Improved Bearings or Doll-heads for the Shafts of Rotary Cylinders or Heated Rollers
Year: 1899

page_text: Date of Application, 10th May, 1899
Complete Specification Left, 12th Feb., 1900-Accepted, 31st Mar., 1900
PROVISIONAL SPECIFICATION.
Improved Bearings or Doll-heads for the Shafts of Rotary Cylinders
or Heated Rollers.
We, THOMAS BAXENDALE and GEORGE BAXENDALE, both of Albert Street
Works, Chorley, in the County of Lancaster, Engineers, and JAMES GENT, of the
same place, Manager, do hereby declare the nature of this invention to be as
follows, that is to say:-
it relates to bearings, known as doll-heads, for supporting the shafts of rotary
cylinders or rollers heated by steam, hot air or the like and consists in construct-
ing same in such a manner that they may be more readily adjusted or mounted
in position for performing their functions, than they have been heretofore, while
when worn or for other reasons the bearing surfaces have to be repaired, this
may be readily and cheaply effected.
In carrying our invention into effect we construct the bearing or support so
that it will receive a somewhat spherical sleeve mounted upon the roller's or
cylinder's shaft, this sleeve being formed for said shaft to revolve in it while.
its spherical part is held in position in the bearing or support.
To enable the usual devices to be employed for holding or adjusting the
packing used for making the joints steam-tight, we make use of an annular piece
or ring which we shape to conform to the spherical surface of the sleeve on one
side and with a suitable face for holding the packing on the other side, from this
it will be seen that any irregularities in the mounting of one bearing relatively
with another, or any deviations of the shafts from their true axial centres is
allowed for by the swivelling of the spherical sleeve in its bearings.
Should one part of any of said sleeves wear away more quickly than another,
by shaping the neck part of same so that a wrench, spanner or other device may
be used, we can easily turn said sleeve upon its shaft and within its bearing so
that the worn part is moved to another position leaving a better and more perfect
surface to again be acted upon.
SAMUEL HEY,
Agent for the Applicants.
Improved Bearings or Doll-heads for the Shafts of Rotary Cylinders
or Heated Rollers.
We, THOMAS BAXENDALE and GEORGE BAXENDALE, both of Albert Street
Works, Chorley, in the County of Lancaster, Engineers, and JAMES GENT, of the
same place, Manager, do hereby declare the nature of this invention and in what
[Price 81

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement, that is to say:-
It relates to bearings, known as doll-heads, for supporting the shafts of rotary
cylinders or rollers heated by steam, hot air on the like and consists in construct-
ing same in such a manner that they may be more readily adjusted or mounted
in position for performing their functions than they have been heretofore, while
when worn or for other reasons the bearing surface. have to be repaired, this
may be readily and cheaply effected.
In order that our said invention may be readily understood, we have hereunto
appended sheets of drawings illustrative thereof, to which by figures and letters,
reference is made in the following description.
Fig. 1 is a side elevation of a sufficient portion of a machine for drying fabrics,
as will illustrate the application thereto of our improvements.
Fig. 2 is a plan view of parts illustrated by Fig. 1.
Fig. 3 is a sectional side view, enlarged scale, of our improved bearing or
doll-head" for the end of a hollow shaft or roller.
Fig. 4 is a sectional end elevation on line X-X of parts shown by Fig. 3.
Figs. 5 and 6 are side and end views of the sleeve or bush hereinafter described.
Fig. 7 is a detail drawing hereinafter referred to.
Similar figures and letters of reference indicate similar parts throughout the
several views.
The class of machines to which our improvements are especially applicable
are those wherein cylinders or rollers heated by hot air or stem are employed,
thus necessitating the use of bearings the joints of which are steam-tight, such
machines being extensively used in connected with the drying, printing etc.,
of fabrics. In the machine illustrated by Figs. 1 and 2, which is for use in the
drying fabrics, the cylinders or rollers a are rotated by means of suitable gearing
wheels, and steam or hot air supplied to them from the conduits b mounted on
the framework A of the machine, through the openings c¹ (see Fig. 3) in the
bearings or supports c, and thence through the hollow shafts a¹ of said cylinders.
In carrying our invention into effect, we construct our bearing or support e so
that it will receive the sleeve or bush d which is somewhat spherical in shape
and is mounted on the roller's or cylinder's shaft a', said sleeve being formed for
said shaft to revolve in it, while its spherical part d¹ is held in position in the
bearing or support c by reason of the inner surface of said bearing correspond-
ing in shape to the spherical part of said sleeve.
To enable the usual device e operated by the screw f (taking through the
end of the bearing c) to be employed for holding or adjusting the packing g
used for making the joints steamtight, we make use of an annular piece or ring h
the surface of which is shaped to conform to the spherical part of the
sleeve d, while the surface his suitably formed for holding the packing 9.
From the foregoing description it will be seen that any irregularities in the
mounting of one bearing c relatively with another or any deviation of the
shafts a from their true axial centres is allowed for by the swivelling of the
spherical sleeve in its bearing c.
Should one part of said sleeve d wear away more quickly than another, by
shaping the neck part d² of same as shown in the drawings, so that a wrench,
spanner or other device may be applied thereto, we can easily turn said sleeve
upon its shaft and within its bearings c so that the worn part is moved to another
position, leaving a better and more perfect surface to again be acted upon. We
also preferably provide means for lubricating the bearing parts, consisting of a
groove in the spherical part of the sleeve d, into which oil is fed through
the opening in the bearing e, ducts being further formed in said spherical
part to conduct said oil into contact with the shaft a¹.
Although we have herein before described our improvements as applied to
machines for drying and printing fabrics, it will readily be seen that they may
be employed in connection with the shafts of any kind of cylinders or rollers

page_text: which are required to be internally heated by the passage thereto of steam or
heated air.
Having now particularly described and ascertained the nature of our said in-
vention, and in what manner the same is to be performed, we declare that what
we claim is :-
1. In bearings for the shafts of internally heated rotary rollers or cylinders,
an outer shell having a surface shaped to receive the spherical part of a sleeve
or bush in which takes the shaft to be supported, said sleeve and parts in con-
nection therewith, the same being constructed substantially as herein specified.
2. Bearings for the shafts of internally heated rotary cylinders or rollers the
same being constructed and arranged substantially as herein specified.
Dated this 9th day of February 1900.
SAMUEL HEY,
Agent for Applicants.