USRE14767E - Stess as babbeb-colffia - Google Patents

Description

E. D. PARKER.'

KNOTTER.

APPLlcAnoN FILED SEPT. 9. Isls.

2 SHEETS-SHEET Reissned Dec. 9, 1919.

SPOOL BOBBIN THREAD mom sesam PATENT OFFICE.

EARLE PARKER, OF ROCKFORD, LLINOIS, ASSIGNOR TO HOWARD D. COLMAR',

LUTHER L. MILLER, AND HARRY A. SEVERSON, COPARTNERS DUING :BUSI- NESS AS BARBER-COLMAN CQMPANY, OF ROCKFORD, ILLINOIS.

KNOTTER,

Specication of Reissued Letters lfatent. R'eigsued Dec. 9, 1919.

'Original No. 1,111,758, dated October 2.,V 1917, Serial No. 772,439, filed June 7, 1913. Application" for reissue To allwhom it 'may concern:

. Be it known that I, EARLBD. PARKER, a citizen of the 'United States, residing at Rockford, in the county of lvinnebagqand '5 State of Illinois, have invented certain new. and vuseful Improvements in Knotters, of

which thefollowing is a specifition.

In the sp'ooling and other operations practised in'textile mills, it is necesary tol unite thr'eii'dsby means of knots, and it is "'d'esii, ablefhnttheknots shall be small and' flat, in foidifl*L mi the knots* shall not cause y hvublymlxyuste in thesubseqnent opera,-

In the accompanying drawings, Figure l is a side elevation of one form of knot-tying implement embodying my invent-ion and illustrating the manner in which it is used. Fig. 2 is a fragmental plan view showing how the threads are placed in operative relation to the implement.4 Fig. 3 is a. diagrammatic representation of a knot tied by means of the iniplen'ient. In Figs. 1 and 2 the parts of the implement are shown in the initial position. Fig. 4 is a fragmental plan view showing the parts in the position occapied after the rotary tying bill has mede a quarter-revolution. Fig. 5 is aview similar to Fig. 4, but showing the positions occupied when the tying bill has completed threefourths of a revolution. Fig. 6 illustrates theposit-ions occupied by the parts when the tying bill has made one and a` quarter re-volutions. Fig. 7 is a partial front view` Fig. 8 is a view of a shearing and clamping device comprised in the mechanism. Fig. 9 is a view of said device, upon an enlarged scale. Fig. 10 is a sectional View taken in the p'la'ne of dotted line 10 ot Fig. 9. Fig. 11 is a perspective view of the movable shearing and iso led September 9, 1918. Serial No. 253,340.

clamping jaw of said device. Fig. 12 is e sectional View of the shearing and clamping device showing the action thereof upon. thread. f i

The invention is herein shown as embodied in a. hand implement adapted for use' in uniting two threads, as, for example, a.

thread from a bobbin and a thread from a.

spool. The implement comprises a tyin bill -bodiment in various forms, I have heiein shown the n'iechanism as arranged to be snpported upon the hand of the operative by means of a loop similar to the one shown in. Patent No, 755,10, dated March 22, '1904, said loop comprising a handle A5 and a strap A?. A standard A. is rigidly Hxedto the handle A and l1s 'pro'\"ided with bearings for the Shaft C3 (Fig. (i) of the tying, hill (l5. Said tyingbill is provided with a pivotedlshe "h ing and clamping jaw C arranged te, ne moved to open and close the tying bill by means of a cam barrel is a spiral gear pinion C* (Fig. 6) that meshes with a spiral gear segment. BT (Fig. Said segment is rotatively monnt'ed upon a stud B which fixed' to theJiz'i-ndle A". Fixed to the hab ot the gear segment is a thumb for B5 by means, of which the. segment may be oscillated to rotate the tyin'nr bill in one direction through one` and a hal revolutions and in the opposite direction to the initial position. v 'i e I I The means herem shown for tjghtcn1ngtied. namely, the thread .extending from the bobbin.. A coiled spring it? tends te held the..

arm IE in its initial. position, such 'position being determined by, contact of the arm 'with' a Stationary stop Af.'

On the shaft C3V reo - operative stroke, the spring latch A thread-clamping arm D, provided at its forward end with two upwardly-extending clampin fingers D7 that lie at opposite sides of the holding arm E, is pivoted at its rear end to one arm of a bell crank D* that swings on the axis D. The other arm of the bell crank is provided with a roller stud that lies in a cam groove Bf (Fig. 6) formed in an arcuate flange B9 which is fixed with relation to the gear segment B7., The shape of the cam groove Bs 1s such as to cause the bell crank D* to swing back and forth with each stroke of the thumb-fork B". During the operating (i. e., downward) stroke of the thumb fork, the arm D is advanced so as tol cause the fingers. D1 to clamp the thread lying in the hook E11 of the arm E. As the arm D advances, a spring'latch E* (Fig. 4) on the arm E enga es a stud D on the bell crank D, so that W en the movement of the bell crank is reversed the arm E is caused to move with the bell crank and the arm D (as in Fig. 6) in which movement the said arms swing laterally awa-y from the tying bill to tighten the loops and strip thev knot off the tying bill. As the thumb fork com letes its engaged from the pin Dta by means of a stop pin A". i

At the, side of the tying bill, opposite to the arms E andD", is a stationary thread guide C for the thread extending from the bobbin.

All the parts thus far described are substantially identical with the parts bearing corresponding reference characters in the before-mentioned patent (with an exception to be presently noted), but I wouldliave it understood that my invention is Ynot limited to the'form and arrangement of the parts as just described.

vThe position of the hook E11 with reference to the tying bill issuch that the tying billf'in its revolution cannot engage the portion ofthe bobbin thread that extends between said hook and bill.

For supporting the thread extending from as, for example, a bracket 1 (Fig. 7) fixed to a frame member 2, said frame member'being rigidly fixed to the standard A. Upon list the bracket 1 is a thread clamp 3 which may consist, as herein shown, of a jaw 3* fixed to said bracket, and a .co-acting spring jaw 3b attached to the bracket, said jaws having Haring forward ends to facilitate the insertion'of the thread into the clamp'. A pin 4 fixed tothe javv- 3a and extending through a perforation in the jaw 3" limits theextent to which the thread may be inserted into the clamp. The clamp 31s located forwardly of Vt e notchedto form a guide 5 for the thread extending from. the spool. The clamp 3 may f is dis-v Herein I have shown t e jaw 9 as tying bill C". The bracket 1 is y also be termed a guide or supportfor the spool thread..

The tying bili C, in addition to forming the loops of the knot, serves to shear or trim off the waste end of the thread extending from the bobbin. -The waste end of the thread comin from the spool is cut off by a device 6 (Fig. 8) which, in the form herein shown, comprlses a clamping jaw A7,'a

jaw- Sand its attaching sha'nk are substantially similar to the bill spring C7 described in the patent referred to. Said shank is rem ovably held in place by a sleeve 11.

The guiides 3 and 5 are spaced apart, and the bottom of. the notch of the-guide 5 is below the horizontal plane of the in 4, so

that the portion of the s ing between the tying blll and the guide 5 is below the Any suitable means. may be provided for Aadvancing the device 6 to gras the strand a memberl fixed to the arm D. Thus,

when the arms E. and D swing outwardly to tighten. and strip the knot, the device 6 is advancedtograsp the portionvof the spool lthrea extend-V rtion extending between the'` tyingbill an the guide 3.

guide 5. Herein I have shown said device thread which 1s to be severed, namely, thev portion extending between the knot and the guide 5.

The jaw 9 may be swung to shear, clamp and release the threadb any suitable means. provided with an arm 1 6 bearing an anti-friction roller 17, which roller runs in contactwith a.v

cam surface consisting of a depression- 18 and a dwell 19. When'the roller 17 is in Athe depression 18, the 'jaw.9 is in the open position. "As the roller passes out ofl said depression, the jaw 9 is moved to shear and clamp tliethread, the'clampingaction continuing while the roller is upon the dwell 19.

Assuming the implement to be mounted upon lthe left hand-of a spool'er tender and the mechanism to be in initial position (i. e., in theposition shown vin Figs. 1 and 2), the threads are manipulated as follows:

When it is desired to unite the end of the thread upon a bobbin to. the end of the thread upon a spool, the operative lays the end of the bobbin threadacross the palm of' the right hand, the vloose end projecting beyond the thumb, and t-he hand being held palm side up. The rotation of the spool is then stopped by placing the left hand on the top of the spool, and the end of the spool thread found and placed in the palm of the right hand, the loose end projecting slightly beyond the little finger. The right hand, being still held palm side up, is raised and the spool thread placed in the clamp 3. rIfhe right hand is then turned toward the left to lay the bobbin thread in the hook E11 and behind the tying bill and in the guide C1.

hook E, behind the tying bill. and into the` guide C, and the spool thread is doubled over the bobbin thread, both strands of the spool thread lying at the same side of the tying bill, namely, at the side toward which t e tying bill turns when beginning its revo-` lution. The operative then depresses the thumb fork B with the thumb of the left hand. As soon as the tying bill and the device 6 have clamped the threads, the operative drops the loose ends, takes hold of the united threads, draws said threads out of the clamp 3 and removes her hand from the spool.

The operation of the mechanism may be briefly described as follows:

Depression of the thumb fork B causes the tying bill to rotate counter-clockwise, thereby engaging the ldoubled spool thread and coiling the threads around the bill. By the time the tying bill vhas reached the position shown in Fig. 5, the bill has been opened so that in the continuing rotation of the bill it grasps the portion of the bobbin, thread which extends between the tying bill and` the guide C1". During the ensuing half revolution, the bobbin thread is sheared andI` clamped by the tying bill, and the device 6 is advanced to grasp and shear the portion of the spool thread which extends between the tying bill and the guide 5. The bobbin thread has also been clamped by the fingers D" and hook En, and the arm E and D have swung laterally, thus pulling the loops of the knot onto the point of the tying bill. AAs the'arms E and Di and the device 6 continue to move laterally, the loops of the knot are pulled off the tying bill and drawn tight, and the thread end finally pulled out of the tying bill. The end clamped in the device 6 is released as said device is lnoved with the arm E into the initial position by the spring E. Tl-=` operative then swings the thumb fork B5 up to the initial position, thereby restoring the parts of the mechanism to their initial positions, A

The invention is not limited to mecha- The right hand is then turned., farther toward the left and brought forward,

nisms intendedto be mounted upon the' hand of the operative.

I- claim as my invention:

A 1. In a' knot-tying mechanism, in combination, a rotary tying bill; means for. sup.

porting'a thread extending across the tying bill,` said bill being adapted to shear and clamp said thread; means for supporting a thread which is doubled over the other thread; a shear forA severing avportion of said. doubled thread; means for revolving the tying bill againstv the doubled thread, the

otherthread being. thereafter caught by the tying'bill and sheared and clamped and means for actuating the shear, In a knot-tying mechanism, in combi nation, arotary tying bill; means for supporting a thread extending across the tying bill, said bill being adapted to shear and clamp said thread; two thread guides for supportingl a thread which isv doubledv over -l the other thread, vsaid guides being'spaced apart soas to support the, strands of the' I doubled thread at an angle to each other; means for shearin ing the tying bill and the shearing means.

3. In a knot-tying mechanism, in 'combination, a rotary tying bill; an oscillatory thread-holding arm adapted to `clamp the thread and move away from the tying'bill to tighten the knot and strip the thread froml the tying bill; means for supporting a thread which is doubled over the other thread; means for lshearing a Iportion of said doubled thread; and means for rotating said tying bill and for moving said arm, and for actuating said shearing means.

4. In a knot-tying mechanism, in combination, a rotary tying bill; means for supporting a thread extending across the tying bill, said bill being adapted to shear and `clamp said thread; two thread guides for supporting a thread which is doubled over the other thread, one of said guides being below the other; means adapted 'to shear the tying bill shaft, and the other guide' being below said plane; means adapted to shear the strand held by the lower guide; and means for actuating said tying bill shaft and said shearing means.

6. In a knot-tying mechanism, in combination, a rotary shaft: a tying bill at the forward end of said shaft; an oscillatory one or' said strands of the doubled threa and means for actuat which is doubled over the other t the side of the tying bill opposite to said' a thread read; one tides being in the horizontal plane hook; two guides for supportingl ofl said of said s iaft and above the other guide, said uides for the doubled thread being located orwardly of. the tying bill; a device for shearing and clamping the strand extending 'to the lower guide, said device comprising a pluralit of shearing and clamping jaws;

' means or opening and closing said jaws;

means for rotating the .tying bill shaft;

means for oscillating the Ithread-holding arm to move said hook 4away from the tyin bill to tighten the knot and strip the threa from the tying bi1land a connection between said arm an said devicev whereby when the thread-holding arm moves to tighten the knot and strip the thread, said Vdevice will be advanced to (grasp the strand extending to the lower gui and shear and clam sald` strand. A

7. Iln a knot-tying'mechanism, in oombination, two thread guides, a tying bill located between said guides, a thread clamp and a third thread guide positionedadjacent each other at one side of said .tying bill, thread shearing and clamping mechanism adjacent said third guide, and means for o rating said 'bill and s'aid shearing and c am ing mechanism.

' 8. n a knot-tying mechanism, inl combination, two thread guides, a rotary tying bill positioned between said guides, said bill comprising thread shearingqand clamping means, `two bther thread guides supported adjacent each other and `at one side of said tying bill, said other'guides serving to lsupport a thread which is doubled over a thread carried by the first mentioned guides, shearin and clamping means adjacent one of said other guides, means for revolving the tying bill against the doubled thread, the other thread bein lthereafter caught by the tying bill ands eared and clamped, and

means for actuating the second mentioned shearing and clamping means. 9. In a knot-tying machine, in combina.- tion, two thread supporting guides, a tying bill located between said guides, said bill heing arranged to shear and clamp a thread extending across said guides, two adjacent thread guides .located at one s ide of said bill for supporting a thread which is doubled over the other thread', thread shearing means located adjacent' one of saidadjacent guides,

and means for o rating said bill to coil beth threads an to. sever the rst fth'read; a shear for severing a said doubled thread; und means or `actuat tioned thread, and for operating vthe shearmg means to sever the other thread.

10. In a knot-tying mechanism, in combination, a thread guide, a thread clampin member coperating with said guide, a secon threadguide, a tym bill located between said guides, said bi1 being arranged to shear and lclamp a thread, a thread clamp and a thread guide adjacent to each other nation, a rotary tying bill; two guides foisu porting a thread extending across the tylng bill, said bill being adapted to shear and clamp said thread,said guides being lof cated at opposite sides of the bill, the guide which is at the side towardwhich the bill first turns being arranged to hold the thread out of reach of the bill; two guides located forward of the tying bill for supportin a thread which is doubled over the ot er rtion of ing th'e tying bill and the shear.

' 12. In a knot-tying mechanism, in (-,ornhi-i nation, a rotary tying bill; two guides for supporting a threadextending across the tying Ibill, said bill being adapted to shear and clamp said thread, said guides being located at opposite sides of the bill ,the guide which is at the side toward which the bill first turns being arranged to hold the thread o ut of reach-of the'bill; two thread guides for supporting a thread which is doubled over the othei thread, said last mentioned two Sides 'being spaced a art so as to support strands of the doub edthread at an angle to each other; a shear 'for severing one of said strands of -the doubled thread; and means for actuating the tying -bill and the shear.

13. In a` knot-tying mechanism, in combi- ,i nation, a rotarytyii bill; an oscillatory threadholding -arm apted to clam 1 the thread and move away from the tying ill to tighten ,the knot and strip the thread from the tying bill, said arm-being located at the side toward which the bllfirst turns and being arranged to hold the thread out'of reach of the bill; a guide 4for; said thread at the opposite side of the bill; means for supporting a thread. which is doubledy over the otherthread; a shearfor severing a portion of said doubled thread; and means for rotating said tying bill, for moving s aid arm, and for actuating said shear.

14. In a knot-tylng mechanism, combination, a rotary tying bill; means for supporting a threa'diextending across the tying bill', saidbill being adapted to shear and clamp said thread; two thread gnides for supporting a thread which is doubled over the other thread, said bill being arranged to revolve against said doubled thread, one of said guides being below the other; a shear adapted to advance to grasp and sever the strand that lies in said lower guide; and means for actuating the tying bill and the shear.

15. In a knot-tying mechanism, in combination, a. rotary shaft; a tying bill on said shaft; a movable knot-tightener and stripper and a stationary guide for supporting a thread extending across the tying bill, said bill being adapted to shear and clamp the portion of said thread which extends to said guide, two thread guides for supporting a thread which is doubled over the other thread, one of said last mentioned two guides being in the horizontal plane of the tying bill. shaft, and the other guide being below said plane; a shear aranged to advance to grasp and sever the strand held by the lower guide', and means for actuating said tying bill shaft and said shear.

16. A knot-tying mechanism having, in combination, a rotary tyin bill, a thread guide at one side of said ill, a movable knot-tightener 'and stripper at the other side yof the bill, said knot-tightener and stripper being arranged to support the thread out of reach of the tying bill, two guides located forward of the tymg bill for supporting a thread which is doubled over the other thread, a shear for severing a'portion of said doubled thread, said shear being connected to move with the lmot-tightener and stripper, said shear comprising a movable jaw, and means for actuating said jaw.

17. A knot-tying mechanism having, in

Y, porting a thread Whic ing a movable jaw, and a cam for actuating said jaw in-the movement of the shear.

18. A knot-tying mechanism having, in combination, a rotary tying bill, a guide and a movable knot-tightener and stripper for supporting a thread extending across the tying bill, said bill being arranged to shear andgclamp the portion of said thread Which entends to ,said guide, two stationary guides lo'cated forward of the tying bill for supporting a thread which is doubled over the other thread, the tying bill being arranged' to revolve against the doubled thread, and a shear for severing a portion of said doubled thread. I

19. A knot-tying mechanism having, in combination, a rotary tying bill, a guide and a movable knot-tightener and stripper for supporting a thread extending across the tying bill, said bill being arranged to shear and clamp the portion of said thread which extends to said uide, means for sup is doubled over the other thread, the tying bill being arranged to revolve against the doubled thread, and

a shear for severing a .portion of said doubled thread.

20. A knot-tying mechanism having, in combination, a tying bill arranged to revolve against a thread which is doubled over another thread, said bill being arranged to shear vand clamp said other thread, a shear for severing a portion of the doubled thread, anda device to strip the threads from the tying bill.

21. In a knot-tying mechanism, guides for supporting two threads, one of which threads is doubled over the other, and mechanism for coiling the doubled thread, grasping the other thread, and shearing both threads.

22. In a knot-tying mechanism, in combination, guides for supporting two threads, one of which-threads is doubled over'the other, -a tying bill for coiling the doubled c thread and grasping and shearing the other thread, and a device for shearing one strand of the doubled thread.

In testimony whereof I have hereunto set my hand.

EARLE D. PARKER

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