Improvements in Controlling Mechanism of Revolving Shuttle Boxes of Looms for Weaving.
Year: 1898

page_text: Date of Application, 5th Feb., 1898
Complete Specification Left, 5th Nov., 1898-Accepted, 21st Jan., 1899
Improvements in Controlling Mechanism of Revolving Shuttle
Boxes of Looms for Weaving.
I, EBER SMITH, of 15, Sefton Street, Nelson, in the County of Lancaster,
Overlooker, do hereby declare the nature of this invention to be as follows:-
This invention relates to that class of revolving shuttle box controlling mechanism,
in which the pattern surface is brought into operation in a lateral direction, as well
as in the direction of its length, or chain of lags or cards.
I mount the pattern cylinder in a suitable frame, and in each lag or card of the
said cylinder, I form a considerably greater number of holes for the reception of
long and short pegs for controlling the shuttle boxes than is usual in the ordinary
type of mechanism, in which the pattern cylinder is moved only in the direction of
the length of the chain of lags.
Placed immediately above, and parallel with the pattern cylinder is a screw shaft
mounted on rocking levers. At the end of this screw shaft or worm, I fix a star
wheel provided preferably with four teeth. Into the teeth of this wheel engages
one or other of two catches mounted on a stationary shaft or stud, and drawn
together by a spiral spring. A V-shaped cam mounted on the shaft of the pattern
cylinder, and introduced between the two catches, allows first one and then the other of
the said catches alternately to be brought into operation when the pattern barrel is
moved one lag forward in the novel manner hereinafter appearing. The screw
shaft is thus rotated alternately first in one direction, and then the other, when each
lag has been traversed and indicated.
On the screw shaft is mounted a sliding bracket, formed with a boss bored and
tapped to correspond with the screw shaft, consequently it is moved forward along
the screw shaft, step by step, as the latter is rotated in the manner already
described.
With the reversal of the catches, previous to the presentation of a fresh lag, the
screw shaft is correspondingly reversed in motion, and the sliding bracket caused to
move in the reverse direction.
On the sliding bracket is provided a lever carrying a pin or indicator, which falls
on a long or short peg or no peg as the case may be, and communicates through a
link the desired indication to a rocking shaft, which carries two notched levers, which
as the case may be determine the movement of the rocking indicating levers of the
shuttle box operating mechanism by two vertical rods provided with pins, which
according to the position of the notched levers give motion to the shuttle boxes, as
described in specification of Letters Patent granted to myself and on James Hill
No. 21,424 dated 8th December 1891. Any other suitable communication and
indicating mechanism may however be adopted.
The said pivotted lever on the sliding bracket is so arranged that when a lag length
has been traversed, the said lever will come in contact with a projecting pin on the
pattern cylinder, which will have the effect of raising one end of the pivotted lever
and depressing the other. As this end is depressed it bears against a cranked
rod extending across the frame, having attached to it a vertical catch piece, which is

page_text: thereby withdrawn from engagement with a projection or lug on a horizontal lever. This
lever receives a rocking movement from the operating mechanism, and carries at its
extremity a ratchet, which enters the teeth of the ratchet wheel of the pattern cylinder.
The disengagement of the said catch piece with its notch or projection permits of the
ratchet wheel being turned a tooth and a fresh lag presented. During this operation,
both of the controlling catches heretofore described for turning the screw shaft are
simultaneously disengaged from the star wheel, and when one of the catches
ultimately falls into active position, a fresh lag has not only been presented, but also
the first indication accurately determined.
Dated this 2nd day of February 1898.
RICHMOND & Co.,
Agents for the Applicant, 12, Standish Street, Burnley.
:
Improvements in Controlling Mechanism of Revolving Shuttle
Boxes of Looms for Weaving..
I, EBER SMITH, of 15, Sefton Street, Nelson, in the County of Lancaster, Overlooker,
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, that is to say :-
It relates to the class of pattern surface. nechanism for controlling the movements
of loom shuttle boxes wherein the indicating functions are performed in a lateral
direction, as well as in the direction lengthwise the pattern chain, and the object of
this invention is to produce mechanism of simpler and less expensive construction,
and yet to be as efficient in its operations as those heretofore produced.
In the accompanying sheets of drawings which are illustrative of my
invention:-
Fig. 1 is an end elevation of mechanism made in accordance with my invention
and as fixed upon the upper part of the loom's framework.
5.
Fig. 2 is a sectional elevation of certain of the parts shown by Fig. 1 the framework
being omitted so that the other parts might be inore clearly shown.
Fig. 3 is an end elevation of a part of the mechanism shown by Fig. 1 and as seen
in the opposite direction.
Fig. 4 is a front elevation of the parts shown by Fig. 1.
Fig. 5 is a view of the mechanism shown by Fig. 4 as seen from above.
In carrying my invention into effect I mount the pattern cylinder a in hearings
carrie by the framework b b and in each lag c I form as many holes for the reception
of the pattern pegs d as I may think desirable.
On the extending arms of the levers f f I mount a screwed shaft g arranged to
carry a nut or. screwed bracket h which is guided and prevented from rotating
thereon by its tail piece taking over a guiding shaft or bar k.
To transmit intermittent rotary motion to the screw g I secure the ratchet wheel m
upon it and arrange the one or other of the ratchets n n¹ to be in contact therewith
as the shaft g is being raised by its levers f f¹ as these are operated through the
reciprocatory rod p, which derives its reciprocatory motion from any motor part of
the loom, in this manner when one of the ratchets is thus transmitting motion to
the screw this latter will cause the bracket h to move along same intermittently
while when the other ratchet is in gear then said screw will move the ratchet h
step by step in the opposite direction.
....The pitch of the screw g is so proportioned to the space through which it is moved
at each of its intermittent movements by its ratchets n n¹ and wheel m, that the
bracket, his caused to move at such times through a space equal to the distance that
the pegs in the peg-lags c are from each other, by which means as the screw

page_text: continues in one direction the bracket h is carried by it to be presented to each of
the pegs & throughout the length of the lag c in succession, while when the screw g
is moved in the opposite direction the bracket h will be presented in the same manner
to the pegs d but in the opposite direction.
The height of the pegs d or the distance they extend out of the lags c determines
the position of the lever arm f in the vertical plane and such determination of the
lever f results in the adjustment of the parts for transmitting motion to the shuttle
boxes exactly in the same manner as that described in Specification of Letters Patent
granted to myself and James Hill No. 21,424 dated 8th December 1891, in connection
with the lever h therein illustrated.
The ratchets n n¹ are caused to press towards each other by being coupled
together with the spring q, and their positions as to being in or out of position for
operating their ratchet wheel m, and consequently the screw g, are regulated by the
cam-plate (in the position shown by Fig. 3, the ratchet n¹ is thus in position while
the ratchet n is out of contact with the wheel m, however on the next movement of
the cam-plate r it will be seen that their effective positions will be changed) which is
rotated as is the pattern cylinder a upon the shaft of which it is mounted, said
pattern cylinder a deriving its intermittent rotary motion by the ratchet 1 (pivotted
on the lever which is operated by the rod 11i hinged upon the lever & this latter
being secured to the shaft 8¹ which has oscillatory motion imparted to it by the
vertically reciprocatory lever p through the medium of the lever 8) whenever said
ratchet is permitted to engage with its wheel t.
The ratchet is enabled to engage with the wheel t whenever one or other of the
fingers u ul forming a bifurcated lever pivotted to the bracket h, is presented or
pressed upon a peg or projection on the pattern cylinder a to cause it to press
its other end on the cranked rod t¹ sufficiently to move the catch t¹ secured
thereon, from holding the lever 7 on which this latter is allowed to move for
the ratchet to descend to come into contact with its wheel t so that on the
next upward movement of the lever 11 the cylinder a will be rotated through the
space of one lag thus the next lag of the pattern surface will be brought into
position.
The pegs for operating the lever u u¹ are mounted on the end of the pattern
cylinder a as shown at vel so that the actions of such cylinder are at all times in
unison with the parts that have to reverse the actions of the screw g, while should
a reversal of said screw g be required midway the length of the pegs (as for example
when the pattern or design ends in such position) then an extra peg arranged to
be in an appropriate position thereon, effects the desired result.
By the cam-plater being arranged to operate simultaneously with the cylinder a,
both of the ratchets n n' are at such time thrown out of contact with their wheel m
consequently the screw g is left unmoved at this time to bring its bracket h down
into contact with the pattern surface in the same vertical plane twice in
succession.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
1. Mechanism for controlling the movements of loom shuttle boxes the same
being constructed and arranged to operate substantially as herein specified.
2. In mechanism for controlling the movements of loom shuttle boxes, a screw and
bracket moving on said screw together with the other parts for transmitting motion
thereto, in combination substantially as set forth.