Improvements in and relating to Hydraulic Mangles for Finishing Woven Fabrics.
Year: 1897

page_text: Date of Application, 20th Dec., 1897
Complete Specification Left, 17th Sept., 1898-Accepted, 26th Nov., 1898
Date of Application, 20th Dec., 1897
Complete Specification Left, 17th Sept., 1898-Accepted, 26th Nov., 1898
PROVISIONAL SPECIFICATION.
PROVISIONAL SPECIFICATION.
Improvements in and relating to Hydraulic Mangles for Finishing
Woven Fabrics.
We, HENRY CAMERON, of 308, Blackness Road, Engineer, and JOHN MACLAREN
MALLOCH, of 5, Baxter Park Terrace, Engineer, both of Dundee, in the County of
Forfar, Scotland, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in hydraulic mangles for finishing woven
fabrics, the objects being to reduce to a minimum the time taken in changing from
one cloth roller to another; in re-applying the pressure to such fresh cloth roller;
in providing means for instantaneously and intermittently varying the pressure on
the cloth roller under treatment, in order to imitate to some extent the action of a
series of bettles on the cloth; and lastly to improve the action and arrangement of
the circular beam plate stopping device used in combination with the locking toggles
and top blocks.
Our invention is applicable to a machine in which there are two circular beam
plates for carrying three cloth rollers, each of which in turn is subjected to
treatment between the pressing rollers.
In carrying out our invention, we employ a compound accumulator, so designed
that it can automatically govern the pressure within the cylinders of the pressing
rollers and simultaneously accumulate sufficient potential energy to instantaneously
raise the top roller when required.
Such accumulator consists of two outer rams of equal diameter and one central
ram, the two outer rams being designed to take up in series the mangling
weights only, and thus determine the pressure to which the cloth rollers are to be
subjected. The central ram is loaded with such a weight as will give the required
pressure for lifting the top roller and its bushes clear of the circular beam plates.
The compound accumulator operates in the following manner:-The trigger rods on
the right and left of the accumulator are set for the required mangling weights and
on the pumps being started, the two outer rains rise until the weights actuate the
trigger rod say on the right hand side. This rod in turn causes a lever to open the
intermittent supply valve and thus permits some water to escape into the
central accumulator and thus raises its ram to some extent. The mangling
weights then fall slightly owing to the escape of the water into the central
accumulator and then rise again, the alternate rising and falling continuing as long
as the central ram is rising.
When the central ram rises to its full height it actuates a bell crank and slipper
on the top of the compound accumulator, thus allowing of the trigger on, say the
left hand side being operated by the mangling weights and so stopping the pumps.
When the cloth is treated for a sufficient length of time the mangling weights are
locked up by the stop valve and are in position for the succeeding cloth beam, the
top roller at the same time being raised by the central accumulator.
Sometimes instead of using two outside rams and one central ram, as previously
described, may only use
we
two rams, one for regulating the pressure,

page_text: in the pressing roller cylinders and the other for raising the top roller when
required.
In some cases we employ a compound accumulator to vary the pressure on the
cloth roller. We preferably do this by means of a slide valve which is reciprocated
continuously in any suitable known way and which is designed to alternately set up
communication with the one or the other accumulator and thereby vary the pressure
on the top roller.
The automatic stopping device which we prefer to use in combination with the
known locking device for the circular beam plate consists of a pin which fits easily
into a hole in the gable of the machine, its axis being parallel to the axis of the top
roller. In the circular beam plate are three holes which alternately come opposite
the pin, when such plate is rotated: The pin is provided with a spring which causes
it to bear against the circular plate and consequently it will go into the first hole
that comes opposite it. These holes are so placed as to determine the correct
relative position of mangle and cloth rollers.
Dated this 16th day of December 1897.
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicants.
Improvements in and relating to Hydraulic Mangles for Finishing
Woven Fabrics.
We, HENRY CAMERON, of 308, Blackness Road, Engineer, and JOHN MACLAREN
MALLOCH, of 5, Baxter Park Terrace, Engineer, both of Dundee, in the County of
Forfar, Scotland, 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 :-
This invention relates to improvements in hydraulic mangles for finishing woven
fabrics, the objects being to reduce to a minimum the time taken in changing
from one cloth roller to another; in re-applying the pressure to such fresh cloth
roller; in providing means for instantaneously and intermittently varying the
pressure on the cloth roller under treatment in order to imitate to some extent
the action of a series of beetles on the cloth; and lastly to improve the action
and arrangement of the circular beam plate stopping device used in combination
with the locking toggles and top blocks.
Our invention is applicable to a machine in which there are two circular. beam
plates for carrying three cloth rollers, each of which in turn is subjected to treatment
between the pressing rollers.
And in order that our said invention and the manner of performing or carrying
the same into effect or practice may be properly understood, we have hereunto
appended three explanatory sheets of drawings in which the same reference numerals
are used to indicate corresponding parts in all the figures where' shown, that is to
say :-
Figure 1 (Sheet 1) is a vertical section at A A (Figure 4) of a part of our
improved machinery.
Figure 2 (Sheet 1) is an enlarged sectional view of the slipper wedge.
Figure 3 (Sheet 2) is a view looking in the direction of the arrow Z (Figure 1)
of the pump gear stop motion.
Figure 4 is a vertical part section at B B (Figure 1) showing relative position of
the intermittent valve.

page_text: Figure 5 (Sheet 3) is a view looking in the direction or
showing the mangle fitted with our improved stop motion.
Figure 6 is a sectional elevation of same.
the TUW
We have not shown in the drawings certain well known details, such as the
cylinders of the pressing rollers and the locking device, as the mode of applying and
using such is described in Specification No. 21858 of A.D. 1895.
In carrying out our invention, we employ a compound accumulator, as illustrated
by Figures 1 to 4, so designed that it can automatically govern the pressure within
the cylinders of the pressing rollers and simultaneously accumulate sufficient
potential energy to instantaneously raise the top pressure roller when required. Such
accumulator consists of two outer rams 10 of equal diameter and one central ram 11,
the two outer rains being designed to take up in series the mangling weights 12 only,
and thus determine the pressure to which the cloth rollers are to be subjected. The
central ram is loaded with such a weight 13 as will give the required pressure for
lifting the top roller and its bushes clear of the circular beam plates.
The compound accumulator operates in the following manner :-
The trigger rods 14 and 15 on the right and left of the accumulator are set for the
required mangling weights; as shewn in Figure 1, they are arranged to allow of the
whole of the weights being taken up. These rods consist of tubes upon which are a
series of projecting arms 16 set spirally, the arrangement being such that one only
of each rod can be in a controlling position at the same time. The adjustment is
made by rotating the tube, step by step, for a sufficient distance around its axis
to bring the desired arm into position. On the pumps being started the two
outer rams 10 rise, gathering up the weights 12 in series, until the top weight
actuates the trigger rod 14 by lifting it up. This rod in turn causes a lever 17
to open the intermittent supply valve 18 and thus permit some water to escape
into the central accumulator 11, by this means raising its ram to some extent.
The mangling weights 12 and their rams 10 then fall slightly owing to the
escape of the water from them into the central accumulator 11. They then rise
again until the weight 12 actuates the intermittent supply valve 18, the alternate
rising and falling continuing as long as the central ram is rising.
When the central ram of the accumulator 11 rises to its full height it actuates
a bell crank 19 and slipper 20 on the top of the compound accumulator, that is
to say when the part 21 of the rising central ram comes in contact with the
bell crank 19, it withdraws the slipper 20 and thus allows the mangling weights
to lift the tube 14 on which are the arms 16 without at the same time lifting
the central rod 22. It will be noticed that the projecting arms on the tube 15
are set somewhat higher than those on the tube 14. When the slipper 20 is
withdrawn the mangling weights can rise until they come in contact with the
projecting arm 16 on the trigger tube 15, thus lifting the lever 23 which in
turn actuates the belt gear 24 to stop the pumps. When the cloth is treated
for a sufficient length of time the mangling weights are sustained and locked in
their highest working position by means of a stop valve, which is not shown in
the drawings, its function being to retain the water in the accumulators 10.
They are then in position for the succeeding roller beam 27, the top pressure
roller at the same time being raised by the central accumulator 11 in the usual
way, as described in Specification No. 21858 of A.D. 1895.
Sometimes instead of using two outside rams and one central ram, as previously
described we may only use two rams, one for regulating the pressure in the pressing
roller cylinders and the other for raising the top roller when required.
The automatic stopping device which we prefer to use in combination with the
locking device for the circular beam plate is illustrated by Figures 5 and 6 and
consists of a pin 25 which fits easily into a hole in the gable 26 of the machine, its
axis being parallel to the axis of the beam roller 27. In the circular beam plate 28
are three holes 29 which consecutively come opposite the pin when such plate is
rotated. The pin is provided with a spring 30 which causes it to bear against the
circular plate and consequently it will go into the first of these holes that come

page_text: opposite it. The holes are so placed as to determine the correct relative position of
mangle and cloth rollers.
When the circular beam plate is to be turned round for another bean to be operated
on, the pin 25 is withdrawn by means of the handle 31 which at the same time puts
friction driving gear for the beam plate into operation in the usual way. The beam
plate now revolves until the succeeding pin hole comes opposite the pin, whereupon
the spring 30 forces such pin home and simultaneously takes the friction gear out
of action.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we wish it to be understood
that we are aware that accumulators have already been used in connection with
hydraulic mangles and that the locking device and friction driving gear for beam
plates hereinbefore referred to are also in use, but we declare that what we
claim is:-
(1) In compound accumulators for mangles, the combination and arrangement of
parts for accumulating a store of energy while a beam is being mangled, such that
when the mangling operation is concluded, the top roller and its appurtenances can
at once be lifted out of the beam plate, as described and shown in the accompanying
drawings.
(2) In 'compound accumulators for mangles, the combination and arrangement of
parts for intermittently opening communication between accumulators of different
pressures, thus causing a vibratory action in the pressure cylinders of the mangle, as
described and shown in the accompanying drawings.
(3) In compound accumulators for mangles, the combination and arrangement of
parts for locking the mangling weights in their highest working position by shutting
the stop valve, so that when the succeeding beam is to be treated, the mangling
process can at once proceed without losing time raising such weights.
(4) In mangles, the combination of a stop pin, bell crank and spring with the
known circular beam plate and friction driving gear, substantially as described and
shown in the accompanying drawings and for the purposes set forth.
(5) In improved machinery for mangling or finishing woven fabrics, the con-
struction, arrangement and combination of parts, substantially as hereinbefore
described and shown in the accompanying drawings.
Dated this 12th day of September 1898
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicants.