prove
Year: 1897

page_text: Date of Application, 3rd Apr. 1897-Accepted, 8th May, 1897
Improve
A communication by the Firm of H. FÜLLNER, of No. 169 Herischdorf,
Warmbrunn, Silesia, in the Empire of Germany, Manufacturers.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of The Agency for
Foreign Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street,
Manchester, both in the County of Lancaster, 118, New Street, Birmingham in
the County of Warwick, and 322 High Holborn in the County of Middlesex, Civil
Engineer, 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 :-
The different parts of a paper machine such as the couchers, wet presses, groups
of drying apparatuses, smooth presses and the like are always driven from a shaft
mounted parallel to the longitudinal direction of the machine. As the manufacture
requires that the train of paper in each separate part of the paper machine may
be regulated independently, a separate driving shaft is necessary for each
part, and these shafts, as required by the rollers of the paper machine which
are to be set in motion from them, are mounted parallel to the said rollers. The
driving shafts of the separate parts of the machine are thus directed transversely
to the main driving shaft and the transfer of movement to the driving shafts of
the separate machine parts renders necessary the use of a pair of bevel gearings
for each of these driving shafts.
As however, as already mentioned, it must be possible to regulate the train of
paper within the separate machine parts independently, a separate pair of cone discs
must also be inserted in the above mentioned driving gear for each part of the
machine, so that as a whole an extremely complicated driving gear is produced
which is not alone inconvenient and only attended to with a certain amount of
danger and occupies much room, but in consequence of the many bevel gearings
requires a large amount of power, is very noisy and after being even slightly worn
gives an irregular jerky motion so that often the teeth of the wheels are marked
on the rollers driven, and the evenness of the production of paper is considerably
affected.
In the driving gear which forms the object of the present invention all the above
drawbacks are removed, and an uncommonly steady and even motion of the rollers
of all the machine parts is secured. The driving is effected by a rope gearing
proceeding from one drum parallel to the driving shafts of the different machine
parts with separate ropes for each machine part or with a common circulating or
endless rope for the various parts.
In order to regulate the separate trains of paper in the machine independently
cone belt pulleys may as hitherto be employed, the counter pulleys of which are
mounted directly on the driving shaft of each separate part of the machine, or all
cone belt pulleys may be omitted and rope pulleys adjustable in diameter may be
employed mounted immediately on the driving shafts for the various parts of the
machines.
In the accompanying drawings:
Figures 1 and 2 show respectively in side elevation and plan view a form of
construction of rope driving gear by means of a continuous rope and conical

page_text: Figures 3 and 4 show a modification with rope pulleys adjustable in diameter;
Figure 5 is a section of such an adjustable rope pulley.
In Figure 1 the rope driving gear is further shown in two different arrangements
overhead and subterranean. According to the circumstances of the place one or
other of these forms may be adopted.
The axle c of the driving rope drum b is either mounted on a frame a arranged
in proximity to the paper machine, or in a pit. In driving by means of an endless
rope s, such as assumed in Figure 1, the same rope runs alternately over the rope
pulleys d e f g h i k l m which serve for driving the various parts of the paper
machine, and in each case over a separate groove in the drum b. From the last
groove of the drum the rope is again carried back by means of an obliquely
mounted rope pulley r to the first groove of the drum. On each of the shafts of
the rope pulleys de f g h i k l m there is mounted a conical belt pulley del figl
him from which conical counter pulleys d² e² fƒ³ g² h² ² k³ 12 m² are driven.
These counter pulleys are keyed fast on the driving shafts for the various parts of
the paper machine so that by adjusting the belts the separate trains may be regulated
according to requirements.
A rope driving gear has the advantage of affording an extremely even regular
movement of the various paper trains. Any jerky movement, such as arises
frequently where cogwheels are used, particularly after they have become somewhat
worn, is excluded because the present invention renders it possible to drive from a
shaft parallel to the driving shafts of the separate parts, so that all the bevel wheels
may be omitted. A belt pulley driving gear somewhat analogous to the present
rope driving gear is entirely excluded, first, because of the too great space which
such an arrangement would require, and secondly on account of the impossibility of
the practical use of such long belts as would be necessary for driving the driving
shafts of parts lying at the rear end of the paper machine.
The present rope driving gear has the advantage of an extremely moderate
requirement as to room and an extremely easy regulation of the tension of the
cord. In using a continuous rope it is only necessary for the latter purpose to
make the bearing for the spindle of the transfer pulleys horizontally adjustable
and to connect a tension weight p, Figure 1, with a rope carried over a guide
roller so that the transfer disc acts simultaneously and uninterruptedly as au
automatic tension roller. By increasing or diminishing the weight p, the tension
of the ropes may be suitably regulated. In using separate ropes, tension rollers
acting in the ordinary manner may be employed so that in all cases an absolute
security of driving is always secured, and a thoroughly steady reliable movement
of all the separately driven rollers is obtained.
In the modification shown in Figures 3 & 4 a circulating or endless rope is also
employed which is again driven from a rope drum b and kept automatically in
tension. The conical belt pulleys for regulating the paper train are omitted, and
the rope pulleys d, e, f, g, h, i, k, l, m, belonging to the separate parts are so
arranged that the circle in which the rope s encounters the pulleys increases or
diminishes, and thereby the speed of each separate rope pulley may be increased or
diminished entirely according to requirements.
For this object either the rim of the rope pulley or as shown in Figure 5 the
whole rope pulley is made in two parts, so that by approaching or separating the
two halves n & o, the rope may be forced to drive a greater or smaller radius and
so produce different speeds.
It is thus possible to regulate the course of the separate trains of paper entirely
according to requirements. Further it is evident that in this modification of the
driving arrangement, the rope pulleys d e f g h i k l m may be directly mounted
on the driving shafts of the separate parts of the paper machine so that the whole
driving is extremely simple and only requires a minimum of room. The circulating
rope may of course also, in this modification with expanding rope pulleys, be
replaced by separate ropes and in all cases the whole driving gear may be easily
enclosed by protective lattice work in such a way that only the hand wheels for

page_text: adjusting the belts, Figure 2 running over the conical pulleys, and the movable
halves of the divided rope pulleys, Figure 5, lie outside the protective lattice work
and thus any danger in using the machine is excluded.
It is evident without being specially explained that with the present rope driving
gear in consequence of all bevel, cog or friction wheels being omitted a most
uncommon saving in the consumption of power is effected.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondents, I declare that what I claim is :-
1. A paper machine in which the various parts of the machine (couchers, wet
presses, dry presses, smooth presses and the like) are driven from a rope drum (b)
parallel to the rollers of these parts by means of an automatically strained
circulating rope (s) or separate ropes replacing the same, all bevel gearing or
friction discs being omitted for the purpose of producing an even paper and a
reliable and thoroughly even movement of the various trains of paper with a
minimum consumption of power, substantially as hereinbefore described.
2. In a paper machine of the kind described, having a rope driving gear the
arrangement of a pair of conical belt pulleys (d' d' el e f¹ƒ³) between each rope
pulley (def) driven from the drum (b) and the arrangement of the driving shafts
of the respective machine parts with one conical pulley mounted on the shaft of the
rope pulley and the counter conical pulley mounted immediately on the driving
shaft of the respective machine part in order to regulate the travel of the separate
trains of paper, substantially as described.
3. In a paper machine of the kind described having a rope driving gear, the
arrangement of adjustable rope pulleys driven from the drum (6) and directly
mounted on the driving shafts of the separate parts in such a way that according to
requirements said rope pulleys may be driven by the rope with a greater or lesser
diameter with the object of regulating the travel of the separate trains of paper,
substantially as described.
Dated this 11th day of March 1897.