Improvements in Drawing Rollers for Textile Machinery.
Year: 1899

page_text: PROVISIONAL DI MULTICATION.
Improvements in Drawing Rollers for Textile Machinery.
I, HENRY LIEBERT, of Perseverance Works, Milnrow, in the County of Lan-
caster, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in drawing rollers for textile machinery,
such as are coupled together.
Hitherto it has been customary to couple such rollers together by forming
one end with a square socket and the other with a shank fitting the said
socket, the said socket having generally been formed in a special forging
machine and the said shank in a slotting machine.
In practice it has been found that it is almost impossible and very difficult
to form a socket perfectly concentric with the axis of the roller whereas it is
possible to form a perfectly concentric shank.
Hence in coupling such rollers together they require numbering, cannot be
interchanged which makes, the manufacture of them costly and prevents them
being stocked.
The object of my invention is to over come the said defect and to accomplish
it, I form the shank of the roller and the socket by the usual means, but the
socket I form larger in the square than the shank.
This socket I line or bush by wholly or partly filling it with white metal
and forcing concentrically into the said metal whilst fluid, a plunger corre-
sponding in shape and size with the shank on the roller.
The superfluous white metal I allow to overflow and when cold I cut level
with the end of the socket or I may form suitable holes in the side of the
socket through which the white metal may overflow keeping at the same time
the white metal lining or bush in position in the socket.
Dated this 27th day of Irina 1890
Improvements in Drawing Rollers for Textile Machinery.
I, HENRY LIEBERT, of Perseverance Works, Milnrow, in the County of Lan-
caster, Engineer, 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 drawing rollers for textile machinery,
such as are coupled together.

page_text: Hitherto it has been customary to couple such rollers together by forming
one end with a square socket and the other with a shank fitting the said
socket, the said shank having generally been formed in a special forging
machine and the said socket in a drilling and slotting machine.
In practice it has been found that it is almost impossible and very difficult
to form a socket perfectly concentric with the axis of the roller whereas it is
possible to form a perfectly concentric shank.
Hence in coupling such rollers together they require numbering and cannot be
interchanged which makes the manufacture of them costly and prevents them
being stocked.
The object of my invention is to overcome the said defects and to accomplish
it, I form the shank of the roller and the socket by the usual means, but the
socket I form larger in the square than the shank, whilst the said socket I
form with a lining or bush cast into the same by wholly or partly filling it
with fluid white metal and forcing concentrically into the same a plunger corre-
sponding in shape and size with or being slightly less in diameter ihan, the
shank on the roller, or by pouring the white metal around the said plunger
whilst in the said socket.
And in order that my invention may be more fully understood I have caused
to be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures.
Figs. 1, 2 & 3 are vertical sections, Figs. 4 & 6 end views of Figs. 1 & 3
respectively, and Fig. 5 a cross section of Fig. 2 of a roller joint and tool for
forming same, at an enlarged scale and Fig. partly an elevation and partly a
longitudinal section at a reduced scale, of a number of rollers formed in accord-
ance with my invention coupled together, the markings shown in the bottom
of the roller sockets representing the cuttings left from the squaring of the
socket.
.
In carrying out my invention, I form the socket a, Figs. 1 & 7, larger in the
square b than the shank c of the roller, either by making the same larger than
the shank of the roller or the shank slightly smaller than usual, so as to allow
of furnishing the socket with a white metal lining or bush & adapted to receive
the roller shank c.
This white metal lining or bush may be cast into the said socket in various
ways.
For example, I place or secure the roller socket a vertically into a suitable
stock or bracket e, see Figs. 1 & 2, in which I mount concentrically with and
above the said socket, a plunger f corresponding in shape and size with or being
slightly smaller in diameter than the roller shank which is to take its place in
the said lining or bush to be formed, or I may use the said roller shank as a
plunger.
I then fill the said socket wholly or partly with white metal, as shown in
Fig. 1, after which I force the plunger f (or roller shank) into the same to
the bottom of the socket a, so as to cause the white metal to be forced all round
against the interior of the socket, as shown in Figs. 2 & 5.
The superfluous white metal I allow to overflow and when cold I cut level
with the end of the socket, or I may form suitable holes g in the side of the
socket a, see Figs. 3 & 6, through which the white metal may overflow keeping
at the same time the white metal lining or bush d in position in the socket.
According to a modification of my invention I may pour the white metal into
the roller socket whilst the said plunger (or roller) is in position therein as
will be readily understood.
When using a plunger slightly smaller in diameter than the roller shank,
after having raised it out of the white metal lining or bush thus formed and
the latter has become cold, I force into the latter a second plunger which in
diameter corresponds with the roller shank and serves to expand the lining or
bush against the square in the roller and thus compensate for the contraction

page_text: thereof which takes place when cooling at the same time compress and force
same into the crevices in the square b.
Instead of using a second plunger, the first plunger (or the roller shank
itself) may be used a second time for the said purpose.
After removal of the said second plunger or the second use of the first plunger
(or roller shank itself) the roller socket is finished, as shown in Figs. 3 & 4,
and ready for the reception of the roller shank.
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
1 claim is:-
.
1st. In drawing rollers for textile machinery, forming the roller socket with
a white metal lining or bush cast into the same with its interior concentric to
the axis of the roller, all substantially as and for the purpose set forth.
2nd. The use of a plunger for casting a white metal lining or bush into the
socket of a roller for textile machinery, arranged concentrically with the axis
of the roller, all substantially as set forth.
Dated this 27th day of March 1900
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.