IMPROVEMENTS IN THE MANUFACTURE OF ROLLERS FOR WRINGING AND MANGLING MACHINES
Year: 1883

page_text: LETTERS PATENT to William Lockwood of Sheffield in the County of York
for an Invention of IMPROVEMENTS IN THE MANUFACTURE OF ROLLERS FOR
WRINGING AND MANGLING MACHINES
PROVISIONAL SPECIFICATION left by the said William Lockwood at the
Office of the Commissioners of Patents on the 27th June 1883.
WILLIAM LOCKWOOD of Sheffield in the County of York, "IMPROVEMENTS IN
THE MANUFACTURE OF ROLLERS FOR WRINGING AND MANGLING MACHINES"
My Invention relates to the manufacture of Rollers for Wringing and Mangling
Machines, the object being to produce rollers that will be impervious to wet, and
that will not rot nor loose their cylindrical shape as wood rollers are so apt to do
after being subjected to great pressure, and softened by the action of water.
In the manufacture of my improved rollers (which consist of an axle, a metallic
supporting core, and the roller proper) I use by preference, for the axle a length of
round bar steel, trued by the process known as "reeling," and which is cut off to
the exact length required.
The core is made of cast metal, and is the same length of the roller or there-
abouts. I prefer to make the centre hole of the core considerably larger than the
diameter of the axle, and on the outside it is provided with longitudinal strength-
ening ribs either straight, curved, or helical, and the roller proper I make of any
suitable plastic material, preferably of Portland Cement. I use a mould, the
smooth interior of which corresponds with the size of the required roller, fitted
with removeable end plates having centre holes to receive and support the axle.
I place the metallic core, in an upright and central position in the mould, the
axle being put through it and supported by the end plates, I then fill both the
inside of the core and the mould, with Portland Cement in a liquid state and
when it is sufficiently "set" I remove it from the mould and put it to dry.
"I thus save the cost of turning necks upon the axle, of securing the axle by keys:
Price Bd1

page_text: or other devices in the roller, and also of boring and turning the roller-The uso
of a ribbed core, by its rigidity prevents the roller from giving way under pressure,
and cracking which it otherwise would be liable to do. The process of manu-
facture is economical as there is only the minimum of labour required, and the
materials are cheap; and great utility will result in prolonging the life of such
rollers, the material not being detrimentally affected by water.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Lockwood in the Great Seal Patent Office on the
27th December 1883..
WILLIAM LOCKWOOD of Sheffield in the County of York. "IMPROVEMENTS IN
THE MANUFACTURE OF ROLLERS FOR WRINGING AND MANGLING MACHINES
"
My invention relates to the manufacture of rollers for wringing and mangling
machines, having for its object the production of rollers that will be impervious to
wet, and that will not rot, nor loose their cylindrical shape, as wood rollers are so
apt to do when subjected to pressure, after being softened by the action of water.
In carrying out my invention, I make the body of the roller of a suitable plastic
material, that will set hard, preferably Portland Cement, and I cast or run such
material wbilo in a liquid state, round and upon a metallic strengthening core,
which is supported in the centre of a suitable mould of the required diameter of
the finished roller, or into a tube of baked earthenware, or a thin metallic tube,
which will then form the outer surface or skin of the roller; and in order that my
invention may be distinctly understood, I will refer to the sheet of drawings in
which the same letters of reference indicate similar parts in all the figures
Fig. 1 is a sectional view of a roller, showing the various parts, A. is the axle,
B is the strengthening core, C is the body of the roller.
Fig 2, is a cross section of the same roller which shows the ribs D of the core B.
In making this construction of roller I use a mould (see Fig. 3) the inside of
which is made perfectly smooth and cylindrical, and of the required diameter; for
the different lengths of rollers I use end pieces E, with the parts F varying in
length, (see Fig. 4) and arranged to support the axle A, in a central and exactly
perpendicular position as shown in Fig. 3. The ribbed core B, which may have
any desired number of ribs, (which may be either straight or curved) is passed
over the axle as shown in Fig. 2, the opening in the core being large enough to
admit a considerable quantity of the Portland Cement between the two at G.
When the end piece or lid E is placed in position, the liquid Cement is poured
into the mould, and between the axle and the core, through a suitable opening H,
which when it has set quite hard, binds all the parts together, and may then
removed from the mould and put to dry. As a modification of the plan above
described, I sometimes uso instead of the mould, a cylindrical baked earthenware

page_text: pipe or jacket, and having placed the axle and core in the proper central position,
I fill the interior with the liquid cement, the whole of the parts are thus bound
together and form a solid roller, having a hard skin or shell I, shown in Fig. 5.
Instead of the baked earthenware pipe or tube I, I sometimes use a metallic shell,
made of sheet zinc for example, which is filled up in the same way as before
described and is shown in Fig. 6
For the Axles I prefer to use bars of reeled steel, which being perfectly straight
and round, dispenses with turning, thus the skilled labour necessary in the manu-
facture of rollers mado according to my invention is very small, and the cost is
thereby reduced.
Having now described and fully ascertained the nature of my said Invention,
and the manner of carrying it into practice, what I consider to be novel and
original and therefore claim as the invention secured to me by the herein before
in part recited Letters Patent, is-
The construction of rollers for mangling and wringing machines by forming
the body of the roller of cement cast upon a core, with or without the outside
metallic or carthenware jacket or shell, substantially as described and
illustrated.
In witness whereof I the said William Lockwood have hereunto set my
band and seal, this twenty first day of December, in the year of our Lord,
One thousand eight hundred and eighty-three