IMPROVEMENTS IN TAKE UP MECHANISM FOR LOOMS
Year: 1885

page_text: COMILLIL
DIECIFICATION.
I, WILLIAM PHILLIPS THOMPSON, Fel Inst P. A of the Agency for Foreign
Patent Solicitors, 6 Lord Street, Liverpool in the County of Lancaster, and
323 High Holborn in the County of Middlesex, Civil Engineer, do hereby declare
the nature of the said invention for "IMPROVEMENTS IN TAKE UP MECHANISM
FOR LOOMS, (a communication from abroad by Friedrich Kesselring of Athenia in
the state of New Jersey, United States of America, Inventor) and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :―
The invention consists of novel take-up mechanism.
Figure 1 is a front view of the lower part of a loom embodying the invention.
Figure 2 is a side view of the same portion of the loom with certain parts
broken away and certain parts represented in section.
Figures 3 and 4 are detail views.
Figures 5 and 6 are sectional views of details.
Similar letters of reference indicate corresponding parts in the several figures.
Referring to the drawings:
A represents the frame of the loom, the upper part being supported by columns B
which rest upon the lower part of the frame."
M represents a drum or cylinder on which the cloth or fabric is wound. To this
shaft or cylinder is secured a worm wheel M¹ with which engages a worm M" on
an upright shaft M
A collar N is fitted loosely to the lower part of the shaft M and carries a
pawl P which engages with a ratchet wheel Q the latter being firmly locked o
the shaft Mat its lower end. Said shaft is firmly mounted in the frame A. at
its lower and upper ends. It is surmounted by a handle M* as shown in Figure 2.
The pawl P is shown in detail in Figure 5. It has three teeth having the
necessary play up and down independently of each other. These teeth are one
behind the other and are arranged as shown in Figure 5 at a little greater distance
apart than are the teeth of the ratchet wheel Q, any one of them taking against a
tooth of the ratchet wheel will turn it when motion is given in the proper direction
to the pawl. Thus the effect of a much finer ratchet is attained while the teeth

page_text: are still large enough to be firmly taken against by the pawl and so to transmit
the power required without danger of the pawl slipping off. The number of these
teeth may of course be increased as desired.
To the collar N is connected a hooked arm R, the hook of which is adapted to
be taken against by an arm or part R of the lay on the backward stroke of the
latter if the hook lies in its path, whereby rotary motion is imparted to said
collar N in one direction. The motion in the opposite direction is occasioned by
an arm S which is connected with one of the supporting arms S1 of the reed
frame S, the latter being supported by means of the said arms S" secured on the
supporting shaft S7 and held in position by a torsional spring S. Equivalent
means may be used in lieu of the spring Su for holding the reed frame in
position.
The torsional spring S which holds the reed frame in its normal position it is
preferred to provide with a ratchet and pawl, the object whereof is to adjust the
tension of said spring. This is shown in Figures 3 and 4 which are detail views
of the torsional spring S1 and connected parts. S111 is the square torsional spring.
Oue end is seated in a square recess in the plug S which plug is mounted in the
frame of the lay S and held fast by the pawl S taking into the teeth of a
ratchet S mounted and keyed fast on the plug and held fast by the pawl in any
position to which it may be initially turned, this giving the initial tension to the
spring. The other end of the spring S is seated in a square recess in the body of
the partly tubular shaft S7 (which is partly solid for that purpose) which shaft S7
is mounted as a sleeve on the plug S at one end and has a reduced portion fitting
in the frame of the lay at the other end, and which shaft carries securely locked on
it, the arms S" and they carry the reed frame S. To one of the arms Su is
securely fastened the arm S as shown in Figure 2.
The lay, pivoted at the base of the loom is driven in the well known way from
the shaft E by means of the crank E, the link E³ and the rigid arm E of the lay.
As the lay moves forward and beats up, the reed frame is caused to yield owing
to its pivotal connection with the lay and motion is imparted to the arm S. This
engages with a stud or projection R₁ on the arm R shown in section in Figure 6
and rotates the collar N whereby the pawl is moved over the ratchet into position
to engage with and turn the latter on the return motion of the arm R occasioned
by an arm or part R" of the lay engaging with the hook of the arm R.
The rotation of the ratchet Q is imparted to the shaft M1 and worin M
whereby the cylinder or cloth beam M is rotated and the cloth or fabric
consequently wound thereon.
The rate of this rotation will manifestly depend entirely upon the distance to
which the stud or projection R' on the arm R is thrown forward by engaging with
the arm S at each beat of the lay, (the said stud being first properly adjusted as to
its distance from the hook of the arm R); and this will depend upon the resistance
offered by the fabric to the forward motion of the reed frame increasing as that
increases and diminishing as that diminishes. The rate of the take-up motion is
thus automatically determined by the ability or inability of the reed frame to
make its full stroke in beating up.
By the arrangement for attaining that end the reed frame is controlled by one
single spring, not by two separate springs as heretofore, and that single spring is
adjustable whereby the fabric is evenly battened up across the entire width of the
goods and with a compactness that can be regulated at will.
The improved take-up motion also possesses the advantage that there can be no
backward motion of the cloth beam, and that without a special locking device the
worm M readily operating the worm wheel M¹, but the worm wheel being unable
to operate the worm. Thus the strain of the fabric is held by the frame of the
machine.
Moreover the entire take-up motion is a positive motion, its extent only being
determined by and depending upon the reed frame.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. The combination of the cloth beam M, worm wheel M¹, worm M", shaft M¹¹1,
ratchet wheel Q, pawl P, collar N, and hooked arm R having stud R', with the lay
and reed frame of a loom, the reed frame being pivoted on the lay and having a
device to hold it in position and an arm S adapted to take against the stud R' and
the lay being adapted to take against the hook of the arm R, substantially as and
for the purposes set forth.
2. The combination of the cloth beam M, worm wheel M¹, worm M¹¹, shaft M¹¹¹,
ratchet wheel Q, pawl P, collar N, and hooked arm R having stud R¹, with the
lay and reed frame of a loom, the arms S", tube S7, torsional spring S1, plug S*
and the arm S, substantially as and for the purposes set forth.
3. The combination of the cloth beam M, worm wheel M', worm M¹¹, shaft MI,
ratchet wheel Q, pawl P, collar N, and hooked arm R having stud R', with the lay
and reed frame of a loom, the arms S", tube S7, torsional spring S¹, plug S*,
ratchet S, pawl S, and the arm S, substantially as and for the purposes set forth.
Dated Minis 2ord day of January 1885.
WP. THOMPSON & Co.,
Of G, Lord Street, Liverpool,
and 323, High Holborn, London,
Agents for the Applicant.