Year: 1898

page_text: I, THOMAS MITCHELL, Spinner, of 25, Galabank Street, Galashiels, Selkirkshire,
do hereby declare the nature of my invention to be as follows:-
This invention has reference to improvements in and relating to attachments
for holding the pirns in the shuttles of looms.
According to my improvements the skewer or spindle of shuttle is formed with
a longitudinal open central space for a lever to work in, and a groove or notch
is formed in the central or boss space of pirn for the hooked or projecting end
of lever to engage in. The opposite or fulerumed end of lever is formed with a
square cornered or projecting surface, so that when the pirn is going down in
shuttle one of the corners of this end of lever projects out, but by coming in
contact with the side of seat or a stop is removed or oscillated back on its ful-
crum to bring the opposite or hooked end of lever into the groove or recess of
pirn and secure same therein. When withdrawing the pirn from shuttle, the
opposite corner of lever head projects out and coming in contact with a part of
seat at opposite side, is tilted or oscillated in the reverse direction to remove the
hooked end of lever out of recess and thus free the pirn.
By a modified arrangement the skewer or spindle of shuttle is preferably formed
of square headed shape and is fulcrumed to swivel or hinge on a transverse pin
at its one end in a slit near end of shuttle, and a longitudinal open central space
The
is formed in skewer for the lever fulcrumed on the same axis to work in.
pirn is placed on and removed from spindle when the latter is swivelled out from
hollow body of shuttle, and when the spindle is swivelled within shuttle, the
fulcrumed end of lever comes against a stop pin which swivels its other, end for
hook
to enter
or projection on
a groove
in the central
therein.
boss space of pirn to
or
secure
When withdrawing the pirn from spindle, the latter is swivelled out.
from shuttle, and the opposite side of lever head projects out and coming in con-
tact with a stop projection, is tilted or oscillated in the reverse direction to
remove the hooked end of lever out of recess in pirn and thus free the latter.
A blade spring is fitted behind the head of spindle in the recess formed in
shuttle.
at
same
Tan Lat love of Wah 1808
or
the
notch
samme
formed

page_text: Improvements in and relating to Lcom Shuttle Attachments.
I, THOMAS MITCHELL, Spinner, of 25, Galabank Street, Galashiels, Selkirkshire,
do hereby declare the nature of my invention and in what manner the same is
to be performed to be particularly described and ascertained in and by the
following statement, that is to say:--
This invention has reference to improvements in and relating to attachments
for holding the pirns in the shuttles of looms.
And in order that my said invention and the manner of carrying same into
practice may be properly understood I have hereunto appended an explanatory
sheet of drawings in which Figure is an elevation partly in section showing the
skewer and lever in their swivelled in position inside the shuttle, and in dotted
lines in their swivelled out position, while Figure 2 is detached plan view of
the skewer and lever.
Referring to these drawings;
According to my improvements the skewer or spindle a of shuttle A is formed
with a longitudinal open central space a for a lever b to work in, and a groove
or notch is formed in the central or boss space of pirn for the hooked or pro-
jecting end of lever to engage in.
The spindle a is. preferably formed of square headed shape and is fulcrumed
to swivel or hinge on a transverse pin at its one end in a slit near end of
shuttle A and the lever is fulcrumed on the same axis. The pirn is placed on
and removed from spindle a when the latter is swivelled out from hollow body
of shuttle as shown in dotted lines in Figure 1 and when the spindle « is
swivelled within. shuttle as shown in full lines in said figure the fulcrumed
end of lever b comes against a stop pin el which swivels its other end for the
hook or projection on same to enter a groove or notch formed in the central or
boss space of pirn to secure the same therein. When withdrawing the pirn from
spindle a the latter is swivelled out from shuttle as shown in dotted lines in
Figure 1 and the opposite side of lever head 2 projects out and coming in con-
tact with the stop projection 2 is tilted or oscillated in the reverse direction to
remove or lower the hooked end ¹ of lever out of recess, in pirn ; and, thus, free
the latter.
"
A blade spring d is fitted behind the head a² of spindle a in the recess formed
in shuttle.
1.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
-
1.
1.
4
"'
First. An attachment for holding the pirns in the shuttles of looms constructed
and working in the manner herein set forth.
Second. In. loom shuttle attachments a hinged or swivelling skewer formed with
a central open space in combination with a lever working therein substantially as
and for the purposes herein set forth.
Dated the 31st day of October 1900
:
W R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.