US1447530A - Lace-braiding machine - Google Patents

Description

H. BUSCHER LACE BRAIDING 'MACHINE 1 2 sheets-sheet l Filed Aug. 14 1919 hw Q ar, 6, 1923. y 1,447,530

, H. BUSCHER LACE -BRAIDING MACHINE Filed Aug. 14, 1919 2 sheets-sheet 2 Patented Mar. 6, 1923.

Mami@ LACE-Banniere MACHINE.

Application Yfiled August 14, 1919. Serial No. 317,4895.

(GRANTED linnen THE rnovisIoNs or Tim ACT or MARCH 3, 1921, 41 STAT. L., 1313.)

To all 'whom t may concern.'

Be it known that I, HERMANN BUSCHER, a citizen of the German Republic, and resident of Langerfeld, near Barmen, Germany, have invented certain new and useful Improvements in Lace-Braiding Machines, for which I have iiled an applicationior patent in Germany on Oct. 3,1,1`914,PatentrNo. 294966,A and of which the following is a specilication. l y

v My invention relates toa sofcalledsingle thread lace braiding machine wherein .the track for the bobbin-carriers is composed of a series of substantially circular partial tracks communicating with each other on their points of contact, and wherein each partial track isl provided `with rotatable and arrestable drivers for the bobbin carriers, said drivers being controlled by the pattern gear and adapted to be rotated only when the bobbin carriers are intended to be moved on the particular partial track. In the known machines of this kindeach driver is rotatable in one direction only, the direction of rotation of one driver being contrary to that of the adjacent one. v y Consequently the bobbin carriers canbe moved inthe `partialtracks merely in the predetermineddirect-ion oi rotation of the respective drivers.

The main object of my inventionis topro- `vide pattern gear controlled means whereby the bobbin carriers can be moved in .each partial track, at pleasure, eitherin `the one or the other direction. By these means, on the one hand, many superfluous movements of the bobbin carriers hitherto necessary in producing certain known patterns may be avoided and consequently the` number of pattern cards reduced. while on the otherl hand a novel mode of moving the bobbin carriers through theltrack and therebyY the production ci certainy new patternslis rendered possible, for instance, the bobbin carfiers maville moved trom. .0.11 partial .track to any other partialtrackwhile remaining on thesame side of the.track t hat is to say, without interbraidi'ngA the ,threads of .the bobbins which by this movementf .change their ,respective positions. l Y y 4 With this and other-objects in view. my invention C-Onsstsln .the Iievelfarrauamenfs landcombinatoa ffnaiftafullvdes the idiomas@ .j `n .laad lni in the claims, reference being had to the accompanying drawings, in Which- VFig. 1 is a top view, partly in section, of a portion of a lace braiding machine, UF 1g. 2 is a. sectional elevation taken on the `line A-A `of Fig. 1, Fig. 3. is a sectional eleva-tion on the line idf-.B of the Fig. 1, and

Fig'.r4 is a detail.

`Like letters of reference indicate like parts throughoutthe drawings.

a is ythe bottom plate of the machine to which are fastened thelpillars Z2. The latter bear at their upper ends the fixed circular plates c situated as well known in recesses of the upper plate d. The spaces c1 between the plates c andthe recessed upper plate d form the track for the bobbin carriers which, as obvious from Fig. 1, is composed of a series of circular partial tracks communicatingr with each other between each pair of adjacent plates c. For moving the bobbin carriers in 'the track each partial track is provided with a driver f situated immediately below the respective plate 0. The drivers f vare vby means of their sleeve-like hubs f1 rotatablyv mounted on the respective pillars b. Y

According to my invention each driver may beV rotated, at pleasure, to the left or to the right. To this end, there are arranged two inipellers for each driver, said impellers consistingr of a. pair of toothed wheels g and e, spaced apart and rotatably mounted the one, g, on the Vdriver-hub f1 which for this purpose is provided with a shoulder f2, the other. e, below the said hub immediately on the pillar by. All wheels g and eof the machine areconstantly rotating, one each of said'wheels being driven by means of connecting Vgearings D, kE and D. F, while all other are Vrotated by the mutual mesh of the adjacent wheels g `and e, respectively. Pro- .visionis made however that the wheels g and eA belonging .tonne and rthesarne driver ,are drivenin ,counter direction. For instancalbytbe engagement of the connecting 'Whl .E Wth thaflvhly .of the 011e driver and by., the engagement Voit" the connecting' wheel F. with thevvh'eel e of the v'adjacent river, thevvheel q visible in Figs. 2 and 3 y `f the -lefhuwhile `the wheel visi- Ie a me maestri-a@ aan Accordingly the wheels meshing therewith are also rotated in counter' direction, but in the immediately neighboured pair of wheels it is the wheel e that revolves to the left and the wheel g that revolves to the right, and so on.

Between each pair of wheels g and e a coupling L is mounted on the hub flot the driver, the coupling being by means of a feather-key axially displaceable but nonrotatable on the hub. The coupling z, has on its upper and lower tace clutches adapted to coact with corresponding clutches g1 and el provided on' the lower face of the wheel g landen the upper tace of the wheel e, respectively, so that by an axial displacement ot the vcoupling sleeve 7i the driver 7i may at pleasure be coupled tothe wheel g or to the wheel e and thus rota-ted `one time to the lett, the other time to the right, or finally disconnected from both wheels and thereby arrested. t t Y The coupling sleeve /z` has a circumferential groove engaged by a 'forked arm z', fixed toa rod /c which latter is vertically guided in holes ot the bottom plate (t and the up per plate d. Twc coiled springs Z and fm surrounding the rod 7c are situated the one above, the other below the hub portion ol' the arm c', ysaid springs having the tendency to hold the rod /c` andtherewith the coupling sleeve/7i` in their middle position wherein the driver is disconnected from the wheel g as well as from the wheel e. The axial displacement ot the coupling sleeve 7L is etiected by incans oit the pattern gear.v For this purpose two angle levers o and p are provided which are pivotally journalled on a bracket a, fastened to the underside ot the bot-tom plate allot the machine. .One arm each osaid two anglelevers is, in a well kncm'n manner, by meansot intermediate combinations ot rods and levers 01, 02J o?? and p1, p2 and'pa,respectivelyconnected-to a separate lifting wire ot the pattern gear so that the twolevers 0 and p may be turned independently from one another. The other arms ot ,the angle levers 0 and Yp engage a head q provided at the lower end of the rod, and what is more,` the lever o engages said head troni below, the lever p in the contrary iroinvabove. y Therefore, ony turning the ,Y lever o by means ot the pattern gear the rod 7c is lifted, buton'turning the lever p it is lowered. causing the coupling sleeve iz toengagefeitlier the clutches of the wheel g orl thatV ofthe wheel e. After thepattern gear has released the respective lever Q or p the rodl and the coupling sleeve /tare returned intotheir middle position by the action of theone or theother spring Z or mi, while the lever 0 orp is returned tov itsinitial Vposition the Aaction of the spring `ot or prespectively., In e .ordertO securely holdthe P-0dll: and the sleeve h in the mddle'or disengag- Ving position a spring bolt with wedge-like notches are, as is obvious from Fig. l, in this instance, provided with two driving edges eac-h, that is to say the notches are so shaped that the drivers are apt to take the bobbin carriers along in both directions The notches ot the drivers are furthermore', but in a known manner, so shaped that each driver, when arrested closes the respective partial track aga-inst the neighbouring one. Thus the drivers resting for a time serve simultaneously as a guide Jfor the bobbin carriers moving en the adjacent partial track, lnsteadot or besides this, the usual and well known switches, `preferably controlled by the pattern gear, may be arranged for guiding the bobbin .carriers at the communication-places of the partial tracks.

The drivers are in the example, shown adapted to rotate each time tor one halt revolution oi the wheel g ore, whereupon they are arrested for at least one `further halt revolution ot the wheels g and c. in order to prevent unintended rotation of the drivers after heilig disconnected trom the wheels g and e, t-he hub flot each driver is provided with two iiattened portions e, c. arranged at diametrally'opposite sides. `Coact-ing with said flattened portions lis a spring bolt u which is guided in a bracket t fastened to the underside ot' the upper plate Z and bearing with its flat head against the .one or the other flattened portion e, u of the driver hub. thus securing the driver in its resting position. As will be readily understood from the foregoing description, all the drivers may, at pleasure, be rotated either to the lett or to the right,A consequently the bobbin carriers can at every place ot the track, that is to say,

independently ot the partic.ularpartial track Y Thusquite novell modes et moving the bobbin carriers through the track result, which uenables me toproduce certain new patterns and'to omit many idle movements of the bobbin "carriers hitherto necessary, in `prodncing known patterns. Claims: Y y y ,1. In a lace braiding machine, in `combination: aV plurality yoibobbin carriers, a

trackforsaid-bobbin carriers, rotatable and 'arrestable drivers foil mpving said -bobbin carriers in said track,l and pattern gear controlled direct and reverse mechanism for each of-said drivers whereby it may be rotated, first in one direction and theirv in theother.

2. In a lace braiding machine', in 'combination: a plurality of bobbin carriers, a track for said bobbin-carriers, rotatable and arrestable drivers adapted to move said bo=bbin carriers in vsaid trac-k in both directions,

two impellers for each of said drivers, said impellers lbeing adapted to continuously ro tate, theone to the'left, the other to the right, and pattern gear controlled means normally held in inoperative position and adapted to connect the drivers either to the one or the other of the respective two impellers.

3. In a lace braiding machine, incombinatio-n: a plurality of bobbin carriers, a track for said bobbinV carriers, a series of iixed illars, a series of rotatable and arrestable drivers with sleeve-like hubs mounted on said pillars and adapted to move the boibbin carriers in said track in both directions, a series of gear wheels, rotatably mounted on said sleeve-like hubs of said drivers, a second series of gear wheels mounted coaxially with the wheels of said first series of gear wheels, the wheels of said second series of gear wheels being adapted to revolve in counter direction to the respective wheels of said` first series of gear wheels, clutches on the adjacent faces of said gear wheels, a double faced coupling between each coi-axial pair of said gear Wheels, said couplings being axially movable but non rotatably mounted on said sleeve-like hubs of said drivers`r resilient means tending to hold said couplingsin their inoperative position, and pattern gear controlled means adapted toaxially displace said couplings.

4,-. In a lace braidingmachine in combination: a plurality of bobbin carriers, a track for said bobbin carriers, a series of fixed pillars, a series of rotatable and arv restable drivers with sleeve-like hubs mounted on said pillars and; adapted to move the bobbin carriers in said track in both directions, a series of gear wheels yrotatably mountedon said sleeve-like hubs of said drivers, a second series of gear wheelsmounted co-aXially with the Wheels of said first series of gear Wheels, the Wheels of said second series of gear wheels being adapted to revolve in counter direction to the respective Wheels of said first series of gear Wheels, means for continuously rotating said two series of gear wheels, clutches on the adjacent faces of said gear Wheels, a double faced coupling between each coaxial pair of said gear wheels, said couplings being axially movable but not rotatably mounted on said sleeve-like hubs of said drivers, forked arms engaging a groove in said couplings for governing same, vertically guided rods carrying said forked arms, resilient means tending to hold said rods with said forked arms in their middle position, and `pairs of pattern gear controlled levers, engaging said rods and adapted to lift and lower said rods with said forked arms.

5. In a lace braiding machine, in combination: a plurality of bobloin carriers, a track for said vbobbin carriers, a series of fixed pillars, a series of rotatable and arrest-able drivers with sleeve-like hubs mounted on said pillars and adapted to move said bobbin carriers in said track in both direcgear wheels being adapted torevolveinl counter direction to the respective wheels of said first series of lgear wheels, connecting gearings adapted to continuously rota-te said two series of gear wheels, clutches on the adjacent faces of said gear wheels, a double faced coupling between each co-aXia-l pair of said gear wheels, said couplings being axially movable `but non rotatable on said sleeve-like hubs of said drivers, forked arms engaging a groove in said couplings for governing same, vertically guided rods carrying said forked arms, two sets of coiled springs surrounding said rods and tending to hold said rods with said forked arms in their middle position, spring bolts adapted to secure said rods against unintended movement, and pairs of pattern gear controlled levers, engaging said rods and adapted to lift and lower said rods with said forked arms.

In testimony whereof I have hereunto set my hand.

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