Improved Apparatus to be employed in the Coiling of Wires for Mattresses and other analogous purposes.
Year: 1893

page_text: Date of Application, 26th Jan., 1893
Complete Specification Left, 26th Oct., 1893-Accepted, 26th Jan., 1894
PROVISIONAL SPECIFICATION.
Improved Apparatus to be employed in the Coiling of Wires for
Mattresses and other analogous purposes.
I, EDWARD SAMUEL BOND, of "The Crown Machine Works," Lower Hurst
Street East Birmingham in the County of Warwick, Mechanical Engineer, do
hereby declare the nature of my said invention to be as follows:-
My invention for improved apparatus to be employed in the coiling of wires for
mattresses and other analogous purposes, is an improvement upon and further
development of a machine for which Letters Patent have been granted to me
No. 16676 A.D. 1891.
The aim and object of my present invention being the construction of apparatus
or mechanism for automatically stopping, disengaging, and readjusting as required
for a definite or defined measurement for the purposes above described causing a
diminution in labour and considerable saving in material.
The mechanism of grooved rolls geared together with a screw thread on the axis
of the lower roll with the travelling carriage, clutches and double lever are all
substantially the same as in my Specification above referred.
The improvements in this my present invention are two in number. The object
of the first is to do away with the weight and cord hitherto used in machines of this
class. Instead of using a drum on which a cord attached to a weight is wound I-
substitute a spring preferably spiral, like a lock spring, so that the revolution of
the spur wheel driven by the pinion on the measuring screw shaft coils the spring,
which on being released revolves the screw in the contrary direction and brings the
carriage back ready for starting, measuring again. The object of the second part
of my invention is to ensure the accurate stoppage of the feeding part of the
machine when the required length of wire has been fed in, and to prevent over-
running whereby waste of wire occurs.
To effect this object I provide a weigh or starting shaft at right angles to the
axes of the grooved rollers. On this weigh shaft is mounted at one end an arm
projecting downwards which if free would be drawn downward by a sufficient
powerful spring thereby causing angular motion of the weigh shaft. The motion
of this arm is however prevented during the time that a coil of wire is being
formed by the machine, as the end of the arm then rests on a fixed upright pillar.
When the travelling carriage has advanced a sufficient distance (according to the
length of coil being made) the adjustable projection on the carriage pushes the arm
off the upright pillar. The spring below the arm then acts and draws down the
arm, and the weigh shaft receives. a certain amount of angular motion. This
produces two effects, firstly, a projection on the weigh shaft engaging with the
clutch lever throws both clutches out of gear, and, secondly, and simultaneously
another projection acts by means of a spring latch arrangement on a sliding rod the
end of which projects through the headstock and engages with a corresponding
projection on the spur wheel at the back end of the lower grooved roll shaft, that
is the shaft on which the screw thread is revolved. This action ensures the
accurate stoppage of the feed mechanism, and the carriage or revolving screw
withdraws automatically the sliding rod thus releasing the machine from its locked
position.
When another coil is required to be made the clutch lever has to be engaged by
hand and brought into the required position for putting the clutches in gear by
means of a handle on the weigh shaft, and by this means the machine is now driven
by power.

page_text: In order to adjust the spur wheel at the back end of the shaft I form a cone on
the boss of the wheel which fits a corresponding conical boring on the grooved
roller shaft, this is securely held by means of an ordinary nut and washer. The
object of this adjustment is to enable the clutches to engage with each other with
exactitude, this is necessary on account of the different positions which the clutches
would assume when various measurements are required.
It is sometimes necessary to run the traversing carriage back without waiting
until the ordinary action of the machine causes it to do so. I therefore provide a
striking shaft parallel to the weigh shaft and having a projecting arm, which on a
handle at the end of the striking shaft being pressed throws the weigh shaft arm
off the upright pillar thereby enabling the spring below to act, disengaging the
clutches, throwing the machine out of gear.
Dated 26th January 1893.
THOS. KENDRICK,
Agent.
COMPLETE SPECIFICATION.
Improved Apparatus to be employed in the Coiling of Wires for
Mattresses and other analogous purposes.
•
I, EDWARD SAMUEL BOND, of "The Crown Machine Works," Lower Hurst
Street, East Birmingham, in the County of Warwick, Mechanical Engineer, do
hereby declare the nature of my said 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 has for its object such improvements in the apparatus or construction
of mechanism as I may require for any defined measurement, in the length of wires,
and employed in the coiling of same, for mattresses and such like purposes, and for
automatically stopping, disengaging, and readjusting the same, in a more efficacious
manner than hitherto, being an improvement upon a Patent granted to me
No. 16676º¹.
And in order that this my said invention may be the more readily understood I
will now proceed to describe it with the aid of the accompanying 3 sheets of
drawings.
•
The same letters of reference denote the same parts in every figure in which they
occur.
Figure 1 (Sheet 1) is a front elevation of an automatic stop motion constructed
according to my invention, the said motion forming part of a machine for making
coils of determined lengths of wire.
Figure 2 (Sheet 1) is a longitudinal section through the same.
Figure 3 (Sheet 2) is a cross section through the same.
Figure 4 (Sheet 2) is an elevation of the same at the end at which the feed
rollers are situated.
Figure 5 (Sheet 3) is a back elevation of the automatic stop motion constructed
according to my invention.
Figure 6 (Sheet 3) is an end view of same shewing the feed rollers and the parts
adjacent thereto.
A and A¹ are grooved rolls for feeding the wire into the coiling tool. The
coiling tool itself Z is not shewn in detail in the drawings as it forms no part of my
invention. The grooved roll A is mounted above the grooved roll A¹ which is
secured to a shaft which revolves in bearings formed in the housing B.
On the shaft. carrying the lower roll A is formed a screw thread 6 called a
measuring screw upon which the carriage E travels as the shaft revolves the
carriage E being formed internally as a nut or female screw for the purpose.
The shaft a is geared with the driving shaft as by spur wheels V V'..

page_text: On the driving snait a revolves the loose sleeve a one end of which is formed as
a clutch f'.
The driving pulley F is mounted on the driving shaft as so as to give motion to
the sleeve a¹.
Between the two shafts a and a³ the lever H is pivoted, one end of which is
arranged to operate the clutch between the driving shaft a and the loose
sleeve a. The other end of the lever simultaneously operates a clutch f¹ between
the measuring screw which works the carriage E and the lower shaft a². Upon
the measuring screw is secured a pinion K which gears with a spur wheel M of
considerably larger size. This spur wheel M is mounted on a stud m¹ secured to
the housing B.
When the
In my former invention described in Specification 16676" a drum was conuected
to the spur wheel M and upon that drum a cord supporting a weight was wound.
The first part of my present invention is an improvement on the weight with cord
and drum, and in carrying it into effect I provide a coiled spring, similar to an
ordinary clock spring. This spring is enclosed in the fixed case NÑ. One end of
the spring is attached to the case and the other to the spur wheel M. The spring
itself is not shewn on the drawing, as it is of so well known a nature.
machine is in operation for coiling the length of wire, the spring in the case N is
wound up by the revolution of the spur wheel M caused by the pinion K until the*
travelling carriage E. disconnects the clutches f'f' by a method to be presently
described. The disconnection of the clutches stops the feeding portion of the
machine, although the band pulley F continues to revolve. The spring in the
case N which by this time has a considerable amount of energy stored up in it by
being coiled up while the feeding portion of the machine was in motion, is now free
to act upon the temporarily disconnected measuring screw through the spur
wheel M and pinion K. The force of the spring revolves the screw quickly in
the reverse direction to that in which it moved while the feeding portion of the
machine was in motion. This motion of the measuring screw brings back
the travelling carriage E to its first position ready for the feeding part of the
machine to start again.
The second part of my invention which is to insure the accurate stoppage of the
feeding part of the machine, is carried into effect as follows.
I provide a weigh shaft P which I call the starting shaft, this is at right angles
to the shafts a² and a³. On this shaft. P I mount at one end an arm p' with a
hinged piece p projecting downwards. This arm will when free be drawn down-
wards by means of a sufficiently powerful spring R thereby causing angular motion
that is partial rotation of the weigh shaft P. The lower end of the piece p² on
the end of the arm pl rests on a fixed upright pillar S while the feeding and coiling
part of the machine is at work. When however the travelling carriage E has, by
the revolutions of the measuring screw ' advanced a sufficient distance in the
direction of the arrow the adjustable projection e' on the carriage E pushes the
piece p off the pillar S. The spring R then draws down the arm p by means of
the short piece p³ and the arm pl being fixed on the weigh shaft P causes an
angular motion or partial rotation of the shaft P. On the shaft is a projecting
piece p³ which engages with a slot in the upper part of the lever H which operates
the clutches flf throwing them both out of gear simultaneously. At the back
end of the weigh shaft P (see Figures 1, 2, 3, and 5) is a lever p¹ to which is
hinged a bar p projecting downwards. An inclined latch pieco on this bar p
engages with a corresponding projection t' on a sliding rod T which moves in
bearings in the housing B. When the spring R acts and disengages the
clutches ff as before described, the latch piece pe acting on the projection t¹
forces the sliding rod T outward in the direction of the arrow (see Figure 5) 80
that its end t engages with a corresponding projection which is formed on or
secured to the spur wheel V' thereby preventing the further rotation of the spur
wheel V V₁ the shaft a' a' and feed rollers A A'. This action ensures the
accurate stoppage of the feed mechanism. The sliding rod T is brought back

page_text: automatically to its original position by the tail piece e' on the travelling carriage E
engaging with a projecting piece t³ on the sliding rod T (see Figure 5).
To cause the clutches to engage again with each other so as to start the feeding
mechanism to form another coil of wire, I provide a handle on the shaft h¹
carrying the clutch lever H. By raising this handle the clutches f¹ fare put
into gear and simultaneously a cam ³ engages with a projecting piece p³ on the
picce which it lifts, against the resistance of the spring R, and replaces it on the
top of the pillar S.
p' is a fixed guide for the bar p³.
In order to adjust the spur wheel V' to its required position on the shaft a³, I
bore the boss or hub of the wheel conical or taper as shewn at vª (Figure 2) and
turn the shaft where the wheel is fixed conical also, securing the wheel to the shaft
by friction only, the necessary amount of which is obtained by screwing a nut.
on to the end of the shaft a³.
Should it be required to run the travelling carriage back to its starting position
without waiting until the ordinary action of the machine causes it to do so,
I use
the shaft as a striking shaft, then on depressing the handle *, the cam h³ on the
other end of the shaft engages with a pin p8 on the projecting piece p² and pushes
it off the pillar S, thereby enabling the spring R to act and disengaging the
clutches, thereby stopping the feeding mechanism as before described.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is :-
1st. In improved apparatus to be employed in the coiling of wires, for mattresses,
and other analogous purposes, the combination and arrangement of the "spring'
preferably coiled in "N" with parts operating substantially for the purposes herein-
before described and illustrated by the accompanying drawings.
2nd. The combination and arrangement of, the weigh or starting shaft "P"
provided with the arm p' with parts operating substantially for the purposes herein-
before described and illustrated by the accompanying drawings.
3rd. The combination and arrangement of, "the cone V on spur wheel V'"
with parts operating substantially for the purposes, herein before described and
illustrated by the accompanying drawings.
4th. The combination and arrangement of, the "striking shaft h₁" with parts
operating, substantially for the purposes hereinbefore described and illustrated by
the accompanying drawings.
5th. The general construction, arrangement, and combination, of the several and
respective parts together forming my invention, substantially, as hereinbefore
described in the foregoing Specification and illustrated by the accompanying sheets
of drawings.
Dated 2OLD CLODer 1833.
THOS. KENDRICK,
Victoria Chambers, Martineau Street, Birmingham,
Agent for said Applicant.