US1363377A

US1363377A - Tube-threading machine

Info

Publication number: US1363377A
Application number: US803112A
Authority: US
Inventors: Tymeson Eugene
Original assignee: Alexander Smith & Sons Carpet
Current assignee: Alexander Smith & Sons Carpet; Alexander Smith & Sons Carpet Co
Priority date: 1913-11-26
Filing date: 1913-11-26
Publication date: 1920-12-28
Anticipated expiration: 1937-12-28

Description

E. TYMESON.

TUBE THBEADING MACHINE.

APPLICATION FILED NOV.26. 191s.

Patented Dec. 28, 1920.

6 SHEETSSHEEI I.

E, TYMESON. TUBE THREADING MACHINE. APPLICATION FILED NOV. 26,1913- Patented Dec. 28, 1920.

E. TYMESUN.

TUBE THREADING MACHINE. APPLICATION man NOV. 26, l9l3.

Patented Dec. 28,1920.

a SHEETSQSHEEI a.

E. TYMESON.

TUBE THREADING MACHINE.

APPLICATION FILED NOV. 26, 1913.

6 SHEETS-SHEEI 4.

E; TYMESON.

TUBE THREADING MACHINE.

APPLICATION FILED NOV. 26, 1913.

Patented Dec. 28, 1920.

GSHEETS-SHEEI e.

UNITE STA'ILQS OFFICE.

EUGENE TY IVIESON, 0F YONKERS, NEW YORK, ASSIGNOR TO ALEXANDER SMITH 82;

V SONS CAR-PET COMPANY, A. CORPORATION OF NEN YORK.

TUBE-TI-IBEADING MACHINE.

Application filed November 26, 1913.

To aZZ whom it may concern:

Be it known that I, EUGENE TYMnsoN, a citizen of the United States, residing at Yonkers, county of WVestchester. and State of New York, have invented certain new and useful Improvements in Tube-Threading of loom tube frame such as used in looms for weaving Axminster or similar carpets or rugs, the especial object of the invention bemg to provide an. eflicient machine for this purpose, in which the tuft yarns shall be threaded by being pushed through from the spool or larger ends of the tubes, instead of by passing hooks through the outer or smaller ends of the tubes and drawing the tuft yarns through the tubes on the return of the hooks.

The broader features of the invention relate to the general organization of the machine for threading the tuft yarns by pushing them through the tubes, including the means for engaging the tuft yarns at the spool ends of the tubes and pushing them through the tubes, with the tube frame properly supported and the tuft yarns positioned for the engagement of the threading means.

The invention includes also means for combing or bushing out the yarn ends they are threaded through the tubes and before trimming, means for letting-off the yarn on the spool side of the threading means to provide the length required for threading through the tubes, an improved comb for holding the yarn ends separated on the spool and during threading, and various features of construction and combinations of parts, preferably applied in machines ernbodying the general features of the invention, but which may be used also in machines employing other methods of threading the tuft yarns through the tubes;

In the accompanying drawings forming a part of this specification, there is shown a tube threading machine of the preferred Specification of Letters Patent.

Patented Dec. 23, 1920.

Serial No. 803,112.

form embodying all the features of the invention, and a modified form of let-off device, and this construction will now be described in detail, and the features forming the invention then specifically pointed out in the claims.

In the drawings: Figure 1 1s a side elevation of the ma,-

chine, with the frame broken away to show the clamp release rod;

F 2 is a front elevation of the machine, with the yarn ends broken away to show the parts;

Fig. 3 is a vertical section inside the frame and looking to the left in Fig. 2;

Fig. 4 is a horizontal section on the line 4& of Fig. 2;

Fig. 5 is adetail sectional elevation of a portion of the clutch trip;

Fig. 6 is a horizontal section on the line 6-6 of Fig. 5;

Figs. 7, 8, 9 and 10 are detail vertical sections showing successive positions of the parts in threading the tubes;

Figs. 11 to 14: are views illustrating the sidewise movement of the needles for engaging the yarns in threading, Figs. 11 and 12 being front elevations showing successive positions of the needl s, and Figs. and 1.4L plan views with the needles in. section and corresponding, respectively, to Figs. 11 and 12 in positions of parts;

Fig. '15 is a vertical section looking in the same direction as Fig. 3, and showing a different form of let-off device Fig. 16 isa plan view of Fig. 15; and

Fig. 17 is a detail section on the line 1717 of Fig. 15;

Referring now especially to the construc tion shown in Figs. lto i i, A is the frame of the machine, shown as an open frame formed of vertical end standards and horizontal. tie-bars, and B the needle frame mounted to slide vertically in frame A. This needle frame B consists ofvertical end bars 11 sliding inguides l0 on'the front the lower side of bar 12, and spring pressed to the left in Fig. 2 by spring 1 1 connected to

bars

12, 13. -The needle frame 13 is moved vertically by levers'16 mounted in the rear standards A and connected to the needle frame bylinks 17, these levers 16 being re ciprocated 've'rtically'through links 18 and thread the tubes and-return the needles, and

the-needle bar- 13 and needles a move sidewise in the frame B to engage theyarns on the downward movement of the needles. The "sidewiseamovement of the needle bar 13 and. needles :isrcontrolled' and their proper position assured byadjustable stops 29 at oppositeisides of theframe. The needles a .zpreferably are guided throughout their movem'ent by a yielding needle guide 6, spring pressed downward by spring 30, and carried by rods:31;passingfreely through bars 12,. 13, and free to move sidewise with needle bar 13 and needles a -in-slots 32 in barr12,the-downward movement of guide I) being limited by Steps 33. The needles a in thejpreferredzform.shown, are thin plates arranged flatwise to each other across the .mach'ine,and 'passing through guide open- "ings'or -slots. in guidebar. 6, these needles, as

shown clearly .-.-in: Figs. 3. and 7 to 10, being formed with .a' :head'slotted vertically to form a forlrwith long: and short prongs 1, 2, so that the needle "prongsal ,may pass between .the-ya-rns andigtheniby relative-sidewise movement of the needles and yarns, the

yarns be engaged between the prongs 1, 2, as 46;

the needles continue their downwardmovement. I t I 1 .Belowtheneedles' ais the support for the tube/ frame 0, shown as of the: common. form havlng the usual tubes (5; the support con sisting of a bar Mon which thewtube' iframe c sits, withathetubeslying on the front of the bar, and a rocking clamp bar 35 in front of the tubes whichis pivoted to rock rearward against the front sides of-thetubes to away from the tubes for-insertion and reclamp them in place and rock forward i f moval of the tubeframe, this tube clamp 35 being shown as operated by handle 36. Piv-' f OtGd onthe top of. tube clamp '35 is a plate.

formingn yarnclamp 37 which is pressed rearward by springs :38 "to clamp the yarns and. pressed forward against. the springsv out .ofsclamping positionand-out ofQthe path of I therneedles a h 1... rod 39.nsliding. in aaguide able I manner.

on bar 34 and operated by cam arm 40 onrock shaft 41 and cam 42. The tube clamp 35 carries also the comb e by which the free ends of the yarn are held separatedand in proper position for threading, this comb 6 being set into grooves in supports on the top of'the tube clamp, and spring pressed endwise to hold it in position by a' suitable spring pressed slide 3 at one end.

T he means for holding the free'ends of the yarn be varied, but the comb shown is preferably used and embodies certain novel features which form a part of the present invention. The comb has inclined yarnholding slots .4 and shoulders '5 forming hooks overhanging the inclined slots so that the yarn ends maynot be drawn from the comb directly upward in the slot direction, but must be movedsidewise to release them from the hooks 5, the upper surface of the teeth being preferably inclined, as shown, so as to guide theyarnends into the slots 1 in threading thecomb. The comb is preferably formed of a piece of sheet metal bent into a loop to form the base of the teeth, but this base may be formed in any other suitthis comb is laced noon the arns in beaming by passing the comb over theyarns or moving the yarns sldewise lnto the comb,

and then the comb is tiedto the spool and acts to hold the yarn ends-separate and in properposition before and during threadmg. V r

The yarn spools f, carrying the yarns 00 may be and are shown as of the common construction. In the tube threader, these spools are carried by clamping heads 4%, one-of which is spring pressed so as to; yield .for the. insertion and withdrawal of the spool, and'these clamping .headsetare carried by studs 45, free to be rotated with the spool by finger piece 46 on one of the studs, the .spoolbeing heldragainst unwinding rotation by ratchet 17 on one of the clamping heads and pivoted pawltS, which may be released by hand. The clamping heads 4 1 in the. constructionnow bein described, are

.mounted in arms 4E9 on rock shaft 50 so as to swingtoward; and. from the path of the needles a, this rock shaft-50 being actuated by arin 51 connectedb ylink 52to cam lever 53 operatedby cam 54c'against lever return spring 55,. to movethe spool forward from the position. shown in full lines'inFig. 3 to that'shown in dottedlines, the. spool preferably being returnedby handat the proper time and .held. in normal. position. by spring catch. 56. taking over.pin 57: on one ofthe arms 49, this catch 56' yielding against the operating pressure whenithe arms are swung .jforward by. cam 54.

Below the. tube support and tubes are m ounted. .the. cutting Mdevices. for..;trimming It will. be understood that 011' the yarn ends after threading through the tubes, and combing or brushing devices for straightening out the yarn ends, these combing or brushing devices preferably acting also to hold the yarn ends during the withdrawal of the needles a and thus avoid all danger of the yarn ends being withdrawn with the needles.

Two knives h, z are shown for trimming ofi the yarn ends, knife it being carried by lever knife bar 58 mounted in arms 59 on rock shaft 60 actuated by arm 61 connected by link 62 to cam lever 63 operated by cam 64 against lever returning spring 65. The other knife, 2', is shown as carried by knife head 66 sliding in guides on the frame and connected by link 67 to cam lever 68 operated against returning springs 69 by cams 70. The rock shaft 60, carrying knife head 58, is preferably carried on adjustable slide bars 71 on frame bars A, and the guides for knife z made adjustable, so that the proper position and action of the knives may be secured.

The devices for combing or brushing out the yarn ends and holding them during the withdrawal of the needles, are preferably in the form of brushes, and in the construction shown, brushes 7c are arranged on opposite sides of the needle path and carried by brush heads 7 2 in arms 73 swinging on shaft 7 1, and this shaft 74 is mounted to rise and fall so as to move the brushes upward and downward between the ositions shown in full and dotted lines in *ig. 9, thus combing or brushing out the yarn ends. The shaft 74 is carried in arms 75 on rock shaft 7 6, which is rocked by cam arm 77 andcam 78 to raise the shaft 74 and brushes against the tension of spring 79, which spring lowers the shaft on release by the cam. The arms 73, carrying the brushes in, are rocked in opposite directions to move the brushes together and separate them in proper time, as follows: The front brush arms 73 are connected by link 80 to cam lever 81 operated by cam 82 and returned by a spring (not shown). The rear brush arms 73 are operated by similar means, consisting of link 84, earn lever 85, cam 86, and a spring (not shown).

Any suitable driving and controlling devices may be used. As shown, the cam shaft 21 is driven through gear 88, pinion 89 and gear 90 from pinion 91 on driving shaft S, and this driving shaft S is driven by a friction clutch consisting of clutch member 92 onshaft S and driving pulley 93 splined on the shaft. Pulley 93 is thrown in'and out for clutching and releasing shaft S by clutch lever 94:, and a brake 95 is preferably used to stop the machine promptly when shaft S is unclutched from the power, this brake shoe 95 being held against member 92 by adneedle frame.

justable stud 96 on clutch lever 9 1 when the lever is thrown into unclutching position. The clutch lever is moved by hand for operating the machine, and is automatically thrown into position to stop the machine at the end of one rotation of the driving shaft. For this purpose the clutch lever 9% is connected by link 97 to arm 98 on rock shaft 99, spring pressed to unclutch the shaft S by spring 100, and rocked to clutch shaft S to pulley 93 by hand lever 101 on rock shaft 99. Hand lever 101 moves in slotted segment 102, this segment having a shoulder 103 inside which the handle is thrown at the end of the shaft clutching movement, and by which it is held against return until forced off the shoulder by a trip 10 1 carried by trip lever 105 operated in one direction by trip bar 106 and returned by spring 107 and having a locking pin 108 entering an L-shaped slot 109 in trip bar 106. Trip bar 106 is connected at its lower end to lever 110 pivoted in the front standard A with its inner end taking over a pin 6 on one of the-side bars 11 of the needle frame B, so that the lever is rocked vertically by the rising needle frame B and re turned by spring 7 on the descent of the Trip bar 106 is spring pressed to hold pin 108 in the horizontal locking portion of slot 109 by spring 111, and trip bar 106 is moved against the tension of this spring to release pin 108 by cam trip 112 carried by hand lever 101, as the lever returns to normal. position.

The operation of this clutch mechanism follows:

To start the machine for a tube treading operation, the hand lever 101 is swung inward and held by shoulder 103 to clutch shaft S to driving pulley and release brake 95, and the needle frame is then moved downward. As pin 6 releases lever 110 on this needle movement, rod 106 moves up ward and spring 111 moves the upper end of the rod into position with pin 108 in the horizontal part of slot 109, as shown in Fig. 5. When the tubes have been threaded and the needles return to their upper position, shown in Fig. 3, and the machine is to be stopped, the rocking of lever 110 by pin 6 on bar 11 draws down rod 106 and rocks lever 105 and trip 104, so as to throw hand lever 101 off shoulder 1.03, and the lever 101 and shaft 99 are then returned to normal position by spring 100 and through link 9?" and lever 94 unclutch pulley 93 from clutch member 92, and raise brake-shoe 95 into contactwith clutch member 92, so as to unclutch shaft S and brake it so as to assure the prompt stopping of the shaft. As lever 101 moves outward, cam 112 carried thereby. throws link 106 inward so as to move pin 108 into the vertical portion of slot 109,

V of the machine.

:when spring 107 returns lever 105 and, trip 104 to normal position.

A. safety device is preferably provided to prevent the descent of the needle bar B, except at the proper time, and thus avoid all danger of injury to the operator in inserting and removing spools. The safety device shown consists of a stop 113 pivoted at 114 and having anvarm 115 spring pressed by spring 116 to throw the stop into position beneath bar 12 and rocked to withdraw stop 113 by slotted bar 117 having a slot receiving a pin on arm 115, the slot being formed with a shoulder normally engaging the pin so as to rock shaft 114 and withdraw stop 113 when lever 101 is thrown inward to clutch the driving shaft S for an operation The bar 117 has a rounded upper end in'the line of trip pin 118 on bar 12, so that bar 117 :is. rocked by this pin 118 when bar 12 passes it, to release the pin on arm 115 from the shoulder on bar 117 and thus permit spring 116 to throw stop 113 inward, thus assuring stop 113 being in position to stop. bar12 and prevent another movement of the needle frame, even though lever 101 should not be tripped to unclutch shaft 5. Stop 113 yields against spring 116'to permit bar 12' to pass on; its upward movement.

The general operation ofthe machine is as follows: r

The machine is shown in the main views, Figs. 1 to 4,'with the parts in the position they occupy when the machine is ready for starting the tube threading operation, the tube frame 0 and its tubes (2 and yarn spool 7 being in position: for threading, with the yarn ends a; lying over the tops of the tubes and held separated by comb e.

Shafts is now clutched to pulley 93, as above described, and needle frame 13 with needle bar 13 and needles a is then moved downwardby closed cams 20, acting through levers-19, links 18 and levers 16, until the long prongs 1 of theneedle forks are passed between the yarn ends m, the needles during this movement being out of line sidewise with their respective tubes (has shown in Figs. 2 and 11. Needle bar 13 with its needles (1 then stops its downward. movement and is moved sidewise by cam 28 acting through cam lever 27, rock-shaft 26,

lever 25, link 24, and side bar 22, and the position 'to register 1 with theirrespective tubes '(Z below them. The relative positions of the parts before andafterrsidewise move- "ment of theneedles is shown clearly in Figs.

1, 7, and 11 to 14, Figs. 1, 7, 11 and 13 showing the position of parts before this sidewise movement, and Figs. 12 and 14 after this sidewise movement. 1

The downward movement of the needles is now resumed with the short prongs 2 passing in front of the bent. yarns,-soas to engage the latter in the forks and move the yarns through the tubes, withdrawing the yarn ends from the comb e. For this movement of the needles into the tubes, the yarn clamp 37 has been thrown forward from the position shown in Figs. ,1- to 4 into that shown in Figs. 7 to 10, by rod 39 actuated by lever .40. and cam 42, so as to leave the tubes uncovered for threading. As the needles move downward with the yarns w, also,

- the arms 49 are swung forward to move the spool f from the position shown in full lines inFig. 3 to that shown in dotted lines, thus giving suflicient slack for threading without tension. on the yarns other 1 than that of drawing the yarn ends from the comb e. Spool f and arms 49, are thus moved by rock shaft 50, arm 51, link 52, lever 53 and spring 55 with the movement controlled by cam 54 against which the lever bears during this movement, the spring catch 56 yielding to permit this movement. The needle guide 6 moves downward with the needles to guide stops 33 and then spring 30 yields to allow the needles to pass onward through the stationary guide. F 8 shows the position of parts with the threading movement of the needles a completed. 7

The brusheslc are now raised by arm 75, rock shaft 76, arm77, and cam 78 against spring 79' from the position shown in Fig. 3 until they lieon opposite sides of the yarn endS and then the brushes are closed together upon the yarn ends and needles by rocking arm 73 on shaft 74 by their respec tive links 80, 84, levers 81, 85, and

cams

82, 86, so as to hold the brushes in the position shown in full lines in Fig. 9, and the brushes are then moved downward by spring 79 into the position shown in dotted lines in Fig. 9, thus combing or brushing out the yarn ends, and thebrushes are then separated again to the position shown in Fig. 3 by rocking arms 7 3. The needles 0, preferably are moved upward out of the tubes while the brushes 7c are holding the yarns, as shown in Fig.9, so that these brushes aid in preventing any tendency to'the withdrawal of any of theyarnends withthe needles a.

The yarn ends having thus been combed or brushed out and the needles withdrawn from the tubes,- the yarn ends are trimmed off to an even length this being done by moving the-knives h, 93 together by rocking knife arms 59 and moving knifeslide 66 by their respectlvezcams and connections, previously described, so that the yarn ends are trimmed, as shown in Fig. 10, and the knives then immediately restored to their normal position, as shown in Fig. 3.

lVhen the needles have been withdrawn from the tubes d, the clamp 37, which during the threading operation has been held in the position shown in Figs. 7 to 10, by rod 39 forced forward by cam 42 acting through cam lever 10, is released by cam 12 and clamp 37 is then closed by springs 38 upon the yarn ends lying over the bar of spool frame 0, as shown in dotted lines in Figs. 1 and 10, and in full lines in Figs. 2 to 4, so as to clamp the yarn ends upon the frame bar and hold them in position relatively to the tubes. Spool 7 is then rotated by hand so as to wind up the slack of the yarn between clamp 37 and the spool, and bar 35 with clamp 37 is then rocked forward by handle 36 so as to release the tube frame and yarn ends, and the spool frame and spool 7 are then removed from the machine and clamped together as usual to hold the tube frame on the spool until required for use in the loom.

A new spool f with its attached comb e is now inserted between the heads 1% and another tube frame 0 is placed in position on the support 34:, and the tube clamp 35 and yarn clamp 37 are swung back into tube clamping position, and the comb e and yarn ends are put in place on clamp 35. As the spool is inserted between the heads 4 1, the arms 49 with the spool supports and spool are swung backward by hand from the position shown in dotted lines in Fig. 3 to the position shown in full lines in that figure, the pawl 48 being raised by hand durmg this operation to permit the spool to turn for letting ofi yarn, and when the spool frame has reached its rearward position the pin 57 is engaged by spring catch 56 t0 held the spool frame and spool in the position shown in full lines in Fig. 3 until the next threading operation of the machine, as previously described. When the spool has been swung back and the comb e put in place and as the slack is taken up, the pawl 13 1s dropped to hold the spool against rotation. All the parts are now in the position shown in Fig. 3, and ready for another threading operation.

The construction andoperation of the machine as shown in Figs. 15 to 17 is the same as that above described, except that these figures show a modified let-oft device for avoiding tension on the yarns during threading. In this construction 125 is a bar extending across the machine above the yarns and carried by arms 1.26 on rock shaft 127, controlled through arm 128 by cam 129 and by crank arm 130, link 131, treadle 132, and spring 133. Bar 125 is held in its lowered position, shown in dotted lines in Fig. 15, by locking pin 134: entering a hole 135 in a lug on one of the arms 126, this pin being mounted to slide and moved in opposite directions by rocking lever 136 spring pressed by spring 137, and rocked against the spring to release the pin 134 by trip arm 138 on one of the needle bar arms 16.

The operation of this let-01f is as follows:

When the spool f with its comb e has been placed in position for threading, the spool supports being fixed in this construction, bar 125 is lowered by treadle 132 acting through link 131, arm 130, shaft 127 and arms 126, from the full line to the dotted line position shown in Fig. 15, and the bar is held in its lowest position by catch 1341 enteringhole 135. For this operation, the yarn ends a1 have been left slack so that no tension is put upon the yarn ends by the deseen ding bar. The spool f is then rotated so as to draw up the yarn ends into the position shown in Fig. 15, and the spool is then held by pawl 48. lVhen the needle frame and its operating arms 16 descend for threading, trip arm 138 on one of the arms 16 engages lever 136, as shown in dotted lines in Fig. 17, and rocks it against spring 137 to withdraw pin 134% from hole 135 and release arm 126 and bar 125, and spring 133 then returns the bar 125 from the dotted line to ment of the bar as required by the thread inn movement bein secured b cam 129 acting on cam arm 128, this operation, also, restoring treadle 132 to normal position. The tube threading operation is then the same as above described, the slack on the yarn ends so for threading being provided by the release of the yarn loop by bar 125 instead of by swinging the spool 7 forward, as shown in Fig. 3.

It will be understood that many Inodifica.- tions may be made in the form, arrangement and movement of parts shown while retaining the invention defined by the claims, and that the machine illustrated is only a preferred embodiment of the invention. The needles for pushing the yarns through the tubes may be used, also, with other means for engaging the needles with the yarns. Thus, the relative sidewise movement of the yarn and needles for bending the yarn about the long prongs of the needles, may be secured by moving the comb as in present machines. The needles, also, may be moved sidewise, as shown, without moving the tubes, or the tube frame may move sidewise with the needles, in which case the long prongs of the needles may enter the tubes before the sidewise movement. The yarn may be let 05 during threading by rotating the spool or releasing it so as to permit the threading movement of the needles to draw OH? the yarn, or the required length of yarn may be provided by using longer ends on the comb side of the tubes, but the constructions shown are preferred as shortening the comb ends and avoiding the pull necessary for rotating the spool to draw oil the yarn.

What is claimed is 1. In a tube threading machine, a tube frame support andrmeans for holding the combination with needles arranged at the spool or large ends of the tubes and acting simultaneously to thread the yarns through the tubes from their spool or large ends simultaneously.

3. In a tube threading machine, a tube frame support and means for holding the yarn ends in position to be threaded, in combination with needles moving simultaneously transversely to the yarns and engaging the yarns to loop them over the ends of the needles and then push them through the tubes simultaneously.

45111 a tube threading machine, a tube frame support and means for holding the yarn ends in position to be threaded, in combination withneedles moving simultaneously transversely to the yarns to loop them over the ends of the needles and then push them through the tubes simultaneously, and means for producing relative bodily sidewisemovement of the yarns and needles for engaging the yarns with the needles.

5. In a tube threading'machine, a tube frame support and means'for holding the yarn ends in position to be threaded, in combination with needles moving transversely to the yarns to loop them over the ends of the needles and then push them through the tubes, and means for moving the needles sidewise with the yarns for engaging the yarns with the needles.

6. In a tube threading machine,ia tube frame support and means for holding the yarn ends in position to be threaded, in com bination with needles at having forked heads with long and short prongs movingsimultaneously transversely to the yarns to loop them over the ends of the needles and then push themthrough the tubes simultaneously, and means for producing relative bodily sidewise movement of the yarns and needles after the long'prongs have passed between the yarns-forrengaging the'yarns with the needles.

7. In a tube threading machine, a tube frame supportand means for holding the yarn ends in position to be threaded, in combination' with means for pushing the yarns through the tubes simultaneously, and means moving longitudinallyof the yarn for comb ing or brushing out the ends of the yarn after threading and acting to hold the yarn ends during the withdrawal of the threading means from the tubes.

8. In a tube threading machine, a tube frame support and means .forholdingrthe yarn ends in position to be threaded, in com bination with means for pushing the yarns through the tubes, brushes arranged on opposite sides of the threaded yarn ends, and means for moving said brushes together upon the yarn ends and then longitudinally of the yarn for brushing out the ends of the yarn after threading.

9. In a tube threading machine, a tube frame support and means for holding the yarn ends inposition to be threaded, in combination with means for pushing the yarns through the tubes, brushes arranged on opposite sides of the threaded yarn ends, and meansfor moving said brushes together upon the yarn ends before withdrawal of the threading means, whereby the yarn ends are held from withdrawal with the threading means.

10. In a tube threading machine, a tube frame support and means for holding the yarn ends in position to be threaded, incombination with needles moving simultaneously transversely to the yarns and engaging the yarns to loop them over the ends of the needles and then push them through the tubes simultaneously, and means movingrlongitudinally of the yarn ends for combing or brushing out the yarn after threading and acting to hold the yarn ends during the withdrawal of the needles from the tubes.

ll. In a tube threadingmachine, a tube frame support and means for holding the yarn ends in position to bethreaded, in comhi'nation with needles arranged at the spool or large ends of the tubes and acting to thread the yarn through the tubes from the spool or large ends, brushes arranged on opposite sides of the yarn ends at the smaller ends of the tubes, and means for-moving said brushes together upon the yarn ends before withdrawal of thethreadingmeans bination with means for pushing the yarns through the tubes, means for combing or brushing out the ends ofthe yarn after threading, and means fortrimming oft the yarn ends after they'are combed or brushed out.

13; In a tube threading machine, a tube frame supportand means for holding the yarn ends in position to be threaded, in

combination with means for pushing the yarns through the tubes, brushes arranged on opposite sides of the threaded yarn ends, means for moving said brushes together upon the yarn ends and then moving them longitudinally of the yarn to comb or brush out the ends of the yarn, and trimming devices acting on the yarn ends between the brushes and the tubes after the brushes are moved longitudinally and separated.

i l. in a tube threading machine, a tube frame support and means for holding the yarn ends in position to be threaded, in com bination with tube threading means, and means moving longitudinally of the tubes for combing or brushing out the ends of the yarn after threading.

In a tube threading machine, a tube frame support and means for holding the yarn ends in position to be threaded, in combination With tube threading means, and means moving longitudinall of and parallel with the tubes for combing or brushing out the ends of the yarn after threading and acting to hold the yarn ends during the withdrawal of the threading means from the tubes.

l6. in a tube threading machine, a tube frame support and means for holding the yarn ends in position to be threaded, in combination with tube threading means, brushes arranged on opposite sides of the threaded yarn ends, and means for moving aid brushes together upon the yarn ends and then longitudinally of the yarn for brushing out the ends of the yarn after thread ing.

17. In a tube threading marhiue. a tube frame support and means for holding the yarn ends in position to be threaded, in rombiuation with tube threading means. means for combing or brushing out the ends of the yarn after threat and means for trim ining off the yarn ends after they are combed or brushed out.

18. In a tube threading machine, a series of needles 0 having forked heads formed. with long and short prongs 1, 2, in 00minnation with means for advancing the me dles in a straight line to move the long prongs between the yarns and means for then producing relative bodily sidewise movement of the needles and yarn to bend the yarn around the long prongs and engage the yarn in the needle forks on the further movement of the needles in the same direction as said straight line movement.

19. In a tube threading machine, a series of needles at having forked heads formed with long and short prongs 1, 2, in combination with means for advancing the me dles to move the long prongs between the yarns. and means for then moving the needles sidewise to bend the yarn around the long prongs and engage the yarn in the needle forks on the further movement of the needles.

20. In a tube threading machine, the combination with spool supporting and tube threading means, of a comb for holding the yarn ends separated for the action of the threading mechanism, having its yarn slots inclined and the comb teeth formed with shoulders overhanging the inclined slots,

In a tube threading machine, the combination with spool supporting and tube threading means, of a comb for holding the yarn ends separated for the action of the threading mechanism, having its yarn slots inclined and its comb teeth formed with shoulders overhanging the inclined slots, and the tops of the teeth inclined to guide the yarns beneath the shoulders into the inclined slots.

22. A comb for holding the free ends of tuft yarns in carpet manufacture, consisting of a bar adapted to be detachably secured to the spool, and having teeth constructed to form inclined yarn slots 4 and shoulders 5 overhanging the outer ends of the slots.

23. A comb for holding the free ends of tuft yarns in carpet manufacture, consisting of a bar adapted to be detachably secured to the spool, and having teeth constructed to form inclined yarn slots 4 and shoulders 5 overhanding the outer ends of the slots, the outer ends of the teeth being inclined to form tapering guides directing the yarn into the slots in placing the comb on the yarn.

In a tube threading machine, in combination with a spool support and tube threading mechanism, means for moving the spool support toward the tubes during threading to provide slack for passing the yarn ends through the tubes.

ln a tube threading machine, in combination with a spool support and tube threading mechanism, means for moving the spool support toward the tubes during threading to provide slack for passing the yarn ends through the tubes, and means for returning the spool support to normal position after the completion of the threading operation and stoppage of the machine.

In a tube threading machine, the combination with a tube support and tube threading devices, spring pressed clamp 37 for holding the yarn ends clamped after threading, and means for moving said clamp out of the path of the tube threading devices for threading and releasing it for clamping the yarns.

27. 1' n a tube threading machine, thecoinbination with tube threading devices and operating mechanism therefor, of manually controlled means for startim said mechanism, and a stop in the path of the tube threading device removed by the" manual operation of' thejstarting means. i

In a tube threading machine, the combination withtube threading devices and operating mechanism therefor, of manually controlled means for starting said mecha nism, means for stopping the machine at the end of each threading operation, a stop in the'path of the-tube threading devices re moved by the manual operation of the starting means, andmeans for returning said stop intothe-pathof the threading devices independentlyof the stoppage of the ma-' chine,.whereby the operation of the tube threading. devices is prevented independently ofthe machine operation.

:29. In a machine ofthe kind described, means for holdingia loom tube frame in position to be threaded, and threading mechanism, including devices arranged to double the yarns back-on themselves over the ends of'the same, and means for then moving said devices and yarns simultaneously through all the tubes from the rear or spool end. of the tubes.

30. In a machine of the kind described,

means for holding a loom tube frame in ver-' tical: position to be threaded, means for pushing the yarns donward through the tubes of said .frame from the rear or spool ends of'the tubes toward the opposite ends of the tubes, and means for ei'igaging the yarnends beyond said opposite tube ends and stripping them into holding position by movement parallel with the yarn while the pushers are retracted.

31. In a machine of the kind described, yarn drawing mechanism arranged to push a complement of yarns simultaneously through the tubes of each tube frame from the rear or spool end of the tube toward the opposite end as successive tube frames are put in position, including means for each tube carrying at its forward end the yarn as said end moves forward to enter the tube at said rear or spool end of the tube, and means to comb and clamp the free ends of the yarns by movement parallel with the yarn while the. pushing mechanism is being withdrawn from the tubes.

32. In a machine of the kind described, means for holding a loom tube frame in position to be threaded, threading mechanism for placing the yarns in the tubes, and brushing means on opposite sides of the yarn moving longitudinally of the tubes for brushing the free ends of said yarns away from the threading mechanism.

33. In a machine for acting upon tuft yarns in carpet manufacture, the combination with means to hold a series of such yarns, meansto support a tube frame in relation'to the yarns to be threaded therethrough, a series of 'pushers with means to cause relative movementbetween the same and thetubes first to ententhe pusher's V through the large ends of the tubes and through the tubes and then to position them without: the same, said push'ers engaging the yarns 'priortoentering the large ends of the tubes, and means to cause relative bodilylateral movement/between the pushers and the yarns to insure better engagement between the same, said yarns being carried intothe large end of the tubes simultaneously on the first of said positioning movements 34.11:! a' maehinefor acting upon tuft yarns in carpet manufacture, the combination with means to hold a series of said yarns, means to support a tube frame in relation to the yarns to be threaded therethrough, a series of pushers, and means to cause relative lateral bodily movement between the same and'thetubes of the tube frame to carry the yarn simultaneously into the large ends of the tubes and through the tubes and to return them to position, said means acting first to position the pushers simultaneously to engage the yarns, then to position the pushers simultaneously through the large ends of the tubes and through the tubes, then to position them without the tubes.

35. In a tube'threading machine, a tube frame support, a series of pusher needles, means for holding the yarn ends distended between the needles and the large ends of the tubes, and means to move the needles transversely the yarns to push the latter simultaneously through the large ends of the tubes, the needle movement being interrupted when the needles'are brought into position to engage the yarns, and means on the interruption of said needle movement to effect relative lateral bodily movement between the yarns and the needles to wrap the yarns around the needles.

36. In a tubethreading machine, a tube frame support, a series of pusher needles, means for holding the yarn ends distended between the needles and the side of the tube relative lateral bodily threadengagingmovement between the needles and the yarns when the needle movement is interrupted to insure better engagement of the yarn by the needles, andmeans for stripping the yarns;

from the needles beyond the small ends of the tubes.

37. In a tube'threadingmachine, a tube frame support, means for holding the tuft yarns in position to be threaded, a series of needles, means for causing relative movement between the needles and the tubes transversely the yarns to thread the latter simultaneously through the tubes, and means for imparting a lateral yarn engaging bodily movement to the needles.

38. In a machine of the land described, means for holding a loom tube frame in position to be threaded with the tubes vertical and the large ends of the tubes upward, means for holding the yarn ends above the tubes in position to be threaded, a vertically moving needle carrier above the yarn ends and needles mounted in said carrier, and means for actuating the carrier to operate the needles to engage and thread the yarn ends through the tubes on the downward movement of the carrier and withdraw the needles on the upward movement of the carmen 39. In a machine of the kind described, means for holding a loom tube frame in position to be threaded with the tubes vertical and the large ends of the tubes upward, means for holding the yarn ends above the tubes in position to be threaded, a vertically moving needle carrier above the yarn ends, and needles mounted in said carrier, means for actuating the carrier to operate the needles to engage and thread the yarn ends through the tubes on the downward movement of the carrier and withdraw the needles on the upward movement of the carrier, and means for combing or brushing out the ends of the yarn after threading.

40. In a machine of the kind described, means for holding a loom tube frame in position to be threaded with the tubes vertical and the large ends of the tubes upward, means for holding the yarn ends above the tubes in position to be threaded, a vertically moving needle carrier above the yarn ends and needles mounted in said carrier, means for actuating the carrier to operate the needles to engage and thread the yarn ends through the tubes on the downward movement of the carrier and withdraw the needles on the upward movement of the carrier, and means for trimming the yarn ends after they are combed or brushed out.

41. In a machine of the kind described, means for holding a loom tube frame in position to be threaded with the tubes vertical and the large ends of the tubes upward, means for holding the yarn ends above the tubes in position to be threaded, a vertically moving needle carrier above the yarn ends and needles mounted in said carrier, means for actuating the carrier to operate the needles to engage and thread the yarn ends through the tubes on the downward movement of the carrier and withdraw the needles on the upward movement of the carrier, and means for causing a relative bodily sidewise movement between the needles and yarns prior to threading to insure better engagement of the yarns by the needles, and means for stripping the yarns from the needles after they have been threaded through the tubes.

In testimony whereof, I have" hereunto set my hand, in the presence of two subscribing witnesses.

EUGENE TYMESON.

Witnesses:

C. J. SAWYER, J. A. GRAVES.