IMPROVEMENTS IN UMBRELLA AND PARASOL FRAMES
Year: 1873

page_text: PROVISIONAL SPECIFICATION left by Alexander Melville Clark at
the Office of the Commissioners of Patents, with his Petition, on
the 28th August 1873.-A communication from abroad by Pierre
Duchamp, junior, of Paris, France.
I, ALEXANDER MELVILLE CLARK, of 53, Chancery Lane, in the
County of Middlesex, Patent Agent, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN UMBRELLA AND PARASOL FRAMES," to be
as follows:-
This Invention relates to improvements in umbrella and parasol
frames by which the ribs and stretchers are more firmly.connected to the
top notch and runner, and all rotatory movement of the runner upon the
stick, whereby the ribs and stretchers become twisted and their joints
weakened is prevented. The top notch and runner notch are each made
longer than usual in one piece of sheet metal corrugated to form the
grooves for the reception of the ribs and stretchers, which grooves
extend throughout the length of the notch and runner so as to hold the
ribs and stretchers more firmly than when held merely by the extremities
as hitherto. To prevent the twisting of the runner upon the stick a
longitudinal guide is provided, which is fixed upon the stick and is

page_text: received in one of the internal grooves of the runner. The extremities
of this guide are made flexible and bent so as serve as catches for the
runner in lieu of the ordinary spring catches, and no slots being required
in the stick it is not therefore weakened as with the ordinary catches.
This Invention is illustrated in the accompanying Drawings in which
Figure 1 shows the umbrella or parasol frame closed.
of this guide are made flexible and bent so as serve as catches for the
runner in lieu of the ordinary spring catches, and no slots being required
in the stick it is not therefore weakened as with the ordinary catches.
“This Invention is illustrated in the accompanying Drawings in which
Figure 1 shows the umbrella or parasol frame closed.
Figures 2, 3, and 4, show an elevation and sections of the top notch.
Figures 5 and 6 show in elevation and cross section the improved
runner.
Figures 7 and 8 show in elevation and cross section a part of the stick
with the combined guide and catches applied.
The same letters of reference indicate corresponding parts.
A, stick which is the same as usual except that it is not weakened by
any slots for the runner catches; B, ribs; and C, stretchers flattened at
the ends by which they are jointed to their respective notches for a
portion of their length equal to the length of the notch, so that they
may lie in the grooves of the notch. They are also slightly bent so as
to abut against the stick when the umbrella is closed to prevent the
parts of the frame being crowded too close together; D, top notch
having grooves throughout its length for the ribs and a recess for the
tying in wire; E, runner made like the top notch. Below the groove
for the tying in wire is a recessed part e where the runner is slotted to
receive the catch f; G, longitudinal guide rod fastened along the stick A
and bent at its extremities and g, as shown to serve as catches for the
runner as before mentioned.