Year: 1886

page_text: C
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex do hereby declare the nature of
this invention and in what manner the same is to be perforined, to be particularly
described and ascertained in and by the following statement:-
My present invention is designed as an improvement on the loom shuttle shown
in Figures 3 and 4 of the drawing accompanying this specification, and it consists
in a novel construction and arrangement of the parts as hereinafter set forth, the
object being to produce a more desirable and effective article of this character than
is now in ordinary use.
In the accompanying drawing
Figure 1 is a vertical longitudinal section of my improved shuttle, the spindle
being represented as closed, expanded and locked.
Figure 2 is a like view, the spindle being represented as elevated, collapsed and
unlocked.
Figure 3 is an enlarged vertical longitudinal section.showing a portion of a
shuttle provided with a locking device on which my present invention is an
improvement, the spindle being represented as closed; and
Figure 4 a like view showing the spindle opened.
Like letters of reference indicate corresponding parts in the different figures of
the drawings.
.
The nature and operation of the improvement will be readily understood by all
conversant with such matters from the following explanation.
A represents the body and B the spindle of the shuttle.
The body is of the ordinary form and construction, except as hereinafter set
forth.

page_text: Ine spinale is spit or provided with a spring, on supper, the
body of the spindle being integral or welded together at their outer ends to form
the point x.
The body of the spindle is provided with an offset as shown at m, by which it is
elevated above the plane of its shaúk & which is pivotted in the body of the shuttle
at v, and elongated as shown at b.
The shank of the spindle is provided on its upper side between the offset m, and
pivot v, with a depression t.
The free or rear end of the spring C is irregular in form being bent or curved
downwardly to form the elbow i; upwardly to form the elbow k, and elongated and
inclined downwardly to form the auxiliary spring a.
A projection for engaging the elbows of the spring is arranged in the body, and
consists preferably of a small anti-friction roller r, which is journalled horizontally
in said body at a point nearly above the pivot v; and passing through said body
beneath the offset m, there is a pin or stop h, on which the spindle rests when
closed; this stop may, however, be omitted and the elongated portion 6 of the
shank & permitted to strike a shoulder f, formed in the body of the shuttle to stop
the spindle, if preferred.
In the use of my improvement when the spindle is oponed as shown in Figure 2,
for the purpose of doffing the shuttle, or putting on a filled cop or bobbin, the
roller r,
falls into the bend of the elbow i, on the spring C, and thereby locks or
holds the spindle in an elevated position, the expansive action of said spring
keeping it in forcible contact with said roller.
After the bobbin or cop has been placed on the spindle, the spindle is depressed,
causing the roller to ride upwardly over the elbow k, and force the spring C,
down onto the body of the spindle at w, and the auxiliary spring a, down onto the
tail or projecting portion b, of the shank d, thereby expanding the spindle to
secure the cop or bobbin and locking it closed in a manner which will be readily
obvious without a more explicit description.
The distance between the lower side of the roller r, and upper side of the
shank d, is less than the height of the elbow kc, and as the spindle is depressed and
the spring C, drawn forward, said spring will be brought to bear on the band in
the spindle at w, and the auxiliary spring a, forced down onto the shank d, and as
said elbow passes under the roller the auxiliary spring a will be compressed and
the spring C tilted, the bend w, serving as a fulcrum, thereby expanding the body
of said spring within the cop or bobbin and securing the same on the spindle.
The elbow is also so arranged or disposed on the spring C, that when the
spindle is closed as shown in Figure 1, the apex or extreme upper portion of said
elbow will stand forward of the axial line of the roller r, the auxiliary spring a,
yielding to permit the elbow to pass the roller and acting expansively to force it
upwardly after it has passed and thereby lock the spindle when closed.
In the shuttle shown in Figures 3 and 4 the spindle B, is pivoted in the body A,
and provided 'with a spring C, in substantially the same manner as shown in
Figures 1 and 2; but the spring is not elongated to form an auxiliary spring, the
elbow, being kept in contact with the roller by a rubber cushion D interposed
between the elbow and shank of the spindle.
But the cushion D is liable to become detached and lost; also to soften and lose
its elasticity when brought into contact with oil, and is more expensive than the
auxiliary spring a.
It will be understood that the ordinary spindle-spring may be used with my
improved shuttle if desired, being attached to the body A at 2, and arranged to
press on the bottom of the shank d, in the usual manner, as shown in Figure 1.
The cavity or depression t, is designed to prevent the elbow i, from coming into
contact with the shank d, and may be omitted by lengthening the offset m.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed as communicated to
ine by my Foreign Correspondent, I declare that what I claim is :-
.
First. The body A, provided with the roller r, and the pivotted spindle B, having
the spring C, provided with the elbows ik, and auxiliary spring a, constructed,
combined and arranged to operate substantially as described.
Second. The spring C, elongated to form the auxiliary spring a, and provided
with oppositely bent elbows i, k, in combination with the pivoted spindle B,
body A, and means for compressing the spring a, locking the spindle when opened
and closed, and expanding the spring C, to secure the cop or bobbin on the spindle
substantially as set forth.