Improvements in the Manufacture of Reels or Bobbins.
Year: 1896

page_text: Date of Application, 10th Aug., 1896
Complete Specification Left, 10th May, 1897-Accepted, 12th June, 1897
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Reels or Bobbins.
1, FREDERICK JONES, of 76 Wakehurst Road, New Wandsworth, in the
County of Surrey, Electrician, do hereby declare the nature of this invention to
be as follows:-
My invention relates to reels, or bobbins, more particularly to those used in the
construction of electro-magnets, though it is also applicable to reels, or bobbins,
for other purposes, and has for its object to manufacture such reels, or bobbins, in
a more economical manner than has hitherto been accomplished.
As is well known, reels or bobbins are usually turned out of wood, metal or
other material, the minimum depth of which has to be not less than the diameter
of the flange required for the bobbins. This necessitates a waste of material in
turning the neck of the said reel, or hobbin, and also in boring for the reception of
the core, and requires special machinery and skilled labour to perform those
operations, moreover, it is a tardy and expensive method of manufacture.
According to this invention reels, or bobbins, are manufactured from tubing of
any suitable ductile metal, or metallic alloy, of the required internal diameter, for
the reception of the core intended to be used, and of any convenient external
diameter. This tubing is cut into suitable lengths and flanges afterwards formed
thereon by forcing the ends of the said lengths outwards, by hammering, spinning
or other well known and convenient means.
Reels, or bobbins, made of tubing, in the manner as above described, are
manufactured more cheaply than has hitherto been accomplished, all waste of
material is avoided and less skilled labour is required.
Dated this 10th day of Ananet 1996
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Reels or Bobbins.
I, FREDERICK JONES, of 76 Wakehurst Road, New Wandsworth, in the
County of Surrey, Electrician 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 reels, or bobbins, more particularly to those used in the
construction of electro-magnets, though it is also applicable to reeks, or bobbins,
for other purposes, and has for its object to manufacture such reels, or bobbins, in
a more economical manner than has hitherto been accomplished.
As is well known, reels or bobbins, are usually "turned" out of wood, metal or
other material, the minimum depth of which has to be not less than the diameter
of the flange required for the bobbins. This necessitates a waste of material in
"turning" the neck of the said reel, or bobbin, and also in boring for the reception
of the core, and requires special machinery and skilled labour to perform these
operations, moreover, it is a tardy and expensive method of manufacture.
According to this invention reels, or bobbins, are manufactured from tabing of

page_text: any suitable ductile metal, or metallic alloy, of the required internal diameter, for
the reception of the core intended to be used, and of any convenient external
diameter. This tubing is cut into suitable lengths and flanges afterwards formed
thereon by forcing the ends of the said lengths outwards, by hammering, spinning,
or other well known and convenient means.
In the accompanying drawing one suitable means of manufacturing uniformly
reels, or bobbins, from ductile metal tubing is shown, and consists of a tool or
holder (illustrated by Figs. 1. and 2. in plan and elevation respectively) made in
two parts A and B, hinged together at C and normally kept closed by a spring D.
A concave a. and b. is cut or formed on each of the inner faces of the tool or holder,
which coincides when the holder is closed and forms a hole for the reception of a
suitable length of metallic tubing E, and is securely held therein by means of the
spring D, at one end of the holder, and a ring F. forced over the other end which
is suitably tapered, thus clamping the two parts A. and B and the metallic
tubing E together, as shown. A portion of the parts A. and B, at right angles to
the concaved parts, is recessed as shown at c and d. to a depth equal to the depth
of flange required for the reel, or bobbin. The method of manufacturing the reel,
or bobbin is as follows;-A length of ductile metal tubing E equal to that of the
depth of the tool, or holder, at . x. is inserted in the hole formed by the concaves.
in the parts A and B, the ring F is slipped over the tapered end securing the
tubing in the bolder. The holder with the tubing is then placed upon a suitable
table G in the position shown in Fig. 2. and the portion of tubing protruding above
the recessed part is spread outwards and downwards, by hammering, or other
convenient means, until one flange is formed, as indicated by Fig. 3. The holder,
with the tubing, is afterwards turned in the reverse position and the recessed part o
placed upon a suitable projection, or raised part of the table G, and a flange is
similarly formed on the other end of the tubing. Upon releasing the clamping
ring F, the holder can be opened and the metallic tubing, now in the form of a
reel, or bobbin, as illustrated by Fig. 4., can be taken therefrom, and if necessary
the said reel can be put on a lathe where any inequalities can at once be taken
off by means of a "cutter "such as illustrated by Fig. 5.
Reels, or bobbins, made of tubing, in the manner as above described, are
manufactured more cheaply than has hitherto been accomplished, all waste of
material is avoided and less skilled labour is required.
I wish it to be particularly understood that I do not wish to claim the precise
mcans as herein before described for manufacturing reels, or bobbins from ductile
metallic tubing, as it will be obvious that the method of manufacture could be
considerably varied; but
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, 1 declare that what I
claim is ;-
1st. A reel, or bobbin, manufactured of tubing of ductile metal, or metallic alloy,
for the purpose herein before described.
2nd. A reel, or bobbin, manufactured from a length of tubing of ductile metal,
or metallic alloy, the ends of the said tubing being forced (spun, or by any
other suitable means) outwards to form and constitute flanges, for the purpose
hereinbefore described.
נית
FREDERICK JONES.