Improvements in Pirns or Pins and Bobbins.
Year: 1889

page_text: Date of Application, 12th Jan., 1889
Complete Specification Left, 12th Oct., 1889-Accepted, 16th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in Pirns or Pins and Bobbins.
I, JOSEPH LEES of 243 Cupar Street in the City of Belfast Winding Master do
hereby declare the nature of this invention to be as follows:-
In order to prevent the thread or yarn when in use, in a Shuttle, from shifting,
slipping or catching upon the Pirn, Pin or Bobbin on which it has been wound and to
diminish the consequent waste thereof I substitute for the rings or annular grooves
now usually cut round the Pirn, Pin or Bobbin, or for part or parts of such rings or
annular grooves, a spiral groove running in either direction or partly in both
directions.
Dated this 11th day of January 1889
HYNDMAN & DICKSON,
6, Waring Street, Belfast, Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Pirns or Pins and Bobbins.
I, JOSEPH LEES of 243 Cupar Street in the city of Belfast Winding Master, 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:
In order to prevent the thread or yarn when in use in a shuttle for weaving from
shifting slipping or catching upon the Pirn pin or Bobbin on which it has been
wound and to diminish the consequent waste thereof I substitute for the rings or
annular grooves now usually cut round the Pirn Pin or Bobbin or for some of such
rings or annular grooves a spiral groove running in either direction or spiral grooves
running in opposite directions.
I may, however, retain the rings or annular grooves upon the cone of the Pirn Pin
or Bobbin or some of them and cut a spiral groove over or through them.
I prefer to cut the spiral groove running with the spindle that is froin left to right
or what is mechanically termed a left handed thread or worm.
And in order that my said invention may be more fully understood I shall now
proceed to refer to the figures on the Sheet of Drawings hereunto annexed.
Fig. I. represents a Bobbin with a spiral groove cut from end to end so as to run
with the spindle and also a spiral groove cutting the conical portion of the Bobbin in
the opposite direction.
Fig. If represents a Bobbin with some of the rings or annular grooves retained on
the conical portion thereof and a spiral groove cut from near the apical end of the
cone along the remainder of the Bobbin so as to run with the spindle and
Fig. III. represents a Bobbin with a spiral groove cut from end to end so as to run
with the spindle.
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 use, in shuttles for weaving, of a Pirn Pin or Bobbin, arranged partly or
throughout with a spiral groove running in the direction of the spindle and employed
substantially in the manner and for the purposes hereinbefore described and shewn on
the drawings hereunto annexed.
2. The use, in shuttles for weaving, of a Pirn Pin or Bobbin arranged partly or

page_text: throughout with a spiral groove or spiral grooves and employed substantially in the
manner and for the purposes hereinbefore described and shewn in the drawings
hereunto annexed, and
3. The combination and arrangement of grooves constituting my improved Pirn
Pin or Bobbin constructed and employed substantially in the manner and for the
purposes hereinbefore described and illustrated by the drawings hereunto annexed.
Dated this 11th day of October 1889.
HYNDMAN & DICKSON,
6, Waring Street, Belfast, Agents for Applicant.