US815069A - Shuttle-actuating mechanism for sewing-machines. - Google Patents

Description

No. 815,069. l PATBNTBD MAR.'13, 1906.

G. L. GGRGORAN G G. A. DOBYNB. SHUTTLE AGTUATING MBGHANISM POR SEWING MACHINES.

APPLIGATIO FILED FER-20, 1903.

4 SHEETS-SHEET l.

PATENTED MAR. 13, 1906.

G. L. GORGORAN n Gr. A. DOBYNE. SHUTTLEAGIUATING MEGHANISM FOR SEWING MACHINES.

APPLICATION FILED FBB.20,1903.

4 SHEETS-SHEET 2.

No. 815,069. PATENTED MAB.. 13, 1.906.

G. L. GORGORAN & G. A. DOBY'NB. l lSHUT'I-LE AUTUATING MECHANISM FOR'SEWING MACHINES.

APPLICATION FILED FEBVRO, 1903.

` 4 SHEETS-SHBBT 4.

f TUMTED(STATES PATENT* OEEIOE.

GEORGELLOOROORAN AND GEORGE A. DORYNE, OE ST. LOUIS, MISSOURI, i

, t ASSIGNORS-Er DIREOTAND MESNE ASSIGNMENTS, TO CHAMPION `SHOE fMAoHINERYOOMPANY, OEST. LOUIS, MISSOURI, A CORPORATION OE chine 1 ,withr the `present invention applied.

aan elevation on about the` line 5 5'zoifFigg1`- QMISSOURL e sl-.l'uT-rl.'E-A'OTUAi'kl'lue.V MECHANIsM FOB sEwlNG-MAOHINES.

Ne.815,o69.

ful Improvement in Shuttle-Actuati'n- Mech-i anism, of which the following is a 'ful clear,- and exact description, such as will enable others -skilled in the art to which it appertains to make and'use the same, reference being. had to theaccompanying drawings, forming part of this speciiication, in whichf Figure 1 is' a side elevation of'al sewing-ma- Fig. 2 is a iront elevation of the portion of the machine which supports'the shuttle. Fig. 3

is -a detail ytransverse sectional elevation` through about the vertical center of the shut- Fi'g; 4 isa-horizontal sectionalgeleva-gtle. tionon about'the line 4 4 of Fig. 2. Fig. k5 is looking from the right of saidfigure'. Fig. 6 is a detailk view showing the rear vend'oithe main shuttle-drivingv shaft and the lsegmental gear or. shuttle-driver which cooperates 'i with a gear uponsaid shaft. Fig. 7 is a ver-v ticalsectionalelevation of the parts shown in Fig. 6. Fig. Sis a diagrammatic view illustrating, primarily, thecam which actuates the.shuttle-driverthis view also showin :the

s relative movements of the clutch and o the "being-particularly'adapted to use in sewingshuttle; :and vFig-9 is: a view showing the clutch-.cam deve ped.

Gur invention relates to improvements' in shuttle-actuating mechanism, the invention mac nes. v

Among our objects is to provide mechanism whereby a rotatable shuttle can be intermittently rotated,sthev shuttle remaining at rest for a length of time-necessary to 'permit certain Operationsof the machine embodying the shuttle, then being Vrotated in order to cause its point to englagethe loop of thev thread and to carry suc oop about the bobbin-thread ina well-understood manner and being thenbrought to 'rest in vorder to permit the proper devices` of the machine `to Slowly take upthe loop.y t

, ally upon mechanism ofthe characteriindi- Mspeeeatien ef Lettere Pate1it-` '1 Application filed February 2 0, 1903.` Serial No. 144.318.

Patented Merch 13, 190e.

cated our invention consists'in the various matters hereinafter described and claimed. i

a Vdriving-pulley b.

` C'is the work-table, below whichrthe shut-'k receives its power from any suitable source,`r` such shaft being here shown as provided withv tle is supported in the Organization illustrated,

and 30 1s a rock-shaft which ktransmits motion to certain elements of the organized machine, this shaft having bearing upon the.

present matter only in that it serves asa support `for one of the levers or arms employed in 'the shuttle mechanism. The main shaft BV The beforecarries a' cam disk or block 5. mentioned shaft 30 extends horizontally and a plane at substantially rightangles to the plane including the shuttle, and the shuttledrivinglshaft 97 is suitably supported upon the. machine-standard and lies substantially parallel with the before-mentioned shaft 30,

-the main shaft "B being parallel to the shafts 30 and 97 and lying intermediate said shafts` The shuttle I comprises a generally circular -memberhaving a cut-away portion 100, byV

means of which the point 1,01 is produced and there is also roduced the wall or surface 102, adapted to e engaged by the hereinaftermentioned driving-lugs. The shuttle is recessed, las shown at 103, for the purpose of receiving `the bobbin 104, a .plate 105 holding the bobbin in place in any suitable manner and being'provided withan opening 106 for l the -passage of the bobbin-thread. The pe-f riphery of theshuttle is provided with a rib 107, adapted to operate in a groove 108, Said groove being concentric with thel shuttle and being conveniently produced by forming av shoulder'109 inthe shuttle-supporting member andsecuring a guard-plate 110 to said supporting member in such manner that the groove 108 is formed between the said shoulder andthe Said guard member., the rib. 107

lying between the Said elements. Pivotally `rsupported upon the standard isa plate 111, which isadaptedto be thrown across a or-Y To these ends and also to improve gener-l tionof the face of the plate 10,5, this locking- 112, in which is received an eccentric proj ection 113 upon the plate 105. Thus the bobbin is prevented from rotating with the shuttle. The locking plate 111 is preferably yieldingly held in closed position, as by means of a spring 114.

Secured to a shaft 84, concentric with the shuttle, is a driving-plate 115, upon whose outer surfaces are the before-mentloned driving-lugs 116, these lugs being adapted in the rotation of the driving-plate to engage the before-mentioned wall or surface 102 of the shuttle, and thus carry the shuttle with said driving-plate'. The hereinbefore-mentioned rotatable shaft 97 is provided with a gear 1 17, and this gear is in driving connection with the gear 118 upon the shaft 84, such connection being conveniently effected through the intermediate gear 119. Therefore the rotation of the shuttle is controlled by the rotation of the driving-shaft 97 and as one of the driving-lugs 116 lies between the before-mentioned shuttle-wall 102 and the shuttle-point 101 said lug serves to prevent undesired movement of the shuttle after the driving-plate 115 has come to rest. VThere is sufficient space between the locking-plate 111 and the face of the shuttle and the face of the recessclosing plate 105 to permit the passage of the loop, and there is sufficient space between the driving-lugs 116 and the shuttle to permit the withdrawal of the loop by the take-up.

In order to cause the shuttle to be intermittently rotated, said shuttle being carried through a portion of a revolution in order to enter the loop, continuing through the revolution to carry the loop about the bobbinthread, and then coming to. rest in order to permit the loop-thread to be slowly drawn taut, the driving-shaft 97 is intermittently rotated in the manner to be now described. The driving-shaft 97 is provided with a noncircular portion 120, and loosely mounted upon the saidv shaft, as between one end of said non-circular portion and a suitable standard 121, is a gear 122, provided with a plate 123, having pln-receiving openings 124. Slidable upon said non-circular portion 120 is a clutch-sleeve 125, which has a peripheral recess 126 and is provided upon one side with pins 127, adapted to enter the before-inentioned openings 124 in the loose driving-gear, the other face of the said clutch-sleeve being provided with openings 128, adapted to receive pins 129, projecting from any relatively fixed portion of the machine. Preferably o enings are bored entirely through the c utch-sleeve in both of the flanges upon the sides of the before-mentioned eripheral recess 126, said openings being in line with each other, whereby they can be readily produced, and the pins 127 are driven or otherwise secured in the openings upon the desired side of the clutch-sleeve. It is to be noted that the pins 127 and 129 are of such lengththat the clutch-sleeve is always in engavement with either the pins u on the relativey Xed support or the said riving-gear, the pins 129, for example, enterin the openings 128 before the pins 127 leave t e openings 124. Thus as the pins 129 are in fixed positions and by reason of the mechanism hereinafter described the driving-gear 122 always comes to rest in a given osition the clutch sleeve when about to e shifted is always guided into the desired new osition.

Suitably pivoted, as upon the stud 130, is a rocking plate 131, provided with a segmental gear' 132, and pivoted upon the before-mentioned rock-shaft 30 is a lever 133, which is preferably connected to `the said rocking plate by means of a link 134, said lever being provided with a cam-roll 135, which-enters the cam-groove 136 in one face of the cam block or disk5, this cam-groove being shown most clearly in Figs. 5 and 8.

Suitably pivoted, as upon the stud 136, is a 'lever 137, whose lower free end is provided with a yoke 138, the arms of said yoke bein r received in the before-mentioned periphera groove 126 in the clutch-sleeve 125. Said lever 137 is provided with a cam-roll 139, which enters a cam-groove 140 in the periphery of the cam-disk 5, the said cam-groove being shown developed in Fig. 9. The segmenta gear-plate 131 serves to impart rotary motion to the driving-gear 122, and the lever 137, with its yoke, of course controls the clutch-sleeve 125, by means of which said driving gear 122 is operatively connected with the shaft 97.

Referring now more particularly to Figs. 8 and 9, it will be seen that when the parts are in what we have termed their normal po- -sitions with the shuttle at rest, as shown in Fig. 2, rotation of the cam-disk 5 permits the segmental gear to remain at rest and also pe'rmits the clutch to remain at rest in the gearengaging position shown in Fig. 7, the peripheral cam shown in Fig. 9 then causing the clutch to be thrown into unlocking position, although it and the shaft 97 are held against rotation by reason of the engagement of the clutch-sleeve by the stationary pins 129. After the clutch has `been thrown into such open position it rests in said position, While the segmental gear-operating cam causes said gear to be thrown backwardly in order to place the same in driving position, the gear 122 merely idly rotating upon the shaft 97 as said segmental gear is thrown into its said backward or what may be termed operative position. After the segmentalV gear has reached the said position and whi le the same is at rest the clutch-sleeve is thrown into closed position, engaging the driving-gear 122, thus locking said gear in drivingconnection with the said shaft 97, and soon after the clutch-sleeve has thus locked the driving- Vgear upon the said shaft the segmental gear- IOO ' of drlvmg movement `of the segmentalgear operating camcausessaid gear tobe-.thrown 4forwairdly,`and thus causes rotation -of the shaft 97.

.From the time of the starting ofthe machine until this time at which the segmental -driving-gear commences itsforward movementthe driving-shaft 97 has been at rest and has been locked in its position of rest by .reason of the engagement of the clutch-sleeve .witheither the'gear 122 when held against movement by the segmental driving-gear or the stationary pins 129.

and movin through a complete revolution by reason o the proportions of the gears 117, 118,. and 119, notwithstanding the fact that the Ashaft 97 may not be 'driventhrough a i complete revolution.

We are aware that minor changes in the construction, arrangement, and combination of the several parts of our device can be made and substituted for those herein shown and described without/in the least departing from the nature and principle of our invention.

Having thus described our invention, what we claim as new, and desire to secure'by Letters Patent, is.

l. The combination with ashuttleand its complementary stitch-forming mechanism,

of means for intermittently operating said shuttle and comprising a driving-shaft having driving connection therewith, a gear having mgvement independent of said shaft, a plate pivoted Afor rocking movement and cooperating` with said gear, a cam, a pivotallysupported arm connected to said rocking plate and provided with a p art coperating with said c am, a clutch adapted to connect said gear and said shaft, andy means for operating said clutch; substantially as described.

2. The combination with a shuttlev and its complementary stitch-forming mechanism,l

vcomplementary stitch-forming mechanism,

During about thel llast quarter of revolution of the cam-disk 5,'

of means for intermittently operating saidshuttle and comprising a gear having movement independent ofsaid shuttle., an intermittently-movable driving member coperatmg with said gear, means for locking said driving member against movement, a clutch adapted to'connect said gear to said shuttle, means whereby said clutch is locked to said gearto hold` the shuttle against movement `during the time that the said driving member is locked against movement, means whereby said clutch is locked against shuttle-driving movement and out of engagement with said gear, to lock said shuttle against movement 4 duringthe movement of said driving member other than shuttle-driving movement, and means whereby said clutch connects said gear and said shuttle and is free lto receive shuttle-driving movement during the time that said driving member moves throu h its.

shuttle-driving movement; substantial y as described.

4. The combination with a shuttle and its complementary stitch -forming mechanism, of means for intermittently operating said shuttle and comprising a vdriving-shaft hav- -ing driving connection therewith, a gear havingmovement independent of the shaft, a

plate pivoted for rocking movement and co-` operating with said gear, a cam-disk having a plurality of cams, a pivotally-supported arm connected to said rocking plate and provided with a part cooperating with one of said cams, a clutch slidable on said shaft and 'adapted to connect said gear and means for operating said clutch, connecting with another of said cams. y

5. The combination with a shuttle and its complementary stitch-forming mechanism, of means for intermittently loperating said shuttle and comprising a driving-shaft having driving conection therewith, a gear having movement independent of said shaft, a plate pivoted for rocking movement and cooperating with said gear, a pivotally-supported arm having a pivotal connection with said rocking plate, a clutch adapted to connect said gear and said shaft, and cams operatively connected respectively with said pivotally-supported arm and said clutch.-

6. The combination with a shuttle and its complementary stitch-forming mechanism, of means for intermittently operating said 4shuttle and comprising a driving-shaft having driving conection therewith, a gear having movement independent of said shaft, a rocking segment cooperating with lsaid gear, means for reciprocating said segment including an arm plvotally supported at one end and having a link connectlon at its opposite end with said segment, anda cam operatively connected with said arm intermediate its ends, a clutch adapted to connect said gear and said shaft, and means for operating said clutch.

IOO

7 The combination with a shuttle and its complementary stitch-forming mechanism, of means for intermittently operating said shuttle and comprising a driving-shaft having driving connection therewith, a gear having movement independent of said shaft, a rocking plate coperating with said gear, a rock-shaft, means for reciprocatin said rocking plate including an arm pivotally su ported at one end to said rock-shaft, a linli connection yat the opposite end thereof With said rocking plate, a cam-diskhaving a cam coperating with said arm intermediate its ends, a clutch adapted to connectl said gear and said shaft, an auxiliary cam on. said disk, and an arm connecting respectively with said auxiliary cam and the clutch.

8. The combination with a shuttle and its complementary stitch-forming mechanism, of means for intermittently operating said shuttle and comprising a driving-shaft having driving connection therewith, a gear having movement independent of said shaft,

means for imparting movement to said gear,

the said gear having a plurality of apertures in one of itssides, a stationary support arranged opposite said gear having a plurality of pins projecting inwardly in line with said apertures, a clutch-sleeve slidably mounted upon said shaft said sleeve havingin its opposite sides apertures and pins complementary to the aforementioned apertures and pins, and means for imparting movement to said sleeve to engage and disenga e respectively the apertures 1n the gear an stationarily-supported pins including a cam-actuated pivoted arm.

9. The combination with a shuttle and its complementary stitch-forming mechanism, of means for intermittently operating said shuttle and comprising a driving-shaft having driving connection therewith, a gear having movement independent of said shaft, means for imparting movement to said gear including a cam, a plate pivoted for rocking movement and co erating therewith and a pivotally-supporte arm connected to said rocking plate and provided with a part coperating with said cam, the said gear having a plurality of apertures in one of its sides, a stationary support arranged opposite said gear having a plurality of pins projecting inwardly in line with said apertures, a clutchsleeve slidably mounted upon said shaft said sleeve having in its opposite sides apertures and pins complementary to the aforementioned apertures and pins, and means foriinparting movement to said sleeve to engage and disengage respectively the apertures 1n the gear and stationarily-supported pins, including a cam-actuated pivoted arm.

In testimony whereof we hereunto affix our signatures, in the presence of two witnesses, this 30th day of January, 1903.

GEORGE L. CORCORAN. GEORGE A.DOB YNE. Witnesses:

GALEs P. MOORE,` GEORGE BAKEWELL.

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