Improvements in the Construction of Step and Bolster Bearings for the Spindles of Spinning and Doubling Machines.
Year: 1887

page_text: Improvements in the Construction of Step and Bolster Bearings for
the Spindles of Spinning and Doubling Machines.
I, SAMUEL TWEEDALE, Manager of Globe Works, Accrington, Lancashire, do hereby
declare the nature of my said invention to be as follows:-
This invention relates to improvements in the construction of step and bolster
bearings of spindles for spinning and doubling machines, having a bolster tube
supported in a bolster carrier or base such as is shown in Fig. 3 sheet 1 of specifica-
tion of Letters Patent granted to me in 1881 No. 2095. In the above named
specification the upright position of the spindle is insured by a spiral spring held by
nuts pressing the collar of the bolster tube against a shoulder in the bolster case or
base, the lower end of the bolster tube being free to move so as to accommodate itself
to an unbalanced load. In my present invention I dispense with the spiral springs
and nuts and employ a collar so made as to fit closely to the inside of the base or bolster
carrier. This close fitting of the bolster tube supports the spindle in an upright posi-
tion when at rest-I then make a part of the collar into a shell by boring or cutting
away a portion of the metal between the outside and the centre and also cut a number
of grooves through this shell part thus rendering it elastic and enabling the lower end
of the bolster tube to have a limited amount of lateral motion and accommodate itself
to an unbalanced load.
The lower end of the bolster tube is limited in its lateral motion by the size of the
hole in the bolster carrier or base.
After inserting the bolster tube in the base I force a brass cap on the top of the
base to prevent the tube being lifted out of its place.
Dated 3rd February 1887.
WALTER
BRIERLEY,
Agent for Applicant.

page_text: A
бодой исион от обер апа Бoister bearings for
the Spindles of Spinning and Doubling Machines.
I SAMUEL TWEEDALE, of Globe Works, Accrington, in the County of Lancaster,
Manager, 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 stateinent :-
This invention relates to improvements in the construction of step, and bolster
bearings of spindles for spinning, and doubling machines having a bolster tube
supported in a bolster carrier, or base such as is shewn in Fig. 3 sheet 1 of Specification
of Letters Patent granted to me in 1881 No. 2095. In the above named specification the
upright position of the spindle is insured by a spiral spring held by nuts pressing the
collar of the bolster tube against a shoulder in the bolster case, or base the lower end
of the bolster tube being free to move so as to accommodate itself to an unbalanced
lead. In my present invention I dispense with the spiral springs, and nuts, and
employ a collar so made as to closely fit the inside of the base or bolster carrier. The
bolster tube supports the spindle in an upright position when at rest. I then make a
part of the collar into a shell by boring or cutting away a portion of the metal between
the outside, and the centre, and also cut a number of grooves through this shell part,
thus rendering it elastic, and enabling the lower end of the bolster tube to have a
limited amount of lateral motion, and accommodate itself to an unbalanced load.
The lower end of the bolster tube is limited in its lateral motion by the size of the
hole in the bolster carrier or base.
Such being the nature and object of my said invention the following is a
complete description of same, reference being had to the accompanying drawings
forming a part of this specification in which :-
Fig. 1. is an elevation of spindle, and appliances connected therewith.
Fig. 2. is a vertical section of Fig. 1.
Fig. 3. is a section through line A. B. of Fig. 2.
Fig. 4. is a sectional elevation of the bolster tube.
Fig. 5. is a plar view of Fig. 4.
According to this my invention I dispense with the spiral springs, and nuts, and
employ a collar 1 so made as to fit closely to the inside of the base or bolster
carrier 2. The bolster tube supports the spindle 3. in an upright position when at
rest. I then make a part of the collar into a shell 4 by boring or cutting away a
portion 5 of the metal between the outside 6, and the centre 7. forming an annular
space 5, and also cut a number of grooves 8, vertical or longitudinal through this
shell part 4 rendering it elastic and enabling the lower end of the bolster tube 9 to
have a limited amount of lateral motion and accommodate itself to an unbalanced
load.

page_text: The lower end of the bolster tube 9 is limited in its lateral motion by the size of
the hole 10 in the bolster carrier or base 2.
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 collar 4 when made elastic by means of the vertical, or longitudinal slits 8,
and the annular space 5, as described and as illustrated by the annexed drawings.
Dated this 1st day of November 1887
SAMUEL TWEEDALE.
By his Agent,
Walter Brierley,
Town Hall Buildings, Halifax.