Improvements in or relating to the Spindles and Bobbins of Spinning Machinery.
Year: 1897

page_text: Date of Application, 16th Mar., 1897-Accepted, 17th Apr., 1897
COMPLETE SPECIFICATION.
Improvements in or relating to the Spindles and Bobbins of
Spinning Machinery.
We, OLIVER CROMWELL BURK, of North Adams, in the County of Berkshire,
and State of Massachusetts, U.S.A. Spinning Mill Boss, and WALDO LOREN
CURTISS, of Winsted, in the County of Litchfield, and State of Connecticut, U.S.A.,
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 consists in the combination with a spinuing spindle and. bobbin of
ordinary construction, of a bobbin holder and a thread holder which is upon the
spindle, one or more of the parts thereof, being movable, a spring encircling
the spindle to move one of the parts. of the thread holder towards a fixed part
thereof, said part being moved against the action of the spring when the bobbin is
pressed down on the spindle so as to effect the separation of the parts between
which the thread is grasped, the bobbin holder being positioned on the spindle
above the thread holder so that the parts together provide a combined or co-acting
bobbin holder and thread holder, the function of the latter being to hold the end
of the thread when the bobbin is doffed, and release it when the bobbin is forced
downward upon the spindle and bobbin holder, whereby a saving of time is effected
and an accumulation of thread upon the spindle below the bobbin is avoided.
The invention further relates to the construction of the parts carried by the
spindle, namely-a bobbin holder which engages the bore of the bobbin;:a thread
holder having separable parts, between which the thread is grasped, a spring for
moving a part of the thread holder when the bobbin is raised on the spindle, and
means or parts which are actuated by the depression of the bobbin on the spindle
to separate the parts hetween which the thread is held.
In the accompanying drawings-
Figure 1, is a vertical section showing a bobbin and thread holder which
embodies the invention applied to a spindle, the bobbin being shown in a position
to effect the separation of the thread grasping members or plates of the thread
holder.
Figure 2, is a vertical section showing the bobbin raised on a spindle having the
invention applied thereto.
Figures 3, and 4, are detail perspective views of the parts which are attached
to the spindle.
Figure 5, is a vertical section of a modification of the invention.
Referring to the drawings and letters of reference thereon A, designates a
bobbin, and B the spindle.
Upon the spindle is secured the thread holder which consists of a fixed annular
plate.. D with apertures through which pass pins d carried by a similar annular
plate E, which is movable on the spindle, and is normally held in contact with
the plate D by a helical spring F, which encircles the spindle. The pins d engage
with a plate or washer G positioned on the spindle above the other parts so as to
be nearest the bobbin holder. The plate or washer G being the part of the thread
holder which is actuated by the depression of the bobbin on the spindle to move

page_text: the annular plate E away from the fixed plate D so that the thread may be held.
between them prior to doffing the bobbin.
The plate or washer G preferably has its upper portion rounded as shown in
Figures 1, 2, and 3 of the drawings, though a flat washer as shown in Figure 5,
may be used when the thread holder is operated solely by the bobbin, and in such
instance the spring is mounted on the spindle below the movable plate, and a bobbin
holder of a different type from that shown in the other figures of the drawings
may be used, the one illustrated consisting of a cork sleeve b which is retained on
the spindle by wire coils a a.
The thread holder shown in the drawings other than Figure 5, is provided with
a ring H which is carried by the fixed plate D and partially encloses the spring,
the function of the same being to prevent the thread becoming entangled with the
spring, and to limit the movement of the plate E, away from the fixed plate.
a
A preferred form of bobbin holder, and one which moves the thread holder
against the action of the spring thereof, is shown in the figures of the drawing
other than Figure 5, and the same is made up of two parts, one part !, being
conical frustum of cork which is carried by the spindle a suitable distance above
the thread holder, and over the same is placed a sleeve or metal tube K with
diverging arms L, the ends of said arms being rounded. A bobbin holder con-
sisting of a conical frustum, and sleeve with arms can be adjusted by moving
either of the parts so as to vary the pressure of the arms against the bore of the
bobbin.
The position of the bobbin holder upon the spindle with relation to the thread
holder is such that the lower ends of the arms L will bear lightly upon the rounded
surface of the upper plate G so that when the bobbin is forced downwardly, the
arms of the bobbin holder will be moved towards the spindle and will by engage-
ment with the plate G force it downward to effect the separation of the annular
plate E from the fixed plate D so that the end of the thread may be placed between
them, and when the bobbin is raised, the plate E will be forced by the spring
against the fixed plate to hold the thread.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1st. A spindle having an annular plate attached thereto, a similar plate movably
mounted on the spindle, a spring to hold the movable plate against the immovable
one, and means as shown engaged by the bobbin when placed on the spin lie to
separate the movable plate from the plate attached to the spindle, or against the
movement imparted thereto by the spring.
2nd. In a bobbin and thread holder for spindles, the combination of the bobbin
holder, adapted when engaged by the bobbin to actuate the thread holder to
separate the parts between which the thread is held and a spring to move the parts
together when the bobbin is raised.
3rd. In combination with a bobbin holder having arms which are moved towards
the spindle when engaged by the bobbin, of a thread holder comprising a part
which is fixedly attached to the spindle, movable parts above and below the fixed
part, a spring which encircles the spindle and engages with a movable part of the
thread holder to hold the parts of the thread holder in engagement with each other
to hold the thread when the bobbin is raised on the spindle."
4th. A thread holder for spinning spindles comprising an annular plate fixedly
attached to the spindle, an annular plate movably mounted on the spindle adjacent
thereto and provided with pins which pass through the fixed plate, a spring for
forcing the movable plate towards the fixed plate, said pins engaging with a second
movable plate, so that when the bobbin is forced upon the spindle, the spring will
be compressed and the first mentioned movable plate will be separated from the
fixed plate so that an end of the thread may be placed between said plates, and will
be held thereby when the bobbin is raised to remove it from the spindle.

page_text: 5th. A bobbin holder for spindles consisting of a tube or sleeve having diverging-
arms, and a truncated section carried by the spindle to engage with the arms at a
point above their lower ends, to force the arms in contact with the bore of the
bobbin.
Dated this 15th day of March 1897.
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicants.