IMPROVEMENTS IN THE MANUFACTURE OF NOTCHES FOR UMBRELLAS AND SIMILAR PURPOSES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I CHARLES FREDERICK NOKES of Avenue Road Aston Birmingham in the
County of Warwick Stamper Piercer & button Manufacturer do hereby declare
the nature of my invention for IMPROVEMENTS IN THE MANUFACTURE OF NOTCHES
FOR UMBRELLAS AND SIMILAR PURPOSES, to be as follows:-
-
My improvements consist in taking a thinner blank than is now used, and
piercing the centre out in the ordinary manner Then while this pierced blank
is running in a lathe at a high velocity I force in a wheel or tool; revolving or
otherwise, properly held and make a groove for the wire without using any cutting
tool.
To clearly show the nature of my improvement I deem it desirable to explain
how notches are at present made-(I call that the notch in which the ribs of the
-umbrella are confined at the top by a wire and on which they work on the slide as
the umbrella is opened or closed).
..
.
Notches are now made in many ways Some are cast in sand, some are cast in
moulds, some are cut out of sheet metal as thick as the notch, and then pierced.
All these notches are afterwards what is called grooved; that is a niche or slot is
turned in them sufficiently deep to hold the wire which runs through the ends of
the ribs, and keeps them in their proper places.
Notches are also made by thin sheet metal or tube turned over into the shape of
a staple; but these being hollow to the bottom have no bearing for the wire to rest
on. In these notches the ribs do not work on the wire as on an axle or hinge, and
every time the umbrella is opened or closed there is a strain upon the wire which
makes this description of notch objectionable. In cast notches, or notches made out
of sheet metal and grooved, the metal has to be sufficiently thick to allow of the
groove (which is to hold the wire in its place) to be turned out.
:
My improvements thus consist in driving or forcing a wheel or other suitably
shaped piece of steel or other material having a V or otherwise shaped edge as
found desirable into the outer cut edge or side of a thinner solid notch than hitherto
used, by means of pressure exercised by levers, ratchets or similar suitable
contrivance, until such said wheel or other suitably shaped piece of steel or other
material shall have opened out in such thinner solid notch a groove of a depth and
breadth sufficient to receive the binder wire now in use, or any other depth and
breadth that may be deemed desirable.
Dated this 7th day of July 1884.
J

page_text: I, CHARLES FREDERICK NOKES of Avenue Road, Aston, Birmingham, in the
County of Warwick, Stamper, piercer, and Button manufacturer do hereby declare
the nature of my invention for IMPROVEMENTS IN THE MANUFACTURE OF NOTCHES
FOR UMBRELLAS AND SIMILAR PURPOSES and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
My improvements consist in taking a thinner blank than is now used, and
piercing the centre out in the ordinary manner. This pierced blank may better be
left flat, or stamped by pressure to any desired shape. Then while this pierced
blank is running in a lathe at a high velocity I force in a wheel or tool, revolving
or otherwise, properly held, and make a groove for the wire without using any.
cutting tool.
To clearly show the nature of my improvement I deem it desirable to explain
how notches are at present made. (I call that the notch in which the ribs of the
umbrella are confined at the top by a wire and on which they work on the slide as
the umbrella is opened or closed.)
Notches are now made in many ways. Some are cast in sand, some are cast in
moulds, some are cut out of sheet metal as thick as the notch, and then pierced.
All these notches are afterwards what is called grooved; that is a niche or slot is
turned in them sufficiently deep to hold the wire which runs through the ends of
the ribs, and keeps them in their proper places.
Notches are also made by thin sheet metal or tube turned over into the shape of
a staple; but these being hollow to the bottom have no bearing for the wire to rest
on. In these notches the ribs do not work on the wire as on an axle or hinge, and
every time the umbrella is opened or closed there is a strain upon the wire which
makes this description of notch objectionable. In cast notches, or notches made
out of sheet metal and grooved, the metal has to be sufficiently thick to allow of
the groove which is to hold the wire in its place to be turned out.
My improvements thus consist in driving or forcing a wheel or other suitably
shaped piece of steel or other material having a V or otherwise shaped edge as
found desirable into the outer cut edge or side of a thinner solid notch than hitherto
used by means of pressure exercised by levers, ratchets, or similar suitable
contrivance until such said wheel or other suitably shaped piece of steel or other
material shall have opened out in such thinner solid notch a groove of a depth and
breadth sufficient to receive the binder wire now in use, or any other depth and
breadth that may be deemed desirable.

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 what I claim
is in the manufacture of Notches for Umbrellas and similar articles
The forcing, by pressure, of a wheel or other suitable contrivance into the edge
of a pierced circular blank, thereby dividing or laying open the edge of such pierced
blank, and forming the groove to contain the binder wire now in use, or any binder
wire that it may be deemed advisable to use hereafter.
D: 101 1005