Improvements in or Applicable to the Construction and Action of the Swells of Power Looms.
Year: 1893

page_text: Date of Application, 2nd Oct., 1893-Accepted, 4th Nov., 1893
Improvements in or Applicable to the Construction and Action of
the Swells of Power Looms.
I, ROBERT SCOTT, of Craigmount, Tayport, in the County of Fife, Scotland,
Manufacturer, 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 or applicable to the construction and
action of the swells of power looms, its object being to enable the position and
elasticity of such swell to be readily adjusted.
My invention embraces improvements in the swells described and illustrated in a
previous Specification of mine, namely No. 2776, of 1893.
In order that my invention may be properly understood and readily carried into
effect, I have hereunto appended an explanatory sheet of drawings, in the several
figures of which corresponding parts are marked with the same numerals of
reference.
Figure 1. is a part plan of a loom lay, showing my improved swell in position;
Figure 2. is a plan, drawn to a larger scale, of the swell and its bracket ;
Figures 3. and 4. back and end views respectively of same, and
Figure 5. a plan of the bracket showing the elongated hole.
The improvements consist in forming the extremity 10. of the spring swell 11. in
a coil and attaching it to an adjustable stud 12. in the manner shown, that is to say
causing the first or inner coil to closely embrace the pin, securing it thereto by a
pin or bolt 13. passing twice through the band of the coil. The bracket 14. is
provided with an elongated hole 15. through which the stud 12. goes.
By means of these improvements, the swell can be adjusted in three different
ways.
1st. By fixing the bracket 14. nearer to, or further away from the centre of the
loom, the position of the knee 16. may be altered.
2nd. By altering the position of the stud 12. in the elongated hole 15. the position
of the knee 16. may be altered, and that in a direction at right angles to that
described previously.
3rd. By loosening the nut 17. and turning the stud 12. by means of a nut key
applied at 18, the elasticity of the spring swell may be modified.
The nut 17. is formed with either a right handed thread in the one case or a left
handed thread in the other, to prevent the stud slackening.
I wish it to be particularly understood that I do not limit myself to the precise
details of construction herein before described and illustrated on the annexed
drawings, but that I hold myself free to make such changes and alterations as
conform with the disposition and scope of my invention.
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 improvements in spring swells for power looms, substantially as herein-
before described and illustrated in the accompanying drawings.
(2) The combination of parts by means of which the various adjustments may be
carried out. as hereinbefore described.

page_text: (3) The method of attaching the spring swell to the adjustable stud as
described.
Dated this 27th day of September 1893.
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicant.