Improvements in the Method of and Apparatus for Producing Needle Points upon Pins, Teeth, and upon other Short Lengths of Wire or Metal.
Year: 1892

page_text: Date of Application, 19th Jan., 1892
Complete Specification Left, 18th Oct., 1892-Accepted, 19th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in the Method of and Apparatus for Producing Needle
Points upon Pins, Teeth, and upon other Short Lengths of Wire
or Metal.
I JOHN THORNTON of Westgate, Cleckheaton in the County of York Carding
Machine Maker, do hereby declare the nature of this invention to be as follows:-
I employ two rollers preferably of chilled iron or steel, one bevelled on the face
and fitting into the other, leaving a space between the two for the pins; and
between the rollers, under the centre (preferably half the thickness of the wire
operated upon) is placed a rest, upon which the pins are dropped; the action is as
follows, the rollers revolve and inill down each end of the pin to a needle point
without any perceptible waste, at the same time straightening the body of the pin
so toughening solidifying and compressing the points of the same.
One roller may revolve slightly quicker than the other.
There being no waste of metal.
T
1000
JOHN E. WALSH,
Crossley Street, Halifax, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Method of and Apparatus for Producing Needle
Points upon Pins, Teeth, and upon other Short Lengths of Wire
or Metal.
1, JOHN THORNTON of Westgate, Cleckheaton in the County of York, Machine
Maker, 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 :-
1 employ two rollers preferably of chilled iron or steel, one bevelled on the face
and fitting into the other, leaving a space between the two for the pins or pieces of
metal to be dropped in and between the rollers, under the centre (preferably half
the thickness of wire operated upon) is placed a rest, upon which the pins are
dropped, the action is as follows, the rollers revolve and mill down or compress
each end of the pin to a needle point without any perceptible waste of metal at the
same time straightening the body of the pin and toughening, solidifying and
compressing the points of the same.
Que roller may revolve slightly quicker than the other.
Or the pins may be compressed and made with needle points from continuous
lengths of wire either fed from a reel or may be held stationary whilst being
operated upon.
DESCRIPTION OF DRAWINGS.
Fig. 1. shows a plan of my rollers for compressing pieces of wire and forming at
each end a needle point.
Fig. 2. is an elevation of Fig. 1.
Fig. 5. shows plan of rollers for compressing lengths of metal or wire and forming
at one end a needle point.
Fig. 4. shows plan of rollers for forming needle points from continuous lengths of
wire or metal.

page_text: Fig. 5. is an end elevation of Figs. 4 and 6 shewing by arrows and dotted lines
how the rollers revolve around the wire.
Fig. 6. shows plan of double rollers for forming needle points from wire or metal
which is held stationary whilst being operated upon.
I employ two rollers A and B preferably of chilled iron or steel, one bevelled on
the face and fitting into the other, leaving a space between the two for the pins or
pieces of metal C to be dropped in; and between the rollers, under the centre
(preferably half the thickness of wire operated upon) is placed a rest D, upon
which the pins C are dropped, the action is as follows, the rollers revolve and mill
down or compress each end of the pin to a needle point without any perceptible
waste of metal, at the same time straightening the body of the pin and toughening,
solidifying and compressing the points of the same.
One roller may revolve slightly quicker than the other.
Or the pins may be compressed and made with needle points from continuous
lengths of wire either fed from a reel or may be held stationary whilst being
operated upon by the rollers which revolve around the wire see Figs. 4, 5 and 6.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. Compressing wire so as to obtain pins with needle pointed ends double or
single without waste of metal for the purposes shown and described.
2. Compressing wire by means of V shaped compressing rollers revolving around
the wire as it is fed from the reel for the purposes shown and described.
3. Compressing wire by means of V shaped compressing rollers revolving around
the stationary wire and operating upon the two points of the pin for the purposes
shown and described.
Dated this Seventeenth day of October 1892.
JOHN E. WALSH,
Crossley Street, Halifax, Patent Agent for the Applicant.