US1565725A - Spindle and rove stopping assembly for spinning frames and like textile machinery - Google Patents

Spindle and rove stopping assembly for spinning frames and like textile machinery Download PDF

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Publication number
US1565725A
US1565725A US41954A US4195425A US1565725A US 1565725 A US1565725 A US 1565725A US 41954 A US41954 A US 41954A US 4195425 A US4195425 A US 4195425A US 1565725 A US1565725 A US 1565725A
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United States
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rove
spindle
rollers
lever
textile machinery
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US41954A
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Fraser Gordon
Fraser Norman
Fraser John
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/18—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material stopping supply only
    • D01H13/182—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material stopping supply only by raising or lifting of one of the drafting cylinders, e.g. by removing of the loading means
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/16—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material
    • D01H13/1608—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements responsive to reduction in material tension, failure of supply, or breakage, of material where the paying-out and take-up stations are stopped at one and the same time

Definitions

  • GORDON FRASER NORMAN FRASER, AND JOHN FRASER, or ARBROATH, SCOTLAND.
  • the subject of this invention is an improved spindle and rove-stopping assembly for spinning frames and like textile machinery socontrived that, in the event of breakage of the yarn thread, the spindle and the rove feed mechanism may be stopped expedi tiously, leaving the operators hands free to perform the operation of piecing-up.
  • the invention consists in an assembly for the purpose indicated comprising a spindle stop, a rove stop and pedal operated means for actuating the spindlestop and the rove-stop concomitantly.
  • Fig. 1 is a part elevation part vertical section showing so much of a spinning frame as is necessary for the understanding of the'invention and Figs. 2 and 3 detail views to a larger scale.
  • FIG. 1 denotes the spindle which is frictionally driven bythe contact of its wharve 2 with a friction disc 3 on an axis at right angles to the axis of the wharve, the spindle being carried by a hinge rod 4 so mounted that by turning it about its axis the wharve may be moved away from or towards the friction disc.
  • 5 denotes a lever, rigidly attached to the lower end of the hing rod 4, and 6 a hinge weight pivoted at 7 which by means of tooth-like projections 6 6 thereon, Fig.
  • engaging the lever 5 is capable of urging the lever 5 in either direction and so applying or relieving the driving pressure at the wharve, it being understood that normally the weight 6 urges the lever 5 in the direction to apply driving pressure atthe wharve.
  • 8 denotes a pedal lever pivoted to the lever 5 at 9, and 10 a lever also pivoted to the lever 5, as at 11, said lever 10 being engageable by the arm 12 of the pedal lever 6 which, when rocked against the stop member 13, tilts the lever 10 and thereby lifts the hinge Weight 6, urging the lever 5 in the direction to relieve the driving pressure at the wharve so that the spindle is stopped.
  • the lever 10 forms an element not only of the spindle stop unit but also of the rove stop unit, as will now be described.
  • a rod 14 Connected to the lever 10 is the lower end of a rod 14- the upper end of which is con.- nected to one arm 15 of a bell-crank lever pivoted at 16.
  • the other arm 17 of the bellcrank lever carries a pin 18 providing in conjunction with the pin 19 fixed to the bracket 20 a rove-nipping device.
  • the bracket 20 is pivoted at 21 on the main bracket 22 and carries also the pivot 16 and the arbor 23 of the upper presser roller 24 co-operating with the continuously driven feed-roller 25.
  • 26 denotes a weighted arm acting on the bracket 20 to urge the roller 24 towards its fellow roller 25.
  • the rove 27 taken from the bobbin 28 passes downwardly through the reciprocating rod 29, between the pins 18, 19, between the fluted rollers 24, 25 and thence by way of the conductor 30 between the lower drawing rollers 31, 32 of which the roller 31 is continuously driven, and thence to the flyer 33. 7
  • the pedal lever functions as a toggle device serving to maintain the spindle wharve 2 disengaged from the friction disc 3, and the roller 24 in retracted position with the nipping device closed.
  • the rove being nipped firmly between the pins 18, 19 while the rollers 31, 32 continue to rotate, is broken at the bite of the rollers 31, 32, the broken end being left lying in the conductor 30 ready for immediate piecing up again below the bite of the rollers 31, 32 when a restart is made by lifting the pedal.
  • the present invention permits of substantial economy, besides assuring other important advantages, will be seen by comparison of previous practice with the practice rendered possible by the invention.
  • a spindle and rove-stopping assembly for spinning or similar frames comprising a spindle, driver therefor, an upper pair of separable rove-feeding rollers, a rove-nipping device above said feeding rollers, a lower pair of rove-drawing rollers, a conductor to said drawing rollers, and pedaloperated connections for disengaging said spindle from said driver and concomitantly therewith closing said nipping device and separating said feeding rollers whereby to cause a break in the rove above said drawing rollers, leaving the rove in said conductor.
  • a spindle and rove stopping assembly for spinning or similar frames comprising a spindle, a driver therefor, an upper pair of r'zeparable rove-feeding rollers, a rove-nipping device above said feeding rollers, a lower pair of rove-drawing rollers, a conduc tor to said-drawing rollers and manually operable means for disengaging said spindle from said driver, closing said nipping device and then moving one of said feeding rollers from its fellow feeding roller.
  • a pair of rove feeding rollers a pair of rove-nipping members above said feeding rollers, a swing bracket carrying one of said feeding rollers and one of said nipping members adapted to swing to move said last named feeding roller towards and away from the other feeding roller, and a lever pivoted to said bracketand carrying the other nipping member and adapted to be rocked on its pivot to move said nipping member towards and away from the first named nipping member.
  • a spindle and rove stopping assembly for spinning or similar frames comprising, in combination, a driver, a spindle movable towards and away from said driver, an upper pa1r of rove feeding rollers, a rove nipping device above said feeding rollers, a lower pair of rove drawing rollers, and connections including a common pedal for moving said spindle away from said driver, closing said nipping device and separating said feeding rollers, whereby the nipped rove is broken by the drawing action of said drawing rollers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Description

Dec. 15, 1925- 1,555.725 G FRASER Er AL SPINDLE AND nova s'ro PPIN G ASSEMBLY FOR SPINNING FRAMES AND LIKE TEXTILE MACHINERY Filed July 7, 1925 2 Sheets-Shoot 1 Dec. 15, 1925. 1,565,725
G. FRASER ET AL srmnu: AND ROVB STOPPING ASSEMBLY FOR srmuma FRAMES AND LIKE TEXTILE MACHINERY Filed July 7, 1925 2 ShBBtS-ShQOt 2 Patented Dec. 15, 1925.
UNITED STATES PATENT, OFFICE.
GORDON FRASER, NORMAN FRASER, AND JOHN FRASER, or ARBROATH, SCOTLAND.
SPINDLE AND ROVE STOPPING ASSEMBLY FOR SPINNING FRAMES AND LIKE TEXTILE MACHINERY.
Application filed July 7, 1825. Se al Nov 41,954.
To all whom it may camera:
Be it known that we, GORDON F nnsnn, NORMAN FRAsEn, and JOHN F nnsnn, all British subjects, and residents of Arbroath,
Scotland, have invented a certain new and useful Improvement in Spindle and Rove Stopping Assemblies for Spinning Frames and like Textile Machinery, of which the following is the specification.
The subject of this invention is an improved spindle and rove-stopping assembly for spinning frames and like textile machinery socontrived that, in the event of breakage of the yarn thread, the spindle and the rove feed mechanism may be stopped expedi tiously, leaving the operators hands free to perform the operation of piecing-up.
Broadly, the invention consists in an assembly for the purpose indicated comprising a spindle stop, a rove stop and pedal operated means for actuating the spindlestop and the rove-stop concomitantly.
A practical construction according to the invention is illustrated in the accompanying drawings in which Fig. 1 is a part elevation part vertical section showing so much of a spinning frame as is necessary for the understanding of the'invention and Figs. 2 and 3 detail views to a larger scale.
Inthe drawings 1 denotes the spindle which is frictionally driven bythe contact of its wharve 2 with a friction disc 3 on an axis at right angles to the axis of the wharve, the spindle being carried by a hinge rod 4 so mounted that by turning it about its axis the wharve may be moved away from or towards the friction disc. 5 denotes a lever, rigidly attached to the lower end of the hing rod 4, and 6 a hinge weight pivoted at 7 which by means of tooth-like projections 6 6 thereon, Fig. 3, engaging the lever 5 is capable of urging the lever 5 in either direction and so applying or relieving the driving pressure at the wharve, it being understood that normally the weight 6 urges the lever 5 in the direction to apply driving pressure atthe wharve. 8 denotes a pedal lever pivoted to the lever 5 at 9, and 10 a lever also pivoted to the lever 5, as at 11, said lever 10 being engageable by the arm 12 of the pedal lever 6 which, when rocked against the stop member 13, tilts the lever 10 and thereby lifts the hinge Weight 6, urging the lever 5 in the direction to relieve the driving pressure at the wharve so that the spindle is stopped.
The lever 10 forms an element not only of the spindle stop unit but also of the rove stop unit, as will now be described.
Connected to the lever 10 is the lower end of a rod 14- the upper end of which is con.- nected to one arm 15 of a bell-crank lever pivoted at 16. The other arm 17 of the bellcrank lever carries a pin 18 providing in conjunction with the pin 19 fixed to the bracket 20 a rove-nipping device. The bracket 20 is pivoted at 21 on the main bracket 22 and carries also the pivot 16 and the arbor 23 of the upper presser roller 24 co-operating with the continuously driven feed-roller 25. 26 denotes a weighted arm acting on the bracket 20 to urge the roller 24 towards its fellow roller 25.
The rove 27 taken from the bobbin 28 passes downwardly through the reciprocating rod 29, between the pins 18, 19, between the fluted rollers 24, 25 and thence by way of the conductor 30 between the lower drawing rollers 31, 32 of which the roller 31 is continuously driven, and thence to the flyer 33. 7
It will be seen that the operation of the pedal lever 8 which stops the spindle pulls down the rod 14, rocking the bell- crank lever 15, 17 and causing the rove first to be nipped between the pins 18, 19, the closing of the rove nipping device being followed by conjoint .movement of the lever 15, 17 and bracket 20 upon the. pivot 21 whereby the roller 2 is retracted a short distance from the roller 25, in consequence of which the feed of the rove is stopped.
The pedal lever functions as a toggle device serving to maintain the spindle wharve 2 disengaged from the friction disc 3, and the roller 24 in retracted position with the nipping device closed.
The rove, being nipped firmly between the pins 18, 19 while the rollers 31, 32 continue to rotate, is broken at the bite of the rollers 31, 32, the broken end being left lying in the conductor 30 ready for immediate piecing up again below the bite of the rollers 31, 32 when a restart is made by lifting the pedal.
Particular attention is called to the circumstance that the rove is nipped between the pins 18, 19 before it is released by the upper rollers 24:, 2'5 so that th l B Will not I 11111 through between the lower rollers 31, 82 without being drawn. Conversely, the rove is not released by the nipping device 18, 19 until after it is fully gripped by the rollers 2 25.
The present invention permits of substantial economy, besides assuring other important advantages, will be seen by comparison of previous practice with the practice rendered possible by the invention.
In ordinary spinning frames having no rove stop motion in the event of breakage of the yarn about the spinning spindle, the rove coming down from the bobbin 28 is belt- ;lorked out between the upper rollers by the operators fingers and flung over the reciprocatory rod 29. lVhen an end is to be pieced,
-it has to be fed down through the rollers again by hand and bits plucked off-which is waste-before being led into the conductor 30 to be finally pieced on to the end of yarn led up from the spinning bobbin, the piecing-up operation being one entailing considerable risk of accident and necessitating not a little skill on the part of the operator whose attention is partly taken up by the retaining rollers.
The waste in question is entirely avoided by the invention. Further, as both hands of the operator are left free to do the piecing up operation below the lower drawing rollers, the piecing up operation is much simplilied and capable of perforn'iance without the same necessity for" skill and experience as heretofore.
What we claim is:
1. A spindle and rove-stopping assembly for spinning or similar frames comprising a spindle, driver therefor, an upper pair of separable rove-feeding rollers, a rove-nipping device above said feeding rollers, a lower pair of rove-drawing rollers, a conductor to said drawing rollers, and pedaloperated connections for disengaging said spindle from said driver and concomitantly therewith closing said nipping device and separating said feeding rollers whereby to cause a break in the rove above said drawing rollers, leaving the rove in said conductor.
2. A spindle and rove stopping assembly for spinning or similar frames comprising a spindle, a driver therefor, an upper pair of r'zeparable rove-feeding rollers, a rove-nipping device above said feeding rollers, a lower pair of rove-drawing rollers, a conduc tor to said-drawing rollers and manually operable means for disengaging said spindle from said driver, closing said nipping device and then moving one of said feeding rollers from its fellow feeding roller.
3. In a spinning or similar frame a pair of rove feeding rollers, a pair of rove-nipping members above said feeding rollers, a swing bracket carrying one of said feeding rollers and one of said nipping members adapted to swing to move said last named feeding roller towards and away from the other feeding roller, and a lever pivoted to said bracketand carrying the other nipping member and adapted to be rocked on its pivot to move said nipping member towards and away from the first named nipping member.
l. A spindle and rove stopping assembly for spinning or similar frames comprising, in combination, a driver, a spindle movable towards and away from said driver, an upper pa1r of rove feeding rollers, a rove nipping device above said feeding rollers, a lower pair of rove drawing rollers, and connections including a common pedal for moving said spindle away from said driver, closing said nipping device and separating said feeding rollers, whereby the nipped rove is broken by the drawing action of said drawing rollers.
In testimony whereof we have si ned our names to this specification.
GORDON FRASER. NORMAN FRASER. JOHN FRASER.
US41954A 1925-07-07 1925-07-07 Spindle and rove stopping assembly for spinning frames and like textile machinery Expired - Lifetime US1565725A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432284A (en) * 1943-10-14 1947-12-09 Haytock Silk Throwing Company Creel
FR2424343A1 (en) * 1978-04-24 1979-11-23 Marzoli & C Spa DEVICE FOR INDEPENDENTLY STOPPING A WORKSTATION OF A SPINNING TRADE IN THE EVENT OF A WIRE BREAKAGE AND REPORT THIS BREAKAGE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432284A (en) * 1943-10-14 1947-12-09 Haytock Silk Throwing Company Creel
FR2424343A1 (en) * 1978-04-24 1979-11-23 Marzoli & C Spa DEVICE FOR INDEPENDENTLY STOPPING A WORKSTATION OF A SPINNING TRADE IN THE EVENT OF A WIRE BREAKAGE AND REPORT THIS BREAKAGE

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