USRE10465E - Button-hole sewing-machine - Google Patents

Description

4 Sheets-Sheet 1.

F. W. GROSS.

BUTTON HOLE SEWING MACHINE.

No. 10,465: Reissued Apr. 8, 1884.

.Fi gJ mines-542s: r lnvehtor."

W Trunk WCross, by dwawwa 4 Sheets-Sheet 2.

F. W. GROSS.

BUTTON HOLE SEWING MACHINE. No. 10,465. Reissued Apr. 8, 1884.

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y F j I Inventor: Frank WC'rgss,

4 SheetsSheet 3. F. W. CROSS;

BUTTON HOLE SEWING MACHINE.

Fig.5 Fig.7

Fig. 8

mtnesses Inventor:

6.9V Frank W Cross} flttomey.

4 Sheets'-Sheet 4. P. W. CROSS.

BUTTON HOLE SEWING MACHINE. No. 10,465. Reissued Apr. 8, 1884.

Witnesses Inventor rdn toss; by

.dttorney.

UNITED STATES PATENT OFFICE.

FHA WK V. CROSS, OF LYNX, MASSAGHUbliTih.

BUTT ON-HQLE SEWING-MACHINE.

SPECIFICATION forming part of Reissued Letters Patent No. 10,465, dated Ap'rilfi, 1884. Original No. 279,349, dated June 12, 1883. Application for reissue tiled December 1, 1883.

Tolz'lZ whom it may concern.-

Be it-known that l, FRANK WV. Gnoss, of

- to be fed transversely of the machine-table and to be rotated abo'utthe needle; and my invention has for its objects a more accurate timing of the stopping of the machine at the end of the button-hole and simplifying the labor of the operatorby enabling her to start the ma chine with the foot, thus leaving the hands free to manipulate the work 5 and it consists in certain novel devices and combinations and arrangements of parts, which will be best understood by reference to the description of the drawings, and to the glaims to be hereinafter given.

-Figur e 1 of the drawings is a plan of machine embodying my invention,the bench upon which the sewing-machine is supposed to be mounted, and beneath which the counter-shaft is placed, being omitted for the purpose of the better showing the several parts of the invention. FigI2 is a vertical transverse section on line a: a: on Fig. 1. Fig. 8 is a rear side elevation of the sewing machine without the counter-shaft. Fig. 4. is a front side elevation.

. Fig. 5 is a partial section on line y g on Fig.1.

Fig. 6 is a partial section on line z on Fig.1.

, Fig. 7 is a sectional plan'otlthe brake-shoe and its stand. Fig. 8 is an elevation of the inner end of the push-pin for releasing the brake-retracting lever. Fig. 9 is an elevation of the devices for automatically stopping. the machine when the thread breaks, drawn to an enlarged scale. Fig. 10 is an elevation of the shipper-lever, and Fig. 11 is a'plan" of push-pin for releasing the brake-retracting lever.

A is the bed or main table, B the goose-neck, G the removablework-plate, and D the workclamping plate, of 2. Singer button-hole sew:

ing-machine. The table A is pivotedto the- DlVlSlON A.

stands E and E, which are firmly secured in the appropriate positions upon the bench F.

G is the countershaft, mounted in bearings in the stands H, secured to the floor of the building beneath the bench F, and to the rear of the back edge of the table A, as shown in Figs. 1 and 2. The shaft G has firmly secured thereon the disk I, and in near proximity thereto is mounted the grooved loose pulley 1,'provided with a circumferential groove, a, in its hub, with which the forked end of the elbow shipper-lever J engages, as shown.

Between the pulley I and disk I is placed 6 l a disk of leather, Z), to serve as a friction-pad, whereby the pulley I may be made to revolve with the shaft G when pressed hard toward the disk'I by the actionof the shipper-lever J. Motion is imparted to the shaft G by means of the pulley K and a suitable belt (not shown) leading therefrom vto a main shaft or other prime mover. I

L is a treadle-lever pivoted at cm the stand L, and connected at its rear end to the hori ,zontal arm of the shipper-lever J, and having its front end in a convenient positionto be acted upon byv the o1: irators foot while sitting at the machine and manipulating the work to be acted upon with his or her hands.

M is a brake-shoe, shaped to fit the side of the rim of the fly-wheel N, and mounted by its horizontal shank M in the stand M secured to the'back side'of the goose-neck B, and pressed into contact with the wheel N by 8 .the spring (I, the tension of which maybe regulated by means of the shown in Fig. 7.

O is an elbow-lever, pivoted at c to the back set-screw d, as

edge of the table A, with its short arm pro- 0 jecting upward in a'position to bear against the side of the pin f, 'set in the side of the shank of the brake-shoe'M, {and projecting through the slot 9, formed in the stand M all as shown in Fig. 3. The lever O is made pref 5 length, the connecting-rod P, the lower end of xoo which is connected to the treadle-lever 'L, as

shown in Fig. 2. e I

Qis a catch, with which the upper edge of the long arm of the later 0 engages when" do" i was pressed to remove the brake-shoe from con-. sure to be thrown out of ti-mewiththe needle, :ta'ct with the wheel N, said catch being secured and in case of variations in speed; which were to the rear edge of the table ,A, as shownin i very liable to occur, variations in the stop; 7 Figs.- 1 3, and 6. ping of the machine'would be the result, the '70 *5 ,Afihin bar, h, is fitted to a groove formed in machine. often coming to a standstill while the under side of the rearportion of the work-: the needle-wasin the work',wliile it was makplate, in aposition to be struck by,t-hepin t of I ing i -ts downward stroke, or while it was mak 1 'the work -hold ing clampplate D as it ,is' ing irs upward stroke, after-having descended I moved. toward the rear of the-table. after the through the slit of the button-hole, either of 75 :0 eye of the button-hole has beenworked. The which positions were objectionable for the reabar h hasseeured to its rear end the'block h, son that the operatorhad to movethe'fiy-wheel inwhich'is adjustably. secured the screw-pin against the pressure of the brake to bring the hf,..in aposition to-cofne in contact with the le-, needle-into proper position for commencing ver 0 and push it frbmgbeneath the catch Q, the work'again at the'desired point, the proper 8o when it ismoved toward the'rear b the action position forsaid needle'to stop being when it j of i said pin 4;; The block h is spl from the had risen some littledi'stance above the work, threaded hole whichreceives the screw pin hi after having descended through the same and to one side, and isprovided with the clamp-; not through the button-hole. a *ing'screw h, as shown in Figs. 1, ,5, and 8. To insure the stopping of the machine uni- 85 The operation of so'much of my'improveformly at the same point in the movement of ments as has been described is as follows: the needle,-I apply to the brake-shoe,directly When the-work has been properly placed-in or or indirectly, a locking-bolt so arrangedas theworkvclamp and the clamp properly adto lock said brake-shoe away from the flyjus'ted relative to the needle, the operator wheel N, and to be acted upon to release said 0 places the toe of the-foot upon thetreadle-lebrake-shoe bya cam arranged to makea comver Lv and depresses it, which causes the pin: plete revolution about its axis of motion and j. leyl' to be forced into contact with the friccome in contact with said bolt once'to two tional surface of the leather-disk b, which in complete strokes or double reciprocations of turn is forced into contact with the disk, I, the needle. 363 thus causing the pulley I to revolve with the In the machine illustrated in the drawings, shaftGr. Thedownward motion of the treadle- Bis the locking-bolt, having its bearings in lever L, acting throughtherod 1?, causes the the ear j of the stand M -and on the screw lever tobe moved about its pivot e and its k, set in the goose-neck B, said bolt being pro- I g a ep ss S0 S t engage with videdwith the downwardly-projecting arm R,

5..-t.h i-, h -Q,w'h1ch movementiof the leverO in front of the shaftfof the lily-wheel N, is "0911188? m Q M i -z 'veif cm shown in Fig. 9.. Therear end of the boltR I c ct h r 9 fi l nd com; is so arranged relative to the vertical arm of lpress fthe spring (2 111 n fl vi ni mapner; .the'leverO that when the long. arm of said 1e- Thes'emovements take plaeesimultaneously, ver is depressedby the. treadle, so as to en- Ic5 0 and the sewing commences and continuesj till gage with the catchQ, ahdth brake-shoe has the'pin i moved the-bar h and pin h to the been removed from contact with the fly-wheel, rear sufficiently far to dlsengage the lever-.0 .saidbolt will be mov'edbackward by the spring i r m t catch Q; when the re on, of the' i an its rear end ifs-interposed in the-vibraspr ng d causes the brake-shoe .M 0 eng ge; k-izory path of the short arm. of said lever 0, so r 10 5 with the rimef the wheel N, 'andi-at the same; as to 'preventthebrahe-shoefrombeiug moved m? y mlsmg 6- 312 arm 9 13118 Y -139,3 Q iiito cbntaetwith thelly-wheehwhen thelevcr the rod P and treadlhlhvel' h t 131115 is released from.the catch Q, until the bolt icy 0 be h -Y f r m confactwith" the Etis withdrawn 55mm the path of the-lever 0.

disk I and the motion of the machineito be S is a ring or collar, adjustably secured to r15 50 stopped; a z. a Y a 3 thehuh of the flyr-wheel or its shaft by the set The advantage of thlsmechanism isthat the screw Z, and carrying the arm "or pin we, prooperator does not'ha ve to use her hands to jecting therefrom parallel to the axis of revostart the machine, as is the case with the ma lution of the fly-wheel, and adapted to strike chines now in common use. It has been found the arm R of the bolt R at each revolution of 55 in practice, however, that while the stop-mo-- the wheel N and move said bolt toward the tions nowin general use are a great lmprovefront of the machine a suflicient distance to ment upon the old ,way of depending upon the remove its rear end from the path of the vers'klll of the operator to stop the machine at tical arin of the lever 0, said collar and pin the desired time, they could not be relied upbeing in'eifect a cam for moving the boltR R.

6o on to stop the machine always at the right The ring or collarS and its arm o'r-pinm may time In the movement of the needle-bar and be so adjusted as to accurately time the moveat the same st1tch-as, for lnstance, if stitches ment of the-bolt B so as to stop the machine were sk pped or thethread or needlebroke, newhen the needle has just left the work on its cessitatlngthe setting of the needle anew or the upward stroke, as before described. I 30 65 recommencing of the work at the point where In some machines the fly or driving wheel the break was made, thefeed-wheei was pretty N is mounted directly upon the needle-baroperating shaft,in which case, in order to apply my improvement, the collar- S and its pin m would of necessity have to be applied to a difl'erentshaft from that on'which the flywheel is mounted, as said collar and pin should being a division of this case, areshown, de-

scribed, and claimed certain devices for stopping the machine'when the thread breaks,

. which devices are illustrated in the drawings in this case; but I do not claim any of said devices in this application that are claimed in said other application.

I am aware that stop-motions have been applied to button-hole sewing-machines, and op erated by the work-clamp, and therefore I do not claim, broadly, a stop-1notion operated by the worloclamping device; but

What I claim as new, and desire to secure by Letters Patent of the United States, is

1. In combination with a button-hole sew; ing-machine provided with a vertically-re ciprocating needle arranged to descend alternatelylthrough the material and through the slit of the button-hole, a fly-wheel, a brakeshoe arranged to engage with said fly-wheel, and to be pressed thereon by a spring, and to be retracted therefrom by the operator, means for automatically locking said brake in said retracted position, and mechanism arranged to operate independently of the movements of the clamping device and automatically release said brake, and adapted to be adjusted to stopthe machine at any predetermined point in the movement of the needle, substantially-as and for the purposes described.

2. In combination with a bntton-ho1e sewing-machinc provided with a work-clamping device, the spring-pressed brake-shoe M, the elbow-leverO, the catch Q, the push-pin h h",

the counter-shaft G, provided with tight and loose pulleys, the shipper J, and the treadlelever I? connected by the rod 1? to thelever O, anda-rranged and adapted to be depressed by the foot and thereby retract the brake-shoe and lock it, substantially as described.

3. In combination with a button-hole sewing-machine provided with a work-clamping device, the brakeshoe M, the elbow-lever O,

the catch Q, the push-pin hJr, the pm i, the

locking-bolt RR, and an-adjustable camarranged and adapted to be revolved about its axis and to retract the locking-bolt R R once to every two revolutions of the needle-open ating shaft of the machine, substantially as described, for the purposes specified. p

4. In a button-hole sewing-machine prowith an automatic stop mechanism, the combination of the vertically-vibrating elbow-lever 0, the catch Q, the extensible push-pin h h fitted to slide in a groove in the under side of the work-plate G, and the pin 1' of the work-clamping device D, as a means of operating the stop mechanism, substantially as described.

Executed at Boston, Massachusetts, this 21st" day of November, A. D. 1883.

. FRANK \V. CROSS, In presence of N. G. LOMBARD, IVALT-ER E. LOMBARD.

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