US970591A - Weft-replenishing mechanism for weft-replenishing looms. - Google Patents

Description

WYMAN. WEFT REPLENISHING MECHANISM FOR WEFT HBPLENISHING LOOMS.

APPLICATION FILED MAR. 24, 1910.

Patented Sept. 20, 1910.

a BHEIT8-BHEET 1.

H. WYMAN. WBFT REPLENISHING MECHANISM ron WEPT REPLBNISHING LOOMS. 970, 5 9 1 APPLICATION TILED HARM, 1910.

Patented SQDQQO, 1910.

UNITED STATES PATENT ormo .2.

HORACE WYMAN, OF WORCESTER, MASSACHUSETTS, ASSIGNOR T0 CROMPTON & KNOWLES LOOIWWORKS, A CORPORATION OF MASSACHUSETTS.

WEFT-REPLENISHING MECHANISM FOR WEFT-REPLENISHING LOOMS.

Patented Sept. 20, 1910.

Application filed March 24, 1910. Serial No. 551,291.

To allwhom it may concern:

Be it known that I, HORACE WYMAN, a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in \Veft- Replenishing Mechanism for VVeft-Replenishing Looms, of which the following is a specification.

My invention relates to weft replenishing looms, and more particularly to weft replenishing mechanism for weft replenishing looms, of the type shown and described in U. S. Letters Patent, No. 948,568, in which a magnetized feeler feels for and dctects the substantial exhaustion of filling on the bobbin in the active shuttle. The magnetized feeler, which is movably held in an electric coil or solenoid, is adapted to be drawn out by a metallic band on the bobbin in the shuttle, when the tillin on the bobbin is substantially exhaustci and leaves room for the movement of a lever, to clear the end of the feeler and to put into operation selecting mechanism, and cause a cradle or support to be rocked, on which cradle the superposed bobbins in a compartment of the stationary magazine rest. The selected bobbin drops from its compartment to the discharging end of the magazine, preparatory to being automatically supplied to the active shuttle, to take the place of the substantially exhausted bobbin therein. It has been found in practice, in order to promptly deliver the fresh bobbin to the discharging end of the magazine, that the cradle, which holds the superposed bobbins in their compartments, may be made to act inore quickly it moved by a spring, acting to turn the cradle at the first part of the movement of a vertically movable rod, instead of the last part of its movement, as has hitherto been done. i

The object of my invention is to improve upon the selecting mechanism for looms of the type above referred to, and my invention consists in certain novel features of construction of my improvements as will be hereinafter fully described. I i I have only shown in the drawings .de-

'tached parts of a weft replenishing loom of the class referred to, with my improvements combined therewith, sufficient to enable those skilled inthe art to understand the con struction and operation thereof.

2 is a section, on line 2, 22, Fig. 1, looking in the direction of arrow I), same figure. Fig. 3 corresponds to Fig. 2, but shows some of the parts m-a different position. Fig. 4

corresponds to Fig. 3, but shows some of the parts in a difi'erent position. Fig. 5 is a rear view of some of the parts shown in Fig. 4, looking in the direction of arrow 0, same figure. Fig. (i is a section, on line (5, (3, Fig. 5, looking in the direction of arrow (2, same figure. Fig; 7 shows the indicating lever shown in the lower part of Fig. 1, detached, and, Fig. 8 is a section, on line 8, 8, Fig. 7, looking in the direction of arrow 0, same figure.

In the accompanying drawings, 1 is, the loomside or end frame, 2 is a portion of the breast beam, 3 is a stand, secured to the loom side 1 and loom arch l; said SLtlIltl 3 carries a stationary magazine 5. The magazine 5 has in this instance t wo vertically extending compartments 5 for superposed bobbins 6, which are adapted to rest upon rocking cradles or supports, which are located at the lower end of each compartmeut, see Figs. 1 and 5.

Each cradle 7 has one arm pivotally connected to a vertically moving rod 8', which has an elongated opening 8, to receive a pin 7 on the cradle 7. Each vertically mov' ing rod 8 moves in guides 8" on the back of the magazine 5, and has a hclically coiled expansion spring 9 thereon, which normally moves the rod Shpwardly until the lug 8" on the rod 8 engages the upperguide 8", to limit the upward motion of said rod 8. The upper portion U of the rods 8 is square shaped," as shown in Fig. 6, and is adapted to extend in the path of and be operated by an engaging arm '10, see Fig. (3, which has its hub 10 secured by a bolt 10" on a horizontally slidingrod '11, which is mounted in arms 11 on the back of the magazine. A collar 12 is secured 'on the rod 11 by a screw 1-2; and has a forked extension 12", see Fig. (5, into which extends a projection 13 on one arm of an angle lever 13, which has its hub 13 loosely mounted on a stud 14 on a downwardly extending arm 3 on the stand 3.

The other arm of the angle lever 13 has an elongated opening 13 therein, in which is an adjustablestud 13 ,to which is pivotally ter on the lay, not shown, to transfer a bobconnected the upper end of a link 15, see Fig. 1; the lower end of the link 15 is connected to one end of a' flexible chain 16, which passes over a guide pulley 16', and extends to the opposite side of the loom, not shown, to be operated by a pattern surface, or by the shuttle box operating levers, to communicate a longitudlnal motion to the horizontally moving rod 11, according to the indications of the pattern surface, or the movement of the drop shuttle boxes.

A helically coiled contraction spring 17 is attached at one end to the angle lever .13, and at its other end to the stand 3, andacts to move the angle lever'in one direction.-

The'transferrer arm 18 has its hub pivotally mounted on a stud 18, and has the downwardly extending arm 18 to carry the dagger, not shown, to be engaged by a bunbin in the usual way.

- The filling detector mechanism, which in this instance isof the type shown and described in said patent, No. 948,568, and also in a pending application, Serial No. 458,050, consists of a stand or bracket 19, securedto the 100m side, see Fig. 1, and havin a boss or hub 19 on its end, in which is ad ustably secured, by a set screw 20, the lower endof a stand 21. The stanll 21 carries atits upper end 21, a solenoid 22 of the usual construction, and having the longitudinally moving magnetic feeler 23 therein, ada ted to be moved inwardly toward the lay y the-engagement of its inner end with a metallic band on the bobbin. in the active shuttle, not shown, when the filling on said bobbin is substantially exhausted. Pivotally mounted on a stud 24 on the stand 21, is the hub of an angle lever 25; the upwardly extending arm of said lever 25 carries a pin 25, on which is pivotally mounted an arm 26 carrying a dagger 27. The arm 26 has a downward extension 26 thereon, of curved or cam shape, to ride'on the innerend of the feeler 23, see Fig. 3. A rocking motion is communicated to the lever 25 every second picln'by a cam and cam lever, not shown,

through a vertically extending rod 28, hav-' ing a collar 29, secured thereon by a bolt 29. The collar 29 has the extensions 29 to engage the projecting end 25 on the inwardly extending arm 25 of the lever 25.. When the lever 25 is moved toward the feeler 23, and said teeler is drawn out of the path of the extension 26 on the lever 26,

as shown in Fig. 2, through the engagement of the inner end of the feeler 23 with the metallic ring on the substantially exhaust/ed bobbin, the lever 26 will drop down and allow the dagger 27 to engage a notched lever 30, which is loosely mounted on a stud 30 'at its other :bnd to the upper part of the stand 21, see'Fig. 3. The movement of the lever 30 by the dagger 27, puts into operation the selecting mechanism for the bobbin to be transferred, as will'be hereinafter desci'ibed.

All of the above mentioned parts may be of the same construction as shownand described in said-patent, No. 948,568, and in the pending a plication Serial No. 468,050, above referre to, v

I will now describe my improvements, which relate more particularly to a selecting mechanism for the bobbin to be selected and dropped to the discharging end of the magazine, preparatory to being supplied to the active shuttle,-to take the place of the substantially exhausted bobbin in said shuttle.

The angle lever 13, see Fig. 1, has pivotally connected to the stud 13, the upper end ot' 'a vertically extending rod 31; the lower end of said rod 31 is pivotally connected to one arm of an angle lever32, which has its hub 32 loosely'mountedon a stud 33 on the loom side 1. The other arm of the angle lever .32 has pivotally connected thereto one end of a'horizontally extending rod or connector 34. The other end of said rod 34 is a stud 37 on a bracket or stand 37, secured to the loom side 1, see Fig. 1. Through the intermediate connections from the lever 13, a rocking motion is communicated to the push pin carrier 36,-and as there are only two positions of the lever 13 for two sets of bobbins, there are only two positions for the upright push pin carrier 36, according to the indications of a pattern surface, or the movement of the drop shuttle boxes. The push pin carrier 36, as shown in Figs. 7 and 8, is provided with the enlarged head" portion 36, which is adapted to loosely'hold in two holes therein, two push pins 38, which in this instance have enlarged engaging heads 38. The push pins 88 are adapted to be moved into two. positions, and to be held in each position, in this instance by a spring actuated pin or plunger 39, contained in the enlarged portion 36, and yieldingly moved upwardly by an expansion spring 39', to enter oneot the annular recesses 38 in a mg the push pins 38 is termed a push pin carrier. The rocking motion of the push pin carrier 36, as above described, moves one of the push pins 38 into alinement with an ush pin 38, The arm or carrier'36 carrya arm 40, which has its hub 40' loosely mounted on a stud 41 in a bracket or stand 42, se-

cured to the loom side 1, see Fig. 1. A secend to the end arm 40 extends inwardly from the hub 40, and has its end pivotally connected to the lower end of an upwardly extending rod or connector 43. The upper end of said rod 43 is pivotally connected to the lever 30 on the stud 30. WVhen the lever 30 is operated b the dagger 27, as shown in Fig. 2, and. above described, it moves, through connector rod43, and arm 40", the arm 40, and causes said arm 40 to engage and move to its i iward position the push pin 38, which is m alinement with the arm 40, asshown in Fig. 2. The longitudinally and vertically moving rod 28 is provided with a collar 44, which, is adjustably secured thereon by a bolt 44 and is provided with a cam shaped projection 4.4 on one side, which is adapted to be moved into the path of the head 38 on a push pin 38, and on the upward movement of the rod 28, through a cam lever and cam, not shown, at every other pick, as above described, the projection 44 on the collar 44 engaging with the head 38 eta push pin 38, causes the rod 28 to move inwardly or toward the left see Fig. 3.

The upper portion of the rod 28 is preferably flattened at 28, and suitably guided in a stand or bracket 45, secured to the stand 5 and extending downwardly therefrom. The flattened portion 28 on the upper end of the rod'28 has a projection 28', which on the upward movement of the rod 28, will engage one arm of, and move the angle lever 46, which has its hub 46 loosely mounted on a stud 47 on the stand 45, see Fig. 3. Through the movement of the angle lever 46, the hooked arm 46" thereon is disengaged from the arm 48, see Fig. 3, to allow said arm to move. A small helically coiled contraction spring 46 is attached at one end to the arm 46 of the lever 46, and at its other end to the arm 48, and acts to raise the ar m 4G" and rock the lever 46.

The arm 48 extends downwardly from the ,hub 48', which hub is loosely mounted on a stud 49 on the stand 45. Extending in wardly from the hub 48 is the yoke shaped arm 48", which receives and guides the extended portion 10' on the rocking lever 10, see Figs. 5 and 6. A helically coiled contraction spring 50 is attached'at its upper yoke shaped arm 48", the extended arm 10 is moved upwardly, and the engaging arm 10 on the horizontally moving rod ill. is moved downwardly about the axis of its projecting upper end of the stand 1 said rod to rock a cradle 7 and release the.

bobbin supported on said cradle, and allow it to drop to the discharging end of the magazine, preparatory to being transferred into the active shuttle, to take the place of the substantially exhausted bobbin in said shuttle, in the usual way. The torsion spring 50, attached at one end to a stationary part, and at its other end to the lever 51 on theyoke shaped arm 48, 'which ongages the extended arm 10 on the hub of the engaging arm 10 fast on the rod ll, acts to move quickly the engaging arm 10, and cause, through intermediate connections. the rocking of a bobbin cradle and the delivery of a bobbin nmch more quickly than has been done heretofore. Through the continued upward movement 01' the rod 28, a second cam shaped extension 44" on the collar el-l, engages the end of a set screw 52 on a stand 53, see Fig. 3, and causes the rod to move outwardly, as shown in Fig. t, and the puslrpin 38 on the lever 36, by engagement with the extension 4-1 on the collar 44, is moved outwardly, and the projection 28 on the upper end of the rod 28 is disengaged from the lever 4-6, as shown in Fig. 4-. The outward movement oi the push pin 38 restores it to its normal inoperative position. Extending outwardly from the lmb 4.8 is a second arm 48", adapted to be engaged by the upper end of the flattened portion 28 on the rod 28. to

move upwardly said arm 48, and lo movebackward thedownwardly extending arm 48, and allow it to be locked and held in its inoperative position by the hook lever 46, as shown in Fig. 2. The rod 28 is now free to be moved up and down until a substantially exhausted bobbin moves out the tceler 23, to allow the dagger 27 to drop to engage the lever 30, and the opcratioir above described is repeated.

The operation of my improvements is briefly as follows, reference being bad to Patent No. 948,568, above referrcd to; for the operation of the pattern, and shifting shuttle box mechanisms, not shown herein. hen the filling detector operates on account of the substantial exhaustion of filling in the active shuttle, one of the push pins will be moved into operative position, with its head 38 in the path of the upward movement of the cam 44 on the rod 23, and immediately thereafter. as the lay moves backward, the shuttle with the exhausted filling is thrown across into its shifting shuttle box; at the sametime the pattern mechan- Will moves, to determine whether the same shuttle shall return across the lay the next pick, or whether the boxes shall be shifted when a shuttle having another color of filling becomes active. After this movement 1 of the pattern mechanism, the rod 28 commences to-move upward, and if no movement of the shuttle boxes takes place, and the same shuttle remains active, the cam 44' contacts with the head 38 of a push pin 38 and moves the end 28 of the rod 28 to engage the projection 28 with the angle lever to, and cause the release of a filling carrier, by the engaging member 10, from a compartment having the same color of filling as that in the active shuttle, and the transfer of the fillin carrier into the shuttle which has arrived at that end of the lay under the t-ransferrer. If however, after the filling detector has set'a push pin 38 with its head 38 in the path of the upward movement of the cam 44', the pattern mechanism determines that another shuttle shall become active, causing another box to be moved to the race of the lay, then the push pin carrier 36 will also be moved, through its connection to the rod 11, carrying the operatively set push pin 38 to one side of the cam 44:, and bring the other push pin 38, which is in its inoperative position, opposite the cam surface 44, and the upward movement of the rod 28 will not engage the projection 28 with the angle lever 46, and no transfer of a filling carrier takes place. When the continued movement of the pattern mechanism determines that thoshuttle having a substantially exhausted filling carrier shall again become active, and bring its shuttle box into position, the push pin carrier 36 will also bring the operatively placed push pin 38 into the path ofthe cam 44', and as the shuttle with the substantially exhausted filling car-- rier is returned across the lay, the movement of the cam 44', will cause the transfer of its filling carrier into the shuttle, as it arrives under the. transferrer. If the fillin in the shuttle in the other shuttle box should be substantially exhausted while it is in active operation, the other push pin 38 will,

be set, and the filling carrier from the other compartment of the magazine will be supplied into the active shuttle having the substantially exhausted filling carrier, through connections to the rod 11 carrying the engaging member 10: The two compartments of the magazine, the two shifting shuttle boxes, and the push pin carrier 36, with its two push pins 38 will act in unison, to supply fresh filling from a compartment having the same color as that in the active shuttle.

The advantages of my improvements will be readily appreciated by those skilled in the art. They are of simple construction and can be readily applied to looms of the class referred to. i

It will be understood that the details of construction of my improvements may be varied if desired.

I do not limit my invention to the combination of my mechanism with the filling detector mechanism as herein shown, as my mechanism will operate equally well with any filling detector mechanism which will detect the substantial exhaustion of filling in the active shuttle, to cause a change of filling therein.

Having thus described my invention, what I claim as new and desire to secure by Let ters Patent is:

1. In a loom having a magazine with a plurality of compartments for filling carriers, a filling detector, a movable arm or carrier, a plurality of push pins carried by said arm, one push pin for each compartment, and means between the detector and. said .arm, to move one of the push pins into operative position upon the substantial exhaustion of filling in the active shuttle.

2. In a loom having a magazine with a plurality of compartments for bobbins, an engaging arm, horizontally movable past the cradle releasing rods of said compartments, means to move said arm downward, said ,means normally retained in aninoperative position by a hooked lever, a longitudinally movable rod, a push pin sup orted in a movable carrier, to move said 1'0 and release said hook lever and said engaging arm.

3. In a loom having a magazine with a plurality of compartmentsfor filling carriers, a push pin arm or carrier under the control of shifting shuttle box mechanism, and having a plurality of push pins, anyone of which is adapted to be pushed into operative position and cause the release of a filling carrier in its compartment.

4-. In a loom having a magazine with a 3 plurality of compartments for filling carriers, a push arm or carrier having a plurality of pins, each adaptedto be moved into an operative position, and yielding means to hold a pin in either an operative, or inoperative position.

5. In a loom having a magazine with a plurality of compartments for filling carriers, a push in arm or carrier having a plurality of pins, each having two circumterential grooves, and a spring actuatedone of said grooves, when a pin is in its inoperative position, and to enter the other groove when a pin is in its operative position. p

In a'loom having a magazine with a plurality of compartments for filling carriers, anengaging arm adapted to be moved both longitudinally and axially plunger to enter with said r0 and a hook lever to retain it 'in a normal position against the action of r20 with its carrying ,rod, a spring to move it axially leased from the hook lever, a second arm, a longitudinally moving IOtl to engage it and move said engaging arm into its normal position.

8. In a loom having a magazine with a plurality of compartments for filling carriers, a longitudinally moving actuating rod normally out of operative position, a push pin to move it into an operative position, a contacting projection on the opposite side of said rod to restore it and the push pin to their respective inoperative positions.

9. In a loom having a plurality of compartments for filling carriers, and shifting shuttle boxes, a push pin carrier having a.

number of push pins corresponding with the number of shuttle boxes, and intermediate connections between said push pin carrier and the shifting shuttle box mechanism, whereby the boxes and the push pins are nmved in unison, one with the other, and actuating means, nuule operative by one of said push pins, to release a filling carrier from a compartment having the same color of filling as in the active shuttle.

HORACE \VYMAN.

Witnesses MiNNA IIAAS, JOHN C. DnwnY.

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