Improvements in Bobbins and Pirns for Spinning Yarns.
Year: 1897

page_text: . PROVISIONAL SPECIFICATION.
Improvements in Bobbins and Pirns for Spinning Yarns.
I, ARCHIBALD WILSON, of Doagh, in the County of. Antrim, in Ireland, Flax
Spinner, do hereby declare the nature of this invention to be as follows:-
My invention relates to the fitting of bobbins and pirns to the blades of the
spindles on which they are carried as employed in the spinning of yarns and also
to counteracting the effects produced by their expansion and contraction from wet
and heat and diminishing the waste due to wear and tear.
For these purposes I enlarge the bore of such bobbins and pirns and fix in each
end thereof a bushing of metal arranged to fit the spindle blade and to rotate free
upon it.
T T
1007
HUGH HYNDMAN,
6, Chichester Street, Belfast, Agent for Applicant.
Improvements in Bobbins and Pirns for Spinning Yarns.
I, ARCHIBALD WILSON, of Doagh, in the County of Antrim, in Ireland, Flax
Spinner, 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 the fitting of bobbins and pirns to the blades of the
spindles on which they are carried as employed in the spinning of yarns and also
to counteracting the effects produced by the expansion and contraction of such
bobbins or pirns from the wet and heat to which they are exposed and to diminishing
the waste due to wear and tear of the same.
For these purposes I enlarge the bore of such bobbins or pirns at each end
thereof and fix therein a bushing of metal arranged to fit the spindle blade and to
rotate free upon it.
And in order that my said invention may be more fully understood I shall
now proceed to refer to the drawings on the sheet hereunto annexed the same
letters of reference indicating the same parts of my improved bobbin or pirn
throughout all the figures.
Fig. I represents a bobbin having the ordinary external appearance.
Fig. II is a diametrical section of the bobbin represented in Fig. I and shows
the enlarged bore at each of the ends with a bushing therein.

page_text: Fig. III is a plan of the bottom or projecting rim or ridge at the base of the
bobbin, and
Fig. IV is a cross section on the line A, B in Fig. II.
a is the barrel of a bobbin or pirn; b is the head of the barrel, a; c is the
bottom of the barrel, a, and grooved round its periphery to receive the drag band
as ordinarily arranged; and d is the enlarged bore at each end of the bobbin
or pirn provided with a bushing of metal, e, arranged to fit the spindle blade and
to rotate free upon it whereby the vibration of the bobbin or pirn is almost entirely
prevented and the bore is not injuriously widened by friction with the blade
spindle before the bobbin or pirn is worn out.
the
Having now fully described and ascertained the nature of my said
invention and in what manner the same may be performed I would have it to
be understood that I do not claim as of my invention nor the exclusive use of
bobbins or pirns or of bushings except when the same are constructed and employed
as hereinbefore described but I claim:-
1. The use in spinning frames of a bobbin or pirn arranged with a metal bushing
and employed substantially in the manner and for the purposes hereinbefore
described as shewn in the drawings hereunto annexed, and
2. The combination and arrangement of parts constituting my improved bobbin
or pirn constructed and employed substantially in the manner and for the purposes
herein before described and illustrated by the drawings hereunto annexed.
Dated this 20th day of Anil 1898
HUGH HYNDMAN,
6, Chichester Street, Belfast, Agent for Applicant.