IMPROVEMENTS IN SPINDLES FOR SPINNING MACHINES
Year: 1887

page_text: Date of Application, 18th Nov., 1887
Complete Left, 21st Mar., 1888
Complete Accepted, 27th Apr., 1888
We, JAMES HOGG and ALFRED HERBERT ROBINSON, of Lawrence, in the county
of Essex, and State of Massachusetts, gentlemen, do hereby declare the nature of
our invention for "IMPROVEMENTS IN SPINDLES FOR SPINNING MACHINES" to be as
follows:-
Our invention has relation to spinning spindles, and particularly to that class of
such device known as "dead spindles," consisting of a spindle or skewer, not movable,
on which the bobbin revolves to wind the yarn.
It is the object of our invention to provide improved means for regulating the
drag of the bobbin, in order to govern the degree of tension on the thread while it
is being wound on the bobbin.
Our invention consists in forming a screw thread on the lower end of the spindle
and screwing it into or through its base or support, so as to render it vertically
adjustable therein. The bobbin seat we make in the form of a frustum or cone, or
cup-shaped, or in the form of a frustum of a cone inverted, either of metal or other
suitable material with the sides covered with felt or similar material calculated to
effect a drag on the bobbin, or it may be made throughout of felt or the like; which
bobbin seat is secure to the upper end of the spindle support. The bobbin base we
make of a form corresponding on its interior surface to the exterior surface of the
bobbin seat, so that when the former is allowed to rest on the latter it will fit closely
thereover, and so be held by the drag or friction between the covering on the side of
the seat and the side of the base from being freely revolved thereon.
A plug, composed of some anti-friction metal or metaline is fixed in the upper end
of the metal tube which carries or supports the bobbin, and a hole having the form of
a frustum of a cone, inverted, is formed through said plug.
The upper end of the spindle is reduced in diameter with a downwardly sloping
shoulder below such reduced part, and said reduced part is extended through the hole
formed in the plug so that the latter will rest on the inclined shoulder aforesaid of.
the spindle.

page_text: We sometimes give the upper end of the spindle the form of a cone, and extend
it through a hole having parallel sides, formed in the plug of the bobbin, the construc-
tions at this point being for the purpose of making the bearing between the spindle
and plug as narrow as possible.
With this construction the drag of the bobbin can readily be regulated by screwing
the spindle up or down in its support. For example, the spindle may be turned up so
as to lift the bobbin base entirely off from its seat, and make the bearing for the
bobbin dependent entirely upon the contact of the plug in the upper end of the
bobbin with the inclined shoulder formed on the upper end of the spindle, so that
the bobbin may turn on the spindle with the least possible friction; or the spindle
may be screwed down so as to let the bobbin rest with its entire weight on its seat,
and so aggravate the drag or friction to as great an extent as may be found necessary
in the use of the invention.

page_text: We, JAMES HOGG, and ALFRED HERBERT ROBINSON, both of Lawrence, in the
County of Essex and State of Massachusetts, gentlemen, do hereby declare the
nature of our invention for "IMPROVEMENTS IN SPINDLES FOR SPINNING
MACHINES," and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
Our invention has relation to spinning spindles, and particularly to that class of
such devices known as "dead spindles," consisting of a spindle or skewer, not
movable, on which the bobbin revolves to wind the yarn.
It is the object of our invention to provide improved means for regulating the drag
of the bobbin, in order to govern the degree of tension on the thread while it is being
wound on the bobbin.
Our invention consists in forming a screw-thread on the lower end of the spindle
and screwing it into or through its base or support, so as to render it vertically
adjustable therein. The bobbin-seat or seat for the bobbin-carrying-tube we make
in the form of a frustum of a cone, or cup-shaped, or in the form of a frustum of a
cone inverted, either of metal or other suitable material with the sides covered with
felt or similar material calculated to effect a drag on the bobbin, or it may be made
throughout of felt or the like; which seat for the bobbin or bobbin-carrying-tube is
secured to the upper end of the spindle support. The bobbin-base we make of a
form corresponding on its interior surface to the exterior surface of the bobbin-seat,
Bo that when the former is allowed to rest on the latter it will fit closely thereover or
therein, and so be held by the drag or friction between the covering on the side of the
seat and the side of the base from being freely revolved thereon.
A plug, composed of some antifriction metal or metaline, is fixed in the upper end
of the metal tube which carries or supports the bobbin, and a hole having the form
of a frustum of a cone, inverted, is formed through said plug.
The upper end of the spindle is reduced in diameter with a downwardly sloping
shoulder below such reduced part, and said reduced part is extended through the hole
formed in the plug in the bobbin carrying tube, so that the latter will rest on the
inclined shoulder aforesaid of the spindle.
We sometimes give the upper end of the spindle the form of a cone, and extend it
through a hole, having parallel sides, formed in the plug of the bobbin carrying tube,
the constructions at this point being for the purpose of making the bearing between
the spindle and the plug as narrow as possible.
With this construction the drag of the bobbin, which is carried by the tube and
rotates with it, can readily be regulated by screwing the spindle up or down in its
support. For example, the spindle may be turned up so as to lift the bobbin carrying
tube entirely off from its base or seat, and make the bearing for said tube dependent
entirely upon the contact of the plug in the upper end thereof with the inclined

page_text: shoulder formed on the upper end of the spindle, so that the bobbin and its carrying
tube may turn on the spindle with the least possible friction; or the spindle may be
screwed down so as to let the bobbin and bobbin carrying tube rest with their entire
weight on their seat, and so aggravate the drag or friction to as great an extent as
may be found necessary in the use of the invention.
That our invention may be more fully and clearly understood, we will now proceed
to describe the same with reference to the accompanying drawing, and to the letters
of reference marked thereon, forming a part of this specification, the same letters
designating the same parts wherever they occur.
Of the said drawings, Figure 1 represents a longitudinal vertical section of the
device mentioned embodying our improvements. Fig. 2 represents a view similar to
Fig. 1, showing a slightly modified form of the spindle support and means for adjusting
the spindle vertically. Fig. 3 represents a sectional detail view of the spindle, the
bobbin carrying tube and support therefor.
In the drawing, a designates the lifter plate or rail of usual or suitable form, to
which the spindle support, b, is properly secured or connected. In Fig. 1 we have
shown the spindle support 6 as forming an integral part of the plate or rail a, and in
Fig. 2 the support b is shown as screwed into the plate or rail, so that a shoulder or
offset, c, with which said support is provided at its lower end rests against the lower
face of the plate or rail, and a locking nut, d, is screwed upon the support b and
turned down on the upper face of the rail, by which means the support b is maintained
firmly in position. Other suitable means for securing the spindle support 6 on the
rail a may be provided.
The spindles extends through the support 6 and has a screw-thread connection
therewith which permits of its adjustment vertically with its support, and to facilitate
screwing the spindle up and down therein, we provide the latter on its lower end with
a round thumb-nut or polygonal screw-head, e, and turn a check-nut f on the spindle
to be screwed up against the lower face of the spindle support b, as shown in figures 1
and 2.
the
The upper end of the spindle support 6 is made in the form of a frustum of a cone
and constitutes the seat, g, for the bobbin (not shown) or bobbin supporting tube h,
the base, i, of which, conversely, corresponds in form to the form of the seat
latter having its sides preferably covered with a strip or washer, j, of felt or similar
material. The construction or form and relationship of the seat g and base i of the
bobbin supporting tube are such that when the latter is allowed to rest on the former
it will fit closely thereover, and be held by the drag or friction between the seat
and the base as that the bobbin supporting tube will be retarded in an effort to
rotate it.
A plug, k, preferably composed of antifriction metal or metaline, is fixed in the
upper end of the bobbin supporting tube and a hole or opening having the form of a
frustam of a cone inverted is made through said plug. See Figures 1 and 2.
The upper end of the spindles is reduced in diameter, as indicated at 1, and is
provided with a downwardly sloping offset or shoulder, m, the reduced part / extending
through the hole formed in the plug k, and the construction and arrangement at this
point being such that the bobbin supporting tube will have a very narrow bearing
surface on the spindle, so that by adjusting the spindle vertically the drag or frictional
resistance between the base i and seat 9 can be regulated or varied so as to vary the
tension on the thread while being wound on the bobbin, or the spindle can be raised -
so as to lift the bobbin supporting and carrying tube entirely off from its seat.g
and have said tube carried entirely by the plug k bearing on the shoulder m.
The bobbin carrying tube is provided with the usual pins or lugs, n, which engage
the bobbin so as to carry it around with the tube.
Instead of constructing the base of the bobbin supporting tube and seat for said
base as described, the seat g may be made cup-shaped and the base made in the form
of a frustum of a cone inverted, as shown in Fig. 3; and instead of forming the
upper end of the spindle and bobbin supporting tube in the manner shown in figures 1
and 2, and hereinbefore particularly described, said parts may be constructed. ass

page_text: shown in Fig. 3, in which the upper end of the spindle is made conical in form, as
designated by n, and said conically shaped end extended into a hole formed in the
upper end of the tube or in a plug set therein.
Other changes may be made in the form and arrangement of parts composing our
invention without departing from the nature or spirit thereof.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we wish it understood
that we claim :-
1. A spindle support provided with a seat for the bobbin supporting tube, a
spindle vertically adjustable in its support, and a bobbin carrying tube having a
base conformning to the seat of the spindle support, and resting at its upper end on
the upper end of the spindle, combined and operating substantially as set forth.
2. A vertically adjustable spindle, a bobbin carrying tube adapted at its upper end
to be engaged by the upper end of the spindle, and provided at its lower end with a
base, a seat for the base of the bobbin carrying tube, and frictional material inter-
mediate of the base of the bobbin carrying tube and its seat, combined and operating
substantially as set forth.
3. A vertically adjustable spindle, provided at its upper end with an inclined
shoulder or offset, combined with a bobbin carrying tube provided in its upper end
with a plug of antifriction metal and having a hole formed in said plug, the latter
resting on the inclined shoulder of the spindle, the point or upper end of which
extends into the hole in the plug, substantially as set forth.
4. A vertically adjustable spindle, a bobbin carrying tube thereon, an inclined seat
for the bobbin carrying tube provided with frictional material, the bobbin being
provided with a base conforming to the form of the seat, combined and operating
substantially as set forth.