US672636A - Knot-tying implement. - Google Patents

Description

No. 672,636. Patented Apr. 23, IQOI.

' H. D. COL MAN.

KNUT TYINGIMPLEMENT.

(Application Bled Feb. 20. 1901.; (No Model.)

4 Sheets-Sheet I.

TN: wams Pmns ou.. Puma-umu. 'vusumm'omp c.

N0'. 672,636. Patented Apr. 23, |90l. H. D.`COLMAN.

KNUT TYING IMPLEMENT.

(Application filed Feb. 20, 1901 (No Model.) 4 Sheets -$hee't 2.

unimi n Mn mi NoRmS PETERS mara-umu.. w'AsMmoToN, u, c.

Patented Apr. 23, 190|.

H. D. CDLMAN.

KNOT T YING IMPLEMENT.

Application mea Feb. 2o, 1901.,

4 Sheets-Sheet 3.

(N; Modal.)

Er .7 .r-Fs ...L Fi

l l a No. 672,636. Patented Apr. 23, 190|.

H. D. COLMAN. KNoT TYING IMPLEMENT.

(Application filed Feb. 20, 1901.|

(No Modell) 4 Sheets-'Sheet 4.

Tn: konnt PErERS w., moroLrmo.. wmumon. u c.'

`NETE STATES HOWARD D. COLMAN, OF ROCKFORD, ILLINOIS.

KNOT-TYING INIPLEIVI ENT.

SPECIFICATION forming part f Letters Patent No. 672,636, dated April 23, 190] Application filed February 20, 1901. Serial No. 48,118. (No model.)

To cti/Z whom it may concern:

Be it known that I, HOWARD D. COLMAN, a citizen of the United States, residing at Rockford, in the county of Winnebago and State of-Illinois, have invented certain new and use-` ful Improvementsin Knot-Tying Implements, of which the following is a-specication.

One object of this invention is the produc-l tion of a hand-mounted manually-operate knot-tying implement. i i

A further object is the improvement of knottying mechanism generally.

The embodiment herein shown of my in-` depending upon the tension ou the threads and the friction of the latter in the stripperarm for holding said threads in engagement with said arm. The implement is intended to be worn constantly on the left hand of the operator and its mechanism to be operated by a lever adapted to be engaged by the Fig. 4 is a detail View showing the position of the thread upon the tying-bill after the loose ends have been severed and the knot is about to be pulled off from the end of said bill by the stripper, Fig. 5 is a View after a full revolutionfrom Fig. 2 and just before the thread is pulled by the stripper from the clampingjaw of the tying-bill. Fig. 6 is a side elevation of the mechanism, taken from the cam side of theimplement, the parts beingin their normal or starting positions. Fig. 7isasimilar view taken from the opposite side of the implement. mechanism.

Fig. 8 is a rear elevation of the Figs. 9 and 10 are sectional detail views of the rotatable tying-bill and the cam-cylinder which operates the cutting and clamping jaw. Fig. 11 is a front end view of the cam-cylinder. Fig. 12 is a plan View of the sector cam-gear. Fig. 13 is a view of the stripper mechanism,showing it detached from the body of the implement; Fig. 14 is an enlarged detail view of the tying-bill. Fig. 15 is a transverse section through the threadholding arms E2 and F, showing the springlat-ch F5 and the surrounding parts in detail. Figs. 16, 17, and 18 show a modified form of my knot-tying mechanism. Fig. 16 is aside elevation, Fig. 17 a front elevation, and Fig. 18 a top plan View, of the mechanism embodying said modification.

Like letters of reference indicate correspondin g parts throughout the several vie Ws.

In the construction of this implement I provide a standard A, having the integral overhangiug arms A at its upper end and the transverse sleeve A2 at its lower end. A clip A2 surrounds said sleeve A2 and is adapted to have frictional engagement with the outer surface oi' the sleeve by means of the clamping-screw A4. The clip A3 has a downwardlyextending stem A5, intended to lie within a suitable opening in the handle A6 and be held rigidly in position therein by the set-screw A7. The handle A6 is provided with a han dle-strap A8 in loop form for surrounding the hand of the operator, and this loop is made adjustable in size in order to fit the hand of any person. I have shown a buckle for providing this adjustment; but any suitable means may be employed for this purpose. It will be noticed that the stem A5 may be turned with relation to the handle A6 and the sleeve A2 in the clip A3 in order to secure an adjustment of the implement to accommodate it to hands of different forms.

A shaft B is free to oscillate within the sleeve A2. At one end this shaft is enlarged and there carries the thumb-fork B', frictionally secured on the end of said shaft by its integral collar B2 and the clamping-screw B8. At its opposite end the shaft B carries the sector cam gear B4, pinned to said shaft. The cam-groove B5 of the sector cam-gear is cut in the peripheral face of the sector, and the teeth of the gear are of skew-gear form. The cam-groove B5 is of an outline somewhat resembling that of the letter U with its arms IOO the teeth of which are skewed to corre-4 spond with 'those of the sector cam-gear B4. The pinion C is aiiixed to the shaft in any suitable manner. I have shown it as frictionally engaging said shaft; but it may be positively secured theretoin anydesired way.

This pinion C is provided with a long hub to occupy wholly the space upon the shaft C between the supporting-arms A', and thus prevent end movement of said shaft.

The forward end of the knetter-shaft C is attened on one of its sides rand rbent substantially at right angles toits length, forming the tying-bill C2. being parallel with thatof the flattened surface of the tyingsbi-llvC2, is formed in said bill and said shaft C, and within said slot ispiv otally mounted the shearing and clamping jaw C4. The lower part of this jawisEin wing form, adapted toiengage the interior wallsof the cam-cylinder C5, 'which latter is rigidly mounted on the standard A. This earn-cylinder isset eccentric to the knetter-shaft C, and its inner form is slightly elliptical in order to produce the proper movement of the shearing and clamping jaw C4, the wing of` 1said jaw engaging said internal cam. Thev flattened side' of the tyingbill02 is provided with a shear edge within theslot C5 and the jaw C4, pivoted in said slot G5, vwith a corresponding shear edge. The opposite edge of said -jaw is rounded slightly, so that the latev ter will clamp, while the opposite edge sevi ers the ends of the threads in ythe .tying-bill. :I .have now described the mechanism for forming the knot and cutting the thread. 1I,

will next describe thestripper mechanism.

`A supporting-plate Dis secured to the top of the standard A and is provided with the fixed forwardly-extending 4guide-arm D for -thethread Rearwardof the guide-arm D `is the vertical bearing-sleeve D2, and near the opposite edge of the supportingplate -D isan upwardly-extending releasing-.stud D3 for a purpose to be mentioned later herein. A stop-stud D4 at the forward edge of the supportingplate4 limi-ts the forward move- 4ment-of the stripper mechanism.

latory shaft E is adaptedto'lie within Ithevertical bearing-sleeve D2, and this shaft carries the -two crank-arms E and E2, fixed 4to said shaft.

The slot C5, its plane y 'ticity tends to hold thesaid arms apart. :stopstud D4limits the yforward lmovern ent of An oscilcorrespondingpositive movement of the os cillatory shaftand the arms E2 and Et.

F is a thread-holding arm loosely mounted by means of its integral ears F on the oscillatory shaft E and having its outer portion F2 bent at an angle with the plane of the body portion thereof. T-heforward end of the outer portion F2 of said thread-holding arm is formed into a .rearwardly-extending guidearm F5 for the thread, between which arm and the fingers E5 the thread is clamped during the last part of the knot-tying operation when the knot is being drawn tight and stripped from the tying-bill. The fingers E5 embrace the said outer portion F2 of the thread-holds ing arm F, onetinger lying on each side thereof. A spring F4, coiled aboutthe oscillatory shaft E, .is att-ached' at its ends vto thearm E2 andthethread-holdingarrn =F,and"byits elas The the thread-holding arm F, and the an'tiffric- Mtion-roller E5 on thearnrE, engaging the `rear rand thel arm together,a spring coiled about the pivotal stud `Ften'ding to hold said latch in engagement with lthestud. T-heflatch F5 has an .integral arm F7 extending substantiallyat right `angles thereto, `and a pin F5, fixed in said arm F7, extends downward through a Vslightlyelongated opening F9 in.

thelthread-holding arm F into a `position to4 be engaged by the upwardly-extending,Areleasing-stud D5, which stud bydelaying said pin rocks the latch :F5 on .its pivot and withdraws it from .its engagementwfith rthe stud The pin .Fswhen so rocked lis at theend of the elongated opening-F9, and furtherrearward movement of the arm Fis thusstopped.

IIO

Thearrn E2, however, vmoves rearwardslightly farther to positivelypull the fingers E5fron1 engagement with the guide-arm F5, between which l'fingers and arm the thread is'wedged. X/Vhen this 4is done, the spring F4 separates 4thearm E2 and the thread-holding arm F, the

for-mer seeking its rear .mostand -'the latter its vforemost position. The guide-arm F3 is formed a little thicker than the thread-holding arm F, sothat while the fingers E5 slide freely on the body of said arm they will tightly engage the guide-arm in order -there sto -rrnly grasp the thread.

In the operation of the implement the left hand of the operator is slipped within the' handle-strap A8, the loop being adjusted to the size of theoperators hand. The thumb is placed .with-in the thumb-fork B' and the latter thrown in-to the position it is shown to occupy in Fig. 6, its highest position. The ends of the thread Yintended to be united lying side 'by side are then drawn with the right -hand of the operator over the outer-vend F2 of the thread-holding arm F and the guidefork B moves the sector cam-gear B4, and

this rotates the knotter-shaft C by reason of its skew-gear engagement. The first quarter of a revolution of the tying-bill C2 turns it into the position indicated in Fig. 2, the point of the bill lying over the threads. During this quarter of a revolution of the knottershaft C the' sectorcam-gear B4 is turn ed, causing the roller E5 on the arm E' to travel outward a little distance in the cam-groove B5, oscillating the shaft E and moving forward the arm E2 and the pivotal arm E4, with its clamping-fingers E5, the latter sliding forward one on either side of the outer portion F2 of the thread-holding arm F, as shown by Fig. 2Y of the drawings. Continued downward movement of the thumb-fork continues the forward movement of the clamping-fingers E5 until as the roller E5 reaches the lowest point in the cam-groove B5 the fingers E5 coincide with and embrace the outer end of the thread-holding arm F, clamping the thread between the fingers and the guidearm F5, and during the same time the stud E is moved into engagement with the springlatch F5, locking the arm E2 and the threadholding arm F together, as shown by Fig. 3 of the drawings. At this point the tying-bill has been rotated through three-quarters of a revolution, and by reason of the interior conformation of the cam-cylinder C5 its shearing and clamping jaw C4 is open, ready to receive the `thread during the next quarter-revolution.

Continued downward movement of the thu mbfork B throws the uptending or return side of the cam-groove B5 into contact with the roller E5, `and as the tying-bill is turned into the positions indicated in Figs. 4: and 5 the threadholding arm F and the arm Egare thrown backward and outward, stripping the knot from the end ofthe tying-bill, the cam-surface within the cam-cylinder C5 having previously closed the shearing and clamping jaw C4 to cut off the threads and to hold the short ends thus formed while the knot is being stripped off the tying-bill by said backward movement ot' the clamping-lingers E5 with the threadholding arm F. When the tying-bill-reaches the positionA indicated in Fig. 5, the ends of the thread will be pulled from the bill, and the pin F5, having now engaged the releasingstud D3, further rearward movement of the arm E2 causes the latch F5 to be disengaged from the stud E5 and the fingers E5 to be withdrawn from the guide-arm F5, whereupon the spring F4 throws the thread-holdingr arm into its forward position against the stop-pin D4. The thread is now free to be withdrawn and the thumb-fork B is again thrown upward into its initial position, as indicated in Figs. 6, 7, and 8. During this upward movement of the thumb-fork B the mechanism is operated as just described, except that the knotter-bill is rotated in the opposite direction. The arm E2and the thread-holding arm F will be engaged and moved backward together until the pin F8 encounters the releasing-stud D5, when the latch F5 will release the stud E6, and the thread-holding arm F will be thrown into its forward position by the spring F4.

In the modified form shown in Figs. 16, 17, and 18 the construction is considerably simplified by the omission of the mechanism for grasping the threads when stripping them from the tying-bill. In this modified form an oscillatory stripping-arm G has a bell-crank G in the cam-groove B5 of the sector camgear B4. The cam-groove B5 in the modified form is made straight at one end. Therefore it will be seen that the stripping-arm G will have a positive oscillatory movement backward and forward with relation to the tyingbill. When the thumb-lever B is in its upward or normal position, the stripping-arm G will be adjacent to the tying-bill; but when the thumb-lever B is at its lowest position the stripping-arm G will stand at a little distance from the tying-bill. The tension of the threads from the spools (not shown) and the friction of said threads in the thread-guide of the oscillating stripper-arm G cause the knot to be tightened and said threads to be stripped from the tying-bill C2when the oscillating arm Gis moved outward from said tying-bill. The operation of the modified form is the same as hereinbefore described.

I claim as my inventionl. In a knot-tying implement, in combination, mechanism for automatically forming a knot; means for securing said mechanism to the hand ofthe operator; and means for manually operating said automatic mechanism to form a knot.

2. In a knot tying implement, in combination, mechanism for automatically forming a knot; means for securing said mechanism to the hand of the operator; and means for digitally operating said automatic mechanism to t'orm aknot.

3. In a knot-tyingimplement, in combination, mechanism for automatically forming a knot; means for securing said mechanism to the hand of the operator; and a lever adapted to be manually operated, for operating said automatic mechanism.

4. In a knot-tying implement, in combination, a knot-forming mechanism; means for securing said mechanism to the hand of the operator; and a lever adapted to be digitally operated, for operating said knot-forming mechanism. i

5. In a knot-tying implement, in combination, a knot-forming mechanism; means for securing said mechanism to the hand of the operator; and means adapted to be operated by a movement of a digit of the hand to which IOO IIO

the implement is secured, for operating said knot-forming mechanism.

6. In a knot-tying implement, in combination, a knot-forming mechanism; means for securing said mechanism to the hand of the operator; and 'means adapted to be operated by a movement of the thumb of the hand to which the implement is secured, for operating said knot-forming mechanism.

7. In a knot-tying implement, in combination, a knot-forming mechanism; means for securing said mechanism to the hand of the operator; and a' lever adapted to be operated 'bya movement of a digit of the hand to which the implement is secured, for operating said knot-forming mechanism.

8. In a knot-tying implement, in combination, a knot-forming mechanism; means for securing said mechanism to the hand of Vthe operator; and a lever adapted to be operated by a movement of the thumb of the hand to which the implement is secured, for operatingsaid knot-forming mechanism.

9. In a knot-tying implement, in combination, a knot-forming mechanism; means for 'securing said mechanism to the hand of the operator; anda pivoted arm adapted to be operated bya movement of the hand to which the implement is secured, for operating said knot-forming mechanism.

l0. In av knot-tying implement, in combination,V a rotatable tying-bill; means forsecurving'said tying-bill'tothe hand ofthe operator;

and means 'adapted t0 be manually operated,

for rotating said tying-bill to form a knot.

11. In a knot-tyingimplemennin'combination, a rotatable tying-bill; means for'secur` ing said tying-bill to the hand of the'operator; and means adapted to be digitally operated' for rotating said tying-billto form a knot.

12.Y In a knot-tying implement, in combination, a rotatable tying-bill; means for securing said tying-bill to the'hand of theoperator; and a lever adapted to be manually operated for rotating said tying-bill.

13. In a knot-tyingim'plement, in combina- 'and means adapted to be operated by a move- `ment of a digit of the hand to'which the implement is secured, for rotating said tyingbill.

15. In a knot-tying implement, in combination, a rotatable tying-bill; means for securing said tying-bill to the hand of the operator;

and means adapted to be operated by a movement of the thumb of the hand to which the implement is secured, for rotating said tyingbill.

16.' In a knot-tying implement, in combination, a rotatable tying-bill; means for securing said tying-bill to the hand of the operator; and a lever adapted to be operated by a movement of a digit of the hand to which the implement vis secured, for rotating said tyingbill.

17. In a knot-tying implement, in combination, a rotatable tying-bill; means for securing said tying-bill to the hand of the operator; and a lever adapted to be operated by a movement of the thumb of the hand to which the implement is secured, for rotating said tyingbill.

18. In aknot-tying implement, in combination, a rotatable tying-bill; means for securing said tying-bill to the hand of the operator; and a pivoted arm adapted to be operated by a movement of the hand to which the implement is secured, for rotating 'said tying-bill.

19. In a knot-tying implement, in combination, a knot-forming mechanism; means for securing said mechanism'to the hand of the operator; intermeshing gear for operating said knot-forming mechanism; and means adapted to Vbe manually operated for driving said gear.

20. Ina knot-tying implement, in combination,'a knot-forming mechanism; means for. lsecuring said mechanism to the hand of 'the operator; intermeshing gear for operating said `knot-formingmechanism; andmeans for digitally driving-said gear.

2l. In aknot-tying implement, incombination, Ia `knot-forming mechanism; means for `securingsaid mechanism to thehand of the operator; intermeshing Vgear `tor 'operating Said knot-forming mechanism; anda lever adapted'tobe manually-operated for driving said gear.

22. In a'knot-tying implement, in'combination, la knot-forming mechanism; means 'for securing said mechanism to the hand of the operator; intermeshing gear for-operating said knot-forming mechanismyand Valever adapted to be digitally operated for `driving said gear. 23. In a knottyingimplement, in combination, a knot-forming mechanism; means for IOO IIO

securing-said mechansmto thehand of the said knot-forming mechan1ism;and means adapted to be operated by a movement of the thumb of the hand to which 'the implement is secured, for driving said gear.

25. Ina knot-tying implement,`in'combina tion, a knot-forming mechanism; means for securingsaid mechanism to the hand of the operator; intermeshing gear for operating :said knot-forming mechanism; and a lever IZO adapted to be operated by the movement of a digit of the hand to which the implement is secured, for driving said gear.

26. In a knot-tying implement, in combination, a knot-forming mechanism; means for securing said mechanism to the hand of the operator; `intermeshing gear for operai ing said knot-forming mechanism; and a lever adapted to be operated by a movement o the thumb of the hand to which the implement is secured, for driving said gear.

27. In a knot-tying implement. in combination, a knot-forming mechanism; means for securing said mechanism to the hand of the operator; intermeshing gear for operating said knot-forming mechanism; and a pivoted arm adapted to be operated `by a movement ofthe hand to which the implementis secured, for driving said gear.

28. In a knot-tying implement, in combination, a rotatable tying-bill; means for securing said tying-bill to the hand of the operator; intermeshing gear for rotating said tying-bill; and means adapted to be manually operated for driving said gear.

29. In a knot-tyingimplement, in combination, a rotatable tying-bill; means for securing said tying-bill to the hand of the operator; intermeshing gear for rotating said tying-bill; and means adapted to be digitally operated for driving said gear.

30. In a knot-tying implement, `in combination, a rotatable tying-bill; means for securing said tying-bill to the hand of the operator; intermeshing gear for rotating said tying-bill; and a lever adapted to be manually operated for driving said gear.

3l. In a knot-tying implement, in combination, a rotatable tying-bill; means for securing said tying-bill to the hand of the operator; intermeshinggear for rotating said tying-bill; and a lever adapted to be digitally operated for driving said gear.

32. In a knot-tying implement, in combination, a rotatable tying-bill; means torsecnring said tying-bill to the hand of the operator; in termeshing gearfor rotating said tying-bill; and means adapted to be operated by the movement of a digit of the hand to which the implement is secured, for driving said gear.

33. In a knot-tying implement, in combination, a rotatable tying-bill; means for secu ring said tying-bill to the hand ot the operator; intermeshing gear for rotating said tying-bill; and means adapted to be operated by a movement of the thumb of the hand to which the implement is secured, for driving said gear.

34. In a knot-tyingimplement, in combination, a rotatable tying-bill; means for securing said tying-bill to the hand of the operator; intermeshing gear for rotating said tying-bill; and a lever adapted to be operated by a digit of the hand to which the implement is secured. for driving said gear.

35. In a knot-tyingimplement, in combination, a rotatable tying-bill; means for securing sai d tying-bill to the h and of the operator; intermeshi ng gear for rotal ing said tying-bill; and a lever adapted to be operated by the thumb of the hand to which the implement is secured, for driving said gear.

36. In a knot-tyingimplement, in combination, a rotatable tying-bill; means for securing said tying-bill to the hand of the operator; interm eshin g gear for rotating said tying-bill; and a pivoted arm adapted to be operated by a movement of the hand to which the implement is secured, for driving said gear.

37. In a knot-tying implement, in combination, a knot-forming mechanism; mechanism adapted to tighten the knot; means for securing said knot-forming mechanism and said knot-tightening mechanism to the hand of the operator; and means adapted to be manually operated for operating the knot-forming mechanism and the mechanism for tightening the knot.

38. In a knot-tying implement, in combination, a knot-forming mechanism; mechanism adapted to tighten the knot means for securing said knot-forming mechanism and said knot-tightening mechanism to the hand. of the operator; and means adapted to be operated by the movement of a digit of the hand to which the implement is secured, for operating the knot-forming mechanism and the knot-tightening mechanism.

39. In a knot-tying implement, in combination, a knot-forming mechanism; mechanism adapted to tighten the knot; means forsecuring said knot-forming mechanism and said knot-tightening mechanism to the hand of the operator; and means adapted to be operated by the movement of the thumb of the hand to Which the implement is secured, for operating the knot-forming mechanism and the knot-tightening mechanism.

40. In a knot-tying implement, in combination, a knot-forming mechanism; mechanism adapted to tighten the knot; means for securing said knot-forming mechanism and said knot-tightening mechanism to the hand of the operator; and a lever adapted to be moved by the thumb of the hand to which the implement is secured, for operating the knotforming mechanism and the knot-tightening mechanism.

4:1. In a knot-tying implement, in combination, a knot-forming mechanism; mechanism adapted to tighten the knot; skew-gear for operating said knot-forming mechanism; a cam for operating the knot-tightening mechanism; means for securing said mechanisms to the hand of the operator; and means for manually driving said gear and moving said cam.

42. In a knot-tying implement, in combination, a knot-forming mechanism; mechanism adapted to tighten the knot; skew-gear for operating said knot-forming mechanism; a cam for operating the knot-tightening mechanism; means for securing said mechanisms to the hand of the operator; and means adapted t0 be operated by a movement ofa digit of the hand to. which the implement is secured, for

. moving said skew-gear and said cam.

43. In a knot-tying implement, in combination, a knot-forming mechanism; mechanism adapted to tighten the knot; skew-gear for operating said knot-forming mechanism; a cam for operati-ng the knot-tightening mechanism;

means for securing said mechanisms to the hand of the operator;- and a lever adapted to be operated by the movement of the thumb of the hand to which the implement is secured, for moving said skew-gearand said cam.

44. lIn a knot-tying implement, in combination, a knot-forming mechanism; a thread- 'holding mechanism adapted to clamp the thread and tighten the knot; means for securing said mechanisms to the hand of the operator; and means adapted to be operated by 4a digit of the hand to which the implement is secured, for operating the knot-forming mechanism to form a knot, and for moving said thread-holding mechanism relatively to the knot-forming mechanism/to draw up the slack in the thread to tighten the knot.

45. In a knot-tying implement, in combination, a knot-forming mechanism; a thread- `holding arm adapted to clamp the thread and `m'ove away from the knot-formingmechanism to draw up the slack in the thread to tighten the knot; means for securing said mechanisms to the hand ofthe operator; and means adapted to be operated by a digit of the hand to which the implement is secured, for operating the knot-forming mechanism to form a knot, and for operating said thread-holding arm.

46. In a knot-tying implement, in combination, a knot-forming mechanism; an oscillamechanism adapted to clamp the thread, to Vstrip the thread from the tying-bill and to draw up the slack therein to tighten the knot; means for securing said mechanism to the hand ofthe operator; and means adapted to be operated by a digit of the hand to which the implement is secured, for rotating said vtying-bill and for operating said thread-holding mechanism.

48. In a knot-tyingimplement, in combination,a rotatable tying-bill intermeshing gear for `rot-ating said tying-bill; an oscillatory -th-read holding arm adapted `to clamp the thread and move away from the tying-bill to strip the thread from the tying-bill and draw up the slack in the thread to tighten the knot;

means for securing said meehan-ismsto the hand of the operator; and means adapted to be operated by a digit of the hand to which the implement is secu red,for driving said gear and for moving said arm.

49. In a knot-tying implement, in combination, a knot-forming mechanism; means for operating said mechanism to'fo-rm a knot; an oscillatory shaft; a thread -holding arm loosely mounted thereon, but capable of being held with relation thereto; means for clamping the thread to said yarm; means'for releasably holding said arm with relation to said shaft, so it willl rotate therewith; and m'eans for oscillating said shaft and moving Said arm away from the knot-formingmechanism to tighten the knot. l

50. In a knot-tying implement, incombination, a knot-forming mechanism; means-for operating said mechanism to form a knot; an oscillatory shaft; a thread-holdingarm loosely mounted on said shaft but capable of being locked with relation thereto; means for clam ping the thread to said arm; means for oscillating said arm; and a latch for locking said arm with relation to said shaft.

51. In a knot-tying-implement, in combination, a tying-bill; means for rotating said tying-bill; an oscillatory shaft; athread-holding arm loosely mounted on said shaft, but capable of being held with relation thereto,

`which arm is adapted to clamp the thread and move away from the tying-bill to draw up the ing said bill; an oscillatory shaft; a threadholding arm loosely mounted on said shaft, but capable of being locked with relation thereto; a clamp for holding the thread to said arm; means for oscillating said shaft; means for releasably locking said arm 'with relation to said shaft; and -means for operating said thread-clamp.

53. In a knot-tying implement, in combination, a rotatable tying-bill; means for rotating said bill; an oscillatory'shaft; a threadholding arm loosely mounted on said shaft, but capable of being locked with relation thereto; means for clamping the thread to said arm; and means for releasably locking said arm with relation to said shaft, and for releasingsaid arm from movement with said shaft. g

54. In a knot-tying implement, in combination, a rotatable tying-bill; means for rotating said bill; an oscillatory shaft; a threadholding arm loosely mounted on said shaft, but capable of being locked with relation thereto; an arm rigidly fixed to said oscillatory shaft; means for releasably locking said'thread-holding arm in engagement with IIO said last-mentioned arm; means for clamping the thread to said thread-holding arm; and

tion, a tying-bill; means for rotating said tying-bill; an oscillatory shaft; a thread-holding arm loosely7 mounted on said shaft; an arm fixed on said oscillatory shaft; a springlatch for connecting said thread-holding arm to said last-mentioned arm; means for disengaging said spring-latch; a clamp for the thread, on said thread-holding arm; a cam for oscillating` said shaft; and an arm fixed on said shaft, for engaging said cam.

57. In-a knot-tyingimplement, in combination, a tying-bill; a shearing and clamping jaw for said bill; a cam for operating said jaw; a gear for rotating said bill; an oscillatory shaft; a cam for moving said shaft; a thread-holding arm loosely mounted on said oscillatory shaft; an arm fixed on said oscillatory shaft; a spring-latch for engaging said thread-holding arm With said last-mentioned arm and a clamp for the thread, on the threadholding arm.

58. In a knot-tyingimplement, in combination, a tying-bill; intermeshing gear for rotating said tying-bill; an oscillatory shaft; a

(thread-holding arm loosely mounted on said shaft; an arm fixed on said oscillatory shaft; a spring-latch for connecting said threadholding arm to said last-mentioned arm;

means for releasing said latch; clamping-fingers for the thread, having a sliding engagement with the thread-holding arm, and a pivotal engagement with the before-mentioned `arm fixed on said oscillatory shaft; acam for `stop projection for disengaging said latch: a

spring extending between the thread-holding arm and the said arm fixed on the oscillatory shaft; clam ping-fingers for the thread, having a sliding engagement with said threadholding arm, and a pivotal engagement with the arm fixed on said oscillatory shaft; a cam `for oscillating said shaft; an arm fixed on said-shaft, for engaging said cam; means for attaching mechanism to thehand of the operator; and a pivotal thu nib-lever for operating said mechanism.

60. In aknot-tyingimplement, in combination, a knot-forming mechanism; a threadholding mechanism adapted to clamp the thread to tighten the knot; means for securing said mechanisms to the hand of the operator; and means for manually operating the knot-forming` mecha nism and the thread-holding mechanism.

6l. In a knot-tyingimplement, in combination, a knot-forming mechanism; a threadholding mechanism adapted to clamp the thread to tighten the knot; means for securing` said mechanisms to the hand of the `operator; and means for digitally operating the p k not-forming m echanism and the th read-h 01d ing mechanism.

62. In a knot-tying implement, in combination, a knot-forming mechanism; a threadholding mechanism adapted to clamp the thread to tighten the knot; means for seen ring said mechanisms to the hand of the operator; and a lever adapted to be manually operated, for operating the knot-forming mechanism and the thread-holding mechanism.

63. In a knot-tyingimplement, in combination, a knot-forming mechanism; a threadholding mechanism adapted to clamp the thread to tighten the knot; means for securing said mechanisms to the hand ot' the operator; and a lever adapted to be digitally operated, for operating the knot-forming mechanism and the thread-holding mechanism.

64. In a knot-tyingimplement, in combination, a knot-forming mechanism; a threadholding mechanism adapted to clamp the thread to tighten the knot; means forsecuring said mechanisms to the hand of the operator; and means adapted to be operated by a movement of a digit of the hand to which the implement is secured, for operating the knot.- forming mechanism and the thread-holding mechanism.

65. In a knot-tying implement, in combination, a knot-forming mechanism; a threadholding mechanism adapted to clamp the thread to tighten the knot; means for securing said mechanisms to the hand of the operator; and means adapted to be operated by a movement of the thumb of the hand to which the implement is secured, for operatingy the knot-forming mechanism and the thread-holding mechanism.

66. In aknot-tyingimplement, in combination, a knot-forming mechanism; a threadholding mechanism adapted to clamp the thread and tighten the knot; means forsecuring said mechanisms to the hand of the operator; and means adapted to be operated by a digit of the hand to which the implement is secured, for operating the knot-forming mechanism to form the knot, and the thread-holding mechanism to hold the thread and draw up the slack therein to tighten the knot.

67. In a knot-tying implement, in com-bina- IOO IIO

8 i lcrasse tion, a knot-forming mechanism; a threadholding mechanism adapted to clamp the thread to tighten the knot; means for secu ring said mechanisms to the hand of the operator; and a lever adapted to be operated by a digit of the hand to which the implement is secured for operating the knot-forming mechanism and the thread-holding mechanism.

68. In aknot-tying implement, in combination, a knot-forming mechanism; a threadholding mechanism adapted to clamp the thread to tighten the knot; means for securing said mechanisms to the hand of the operator; and a lever adapted to be operated by the thumb of the hand to which the implement is secured, for operating the knot-forming mechanism and the thread-holding mechanism.

69. In a knot-tying implement, in combination, a knot-forming mechanism; a threadholding mechanism adapted to clamp the thread to tighten the knot; means for securing said mechanisms to the hand of the operator; and a pivoted arm adapted to be operated by a movement of the hand to which the implement is secured, for operating the knotforming mechanism and the thread-holdingv mechanism.

70. In aknot-tying implement, in combination, a knot-forming mechanism; a threadholding mechanism adapted to clamp the thread and tighten the knot; means for secu ring said mechanisms to the hand of the operator; and means for manually operating the knot-forming mechanism, and for moving the' thread-holding mechanism relatively to the knot-forming mechanism.

7l. In aknot-tying implement, in combination, a knot-forming mechanism; a threadholdingl mechanism adapted to clamp the 1 thread and tighten the knot; means for securing said mechanisms to the hand of the operator; and means for Adigitally operating the knot-forming mechanism, and for moving the thread-holding mechanism relatively to the knot-forming mechanism.

72. In a knot-tying implement, in combination, a knot-forming mechanism; means for manually operating'said knot-forming mechanism to form a knot; a thread-holding armL adapted to clamp the thread and move away 74. Inaknot-tying implement, in combination, a 'knot-forming mechanism; a threadholding mechanism adapted to clamp the thread and tighten the knot; means for securing said mechanisms to the hand of the operator; and an arm for manually operating the knotforming mechanism and the threadholding mechanism.

75. In aknot-tying implement, in combination, a knot-forming mechanism; means for manually operating said mechanism to form a knot; an oscillatory shaft; a thread-holding arm loosely mounted thereon; means for clamping the thread to said arm; means manually operated for oscillating said shaft and moving said arm away from the knot-forming mechanism to tighten the knot; and means for securing the knot-forming mechanism to the hand of the operator.

76. In a knot-tying implement, in combination, a knot-forming mechanism; means for digitally operatingsaid mechanism to form` a knot; an oscillatory shaft; a thread-holding arm loosely mounted thereon; means for clamping the thread to said arm; means digitally operated for oscillating said shaft and moving said arm away from the knot-forining mechanism to tighten the knot; and means for securing the-knot-forming mechanism to the hand of the operator.

77. In a knot-tying implement, in combination, a knot-forming mechanism; a lever adapted to be manually operated for operating said mechanism to form a knot; an oscillatory shaft; a thread-holding mechanism loosely mounted thereon; means for clamping the thread to Vsaid arm; means manually operated for oscillating said shaft and moving said arm away from the knot-forming mechanism to tighten the knot; and means for securing the knot-forming mechanism to the hand of the operator.

78. In a knot-tying implement, in combination, a rotatable tying-bill; a thread-holding mechanism adapted to strip the thread from the tying-bill and tighten the knot; means for securing said mechanisms to the hand of the operator; and a lever adapted to be operated by a movement of the hand to Which the implement is secured, for operating said threadholding mechanism.

79. In a knot-tying implement, in combination, a rotatable tying-bill; a thread-holding mechanism adapteditostrip the thread from the tying-bill and tighten the knot; skewgear for rotating said tying-bill; means for operating the knot-tightening mechanism; means for securing the implement to the hand of the operator; and a lever adapted to be operated by a movement'of the hand to Which the .implement is secured, for driving the skew-gear and the means for operating the knot-tightening mechanism.

80. In a knot-tying implement, in combination, a rotatable tying-bill; intermeshing skew-gear for rotating said tying-bill; means IOO for securing the implement to the hand of the operator; and a pivoted arm adapted to erator; and a thumb-lever adapted to be be operated by a movement of the hand to moved by the thumbof the operator, for driv- 1o which the implement is secured, for driving ing said skew-gear.

said skew-gear.

81. In aknot-tyingimplement, in combina- HOWARD D' COLMAN tion, a Jying-bi 1l; in bermeshing skew-gear fol` Witnesses: rotating said tying-bill; a hand-loop for se- FRANK A. TICKNOR, curing the implement to the hand of the op- RICHARD F. LOCKE.

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