IMPROVEMENTS IN WRINGING-MACHINES
Year: 1885

page_text: I RUDOLPH MINDT of Berlin, Germany, do hereby declare the nature of my
invention for IMPROVEMENTS IN WRINGING-MACHINES, and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement:-
This invention relates to wringing machines and has for its object to prevent the
limbs of the operator from being caught between the rollers.
In describing the invention, reference will be made to the accompanying
drawings, of which Fig I represents a side view and Fig II a front view of the
machine; Fig III is a plan of the reversing mechanism, partly in section, while
Fig IV represents the arrangement of the rollers with the feeding apron m and the
wringing apron n.
The invention mainly comprises:
1 An endless feeding aprou m serving to introduce the material between the
rollers a and b without approaching the latter, that is to say without bringing the
hands near the same.
2. The combination of this lower feeding apron m with an upper wringing
apron n for the purpose of gradually pressing down the material to be wrung.
3. Friction rollers fand f¹, rendered adjustable relatively to the circumference
of the friction disc F, so that by shifting such friction rollers to the right or to the
left, the material on the feeding apron m may be caused to travel forward or
backward.
The machine is otherwise constructed as follows:
a and b are the wringing rollers, c and d the guide rollers for the lower feeding
apron m. The roller c is made adjustable in a suitable manner so as to permit the
stretching of the feeding apron m.
The roller e is also adjustable and serves to guide the upper or wringing
apron n.
The endless aprons or bands m and n are preferably made of strong india rubber
or other elastic material.
The upper wringing roller a is suitably mounted in elastic and adjustable
bearings.
g and gare india rubber buffers, which may be replaced by strong helical
springs.

page_text: z and z¹ are a pair of spur wheels mounted on the shafts of the two rollers a
and b.
Sideways of the machine there is a reversing mechanism adapted to be set in or
-out of action by hand or foot, so that the material may be directed forward or
backward through the machine as required.
It is thus not necessary for the operator to reach over the rollers for removing
the material and placing the same again on the feeding apron or on the wringing
rollers.
The reversing mechanism consists of two or more friction rollers ƒ and f¹, pressed
against each other. They are set in motion by the pulley r and are mounted and
made adjustable on a slide S. s and s¹ are set-screws.
The friction rollers fand f¹ are surrounded by a fixed friction disc F, which
transmits the motion through pinion u and tooth-wheels v and w to the wringing
machine.
Under the slide S there is a shaft q with screw-coupling or helically grooved
mufft adapted to be turned to the right or to the left by means of treadles x and y,
or hand lever h.
A pin p of the slide S projects into the helical groove of the coupling t.
When the shaft q is turned, the slide S, ånd the friction blocks ff¹ mounted on
the same, are therefore pressed against the inner flange of the fixed friction block F,
and thus the motion of the rollers is transmitted to the right or to the left of the
disc F according to the position of the hand lever h, or of the treadles x and y.
When the lever h is in a vertical position, the mechanism for transmitting the
motion is thrown out of gear, and retained in this position by the counter-weight G.
K is the receptacle serving to receive the starch and water pressed out of the
washing.
By means of this convenient reversing mechanism, the wringing rollers may be
alternately turned forward and backward under the control of the hand and foot of
the operator, so that the material to be wrung may be passed between the rollers
as many times as required, without the direct assistance of the hands.
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
In wringing machines:
1. An endless feeding apron m adapted to receive the material to be wrung, at a
distance from the wringing rollers a and b, and to carry the same between the
rollers.
•
2. The combination of a lower endless feeding apron m, with an upper endless
wringing apron n, for the purpose of gradually pressing down the material to
be wrung.
3. The combination of a friction disc F, with a pair of friction rollers f and fl
made adjustable relatively to the surrounding friction disc F and pressed against
each other, for the purpose of reversing the motion of the machine, substantially as
described.
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