US1061383A - Sewing-machine. - Google Patents

Description

G. A. KINDER. SEWING MACHINE.

' y 221.1011101 nun 001.0, loos. 1,061,383. Patented May 13,' 1913.

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G. A. KINDER. snwme Mmmm. APPLICATION FILED 00T. 9, 1909.

' l 1,061,383. Patented May 13,y 1913.

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G. A. KINDER. SEWING MACHINE.

APPLICATION FILED 00T. 9, 1909. 1,061,383. l Patented May 13, 1913.

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' Fig. 3 is an end elevation UNT-TED sTATEs PATENT OFFICE.

GARRETT A. KINDER, OF DETROIT, MICHIGAN, ASSIGNOR TO AMERICAN LADY CORSET COMPANY, OF IDETIBVOIIT, MICHIGAN, A CORPORATION OF MICHIGAN.

SEWING-MACHINE.

Speoication4 of Letters Patent.

Patented May 13, 1913.

To all whom it may concern.'

Be it known that I, GARRETT A. KINDER, a citizen of the United States of America, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Sierving-Machines, of which the followingis a specification, reference being had therein to tie accompanying drawings.

The invention relates to sewing machines, and it is the primary object of the invention to provide means for instantaneously stoping the needle bar at any desired time during the continued operation of the feed mechanism.

The particular embodiment of my invention specifically illustrated is one in which the sewing machine is provided with an auxiliary needle bar, which may be stopped or set in motion at the will of the operator, for the purpose hereinafter describe v The invention consists-iirst-in the means for arrestin and restarting the needle bar; second, in t e means for relieving andrestoring the tension upon' the thread; third, in the eculiar construction arran ement and com ination of parts as ereina ter set forth.

In the drawings-Figure 1 is a sectional elevation of the sewin machine to which my improvement is app ied; Fi 2 is a cross section through thelarm of t e machine; Fig. 4 is a per spective view of the need e bai' and operating mechanism therefor; Fig. 5 is a diagrammatic view of the rotary shuttle; Fig. 6 is un elevation thereof; Fi 7 is a section showing the manner of enga ing the thread; Fig. 8 is a plan of the wor performed by the machine; Fig. 9 is a similar view showing a diii'erent part of the work; Fi 10 is a rear elevation of part of themec anism illustrated in Fig. 2; and Fig. 11- is an enlarged section of the work-feed.

Mv improvements are applicable to any of the standard 'constructions of the machine, but the construction illustrated is one of the type known as rotary A is the head of the machine, B the arm thereof, and C the reciprocatoryneedlebar at the outer end of .the arm operated by an suitable mechanism, such ast-he 'pitman and crank E upon the shaft F.

G is the intermittently-operatedl needle .han which is arranged parallel and adjacent to the bar C and derives its motion therefrom.

Where the machine is used for simultaneously producin a double line of stitching.l each of the needle bars D and G is provided with a needle and a thread-tension device, and a pair of shuttles are arranged in the basefor co eration therewith. If, however the mac iine is used for a single line of stitching, the bar G only is provided with a needle.

It is essential to the success of the operation that the needle bar, when arrested in its movement, should be in the upper position when the needle is disengaged from the work. This necessitates mechanism for stopping the needle bar G, which is timed in relation to the movement of the latter, and is practically instantaneous in its operation. For this purpose, I have provided a coupler H for connecting the bar G to the barC, which, as shown, consists of a in rojecting from the bar G and engagea le y the rotation of said bar either with a notched bearing I in the needle bar C, or a notched-keeper J, which will hold the bar from longitudinal movement.

K is a rock arm for rotating the bar G, having a splined engagement therewith and secured in the .stationary bearing.'

T L is a rod for operating the rock arm K, which is controlled in its operation by mechanism of the following construction: M is a bar slidably secured in bearings on the arm B of the machine and connected to the rod L. N'is a 'vibrating member which is actuated by the needle bar o erating mechanism in timed relation to t e movement of the latter. As shown, this member N is actuated by a cam O driven by bevel gear wheels O from the shaft F and the construction is preferably such 'that each phase of the reciprocation of the member N is simultaneous with the complete reciprocation ofthe needle bar C. P and P are oppositely-arran ed do s pivotally secured to the .baro`M an lmova le into the path of a proJecting lug N on the reciprocatory memer N. They arrangement of these dogs is such that when either one is moved into the path of the lug N it will cause a movement of the bar M equal to the travel of the lug N', and this movement will occur in timed relation to the movement of the needle bar. Q is a rockable member for of the coupler .venting the to hold the same out of-f'tli'e .path-v` of the a bearing R von t-he'* frame, an =is' capable of being rocked by a connection S connected to the treadle or foot-actuated trip beneath the table of the machine. T and T are rockable members coperating withvthe member Q and pressed into contact therewith by light springs T2. These members project slightly above the member Q, so as to form a shoulder T3. In the normal position of the parts, the rockable member Q is arranged in the plane of the dogs P P', and one of said dogs is resting thereon, and is thereby held out of the path of the lug N. When, however, the member Q is rocked, it will withdraw its sup ort from the dog, while the shoulder Ta wi 1 prevent the coperating rockable member P, adjacent to said dog, from movement. Thus the dog will be permitted to dropdownward into the path of the lug N', and the succeedin movement of said lug will actuate sai dog and adjust the bar M to its opposite position Iof movement. The movement of the bar M is transmitted tothe rod L, which rocks the arm K and rotates the needle bar G, so as to shift the position pin H. Thus, if the needle bar isprevious y in o eration, it will be stopped, or, if previous y in a state of rest, it will be set into operation. The movement-.of the bar M-just described-will carry the vopposed dog with it and over the cooperating rockable y member T'; This member enga es a cam face P on said dog, so as to lift t 1e latter-into a lposition where itwill be out of thepath'of t elug N prereturn vmovement of said lug from returning the bar All of the movements-'ust fescribed--are so timedthat, beforet e trip lever/can be released to permit the rockable member Q to assume its normal position, the bar M and its do P P have changed position, as has been escribed. When, however, the trip is released, the members Q, Tand T will be restored to their original ositions, and the dog P upon the member will drop down the shoulder TP and willl rest 'upon the member Q inwhich position the partsare all ready for another tripping operation'.

From the description just ivenyitwill be understood vthat each time t e trip'lever is actuated, it will cause-a 'reversalin` the osition of the bar M and thati n'one of ese members theneedle' bar. will be ,set into .o

eration, while in the reverse adjustment t e` operation of the needle bar wil bestopped In each case, the operation occurswhen the needle bar is at theupperend'of` its stroke, so', that the ,needle is withdrawn'. from 4the work and permits the continued feeding of the latter. This will cause the drawing out ofbo-th-the upper and lower threads from their respective tension devices. For c ertain classes of work, the needle bar remains `out of operation during a forward and re- .turn feed of the work, which necessitates the provision of some means for taking up the slack in the thread before the needle can again be thrown into effective operation. I have devised for this purpose an automatic take-u for the thread, 'of the fol- ;lowing construction: U is a rod connecting fithe bar M with a bell crank lever U at the outer end of the arm B of the machine. One @of the arms of this bell crank lever engaees the thread for the intermittently-operable I,needle at a oint intermediate the tension V @therefor an the needle. The arrangement :is suoli that when the needle is in operation. fthe arm of the lever U forms merely one of 5the uides for the thread, but, when' the nee ,dle ier is sto pcd, this guide is simultaineousl. shifter 1n position, so as to furnish 'slack in the thread sutlicient for the con- Itinued forward feeding of the work. After lthe return feeding of the work, the needle bar is a ain started simultaneously, the lever 2U is shifted in position to take up the slack in the thread and place the proper tension 'on the thread for successful operation. The lower thread must also be provided with a take-up mechanism, and, as illustrated, this` is applied to the rotary shuttle W. This consists of an arm lV', havin a limited oscillator movement, and provided with a spring ivi; for yieldingly drawing it toward one limit of its movement. W'a is a threadguide at the end of the arm W', over which the thread is drawn at a oint intermediate the tension and the wor The tension is sufficient to overcome the s ring W2, so that during operation the arm SV will be at the opposite limit of its adjustment, but, whenever there is any slack in the thread to be taken up, the spring 'W2 will automatically reverse the osition of said arm W and the guide Wa t ereon. As has been stated, the tension of the spring W2 is less than the main tension of the shuttle, but it is sufficient to cause the proper operation of the machine until the main tension is restored by the drawing back of the arm W into its normal position.

The machine constructed as described may -be used for various urposes, both with the single and the doub e needle bar. One use for the single bar machine is illustrated in Fig. 9, in which X is the cloth body of a corset, and X indicates one of the steels in a pocket in said body. Where it is desired to stitch along the line X, which is transverse to the steel X', the feeding movement of the work may be continuedv throughout the full line of stitchin while the needle bar may be drawn out o action whenever it comes into registration with one of the ating one of tive until the steel'is passed.V

In Fi 8-is illustrated'one use for the'dou- 'i ble' nee le'bar machine, in--which-Yv rep-- resents a cloth gore inserted in a body-perf tion I of the arment, and is secured thereto by fparalle lines of stitching Y2 Y". Each o these lines extends in one direction along one side of the'gore to the apex thereof, and then changes its direction to extend along the opposite side of the gore. operation, both needle bars are maintained in action until the apex Y* of the line Y is reached. At this point, the needle bar is stop eed, while the work continues to feed onwar until the stitchine' along the line Y2 reaches the apex Y". 'fhe operator then changes the direction of feed without interruption, and continues until the inactivo needle bar again reaches said point Y, at which instantthe bar is again thrown into operation, and continues the stitching of the line Y". 'Durin the inactive period of the needle bar, the t read is paid out, as has been freviously'described, and the lower threa is necessarily drawn along the upper face of the worktable beneath the work. To prevent binding of this thread, the plate Z eneath the presser foot Z is slightly recessed at Zz to form a channel through which the lower thread may be drawn.

IVhat I claim as my invention is: 1. In a sewing machine, the combination with a reci rocatory needle bar, of an auxiliary need e-bara coupler arm on one of said bars normally engaging a kee erl on the other bar, a rock arm eathere the arm-carrying bar for rotating the same to disen age said arm from the other bar, and mec anism timed .with the reciprocation of the main bar for operating said rock arm.

2. In a sewing machine, a plurality of reciprocatory needle bars, means for .opersaid `bars, and means for cou-y to said first mentioned gling another bar ar y a rotation of one of said bars.

3 In a sewing machine, the combination of a reci rocator needle bar, tension means for the t read o the needle, means timed in relation to the reciprocatory needle bar for arresting movement of said needle bar during the continued operation of the machine, and means for releasing the tension of the thread simultaneously with the arresting of the needle bar.

4. In a sewing machine, a plurality of reciprocatory needle bars, means for operating one of said bars, means for alternately connecting and disconnecting another bar to said first mentioned bar by the rotation of another of said bars, and means for arresting the movement of the bar disconnected.

5. In a sewin machine, a plurality of reciprocatory nee le bars, means for operating said first mentioned upon-- one' ofV saidfbars, means operated in timed relation to said first mentioned means for alternately connecting and disconnecting another'bar to saidfirst mentioned bar at a predetermined-point in the movement of said second mentloned bar by the rotation of one of said bars, and means for arresting the movement of the bar disconnected.

6. In a sewin machine, a plurality 'of reciprocator nee le bars, means for operating one of sai bars, means for coupling another bar to said first mentioned bar by the rotation of one of said bars, a trip operable at any point in thetravelof said bars for setting said coupling means into operation at a predetermined point in the travel of one of said bars.

7. In a sewing machine, a plurality of reciprocatory needle bars, means for reciprocating one of said bars, mechanism for alternately coupling another bar to said first mentioned ment of the second bar, and means for alternately operatively connecting said first mentioned means with and releasing the same from said mechanism for the purpose described.

. 8. In a sewin machine, a plurality of reciprocatory nee le bars, means for reciprocating one of said bars, reciprocatory mechanism for alternately coupling another bar to bar and for arresting the movement of said second bar, and a connection between said reciprocatory mechanism and said means. 9./ In a sewing machine, a plurality of reciprocatory nee le bars, a rotary member, a connection betweenrsaid rotary member and one of the bars for reciprocating the latter,

mechanism for alternately couphng another bar to said rst mentioned bar and for arresting the movement of the second bar, and means for actuating said mechanism adapted to be laced into and out of operative relation with said rotar member.

10,. In a sewing mac ine, a plurality of reciprocatory need e bars, a rotary member, a connection between said rotary member and one of the bars for reciprocating the same, means for alternately coupling another bar to said first mentioned bar and for arresting movement of the second bar by the rocking of one of the bars, and means for rockin said last mentioned bar adapted to be placed into and out of operative relation to said rotary. member.

11. In a sewing machine, a plurality of reciprocatory needle bars, a rotary member, a connection between said rotary member and one of the bars for reciprocating the same, means for alternately coupling another bar to said first mentioned bar and for arresting movement of the second bar by the rocking of one ofthe bars, and a reciprocatory member for rocking said bar.

bar and for arresting the move- IBC.

c driven by said shaft, ,and means operated -Athe tension means, simultaneously with the 1 said member in o poslte directions.

-.;dle, means for alternately arresting and re- 12.In1a sewin machine, a pluralitl of. re`., ciprocatory neek le. bars,a Arota1*y.. s it, a

connection `betweentlieshaft and :one v.ofthe bars for reciprocating thelatt'elg a membr l. y said member for alternately connectlng van disconnecting ,one .of said bars with the first mentioned bar. p 13., In asewing machine, a plurality of reciprocatory need e bars, a rotatable shaft, a connection betweenv .the shaft and one of the bars for reciprocating the same, a member; driven by said shaft, a reciprocatory mem-z ber for alternately .connecting and discon-A necting another l.of said bars with the first. mentioned bar, and means for alternately, coupling said first mentioned member wi and disconnecting the same from the recipcatory member, a reciprocatory needle bar,. mechanism for reciprocating said bar, tension 'means forl the thread of the needle, means for arresting the movement of theI needle bar at a predetermined point in its path of movement, and means for relieving arresting of the needle b ar.

14. In a sewingmachlne, a reciprocatoryL needle bar, means for reciprocating-said bar,

tensioning means for the thread of the nee- I ciprocating said needle bar duringthe continued operation of said means, and means for actuating saidv tension means to release Copies of this pstent'may be obtained foi-nn cents "and restore the tension upon the thread simultaneously with 4the arresting and start- ;ing .res ectively of the needle bar.

.15. a sewing machine, a plurality of reciprocatory need e bars, a rotary member, a

d 4 connection between said rotary member and lone of said needle bars for reciprocating the same, reciprocatory means for alternately vvconnecting and disconnecting another bar with said first mentioned bar, means for releasing and placing a tension on the thread, reciprocatory mechanism for operating said tension means, a connect-ion between said reciprocatory means, mechanism for operating the same simultaneously, and means for cou ling and disconnecting said connection wit the rotary member.

16. In a sewing machine, a plurality of reciprocatory need e bars, means for reciprocating one of said needle bars, a reciprocator member for alternately connecting and isconnecting another bar with said first mentioned bar, -and a connection between said reci rocatory member and said first mention means :for alternately moving In testimon w ereof I aiix my signature 1n presence'o two witnesses.

GARRETT, A. KINDER.

Witnesses NELLIE KINsnLLA, HARRY W. GRAHAM.

each, by addressing the Commissioner of Patente.

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