US695100A - Rove-stop mechanism. - Google Patents

Description

NO. 695,")0. Patented Mar. ll, I902. J. FRASER.

ROVE STOP MECHANISM.

(Application filed June 29, 1901.) (No Model.) 2 Shee ts-Sheet I.

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N0. 695,)0. Patent d Mar. ll, I902.

J. FRASER.

BOVE STOP MECHANISM. N (Application filed June 29, 1901.) u (in Model.) 2 SheetsSheet 2 WITNESSES- A TTORNE Y8.

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JAMES FRASER, OF DUNDEE, SCOTLAND, ASSIGNOR TO THE FRASER AUTO- MATIC ROVE-STOP COMPANY, LIMITED, OF DUNDEE, SCOTLAND.

ROVE-STOP MECHANISM.-

SPECIFICATION forming part of Letters Patent No. 695,100, dated March 11, 1902.

Application filed June 29, 1901'. Serial No. 66,499. (No model.)

To ttZZ whom i2; may concern:

Be it known that I, JAMES FRASER, late mill manager, a subject of the King of Great Britain and Ireland, residing at Dundee, Forfarshire, Scotland, have invented certain new and useful Improvements in Rove-Stop Mechanism, (for which applications for patents have been made in Great Britain, No. 3,519, dated the 19th of February, 1901, and No.

7,588, dated the 13th of April, 1901,) of which the following is a specification.

The objects of the invention are improvements in rove-stop mechanism for spinningmachines and it consists, essentially, in the use, in combination with a hackle-gill, of a tumbling or throwing-out weighted or springactuated lever supported in normal working position by a horizontal trigger-rod and leverfittings for throwing the rove or yarn to one side to clearit from the grip of the retaining rollers, and so stop delivery of the rove without stopping the rollers when it breaks on its Way to the flier or other twisting mechanism, and has for its object to simplify the con struction of such mechanism and its applica tion to existing machines, to increase its sensitiveness and render its action more positive and efficient, and also facilitate its manipulation by the operator.

Referring to the drawings which form part of this specification, Figures 1 and 2 are respectively a side sectional View and a front view, without the drawing-rollers, of parts of a spinning-machine fitted with the improved 3 5 rove-stop mechanism; and Fig. 3 is a side sectional View of alighter and different construction. Fig. 4 is a section of the wedge 7 to show its shape. Fig. 5 is a plan, partly in section, of the arrangement shown in Fig. In carrying the said improvements as illustrated by Figs. 1 and 2 into effect or practice the weighted tumbling or throwing-outlever 1 is formed, preferably, of a single piece of metal cast or forged in such a manner that 5 from its lower end, which forms abearing or socket 2 for its pivot-pin 3, it passes upward, first vertically, then in a backward curve behind the retaining- rollers 21 and 22, and finally to the front above them. At its latter part it is preferably reduced tothe form and dimensions of a thin round rod 4 for convenient contact and action on the rove, and at its end the rod 4 carries a weight 5. At or about the bottom of the curved part or otherwise near where the trigger 6 finds its bearing a wedge-shaped projection 7 is formed on the throw-out lever 1 ,havingits apex directed outward and away from such bearing side, said wedge having one face prepared for the point of the trigger 6 to slide upon. The said bearing side has also formed in or upon it asmall notch or notches 8 to permanently retain the trigger 6 in the bearing or upholding position when desired or when the support of the unbroken thread 9 is not available. The oscillating le ver 10, which rests for support on the thread 9 below the drawing- rollers 11 and 12 and carries the trigger 6, horizontally adjustable in the slot 2 1, and a rove-arresting gill 13 on its upper part, is pivoted, preferably, on the same pin 3 which carries the throw-out lever 1 and which is bent at right angles horizontally and reverted for this purpose. This pivot 3 is carried by a light metal frame or plate 14, on whose upperportion a projection 7 5 or lug 15 is formed for receiving a set-screw 16 to act as the support for the throw-out lever 1 on the side opposite to the trigger 6 and to provide for the levers ready and nice adjustment in the balanced or vertical working position. Two such bearing plates or frames 14 for adjacent rove-stops may be mounted with suitable slot-and-screw horizontal ad justments 17 on one principal plate or frame 23, which in its turn is provided with corresponding means for its attachment with vertical adjustment on the stud 18 on the spinning-machine. To facilitate the action of the throw-out lever by lessening the bearing angle of the rove thereupon, as also to simo plify the replacing of the rove after the action of the mechanism, the operation of threading such rove through the usual reciprocating bar 19 above the retaining- rollers 21 and 22 is dispensed with and instead short 5 rods or arms 20 are mounted thereon, having rams-horn loops for the rove or thread at their outer or upper ends.

The action of the improved mechanism is as follows: WVhen the yarn or thread 9 breaks and ceases to support the lower end of the oscillatinglever 10, the latter moves by gravity back on its pivot 3 to the position shown in dotted lines and marked a in Fig. 1 and brings forward the trigger 6 and the rove-arresting gill 13 on its upper part above such pivot. The triggers support beingthus withdrawn from the throw-out lever 1, the latter immediately falls to one side with rapidly-increasing leverage force to the position shown in dotted lines and marked a in Fig. 2 and pushes or withdraws the rove out from be tween the rollers 21 and 22. In so falling the wodge-shaped projection 7, before described, impinges on the now free point of the trigger 6'to force it still farther forward, and thus impel the attached rove-arresting gill 13 positively and forcibly forward into the released row to prevent it being pulled down by the drawing-rollers l1 and 12. The rove is thus automatically but positively stopped until the broken end is repaired at the operators leisure. To readjust the mechanism and effeel: such repair, the operator simply pulls forward the lower end of the oscillating lever 10 to the position shown in dotted lines and marked bin Fig. 1, when the trigger 6 at its upper end first presses on the wedge-piece 7, so as to fully raise the throw-out lever 1, and then falls into the side notch S, which retains it in that position and leaves the operators hands free. The loose rove being rolled back, reentered between the retaining and drawing rollers, and pieced together in the known way, the mechanism is then simply set by pushing back the lower end of the oscillating lever 10 until it is supported by the running thread and is in turn supporting the rove -lever 1 by means of the trigger 6, simultaneously freed from its notch 8. It is to be noted that as the result of the present improvements no further addition to the usual piecing operation is required beyond the pushing backward or forward of the lower end of the oscillating lever 10.

Fig. 3 illustrates a construction suitable for machines where an appliance of lighter construction is more suitable and which dispenses with the wedge-piece 7 and in which a twisted or corrugated wire spring 8 is secured vertically on the frame for the purpose of retaining the horizontal trigger 6 in position when the rove is being pieced and reentered after a break instead of the notches 8, (shown in Figs. 1 and 2,) so that when the oscillating lever 10 is pulled forward at its lower end past its normal working position the trigger part at the top end is caught between the corrugations and held securely, so as to leave the operators hands both free, and is instan tly released after replacing the throwing-out lever by the setting of the oscillating lever in its normal working position. In this construction the eyes of the- levers 1 and 10, which oscillate on the pivot-pin 3, are preferably formed by coiling the wire of which the levers are made around a short tube or sleeve. The action is similar to that described. The unbroken thread 9, bearing on the bent end of the lever 10, upholds the throwing-out lever 1 by means of the trigger 6 bearing on its side. When the thread breaks, the lever 10 falls into the position shown in dotted lines and marked a and the hackle-gill moves forward and engages with the rove, while the lever 1 falls to one side and pushes the rove out from between the retaining- rollers 21 and 22. The piecing and rentering of the rove is efiected as already described.

Having now described my invention, what I claim, and desire to secure by Letters Patent, is-

1. A rove-stop mechanism for spinningmachines consisting of a weighted throw-out lever, an oscillating vertical lever, a sustaining and releasing horizontal trigger-rod and a hackle-gill on the upper end of said oscillating vertical lever substantially as herein set forth. I

2. Rove-stop mechanism for spinning-machines consisting of a weighted tumbling throwing-out lever formed with an angled projection and provided with means for nice adjustment in normal working position, a sustaining and releasing horizontal triggerrod and means for sustaining same while the broken yarn is being pieced and a hackle-gill both on the upper part of a vertical oscillating lever all mounted on the machine-frame and horizontally and vertically adjustable thereon substantially as herein set forth.

3. In rove-stop mechanism for spinningmachines and in combination, a weighted throw-out lever having sustaining devices, an oscillating lever 10 to engage the rove, said lever carrying a horizontal trigger to engage the sustaining devices, the hackle-gill carried on the upper end of the oscillating lever, a plate 14 carrying the pivot for the throw-out lever, a set-screw 16 carried by said plate to act as a lateral support for the throw-out le ver, said plate being adjustable horizontally and a plate 23 carrying the plate 14, said plate 23 being vertically adjustable, substantially as described.

4. In rove-stop mechanism for spinningmachines the combination of the weighted tumbling throwing-out lever 1 formed with the angled projection 7, with the horizontal trigger-rod 6, the hackle-gill 13 and oscillating lever 10 substantially as herein set forth.

5. In rove-stop mechanism for spinningmachines the adjustable devices for carrying the mechanism consisting of the plate 23, the slotted plates 14; and pinching-screws 17, the lugs or projections 15 and set-screws 16 for the nice adjustment of the levers 1 substantially as herein set forth.

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

JAMES FRASER.

Witnesses:

J AS. M. MCWALTER, JAMES G. COOPER.

ICC

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