Improvements in or relating to Loom Shuttles.
Year: 1893

page_text: Date of Application, 14th Oct., 1893
Complete Specification Left, 12th July, 1894-Accepted, 18th Aug., 1894
PROVIDIONAL
DE DUIFICATION.
Improvements in or relating to Loom Shuttles.
I, JOHN IRELAND, of Ireland's Lane, Dundee, in the County of Forfar, Scotland,
Shuttle and Machine Maker, do hereby declare the nature of this invention to be
as follows:-
--
This invention which relates to improvements in loom cop shuttles used in weaving
operations, has for its object the better regulation of the tension.
In carrying out my invention according to one modification, I introduce an
adjustable spring beneath a T-tension or a straight drag in order to give it elasticity,
such drags being in this manner held against guide rollers or pins with sufficient
force to give the required tension. In some cases guides may be used in combina-
tion with such drags. The head of the drag where the thread bears upon it may
be covered with enamel, and it may be made of any suitable material. The guide
roller and the thread exit hole is preferably of porcelain.
According to another modification the tension regulating apparatus may consist
of porcelain or metal guides or eyes, if of metal preferably enamelled, fitted into a
recess in the shuttle in such a way that one such can be easily withdrawn and
another substituted, should it be found necessary to alter the tension. These
thread guides may assume various forms, such as for example:-A passage through
the longitudinal axis of the guide leading the thread to, and then over a curved
protuberance and from thence to the exit hole, or a passage inclined at any suitable
angle leading the thread to the exit, or a combination of two or more holes through
which the thread passes before it arrives at such exit hole.
Dated this 12th day of October 1893.
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Loom Shuttles.
I, JOHN IRELAND, of Ireland's Lane, Dundee, in the County of Forfar, Scotland,
Shuttle and Machine Maker, 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 which relates to improvements in loom shuttles used in weaving
operations has for its object the better regulation of the tension.
And in order that my said invention and the manner of performing or carrying
the same into effect or practice may be properly understood, I have hereunto
appended two explanatory sheets of drawings in which the same reference letters
are used to indicate corresponding parts in all the figures where shown.
Figure 1. (Sheet 1.) is a plan of a shuttle with catch and part of spring cover
removed, to more clearly show my improvements, and Figure 2. is a longitudinal
section at A. A. (Figure 1.) of same.
Figures 3. and 4. (Sheet 2.) are detached views of the spring 20; Figures 5. and 6.
views of the tension 21 ; Figures 7. and 8. part views of the adjustable screw 24;
Figures 9. and 10. views of the supplementary spring 25; and Figure 11. a
part section, showing the springs depressed to allow of the screw being adjusted.

page_text: In carrying out my invention according to one modification, I introduce an
adjustable spring 20. beneath a T tension 21. or a straight drag, in order to
give it elasticity, such drags being in this manner held against guide rollers or
pins 22. with sufficient force to give the required tension. In some cases guides
may be used in combination with such drags. The head of the drag where the
thread bears upon it may be covered with enamel, and it may be made of
any suitable material. The guide roller 22. and the thread exit hole 23. are
preferably of porcelain. The adjusting screw 24. may be locked in any required
position by means of the spring 20. and the supplementary spring 25, engaging the
recessed head of the adjusting screw, as shewn in Figure 2.
The tension is regulated by the variation of the pressure of the T tension 21.
against the guide roller or pin 22, such variation of pressure being determined by
the spring 20. and the position of the adjusting screw 24.
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.) In loom shuttles, the construction, combination and arrangement of parts as
herein described in reference to, and shewn in the annexed drawings.
(2.) In loom shuttles, the combination of a T tension 21. with spring 20, adjusting
screw 24, and supplementary spring 25, substantially as herein described and shewn
in the annexed drawings.
(3.) In loom shuttles, the combination of a spring 20, with an adjusting screw 24.
and supplementary spring 25, substantially as herein described and shewn in the
annexed drawings.
(4.) In loom shuttles, the combination of a spring 20. with an adjusting screw 24,
substantially as herein described and shewn in the annexed drawings.
(5.) In loom shuttles, the mode of applying pressure by means of the spring 20. for
the purpose of regulating the tension of the thread, as described.
Dated this 6th day of July 1801
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicant.
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicant.