IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE OF COILED SPRINGS PACKED WITH WOOL OR OTHER FIBROUS MATERIALS
Year: 1866

page_text: LETTERS PATENT to James William Evans, of 38, Norfolk Street, Strand,
in the County of Middlesex, for the Invention of "IMPROVEMENTS IN
MACHINERY FOR THE MANUFACTURE OF COILED SPRINGS PACKED WITH WOOL
OR OTHER FIBROUS MATERIALS."
Sealed the 20th November 1866, and dated the 25th May 1866.
PROVISIONAL SPECIFICATION left by the said James William Evans
at the Office of the Commissioners of Patents, with his Petition, on the
25th May 1866.
I, JAMES WILLIAM EVANS, of 38, Norfolk Street, Strand, in the County
of Middlesex, do hereby declare the nature of the said Invention for "Ix-
PROVEMENTS IN MACHINERY FOR THE MANUFACTURE OF COILED SPRINGS PACKED
WITH WOOL OR OTHER FIBROUS MATERIALS," to be as follows:-
This Invention has for its object the arrangement and construction of
machinery suitable for the manufacture of coiled springs packed with wool or
other fibrous materials, for which a Patent was granted to Perry Green
Gardiner, dated December 1st, 1863, No. 3007, for "An Improvement in
Railroad Car Springs," and my improvements relate, first, to the construction
of machinery suitable for coiling steel wire to form spiral or helical springs of
this character, and, secondly, to the construction of machinery suitable for
packing or forcing the wool or other fibrous materials into such coiled springs
to increase the resistance they would otherwise be capable of exerting.

page_text: And in order that my Invention may be clearly understood I will proceed
to describe the accompanying Drawings.
Figure 1, Sheet 1, shows a plan; Figure 2, a side view; and Figures 3
and 4 end views of a machine suitably arranged for coiling steel wire in
accordance with the first part of my Invention.
a, a, is the bed plate upon which standards b, b, are bolted, forming
bearings for the driving shaft c, and mandril rod d. The pulley e is loose
on the shaft c, and the clutch f is caused to revolve with the shaft c by means
of feathers g, g, on which it is capable of being moved freely to and fro
lengthways by the lever h, supported and moving on the fulcrum i. By this
arrangement the driving pulley e can be readily connected with or discon-
nected from the hollow shaft c, in which the mandril rod d is moved to and
fro endways as required by means of the lever k. The mandril d' on which
the steel wire is coiled to form the spring is fixed to the end of the sliding
rod d, the coiling of the wire upon the mandril d' being governed by the "pitch"
of the thread or hollow coil formed on the roller 7, which also holds the coil of
wire in position until the mandril is withdrawn therefrom, by which act the
coiled spring is released. Rollers of different length and pitch are employed for
producing coiled springs of varying dimensions and strength. The mandril d
and roller are geared together by pinions m, m, to cause the roller / to
rotate with the mandril; o is a lever actuated by a grooved cam o' and lever
handle as shown, the end of the lever o being thus caused to press and hold
the end of the wire upon the mandril during the process of coiling; p is a
hub or collar fixed on the driving shaft c, having spokes or lever handles p' for
the workman to stop the rotation of the mandril shaft d at the point required.
In the ends of the journals of the pinions m, m, a mortice or socket is formed
to receive the ends of the roller and mandril d', being suitably formed to
engage in and revolve therewith. The standard x is secured to the bed
plate a by sliding in a dovetail, and is fixed in position by a bolt a¹ so as to
adjust it for making any required length of coil, the standard x also carries
the journal boxes for the journals of the pinions m, m; n is a loose friction
roller to guide the wire in a horizontal position whilst being coiled; 9 is a
standard to carry the bearing for the shaft d and journal box of the
roller l.
Figure 5 (Sheet 2) is a plan, Figure 6 a side elevation, and Figure 7 is an
end view of a machine arranged according to the second part of my improve-
ments for forcing or packing wool into the springs after being coiled as
previously described.
a, a, are cross heads bolted together as shown, to support and carry the

page_text: screw nut d, which is caused to revolve in either direction as required by
means of the driving pulleys c, c, formed with clutches to engage with the
clutch e, which slides freely upon a feather fixed on the nut d. By moving
the hand leverf to the right or left the clutch will be caused to engage with
one of the driving pulleys c, and thus give motion to the nut d which acts on
the screw thread formed on the double-en-led ram 9 to cause it to travel
outwards in either direction. The screw shaft g is prevented from turning by
the cross heads k, k, which slide to and fro on the guide rods 1, l. In each
end of the screw shaft g a ram or plunger g' is fixed which passes into the
tube m containing the wool or other fibrous material to be forced or packed
into the coiled spring held in position to receive it in the holder o. The
holder o is formed with an internal screw thread (as shown in section
at o*, Figure 6), which enters and fills up the spaces between the coils
of the spring to prevent the wool from being forced between the coils;
i, i, are levers mounted upon the cross heads a, a, and connected by pin
joints to the band lever f, and when either of the cross heads k arrives at the
end of its motion towards the centre a projection thereon acts upon its lever i
and thus disengages the clutch e from the clutch on the driving pulley c with
which it was connected so as to stop the rotation of the nut d and movement
of the screw 9 until again set in motion in the opposite direction. The
tension or guide rods are formed with scrow threads and lock nuts at their
outer ends, by which the position of the supports b, b, aud holders o, o, can be
adjusted to adapt the machine to various lengths of coiled springs to be
packed thereby; p, p, are transverse supports for the wool tubes or
holders m.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James William Evans in the Great Seal Patent Office on
the 23rd November 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
WILLIAM EVANS, of 88, Norfolk Street, Strand, in the County of Middlesex,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fifth day of May, in the year of our Lord
One thousand eight hundred and sixty-six, in the twenty-ninth year of Her
reign, did, for Herself, Der heirs and successors, give and grant unto me,
the said James William Evans, Her special licence that 1, the said James

page_text: William Evans, my executors, administrators, and assigns, or such others as
I, the said James William Evans, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and at all
times thereafter during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for "IM-
PROVEMENTS IN MACHINERY FOR THE MANUFACTURE OF COILED SPRINGS PACKED WITH
WOOL OR OTHER FIBROUS MATERIALS," upon the condition (amongst others)
that I, the said James William Evans, my executors or administrators, by
an instrument in writing under my, or their, or one of their hands and seals,
should particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same to
be filed in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.!
NOW KNOW YE, that I, the said James William Evans, do hereby
declare the nature of the said Invention, and in what manner the same is to bo
performed, to be particularly described and ascertained in and by the following
statement, reference being had to the Drawing hereunto annexed, and to the
letters and figures marked thereon (that is to say):-
This Invention has for its object the arrangement and construction of
machinery suitable for the manufacture of coiled springs packed with wool
or other fibrous material, for which a Patent was granted to Perry Green
Gardiner, dated December 1st, 1863, No. 3007, for "An Improvement in
Railroad Car Springs," and my improvements relate, first, to the construction
of machinery suitable for coiling steel wire to form spiral or helical springs of
this character, and, secondly, to the construction of machinery suitable for
packing or forcing the wool or other fibrous materials into the centre of such
coiled springs to increase the resistance they would otherwise be capable of
excrting.
And in order that my Invention may be clearly understood I will proceed
to describe the accompanying Drawings.
Figure 1 (Sheet 1) shows a plan; Figure 2, a side view, and Figures 3.
and 4 (Sheet 2), end views of a machine suitably arranged for coiling steel
wire in accordance with the first part of my Invention.
a, a, is the bed plate, upon which standards b, b, are bolted, forming
bearings for the driving shaft c and mandril rod d. The pulley e is loose on
the shaft c and the clutch fis caused to revolve with the shaft c by means
of feathers g, 9, on which it is capable of being moved freely to-and-fro
lengthways by the lever supported and moving on the fulcrum i. By this

page_text: arrangement the driving pulleye can be readily connected with or disconnected
from the hollow shaft c, in which the mandril rod d is moved to-and-fro endways
as required by means of the lever k. The mandril d', on which the steel wire.
is coiled to form the spring is fixed to the end of the sliding rod d, the coiling.
of the wire upon the mandril d being governed by the "pitch" of the thread
or hollow coil formed on the roller 2, which also holds the coil of wire in.
position until the mandril is withdrawn therefrom, by which act the coiled.
spring is released. Rollers of different length and pitch are employed for pro-
ducing coiled springs of varying dimensions and strength. The mandril & and:
roller are geared together by pinions m, m, to cause the roller / to rotate with
the mandril. o is a lever actuated by a grooved cam o' and lever handle as shown;
the end of the lever o being thus caused to press and hold the end of the wire:
upon the mandril during the process of coiling. p is a hub or collar fixed on
the driving shaft c having spokes or lever handles p₁ for the workman to stop.
the rotation of the mandril shaft d at the point required. In the ends of the
journals of the pinions m, m, a mortice or socket is formed to receive tho
ends of the roller and mandril d', being suitably formed to engage in and
revolve therewith. The standard x is secured to the bed plate a by sliding
in a dovetail, and is fixed in position by a bolt a³, so as to adjust it for
making any required length of coil; the standard also carries the journal
boxes for the journals of the pinions m, m, the axes of which are suitably
formed for receiving and engaging with the ends of roller and mandril d'.
n is a loose friction roller to guide the wire in a horizontal position whilst
being coiled. 9 is a standard to carry the bearing for the shaft d. and journal
box of the roller l.
Figure 5 (Sheet 3) is a plan; Figure 6, a side elevation, and Figure 7 is
an end view of a machine arranged according to the second part of my
improvements for forcing or packing wool into the springs after being coiled
to form a core thereto, as previously described.
a, a, are cross heads bolted together, as shown, to support and carry the
screw nut d, which is caused to revolve in either direction, as required, by
means of the driving pullies c, c, formed with clutches 6 to engage with the
clutch e, which slides freely upon a feather fixed on the nut d. By moving
the hand leverf to the right or left the clutch e will be caused to engage with
one of the driving pullies c, and thus gives motion to the nut d which acts on'
the screw thread formed on the double ended ram 9 to cause it to travel out-
wards in either direction. The screw shaft g is prevented from turning by
the cross heads k, k, which slide to and fro on the guide rods 1, l. In each
end of the screw shaft g a ram or plunger g¹ is fixed, which passes into the

page_text: tube m containing the wool or other fibrous material to be forced or packed
into the coiled spring held in position to receive it in the holder o. The
holder o is formed in two parts hinged or jointed together so as to open, as
shown, with an internal screw thread (as shown in section at o*, Figure 6)
which enters and fills up the spaces between the coils of the spring to prevent
the wool from being forced between the coils; i, i, are levers mounted upon
the cross heads a, a, and connected by links and pin joints to the band
lever f, and when either of the cross heads k arrives at the end of its motion
towards the centro a projection thereon acts upon its lever i, and thus dis-
engages the clutch e from the clutch on the driving pulley c with which it
was connected, so as to stop the rotation of the nut d and movement of the
screw g until again set in motion in the opposite direction. The tension or
guide rods are formed with screw threads and lock nuts at their outer ends,
by which the position of the supports o', o', and holders o, o, can be adjusted
to adapt the machine to various lengths of coiled springs to be packed thereby ;
p, p, are transverse supports for the wool tubes or holders m.
Having thus described the nature of my Invention, and the manner in
which the same is carried into practice, I would bave it understood that I do not
confine myself to the exact details herein described; but what I claim is, first,
the arrangement of machinery for the manufacture of coiled springs, as herein
described and shown in Sheets 1 and 2 of the Drawings hereunto annexed.
Secondly, I claim the arrangement of machinery for packing coiled springs
with wool or other fibrous materials, as herein described and shown in Sheet 3
of the Drawings hereunto annexed.
In witness whereof, I, the said James William Evans, have hereunto
set my hand and seal, this Fifteenth day of November, in the year
of our Lord One thousand eight hundred and sixty-six.
Witness,
J. G. TONGUE,
Patent Agent,
34, Southampton Buildings,
Chancery Lane, W.C.
JAMES W. EVANS. (L.S.)