US2390703A - Yardage control mechanism - Google Patents

Description

Dec. 11, 1945. J. H. GARROTT YARDAGE CONTROL MECHANISM Filed Dec. 17, 1943 3 Sheets-Sheet 1 INVENTOR I John Gar/"off ATTO RN E Dec. 11, 1945.

J. H. GARROTT YARDAGE CONTROL MECHANISM s Sheets-Sheet 2 Filed Dec. 17, 194:5

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a Y Illlll 2/ @HHHIHH INVENTOR John H Gan-0 f1 Dec. 1945. J. H. GARROTT 2,390,703

YARDAGE CONTROL MECHANISM Filed Dec. 17, 1943 3 Sheets-Sheet 3 ATTORN as Patented Dec. 11, 1945 2,396,703 YABDAGE CONTROL MECHANISM John H. Garrott, Bloomfield, N. J., assignor to The Clark Thread Company, Newark,

N. J., a

corporation of New Jersey Application December 17, 1943, Serial No. 514,600

Claims. ion. 242-39) The object of the invention is an improved yardage control mechanism for yarn winders.

The customary method of controlling the operoi yern winders to bring the spindle drive when desired yardage has been wound nvclved the use of some sort of feeler bearing n the package and acting to trip a spring-operreiense mechanism to disengage a, clutch drive the diameter of the package has built up to a predetermined size, Among the objections to such types of device may be mentioned the ciificulty of obtaining, and maintaining, ecs'te control or the actual yardage wound.

According to the present inventlonthe winder control is effected not by'mechanism dependent upon size of the wound package in terms of its diameter but by release mechanism responive to a predetermined number of revolutions of e spindle and such manner as to hold the ysrdege s ntent of the packages within extremely is of variation, Also, the invention control mechanism which is simple .islly fool-proof, and which requires no g or that the operator perform an other standard operations in supervising the macs. 1 sheen and other objects and advantages of the invention will be apparent-from the followmg description and the accompanying drawings in which 9. preferred form of the invention is shown applied to a Universal winder.

In the drawings, Fig. 1 is an elevation of so much of the winder as is necessary to illustrate the application of the invention, the parts being in the running position; Fig. 2 is a, similar view but in the "at res position; Fig. 31s a plan view showing, among other things, the drive take-oft for the control mechanism; and Figs. 4 and 5 are broken views, in elevation, showing certain of the elements of Figs. 1 and 2 in different positions or stages of operation.

Being of familiar construction, only so much of the winder will be to an understanding of the invention. As will be recognized, the illustrated winder includes a. spilldie I and drive shaft 2, rotation of the spindle and shaft being controlled by handle 3 which is rotatable from the Fig. 2, or at rest" position, to the Fig. 1, or running position, to start the winder. The handle rotates on the axis of a shaft 4 and is normally locked in its running position by suitable-detent mechanism consisting or a latch piece 5 on arm 6, which latch piece is adapted to engage behind the cooperating latch or shoulder I formed on an upstanding portion of the arcuate arm generally designated 8. As usual, this am is pivotall mounted at 9 and biased to hold the latch piece and shoulder in en a ement to lock the handle and hence the associated winder I ve in the running position described as is necessary positions of the cam (Fig. 1). When the detent mechanism is released the winder (including spindle l and drive shaft 2) is brought to rest by the action of the customary spring-relieved clutch.

in Fig. l the path of the yarn id over wide ii and under drop wire 2 to the spindle also be recognized as of standard construction.

According to the preferred form of the invention there is provided what for convenience will be designated a timer wheel, which consists of any appropriate rotary member so geared to the winder as to make exactly one revolution during the winding of a complete package. "in the ill traced form the timer wheel consists of u psir of spaced discs l3 carried on c hub is which is itself mounted on u shaft i5. Also mounted on the shaft and appropriately locked to the timer wheel to drive the same is 2?. gear 5%.

required slow drive to the timer wheel is taken ofi shaft 2, "through chain 2? to shaft from Worm ill on that shaft to sheila is through worm wheel from sheila all through wcrm to worm wheel 23 on shaft 2d; and from pinion 25 on that shaft to see:- i 6.

En accordance with the stated object, this gear train is selected to effect one revolution of gear ill and the timer wheel) during the calculated number of revolutions of spindle l necessary to wind package containing the desired yardage. in this connection it will be noted that shaft l5 on which the timer wheel u t is mounted, is supported in a bracket 26 which is adjustsbly mounted on a frame member 21, so that different size gears can be substituted for gear I6 to secure the required single turn of the timer wheel for different numbers of spindle turns as may be required.

Mounted on the timer wheel is a. cam 28 which is adapted through suitable means to effect the release of the detent mechanism at the conclusion of awinding operation and thereby stop the winder.

In' this preferred form the cam is located between discs l3 and is pivotall mounted on'a stud 29 with freedom for limited movement relatively to the discs. The extent of movement permitted the cam is determined by the engagement of its inner edge with hub II, the dotted and full line in Fig. 5 indicating the extent of this movement.

The means through the detent mechanism in-- .cludes an actuating member in the form of a rod. 30 supported in a bracket 31 secured to the outer end of arcuate arm 8. The upper end of the rod is bent over .so as to overlie the timer wheel and,

As above'stated, Fig. 1 shows the parts in the which the cam operates to unning position, the timer wheel rotating in the direction of the arrow; and, as such rotation continues, the cam engages roller 32 and forces rod 30 upwardly, thereby raising arcuate arm 8 and disengaging the detent mechanism. Thereupon the winder drive is automatically disengaged by the usual spring, clutch mechanism, handle 3 and its associated parts assuming the position shown in Fig. 2, and the spindle and drive shaft 2 coming to rest.

Referring more particularly now to Figs. 4 and 5, the former view illustrates the approximate position of the cam and roller at the instant that As the latch piece -5 continues its movement it wipes across the face 34, rotating about the axis of shaft 4 in an are which causes it to cam slightly still higher position than that venient means the cam is suitably biased so that as soon as the roller is raised out forward about its pivot from of its path it moves the dotted to the In the present inwheel is free to start, and complete, another full revolution before the cam again engages the roller.

Thus, by the foregoing or equivalent means, the yardage control mechanism is rendered fully autonot only is no manual resetting required but has not been described; but, as will be observed. the drop wire control and .the yardage control, though both acting on or through arcuate arm 8,

operate independentlyand without effect upon each other.

The following is claimed:

1. In a yarn winder having detent mechanism.

adapted to disengaged to stop the winder, the combination of a from said first-mentioned means.

2,390,7os v responsive to the operation of said release means to move said member out of the path of said cam.

' 3. The combination of claim .2 in which the cam is mounted on the timer wheel with freedom for limited movement relatively thereto and is biased to move past the said member when the latter is moved out of the path of said cam.

4. In a yarn winder having detent mechanism adapted to be disengaged to stop the winder, the combination of a pair of spaced discs geared to the winder to make one revolution during the winding of a complete package, a cam mounted with freedom for limited movement relatively to the discs in the space between them and protruding beyond the periphery of the discs, and detent release means including a member overlying said discs in the path of the cam. y 5. In a mechanism for the purpose described, the combination of a latch, an actuating member therefor, means for moving saidactuating member to a position to cause the release of said latch, and means responsive to therelease of the latch to disengage said first-mentioned means from the actuating member.

6. In a mechanism for the purpose described, the combination of a latch, an actuating member therefor, cam means for moving said actuating member to a position to cause the release of said latch, and means responsive to the release of the latch to move the actuating member relatively to the cam.

7. In a yarn winder having detent mechanism adapted to be disengaged to stop the winder, the combination of a timer wheel geared to the winder, detent release means, and a cam mounted on the timer wheel to rotate therewith and with freedom for limited movement relatively to the wheel, said release means including a member adapted to be engaged by said cam.

8. In a mechanism for the purpose described,

the combination of a timer wheel, a cam associated therewith, a latch, a latch-release member located in the path of the cam and adapted to ride the cam surface to a position to release the latch, and means responsive to the release of the latch adapted to move said member surface.

position, a latch, a cated for engagement by the cam when the latter is in its actuating position, and means responsive to the release of the latch by said memmoving said actuating member in the same direction and to another position following the operation of said to completely disengage said actuating member 1 JOHN H. oanao'rr.

clear of the cam first-mentioned means, thereby

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