US7925A - Fancy-check powee-loom - Google Patents

Description

NVFETERS. FHOTUUTHOGRAPHER. WASHINGTON. Dy C4 E. BUR'no MANCHESTER. CONNECTICUTL- FANCY-CHECK iownizmooivr.

Specification of Letterslatent No.l7,925,idatedlFebruary 4, 1851-.: l i

`To all whom t may concern.' l

Beitknown that I, ENooH Bonnot Manchester, inthe county of Hartford and State of Connecticut, have' `invented certain Im-4 ;provements in Fancy-,Check Looms, and

\ that the following is a full, clear, and exact description of the principle or character' which distinguishes them `from `other things before known l. and of the `usual manner of making, modifying, and* using the same, referencebeing had to the accompany-` Figure l,` is a side elevation, Fig. 2, and Fig. 3` end elevations, Figa a 4top plan, Fig. 5 an enlarged View of `theheddle shifting apparatus, and Fig. 6 a top plan of the same, Fig. 7 an enlarged view of the` pin` Iwheel (y). y

My improvement on the fancy check power loom consists in anindelinite number `of shuttle boxes, l: connected together by joints, at theirlowercorners, formingthem into1 anendless chainband, by uniting the two ends. This chainis hung upon a race beam, and stretched into a parallelo;-` `grammic figure, by another square` head,

square headona rod running through the hung on a pivot inthe lsword ofthe lay. The runningshuttlew on thetop, level with 1the top ofthe race, the boxes extend clownward, on either "sideoftherace to the lower shuttle, whichlies bottom upward `on the .lower squaregfThe advantage gained by thislnew arrangement of boxes, is the following, 1st,thelboxes balance each other,

rendering unnecessary the `counter `balancing weights, or springs, and hence they shift` with moreease. 2nd, as the shuttle extends downwardtoward the centerfof motion of the lay, consequently the lay, though carrying twenty shuttles, may have as great speed as the-plain loom, which cannot be the case, when the shuttle boxes are detached from `the lay, and it', of necessity brought to a statelof rest, while the shut`- tlc lis-passing` through the web, and also a` new, and improved mode of` operating the heddles, for forming variegated sheds, by

'the combination fof the regular worm,

double horizontal rectangular levers, vertical notched levers,` pin barrel, new levers,

y and draw Wires,by which combination, the

heddles arefsprung upwards and downward, to form theshed, and as arbitrarilydiverse, in their order, as is affected by the Jacquard machine, in proportion -to the number of.

l a spur wheel lquarter of a revolution, (e z'), one square at (t), the slides (q1, shoulder of the limb (u), which has a notch g'that serves tohold the wheel ,(0) stationary, V.by one of its pins, until required to` move,

heddles employed. The advantage oflthis `modefof operatingtheheddles, `are, sim# plicity,ease, and accuracy, every motionbeing positive, and upon trial, oundto be perfectly satisfactory.

(0;) is the frame, .to which the several parts are lattached. ,The shuttle boxes (i), maybe made of sheet metal,` bent into` a square tube, havingaslit or opening in the upper side, for the Vpassage of the picker;`

these are attached to each other, by hinge jointsat their lower corners, or they may be made fast to a latihinge joint band, and

the two extremities joined together by 1hinge, thus forming an endless chain of 1boxes,` thenumber of which'may be in-` creased indefinitely according to the variety and numbers of colors` to be introduced into the required pattern. This' chain passes over the square heads cfa spindle (K),

`which extends through therace beam (g),

and has on the other end, a square (l), on

. each square of which, is a shuttle box, form- `ing a square `of four shuttle boxes,..which revolve with` the rods; these boxes receive l.the shuttles two or more in succession, from` the chain of boxes, and then throw them lback in theysame order, to the,` chainboxes, .,weaving, what is called, thread about. The lchain of shuttle boxes (Zn) are brought into a parallelogrammic ligure by another `square headed spindle m), on the end` of which is".`

n), 3 which i is turned oneeach strokeV of the lay, and presents a new shuttle to the action of the picker. l The wheel (o) is exactly double the size, and` has ldouble the number of teeth, of the wheel (a), and Vhas in itsside, eight pins, (P), at

f1 equal distance from each other, thiswheel` pin, at ra time by the action of ,thesliders' (g1) i -and (g2), pressing upward aga-inst one of is `moved aroundtthe distance of one the aforesaid pins gl) is lifted` by the bent u lever (l), having` its fulcrum at (s.) ,and is acted on at itsupper end, by the cam (t), `on the crank shaft` (b).

e l l l To cause the Wheel (lo), and the `chain of shuttle boxes to `move in the opposite direction,the pins (,P),l are actedupon by the slide (g2), and the lever (r2), hich is also g2) in yrising l. strike the but when eitherhof the slides, (g1 gl2)frise,.to

operated on by theI Acam shift the-boxes, they strike the shoulder of the limb and lift it from the in, thus unlocking the wheel (o), before striking the pin (P) to move the wheel (o).

(o) is a spring which presses the limb (u) down on the pin. On the shaft (c) is an irregular worm cam (fw), the oblique part of the threads,l of which causes the spur vvh'eel (X) to move around, the distance of one tooth, at each revolution of the cam (WV), on the shaft of the wheel (X), lis a fiat wheel (y), having a circle of pins, which are stuck, in either face of the wheel, according to the desired pat-tern. The pins on one side of this wheel act upon the tail of the lever (z) which has its fulcrum at (1), and the upper end acting on the lever (r1) places it in a position, to be acted on by the cam (t). The pins in the opposite side of the wheel (y) press on the lever (2),

.having its fulcrum at (3), which forces the lever (r2) intona/position to beworked by the cam Y(')mand [at the same time throw the lever (r1), out. Thus the levers (111 r2), are acted on alternately, by the cam (t), which, by the slides (g1, g2), and the wheels (0 and a), cause t-he shuttle boxes to shift either forward or backward as the ligure may require, bringing the requisite shuttle to a position to be acted upon by the picker. In complex patterns, when a great variety of shifts are requisite, I put a chain band, (admitting at the joints, pins on either side), around a small notched pulley, on the shaft of the wheel (y), and another notched pulley, hung on the opposite side of the loom, stretching the chain bandacross the whole breadth of the loom frame; the pins, acting on the levers (z and 2) in the same manner that the pins do in the wheel (y).

The apparatus for working the heddles', giving them the variety of changes required, in complicated patterns, is described as follows: On the cam shaft (c), of the common loom, is a cam wheel (6), having an irregular groove in its periphery, consisting of two oblique offsets, directly opposite each other, in which a steel stud on the ends of the double right angle lever (7 works, which receives a lateral motion therefrom, at every semi revolution of the cam shaft (c), and

imparts avertical motion to its other end, the lever (7 is made double, the two sides being made fast on a shaft at the center of its motion, and a bar across the end of the horizontal part another double lever (8) constructed like the foregoing though a little shorter hung, and fastened to a shaft, and a b-ar across the end of the horizontal part, having its bearings or central motion within,

vand above, the double lever (7), these are so connected by the links (9), that when the end of the double lever (7) is depressed,

by the action of t-he'camwheel (6), and steel stud, the end of the double lever (8) will rise (e. z'.) the bars across their ends will alternately meet each other and recede from each other at every beat ofthe lay; the harness or heddles are attached, and suspended, in the usual way, to the upper lever beams (10), these parts have been shortened down, in the models, to save room. The wires (11), occupy the place of the heddles, and are attached, at their lower ends, to the lower lever beams (12). The vertical levers and rods (13), join the outer ends of the upper and lower lever beams (10 and 12), and have notches on their outsides, into which the bar on the end of the double lever (8) catches, to lift them, and other notches, on their inner sides, into which the bar of the double lever (7 catches t0 depress them, above the inner notches is a shoulder which rests on the bar of the double lever (7 when at rest.

The drawing shows the apparatus for only four heddles, but the number may be increased indefinitely; a cylinder (14) is hung on standards, made fast to the frame that supports the double rectangular levers, and at right angles with it, and the cam shaft (c), on the surface of the cylinder, are holes, parallel with its axis, equal in number to the heddles employed, and extending around the cylinder (14), at equal distances from each other, and equal in number, to thenumber of teeth in the ratchet wheel, on its axis, hereafter to be described, into these holes, are stuck pins, where it is required in the pattern to move either of the heddles up while the others move down. These pins act on a series of right angled, or knee levers (15), the other end of which, are connected with the vertical levers and rods (13), and draw them inward and away from the bar of the double rectangular lever (8) which would otherwise lift them, and the notch on the inner side, catching on the bar of the double rectangular lever (7 is by t drawn down, and the heddles between the opposite ends of the levers (10 and 12) are elevated. The cylinder (14) is turned forward at every beat of the lay, bringing a fresh line of holes and Apins under the right angle, or knee levers (15), by a ratchet wheel (16), attached to it, having the same number of teeth, that there are holesv around the cylinder. (14), and turned by a pawl (17) on the end of a cam lever (18), which is thrown forward at each semi-revolution of the cam shaft (c), by the projections (19) on the side of the irregular cam (6). The cylinder (14) is held to its place by the spring pawl (20), pressing into the notches of the ange (21), on its ends thus wherever pins are placed in the cylinder (14) the heddles corresponding therewith are made to rise, Vas the pins come in contact in succession with the heads of the knee levers (15) andthe other heddles which correspond tothe place Where the holes are left open are left to be depressed by the bar of the double rectangular lever (8).

I have thus fully described my improvement in fancycheck power looms, I have adverted to many things in this description, which I do not mean to claim as new. Some of them are of my own invention, and heretofore used by me,`such as the revolving boX, shuttle boxes on each end of the lay, to weave threadsabout, the pin wheel or chain bands of pins by Jthemselves having long since used them all myself and in a word I disclaim together with the forenamed, considered singly, everything pertaining to the common power loom,but y I do claim as my invention l. The connecting a series of shuttle boxes by joints at their lower corners, or attaching them to a flat jointed chain, and connecting their extremities,fso as to form an endless chain of boxes, and bringing them into a parallelogrammic figure, by means of two square heads of a size to tit the space between the joints of the boxes, or the chain, and hung on journals, one on the end of the race beam, and the other on the sword of the lay, substantially as heretofore described.`

`giving them, with the heddles, an upward and downward movement, in any irregular manner desired, substantially as described in the specifications const-itutinga new and advantageous modus operandi of `forming a variegated shade.

j ENOCH BURR. Witnesses: i

HENRY B. WINTER, MARY I-I. PIERCE.

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