Improvements in Shuttles for Weaving.
Year: 1895

page_text: COMPLETE SPECIFICATION.
Improvements in Shuttles for Weaving.
I JOHANN FISCHER of Dolleren, Alsatia (German Empire), Shuttle Manu-
facturer, 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 shuttles as hitherto constructed, the spindle which is designed to receive the cop,
and which is capable of being raised or lowered as required, is retained in its close!
or horizontal position in the shuttle by means of a flat spring, which spring presses
against the flattened under-side of the spindle head. In order to fix this flat spring
in place, the shuttle is recessed vertically in rear of the spindle, and in this recess
cross pins are provided which hold the flat spring in position.
This construction of shuttle is shewn in Fig. 1 of the accompanying drawing, in
which is the spindle, the fulcrum pin of the same, c the flat spring, and d d the
pins for holding the latter in position. A fourth pin e serves as a stop for the head
of the turned-down spindle.
The disadvantages of this construction of shuttle are well known, and it only needs
to be remarked that the numerous pins frequently require repair, and thus shorten
the life of the shuttle; that the flat spring does not give a sufficiently secure hold
for the spindle; and that the recess in the rear of the spindle provides an escape for
the lubricant applied to the shuttle; thus occasioning the soiling of the fabric being
woven.
These disadvantages are remedied by the use of my improved shuttle, shewn at
Fig. 2, the merits claimed for which, are greater durability, less frequent need for
repairs, more secure holding of the bobbin spindle, and protection for the fabric against
being soiled in the manufacture.
In Fig. 2 it will be seen that there is only a single pin b, which pin carries the
spindle a; instead of the flat spring, a sliding bolt m is provided, controlled by a
spring n, which bolt lies in the prolonged axial line of the down-turned spindle a,
and is fitted in a circular cavity e of the body of the shuttle. The stem of the
bolt slides in a guide el formed in the body of the shuttle, and extending from the
inner end of the cavity e, whilst the head of the bolt is pressed against
the squared head o of the spindle by means of the helical spring n adapted
thereto.
This powerful spring maintains, through the pressure of the flat head of the
bolt m against the squared head o, the normal or depressed position of the
spindle in the shuttle, to a much greater extent than the flat springs hitherto
employed.
By this arrangement it will be seen that the necessity for perforating the shuttle
through its base, as when employing flat springs, in order to secure them in position,
is avoided, and consequently any falling of oil or grease used for lubricating the
spindle head on to the material being woven, is effectually prevented.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed declare that what I
claim is :-
The application to sbuttles of a sliding spring bolt for securing the shuttle

page_text: spindle in its depressed or normal position, such bolt being situated in the line of the
axis of the closed or turned-down spindle, and impelled forward in its guide in the
manner and for the purpose above set forth.
Dated this 16th day of January 1805
NEWTON & SON,
Agents for the Applicant.