Improvements in the Manufacture of the Furniture and Fitttings of Umbrella and Parachute Frames.
Year: 1893

page_text: Date of Application, 21st Feb., 1893
Complete Specification Left, 20th Nov., 1893-Accepted, 23rd Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of the Furniture and Fitttings of
Umbrella and Parachute Frames.
I BRIAN GEORGE COLEBY of Hillside 203 Richmond Road Putney Surrey
Umbrella Manufacturer do hereby declare the nature of this invention to be as
follows:
:-
My invention consists of the alloyage of aluminium with copper in a new
proportion to be fully described in the Complete Specification and to be therein
designated "Non-corrodible Gower Metal" to the manufacture of the frames &
the furniture & fittings of umbrella & parachute frames.
The very great advantage of this new combination is an alloyage which is
absolutely non-corrodible, & which is very much lighter than any metal or
compound metals which have hitherto been applied to this purpose.
important considerations in these structures.
Dated this 21st day of February 1893.
Most
BRIAN GEO. COLEBY.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of the Furniture and Fittings of
Umbrella and Parachute Frames.
I, BRIAN GEORGE COLEBY, of "Hillside," 203 Upper Richmond Road, Putney,
Surrey, 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 :-
:-
My improvements in the manufacture of the furniture and fittings of umbrellas
and parachutes apply to the furniture and fittings of all umbrella like articles as
parasols, en tout cas and the like; hereinafter I use the word "unbrella" in
this general sense.
The points at which all umbrella frames are destroyed by rust and corrosion, are
the head-wires, the eyed-ends of the ribs, and the eyed-ends of the stretchers and
the gits or joints by which the stretchers are attached to the ribs. This rust or
corrosion not only destroys the frames themselves, but it stains and eventually
destroys the silk, the silk and woollen, and the silk and cotton materials of which
the covers of umbrellas are manufactured.
By my invention I manufacture the runners, top-notches, gits, joints and the
eyed-ends of the ribs and stretchers of umbrella frames of a new combination
of aluminium and copper in the proportion of five parts of aluminium to one
part of copper and I have designated this new alloy and combination " Non-
corrodible Gower Metal." This metal is sufficiently hard and tough, impervious to
rust and corrosion, and has a specific gravity very much less than any metal or
compound of metals which has hitherto been applied to the manufacture of the
furniture of umbrella frames.
For my uses the metal is rolled into sheets both thick and thin and it is drawn
into tubes and in these forms it replaces brass in the manufacture of the umbrella
furniture and fittings.
For wiring the joints at the top notch and the runner I employ wire of a some-
what more ductile alloy of aluminium and copper say two parts of the former to one
part of the latter; this wire is non-corrodible.

page_text: Umbrellas furnished and fitted in accordance with my invention are more
durable than others as the frame is much less liable to rust or corrode; they are
also lighter.
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 :-
Umbrella frames furnished and fitted substantially as described with the new
alloy of aluminium and copper herein termed "Non-corrodible Gower Metal."
Dated this 17th day of November 1893.