Improvements in Tension Weights for Loom Shuttles.
Year: 1889

page_text: COMPLETE SPECIFICATION.
Improvements in Tension Weights for Loom Shuttles.
I, JOHN CORRY FELL of the firm of Fell & Wilding, of 1 Queen Victoria Street,
in the City of London, Patent Agents, do hereby declare the nature of this invention
(a communication to me from abroad by Harold Kelly, of Biddeford, County of York,
State of Maine, United States of America, Machinist, and Melville H. Kelly, of Taco,
County of York, State of Maine, United States of America, Clerk) and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
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This invention relates to tension weights for shuttles, and is designed to secure a
uniform and perfect tension and one that may be automatically threaded. It consists
in a weight having one free end under which the thread is drawn before it passes out
through the eye of the shuttle, and also in having the said free end bevelled.
In the drawings herewith accompanying and making a part of this application,
Fig. 1. is a plan showing tension weight adjusted to the shuttle body; Fig. 2. is a
cross section on line 1-1; Fig. 3. is a view of tension weight and clasp; and same
letters refer to like parts.
In a shuttle, a, having spindle, b, and eye, i, made in any suitable style, is placed
a weight, c, under which the thread from the spindle is drawn before it passes out
through the eye. The tension weight, c, may be made in a variety of different styles,
and may be attached to the shuttle by a pivot or clasp f; but it must, in all cases,
have one free end which does not extend quite to the side of the shuttle, as shown
in Fig. 2. Inasmuch as wood wears rapidly, a metal plate may be set directly under
the weight, or the weight may be arranged in a case or clasp having a bottom, g,
and ears, h, in which case the thread passes between the said bottom, g, and the
bottom of the weight, as shown in Fig. 3.
In order that the tension weight may be self threading, the free end thereof
slopes downward from the top as seen at, d, and upward from the bottom as seen at, e.
The friction of the thread between the weight, c, and the bottom of the shuttle or
plate, g, as the case may be, gives a uniform tension. The tension is regulated by
using a lighter or heavier weight, as required. The tension weight threads itself
automatically, as follows; the thread from the spindle is placed over the inner end
of the shuttle eye, of course passing over the tension weight. It is then drawn
through the eye i, of the shuttle by suction or other means, and as it is drawn
taut, it will descend over the inclined face, d, of the weight, over the end thereof,
thence under the inclined bottom, e, and thence under the weight, c, to the position
shown in Fig. 1.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination with a shuttle body, of a tension weight pivoted at one
end within the shuttle body and having its free end bevelled, substantially as set
forth.
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"FELL & WILDING,
1, Queen Victoria Street, London, E.C., Agents for the Applicant.