
instance the parts are laid into a properly shaped metal mould and type, or other
suitable metal cast into such mould to form the joint ring that is upon the traveller
or surrounds the stick. The melted metal running into the eyes of the ribs
or stretchers or around the balls forms the joint by the simple act of casting,
thereby avoiding the expense of wiring the parts together at the notch rings.
The tube of the runner may be cast at the same time as its notch ring, or else
the metal tube may be put into the mould and the metal cast around it. The
joint between each stretcher and its rib is made of metal cast around the end of the
stretchers, such stretcher ends being made with eyes, T shapes, or balls.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Peter Jensen in the Great Seal Patent Office on the 21st December
1876.
"IMPROVEMENTS IN FRAMES FOR
PETER JENSEN, of Chancery Lane, London
UMBRELLAS AND PARASOLS." A communication from abroad by Richard George
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page_text: Radway and William Daniels, both of the City and State of New York, United
States of America.
This Invention relates to the manner of making the joints upon which the
respective parts move as the frame is opened or closed. The ends of the ribs and
one or both ends of the stretchers are made with a ball joint or with an eye; the
latter by either bending up the wire or by flattening the same and piercing the
metal, or else the end of the rib or stretcher terminates with a T head. In either
instance the parts are laid into a properly shaped metal mould, and type or other
suitable metal cast into such mold to form the ring of joints that is upon the
traveller or surrounds the stick. The melted metal running into the eyes of the
ribs or stretchers or around the balls forms the joint by the simple act of casting,
thereby avoiding the expense of wiring the parts together at the notch rings. The
tube of the runner may be cast at the same time as its notch ring, or else the metal
tube may be put into the mould, and the metal cast around it. The joint between
each stretcher and its rib is made of metal cast around the end of the stretchers,
such stretcher ends being made with eyes, T shapes, or balls.
In the Drawing Fig. 1 shows the ends of such ribs or stretchers. The rib or
stretcher a is made with an eye by bending up the wire; the stretcher or rib b has
the eye formed by flattening and perforating the same with a punch, or by boring.
The rib or stretcher c has a short pin put through such hole. The rib or stretcher d
has a ball shaped end, and the rib or stretcher e has a T shaped end made by
spreading the metal of the rib or stretcher. In all instances the ribs or stretchers
are laid radially in a mould shown in plan, Fig. 2, and in section, Fig. 3, which
has grooves adapted to receive such ribs or stretchers, and the inside of the mould
is of the proper shape for casting the ring of for the runner tube i, or for casting the
separate ring for the crown of the umbrella, as shown in Fig. 4. The melted metal
being poured into such mould runs into the eyes or around the joint ends of the
ribs or stretchers, and holds them together, so that when taken out of the mould
the ribs or stretchers will swing at their ends upon the joints formed by the cast
metal of the ring as the frame is opened or closed.
The ends of the ribs or stretchers may be dipped into a mixture of clay and water
or similar material before being laid in the mould to prevent the metal cast around
them, binding the parts, and preventing the ribs or stretchers turning freely upon
the joints in the rings.
If desired the runner tube i or a short metal tube may be placed in the mould
for the ring to be cast around it, as shown in Fig. 6, or the mould may be made
so that this runner tube is cast at the same time as the ring f.
The joints between the stretchers and the center portions of the ribs are to be
made in a similar manner; the outer ends of the stretchers being made in one of
the forms shown in Fig. 1 are laid one by one in a mould with the ribs adjacent,
and a joint of type or similar metal cast around the parts in the general form shown
in Fig. 5.
What is claimed and desired to be secured by Letters Patent is, the joint ring for
the runner or for the ribs of umbrella or parasol frames cast around the ends of the
ribs or stretchers, and forming the joints for the same, as set forth.
In witness whereof, I, the said Peter Jensen, have hereunto set my hand
and seal, this Twenty-first day of December, in the year of our Lord One
thousand eight hundred and seventy-six.