Improved Method and Apparatus for Spirally Coiling Wire.
Year: 1890

page_text: Date of Application, 28th Oct., 1890
Complete Specification Left, 28th July, 1891-Accepted, 10th Oct., 1891
PROVISIONAL SPECIFICATION.
Improved Method and Apparatus for Spirally Coiling Wire.
1, JOSEPH THOMPSON, of The Sphincter Grip Armoured Hose Company,
Limited, 9 Moorfields, City of London, do hereby declare the nature of this
invention to be as follows:-
This invention has for object, the manufacture of spiral coils (in wire) of any
desired pitch and diameter.
The metal may be of steel, iron, brass, or other according to the purpose, or use
for which it is intended.
For convenience I will refer to steel wire for helical springs.
For the purpose of my invention, I feed the wire from a reel, or hank through
a hole in a plain smooth collar, or tube, which may be stationary, or revolving.
Inside this collar, or tube, which is of hardened steel, I arrange a mandrel with
a spiral groove in its circumference for the reception of the wire. This mandrel is
of any desired length and the groove is of such a depth that the wire is kept in
contact with the collar, or tube as it passes along. The spirality of the coil is by
this means permanently "sett." and the wire is not fibrized on its outer surface, as
with wire simply drawn off and twisted round a plain mandrel.
Dated this 28th day of October 1890.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Joseph Thompson.
COMPLETE SPECIFICATION.
Improved Method and Apparatus for Spirally Coiling Wire.
1, JOSEPH THOMPSON, of The Sphincter Grip Armoured Hose Company,
Limited, 9 Moorfields, City of London, 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 :-
This invention has for object, the manufacture of spiral coils (in wire) of any
desired pitch and diameter.
The metal may be of any kind according to the purpose or use for which it is
intended.
Referring to the annexed drawings,
Figure 1 is a face view, Figure 2 a sectional elevation, and Figure 3 a sectional
plan showing my invention.
In carrying out this invention for making spiral springs, 1 take a suitable
block A. into which is fitted and fixed a hardened steel bush B and into this is fitted
a hardened steel collar C which revolves freely in the said bush B. Inserted in
this centrally but not touching is a steel mandrel D having a spiral groove cut in
it of the required size and pitch to suit the wire and pitch that the spring is to be
when made. This mandrel D is supported in its proper position by the bracket or
plate F into which the mandrel is fixed by the nut G and this bracket is fixed on
the block A by the screws H, H.
For the purpose of guiding the wire into the collar C, the small bracket I is
fixed on the block A, this bracket having in its under surface a groove of about
the same depth as the wire is thick and at the same angle as the spiral on the
mandrel.
The collar C has an extension to receive the pinion wheel J which is fastened

page_text: on the same. By means of a suitable train of gearing, this bush is caused to
revolve at the same circumferential speed as the wire is forced into same, thus
taking off the friction between the wire and bush.
By my invention, hard steel wire of any size can be coiled with the greatest
ease.
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. The apparatus constructed and arranged as shown in the annexed drawings
for the purpose of coiling wire in regular distance spirals.
2. In an apparatus in which wire can be coiled, the combination of revolving
collar C, fixed bush B, fixed mandrel D with spiral groove and guide I as arranged,
substantially as and for the purposes explained.
&
THE LOUI
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Joseph Thompson.