US1261988A - Braiding-machine carrier. - Google Patents

Description

T V. WILSON BRAIDHJG MACHINE CARRIER,

FILED MAY 5. 19112.

APPLICATION Patented Apr, 9, 955728.

m m m m 151 5 awe/1 W Specification of Letters Patent.

illl'llOT'fl'AE iXlLSQN, 075 W Y OMISSING BOROUGH, PENNSYLVANIA, ASSIGNOR- TO TEXTILE EZACEIZG 15d "wears, F WYOIIIISSENG, EEN'NSYLVANIA, A CORPORATION OF PENNSYL- V BEAIZ'BING-MACHINE CABLE/IE3.

Patented Apr. 9, 1918.

- Application filed Tiiay 11, 1915. Serial No. 27,306. i

e at; whom it may concern:

lie it known that l, THOMASV. WILSON, a citizen or the United States, residing at borough of Wyomissing, in the county of Berksv and State of Pennsylvania have invented certain new and useful Improvements in Braiding-MachineCarriers, of which the following is a specification.

My invention relates to bobbin-holding devices having means for controlling the tensioning and let-ofi of the thread; and it consists in the improved construction hereinafter described, the novel features of which are specifically pointed out in the claims.

The drawing shows the invention applied to traveling bobbin carrier such as is an ployed in braiding machines, though the invention is equally applicable where the ro-' tatahl'e bobbin or supply holder is carried upon a fixed supporting frame.

Figure l is an elevation of a device em- 'hodymg my invention. in preferred form; extreme positions of the thread-tensioning lever being indicated in dotted lines:

Fig. is a sectional view similar to Fig; 1.

The braiding machine carrier indicated is of a well known type, having a supporting frame with a .foot portion comprising spaced plates 2, 2 connected by a heart or shuttle piece 5 and a downwardly extendiiig pin .4 to engage the drive gears of a braiding n'iachine. A threading standard or stem 5. and a supply-holder standard or spindle 6, form rigid portions of the frame.

supply-holder let-ofi device in the form or a pawl 8 is loosely strung upon the spindle 6 and plvotally supported at the foot of the latter, upon lateral rejections 9 on the frame 7, so as to be roclable upon said supporting projections. 'lhis pivoted let-0d device 8 forms a seat for a cylindrically coiled SPIHL: 10, which is strung upon the pindle 6 above it and secured to the spindle at one end so as to exert endwise ressnre upon said rockahle device to normal y maintain it in horizontal position; the pressure thus exerted being definitely regulated, as indicated,hy providing a plurality of notches 1i, 1 in the spindle 6 for adjustahlv engag ing set screw 1:? in the spring collar 13.

The let-oi? pawl device 8 indicated, is a detent projection 15., ad" adapted to erg-a e the toothed t hread-sapply holder 17 which holder is adapted to rotatably inclose the adjustably secured spring 10 on the spindle 6, and comprises a suitable wrapping or cop of thread 17.

As indicated the thread 18 extending from the holder 17 is passed through a guide eye 19 in the stem 5; then through a secondguidc eye 20 of a lever 21;- and finally through a terminal guide eye 22 of the stem.

Said lever 21 is arranged to erve both as a tensioning lever for the thread, and as a means for releasing the supply holder 17 by operation oi the holder engaging device 8, so as to let cl? thread as required; the spring 10 serving to control both these functions.

The pivot end of the lever 21 is shown fixed to a pivot shaft 25, which extends through pivot jaws 26 of the frame 7, and is provided between aid jaws with a cam projection 27' adapted to operatively engage the adjacent end portion 28 of the pivoted let-oli device 8; so that swinging movement imparted to the lever by tensioning of the threadlS will exert a rocking action on said. deviceagainst the seating pressure of the spring 10. This rocking movement of the let-0d device as the lever is raised, tends to release the supply holder from the detent projection 15 at the other end of thedevice, both by depressing the latter and by raising the holder as shown. In order that the final releasing movement of the pawl-shaped letat which the lever 21 operates to rock it, by

employing a stepped arm or cam projection 27 the outer step 27 of which comes into action against the pawl device whenthe sup:

ply' holder isnearly released,-as inthe position illustrated in the, drawing.

The lever 21 is provided with a sto projection which is dropped into the pat of a stop-motion mechanism in case of thread breakage, as usual.v It will bereadily seen" that owing to the cooperative arrangement of the let-off device 8 and the lever 21 with the spring 10, the latter serves to satisfactorily control both the thread tensioning andthe bobbin-releasing action; and that the locath'ln regulation, and operation .ofthe spring are simple and advanta eons. The preferred construction specifics y set forth may be readily modified without departing from the essentials of the invention as defined in the claims,

What I claim is:

1. In combination with a carrier frame having a fixed spindle, a tensioning let-ofi' spring cylindrically coiled upon said spindle,

a rotatable supply holder inclosing said spring, a pivotally mounted holder-control ling device forming a seat for said spring, and a thread-tensioning lever arranged in constant operative engagement with said. de-

- a .pivotally mounted holder-controlling device forming a seat for said spring, and a thread-tensioning lever arranged in constant operative engagement with said device.

3. In combination with a carrier frame having a fixed spindle, a tensioning iet-oii laminae n w a r A .4 a 1 e spr ng cyiindrloally coiled pun said spinnle a rotatable supply holder inelosing said. spring, a holder-controlling pan i lever 1n- .termediately pivoted and forming a seat for said spring, and a thread-tensioning lever arranged to impart a rocking movement to said, pring-pressed pawl lever.

l. A carrier frame having a fixed spindle 'provided with a cylindrioally coiled spring:

one end of which is fixed theneto a supply holder rotatably mounted upon said springprovided spindle, a let-0t? device pivotally mounted on said frame and controlled by end-Wise pressure of said spring, and a thread-engaging; lever adapted to operate said spring-pressed device and to be tensioned thereby 5. carrier frame, a toothed supply holder mtatabie thereon, a spring-pressed pawl for said holder, and a thread-tensioning pawl lever adapted to produce a quickened final releasing movern: 01"- the pawl.

In testimony whereof I all signature,

'lfH'GE/AYAS f.- XLSUJE'L

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