Improvements in the Lifting-pokers and Ring-rails of Spinning Machines.
Year: 1890

page_text: Date of Application, 10th Apr., 1890
Complete Specification Left. 17th Dec., 1890-Accepted, 24th Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Lifting-pokers and Ring-rails of Spinning
Machines.
1, SAMUEL TWEEDALE, of Globe Works, Accrington, in the County of Lancaster,
Manager, do hereby declare the nature of this invention to be as follows:-
The lifting pokers as now used have a shoulder or collar near their upper end on
which the ring rails rest. Projecting beyond this shoulder is a cylindrical pivot or
stud that fits in a hole formed in the ring rail. These pivots or studs serve to keep
the rail in position.
Previous to this invention these round pivots on end of lifting pokers and the holes
in the ring rails have been made parallel in shape. Two or more pokers are used to
one ring rail. When the ring rails require lifting off for any purpose care has to be
used so that both ends of the ring rails are lifted equally or together.
If one end is lifted before or more than the other, the pivots bind in the holes of
the ring rails and in consequence the p.vot or stud is very liable to be bent or broken
thus causing delays, stoppage of the machine and loss of production.
To prevent damage or breakage with consequent loss as referred to make the pivots
or stud on the lifting pokers taper or cone shaped and the hole in the ring rail of
corresponding shape so that if one end of the ring rail should be lifted before the other
the taper of the pivot or stud prevents any binding or locking between the pivot or
stud and hole and thus frees itself without damage being done either to the pivot or
stud or to the ring rail.
Dated the 4th day of A 1000
WALTER
BRIERLEY,
Central Chambers, Halifax, Agent for the Applicant.
COMPLETE SPECIFICATION,
Improvements in the Lifting-pokers and Ring-rails of Spinning
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 statement :-
This invention relates to improvements in the lifting pokers, and ring rails of
spinning machines which as heretofore employed have been as follows:
-
The lifting pokers were constructed having a shoulder or collar near their upper
end on which the ring rail rested. Projecting beyond this shoulder was a cylindrical
pivot or stud fitting in a hole formed in the ring rail. These pivots or studs served to
keep the rail in position, and these round pivots or studs on end of lifting pokers and
the holes in the ring rails have been made parallel in shape and to one another, two or
more pokers being used to one ring rail.
When the ring rails require lifting off for any purpose great care had to be used so
that both ends of the ring rails were lifted equally or together.
If one end was lifted before or more than the other the pivots bind in the holes of
the ring rails and in consequence the pivot or stud is very liable to be bent or broken
thus causing delays or stoppage of the machine and loss of production.
According to this my said invention I make the pivots or studs on the lifting pokers
taper or cone shaped so that if one end of the ring rail should be lifted before the
other, the taper of the pivot or stud prevents any binding or locking between the pivot

page_text: or stud and the hole and frees itself without damage being done either to the pivot or
stud or to the ring rail.
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 in which :-
Fig. 1 is a front elevation of the top end of one of my improved lifting "pokers"
shewing a part of the ring rail in position thereon.
Fig. 2 is a similar view to Fig. 1 but shewing the ring rail in a tilted position
assumed when being carelessly removed.
Fig. 3 is a front or end elevation of part of lifting poker.
Fig. 4 is side elevation of Fig. 3.
Fig. 5 is an end or side sectional elevation of ring rail in position on the lifting
poker.
Fig. 6 is a plan view of ring rail and lifting poker in position.
Fig. 7 is a plan view of lifting poker.
Fig. 8 shews the cone and hole in the ring rail inverted.
The remaining fig. is a detail.
According to this my said invention I make the pivots or studs 1 of the lifting
pokers 2 taper or cone shaped, and the holes 3 in the ring rail 4 are also taper or cone
shaped corresponding with the pivots or studs 1 so that if one end of the ring rail 4 is
tilted or raised higher than the other in removing same from the pokers 2 there is no
strain put upon the pivots or studs 1 the taper or cone shape of the latter preventing
any binding or locking between the pivot or stud 1 and the inside of the hole 3 and
the ring rail can more readily be removed and replaced than heretofore.
I prefer the taper stud and hole arranged as above described but it is obvious the
parts may be inverted that is to say, the cone or taper plug may be cast or attached to
the top rail 4 whilst the conical hole 3 may be formed in the head of the poker 2 as
shewn in the drawings at Fig. 8.
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 :-
1st. The improvements in lifting "pokers" and ring rails of machines aforesaid
comprising a iaper or cone shaped pivot er stud, and a ring rail having a taper or
cone shaped hole as herein described and as illustrated by the annexed drawings
Figs. 1 to 7.
2nd. The taper or cone shaped pivots or studs 1 cast to or forming part of the ring
rail 4 and the taper or cone shaped hole 3 formed in the head of the poker 2 as herein
described and illustrated by Fig. 8.
Dated the 16th of D
SAMUEL TWEEDALE.
By his Agent, Walter Brierley,
Central Chambers, Halifax.