US432132A - Coiler for carding-engines - Google Patents

Description

V(No Model.)

G. T. FRANCIS. GOILBR POR GARDING ENGINES &c.

NO- 432.132. Patented July l5, 1890.

Vz/'ness es UNITED` STATES i PATENT Ormes.

GEORGE TAPPAN FRANCIS, OF NEWTON, ASSIGNOR TO THE PETTEE MA- CHINE VORKS, OE NEVTON UPPER FALLS, MASSACHUSETTS.

COILER FOR CARDlNG-ENGINES, &.C.

SPECIFICATION forming part of Letters Patent No. 432,132, dated July 15, 1890.

Application filed January 1'7, 1890. Serial No. 337,253. (No model.)

To a/ZZ whom, it may concern:

Be it known that I, GEORGE TAPPAN ERAN- CIS, of Newton, county of Middlesex, State of Massachusetts, have invented an Improve-` ment in Coilers for Carding-Engines, dac., of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

1o My invention is embodied in a coiler for carding-engines and drawing-frames or for a similar apparatus, and relates mainly to the means for supporting and guiding the feedingin or calender rolls. Various expedients l5 such as spring-pressed or wedging bearingshave been employed for supporting the rolls so as to produce a yielding pressure upon the sliver passing between them, and such expedients, so far as known to lne, have been obzo jectionable and havebeen the cause of considerable annoyance and loss of time and breakage.

In accordance with the present invention one of the pair of rolls works in fixed or stationary bearings,while the other has its bearings on a swinging frame pivoted on an axis parallel with that of the rolls and below the same, so that the force of gravity upon the said frame vand the roll having its bearing 3s therein tends to press theroll toward its mate,

so as to produce the desired pressure upon the sliver passing between them. At the same time the rolls are free to move apart in case a bunch or hard piece comes between them,

3 5 and the roll supported in the swing-ing frame can at any time be swung wide apart from its mate, affording perfect access to both rolls,

which can be easily cleared if the sliver is broken and wound up upon either of them.

4o The shafts of the rolls are provided with gears which mesh together, and the roll turning in fixed bearings is driven positively by a gear,

and the corresponding motion is impart-ed to the other roll through the connecting-gears,

without, however, interfering with the free movement of one roll toward or from the other.

Figure l is a plan view of a coiler embodying this invention, with the cover raised to show the working parts within; Fig. 2, afront 5o elevation thereof, with the cover raised; and

Fig. 3, a transverse section on line .fr Fig. l, with'the cover closed.

The base-piece a, that stands above the can in which the sliver is to be coiled, and the cover I), hinged thereto at a2 and provided 55 with an opening b2, (see Fig. 3,) through which the sliver is introduced, may be of substantially usual construction, and the operative parts contained within said cover are shown as driven by a shaft c, (see Fig. 1,) provided 6o with a spur-gear d, that meshes with a gear c on the revolvingsliver-delivering head ywhich latter is provided with an inclined passage f2, (see Fig. 3,) extending from a point over the middle to a point near the periphery of the said head,as shown,so as to deliver the sliver passing down through said passage f2 in a coil around the interior of the can, all in the usual manner. The sliver is carried from the passage b2 into the passage f2 by a pair of 7o feeding or calender rolls g g2, the shafts of which are provided with gears h h2, which mesh together, the shaft of the roll g being supported in stationary bearings 2'., and being provided with abeveled gear 7c, meshing with 75 a beveled gear k2 on the driving-shaft c,which thus imparts rotary motion to both the rolls. In order that the rolls maybe pressed toward one another, so as to bite upon the sliver passing between them with the desired pressure, 8o and so that they can yield and be forced apart in case a' bunch or particle of hard material should pass between them, the roller g2 is mounted in bearings in a frame m, which is itself pivoted in bearings at n, so as to turn on an axis parallel with those of the rollers g g2. The pivotal axis of the swinging frame m is at one side of and below that of the roller g2, supported in said frame, so that the force of gravity upon the said frame and roller tends 9c to press the roller g2 toward the opposite roller g, and the driving action of the gears f f2 tends to slightly increase this pressure-that is, the natural action of the said gears is to draw the rolls together rather than to throw them apart. The roller g2 is, however, free to yield, and, if required, may be thrown away from the roller g, as shown in dotted lines, Fig. 2, thus widely separating the rolls and leaving each accessible for the purpose of Ioo and a swinging frame Containing bearings for the other roll, the said frame-belng pivoted on an axis at one side of and below the axes of 15 the rolls, substantially as sind for the purpose described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE TAPPAN' FRANCIS.

Vtnesses:

GUY M. COBB, A. B. BARRETT.

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