US1235836A - Button-sewing machine. - Google Patents

Description

D. NOBLE.

BUTTON SEWING MACHINE. APPLICATION FILED JULY 30.1914.

Patented A110". 7, 1917.

4 SHEETSSHEET I.

WITNESSES:

A TTORNE Y D. NOBLE.

BUTTON SEWING MACHINE.

APPLICATION FILED IULY 30,1914.

III/Ill? 4 Patented Aug. 7,1917.

- 4 SHEETSSHEET 2.

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A TTORNE Y NOBLE BUTTON SEWING MACHINE. APPLICATION FILED JULY 30.1914.

Patented Aug. 7, 1917.

4 SHEETS-SHEET 3.

W J I A TTOR/VEY D. NOBLE.. BUTTQN SEWING MACHINE. APPLICATION FILED JULY 30, I914.

Patented Aug. 7, 1917.

9 9 SHEET s E T 4 A TTOR/VE Y DONALD NOBLE, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE SINGER MANU- FACTURING COMPANY, A CORPORATION OF NEW JERSEY.

BUTTON-SEWING MACHINE.

Specification of Letters Patent.

Patented Aug. 7, 1917.

Application filed July 30, 1914. Serial No. 854,011.

To all whom it may concern:

Be it known that I, DONALD NOBLE, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Button-Sewing Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to improvements in button sewing machines and has for its primary object to provide a simple, durable and compact construction designed more particularly for use in connection with the retail shoe trade, and to this end there is provided an oscillating cylinder carrying the stitchforming elements and controlled to effect superposed zigzag stitches, and if desired place tying stitches at the commencement and at the completion of the cycle of stitch formation, which latter is controlled by a suitable stop motion mechanism, preferably as herein shown, which comprises the subjcct matter of my United States patent application Serial No. 854,012, filed July 30, 1914.

Referring to the drawings, Figures 1 and 2 are front and rear end elevations respectively, of the present construction of sewing machine including thestop-motion mechanism. Figs. 3 and 4 right and left hand elevations of Fig. 1 respectively, Fig. 4 being shown partially in section to better expose certain parts later to be referred to. Fig. 5a plan of Fig. 1 showing the throatplate detached from the machine. Figs. 6 and 7 cross sections on lines AA and B-B, respectively of Fig. 4. Fig. 8 a central cross section on the line CC, Fig. 2. Fig. 9 a cross section on the line D-D, Fig. 4. Fig. 10, detail views of the elements comprising the button clamp. Fig. 11 a view illustrating the relative arrangement of the button clamp, throat-plate, button and material at the commencement of the stitching operation. Fig. 12 a plan view of certain of the elements of the auxiliary brake-shoe actuating mechanism. later to be referred to.

Referring to the figures 1 represents the sewing machine frame; 2 its base; 3 the main or needle-bar actuating shaft surrounded by a hub 011 which is mounted the belt or hand wheel 4 to rotate with or independently of said shaft; 5 the needle thread take-up mounted to vibrate on the pivot screw 6 and actuated by the grooved cam 7 carried by the main-shaft 3; 8, 9, 10 and 11 denote thread leaders; 12'thread tension; 13 thread con troller spring and 14 the tension releasing arm comprising an extension of the rock shaft 15 secured by screws, as 16, in the lug 17 of the button-clamp rock-arm 18 provided with the button clamp 19, the rock-shaft 15 being loosely mounted in suitable bearings formed in the lugs, as 20, of the frame cap 21 secured by screws, as 22, 1 only of which is shown) to the frame 1, thus causing the arm 14 to be rocked by the movements of the rock-arm 18.

23 represents the loop-taker provided with the thread-bobbin 24 and carried by the loop-taker shaft 25, which latter has suitably secured upon it a spirally grooved gear member 26 tracked by a hollow gear member 27 forming a part of a cross-head 28 whose oppositely arranged member 29 is suitably secured to the needle-bar 30, the latter mounted to reciprocate in suitable bearings carried by the oscillating frame 31, the upper end of said needle-bar being provided with a needle carrying bracket 32 into the free end of which is suitably secured the needle 33. The oscillating frame 31 is carried by shaft 34 mounted in a bearing sleeve 35 suitably secured in the frame 1 and held against endwise movement by a suitably secured collar 36, the cross-head 28 being actuated from the main-shaft 3 through the shaft flange 37, wristpin 38 and two part crank connection 39, thus transmitting oscillatory movements to the loop-taker 23 and reciprocating movements to the needle-bar 30. 4O denotes the throat or needle-plate.

41 represents the oscillating frame shaft (see Fig. 4) mounted at its forward end in a bearing 42 formed in the frame 1 and at its opposite end in a bearing 43 formed in a lug 44 of the base 2, said shaft carrying at its forward end a flange 45 provided with an inclined groove 46 terminating in an open ing 47 (see Fig. 9), its opposite end being provided with an eccentric 48 secured by screw 49. 50 denotes a gear-member mountedon the shaft41 and held to turn the latter by screw 51 threaded into theeccentric 48, said geanmember meshing with a gearmember carried by the cam 7, the gearmembers 50 and 52 being of the ratio of two to one, thus giving to the shaft 41 one rotation to two rotations of the shaft 3.

53 represents a clutch operating shaft having a reduced portion 5st upon which is secured by screw 55 a flange 56 provided with a pin 57 and upon the outer end of said reduced portion is mounted a triangular cam 58 secured to turn with the shaft by screw 59 threaded into said flange. 60 denotes a spring mounted on the reduced portion 5a and held confined between the suitably secured collar 61 and the inner end wall 62 of the shaft 4C1, said spring acting to normally hold the pin 57 into engagement with the opening 47 of the flange 45. 63 denotes a bracket secured by screws, as 6 1, to the base 2 and provided with a circular opening 65 into the wall of which is formed a notch 66 for the reception of the head of screw 55 when the flange 56 is in its outward or position of rest, as shown in Fig. 4, thus locking the shaft 53 against accidental axial move ment, the notch 67 in the wall of the opening 65 acting to receive the screw 55 when, through any fault, the driving mechanism is operated in the wrong direction for a cycle of stitch formation.

68 represents a ratchet disk mounted to turn on the main-shaft bushing 69 in a di-' rection opposite to the direction of rotation of the main-shaft, and to said disk is suitably secured a cam-disk 7 0 carrying a cambracket 71 provided with an incline 71 and cam-lug 72, the latter forming a part of the stop motion mechanism, later to be referred to. 73 denotes an eccentric strap ac tuated by the eccentric &8 and operatively connected by pivot stud 7 4 with the ratchetlever 75 journaled on the hub 76 of the disk 68 and provided at its free end with a spring controlled ratchet-pawl 77, a spring controlled retaining pawl 7 8 mounted on a stud 79 secured in the frame 1 acting to hold the disk 68 against accidental reverse rotation.

Referring more particularly to Figs. 2 and 8, 80 represents a button clamp operating rod provided at its lower end with a step 81 and mounted to move vertically in a tubular bracket 82 threaded into a lug 83 of the frame 1, said rod being surrounded by a spring 84E confined between the inner wall 85 of said bracket and a shoulder 86 formed on said rod, said spring comprising a part of the stop motion mechanism, later to be referred to. 87 denotes a spring controlled sleeve mounted to move with and independent of the rod 80, which latter carries a pin 88 and washer 89 between which latter and the wall 90 of the sleeve 87 is confined a spring 91 which acts, through connections later to be described, to resiliently hold the clamp 19 down upon the material when the rod 80 is moved upward, as when starting the machine.

92 represents a rock-arm the member 93 of which is provided with an opening 9 1 through which loosely passes the rod 80, the member 95 of said rock-arm entering an opening 96 in the rear end of the rock-arm 18, thus operatively connecting the latter with the rod 80. 97 denotes a washer loosely mounted on the rod 80 and located between the member 93 of the rock-arm 92 and an adjusting nut 98 for determining the relative adjustment of the clamp 19 and throatplate 40, the nut 99 acting to lock the nut 98 against accidental movement.

The button holding clamp comprises a main-frame 100 provided with a rib 101 which enters a groove 102- in the front end of the rock-arm 18 and secured by screw bolt 103 and nut 10%, the base portion 105 of said clamp extending back under the free end of the rock-arm, the front or button holding portion of said base being provided with a needle opening 106 and at its under side cut away to accommodate the latch 107 pivotally secured by screw 108 and yieldingly held in engagement with the buttoneye by spring 109. 110 denotes a needlethread cutting and holding blade secured to the rock-arm 18 by the bolt 103 and nut 104:, the thread 111 being passed from the needleeye, out and held as shown in Fig. a.

Upon the extended portion 112 of the throat-plate 10 is secured by screw 113 an under thread cutting and thread holding blade 114, the thread 115 leading from the bobbin 24tthrough its needle-opening 116 and beneath the cutting blade as shown in Fig. 5, the throat-plate being held in position on the flanges, as 117, of the plate 21 by the beveled edges, as 118, underlying the like beveled edges, as 119, carried by the latter plate, and further secured by the pins, as 120, entering the openings, as 121, in said throat-plate, the surface 122 being depressed to accommodate the lowering of the button down upon the material. 123 denotes a cover plate on which is mounted the thread leaders 8, 9, 10, thread tension 12, thread controller-spring -3 and secured to the frame 1 by thumb-screw 124.

Referring now to the means (stop motion mechanism) for controlling the cycle of stitch formation, the band-wheel 4: at its inner side is hollowed out as shown at 125, Fig. d and into the inner portion of its rim is secured by screws, as 126, a leather ring 127, and at one side of the latter is loosely mounted a disk 128 normally held in gripping relationship with said leather by screws, as 129, passing loosely through the gripping disk 130 and resiliently held in contact with the leather by springs as 131 confined between the walls, as 132, and be neath the heads .of the'screws 129, said springs being represented by a single cross section, Fig. 41, the disk 130 being secured to the main-shaft 8 by screwaas 133, (shown in dotted lines only, Fig. 7). 134; denotes suitable bearings, as 154.

a compression ring loosely mounted on the inner hub 135 of the disk 130 and provided with a multiple of compression pins as 136 (one only being shown, Fig. 4) and having a beveled periphery 137. A second disk 138 provided with a beveled periphery 139 is secured to the hub 135 by screws, as 140, the outer hub 141 of the disk 130 acting as a bearing for the bandwheel 4.

142 represents a brake-shoe rock-shaft mounted in suitable bearings formed in the frame 1 and carrying at one end a sleeve 143 provided with oppositely arranged lugs, as 144, which have pivotally connected to them links, as 145. The opposite ends of the links 145 are pivotally connected to brake-levers, as 146, whose lower ends are pivoted upon suitable studs, as 147, secured in the franie 1, said levers being provided with brake-shoes, as 148, carried by stud screws, as 149, threaded into bosses, as 150, formed integral. with said levers, said studscrews being secured against accidental movement by nuts, as 151. I

152 represents a brake actuating lever formed integral with the sleeve 143 which, when moved upward by an element later to be referred to, acts to move the brakeshoes clear of the beveled surfaces 137 and 139 of the disks 134 and 138, respectively, as when effecting the stitching operation.

152 represents a treadle-rod whose lower end, in practice, is attached to a suitable foot-treadle (not shown) and on said rod is suitably secured an arm or lug 153, said rod being guided in its vertical movements by The upward movement of the rod 152 causes the lug 153 to raise the lever 152 and rock the shaft 142, thus releasing the brake-shoes 148 from engagement with the beveled surfaces 137 and 139, th lever 152 when elevated rests on the shoulder 1560f the catch lever 157 pivoted upon studscrew 158 threaded into the frame 1, said catch lever being yield ingly held in engagement with the lever 152 by the spring controlled plunger 159 mounted in the frame 1.

To better adapt the previously described stop-motion mechanism to extreme variations in speed there is employed an auxiliary brake-shoe actuating mechanism comprising the sleeve 160 loosely mounted on the brakeshoe rock-shaft 142 and provided with integrally formed arms 161 and 162, the arm 1.61 carrying at its outer end a link 163 slidably connected by screw 164 with the lug 153 carried by the treadle-rod 152. 165 denotes a crank arm formed integral with the shaft 142 and to its lower end is pivotally attached by screw 166 a brake-pawl 167 provided with a stop wall 168 and finger 169, which latter during the stitching operation rests upon the pin 170 secured in the frame, and when not so positioned occupies the position shown in Fig. 1 with its wall 168 in engagement with the wall 171 of the shaft flange 37. 172 denotes a link pivotally attached at one end to the brake-pawl 167 and at its opposite end to the arm 162 carried by the sleeve 160, said link acting to lift the pawl 167 out of engagement with the flange 37 when starting the machine. 173 denotes a buttonholding wire secured in the cap 21 by screw 174 and 175 represents an irregularly formed circular spring ring located between the disks 134 and 138 to keep them from contacting, each with the other, when not acted on by the brakeshoes 148.

The sequence of movements of the actuat ing mechanism as previously pointed out are as follows: Supposing the machine to be at rest as illustrated more particularly in Figs. 1 to 5 inclusive with the lug 72 of the disk 70 slightly past the lower end of the catch-lever 157, the end of the clutch opera-ting shaft 53 in central engagement with the cam-bracket 71, the brake-shoes 148 in engagement with th beveled surfaces 137 and 139, the pawl 167 in engagement with the flange 37, the pin 57 of the flange 56 out of engagement with the opening 47 of the flange 45, the button clamp 19 raised with a button in position to be stitched to the material, and the tension release lever14 in engagement with the tension mechanism 12 to release the tension on the needle-thread, which is the relative position of the several parts when starting the stitching operation.

An upward movement of the treadle-rod causes the lug 153 to contact with the levers 152 and 161, and in their upward movements the lever 152 first contacts the step 81 which causes the clamp operating rod 80 to close the clamp 19 down upon the material, the tension releasing arm 14 to be withdrawn from the tension mechanism 12 and at the same time rock the shaft 142, which causes the brake-shoes 148 to release the disks 134 and 138 and permit the springs 131 to force the disk 128 in driving contact with the leather-ring 127, the lever 152 in the meantime being positioned on the shoulder 156 of the catch-lever 157 where it remains during the cycle of stitchformation. The rocking upward of the lever 161 effects through the connections 160, 162, 165 and 172 a rocking and lateral movement of the brake-pawl 167 which causes its finger 169 to be positioned upon the pin 170, where it remains during the cycle of stitchformation.

The machine having been set in motion as just described, the pin 57 is held out of ngagement with the opening 47 in the disk until the cam-bracket 71 passes the end of the shaft 53, during which time tying stitches are being placed, and after the cam bracket passes out of engagement with the end of the shaft 53 the spring 60 acts to couple the disks 15 and. 56, thus effecting, through the triangular cam 58, oscillatory movements of the frame 31, and in the further cycle of stitch formation the cam portion 71 of th cam-bracket 71 is brought into engagement with the end of the shaft 53, thus effecting tying stitches at the completion of the cycle of stitch-formation, and after the cam bracket has passed the shaft 53 for substantially half its length, the lug 72 carried by the disk 138 contacts the lower end of the catch-lever 157 and withdraws the shoulder 156 from engagement with the lever 152, thus permitting the parts to take their positions of rest followed by the neXt subsequent cycle of stitch-formation.

The function of the auxiliary stop mechanism, as will be readily understood, is to cause the momentum of the parts to assist the spring 84: in applying the brake-1nembers 148 to the beveled surfaces 137 and 139.

Having thus set forth the nature of the invention, what I claim herein is 1. In a sewing machine, a stitch-forming mechanism for effecting zigzag and tying stitches including a throat plate, a needle carrying bar, a loop-taker and an oscillating frame arranged below said throat-plate and in which are mounted below the latter said needle carrying bar and loop-taker, and means including a cam member for giving to said frame its oscillatory movement.

2. In a sewing machine, a stitch-forming mechanism for effecting zigzag and tying stitches including a throat-plate, a needle carrying bar, a loop-taker and an oscillating frame arranged below said throat-plate and in which are mounted below the latter said needle carrying bar and loop-taker, and means including a cam member for changing the character of the stitches during a single cycle of operation.

3. In a button sewing machine, a clamp for holding the button being acted on against movement during the stitching operation, a frame-base upon which is mounted a vertically arranged frame provided with a throat-plate and having pivotally attached to it a vertically arranged oscillating frame arranged belou said throat-plate in which are mounted below the latter a needle carrying bar and a loop-taker, and means including a cam member forgiving to said frame its oscillatory movements.

4. In a sewing machine for effecting superposed zigzag and tying stitches, a stitchforming mechanism including a throat-plate, a needle, a needle carrying bar, a loop-taker, and an oscillating frame arranged below said throat-plate and in which are mounted below the latter said needle carrying bar and loop-taker, and means for giving to said needle carrying bar and loop-taker stitchforming movements and means including a cam member for effecting and suspending the oscillatory movements of said oscillating frame during a single cycle of stitch-formation. a

5. In a. button sewing machine, a clamp for holding the button being acted 011 against movement during the stitching operation, a stitch-forming mechanism including a throat-plate, a' needle, a needle carrying bar, a loop-taker, and an oscillating frame arranged below said throat-plate and in which are mounted below the latter, said needle carrying bar and loop-taker, and means including a cam member for giving to said frame its oscillatory movements, means including a crank connection for giving to said needle carrying bar and loop-taker stitch-forming movements and means for automatically determining the cycle of stitch-formation, 6. In a sewinginachine for effecting super posed zigzag stitches, a stitch-forming mech anism including a throat-plate, a needle, a needle carrying bar, a loop-taker, and an oscillating frame in which said needle carrying bar and loop-taker are mounted'an-d con trolled to superpose the zigzag stitches, and means for giving to said needle-carrying bar and loop-taker stitch-forming movements and means including an intermittently actuated cam for efiecting and suspending the oscillatory movements of said oscillating frame during a single cycle of stitch-formatipn.

7. In a sewing machine for effecting zigzag stitches, a frame base upon which is mounted a vertically arranged frame pro- 1 vided with a throat-plate and having pivotally attached to said frame a vertically arranged oscillating frame arranged below said throat plate and in which are mounted below the latter a needle carrying bar and a loop-taker, means including a cam member acting on said oscillating frame to superpose the zigzag stitches, of a button holding clamp automatically controlled to raise the materialsbeing acted on off said throatplate at the completion of the cycle of stitchformation.

8. In a button sewing machine, the c0mbination with a stitch-forming mechanism including a main-shaft, a throat-plate, a cam member, a needle, a needle carrying bar, a loop-taker, and an oscillating frame arranged below said throat-plate in which are mounted below the latter said needle carrying bar and loop-taker and a clamp for holding the button being acted on against movement during the stitching operation, of a cam-shaft driven from said main-shaft and operatively connected by said cam-member with said oscillating frame for giving to the latter oscillatory movements.

9. In a button sewing machine, the combination with a stitch-forming mechanism including a throat-plate, a needle, a needle carrying bar, a needle thread tension, a tension releasing element, a loop-taker, and an oscillating frame, the latter arranged below said throat-plate and in which are mounted below the latter said needle carrying bar and loop-taker, means including a cam memher for giving to said frame its oscillatory movement, and means for actuating said stitch-forming elements, of a rock-arm provided with a button holding clamp, the movements of said rock-arm in one direction acting on said releasing element to release the tension on the needle thread and its re turn movement acting to restore said thread tension.

10. In a button sewing machine, the combination with a stitch-forming mechanism including a throatplate, a needle, a needle carrying bar, a loop-taker, and an oscillating frame arranged below said throat-plate and in which are mounted below the latter said needle carrying bar and loop-taker and a triangular cam through which said frame is controlled to effect zigzag stitches intermediate separate series of tying stitches during a single cycle of stitch formation, of a button clamp carrying arm mounted on a stationary part of the sewing machine for presenting a button to the action of said stitch-forming mechanism.

11. In a sewing machine, a stitch-forming mechanism for effecting zigzag stitches including a throat-plate, a needle carrying bar, a loop-taker, a cam member and an oscillating frame arranged below said throatplate and in which are mounted below the latter said needle carrying bar and looptaker, said cam member acting to give to said frame its oscillatory movements.

In testimony whereof, I have signed my name to this specification, in the presence or two subscribing witnesses.

DONALD NOBLE.

Witnesses:

FRANK M. WVooT'roN, E. II. Woons.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

It is hereby certified that in Letters Patent No. 1,235,836, granted August 7 1917, upon the application of Donald Noble, of Bridgeport, Connecticut, for an improvement in Button-Sewing Machines, an error appears in the printed specification requiring correction as follows: Page 4, line 26, claim 1, strike out the Words and tying; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 9th day of October, A. D., 1917.

[SEAL] F. W. H. CLAY,

Acting Commissioner of Patents. Cl. 112-32.

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