Year: 1886

page_text: I WILLIAM TATHAM of Vulcan Works Rochdale, in the County of Lancaster
Machine Maker, do hereby declare the nature of the said invention, to be as
follows:-
My invention relates to loose boss top rollers for preparing and spinning fibrous
materials which bosses being quite loose on their axles are liable to fall from them
when taken from the bearings in which they work, and the object of my invention
is to leave the bosses perfectly free on their axles when at work as hitherto, but
so as not to become detached therefrom when the axles are taken out of their
bearings except when it is necessary to remove the bosses from their axles.
I carry out the object of my invention in several ways namely; by forming a
groove round the axle for the boss and a corresponding groove in the interior hole
in the boss, and apply an elastic steel or other metal ring to one or the other groove
which will spring or give way when the boss is pushed upon the axle and then
expand or contract as the case may be when the two grooves are opposite and thus
form a key or lock so that a certain amount of force is required to push the boss
on or remove it from the spindle or axle, such force being more than sufficient to
hold and keep the boss upon the axle when not otherwise acted upon.
Other spring arrangements are or may be applied to the boss or axle in a similar
manner placed in grooves lengthway of the axle or boss, or a spring pin is or may
be arranged across the axle to enter a groove in the interior of the boss, the pin
giving way when the boss is pushed on the axle but springing out when its end
comes opposite the groove in the interior of the boss.
The spring ring is or may be applied to about the middle or one end of the
boss and axle for it.

page_text: Materials.
I WILLIAM TATHAM of Vulcan Works, Rochdale, in the County of Lancaster,
Machine Maker, 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 :-
My invention relates to loose boss top rollers for preparing and spinning fibrous
materials which bosses being quite loose on their axles are liable to fall from them
when taken from the bearings in which they work, and the object of my invention
is to leave the bosses perfectly free on their axles when at work as hitherto, but so
as not to become detached therefrom when the axles are taken out of their
bearings except when it is necessary to remove the bosses from their axles.
a
I carry out the object of my invention in several ways namely; by forming
groove round the axle for the boss and a corresponding groove in the interior hole
in the boss, and apply an elastic steel or other metal ring to one or the other
groove which will spring or give way when the boss is pushed upon the axle and
then expand or contract as the case may be when the two grooves are opposite and
thus form a key or lock so that a certain amount of force is required to push the
boss on or remove it from the spindle or axle, such force being more than sufficient
to hold and keep the boss upon the axle when not otherwise acting upon.
The spring ring is or may be applied to about the middle or one end of the boss
and axle for it.
Other spring arrangements are or may be applied to the boss or axle in a similar
manner placed in grooves lengthway of the axle or boss, or a spring pin is or may be
arranged across the axle to enter a groove in the interior of the boss the pin giving
way when the boss is pushed on the axle but springing out when its end comes
opposite the groove in the interior of the boss.
This spring pin is made with an enlarged head or point or with a collar near
one end, and a hole is drilled partly across the axle of the diameter of the said
head or collar from each side to leave a partition between the two large parts of
the hole, near one side of the axle, which partition has a small hole drilled through
it for the stem of the pin to pass and slide through.
There is an helical spring around the stem abutting at one end against the
partition and at the other against the shoulder under the head or the collar near
the outer end of the pin, the head or point of which will enter the groove in the
bore of the loose boss.
There is a washer or other arrangement rivetted or otherwise secured to the
inner end of the pin or stem to act as a stop to prevent it from being forced out
by the spring and lost when the loose boss is removed.
Figs. 1 and 2 are each side views of loose boss top rollers having one axle and a
Joose buss at each end of it such as are used in drawing, slubbing and roving
frames, and similar rollers are also used for spinning.
In each figure the outside view of one loose boss a is shown upon one end of the
axle b, and at the other end of the axle a loose boss is shown by a longitudinal
Bection.
The loose bosses a are covered as usual with first a layer of flanuel, with a layer
of leather over it.
Top loose boss rollers according to my invention are the same as ordinary loose
boss top rollers, with the exception of the modification required to prevent the

page_text: loose bosses a from coming off their axles b except when it is necessary that they
should be removed.
In fig. 1 a longitudinal groove or channel is formed in the axle (the axle being
shown partly in section) for a flat spring c a flat view of which is shown by fig..7-
This flat spring c is soldered or otherwise secured in the groove in the axle bat
one end, the other end being curved as shown, there being space deep enough in
the groove of the axle to allow it to be pressed inwards until its upper curved
surface is below the cylindrical periphery of the axle a.
The curved end of the flat spring c when free, and when the boss a is in its place
as shown in fig. 1 lifts and enters a curved groove a¹ formed round the interior bore
of the loose boss a.
Thus arranged the loose boss can move endways slightly and is as free as the
ordinary loose boss on its axle when at work but it cannot fall from its axle say
by its own weight when the axle is vertical, and thus requires a force equal to
compress and force down the spring into its groove before the loose boss can be
removed from or replaced upon its axle.
Fig. 2 shows the arrangement which I prefer to use in carrying out my
invention.
A rectangular groove b¹ is formed round the axle b about where its diameter is
the largest see figs. 2 and 3, (fig. 3 is a short length of the axle with the groove
formed in it) in this groove a ring or partial ring d of steel or other elastic material
is inserted.
The ring d may be described as of square cross section with the outer side
rounded as shown in figs. 2 and 4 in which fig. 4 is a section of the ring detached.
It is or may be first partly bent to the size required and then inserted in the
groove and bent so as to encircle the groove of the axle as shown in fig. 5 (a cross
section through the axle) where it will be seen that the upper or round edge of
the ring projects above the surface of the axle, but that there is a space left
between the interior surface of the ring and the bottom of the groove for the ring
in the axle.
This space is to allow the ring to be compressed into the groove sufficiently to
allow the boss to pass over when it is to be removed from or placed upon the axle.
The outer round part of the ring (the side view of which is shown detached by
fig. 6) when free enters the groove a¹ formed round the interior of the bore of the
loose boss as shown.
The two ends of the ring d are made pointed as shown in figs. 2 and 6 so as to
always keep within the groove and below the outer surface of the larger diameter
of the axle, and thus not be liable to catch upon the end of the loose boss when
placed upon the axle.
By making the groove in the axle and the ring d of the form described the ring
is always retained upon the axle when the boss is removed.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what
I claim is
1. The spring or elastic arrangement substantially as and for the purpose
herein before described.
2. The combination of loose boss top rollers with their axles, and with spring or
elastic arrangements substantially as and for the purpose hereinbefore described
nd illustrated by the drawings.
Dated this sixteenth day of October 1886.
PETER J. LIVSEY,
Agent.