US2620517A - False twister - Google Patents

Description

Dec. 9, 1952 o. w, sc u s 2,620,517

FALSE TWISTER Filed June 2, 1950 INVENTOR OTTO W. SCHLUMS Patented Dec. 9, 1952 FALSE TWISTER Otto W. Schlums, Whitinsville, Mass, assignor to Whitin Machine Works, 'Whitinsville, Mass-., a a corporation of Massachusetts Application June 2, 1950, Serial No. 165,721

'7 Claims.

This invention relates to false twisters or condensers of the kind in which a sliver is caused to pass between a pair of opposed discs having their proximate faces disposed in converging planes and arranged to be rotated in opposite directions. The basic principle of operation is very old, a condenser of this type being shown, for example, in Patent No. 143,020, dated September 23, 1873.

The object of the invention is to provide a false twister or condenser of that type which is embodied in a simple, compact unit and so organized that the discs are more readily driven, as from conventional rolls or the like, whereby the device is readily adaptable to the needs of the system to which it is applied.

The invention will be readily understood from the following description and accompanying drawings of a preferred form. In the drawings:

Fig. 1 is a side elevation of the preferred form of the invention shown in relation to a pair of driving rolls; and

Fig. 2 is a plan view of the same.

In this preferred form, the body of the unit consists of a suitable mounting bracket l shown as recessed at 2 to fit what may be assumed to be a traverse bar 3 to which the unit may be secured, as by clamp 4 and bolt 5.

Upstanding from the bracket and pivoted to it on a common horizontal axis 6 are two arms I, 8 which are located between two bracket lugs, of which the one on the near side is marked 9 in Fig. 1. The face l of the bracket between these lugs serves as a stop to limit the movement (counter-clockwise as viewed in Fig. 1) of the arms land 8 about their pivots, the arms being biased in such counterclockwise direction by identical springs, of which the one on the near side is marked II in Fig. l.

Projecting forwardly from the upper ends of the arms 1, 8 are extensions I3, 14 which incorporate journal supports for the condenser discs l5, Hi.

In common with condensers of this twin-disc type, the discs 15, I 6 are mounted with their proximate faces disposed in substantially vertical converging planes. However, their journal supports, and hence their axes, are vertically offset. Also, the peripheries of the discs are oppositely coned, so that portions of the peripheries are substantially parallel or lie in a common tangent plane. In this instance, the discs are coned in directions such that their proximate faces are of greater diameter than their remote faces; and, as indicated, the peripheries of the 2 discs are knurled or otherwise roughened. 3 this means the false twister is readily-adapted to be driven by the direct engagement of suitable drivers with the peripheries of therespective discs.

As shown, the device may be mounted adjacent a pair of upper and lowerdriven rolls H, I 8, whose axes are in the same or substantially the same vertical plane and whose peripheries engage, respectively, the upper and lower discs.

By positioning the unit close enough to the rolls to force the arms 7, 8 back somewhat from their limit position, the discs are maintained in close engagement with their driving rolls by their respective springs. Both the driving and traversing of the device are thus greatly simplified.

As indicated, the proximate faces or the marginal portions I 9, 20 of the proximate faces of the discs are grooved or otherwise surfaced to enable the oppositely rotating discs to impart the conventional false-twisting action to a strand or sliver as it passes between them.

In the light of the foregoing illustrative description of what will be understood to be no more than the preferred form of the invention, the following is claimed:

1. A false twister comprising in combination: a mounting bracket; a pair of arms pivotally mounted on the bracket; stop means carried by the bracket; springs urging said arms toward engagement with the stop means; vertically offset journal supports carried by the respective arms; and opposed disc members mounted one on each of the journal supports and with their proximate faces arranged in substantially vertical converging planes, the peripheries of the said discs being oppositely coned, whereby predetermined portions of the peripheries of the discs have a common tangent plane.

2. A false twister comprising in combination: a mounting bracket; a pair of arms pivotally mounted on the bracket; stop means carried by the bracket; springs urging said arms toward engagement with the stop means; vertically offset journal supports carried by the respective arms; and opposed disc members mounted one on each of the journal supports and with their proximate faces arranged in substantially vertical converging planes.

3. A false twister comprising the combination with a pair of opposed disc members having their proximate faces arranged in substantially vertical converging planes, of vertically offset journal supports for the said discs, the peripheries of the said discs being oppositely coned, whereby predetermined portions of the peripheries of the discs have a common tangent plane, and bracket means supporting the journal supports with freedom for relative movement toward and from said common tangent plane.

4. A false twister comprising a bracket; a pair of supports mounted on the bracket on a common horizontal pivot axis; vertically offset journal means carried by each of said supports; and two opposed disc members mounted one on each of the journal means and with their proximate faces arranged in substantially vertical converging planes.

5. A false twister comprising a bracket; a pair of supports mounted on the bracket with freedom for relative horizontal movement in substantially parallel vertical planes; vertically offset journal means carried by said supports; and two opposed disc members mounted one on each of the journal means and with their proximate faces arranged .in substantially vertical converging planes.

.6. .A false twister comprising the combination of a pair of opposed disc members overlapped nfiset means rotatably supporting the said discs,

the peripheries of the said proximate faces of the discs being oppositely coned, whereby predetermined portions of the peripheries of the discs have a common tangent plane.

7. A false twister comprising the combination of a pair of opposed disc members overlapped throughout the major part of their proximate faces and with such faces arranged in substantially vertical converging planes, and vertically ofiset means rotatably supporting the said discs.

' OTTO W. SCI-ILUMS.

REFERENCES CITED The following references are of record in the file :or this patent:

UNITED STATES PATENTS "Number Name Date 143,020 Lucas Sept. 23, 1873 745,625 Jerrerns Dec. 1, 1903 2,522,332 Abbott Sept. 12,, 1950 "2,523,338 "Snider Sept. 26, 1950 FQREIGN PATENTS Number Country v Date 324,540 GreatBritain Jan. 30, '198-0

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