Improvements in or Applicable to Circular Shuttle Box Looms.
Year: 1890

page_text: Date or
Application, 7th Mar., 1890-Accepted, 19th Apr., 1890
COMPLETE SPECIFICATION.
Improvements in or Applicable to Circular Shuttle Box Looms.
I ROBINSON FOULDS of Green Shed, Colne in the County of Lancaster, Manu-.
facturer do hereby declare the nature of my said 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 relates to improvements upon that class of loom in which a circular
or revolving shuttle box is employed operated by a cylinder and a chain or series of
perforated cards and has for its object an improved application of mechanism whereby
the motion of the cylinder (hereinafter called the main card cylinder) can be reversed
at pleasure and the operating fingers be also moved so as to operate upon another.
part of the same cards and thus enable a considerable reduction to be effected in the
number of cards employed in weaving patterns such as handkerchiefs or scarves.
Fig. 1 on the accompanying drawing illustrates a portion of a card chain perforated
in accordance with my invention the dotted lines marked a-a and d-d shewing
the position upon the cards of the ordinary perforations (which operate when the
chain is travelling in one direction) whilst the parallel dotted lines b-b and c-c
represent the position of the additional perforations which come into operation by
reversing the direction of movement of the travelling chain and simultaneously
sliding the operating fingers so as to come opposite the line of such additional
perforations as hereinafter described.
Fig. 2 represents a front view Fig. 3 a side view and Fig. 4. a plan view of so much
of a circular shuttle box loom as is necessary to explain my improvements which are
shewn applied thereto. Fig. 5. is a front view and Fig. 6 a plan (both drawn about.
full size) of the sliding mechanism employed for moving the fingers and Fig. 7
represents my improved double catch for actuating the main card cylinder.
In all the views a represents the loom framework and d the ordinary or main
card. cylinder which is mounted and raised by tappet mechanism in the ordinary
manner.
Instead however of the ratchet wheel hitherto employed on this card cylinder I
use a notched wheel (see Fig. 3) to enable the double catch (see Fig. 7) to operate
on either side thereof. The claws of this catch are separate from each other
and yet both mounted upon same stud so that the notched wheel
can turn on either direction, the one claw preponderating over the other
claw so as always to fall into gear when not held up as hereinafter described.
The set screw
nupon one arm screwing against the bracket on the other
arm serving to adjust the angle or clearance of the one claw from the notched
wheel whilst the other claw is in gear with the opposite side of such notched
wheel and vice-verse. Instead of the operating fingers being fixed as heretofore.
to the levers they are separately mounted in a slide which is capable of travelling
to and fro sideways in the supporting bracket m so as to bring such fingers as
desired opposite the additional perforations in the card chains. The levers
widened out (and slotted as indicated by dotted lines in Fig. 6) to permit the fingers
to pass through and so to slide as aforesaid whilst the same levers are themselves
supported and guided in their up and down movement between the usual cars o
projecting upwards from the bracket m.
E
are
With these preliminary explanations I will proceed to further describe my improve-
ments; employ an additional cylinder e hereinafter called the indicating cylinder
for carrying a chain or set of cards upon the centres of which as required are
affixed sunable pegs or projections for the purpose of reversing the main card
cylinder dat pleasure as hereinafter described. These pegs or projections are
designed to operate a lever e to the lower extremity of which is attached an arm el

page_text: which in its turn lifts the front heavier claw of the catch of the main card cylinder
out of gear with the front side of the notched wheel upon the axis of the main
card cylinder and puts it in position to gear (through the other claw) with the
back side thereof and so I reverse the motion of the main card cylinder d. At the
same time this same lever e by being further connected to one arm of a bell crank
lever g the other arm of which is connected to the slide i so causes the operating
fingers to move on the cards say from opposite the set of perforations indicated by
dotted lines a-a & c-c as to come opposite the set of perforations indicated by.
the lines band d-d. (see Fig. 1) and whereby I am enabled to reverse the pattern
with the same cards or to ntilize another part of the entire length of chain or cards
in continuation or repetition of the same pattern or otherwise as may be required.
The indicating cylinder c is itself operated by pegs or projections affixed in the centre
of the cards of the main cylinder (as indicated by letter con Fig. 1. and Fig. 2)
and which convey lifting motion to a vertical rod c². The upper end of this rod in
rising comes in contact with a cranked arm j branching from a horizontally mounted
axis (which at its other extremity carries an arm j connected to the pawl or catch !)
and thus the indicating cylinder is revolved one tooth every time the peg or
projection et presents itself beneath the vertical rod c³.
It will be observed by a consideration of chain diagram Fig. 1. that by means of
my invention I am enabled to utilize four positions of lines of perforations on the same
cards instead of two as heretofore and thus to effect a considerable reduction in the
number of cards necessary for weaving patterns such as bandkerchiefs, scarves, etc.
I make no claim broadly to the use of an indicating or additional card cylinder for
controlling the main card cylinder as I am aware that such an arrangement has been
hitherto used in this class of loom.
Having thus 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:
―
1st. The improvements-in-circular-shuttle box-looms-substantially as and for the
purposes herein before described.
2nd. In a circular shuttle box loom the combination and arrangement of mechanism
for reversing the card cylinder and simultaneously moving the operating fingers
substantially as and for the purposes hereinbefore described and illustrated on the
accompanying drawing.
3rd. In a circular shuttle box loom so mounting and operating the fingers of the
main card cylinder as to be capable of sliding sideways to and fro substantially as and
for the purposes hereinbefore described and illustrated on the accompanying
drawing.
4th. In a circular shuttle box loom the employment of an additional or indicating
card cylinder mounted and operating substantially as and for the purpose herein-
before described and illustrated on the accompanying drawing.
5th. The improved double catch for operating the main card cylinder in either of
two directions as desired substantially as hereinbefore described and illustrated on the
accompanying drawings.
Dated this 6th day of March 1890
JOHN G. WILSON,
Patent Office, 55, Market Street, Manchester, Agent for the Applicant.