US733586A - Needle-motion for looms. - Google Patents

Description

PATENTED JULY 14, 1903.

G. F. HUTGHINS.

NEEDLE MOTION- PoR LooMs.

APPLICATION FILED PEB. 17, 1902.

PATENTBD JULY 14, 1903..

G. P. HUTGHINS. NEEDLE MOTION FOR LOOMS.

APPLICATION FILED FEB. 17, 1902.

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PATENTED JULY 14,' 1903..

G. E. HUTGHINS'. NEEDLE MOTION EUR LOOMS.

APPLICATION FILED EEB. 17, 1902. l

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STATES 'Patented July 14, 1903.

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GEORGE F. HUTCHINS, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO CROMPTON it KNOlVLES LOOM WORKS, OF WORCESTER, MASSACHU- SETTS, A CORPORATION OF MASSACHUSETTS.

NEEDLE-MOTION Fon LOoMs.

SPECIFICATION forming part of Letters Patent NO. 733,586, dated July 14, 1903.

Application filed February 17, 1902. Serial No. 94.337. (No model.)

To @ZZ whom, it may concern:

Be it known that I, GEoRGE F. HUTCHiNs, a citizen of the United States, residing at Worcester, in the county of lVorcest-er and State of Massachusetts,have invented certain new and useful Improvements in Needle-Motions for Looms, of which the following is a specification.

My invention relates to pile-fabric looms, and more particularly to the needle-motion of looms for weaving moquette or Axminster fabrics, in which in weaving wide rugs a long needle must be used, which is inserted through the shed and is then drawn out, leaving' a double filling-thread to engage and hold in place the tufts of yarn which have been inserted into the shed in the form of loops in the operation of the loom in the usual and well-known way in the class of looms referred to.

The object of my invention is to improve upon the ordinary construction of the needlemotion in the class of looms referred to and to provide a needle-motion of simple construction to be used particularly on wide looms for weaving rugs and by means of which a very long needle carrying the lling-thread may be positively and regularly inserted into and drawn ont of the sheds in the operation of the loom. Y

My invention consists in certain novel features of construction 0f my needle-motion, as will be hereinafter fully described.

Referring to the drawings, Figure 1 is a front view of a needle-motion for pile-fabric looms embodying my improvements looking in the direction of arrow ai, Fig. Fig. 2 is a plan view of some of the parts shown in Fig. 1 looking in the direction of arrow b, same figure.' Fig. 3 is a section on line 23, Fig. 1, looking` in the direction of arrow c, same ligure. Fig. 4 shows the large bevelgear shown in Fig. 3 detached. Fig. is an edge view of the parts shown in Fig. -1 looking in the direction of arrow d, same figure. Fig. l5 shows the opposite side of the gear shown in Fig. i looking in the direction of arrow e, Fig. Fig. 7 is on an enlarged scale a detached longitudinal section of the needle vstruction of the needle.

and the rim of the actuating-Wheel carrying pins, taken on line 7 7, Fig. S. Fig. S is a crosssection on line S 8, Fig. 7, looking in the direction of arrow f, same figure. Fig. 9 corresponds to Fig. 8, but shows a modified con- Fig. 10 is a longitudinal section of the needle shown in'Fig. 9. Fig. 11 is a bottom view of the needle shown in Fig. 10 looking in the direction of arrow g, same iigu re. Fig. 12 is a side view of the guiding-block on the outer end of the needle, of triangular shape in cross-section to prevent the rotation of the needle. Fig, 13 is an end view of the guiding-block shown in Fig. 12 looking in the direction of arrow h, same figure.

In the accompanying drawings,1 is the loom side or frame, inthis instance the right-hand side when facing the loom. 2 and 3 are supporting-frames, and e is a frame for supporting the outer extremity of the raceway for the needle. A cross-girth 5 is secured to the loom side 1 and the frames 2 and 3 and has thereon the ears or lugs 5', to which are secured the stands 6 and 7. Upon the frame ai is secured the stand S.

The raceway 9 for the needle 10 is supported in a horizontal plane on the stands G, 7, and S and secured thereto by bolts or otherwise. The position of the inner end of the raceway 9 may be slightly adjusted vertically, in this instance by means of a bolt 6 turning in an ear 6" on the stand 6 and engaging at its upper end the bolt 9, securing the raceway 9 to the stand 6, which bolt extends through an elongated opening 9" in the lower part of the front end of the raceway 9, as shown in Fig. 1.`

On the frame 3 is a box or bearing 11 for the outer end of the bottom shaft 12, and keyed to the shaft 12 is a disk or face-.plate 13. A mutilated bevelgear 14 isV loosely mounted on the shaft 12 for purposes of Iadjustment and is secured tothe face-'plate 13 by bolts 13', which extend through elongated slots 14' in the bevel-gear 11. (See Fig. 6.)

' It will be understood that the bottom shaft 12 rotates continuously in one direction during the operation of the loom and causes the face-plate 13 and bevel-gear 14 to rotate with it. rlhe bevel-gear 14 engages the bevel-pinion 15, keyed on the cross-shaft 16, mounted in a bearing or box 17 on the cross-girth 1S, which extends between the frames 2 and 3. On the outer end of the cross-.shaft 16 is fast a crank-arm 19, having thereon a stud 20, on which is pivotally mounted one end of an adjustable connector 2l. The other end of the connector 21 is pivotally connected with a stud 22, secured in a radial slot 23 in the cross-bar 23" of the segment-gear 23 and adjustable up or down in said slot, in this instance by means of set-screws 22. The lower end of the segment-gear 23 is pivotallymounted on'a stud 24, lfast in a stand 25, secured to the cross-girth 26. The stud 24 may also be supported from the floor by a stand 27, secured to the fioor, and a plate 2S, secured to said stand 2". (See Fig. 2.) The rotation of the bottom shaft 12 through bevel-gear 14, pinion 15, shaft 1G, crank-arm 19, and con nector 21 causes the segment-gear 23 to be oscillated or to be moved back and forth on its pivotal support. The teeth of the segment` gear 23 engage the teeth of the pinion 29, fast on a shaft 30, mounted in bearings on a stand 31, secured to the cross-girth 5, a'nd also on a stand 32, secured to the raceway 9. (See Figs. 1 and 2.) Also fast on the shaft 30 is awheel 33, having a grooved periphery and a series of outwardly-projectng pins 33', secured in said groove. (See Figs. 7 and S.) The wheel 33 is fast on shaft 30, between the bracket 32 and the pinion 29, and the lower part of the raceway 9 is cut away, as shown by broken lines in Fig. 1, to allow the free rotation of the wheel directly under the needle.

The needle 10 is preferably of tubular shape, with a series of holes 10 in its under surface at distances apart corresponding` to the distances between the pins 33 on the wheel 33 and of a size to freely receive the projecting ends of the pins 33', as shown in Figs. 7 and S. The revolution of the wheel 33 first in one direction and then in the other by the engagement of the pinion 29 with the segment-gear 23 will cause the pins 33' to engage the holes 10 in the under side of the needle 10 to drive said needle in and out of the open shed (shown by broken lines in Fig. 3) in the operation of the loom.

In the practical operation of the loom it is necessary to apply a brake to the stationary revolving wheel 33, carrying the pins 33, at the completion of the needles motion in each direction. In this instance I provide on the inner end of the shaft 30 a grooved brakewheel 35, intermediate the stand 31 and the girth 5. (See Figs. 2 and 3.) One end of a friction-belt 36, which passes over the brakewheel 35, is attached to a pin 37' in the lower end of abracket 37, secured to the girth 5, and the other end of the friction-belt 35 is attached to one end of the centrally-pivoted lever 38, mounted on a stud 39 in a stand 40, secured to the frame 2. The other weighted end of the lever 3S is rounded at 38 and bears on the hub 19' of the crank-arm 19 and during the revolution of the crank-arm 19 is engaged by the oppositely-located cam-surfaces 19 on the hub 19. (See Figs. 1 and 3.) The oppositely-located ca1ns19l are placed so as to engage and raise the end 33' of the lever 3S at the proper time and just previous to the completion of the stroke of the needle in each direction. The raising of the end 33' of the lever 38 lowers the opposite end of said lever and draws down the end of the friction-belt 3G attached thereto to apply friction to the wheel 35 and through shaft 30 to the wheel 33, carrying the pins 33.

After the needle has been inserted into the shed and then withdrawn in the mann er above described there is a period of rest for the needle while the lay beats up and moves back for the formation of the next shed preparatory to another insertion of the needle. This period of rest or dwell of the needle I obtain inv this instance as follows: The bevel-gear 14 is mutilated and has open or blank spaces 14, on which there are no teeth. (See Fig. 6.) The bevel-pinion 15 (see Fig. 5) is also mutilated or provided with open or blank space 15', on which there are no teeth, to permit dis- Y engagement and rengagement of the teeth on the pinion 15 with the toothed part of the gear 14. lVhen a double tooth 14 on the gear 14 engages the double tooth 15l on the bevel-pinion 15, the shaft 1G begins to revolve, and as there are the same number of teeth on the pinion 15 as in each toothed portion of the gear 14 the shaft 16 is given one complete revolution. In order to hold the bevel-pinion 15 in place during the time it is stationary, ready for the next series of teeth on the gear 14, I provide a checking or locking device. On the hub of the pinion 15 is in this instance the eX- tended plate or flange 41, (see Fig. 1,) with a bearing surface or edge 41 and with cornerextensions 41", said corner extensions 41" being adapted to engage and enter openings 42 in the circumferential peripheral flange 42 on the gear 14. The continued revolution of the gear 14 and the pinion 15 brings the corner extensions 41H on the plate 41 into engagement with the opening 42 in the flange 42 (see Fig. 3) to hold the plate 41 and the pinion 15. When the point of disengagement is reached between the pinion 15 and the toothed part of the gear 14, the plate 41 has revolved until the bearing-surface 41' is in sliding engagement with the flange of the gear 14. After the gear 14 has traveled to the point of rengagement with the pinion 15 to rotate the same the other corner extension 41 on the plate 41 enters the second opening 42/ in the flange 42 on the gear 14.

On the outer side of the face-'plate 13 is a series of ribs 13", one of which has a forked end 13', Figs. 3 and 4, and between the arms of thefork 13"there is an opening13through the face-plate 13 through which passes a lug or extension 43 on the back of the gear 14. Two set-screws 44 turning in the ends of the fork 13 engage with their inner ends the lug ICO rio

or extension 43 and permit adjustment of the gear 14 relative to the face-plate 13. The bolts 18', which extend through the elongated slots 1-1 in the gear 1i and are secured to the face-plate 13 by nuts 5, serve to secure the gear 1l to the face-plate 13 in its adjusted position, as above stated.

In Figs. 9, 10, and 11 is shown a modified construction of the needle. In these figures the needle 4:6, which is of circular shape in cross-section, extends over and partially incloses a corresponding shaped rod 47, of wood, fiber, or other suitable material. The rod -17 has a flat bottom or base in which are bored holes 47 for the entrance of the pins on the pin-wheel 33. The needle 46 and rod 47 may be secured together by transverse pins 48. (Shown in section in 10 and by broken lines in Fig. Il.)

ln Figs. 12 and 13 is shown the outer end of the needle, secured to a triangular-shaped block 4l), whose three sides engage a triangular-shaped slot in the raceway 0, as shown in Fig. Said triangular-shaped slot is. preferably made by undercutting the bar D forming the front and top of the raeeway and securing to the inner side of the bar 9 a second bar 9', having a beveled upper edge to form with the undercut part of the bar 9 a triangular-shaped slot or passage-way for the free passage of the needle and the triangularshaped block 49 on the end thereof. Said triangular-shaped block 4f) prevents the turning of the needle in the passage-way in the raceway.

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

lVhile I have shown the segment-gear 23 and pinion operatively engaged therewith to transmit the motion of the mutilated gears to the wheel or drum to cause the needle to be moved into and out of the shed by opposite rotations of said wheel or drum, it is to be understood, of course, that my invention is notlimited in this respect, as any usual or desired form of mechanism may be employed to transmit the motion of the mutilated gears to the wheel or drum Without departing from the spirit of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a loom for weaving moquette or Axminster fabrics, in which a non-flexible needle is inserted from one side only of the loom through the shed, and then Withdrawn before the beating up of the lay leaving a double iilling-thread, the combination with a nonliexible needle, detachable from its operating mechanism, and a wheel or drum connected with said needle, of means for operating said wheel or drum to rotate the same first in one direction and then in the other to carry the non-flexible needle through the shed, and withdraw it from the shed before the beating up of the lay, substantially as lshown and described.

In a loom for weaving moquette or AX- minster fabrics in which a needle is inserted through the shed and then withdrawn leaving a double filling-thread, the combination with a needle, a wheel or drum operatively connected with said needle, a mutilated gear, of

means for operating the same, and connections between said mutilated gear and said wheel or drum to rotate the latter iirst in one direction and then in the other, to carry the needle through the shed and withdraw it from the shed before the beating up of the lay.

3. In a loom for weaving moquette or AX- minster fabrics in which a needle is inserted through the shed and then withdrawn leaving a double filling-thread, the combination with a needle, a wheel or drum operatively connected with said needle, a driven shaft having a mutilated gear, a second mutilated gear meshing with the first-named mutilated gear, and connections from said last-named mutilated gear to said wheel or drum to rotate the latter first in one direction and then in the other, to carry the needle through the shed and withdraw it therefrom before the beating up of the lay.

4. In a loom for weaving moquette or AX- minster fabrics, in which a long needle is inserted through the shed and then withdrawn, leaving a double iilling-thread, the combination with a needle, and a wheel or drum operatively connected with said needle,of means for operating said wheel or drum to rotate the same, first in one direction and then in the other, to carry the needle through the shed, and withdraw it from the shed, before the beating up of the lay, andabrake mechanism for checking the movement of the needle, substantially as shown and described.

5. In aneedle motion for looms, the combination with a long needle, a wheel or drum operatively connected to said needle, means for operating said wheel or drum to rotate the same, first in one direction and then in the other direction to carry the needle through the shed and withdraw it from the shed to leave a double filling-thread therein before the beating up of the lay, and a brake mechanism operative to cheek the movement of the needle at the end of its stroke.

6. In a needle-motion,the combination with the needle, and a driven shaft, of intermediate mechanism, comprising a mutilated gear, a second mutilated gear or pinion meshing therewith, a crank, a connector to a segment or partial gear, and said segment, a pinion meshing therewith, a wheel or drum operated by said pinion, and engaging, or connected with the needle, substantially as shown and described.

7. In a needle-motion, the combination with the needle, and a driven shaft, of intermediate mechanism, comprising a mutilated gear, a second mutilated gear or pinion meshing IOO therewith, a crank, a connector to atsfegment or partial gear, and said segment, a pinion meshing therewith, a Wheel or drum operated by said pinion, and engaging, or connected With the needle, and a friction or brake mechanism for the Wheel or drum, automatically operated to check Jthe needle at the completion of its movement in one or both directions, substantially as shown and described.

S. In a needle-motion, the combination With the needle, and a driven shaft, of intermediate mechanism, comprising a disk or plate fast on the driven shaft, a mutilated bevel-gear adjustably attached thereto, a mutilated bevelpinion meshing with said bevel-gear and fast on a shaft, and said shaft, a crank fast thereon, a connector from said crankv to a segment or partial gear, and said partial gear, a pinion meshing with and operated by said segmentgcar, a Wheel or drum fast on the shaft of and turning With said pinion, and engaging', or connected With the needle to communicate a reciprocating movement thereto, substantially as shown and described.

D. In a needle-motion, the combination with the needle, and a driven shaft, of intermediate mechanism, comprising a disk or plate fast on the driven shaft, a mutilated bevel-gear adjustably attached thereto, a mutilated bevelpinion, a checking or holding device therefor, said pinion meshing` with said bevel-gear and fast on a shaft, and said shaft, a crank fast thereon, a connector from said crank to a seging, or connected with the needle, to communicate a reci procatin g m ovement thereto, substantially as shown and described.

10. In a needle-motion,the combinationwith a needle, having a series of holes therein, of a stationary rotatable Wheel, carrying pins to engage said holes, and means for communicatin a reciprocating revolving motion to said Wheel, to give the needle a reciprocating motion, to carry the needle into the shed and Withdraw it therefrom leaving a double iilling in the shed before the beating up of the lay, substantially as shown and described.

ll. In a needle-motion,the combinationwith a needle, adapted to travel in a slot or passage-way in the raceWay for the needle, and having a non-circular block on its end to prevent its turning, of means connected with, or engaging the needle, to communicate a reciprocating movement thereto, and means for checking or stopping the needle at the end of its movement in one or both directions, substantially as shown and described. A

GEORGE F. HUTCHINS. Vitncsses J. OfDEWEY, M. HAAs.

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