US1132878A - Speed-controller for carding-engine doffers. - Google Patents

Description

J. FILLING.

SPEED CONTROLLER FOR GARDING ENGINE DOFFER APPLICATION FILED AUG.4, 1914v Patented Mar. 23, 1915.

will! THE NORRIS PETERS CCL. PHOTO-LITHO.. WASHINGTON. D. C

JOHN :PILLING, or BI'IRNLEY, ENGLAND.

SPEED-CONTROLLER Fort oARnING nNGiNn 150mm.

Specification of Letters Patent.

Patented Mar. 23, 1 915.

Application filed August 4', 1914; Serial No; 8'55j062.

To all whom; it may concern: I V

Be'it known that 1, JOHN FILLING, a subject of the King of Great Britain, residing at Burnley, Lancashire, England, have 1nvented a new and useful Improvement in Speed-Controllers for Carding-Engme Doffers, of which the following is a speclfica tion.

This invention relates to certain new and useful improvements in speed controllers for carding engine dofi'ers, and the primary object of the invention is to provide means which automatically acts to restore fast speed of the doffer after or subsequent to the latter having been changed to slow speed, which slow speed is necessary to enable piecing up of the web or sliver upon breaking of the latter.

In carding engines when the web or sliver breaks, the operator usually puts into action mechanism commonly known as a slow motion and which is under manual control of the operator, which slow motion or speed causes the dofl'er to slowly revolve to thereby enable the operator to piece up in the most convenient manner, and to enable the output to remain constant, or at a maximum, 1t 1s necessary to again restore the dofier to fast speed, following the piecing up operation. Should, however, the attendant fall to restore the doffer to fast speed, through negligenes or otherwise, the output of the carding' engine is' correspondingly decreased, the present invention therefore aiming to provide for automatic restoration of the fast speed subsequent to, and at a predetermined period following the reductlon of speed, which period is of sufficient duration to ordinarily allow the attendant to effect completion of the piecing up OPGItItIOIL In the drawingsFigure 1 1s a side elevation of the invention applied to a carding engine, and Fig. 2 is a top view, partly broken away and in section.

The shaft 1 has a hand engaging part or handle 2 whereby the operator may manually turn the shaft so as to move the belt shipper 3 from fast to slow speed and woe versa, for which purpose the shaft has a crank 4' which engages the shipper 3, to move the belts B on the drive pulleys P.

Suitably secured to a stationary part of the frame of the carding engine, is a rigid member '5 which has a cam face 6 which latter coacts with a member 7 that has a cam face 8, the" member 7 being rigidly secured to the shaft 1.

Secured to the-revolving d'ofi'er shafts is a worm 9 which is adapted to mesh with a*- worm wheel 10 that is rigidly secured to the shaft 1. The shaft 1 slides lengthwise, so'

that upon same being given partial rotation,

say one-half a revolution, the coacting cam faces 6 and 8 which are normally in the separated or disengaged position depicted in Fig. 2 of the drawings, will be permitted to I engage, thereby allowing the shaft to move' endwise so asto cause the worm wheel 10 to mesh with the worm 9 for a purpose now to be set forth;

Normally, and when the engine is at fast speed, the worm wheel 10 is held out of en-' gagement with the worm 9,: in which position of the parts the belt shipper is in position for effecting fast speed of the belts B, Should now the attendant have occasion to move the belt shipper to position to effect slow speed of the dofl'er, and consequently of the shaft S, the shaft 1 isgiven partial rotary motion to effect the desired shift of the shipper to position in which the belts are driven at slow speed, which movement I of the shaft causesthe cam faces to engage thereby allowing the shaft 1 to slide lengthwise and in a direction toward the dofifer with the result that. the worm wheel 10' which is carried by the shaft is brought to engage or mesh with the worm 9, whereupon the shaft S being revolved at slow speed, same will, through the worms 9' and 10 effect rotation of the shaft 1, with the result that the latter will, due to the cam faces 6 and. S riding upon each other to their normally separated positions, again restore the. shaft 1 to its normal position, the rotation of the shaft carrying withit the belt shipper 3, which consequently causes the belts B to be again engaged with the fast drive pulley,

whereby the return-from slow to fast speedthe automatic return of the doffer to fast 110.

speed, he may manually rotate the shaft 1, so as to not necessitate Waiting until the shaft 1 is automatically returned, to return the engine to fast speed.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a carding engine, in combination with the dolfer shaft and means to allow drive of the shaft at fast and slow speeds, amanual control rotating upon its longitudinal axis for said means to enable the shaft to be moved at slow speed, and means for rotating and longitudinally shifting said manual control whereby said first means Will be automatically restored to fast speed position at a predetermined period following operation of the manual control to slow speed position.

2. In combination with the doifer of a carding engine, and manual means rotating upon its longitudinal axis to allow selective fast or slow drive thereof, means to rotate and longitudinally shift and automatically return the manual means to fast drive position at a period of determinable duration following the operation of the manual means to slow drive position.

3. In combination with the doffer shaft of a carding engine and a worm thereon, a slow and fast speed drive for said shaft, means to control the drive, a manually operable shiftable and rotatable shaft having a worm rigidly mounted thereon adapted to mesh with the first named worm, whereby to rotate the shaft, a cam on the second shaft, and a stationary cam to engage the first cam, said worms being normally out of engagement and being engaged when the second shaft is manually turned to move the drive from fast to slow, and the second shaft being turned by the action of the worms and longitudinally shifted by the action of the cams when said worms mesh.

4:. In combination with the doffer shaft of a carding engine and a slow and fast speed drive therefor, means to control the drive, a manually rotatable and shiftable shaft, normally disengaged driving means for the manual shaft between same and the doffer shaft to rotate the manual shaft, and means whereby after movement of the manual shaft to slow position same will be automatically shifted upon its rotation to disengage the driving means thereof and to move the drive control to fast speed position.

5. In combination with a carding engine doffer, and means to enable same to be rotated either at fast or slow speed, means turnable upon its longitudinal axis to manually control said first means, and means whereby said manual means will be longitunally shifted and automatically restored to fast drive position at a predetermined period following its movement to slow drive position.

6. In combination with a carding engine doffer, and means to enable same to be rotated either at fast or slow speed, manual means turnable upon its longitudinal axis to control said means, and cam means to automatically restore the manual means to predetermined initial position after actuation thereof.

7. In combination with a carding engine dofi'er and means to enable same to be rotated either at fast or slow speed, means turnable upon its longitudinal axis to control the first means, and means to automatically restore the controlling means to predetermined initial position after manual actuation thereof by longitudinally shifting same.

8. In combination with the dolfer shaft of a carding engine, and means to drive same fast or slow, a normally quiescent turnable and longitudinally shiftable rod which upon turning thereof effects fast or slow drive of the shaft, means to turn said rod from the shaft after the rod has been manually turned to effect slow drive of the shaft and means whereby upon mechanical turning of the rod the latter will be longitudinally shifted so as to be disengaged from the shaft upon expiration of a predetermined period.

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

JOHN FILLING Witnesses ALFRED SUTTHoUsn, ERNALD SIMrsoN MosuLEY.

Copies of this patent maybe obtained for five cents each, by addressing the Commissioner of Patents Washington, D. C.

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