An Improved Tool for use in the Manufacture of Umbrellas.
Year: 1892

page_text: Date of Application, 31st Aug., 1892
Complete Specification Left, 1st Nov., 1892-Accepted, 18th Mar., 1893
PROVISIONAL SPECIFICATION.
An Improved Tool for use in the Manufacture of Umbrellas.
I, JAMES THOMAS AKERMAN, trading as J. T. Akerman and Co. of 1, Errol
Street, Whitecross Street, in the City of London, Umbrella Stick Manufacturers,
do hereby declare the nature of this invention to be as follows:-
My invention relates to a tool for use in the manufacture of umbrellas according
to another application for Letters Patent of even date herewith.
The purpose of the tool is for rapidly turning down or reducing the diameter of
the upper end of an ordinary umbrella stick in order to adapt it to receive a top
notch of lesser bore than the diameter of the stick. The object is to provide a tool
by which a stick, whenever an umbrella is to be made up on it, may be turned down
accurately to standard dimensions so as not only to fit the top notch but also fit
accurately into a tubular ferrule and cap piece by which the stick is apparently
made up again to its full diameter. This tool consists of a cutter fixed to a tubular
chuck or holder adapted to be fixed to the mandrel of a lathe, the cutter having a
straight or inclined cutting edge slightly flared or turned up at the outer end so
as to permit of the end of the stick being readily entered in the bore of the tool-
holder or chuck and so brought under the action of the cutting edge by which it is
accurately turned down to the required diameter.
Dated this 31st day of August 1892.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.
COMPLETE SPECIFICATION.
An Improved Tool for use in the Manufacture of Umbrellas.
I, JAMES THOMAS AKERMAN, trading as J. T. Akerman and Co. of 1, Errol
Street, Whitecross Street, in the City of London, Umbrella Stick Manufacturers,
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 invention relates to a tool for use in the manufacture of umbrellas according
to another application for Letters Patent dated August 31st No. 15651. The
purpose of the tool is for rapidly turning down or reducing the diameter of the
upper end of an ordinary umbrella stick for the purpose of adapting it to receive a
top notch of lesser bore than the diameter of the stick. The object is to provide
a tool by which a stick whenever an umbrella is to be made up on it may be turned
down accurately to standard dimensions so as not only to fit the top notch but also
fit accurately into a tubular ferrule and cap piece by which the stick is apparently
made up again to its full diameter.
Reference is to be had to the accompanying drawings, forming part of this
Specification, wherein Figure 1 is an external view, Figure 2 a longitudinal section,
and Figure 3 a cross-section, on line 1-1 Figure 2, of the improved tool. The
same letters of reference denote like parts in all the figures.
This tool consists of a cutter A adjustably fixed by a bolt B to a flat bed or seat
provided for it by cutting away a segment of the holder and a tubular chuck or
holder C provided with a shank adapted to be fixed in the socket of a lathe
mandrel. The holder C has a longitudinal central bore corresponding in diameter
to the size to which the stick is to be reduced and the cutter has a straight cutting

page_text: edge parallel with the axis of the holder and projecting slightly into the bore, the
extremity of which is slightly flared whilst the cutting edge is turned up at the
outer end, as at a, so as to form a cutting edge at about right angles to the main
cutting edge projecting slightly from the end of the bore whereby to start the
cutting when the end of the stick is presented to the revolving cutter and permit
of the end of the stick being readily entered in the bore of the tool-holder or
chuck and so brought under the action of the main cutting edge by which it is
accurately turned down to the required diameter.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is―
The herein described tool for turning down umbrella sticks, consisting of a holder
adapted to be fixed in the mandrel of a lathe and having a central longitudinal
bore slightly flared at the end and of a cutter fixed on a seat on the holder and
having a straight cutting edge parallel to the axis of the holder and projecting into
the bore thereof and terminating in a cutting edge approximately at right angles
to the main cutting edge, substantially as described.
Dated this 31st day of October 1892
J. T. AKERMAN,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.