US573276A

US573276A - Mechanism foe looms

Info

Publication number: US573276A
Authority: US
Publication date: 1896-12-15
Anticipated expiration: 1913-12-15

Description

(No Model.) 4 Sheet-Sheet 1.

A. LOGKWOOD. SHUTTLE BOX OPERATING MECHANISM FOR LOOMS.

No. 573,276. Patented Dec. 15,1896.

( No Model.-) 4 Sheets-Sheet :2.

A. LOGKWOOD. SHUTTLE BOX OPERATING MECHANISM FOR LOOMS.

Patented Dec. 15, 1896.

bm-UTNQ, wasums'ron o c (No Model.)v 4 Sheets-Sheet 3.

A. LOGKWOOD. SHUTTLE BOX OPERATING MECHANISM FOR LOOMS.

No. 573,276. Patented Dec. 15, 1896.

(No Model.) 4 sheets s heet 4.

A. LOGKWOOD. SHUTTLE BOX OPERATING MECHANISM FOR LOOMS.

No. 573,276. Patented D60. 15, 1896.

UNITED STATES PATENT OFFICE.

AMOS LOCIUVOOD, OF HALIFAX, ENGLAND.

SHUTTLE-BOX-OPERATING MECHANISM FOR LOOMS.

$PECIFICATION formingpart of Letters Patent No. 573,276, dated December 15, 1896.

Serial No. 558,060. (No model.)

To all whom it may concern.-

Be it known that I, AMos LooKwooD, a subject of the Queen of Great Britain, residing at 38 lVillow Bank, King Cross, Halifax, in the county of York, England, have invented a new and useful Shuttle-Box-Operating Mechanism for Looms, of which the following is a specification.

In looms having movable shuttleboxes (either of the class known as rotary or those callet rising and falling shuttle-boxes) which are arranged to be operated so as to bring each of the several shuttles into operation in accordance with the design to be produced it is often found that a long series of changes has to be passed through before such design repeats itself or is repeated. Consequently it is necessary toemploy a patternsurface of considerable magnitude to effect such product-ion. Heretofore this patternsurface has consisted of either paper or metal cards operating in connection with the old well-known devices whereby one card was required for each shot of weft. Thus thousands of these cards have had to be employed to attain the desired result, or at other times a pattern-barrel having its peripheral surface perforated for the reception of indicating pegs has been employed; but in this case the range of pattern is limited, while, further again, wooden lags, each having a row of holes arranged along its length, together with lever mechanism for visiting each hole in succession from one end thereof to the other, have been made use of butin this case on these levers arriving at the outer end of the lag to which they have advanced they have had to jump or recede therefrom at one bound to the end from Which they started.

Consequently the speed of the mechanism...

may be such as would not allow time for such said receding actions of these levers, so that lags having two series of rows of holes, one

series to be used on the advancing motion of the levers that their pegs have to operate,

and the other to be requisitioned on the receding motion of said levers. Thus each lag answers all that is required of it and that for double the number of shots of weft that it has heretofore been able to indicate for or control, while mechanism is produced that may be fitted to any of the well-known kinds of looms. This object I attain by the employment of means hereinafter described, and as illustrated by the accompanying sheets of drawings, in which- Figures 1 and 2 are end and front elevations of a sufficient portion of a loom to show the application of my invention in connection with a common revolving-box loom. Fig. 3 is a similar view to Fig. 2 wit-h certain of the parts omitted, while other parts are shown to have assumed different relative positions hereinafter explained. Fig. a is a View of parts shown by Fig. 2 as seen from behind, theframework being omitted for the sake of clearness. Fig. 5 is a part sectional end elevation illustrating the several parts in altered positions as compared with their positions shown by Fig. 1. Figs. 6, 7, and 8 are sectional front elevations, enlarged scale, showing parts in detail in order that their functions may be more readily understood from the following description. Fig. 9 is a view, enlarged scale,of parts shown by Figs. 1 and 2 as seen from above. Fig. 10 is a similar view to Fig. 9 with certain parts omitted, while other parts are shown in other relative positions. Fig. 11 is a similar view to Fig. l with the framework omitted and illustrates an arrangement of parts whereby other old parts of the box-controlling mechanism may be dispensed with. Fig. 12 is a diagram showing how my improved mechanism may be employed in connection with a rising or drop boX loom.

Like letters and figures of reference indicate like parts throughout the several views.

Aindicates the end frame of the loom.

To attain the object of my invention, I make use of cards or peg-lags (preferably the latter; hence they alone are shown in the annexed drawings and referred to in the following description although it is Well known that the former are often and extensively used in place of the latter) having six (or more than six, as will hereinafter be described) rows of indicating-holes a b c and a b half the number of said rows of holes being in operating position at one time, the other half at another time, as shown by Figs. 9 and 10, the rows a Z) 0 being shown in operating position by the former figure, while those at a b 0' are shown in operating position by the latter.

In connection with each of the rows of holes that are in operating position I arrange to operate a lever, as the levers d e f, one of these levers (the lever 6) having control over the movements of the pattern-cylii'ider (1, while the other levers, d and f, are for controlling the movements of the shuttle-boxes by putting the box operating mechanism into and out of motion, as and for the purposes desired, be the said box operating mechanism any one of the several well-known kinds or descriptions.

The well-known kind of rotary shuttle-boxoperating mechanism herein shown, consists of the cam 2, fixed on the looms rotary shaft 3, so that it may impart reeiprocatory motion to the lever 41, in order that when either of the catches or 6 is made to engage with this lever 4 its respective box-

lever

7 or 8 will cause its

hooker

9 or 10 to rotate the shuttlebox through the medium of the peg-wheel 11, and the engagement of these catches 5 and 6 with the lever 4 is effected by the

levers

12 and 13, which are caused to oscillate by the rod 11, operated by the eccentric 15, the outer ends 50 of these levers being heretofore allowed to descend directly into contact with the pattern-surface of a pattern-eylinde1 which arrested them in such descent, so as to prevent their other ends g from causing their catches 5-a11d (J to engage with the lever 4, or it allowed them to descend, so that these catches would be placed into contact with the lever 4, as the case might be. However, in connection with my invention these levers 12 and 13 have the pendent detaining-catches 10 and 17 pivotally attached to them, so that they may be controlled by the cylinder 9, as hereinafter described, or the

lovers

12 and 13 and the

catches

16 and 17 may be dispensed with, as shown by Fig. 11, wherein the catches 5 and 6 are directly operated by the cylinder g.

In Fig. 12 the drop-box mechanism, consisting of the differential levers 18 and 19, operated by the gear-cranks 2O 21, through the rods 22 23, is the one shown as being suitable for controlment by my improved mechanism, the cylinder 9 in my said mechanism being arranged to select or operate the gearcranks 20 21 through the medium of the levers 24 25, upon which they are respectively mounted, and the rods 26 27, which latter are coupled to the levers n n, to which are attached the rods m 172 the functions of which levers 7714M; and rods m m are identical with those of the rods m m and levers n n, and which are hereinafter explained, so that said gear-

cranks

20 and 21 may be moved in order that by their retaining-lever 28 (to which reciprocatory motion is intermittently imparted by the cam-surface on the toothed segment 29 through the medium of the connectingrod 29) they may be put into gear with one or other of the

toothed segments

29 or 30, by which they are operated to move the rod 18, (which is coupled to the drop shuttle-boxes in the well-known manner,) through the medium of the rod 18 and the lever 18", their several and varied positions being indicated by chain-lines representing the center lines of the levers.

The actions of my pattern mechanism for putting the shuttle-box into motion are as follows: hen the cylinder g has its patternsurfaee prepared to act upon the levers d f, as by pegs being placed in the holes a c or a c, on such cylinder 9 being raised against the levers cl and f said pegs will come in contact with the outer ends of the levers df, (into which are fixed the pins 71,) raising said ends of these levers df and depressing the other ends at 76, so that the rods m m are forced downward, overcoming the actions of gravity on the levers n n (or 01 71 and forcing, by their rods 0 0, the

catches

16 and 17 off their retaining-piece 31 and allowing the levers 12 and 13 (which at such time would not be held suspended by the rod 14: and its eccentric to move the catches 5 and 6 as desired; or the rods 0 0 would act upon the catches 5 and 6, as shown by Fig. 11.

The rods m 071 (shown by Fig. 12) are operated by the levers d and f in the same manner as are the rods m m. Thus the levers n n are moved in the same way as are the le vers. 7b a or a u However, in this case the levers n 12 by their

rods

26 and 27, operate the lovers 24 and 25, so as to enable the presser or dividing lever 28 to force them in such direction as to bring their gear-cranks and 21 into gear with their

segments

29 and 30, as hereinbefore described.

It will be seen from the foregoing that more than two of these levers d and f might be employed, provided a corresponding increase in the number of rows of indicating-holes Ct c is made in the lags, although only two of such levers and their respective connectingrods and parts are shown and described, since only a common revolving and not a skip rotary box is shown, nor is a more extensive drop-box than one with a series of four compartments referred to, because by describing my invention in connection with these simpler forms it will be more readily understood, while its carrying out in a more extensive manner only requires an increase in the number of its several parts.

The levers (Z c f are mounted upon the sliding piece 1), which is caused to move or advance upon the bearing q in the direction indicated by the arrow q, Figs. 2, 9, and 10, by the cam 8, while its return movement is eifeoted by the spring r through the lever r and chain r although such return may be controlled by the cam s, as is hereinafter de scribed. This cam sis intermittently rotated by the ratchet t through the wheel which is fixed upon the cam-shaft 5', its position at each movement being secured by the spring to forcing the bowl it, carried by the lever 1L against the star-wheel u while the ratchet t receives its reciprooatory motion by being mounted upon the lever 12, pivoted at t and operated by the rod r which couples it to the vertical support '0 upon which the cylinder 9 is mounted.

The vertical movement of the support e (and consequently the cylinder g) is effected by the eccentric 15 through the rod 14 and the chain c, as shown by Fig. l, or through the lever to, as shown by Fig. 11, while the return movement of this cylinder g is effected .by gravity, aided by the spring w, which by its actions on the levert' causes the rod r to press the support u in a downward direction, and the attachment of this rod v to the support r by the projecting arm 11 in addition to its downward pressure, also tends to force its upper end, on which the cylinder g is mounted, in the direction indicated by the arrow 2', by which means the piece 10 which slides horizontally upon the bearing-shaft 10 and in which the upper end of the support 12 slides vertically, (see Figs. 9 and 10,) is always pressed forward, so that its antifrictionbowl 104 is thus constantly'kept in contact with the cam-surface a on the star-wheel a In explanation of the above-mentioned lateral movement imparted to the support '0 it may be said that the latter loosely engages a guide near its lower end, and this guide serves as a fulcrum for the support to work .upou under the impulse of the spring w, the

point of engagement of the rod 42 being laterally removed from the vertical plane of the support. As the cam sis thus intermittently rotated the outer ends of the levers (Z c f, carrying the pins h,are made to advance .over the pattern-cylinder g in successive steps, which are made to agree with the distances that the holes are from each other lengthwise their rows, the turn of rest of such cams and levers d e f being arranged to take place at the time of the ascent of the cylinder g, (the extending ends It of said levers cl f being sufficiently long, so that they will not be drawn clear of the rods m m in or by their said advancing movements,) so that their said outer ends are successively presented or brought into position for being operated upon by each hole in their respective rows of holes, commencing at the end g of the peg-lags, traveling over it on the rows a b c to the other end 9 and as regularly traveling back again along the other rows 61 b a, the cylinder 9 having advanced in the direction of the arrow .2, since the semicircular cam-surface a (see Figs. 6 and 9) will have allowed it to do soat this time, notwithstanding and in addition to its continued rising and falling movements.

The lever e, which is referred to herein as ries.

governing or controlling the movements of the cylinder g, does so in a certain measure as far as regards its rotary motion, and this is effected as follows: Provided the end of the design being produced falls at any part on the pattern-surface along the series of holes Ct b c, then such pattern-surface will be prepared, as by apeg being placed in the lag, so that on the rising of the cylinder 9 the lever c is raised. Then the end 6 of the lever 6 will be raised while the end e is lowered. Thus the catch 6 which it supports, falls into contact with the projecting pin t on the ratchet t in order that on the next movement of the lever r it may be lifted out of contact with its wheel 2!, while at the same time it overcomes the re sistance of the spring a, pulling the lever to and its bowl a clear of the wheel a Thus the pressure of the retracting-spring 4', now that the cam s is not held, forces the slide 19 back to its normal position, as shown by Fig. 9, bringing with it the levers cl 6 f that it car- Ou thelevers cl cf returning to the position last described the lever 33, which is also pivoted on the slide 19, returns to its rear position, in which its inclined edge 34 is pulled over the portion of the bearing g which supports it.. Thus it is raised, bringing with it the weighted arm 35 of the ratchet 36, (which weighted arm by gravity always tends to keep the ratchet 36 clear of the peg-wheel on" the cylinder 9,) so that this latter is brought into contact with the ratchet-wheel on said cylinder, by which means, on the cylinder again descending, it is caused to rotate to bring its next peg-lag into position. Again, provided the end of the design or pattern being woven falls upon the rows of holes a, Z2 0, then the indicating-lever 6 will again be operated, so that the slide 12 and its levers d e-f will be caused to continue their receding movement, but at this time will finish same'at one bound and will arrive in their said normal positions, in which the lever 33 will cause the cylinder again to rotate.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. The combination of a vertically and laterally movable rotary pattern cylinder; means for vertically reciprocating said cylinder, means for laterally shifting the cylinder at predetermined times; means for intermittently rotating the same; normally-disconnected shuttle-boX-shifting mechanism; devices for rendering operative said shuttleboX-shifting mechanism, said devices including abutments'overhanging the pattern-cylinder to be actuated by the pattern devices thereon under vertical movement of the cylinder; and means forintermittently varying the relative positions of the said abutments and the cylinder longitudinally of the latter. 2. The combination of avertically and laterally movable rotary pattern cylinder; means for verticallyreciprocating said cylinder means for laterally shifting the cylinder at predetermined times; means for intermittently rotating the same; normally-disconnected shuttle-boxshifting mechanism; devices for rendering operative said shuttlebox-shifting mechanism, said devices including one or more levers on a support movable in the direction of the length of the cylinder, said levers having abutments overhanging the latter and adapted to be acted upon by the pattern devices under vertical movement of the cylinder; and means forintermittent-l y moving the lever-support.

The combination of a vertically and-laterally movable rotary pattern -cylinder; means for vertically reciprocating said cylinder; means for laterally shifting the cylinder at predetermined times; normally inoperative means for converting vertical into rotary movement of the cylinder; normally-disconnected shuttle-boX-shifting mechanism; devices for rendering operative said shuttleboX-shifting mechanism, said devices including one or more abutments overhanging the cylinder and carried by a support movable longitudinally of the cylinder; meansfor intermittently moving said support; and a shipper carried by said support and operat ing at one extreme of the latters movement to render operative the means for converting reciprocating into rotary movement of the pattern-cylinder.

4. The combination of a vertically andlaterally movable rotary pattern cylinder; means for vertically reciprocating said cylinder; means for laterally shifting the cylinder at predetermined times; normally inoperative means for converting vertical into rotary movement of the cylinder; normally-disconnected shuttle-box-shifting mechanism; devices for rendering operative said shuttle-boxshifting mechanism said devices including one or more abutments overhanging the cylinder and carried by a support movable longitudinally of the cylinder and yieldingly impelled in one direction; means for effecting step-by-step movement of said support in both directions; pattern-actuated devices for rendering inoperative the said means for producing step-by-step movement; and a shipper carried by the said support and operating at one extreme of the latters movement to render operative the means for converting reciprocating into rotary movement of the pattern-cylinder.

5. The combination of a vertically and laterally movable rotary pattern cylinder; means for vertically reciprocating said cylinder; means for laterally shifting the cylinder at predetermined times; normally inoperative means for converting vertical into rotary movement of the cylinder; normally-disconnected shuttle-boX-shifting mechanism; de-

vices for rendering operative said shuttleboX-shifting mechanism said devices including one or more abutments overhanging the cylinder and carried by a support movable longitudinally of the cylinder and yieldingly impelled in one direction; a cam engaging said support; paWl-and-ratchet mechanism for moving said cam step by step; patternoperated means for disconnecting said pawland-ratchet mechanism; and a shipper carried by the said support and operating at one extreme of the latters movement to render operative the means for converting reciprocating into rotary movement of the patterncylinder.

6. The combination of a vertically and laterally movable rotary pattern cylinder; means for vertically reciprocating said cylinder; means for laterally shifting the cylinder at predetermined times; normallyinoperative means for converting vertical into rotary movement of the cylinder; normally-disconnected shuttle-boxshifting mechanism; devices for rendering operative said shuttleboX-shifting mechanism said devices includlng one or more levers overhanging the cylin der and carried by a support movable longitudinally of the cylinder; means for moving said support step by step; and a hinged arm on the support and having a cam-surface to coact with a suitable abutment on the frame of the machine, movement of said arm effecting operativeness of the means for converting reciprocatory into rotary movement of the pattern-cylinder.

'7. The combination of a vertically and laterally movable rotary pattern cylinder; means for vertically reciprocating said cylinder means for laterally shifting the cylinder at predetermined times; normally inoperative means for converting vertical into rotary movement of the cylinder; normally-disconnected shuttle-boX-shiiting mechanism; devices for rendering operative said shuttlebox-shifting mechanism said devices including one or more abutments overhanging the cylinder and carried by a support movable longitudinally of the cylinder and yieldingly impelled in one direction; a cam engaging said support; paWl-and-ratchet mechanism for moving said cam step by step; locking mechanism for retaining the cam in its diiferent positions; a lever 011 the movable support and arranged to be operated by the pattern devices; and means actuated by said lever for releasing the said locking mechanism and disconnectiiig the paWl-and-ratchet mechanism for the purpose described.

AMOS LOCKVVOOD.

lVitnesses:

FRED HAMMOND, SAM EL HEY.

ICC