Improvements in Furniture Spring Making Machines.
Year: 1889

page_text: Date of Application, 7th Jan., 1889
Complete Specification Left, 7th Oct., 1889-Accepted, 7th Jan., 1890
PROVISIONAL SPECIFICATION.
Improvements in Furniture Spring Making Machines.
I GOTTFRIED VON SÜSSKIND of 71 Mühleck, St. Gallen, Switzerland do hereby
declare the nature of this invention to be as follows
My invention rolates to improvements in automatic furniture spring making
machines in which the springs are coiled and automatically cut off.
In order to make my invention clear I refer to the accompanying drawing in which
similar letters denote similar parts throughout the different figures.
Fig. 1 shows a vertical section of my improved machine.
Fig. 2 shows a horizontal section through the line a ẞ fig. 1.
Fig. 3 is a front view of the machine.
Figs. 4 to 12 are detail views of the machine.
The construction of the machine is as follows:
The driving shaft a is journalled in the stand A; to the shaft a is fitted the
fly wheel B and friction coupling b. The coupling is coupled by pulling the
handle 63 which is connected to the coupling by the rod 62 and lever 61, there is a
brake fitted to the lower end of the lever which, when the coupling b is put out
of gear presses on the rim of the fly-wheel B and stops the machine.
The shaft a is fitted at its front end to the shaft a', which carries the cutting off
mechanism, by a universal joint. The upper shaft a² is likewise connected to the
shaft a by a universal joint. The shaft as carries the roller c which together with
the roller c feeds the wire to the machine.
The shafts a and a² are geared together by the cog-wheels a a³ and a and both
revolve in the same direction and with the same speed; it is necessary that they
should revolve in the same direction in order that the finished spring shall be cut off
while moving.
The shaft a' can be raised or lowered in the strap e by means of the screw g, for
which purpose it is fitted in the sliding journals ad in order that the cutting off
apparatus may be adjusted to suit any diameter of spring.
The upper shaft a³ is also adjustable by the screw g¹ and spring g² in order that wire
of different thicknesses may be used.
The under roller c' is driven from the shaft a³ by the cog-wheels c² and c³.
There is a small strap e fitted inside the larger strap e (fig. 1) to which is fastened
the bearing d' at the bottom and at the top a screw, by which means the roller c can
be raised in order that the wire may be brought between the feed rollers.
The form and size of the springs are obtained by the following mechanism.
On the shaft a is fitted a worm a' which gears into teeth on the shaft j and revolves
the same, and by means of the cog wheels j₁ and j and adjustable wheel on the
segment (figs. 2 and 4) the shaft is turned to the end of this shaft is fitted the
ring k on the round knob k¹ and the washer k³, the ring k is clamped in any desired
position by means of the nut kª..
According to the position of the ring & the position of the lever is varied; this
lever turns on the pivot 12 and is fitted with the guide roller and at the other end
with a roller 1 (fig. 5).
When the ring k is placed at right angles to the axis of the shaft j³ the lever I and
the roller is not influenced but remain in the same position and the spring will be
made parallel the whole length.
The more the ring k is placed from a right angle the more is the guide roll "
moved and the spring is made of a larger diameter at the ends than in the centre.
The springs should have a larger pitch in the centre than at the ends; this is
achieved by the lever being pivoted excentrically at 12.

page_text: In consequence of the pivot being capable of being turned by a hand lever the
wire can be bent more or less to the right as shown by the dotted lines in fig. 5,
o being the wire; when the pivot is moved outwards, the spring will have a larger
diameter over all and vice versa.
The pitch of the spring is regulated by the lever 15 on which the pivot 12 is fastened
and which may be adjusted by the screw 1.
It will be seen from this, that the springs may be made of any size and form
according to the position of the ring and pivot 12.
The springs are cut off as follows:
The cutting off mechanism is fitted to the front end of the shaft a¹ and consists of
the inner clutches and 2 and the outer clutches and f (figs. S and 10); both
have straight stops as to be seen in fig. 10 and are movable on the shaft a', the
cutters and are brought together and the wire cut (fig. 8); f' is a ring for
moving the back clutch and is held in place by the ring f which has a catch f10; the
two back clutches and fand the ring f form as it were one piece which is fitted
loose on the shaft a¹. The clutch f¹ is fastened to the shaft a' by the key f the end
of which is formed into a spring, the clutch fl is loose on the shaft. The whole
mechanism with the exception of only makes one revolution during the making of
a spring.
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When a spring is finished the cam 7 comes against the nose of the lever m (fig. 4)
and the lever and rod m' are shoved forward and by means of the ring f' the back
clutch is also moved forward and is made to revolve by coming into contact with
the revolving clutch ; thus the back clutches with 3 are set in motion and the
stop is pressed against the catch a which is fitted to the bearing d (fig. 8) and the
back clutch is brought further forward and the cutter f brought against the cutter'
and the wire which lies between is cut off. The back clutches are drawn back by the
spring m³ which is fastened to the lower end of the lever m, as soon as the cam jo has
passed the nose on the lever m.
The cutters are turned into their proper position again by means of the spring key f';
the spring key carries the back clutch with it till the stop 10 rests against the catch n ;
the arm prevents the ring ♬ turning and the pin m² guides the arms of the clutches
into each other.
A. KUHNT & R. DEISSLER,
38, Alexander Strasse, Berlin C., Germany, Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Furniture Spring Making Machines.
I, GOTTFRIED VON SÜSSKIND of 71, Mübleck, St. Gallen, a citizan of the federation
of Switzerland, Gentleman 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 certain new and useful improvements in wire spring
machines, of which the following is a clear specification.
In order to make my invention more clear, I refer to the drawings sent in with
provisional specification, in which similar letters denote similar parts throughout the
several figures.
Fig. 1 is a vertical section of my machine.
Fig. 2 shows a horizontal section.
Fig. 3 is a front view of the machine frame but with the shafts a' and a cut away
for the sake of clearness the section line running through the universal joints of the
same in fig. 1.
Fig. 4 is a part side elevation of the machine with the cog wheels removed.
Fig: 5 shows a top view partly in section of the guiding mechanism for the wire.
Fig. 6 shows a side view of the same partly in section:

page_text: Fig. 7 shows an end view partly in section of the cutting off mechanism and
guiding rollers.
Fig. 8 shows a detail view of the cutting off mechanism in section along middle
line.
Fig. 9 is a sectional plan of the same.
Fig. 10 is a cross section of fig. 8.
Figs. 11 and 12 show stop n and ring f having projection 10, respectively.
The construction of the machine is as follows:
fitted the
pulling the
there is a
is put out
The driving shaft a is journalled in the stand A; to the shaft a is
fly wheel B and friction coupling b. The coupling b is coupled by
handle 63 which is connected to the. coupling by the rod and lever
brake fitted to the lower end of the lever b¹ which, when the coupling
of gear presses on the rim of the fly wheel B and stops the machine.
The shaft a is fitted at its front end to the shaft a which carries the cutting off
mechanism, by a universal joint. The upper shaft a³ is likewise connected to the
shaft a3 by a universal joint.
The shaft a carries the roller c which together with the roller c¹ feeds the wire to
the machine.
The shafts a and a² are geared together by the cog wheels at a and a and both
revolve in the same direction and with the same speed; it is necessary that they
should revolve in the same direction in order that the finished spring shall be cut off
while moving.
The shaft a¹ can be raised or lowered in the strap e by means of the screw g, for
which purpose it is fitted in the sliding journals d in order that the cutting off
apparatus may be adjusted to suit any diameter of spring.
The upper shaft a³ is also adjustable by the screw gl and spring y², in order that
wire of different thickness may be used.
The under roller c' is driven from the shaft a³ by the cog wheels c² and c³.
There is a small strap e¹ fitted inside the larger strap e (fig. 1), to which is fastened
the bearing at the bottom and at the top a screw, by which means the roller c can
Le raised in order that the wire may be brought between the feed rollers.
.
The form and size of the springs are obtained by the following mechanism:
on the
On the shaft a is fitted a worm a' which gears into teeth on the shaft j and revolves
the same, and by means of the cog-wheels and and adjustable wheel
segment (figs. 2 and 4) the shaft is turned.
and the washer /³,
The reason for placing gearing wheel on the adjustable segment is to enable
the taking out and changing of wheels jj, for instance, if a larger wheel be sub-
stituted for and a smaller wheel for 1, a shorter spring will be made, since shaft j³
will revolve more quickly and consequently the projection ; will come sooner under
projection m thus setting the cutting off mechanism earlier in gear.
To the end of this shaft j³ is fitted the ring k on the ball joint
the ring is clamped in any desired position by means of the nut ².
According to the position of the ring.k the position of the lever is varied; this
lever turns on the pivot and is fitted with the guide roller and at the other end
with a roller 3 (fig. 5). The pivot 2 is excentrically fixed to a disc which has,
rigidly fixed to it, a hand lever (fig. 5) and which is in its turn pivoted to the
lever is pivoted to the machine frame (fig..2) and may be held in any desired
position by means of the set screw (fig. 1). The pin is mounted on lever 15
in order that, when 12 stands at any point in the circle it describes, the roller 13
may be brought against the ring by adjusting lever 1, otherwise if pivot 12 is standing
nearly in its extreme left position (fig. 5) the roller 13 would stand away from ring k
entirely. When lever is placed in the desired position, it is clamped by means
of screw (fig. 1). By this means any desired pitch may be given to the wire,
a slight variation in the pitch of the spring will necessarily be caused by the
ring, but the object of the hand lever, which may be controlled by a workman'
during the winding of the spring, is either to give the spring a still greater pitch in

page_text: the middle, or by moving hand lever in the opposite direction, to binder the variation
necessarily caused by ring k.
When the ring & is placed at right angles to the axis of the shaft the lever and the
roller are not influenced but they remain in the same position and the spring will
be made parallel the whole length.
The more the ring is placed from a right angle, the more is the guide roller /
moved and the spring is made of a larger diameter at the ends than in the centre.
When the pivot 2 is moved outwards, the spring will have a larger diameter over
all and vice versa.
It will be seen from this that the springs may be made of any size and form
according to the position of the ring k and pivot 12.
The springs are cut off as follows: The cutting off mechanism is fitted to the
front end of the shaft a¹ and consists of the inner clutches f¹ and f" and the outer
clutches or guides f³ and f (figs. 8, 9, 10, 11 and 12); both have straight stops
as to be seen in fig. 10.
The cutters and fe are brought together and the wire cut, (fig. 8) f7 is a ring
for moving the back clutch. The ring f holds the ring in its place. The two
back clutches and f* form one piece which is fitted loose on the shaft a'. The
clutch is fastened to the shaft a by the key the end of which is formed into
a spring, the clutch or guide f³ is loose on the shaft. The whole mechanism
with the exception of f₁ only makes one revolution during the cutting off of a
spring.
When a spring is finished the cam j comes against the nose of the lever m
(fig. 4) and the lever and rod m² are shoved forwards and by means of the ring
the back clutch is also moved forward and is made to revolve by coming into
contact with the revolving clutch f¹ thus the back clutches with f³ are set in motion.
By being set in motion the back part f of the clutch with ring f', although it
has been pushed forward, is not pushed so far forward that the nose 10 may pass
by the projection n on the bearing of the shaft. On the contrary, immediately
when the back part begins to revolve, the nose f10 is driven against the projection n
thus pressing said back part still further forwards and shoving the knives fo
together, whereby the wire is cut off. As soon as the wire is cut off the cam
passes from under the projection on lever m and the latter falls back under influence
of spring m³, pulling the coupling out of gear. In order however that the coupling
may be brought into position with the knives upwards, so that the next spring may
be cut off; at the next revolution of shaft at which revolves continually, the spring end
of the key snaps into a groove in the back part of coupling ff and turns it
so far round until the nose 10 strikes against projection and holds thereby the
back part of the coupling stationary until the next spring is wound and cam je again
comes under projection m.
The object of the spring and spindle m² is that, on the levers mm² being pushed
forwards by cam j the whole coupling shall not be forced forwards, in which case,
if the clutches do not stand exactly in the right position the same would be liable
to be broken or become notched, but the back part of the coupling will be able to
spring back in the long slit in lever m¹ and wait until the revolving part of same
comes into the proper position, when it will immediately spring in gear under
influence of spring and spindle m².
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:
In wire spring machines:
1.) The rotary shaft a³ having the roll c mounted thereon, the lever I having at one
end the roll and at the other the roll 13, the disc k adjustably mounted on and at
an angle to the shaft 3 and intermediate connections between the shafts j³ and a³,
substantially as specified.

page_text: 2.) The combination of the cutting off arrangement for the springs attached to
shaft a and consisting of the inner clutches ff, outer clutches f3f, combined
spring and key, cutters f f, guiding ring f', back clutch ff, having nose 10
on ring with bearing d, having projection n, in the manner substantially as
described.
3.) The combination of the lever pivoted at 13, the pivot 12 being excentrically
moveable on the adjustable lever 1, with the rollers and 13, the latter running on
the disc which is adjustable on the shaft is by means of ball joint k¹, in the
manner substantially as described.
4.) The combination of the shafts a a² connected by universal joints with the shafts a¹
and a respectively the latter running in the adjustable bearings d and d¹, the
bearing & being adjustable in the strap e, bearing d¹ adjustable by strap e, spring g³,
and screw spindle g with hand wheel in the manner substantially as described.
Dated Berlin, this 5th day of October 1889.
GOTTFRIED VON SUSSKIND.
By A. Kuhnt & R. Deissler,
38, Alexander Strasse, Berlin C., Germany, Agents for Applicant.