IMPROVEMENTS IN WRINGING ROLLING AND MANGLING MACHINES
Year: 1885

page_text: I JAMES HENRY WOODWARD of 3 Cromford Street Nottingham Machinist do
hereby declare the nature of my invention for "IMPROVEMENTS IN WRINGING
ROLLING AND MANGLING MACHINES" to be as follows:-
This invention applies to all kinds of wringing rolling and mangling machines
where the articles to be wrung, rolled or mangled are passed between rollers.
Hitherto in machines of this description each roller has had a spur wheel fastened
on its axis and these have been made to gear together so that when motion bas
been imparted to one roller the spur wheels have caused the other roller to rotate
also This way of causing the motion given to one roller to be transmitted to the
second roller has the following great disadvantages :-
Firstly. When any material is put between the rollers, one of the rollers separates
itself from the other and when thick materials are put between the rollers, one spur
wheel goes away from the other so far that if the spur wheels are not entirely
pushed out of gear, the tooth of one wheel fails to fill up the space between 2 teeth
of the other wheel which causes the machine to work unsteadily.
Suppose for instance that the teeth at the end of the rollers were one inch long
if any material more than one inch thick were placed between the rollers, one of
the rollers might cease to revolve altogether.
Secondly. In the case of using wooden rollers, which are the kind generally used
for domestic purposes, the rollers in course of time become rough on the surface,
splinters appear on them or they cease to run truly which defects cause the machine
to do its work badly and to have an unsteady motion. When this is the case the
rollers are put in the lathe and returned. In the system now in use this often
causes the spur wheels at the end of the rollers to bottom, that is, the teeth of one
wheel to rest on the bottom of the space between the teeth of the other wheels, and
the rollers cease to touch each other at the end where the spur wheels are fixed so
that new gearing wheels or new rollers must be put on the machine.
To obviate these evils I put a toothed wheel which I will call the first chain
wheel on the end of one roller which transmits its rotary motion to a toothed wheel
at some distance by means of a chain passing round the two wheels after the
manner of a belt, the teeth of the wheels entering the links of the chain. Fastened
Du

page_text: to this second chain wheel I have an ordinary spur wheel which gears in with
another spur wheel and causing it to rotate in an opposite direction and
consequently in an opposite direction to the first roller.
Fastened to and revolving on the same axis as this second spur wheel I have
another chain wheel which is connected with the second roller by means of another
chain, the teeth of these wheels entering the links of the chain as in the first
instance.
The endless chain driving the top roller is arranged to be approximately at right
angles to the plane in which the upper roller rises and falls so that this roller can
play up or down without materially tightening or loosening the endless chain
which drives it.
By these means I am able either to separate the rollers one from the other, or
turn the rollers smaller without detriment to the working of the machine.
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page_text: "
I, JAMES HENRY WOODWARD of 3 Cromford Street Nottingham, Machinist do
hereby declare the nature of my invention for "IMPROVEMENTS IN WRINGING
ROLLING AND MANGLING 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 bas for its object improvements in wringing rolling and mangling
machines.
'
Hitherto in the ordinary wringing and mangling machines each roller has a spur
wheel fastened on its axis which directly imparts to one roller the rotating motion
of the other.
This arrangement has great disadvantages.
Firstly. When any material is put between the rollers one of the rollers separates
itself from the other and when thick materials are put between the rollers one spur
wheel goes away from the other so far that if the spur wheels are not entirely
pushed out of gear the tooth of one wheel fails to fill up the space between two
teeth of the other wheel which causes the machine to work very unsteadily.
Secondly. In the case of using wooden rollers which are the kind generally used
for domestic purposes the rollers in course of time become on the surface very rough,
splinters appear on them or they cease to run truly which defects cause the machine
to do its, work badly and have an unsteady motion.
When this is the case the rollers are put in the lathe and returned.
With the system generally in use this often causes the spur wheels at the end of
the rollers to bottom, that is, the teeth of one wheel to rest on the bottom of the
space between the teeth of the other wheel and the rollers cease to touch each other
at the end where the spur wheels are fixed so that either new gearing wheels or
new rollers must be put on the machine.
To obviate these evils I use one or more chains to transfer the rotary motion of
one roller to the other.
This arrangement enables short teeth to be used on the gear wheels as the teeth
always have the same hold on each other and prevents the breaking of teeth so
common in the ordinary wringing and mangling machines.
By the use of one or more chains I am able either to separate the rollers one
from the other or turn the rollers smaller without detriment to the working of the
machine.
The drawings annexed show chain gearing for wringing rolling and mangling
machines arranged in accordance with my invention and in such manner that the
rollers may separate without interfering with the driving mechanism.
Figure 1 is an end elevation of the upper part of such a machine provided with
my chain gear. Figure 2 is a plan of the same. Figures 3 and 4 show one modi-
fication of the arrangement and Figures 5 and 6 show another modification.
In Figures 1 and 2 a is the side frame of the machine. b is the spindle of the
lower roller, it is driven on the other side of the machine in any usual and
convenient manner. c is a chain wheel on the spindle b. d is an endless chain

page_text: .
transmitting motion from the wheel c to another chain wheel e. Fast with the
wheel e and turning upon the same stud axis f there is a spur wheel g in gear with
another similar wheel h. There is a chain wheel i attached to the wheel h and
rotating with it on the stud k and this wheel receives an endless chain l. The
chain passes around a chain wheel m on the spindle n of the upper roller o and
so this roller is driven.
The guides for the bearings of the spindle n are vertical and the centre of the
spindle is nearly in the same horizontal plane with the centre of the stud axis k.
Consequently the variation in the distance between the rollers which occurs in
working from alteration in the thickness of the material passing between the
rollers does not interfere with the due action of the driving gear transmitting
rotary motion from the lower roller to the upper.
In Figures 3 and 4 the spindle b of the lower roller has a spur wheel b¹ upon it
and this drives another spur wheel p upon a stud axis p¹. The spur wheel p has a
chain wheel p' fast upon it and a chain q passes around this wheel and also another
wheel r. The latter wheel is fast with the wheel i and from i the upper roller is
driven as in Figures 1 and 2.
In Figures 5 and 6 the spindle b of the lower roller by a spur wheel b¹ drives a
spur wheel p as in Figures 3 and 4 but in this case the chain wheel i is fixed
directly to the spur wheel p. The chain wheel by a chain & drives the chain
wheel m fast on the spindle n of the upper roller o an arrangement which is
common to all the figures.
In the case represented by Figures 5 and 6 the guide slots for the bearings of
the spindle n are curved and the spindle n whatever position it takes is always
equally distant from the chain wheel i.
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
The combination with the rollers of wringing rolling and mangling machines of
chain wheels, endless driving chains and other gear in such manner that when the
distance between the rollers changes the driving gear is not interfered with.