Improvements in Tools or Appliances for Making Wire Spirals or Springs for Wire Mattresses, and for other purposes.
Year: 1893

page_text: Date of Application, 5th June, 1893
Complete Specification Left, 5th Mar., 1894-Accepted, 5th June,
1894
PROVISIONAL SPECIFICATION.
Improvements in Tools or Appliances for Making Wire Spirals or
Springs for Wire Mattresses, and for other purposes.
1, SAMUEL WILLIAM JOHNSON, of 1, Oxford Place, Clifton Road Aston,
Warwickshire, Engineer and Machinist, do hereby declare the nature of this
invention to be as follows:-
This invention consists of the herein described improvements in tools or
appliances for making wire spirals or springs in the manufacture of wire mattresses
wire door mats and other coiled wire articles and for making wire coils or springs
for other purposes.
A tool or appliance constructed according to this invention for making wire
spirals or springs is adjustable so as to enable wire spirals or springs of various
diameters and pitches or of various diameters or pitches to be made with the same
tool or appliance and moreover when tinned or other metallic coated wire is being
used by my improved tool or appliance there is so little friction that the said
coating is not scraped off or otherwise damaged which is a defect when making wire
coils or spirals with tools constructed in the usual way.
In carrying out my invention I provide a nose-piece mounted upon a suitable base
and having a small hole through which the continuous length of wire to form the
spiral or spring is forced by the usual pair of rolls at the back of the nose which
rolls pull the wire forward off the swift. At the front of the nose I provide a metal
block having
a curved recess so shaped and situated relatively to the said nose that
as the wire issues from the nose it passes into and out of the recess and is by the
said recess curved into a spiral form the continuous length of wire which is being
forced through the nose forming a tangent to the spiral. The said block is by
preference made adjustable so that its position relatively to the nose can be varied
to make spirals of various pitches and diameters. At that part or at those parts of
the block against which the wire rubs as it issues from the nose there may be one
or more grooved or other rollers for the wire to bear against and thus prevent any
rubbing of the wire.
When the spiral or spring is required to be of a coarse pitch I provide another
metal roller which I will call the pitch roller the axis of which is or may be at
about right angles to the straight portion of the wire or this pitch roller may be
otherwise arranged so as to act upon the spiral or spring as it leaves the other said
roller or rollers or curved recess and thus cause the wire to be bent into a spiral or
coil at a different angle to the continuous length of wire and thus form the spiral
of a coarser pitch than if the pitch roller were not used. Or instead of employing
the said pitch roller I may use a block or pin similarly situated which will have the
same effect but I prefer the roller as it causes less friction and does not rub the
wire. The said pitch roller or block or pin is carried by an arm fitting adjustably
in a socket and fixed therein by a set screw and this socket has another arm at
about right angles to the first said arm and also fixed adjustably in a socket by a
set screw and this second socket has an arm at about right angles to the second arm
and also fixed adjustably in a socket thus enabling the pitch roller or block or pin
to be adjusted and fixed in any required position relatively to the wire so as to form
a spiral or coil of any required pitch or diameter.
The said arm or arms carrying the said pitch roller or pin or block may by means
of suitable gearing be made to move automatically nearer to or farther from the
centre of the wire spiral or spring as it is being formed thereby forming a taper
spiral or spring or a spiral or spring which gradually increases in diameter and then

page_text: becomes gradually smaller again at regular intervals to be afterwards cut up into
taper springs or spirals or springs or spirals which are smaller at their ends than at
the middle.
Dated this 2nd day of June 1893.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Tools or Appliances for Making Wire Spirals or
Springs for Wire Mattresses, and for other purposes.
I, SAMUEL WILLIAM JOHNSON, of 1, Oxford Place, Clifton Road, Aston,
Warwickshire, Engineer and Machinist, 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 consists of the herein-described improvements in tools or
appliances for making wire spirals or springs in the manufacture of wire mattresses
wire door mats and other coiled wire articles and for making wire coils or springs
for other purposes.
.
A tool or appliance constructed according to this invention for making wire
spirals or springs is adjustable so as to enable wire spirals or springs of various
diameters and pitches or of various diameters or pitches to be made with the same
tool or appliance and moreover when tinned or other metallic coated wire is being
used by my improved tool or appliance there is so little friction that the said
coating is not scraped off or otherwise damaged which is a defect when making wire
coils or spirals with tools constructed in the usual way.
I will describe my invention by referring to the accompanying drawing on
which
Fig. 1 is a side elevation; Fig. 2 is a plan and Fig. 3 is an end elevation of a
tool or appliance constructed according to this invention for making wire spirals or
springs for wire mattresses and for other purposes;
Fig. 4 represents in end elevation front elevation and in plan a recessed metal
block forming as hereinafter described a portion of the tool or appliance represented
by Figs. 1, 2 and 3;
Fig. 4 shews a modified form of the said block;
Fig. 5 represents in side and end elevation and Fig. 6 in plan the outer portion
of the nose piece of the said tool or appliance shewn by Figs. 1, 2 and 3, and
Fig. 7 is a side elevation and Fig. 8 is a. plan of one half of the inner portion of
the said nose piece; and
Fig. 9 shews another arrangement of my invention hereinafter described.
The same letters of reference indicate the same or corresponding parts in all the
figures of the drawing.
In carrying out my invention I provide a nose piece A mounted upon a suitable
base B and made with a small hole c¹ through which the continuous length of
wire D to form the spiral or spring D' is forced by the usual pair of rolls E¹ E
at the back of the nose A which rolls pull the wire D forward off a swift
as in other tools or appliances for making wire spirals or springs.
The nose
piece A is by preference made cranked as shewn on the drawing so that the wire
spiral D' (see Fig. 2) will leave the machine in a line parallel with the line of
wire D entering the rolls E¹ E. The hole c¹ passes through the nosepiece A from
end to end and in order to facilitate making this hole c' in the nose piece the latter
is made in halves one of which is shewn separately by Figs. 7 and 8 and secured
together by an outer socket F (shewn separately by Figs. 5 and 6) and by the
other part of the nose piece A fitting in the head or holder G where the nose piece

page_text: is secured by the set screw g¹ this holder G having a shank g² fitting in the base B
and there secured by the set screw g³. This method of holding the nose piece A
admits of adjusting the same to its true position according to the size of spiral
required. At the front of the nose A I provide a metal block H shewn separately
by Fig. 4 made with a curved recess h¹ which as shewn more particularly by Fig. 2
is so shaped and situated relatively to the nose A that as the wire D issues from the
nose A it passes into and out of the recess h¹ and is by the recess ' curved into a
spiral form the continuous length of wire which is being forced through the nose A
forming a tangent to the spiral D', see Fig. 2. It will be seen that this block H has
a flange at the bottom of the recess against which the spiral D' bears as it issues
from the recess h'. The block His by preference carried by the block holder I which
is provided with a shank ¹ fitting in a hole in the base B and there secured by the
set screw so as to permit of the block H and holder I being raised or lowered or
turned slightly either one way or the other so as to adjust the position of the curved
block relatively to the nose A according to the pitch or size of spiral D' which is
required. At that part or at those parts of the block H against which the wire D
rubs as it issues from the nose A there may as shewn for instance by Fig. 4* be one
or more rollers such as h³, 1, 15, for the wire to bear against and thus prevent any
rubbing of the wire.
In combination with the nose A and the block H I provide metal roller J which
I call the pitch roller the axis of which is or may be at about right angles to the
straight portion of the wire D, that is the portion which is within the fore part of
the nose A, so as to act upon the spiral or spring as it leaves the block H and thus
cause the wire D₁ to be bent into a spiral or coil at a different angle to the
continuous length of wire. Or instead of employing the pitch roller J a block or
pin similarly situated may be substituted therefor, but I prefer the roller J as it
causes less friction and does not rub the wire. The roller J has a small groove j¹
turned in it into which the wire engages as it issues from the block H.
The pitch
roller J (or the block or pin which is used instead of the roller J) is carried by an
arm fitting adjustably in the socket K and fixed therein by the set screw k¹ and
this socket K has another arm k2 at about right angles to the arm and also fixed
adjustably in the socket L by the set screw and this second socket L has an arm 12
at about right angles to the second arm k² and also fixed adjustably by set screw m¹
in a socket or bearing M formed with the base B thus enabling the pitch roller J
(or the block or pin which is used in place of the pitch roller J) to be adjusted
and fixed in any required position relatively to the wire so as to form the spiral or
coil D' of any required pitch or diameter. Thus to make the spiral or coil D' of
smaller diameter than shewn on the drawing the roller J (or the block or pin
which is used in place of the roller J) has to be set nearer to the axis of the
coil D', and to make the coil or spiral of larger diameter the roller J has to be set
farther away from the axis of the coil D'. To vary the pitch of the coil or spiral D¹
the roller J has to be set nearer to or farther from the nose piece A as will readily
be understood.
The arms j, k², 12, carrying the pitch roller J (or carrying the pin or block when
used in place of the pitch roller J) may by means of suitable gearing be made to
move the roller J or said pin or block automatically nearer to or farther from the
centre or axis of the wire spiral or spring D₁ as it is being formed thereby forming
a taper spiral or spring which gradually increases in diameter and then becomes
gradually smaller again at regular intervals to be afterwards cut up into taper
springs or spirals or springs or spirals which are smaller at their ends than at the
middle. This may be accomplished, as shewn in Fig. 9, by making the arm 12 to
turn in bearings M on the base B and providing a lever N fixed on the arm this
lever N being caused to move backwards and forwards by the connecting rod O
which at its other end fits on the adjustable crank pin p carried by the crank disc q
which by means of gearing is caused to slowly revolve so as to gradually move the
roller J nearer to or farther from the axis of the coil D' as it is being formed and
thus make the taper spiral or spring as stated above. The amount of movement.

page_text: of the roller J and the corresponding diameters are regulated by moving the crank
pin p by the screw p¹ nearer to or farther from the centre of the crank disc q or by
fixing the other end of the connecting rod O and the lever N nearer to or farther
from the centre of the arm 12 as will be readily understood.
When the tool or appliance is required for use in making wire spirals or springs
in which the wire coils are close or almost close together then the pitch roller J
and the means for carrying the same are dispensed with and the spiral or spring as
it is formed will then rise up vertically out of the recess from the flange h. In
this case the block holder I has to be raised until the top of the flange 2 is almost
on a level with the small hole c¹ in the nose A through which the wire issues.
The arrangements shewn upon my drawings are what I consider to be the best
for carrying my invention into effect but it is to be understood that my invention
is not limited to the precise details shewn as it will be evident that these may be
varied somewhat and modified without departing from the nature of my invention.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. In a tool or appliance for making wire spirals or springs and in combination
with the feed rolls which move the wire forward, the nose piece through which the
wire is forced by the feed rolls and the curved block against which the wire
impinges and by which the wire is bent into a coil as it issues from the nose
piece, substantially as described.
2. In a tool or appliance for making wire spirals or springs and in combination
with the nose piece through which the wire is forced and the curved block against
which the wire impinges and by which the wire is bent into a coil as it issues from
the nose piece, the pitch roller or pin or block adapted to bend the wire spiral or
spring into a coarser pitch as it issues from the curved block, substantially as
herein before set forth.
3. In a tool or appliance for making wire spirals or springs and in combination
with the nose piece through which the wire is forced and the curved block against
which the wire impinges and by which the wire is bent into a coil as it issues from
the nose piece, the pitch roller or pin or block adapted to bend the wire spiral or
spring into a coarser pitch as it issues from the curved block, and means for
automatically moving the pitch roller or pin or block nearer to or farther from the
axis of the spiral or spring so as to vary the diameter of the spiral or spring as it
is being formed, substantially as hereinbefore set forth.
4. The herein described improved tool or appliance for making wire spirals
or springs the parts being constructed and arranged and combined together
substantially as hereinbefore described and illustrated by the accompanying
drawing.
Dated this 3rd day of March 1894.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.