Improvements in Apparatus for Driving the Spindles in Machinery for Spinning, Doubling, and Twisting.
Year: 1889

page_text: Date of Application, 28th June, 1889-Accepted, 3rd Aug., 1889
COMPLETE SPECIFICATION.
Improvements in Apparatus for Driving the Spindles in Machinery
for Spinning, Doubling, and Twisting.
We, CHARLES WILLIAM JONES, of the City of London, in the county of Middlesex,
produce dealer, THOMAS MILBURN, merchant, and ALFRED MACDOUGALL, barrister,
both of the City of Toronto, in the county of York, and all in the Province of
Ontario, in the Dominion of Canada, do hereby declare the nature of our invention
for IMPROVEMENTS IN APPARATUS FOR DRIVING THE SPINDLES IN MACHINERY FOR
SPINNING DOUBLING AND TWISTING, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
Our invention relates to machinery for spinning twisting doubling etc., fibrous
materials, and more especially to that class of such machinery in which the spindles
are driven from a central drum or cylinder by means of cords or bands.
The object of our invention is an improved automatic tightener or tension
regulator for the cording or banding driving the spindles and obtaining thereby
uniformity in the tightness of the spindle banding.
Fig. 1 is a partial cross section of a spinning machine, showing the automatic
tension regulator in position and the manner of threading the banding.
Fig. 2 is a top view of the same.
Fig. 3 is an elevation on a larger scale of the automatic tension regulator.
Fig. 4 is a top view of the same.
Fig. 5 is a cross section of the same on line x x figs. 3 and 4.
Fig. 6 is a cross section of the friction pulley, corresponding to the same part in
figs. 3 and 4; and
Fig. 7 shows a modification of the drum.
A is the framing of a spinning doubling or twisting machine, B the banding,
C the driving cylinder and D the spindles, having the wharves d, plain arrows
indicating the direction in which the various parts are running. The tension
regulator consists of a base E to which are bolted two brackets F. G is an axle or
shaft journaled in the brackets F and carrying the drum H which is journaled upon
and connected therewith by the coiled spring I, one end of which is fast to the
drum, the other to the axle or shaft G. One end, g, of the latter is threaded, or
otherwise-adapted to have a crank or key applied, by which the spring I may be
wound up and any desired initial tension or pressure given to it, tending to turn
the drum in the direction of the barbed arrow, a ratchet wheel G¹ being made
fast upon the shaft and geared with a detent G₁ pivoted at g" to the arm F,
pressed into gear by a spring G₁ and limited in motion by the pin G. The
drum H is limited to one turn or revolution by the pin h, which strikes the pro-
jecting ends of one of the arms F, a passage, in the form of a notch a, being
provided for the same at the rear end. Upon the face of the drum H a band or
strap J is secured, to the forward end of which is fastened the clevice & in which the
friction pulley K is journaled by conical bearings ³, the spindle banding B running
over said pulley.
In order to compensate for the variation in the tension of the spring I and to keep
said tension uniform in all relative positions of the drum H from the commencement
of its revolution or turning, when the stop J commences to uncoil, to the end of said
revolution, when the drum is stopped by the pin striking the arm on the opposite
side, and the strap J is entirely uncoiled and fully extended, a helical pulley H' is
attached to the side of the drum and a weight attached to it by a cord h¹ led over
a friction pulley 1. The weight co-operates and re-enforces the spring I variably
by acting upon the greater diameter of the helical pulley at the commencement of the
uncoiling of the spring when the tension is lowest and on the smallest diameter when

page_text: the strap J is fully uncoiled and the tension of the spring I has been increased by the
additional winding up. Instead of cord, weight and helical groove at the side of the
drum, the face of the latter itself, to which the strap J is attached, may be made of
variable diameter, i.e. helical, so that as the strap J is being uncoiled and the spring
tension increases the leverage of the drum becomes greater and the effect of the
spring weaker. This arrangement is shown in fig. 7.
A tension regulator as described is placed centrally in a row or series of spindles
all of which are driven by one continuous or endless cord or band B, threaded as
shown in figs. 1 and 2, guide pulleys D' being placed at the end of each row in order
to obtain continuity. The guide pulleys D', journaled in brackets d', may be sub-
stituted by extra spindles over the wharves of which the return course of the cord is
threaded. The regulator is placed opposite the driving cylinder on the framing A
and a special loop of the banding threaded through the clevice and over the pulley K.
The device operates by the spring exerting a steady tension and keeping the strap J
and cord or band B uniformly tight.
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 —
1. In spinning doubling and twisting machinery the combination of the cylinder C,
series of spindles D with wharves d, endless banding B threaded continuously over
guide pulleys, cylinder, spindle wharves, and regulator, guide pulleys D₁ at the
angles and the friction pulley K of the tension regulator, substantially as set
forth.
2. In a tension regulator for spinning doubling and twisting machinery, the com-
bination of a base E carrying brackets, the arms or brackets F secured to said base
and having the axle journaled therein, a drum H containing a spring tending to
turn the same upon its axle and limited in its rotation by a pin h, an axle or spindle
upon which said drum is journaled and connected by a spring and provided with a
ratchet wheel G¹ gearing in a spring detent G¹¹ secured to the bracket, or bearing in
which the axle is journaled, a strap J secured upon the face of said drum and
carrying a clevice k², friction pulley K journaled in said clovice, substantially as
set forth.
3. In a tension regulator for spinning doubling and twisting machinery a drum
journaled upon an axle and covering a spring coiled upon said shaft and connecting
it with the drum, said axles journaled in brackets and having means to apply a
crank or key for winding it and a ratchet wheel gearing in a spring detent, the
drum limited to one turn or revolution by a pin projecting from one side or end and
adapted to strike the forward end of the bracket or arm, a strip with clevice at the
end in which a friction pulley is journaled attached to the face of said drum so that
a pull thereon greater than the resistance of the coiled spring will turn said drum
against the resistance of said spring and the spring exert a steady tension upon said
strap, substantially as set forth.
4. In combination with an axle G journaled in brackets F and held thereto by
ratchet G and detent G spring I coiled upon said axle and connecting it to a
drum by which it is covered, a drum H having a helical rim or face of varying
diameter, and a strap J attached to said helical face, substantially as set forth.
Dated this Twenty sixth day of December A.D. 1000.
CHARLES W. JONES.
THOMAS
MILBURN.
ALFRED MACDOUGALL.
Per A. Harvey, their Attorney.
CHARLES W. JONES.
THOMAS MILBURN.
ALFRED MACDOUGALL.
Per A. Harvey, their Attorney.