Year: 1888

page_text: Date of Application, 22nd May, 1888
Complete Specification Left, 4th Feb., 1889
Complete Specification Accepted, 9th Mar., 1889
I, RICHARD SCHULZ of Tegel near Berlin, Engineer, do hereby declare the nature
of this invention to be as follows:-
It is essential that with each rope winding drum, the rope be wound up and
unwound in perfect order so that the rope will be preserved as much as possible and
the greatest possible length of rope be wound up on the drum.
This presents no great difficulties with drums the ropes of which are continually
under a certain tension in consequence of the load attached thereto, but when the rope
is not constantly stretched and under tension as for instance with winding drums for
captive balloons the rope might easily get into disorder. When the tension lessens
the rope will be wound loosely on the drum and when it is unwound again it will leave
the drum with difficulty and only become more loose.
These disadvantages will be especially noticed with a drum driven by steam and
constructed to wind or unwind with great speed.
The object of this invention is to prevent these disadvantages and it embraces
providing the drum with a counter-roller which is journalled in such a manner that it
will always press the rope against the drum. When the rope is wound up, this
counter-roller will be driven by the rope itself and when the rope is unwound an
equal or a little greater circumferential velocity than that of the druin will be imparted
to the counter-roller so that the coils of rope remaining on the drum always remain
tightly wound up.
In every case, whether the rope is only to be wound round the drum in one layer
or in several layers the counter-roller is of the same length as the drum. Between
these the rope is guided and is always pressed against the drum by the counter-roller.
For this purpose the counter-roller is preferably journalled in suitable arms mounted
on the axis of the drum, and is constantly pressed against the drum by means of
springs. This may, however also be done by weights.
When the rope is being wound up this arrangement is perfectly sufficient to keep
the rope tight on the drum but when the rope is being unwound this arrangement

page_text: would act detrimentally as the rope would be prevented by the pressure of the counter-
roller itself from being unwound in perfect order. To prevent this a rotary move-
ment of the same or a slightly greater circumferential velocity may be imparted to
the counter-roller by the drum by means of a suitable gearing.
To prevent this rotary movement being imparted to the counter-roller when not
required the spur wheel of the latter is also formed as a ratchet wheel and is mounted
loose on its axis and one or more pawls attached to the counter-roller engage. in
this ratchet wheel. When the rope is being unwound the movement of the drum
will be communicated to the counter-roller by means of the gear wheels and the
ratchet and pawls, while when the rope is being wound up the pawls will not engage
and the counter-roller will be driven by the contact with the rope. Instead of this
ratchet and pawl any other suitable coupling may be employed.
When the rope is wound in several layers on the drum the counter-roller will be
removed from the drum itself so far that the above described gear would not
engage and it will then be necessary to provide suitable intermediate gearing or
equivalent for the purpose of driving the counter-roller during the unwinding of
the rope.
Dated this and low of Mo 1000

page_text: I, RICHARD SCHULZ of Tegel near Berlin, in the Empire of Germany, 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:
It is essential that with each rope winding drum, the rope be wound up and
unwound in perfect order so that the rope will be preserved as much as possible and
the greatest possible length of rope be wound up on the drum.
This presents no great difficulties with drums the ropes of which are continually
under a certain tension in consequence of the load attached thereto but when the rope
is not constantly stretched and under tension as for instance with winding drums
for. captive balloons, the rope might easily get into disorder. When the tension
lessens the rope will be wound loosely on the drum and when it is unwound again
it will leave the drum with difficulty and only become more loose.
These disadvantages will be especially noticed with a drum driven by steam and
constructed to wind or unwind with great speed.
The object of this invention is to prevent these disadvantages and it embraces
providing the drum with a counter roller which is journalled in such a manner that
it will always press the rope against the drum. When the rope is wound up this
counter roller will be driven by the rope itself and when the rope is unwound an equal
or a little greater circumferential velocity than that of the drum will be imparted to
the counter roller so that the coils of rope remaining on the drum always remain
tightly wound up.
In the accompanying drawings;
Figs. 1 to
layer.
represent a drum on which the rope is only to be wound in one
Figs. 5 and 6 represent a drum on which the rope is to be wound in several
layers.
In every case, whether the rope is only to be wound round the drum in one layer
or in several layers the counter roller B is of the same length as the drum A.
Between these the rope is guided and is always pressed against the drum by the
counter roller. For this purpose the counter roller is preferably journalled in
suitable arms D) mounted on the axis of the drum and is constantly pressed against
the drum by means of springs G. This may however also be done by weights.
The axis of the counter roller B is adjustable in the before mentioned arms D
which are themselves adjustable on the axis of the drum A the screws E and F or
the like being provided to facilitate the adjustment of the pressure between the roller
and drum.
When the rope is being wound up, this arrangement is perfectly sufficient to
keep the rope tight on the drum, but when the rope is being unwound this arrange-
ment would act detrimentally as the rope would be prevented by the pressure of

page_text: the counter roller itself from being unwound in perfect order. To prevent this a
rotary movement of the same or a slightly greater circumferential velocity may be
imparted to the counter roller by the drum by means of suitable gearing H I. To
prevent this rotary movement being imparted to the counter roller when not required
the spur wheel of the latter is also formed as a ratchet wheel and is mounted loosely
on its axis and one or more pawls K Fig. 3 attached to the counter roller B engage in
this ratchet wheel. When the rope is being unwound the movement of the drum will
be communicated to the counter roller by means of the gear wheels and the ratchet
and pawls while when the rope is being wound up the pawls will not engage and the
counter roller will be driven by the contact with the rope. Instead of this ratchet
and pawl device any other suitable coupling may be employed.
When the rope is wound in several layers on the drum Figs. 5 and 6 the counter
roller will be removed from the drum itself so far that the above described gear H I
would not engage and it will then be necessary to provide suitable intermediate
gearing L M or equivalent for the purpose of driving the counter roller during the
unwinding of the rope.
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 rope winding drums a counter roller such as B which presses the rope against
the drum A and will be driven by contact with the rope when the latter is being
wound up but when the rope is being unwound a rotary motion of the same or a
slightly greater circumferential velocity than that of the drum is imparted to said
counter roller substantially as described.
2. In a rope winding drum such as claimed in the preceding clause and provided
with a counter roller B the adjustable bearings C situated in the arms D mounted on
the axis of the drum so that the counter roller is pressed against the drum by means
of springs G adjusted by the screws E F substantially as described and illustrated
in the accompanying drawings.
Dated this 4th day of February 1889.