US36932A - Improvement in sewing-machines - Google Patents

Improvement in sewing-machines Download PDF

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US36932A
US36932A US36932DA US36932A US 36932 A US36932 A US 36932A US 36932D A US36932D A US 36932DA US 36932 A US36932 A US 36932A
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needle
disk
frame
plate
thread
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    • DTEXTILES; PAPER
    • D05SEWING; EMBROIDERING; TUFTING
    • D05BSEWING
    • D05B3/00Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing
    • D05B3/06Sewing apparatus or machines with mechanism for lateral movement of the needle or the work or both for making ornamental pattern seams, for sewing buttonholes, for reinforcing openings, or for fastening articles, e.g. buttons, by sewing for sewing buttonholes

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  • FIG. 3 represents a plan or view'of the bottom of the machine inverted, a portion of the frame being broken away at the line 0 o.of 1 ig.-4, to show the mechanism more clearly.
  • Fig. 4 represents a vertical longitudinal section through thesame at the liuea," m of Fig. 3. The two latter fig ores are on a larger scale than the others. Fig.
  • Fig. 6 represents a vertical axial section through one of the spool-carriers at the line 2 z of Fig. 7.
  • Fig. 7 represents a horizontal transverse section through the same, looking upward at the line 31 Fig. 6.
  • Fig. 8 represents a viewin perspective oi the needle and finger, showing their relative position at the commencement of the operation of forming a stitch.
  • Fig. J represents a similar vicw'ot' the same, showing their relative position at the moment when the vertical needle has pierced the cloth and is about to commence its upward movement.
  • Fig. 6 represents a vertical axial section through one of the spool-carriers at the line 2 z of Fig. 7.
  • Fig. 7 represents a horizontal transverse section through the same, looking upward at the line 31 Fig. 6.
  • Fig. 8 represents a viewin perspective oi the needle and finger, showing their relative position at the commencement of the operation of forming a stitch.
  • Fig. J represents a
  • FIG. 10 represents a view in perspective of a piece of cloth with the stitches loosely formed therein, inordcr to show more clearly the method of torming the stitch 5 and
  • Fig. 11 represents a wieW of a piece of cloth with a button-hole worked therein.
  • our invention though -gcu'erallyadaptable to. most descriptions of sewing-machines, yet relates more especially to those machines which areemployedin' uniting or stitching together the edges of a fabric, and has for its object the production of a machine which shall be capable of working a'button-hole or other similar article in a practically successful manner by automatic means, to which end our improvements consist, first, in forming a button-hole or overcast-stitch by means of an eye-pointed needle, which works up from below and pierces the fabric, in combination with'a finger or thread carrier, also working up from below the fabric, substantially in the manner hereinafter described secondly, in mounting the entire stitching mechanism upon a dislior independent frame, capable of being rotated automatically at proper intervals without interfering with the operation of stitching,in order to sew around curves,such as the eyes of button-holes; thirdly, in combining a bed-plate to which the fabric is attached, having a periodical intermittent progressive movement in 'a rectilinear
  • a strong rigid frame to contain the mechanism.
  • this frame we mount a sliding frame which traverses back and forth in a rectilinear path, and carries a bed-plate or table upon which the material to be sown rests, as well as a presser-lever to hold the material down upon the bed-plate.
  • a driving-shaft works in suitable hearings in the frame and actuates the driving mechanism.
  • the bed-plate and movable frame derive their movements from this shalt.
  • a bracket secured to the n'iovable frame carries a nut traversing on a screw arranged horizontally and longitudinally beneath the table and turning in hearings in the frame.
  • a An iutermittent rotating movement is periodically imparted to the screw by means of a bevel-pinion on one of its ends.
  • This screw gears alternately and at intervals into two bevel-Wheels, secured upon the same collar. (one uponeach side of the pinion,) which collar slides freely endwise upon the driving-shaft.
  • the bevel- Wheels have teeth upon one half only of their faces and are at such a distance apart that either or both of them may be' disengaged at once, so that the screw may turn in either directiou, or be at rest, as required.
  • a hearing is formed .in the center of the stand or frame, upon which a disk is supported and turned.
  • This disk for convenience of construction, we prefer to form in two sections, one resting upon the other, and both securely fastened together.
  • the lower section of the disk carries the actuating mechanism, while the stitching mechanism proper is carried by the upper section.
  • the center of this disk is hollow and forms a tube through which a needle bar, arm, or mandrel reciprocates in thedirection of its length.
  • the mandrel is driven by an eccentric and pitman from the drivingshaft.
  • the disk turns freely in its bearings in a horizontal plane. It is actuated by a pusher driven by a swivel eccentric on the driving-shaft.
  • the pusher is pivoted to a ratchet-wheel, which turns loosely upon the disk during the forward stroke of thepusher; but when the movement is reversed a springpawl upon the disk engages the teeth of the ratchet, thus causing the disk to rotate.
  • the spring-pawl is held out of contact with the ratchet when the sliding frame is moving by means of a guide-bar upon the frame; but as soon as the pawl slips past the end of the bar 5 the disk begins to rotate.
  • One of these guidebars is placed at each end of the sliding frame. One is fixed, but the other is rendered adjustable, in order to vary the size of the hole worked. 1
  • a scale is marked upon the sliding table
  • an index attached to the movable guide-bar serves accurately to measure the hole to be worked.
  • the vibrating needle arm which plays through the center of the rotntingdisk. has on its upper end a needle carrier or shank, bent into a U shape, so that when a needle is inserted into the shank it shali be parallel to its stein.
  • This needle plays through a perforalliOll in astitching-plate and through the opening in the bed-plate and presser-foot hereinheore mentioned.
  • a perforated tension-post is also secured upon this stitching-plate to pre- ⁇ "ent the kinking of the needle-thread and its entanglement; with the lower-thread carrier.
  • a curved finger or threadcarrier is secured on the endot' an inclined shaft, which rocksiu open hearings on the rotary disk. This shall: is held in place by a plate-spring". and may readily be removed in order to insert a thread into theeyes ol'the carrier.
  • Thesis-aft is rocked by means of a hentarm, which playsin a groove on a sector-shaped earn pivoted upon the disk.
  • This cam derives its movements from the nee-- dIe-ruendrel, with which it is connected by means ot a limit.
  • the needle-arm is connected with its pitinan by a swiveling-joint, so thati't may turn freely on its axis.
  • Thearrangenient is such that while the'hnger or thread-carrier derives its rochinguioi'einent from. the needlemandrel the latter derives its turning inure- "nient from the carrier, so that their relative position remains unchanged at all times.
  • Spool-cases are inserted into holesin' the disk and held in place hy springs.
  • the cases are cup shaped, and have stems in their ho tonis upon which an ordinnr spool may he placed.
  • Einitahletension apparatus are also inonnted nplon the dish
  • Theacconnpanyingdrarvings represent a con-' renient arrangement oiparts for carrying out the object of our inrention. in this instance the mechanism is shown as supported by and inclosed in a strongl'raine, A, ot'cast-iron.
  • sliding iranicortahle, B rests upon this frame, and is provided with grooves h upon its under side, which traverseou pins or, projecting from the upper part, of the main frame A, shown in Fig. 3, thus enabling, the sliding 'i'ranie to traverse horizontally and longitudinally upon its supports.
  • A. hrd plateq'b is pivoted to oneiend of the sliding frame in such manner as to allow it a slight degree of lateral'play on its hinges c. -A. in, 1), upon the plate tits into a hole, or, upon the sliding frame, and thus holds it steadily when lowered upon the slidingiranie.
  • a horizontal driving-shaft, F is mounted upon suitable bearings upon one end of the main frainmheneath the table.
  • Asleeve, E" is mounted upon the shaft near one end there of, in such manner as to turn with the shaft, and yehbe capable of sliding freely thereon in the direction or its length.
  • This sleeve ries two bevel-w heels, 6 6 facing each other, nixed at an invariable distance apart, and having teeth on one-halfot' their peripheries only;
  • a herehpinion, c is mounted upon one end'hl' the rotating screiv E:
  • the bevel half-gears e e revolve one oneachsideof the pinion c, and their relative position is such that either inn ⁇ ; be in rear with the pinion, (but not both at once,) or both may be disengaged from it at the same time, when, of course, the screw andsliding table Wouiil heat rest.
  • an intermittent progressive increment either hacltrrard or torward, may he imparted to the sliding table B.
  • a hollow pillow or hearing-cylinder in the center of the frame a hollow pillow or hearing-cylinder, it, is erected, and forms the main hearing for the sewing mechanism proper.
  • This mechanism contained within a frame which,forconvenienceot'constructionaudother reasons, we prefer to make in the form of two dislrs, G G, arranged horizontally one above, the other, with an interval between them, but securely constructed and rotating; upon the main hearing A".
  • Both bl the disks are per 'i'orated vertically, so as to leave an opening through whicha needle-mandrel K plays.
  • the lower dish, G has a donaward-projecting rim or flange, g, which incloses a ratchet-wheel, H, turning freely upon the main hearing, and independently of the disk.
  • ratchet-wheel hy means ot a hat curved bar or hand, It, pivoted to its under sitlcby a screw, it.
  • a swiveling; eccentric, H, on the driving-shalt F imparts a reciprocating motion to the hand it by means of the pitmzin I1 pivoted at one end to the eccentric, and atthe other to the hand, as shown in Fig. 3.
  • the length of the stroke of the ratchet-wheel may be varied by inserting the pivot it into one or a series of holes in the ratchet-plate at varying distances from the center, or in some other suitable manner well known to mechanics.
  • a horizontal arm or bar, I is rigidly secured to the lowerdisk,G.
  • a spring-pawl, h is pivoted to the under side ot'ihis disk and lies below and parallel to the stop-bar L
  • Upon each end of the, sliding frame'B is a curved bracketor guide-bani 1
  • One of these 7 bars is rigidly secured to the frame; but the other slides in a horizontal groove under the slidiug'frame.
  • the arrangement is such that when the outer end of the spring-pawl bears against eitherone of the guide bars it is held out of contact with the ratchet whichthen plays ireely'back and forth withoutturning the disk but as soon asjhe end of the springpawl escapes froin'the guide-bar its other end engages the teeth of the ratchet-wheel and causes the disk to turn with aniutermittent rotating movement.
  • the movable guide l is adjusted by aset- ,screw. J, on the end of the sliding frame.
  • the needle-mandrel K is driven by means of an eccentric, K, on the driving-shaft, revolving in a yoke, K on an elbow-lever or pitman, K, turning on a pivot, K, on the frame.
  • the connection between the pitman and mandrel is formed by means of a swiveling ball-aud-soc ketjoinnK which permits the needle to rotate freely on its axis without impeding i'tslongitudinhl. vibrations.
  • a needle-bar, L, is 'mouuted upon the upper end of tl ie; nan'dr l. This bar is vertical, and
  • a curved finger o'r thread-carrier it, having. an eye near its point and another near its heel,
  • a quadrantshaped cam pivoted to the lower disk, G.
  • This cam is connected with the needle-arm K by a link, 0', and is operated by it.
  • the bearings of the rock-shaftN are so constructed that it can be lifted out of place at any time. It is held in place'whe'n at work by a spring, n pivoted onthe disk G and turning freely in a horizontal direction.
  • the spools are carried in spool-cases P P", I
  • the d isk is coi'npressed between plate-springs T,-the ends of which are secured to the frame A, and in this instance the screws a,which secure the plate springs T to theiframe, also form the pins on which the frame B slides.
  • the slidingl'rame,'as before remarked, is traversed backward and forward by means of two bevel half-gears, c" c which "act alternat-ely upon the bevel-pinion e on the end of the screwfand are alternately thrown into or out of gear in the following manner:
  • the collar E slides freely on the driving-shaft F, and is actuated by one-arm, u, ot' a forked lever, U, which enters a. groove, 6, on it.
  • This lever is curved, so as partially to encircle the wheel G, and extends entirely across the machine'aud turns upon a pivot, n on-the frame.
  • the other arm, a, of this lever is also curved andpartly encircles the disk G.
  • a cam-plane Upon one side Ofthedisk is a cam-plane, corresponding with the set-screw a on the short arm a, while on the oppositeside is a corresponding notch, g'i.
  • the cam-plane strikes against the screw u, and slides the gears eudwise on the shaft, throwing one into the other out of gear, or
  • the finger-thread is carried by ,the spool P. It passes through a slot in the spool and through a hole in the bottom ot the'tension-rod R, entering it in theceuter in order to perm'itthe rod" to be turned without eu ang ling the thread. Itthen passes partiallyaround the rod and through an opening, 7, in the disk G, audthrough the tension-spring S. Thence it passes through the eye in the heel of the bent finger, and along tlte inside of the finger to its point, and through the eye iii the point to the other side again.
  • the needle may be covered by a tube or thitnble, M, which prevents anything from catching in it, and also serves both as an additional means of holding the cloth down upon the stitching-plate and as a guide for the cord.
  • the tinger n can readily be removed in 'order' to thread it.
  • Rotary motion may he imparted to the driving-shaft F inany suitable manner.
  • the eccentric K acts upott its yoke K and vibrates the needle-arm Kthrough the pittuan K and rock-shaft K.
  • a semirotative'or rocking movement is imparted to the finger n by means of its bent arm n playing in the slot' 0 in the vibrating cam (),which is connected to and operated simultaneously with the needle-arm K by the link 0.
  • the stitch is formed in the following manner: As the straightneedle descendsitpasses through a loop oi; the finger-thread and then through the cloth, the loop of linger-thread being tightened at the same time by the backward and downward movement of the finger. After passing through the cloth the needle descends on the inner side of the linger (which is all the time retreating) until its point is about one-fourth ot'an'inch below the point of the finger to allow sutficient loopage. It then begins to ascend, the loop opening as it rises,
  • the rectilinear traversing movement is mparted to the bed-plate O and movable frame B in the following.manner:
  • the relative arrangctnent of the catn-plane on the disk G, and the pin '(6 on the forked lever U is such that the half bevel-gear e is held in contact with the pinion c on the end of the screw E which moves the frame, thus giving it an intermittent rectilinear forward movement.
  • the turning movement. of the sewing apparatus is eflected by means of the pusher h'.
  • This pusher is operated by the swivel eccentric H on the driving-shaft, and acts upon a hand, h, pivoted to the under side of the ratchet-wheel;
  • the ratchet-wheel turns on the forward stroke of the pusher, and when its movement is reversed the spring-pawl it engages the teeth of the ratoitet'wheel and turns the disk around.
  • a series of holes are out in the ratchet-wheel at varying distances from the center, into which holes the pivot; of thehand It screws, in order to vary the distance through which the disk is turned at each stroke of the pusher. Vlhen a.
  • the stop-lever- I strikes one of the guide-bars 1'1 and releases the pawl from the ratchetwheel.
  • the catnplane g strikes the forked lever U and throws the other bevel half-gear 6 into play with the pin ion 6 on the screw E,thus reyersing the movement of the bed-plate and causing the needle to traverse down the other side of the buttonhole.
  • the length of the stitch may be adj ust ed by using traversingscrews of different pitches.
  • Fig. 2 of the drawings a device is shown for causing the eye of the button-hole to be properly drawn to the needle; but experience has demonstrated that the work can generally be successfully done without the use of this apparatus.
  • a groove, V Upon the underside of the bed-plate U is a a groove, V, the curve of which is slightly eccentric to the center of the eye-hole U in the bedplate.
  • n Upon the disk G is an adjustable pin, n, which is held in the slot 0 by means of a set-screw.
  • Fig. 2 the disk is represented as turned somewhat out ofits true position, which is such that when the needle begins to work the eye of the button-hole the pm c should enter the groove V, so as to draw the edge of the plate closer to the needle.
  • the spring X can be thrown'out of play by turning it horizontally on'its pivot, and if the pin o be removed the device above described will ease to operate, except that the pin W will still hold the plate steadily.
  • the curved finger or thread carrier a whenarranged and operating substantially as and for the purpose specified.
  • diskG, needle], and thread-carrier u when arranged andoperating substantially in the manner described.
  • the shield or thimble M to protect the needle, to bear upon the fabric, and to retain the gimp in position, substantially in the manner described.

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  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Description

2 Sheets-Sheet l.
J. A. & H. A. HOUSE. SEWING MACHINE.
No. 36,932. Patented Nov. 11, 1862.
Q79; I M W W UNITED STATES PATENT OFFICE.
JAMES A.'H0 USE AND HENRY A. HoUsaoF BROOKLYN, NEW YORK, AS- SIGNORSTO'THEMSELVES AND AUG. c. SEAMAN. or SAME PLACE.
I'MPROVEMENT lN S EWlNG-MACHlNES.
Specification forming part of Letters Patent No. 36,932, dated November 11, 1862.
To all whom it may concern:
Be it known that we, JAMES A. HOUSE and HENRY A. House, both of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Sewing-Machines, oi which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, which make part of this specification,-aud in which- Figure 1 represents a view in perspective of a machine for working button-holes, embracing our improvement.- Fig. 2 represents a similar view of a portion of the same, the bed-plate and pressing-lever being thrown back and the thimble which covers the needles removed, in order'to show more clearly the arrangement of the stitching mechanism. Fig. 3 represents a plan or view'of the bottom of the machine inverted, a portion of the frame being broken away at the line 0 o.of 1 ig.-4, to show the mechanism more clearly. Fig. 4 represents a vertical longitudinal section through thesame at the liuea," m of Fig. 3. The two latter fig ores are on a larger scale than the others. Fig.
5 represents a view in perspective ot'the curved finger or looper which carries the lower thread,
and of the cam which operates it detached from the rest of the mechanism. Fig. 6 represents a vertical axial section through one of the spool-carriers at the line 2 z of Fig. 7. Fig. 7 represents a horizontal transverse section through the same, looking upward at the line 31 Fig. 6. Fig. 8 represents a viewin perspective oi the needle and finger, showing their relative position at the commencement of the operation of forming a stitch. Fig. J represents a similar vicw'ot' the same, showing their relative position at the moment when the vertical needle has pierced the cloth and is about to commence its upward movement. Fig. 10 representsa view in perspective of a piece of cloth with the stitches loosely formed therein, inordcr to show more clearly the method of torming the stitch 5 and Fig. 11 represents a wieW of a piece of cloth with a button-hole worked therein.
Our invention, though -gcu'erallyadaptable to. most descriptions of sewing-machines, yet relates more especially to those machines which areemployedin' uniting or stitching together the edges of a fabric, and has for its object the production of a machine which shall be capable of working a'button-hole or other similar article in a practically successful manner by automatic means, to which end our improvements consist, first, in forming a button-hole or overcast-stitch by means of an eye-pointed needle, which works up from below and pierces the fabric, in combination with'a finger or thread carrier, also working up from below the fabric, substantially in the manner hereinafter described secondly, in mounting the entire stitching mechanism upon a dislior independent frame, capable of being rotated automatically at proper intervals without interfering with the operation of stitching,in order to sew around curves,such as the eyes of button-holes; thirdly, in combining a bed-plate to which the fabric is attached, having a periodical intermittent progressive movement in 'a rectilinear path, with a disk (carrying the sewing mechanism) and having a periodical intermittent rotary motion, the cooperation being such that the respective movements alternately take place at proper intervals, but one is always at rest while the other is in motion, whereby both sides and the eye of a button-hole may be worked without stopping the machine; t'ourth'ly, in so combining the mechanism of a sewing-machine that the whole of the moving parts thereof shall ,be situated below the table or bed-plate upon which the material to be operated up'on rests, whereby great facility is given to the operator in manipulating the work; fifthly, in the combination of an eyepointed needle withashank so bent or curved thatthe needle shall move parallel to the shank and carry its loop through the fabric while the shank vibrates near the edge thereot',whereby the needle can be driven from below and yet work over the edge of the cloth; sixthly, in a curved finger or thread-carrier mounted on an inclined, axis underneath the bed-plate and working up through an opening in the same over the edge of the cloth, to take up or enter the loop of the needle-thread above the cloth seventhly, in mounting the curved thread-carrier on the end of an inclined shaft, turning in open bearings and held down by 'a spring, whereby the carrier may readily be removed in thread it; eighthly, in combining the cam which actuates the threadcarrier with the use die-mandrel in such manner that the threadcarrier shall derive its stitching movements .from the needle-mandrel, while the latter is rotated on its axis by the cam; ninthly, in combining with a rotating disk carrying the stitchingmechanism a perforated plate upon which the fabric rests and through which the needles play, as hereinafter described; tenthly,in com biuingatensiou-post with the pert'oratedstitching-plate,through which the needle and looper play,in such manner as to prevent the needle ihreadt'rom being caught hythe looper as they pass each other; eleventhly,in combiningoue or more spool-carriers with a rotating and travwith the rotating disk which carries the sew ing mechanism. in order to control its rotating movements more perfectly; fifteeuthly, in com hitting a fixed and an adjustable guide upon the sliding frame to regulate with precision the turningmovementof the disk to work the eyeof a button-hole; sixteenthly, in combining with suitable guides upon the sliding frame a .deteut on the rotating disk for the purpose of throwing the disk into or out of gear with the mechanism which turns it; se\ enteenthly,iu combiniug with the rotating disk an antomaticshiftinglever to stop or reverse the feed motion at the proper moment when working the bu tton-hole; eighteethly, in a combination of mechanism for imparting an intermittent rotary motion to the (llskfllltll serving round the eye of the buttonhole; nineteenthly, in combining a pin or stop on the rotatingdisk with avgroove on the bedplate, (which has a slight lateral play in its bearings,) for the purpose of drawingin the fabric to the needle when working the eye of the button-hole; twentiethly, in forming the rotating disk in two sections capable of being readily connected or disconnected, one section carrying the s itching mechanism proper, the
other the driving mechanism; twenty-firstly,
in combining the tension-posts with the disk in such manner that they shall be carried underneath the same; twenty-secondly, in a thim-- ble or device for protecting the needles for holding the down the cloth and for guidinga cord to be worked in while making the stitch.
in order to carry out the objects of our invention we construct a strong rigid frame to contain the mechanism. Upon this frame we mount a sliding frame which traverses back and forth in a rectilinear path, and carries a bed-plate or table upon which the material to be sown rests, as well as a presser-lever to hold the material down upon the bed-plate.
The bed-plate and lever are both hinged to one end of the sliding frame, but independently of each other, in order that they may be removed to give access to the machinery. A hole is also made in the center of each, and through this opening the needles work.
A driving-shaft works in suitable hearings in the frame and actuates the driving mechanism. The bed-plate and movable frame derive their movements from this shalt. A bracket secured to the n'iovable frame carries a nut traversing on a screw arranged horizontally and longitudinally beneath the table and turning in hearings in the frame. A An iutermittent rotating movement is periodically imparted to the screw by means of a bevel-pinion on one of its ends. This screw gears alternately and at intervals into two bevel-Wheels, secured upon the same collar. (one uponeach side of the pinion,) which collar slides freely endwise upon the driving-shaft. The bevel- Wheels have teeth upon one half only of their faces and are at such a distance apart that either or both of them may be' disengaged at once, so that the screw may turn in either directiou, or be at rest, as required.
Thejaws of one end of a curved and forked shifting-lever (pivoted atoneend to the frame so as to turn freely in a horizontal direction) engage in a slot in the collar of the bevel halfgears and slide them to and fro at the proper momentin a manner hereinafter more fully described.
A hearing is formed .in the center of the stand or frame, upon which a disk is supported and turned. This disk, for convenience of construction, we prefer to form in two sections, one resting upon the other, and both securely fastened together. The lower section of the disk carries the actuating mechanism, while the stitching mechanism proper is carried by the upper section. The center of this disk is hollow and forms a tube through which a needle bar, arm, or mandrel reciprocates in thedirection of its length. The mandrel is driven by an eccentric and pitman from the drivingshaft. The disk turns freely in its bearings in a horizontal plane. It is actuated by a pusher driven by a swivel eccentric on the driving-shaft. The pusher is pivoted to a ratchet-wheel, which turns loosely upon the disk during the forward stroke of thepusher; but when the movement is reversed a springpawl upon the disk engages the teeth of the ratchet, thus causing the disk to rotate. The spring-pawl is held out of contact with the ratchet when the sliding frame is moving by means of a guide-bar upon the frame; but as soon as the pawl slips past the end of the bar 5 the disk begins to rotate. One of these guidebars is placed at each end of the sliding frame. One is fixed, but the other is rendered adjustable, in order to vary the size of the hole worked. 1
A scale is marked upon the sliding table, and
an index attached to the movable guide-bar serves accurately to measure the hole to be worked.
The vibrating needle arm, which plays through the center of the rotntingdisk. has on its upper end a needle carrier or shank, bent into a U shape, so that when a needle is inserted into the shank it shali be parallel to its stein. This needle plays through a perforalliOll in astitching-plate and through the opening in the bed-plate and presser-foot hereinheore mentioned. A perforated tension-post is also secured upon this stitching-plate to pre- \"ent the kinking of the needle-thread and its entanglement; with the lower-thread carrier.
A curved finger or threadcarrieris secured on the endot' an inclined shaft, which rocksiu open hearings on the rotary disk. This shall: is held in place by a plate-spring". and may readily be removed in order to insert a thread into theeyes ol'the carrier. Thesis-aft is rocked by means of a hentarm, which playsin a groove on a sector-shaped earn pivoted upon the disk.
This cam derives its movements from the nee-- dIe-ruendrel, with which it is connected by means ot a limit. The needle-arm is connected with its pitinan by a swiveling-joint, so thati't may turn freely on its axis. Thearrangenient is such that while the'hnger or thread-carrier derives its rochinguioi'einent from. the needlemandrel the latter derives its turning inure- "nient from the carrier, so that their relative position remains unchanged at all times.-
Spool-cases are inserted into holesin' the disk and held in place hy springs. The cases are cup shaped, and have stems in their ho tonis upon which an ordinnr spool may he placed. Einitahletension apparatus are also inonnted nplon the dish Theacconnpanyingdrarvings represent a con-' renient arrangement oiparts for carrying out the object of our inrention. in this instance the mechanism is shown as supported by and inclosed in a strongl'raine, A, ot'cast-iron. A
sliding iranicortahle, B, rests upon this frame, and is provided with grooves h upon its under side, which traverseou pins or, projecting from the upper part, of the main frame A, shown in Fig. 3, thus enabling, the sliding 'i'ranie to traverse horizontally and longitudinally upon its supports.
A. hrd plateq'b, is pivoted to oneiend of the sliding frame in such manner as to allow it a slight degree of lateral'play on its hinges c. -A. in, 1), upon the plate tits into a hole, or, upon the sliding frame, and thus holds it steadily when lowered upon the slidingiranie.
A. curved and slotted nrnilever or presserfoot, 1), is hinged to the sliding frame at the some point as the bed-plate and in like manner, by which means they can be raised from the bedplateeither both togetherorseparately, as desired. A slotor opening, 6, shaped like a keyhole or a button-hole, is madein theoenter of the plate and Presser-foot, through which opening the needle I and finger n play. The
material to be sewed is clamped between the in hearings 2 upon the inain frame, by which means the sliding frame B is traversed.
A horizontal driving-shaft, F, is mounted upon suitable bearings upon one end of the main frainmheneath the table. Asleeve, E", is mounted upon the shaft near one end there of, in such manner as to turn with the shaft, and yehbe capable of sliding freely thereon in the direction or its length. This sleeve ries two bevel-w heels, 6 6 facing each other, nixed at an invariable distance apart, and having teeth on one-halfot' their peripheries only; A herehpinion, c, is mounted upon one end'hl' the rotating screiv E: The bevel half-gears e e revolve one oneachsideof the pinion c, and their relative position is such that either inn}; be in rear with the pinion, (but not both at once,) or both may be disengaged from it at the same time, when, of course, the screw andsliding table Wouiil heat rest. By this an intermittent progressive increment, either hacltrrard or torward, may he imparted to the sliding table B.
The engagement and disengagement of the half-gears and pinion is eii'ected untoinaticaily in manner hereinafter more fully described. The details ot' this arrangement are clearly shown in Figs. 3 and i of the drawings.
in the center of the frame a hollow pillow or hearing-cylinder, it, is erected, and forms the main hearing for the sewing mechanism proper. This mechanism contained within a frame, which,forconvenienceot'constructionaudother reasons, we prefer to make in the form of two dislrs, G G, arranged horizontally one above, the other, with an interval between them, but securely constructed and rotating; upon the main hearing A". Both bl the disks are per 'i'orated vertically, so as to leave an opening through whicha needle-mandrel K plays. The lower dish, G, has a donaward-projecting rim or flange, g, which incloses a ratchet-wheel, H, turning freely upon the main hearing, and independently of the disk. An "alternate irihratory inovcinentaronnd its axis is imparted to this ratchet-wheel hy means ot a hat curved bar or hand, It, pivoted to its under sitlcby a screw, it. A swiveling; eccentric, H, on the driving-shalt F imparts a reciprocating motion to the hand it by means of the pitmzin I1 pivoted at one end to the eccentric, and atthe other to the hand, as shown in Fig. 3. The length of the stroke of the ratchet-wheel may be varied by inserting the pivot it into one or a series of holes in the ratchet-plate at varying distances from the center, or in some other suitable manner well known to mechanics. A horizontal arm or bar, I, is rigidly secured to the lowerdisk,G. A spring-pawl, h is pivoted to the under side ot'ihis disk and lies below and parallel to the stop-bar L Upon each end of the, sliding frame'B is a curved bracketor guide-bani 1 One of these 7 bars is rigidly secured to the frame; but the other slides in a horizontal groove under the slidiug'frame. The arrangement is such that when the outer end of the spring-pawl bears against eitherone of the guide bars it is held out of contact with the ratchet whichthen plays ireely'back and forth withoutturning the disk but as soon asjhe end of the springpawl escapes froin'the guide-bar its other end engages the teeth of the ratchet-wheel and causes the disk to turn with aniutermittent rotating movement.
The movable guide l is adjusted by aset- ,screw. J, on the end of the sliding frame. A
scale is marked upon a projection, J, at one end of the frame, and the distance which the guide moves is accurately measured by means of an iudex,-J, whichprojects through a slot in the table.- The'size to which the button holes are to be worked can thusbe accurately adjusted, H v
The needle-mandrel K is driven by means of an eccentric, K, on the driving-shaft, revolving in a yoke, K on an elbow-lever or pitman, K, turning on a pivot, K, on the frame. The connection between the pitman and mandrel is formed by means of a swiveling ball-aud-soc ketjoinnK which permits the needle to rotate freely on its axis without impeding i'tslongitudinhl. vibrations.
A needle-bar, L,is 'mouuted upon the upper end of tl ie; nan'dr l. This bar is vertical, and
bar plays through an opening in a stitching.
plate, M, secured to and projecting above the face of the upper disk, G. A tension-post, m,
extends upward from this plate parallel to the needle-bar, and is provided with a series of holes to regulate the tension of the needlethread.
The needle and tension-post may be. protected by means of a tube or thimble, M, which may also serve to hold down the edge of the cloth and to guide'a cord to be covered by the stitching.
A curved finger o'r thread-carrier, it, having. an eye near its point and another near its heel,
is secured to the end ot' a. slightly-inclined shaft, N, turning in suitable hearings on the disk G. This shaft has a rocking movement imparted to it by ineansof a bent arm, n, on its hinder end, which arm works in a slot, 0,
on a quadrantshaped cam 0, pivoted to the lower disk, G. This cam is connected with the needle-arm K by a link, 0', and is operated by it. The bearings of the rock-shaftN are so constructed that it can be lifted out of place at any time. It is held in place'whe'n at work by a spring, n pivoted onthe disk G and turning freely in a horizontal direction.
The spools are carried in spool-cases P P", I
which lit into holes in the disk G,and are held in place by springs 11, which encircle the cases. The spools turn on rods in the cas'es,which have slots in them, through which the thread passes; Tension-rods R. R are also secured to the under side of this disl'Laud have holes in them, through which the threads are passed. A retaining-spring, S, is also placed upon the disk. This spring has a slot, .9, in one end, in which a set-screw. s,'works. By this means the spring can be moved either longitudinally or laterally in a horizontal plane.
The d isk is coi'npressed between plate-springs T,-the ends of which are secured to the frame A, and in this instance the screws a,which secure the plate springs T to theiframe, also form the pins on which the frame B slides.
The slidingl'rame,'as before remarked, is traversed backward and forward by means of two bevel half-gears, c" c which "act alternat-ely upon the bevel-pinion e on the end of the screwfand are alternately thrown into or out of gear in the following manner: The collar E slides freely on the driving-shaft F, and is actuated by one-arm, u, ot' a forked lever, U, which enters a. groove, 6, on it. This lever is curved, so as partially to encircle the wheel G, and extends entirely across the machine'aud turns upon a pivot, n on-the frame. The other arm, a, of this lever is also curved andpartly encircles the disk G. A screwm,
is inserted into the end of this arm. Upon the opposite arm a projection, u", is also made.
Upon one side Ofthedisk is a cam-plane, corresponding with the set-screw a on the short arm a, while on the oppositeside is a corresponding notch, g'i. When the disk is rotated the cam-plane strikes against the screw u, and slides the gears eudwise on the shaft, throwing one into the other out of gear, or
holding both out of gear at once.
The operation of the machiueisas follows: The parts'are supposed to be in the-attitude shown in Fig. 1 of the drawings--that is, just beginning to operate on the straight side of the-button-ho1e. A button-hole having been out in the cloth it is placed over. the keyhole 0 upon thebed-plate O,andclampedbetweeu it and the presser-foot D. The needle 1 .and
fingern having been properly threaded and the tensions adjusted, the machine is ready for operation. The finger-thread is carried by ,the spool P. It passes through a slot in the spool and through a hole in the bottom ot the'tension-rod R, entering it in theceuter in order to perm'itthe rod" to be turned without eu ang ling the thread. Itthen passes partiallyaround the rod and through an opening, 7, in the disk G, audthrough the tension-spring S. Thence it passes through the eye in the heel of the bent finger, and along tlte inside of the finger to its point, and through the eye iii the point to the other side again. The needle-thread passes from the spool P around another tension-rod, it, in a manner similar to that of the other thread, then through the opening in the disk, and through the eyes of thethread-retainerm. Thence through the eye of the shank tothe side on which the finger comes on its upstroke, and down through the upper eye of one can be brought down from the spool d onv the ptesser-lever. I
The needle may be covered by a tube or thitnble, M, which prevents anything from catching in it, and also serves both as an additional means of holding the cloth down upon the stitching-plate and as a guide for the cord.
The tinger n can readily be removed in 'order' to thread it.
Rotary motion may he imparted to the driving-shaft F inany suitable manner. As the shaft revolves the eccentric K acts upott its yoke K and vibrates the needle-arm Kthrough the pittuan K and rock-shaft K. A semirotative'or rocking movement is imparted to the finger n by means of its bent arm n playing in the slot' 0 in the vibrating cam (),which is connected to and operated simultaneously with the needle-arm K by the link 0.
The stitch is formed in the following manner: As the straightneedle descendsitpasses through a loop oi; the finger-thread and then through the cloth, the loop of linger-thread being tightened at the same time by the backward and downward movement of the finger. After passing through the cloth the needle descends on the inner side of the linger (which is all the time retreating) until its point is about one-fourth ot'an'inch below the point of the finger to allow sutficient loopage. It then begins to ascend, the loop opening as it rises,
and the finger passes through the loop thus formed, and up throughthe slit and over the edge of the fabric. When the movement is reversed the needle again passes through the linger-thread, which is again drawn tight.
Owing to the inclination of the shaft N, and the relative positions'ot' the needle and finger, their threads are alternately thrown partially around each other, thus producing an interlocked stitch. This is clearly shown in Figs. 7
needle-thread, and the red lines the fingerthread.
The rectilinear traversing movement is mparted to the bed-plate O and movable frame B in the following.manner: The relative arrangctnent of the catn-plane on the disk G, and the pin '(6 on the forked lever U is such that the half bevel-gear e is held in contact with the pinion c on the end of the screw E which moves the frame, thus giving it an intermittent rectilinear forward movement. The turning movement. of the sewing apparatus is eflected by means of the pusher h'. This pusher is operated by the swivel eccentric H on the driving-shaft, and acts upon a hand, h, pivoted to the under side of the ratchet-wheel; The ratchet-wheel turns on the forward stroke of the pusher, and when its movement is reversed the spring-pawl it engages the teeth of the ratoitet'wheel and turns the disk around. A series of holes are out in the ratchet-wheel at varying distances from the center, into which holes the pivot; of thehand It screws, in order to vary the distance through which the disk is turned at each stroke of the pusher. Vlhen a. half-revolution ot" the disk has been efiected, the stop-lever- I strikes one of the guide-bars 1'1 and releases the pawl from the ratchetwheel. At the same moment the catnplane g strikes the forked lever U and throws the other bevel half-gear 6 into play with the pin ion 6 on the screw E,thus reyersing the movement of the bed-plate and causing the needle to traverse down the other side of the buttonhole. The length of the stitch may be adj ust ed by using traversingscrews of different pitches. It will be observed, that by arranging the'stitching mechanism entirelybelow the table, the surface of the tahleis left unobstructed, whereby the handling and turning of the work is greatly facilitated. Moreover, the operator has at all times an unobstructed view of the work, and can thus instantly detect any imperfection or incorrectness in the stitching.
In Fig. 2 of the drawings a device is shown for causing the eye of the button-hole to be properly drawn to the needle; but experience has demonstrated that the work can generally be successfully done without the use of this apparatus.
Upon the underside of the bed-plate U is a a groove, V, the curve of which is slightly eccentric to the center of the eye-hole U in the bedplate. Upon the disk G is an adjustable pin, n, which is held in the slot 0 by means of a set-screw. In Fig. 2 the disk is represented as turned somewhat out ofits true position, which is such that when the needle begins to work the eye of the button-hole the pm c should enter the groove V, so as to draw the edge of the plate closer to the needle.
any farther, and the pin 20 locks the bed-plate at the same moment.
The spring X can be thrown'out of play by turning it horizontally on'its pivot, and if the pin o be removed the device above described will ease to operate, except that the pin W will still hold the plate steadily.
It is obvious that the details of the constructionof our machine might'be modified in various ways without departing from the spirit of- 1 our invention, which modifications would read' ily suggest themselves to'a skillful mechanic after reading our specification. Forexarnple', the sliding frame B'might .be made stationary and the gearing frame becaus'ed' to traverse without varying the result. as an inspection 0 our drawings will clearly show.
We have described our machine as adapted to working button-holes; but it is manifestly. adaptable to various other descriptions of work.
Whatwe claim as our invention, and desire to secure by Letters Patent.1is-- 1. The combination ofian eye-pointed-needle bar I and fixed bar 1 with the sliding frame working up from below the arable and penetrating the fabric-with a thread-carrier also working up from below and penetratiugthe fabric, substantially in the manner described, for the purpose setforth.
2. Mounting-the entire stitching mechanism upon an independent-skeletonframe or disk having a periodical intermittent rotary movement imparted toit, substantially in the man'- ner described, for the purpose set forth.
3. The combination of a bed -plate.(upon which the material to besewedis clamped) having a periodical intermittent progressive motion in a rectilinear path, and in alternatelyopposite directions, with an independent disk orframe carrying the stitchingmechanism and having an occasional intermittent rotating movement in one direetion,lwhen co-operatin g, substantially in the manner described,- for the purpose of working automatically both sidesand the eye of a button-hole, as herein set forth.
4. The combination of a stitching, mechanism, substantially such as described,'with a bed-plate or table upon which the fabric rests in such manner that the whole of the entire mechanism shall be beneath the bed-plate, as herein described.
The combination of an eye-pointed needle with a shank so curved or bent that the needle shall move parallel to the shankand carry itsloop through the fabric while the shank vibrates near the edge thereof, substantially in the manner described, for the purpose of sew.- iug over the ed go of a fabric, as herein set forth. 4
6. The curved finger or thread carrier a, whenarranged and operating substantially as and for the purpose specified.
7. The combination of the inclined shaft N of the thread-carrier, when made to rest in open bearings, with a retaining-spring, n substan- --t'ially as described, for the purpose set forth.
8. The combination of the cam O, inclined shaft '12, and needle-mandrel K, when co-operating substantially in the manner and for the purpose described.
9. The combination of the rotating disk G and stitchingFpla-te M, as and for the purpose described.
10. The combination of'the stitching-plate M and tension-post m,- substantia-lly as and for the" purpose described. I
11. The combination of the spool-cases P P,
diskG, needle], and thread-carrier u, when arranged andoperating substantially in the manner described.
12. The combination" of-the-spbol-case P, tension-post R. adjusting-spring S, and thread- .carrier n,.substanti ally as described, for the purpose of regulating the positionof the pearl, as set forth.
13. The combination of the sliding frame B and traversing-screw E. substantially in the manner audifor the purpose set forth 14. The combination of the rotating disk G with the friclion spriugs T, substantially as and for the purpose described.
15. The combination of the adjustable guide- B, substantially in the manner and for the-purpose described.
16. The combination of the guide-bars I? with the stop-lever- I and spring-pawl 11?, substantially in the manner and for the purpose described.
17.. The combination of the shifting-lever U with the rotating disk G, substantially in the manner and for the purpose described.
18. The combination of the pusher h, ratchet-wheel H, and spring-pawl-h, substantially in the manner and for the purpose described.
19. The combination of the groove V on the bed-plate with the stop'pin e on the disk, substantially as and for the purposeset forth.
20. The combination of the two sectionsGG of the disk, when connected and cooperating substantially in the manner and for the purposes-described.
21. The'combination of the tension-postsRR with thedisk-G, when arranged beneath the same, as and for the purpose described.
22. The shield or thimble M, to protect the needle, to bear upon the fabric, and to retain the gimp in position, substantially in the manner described.
In testimony whereof we have hereuntosnbscribed our'narnes.
' JAMES A. HOUSE.
HENRY A. HOUSE. Witnesses:
E. N. House, F. HEARSON.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050237833A1 (en) * 2004-04-27 2005-10-27 Sang-Jin Byeon Semiconductor memory device employing clamp for preventing latch up

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050237833A1 (en) * 2004-04-27 2005-10-27 Sang-Jin Byeon Semiconductor memory device employing clamp for preventing latch up
US20080285356A1 (en) * 2004-04-27 2008-11-20 Hynix Semiconductor, Inc. Semiconductor memory device employing clamp for preventing latch up

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