US1326950A - Tension-evener for yarn-winding machines - Google Patents

Tension-evener for yarn-winding machines Download PDF

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Publication number
US1326950A
US1326950A US301345A US30134519A US1326950A US 1326950 A US1326950 A US 1326950A US 301345 A US301345 A US 301345A US 30134519 A US30134519 A US 30134519A US 1326950 A US1326950 A US 1326950A
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Prior art keywords
tension
yarn
bar
winding machines
evener
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US301345A
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Milton William
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/20—Co-operating surfaces mounted for relative movement
    • B65H59/22—Co-operating surfaces mounted for relative movement and arranged to apply pressure to material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • FIGJII FIG. ll
  • My invention relates to improvementsln yarn winding machines in which a plurahty of threads are unwound oli vertical spools and combined and twisted into a single thicker thread and it consists in an attachment for putting a light intermittent tension on the threads as they leave the inn winding spools so as to prevent the threads from ballooning or snarling before they reach the twisting apparatus, thus giving each thread an absolutely equal tension, tending to produce a perfect twisted yarn.
  • Fig. II is a side elevation of the same showing the pressure bar resting against the upper part of the hollow cores of four unwinding spools and applying equal tenslon to each of their respective threads.
  • Fig. III is an enlarged cross section of the pressure bar showing the construction of same.
  • the object of my invention is an apparatus that shall bring each convolution of thread up against the spindle of the spool against which it is unwound by means of a pressure not strong enough to retard the thread but strong enough to bring each convolution at one point during the process indicate Specification of Letters Patent.
  • A is the pressure bar composed of a semi circular strip of wood (a) carrying a stilfened flap (b) of flannel or other similar substance.
  • Said pressure bar is suspended by means of an adjustable curved lengthen ing bar formed of the parts B and 13 joined together by a thumb screw working in a slot in the usual manner, thus enabling the length of said bar to be adjusted to the size of the spools carrying the yarn to be twisted.
  • This lengthening bar is loosely suspended from a horizontal carrier bar G located above and to the opposite side of the spindle to which the tension is to be applied.
  • the intermittent pressure or tension brought against the unwinding thread is that caused by the gravity or weight of the tension bar, although that could, if necessary, be increased by constructing the lengthening bar of spring material and rigidly connecting it to the horizontal carrier bar C, in which case any required tension could be brought to bear on the unwinding threads.
  • the thread spools D are carried on vertical spindles located in sockets E carried by the bearer bar F in the usual manner.
  • tension bar suspended from the body of a winding machine so as to rest lightly against the top of the stem of one or any number of unwinding spools set in a line
  • said pressure bar being composed of an upper rigid portion carrying a semi-flexible flap 0r feather edge; the Whole being suspended by a single adjustable lengthening bar from a suitable point on the machine so as to act by gravity or by means of the springy nature of the material of which the said lengthening bar is composed substantially as hereinbefore described and illustrated in the drawings.

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  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Description

w. MILTON.. TENSION EVEIIER FOR YARN WINDING MACHINES. APPLICATION FILED JUNE 2.1919.
1,326,950, Patented Jan 6,1920.
FIGJII FIG. ll
WILLIAM MILTON,
OF GUELPH,
ONTARIO, CANADA.
TENSION-EVENER FOR YARN-WINDING MACHINES.
Application filed June 2, 1919.
To all whom it may concern:
Be it known that I, TILLIAM Minion, a subject of his Majesty King George V of Great Britain, residing at Guelph, in the county of Wellington and Province of Ontario, Dominion of Canada, have invented a new or Improved Tension-Eveuer for Yarn-Winding Machines, of which the following is a specification.
My invention relates to improvementsln yarn winding machines in which a plurahty of threads are unwound oli vertical spools and combined and twisted into a single thicker thread and it consists in an attachment for putting a light intermittent tension on the threads as they leave the inn winding spools so as to prevent the threads from ballooning or snarling before they reach the twisting apparatus, thus giving each thread an absolutely equal tension, tending to produce a perfect twisted yarn.
I illustrate my invention by the accompanying drawing, in which- Figure I is a front elevation of my invention showing the pressure bar applying the tension to the thread as it leaves the unwinding spool.
Fig. II is a side elevation of the same showing the pressure bar resting against the upper part of the hollow cores of four unwinding spools and applying equal tenslon to each of their respective threads.
Fig. III is an enlarged cross section of the pressure bar showing the construction of same.
Similar letters of reference similar parts in all the drawings.
If the yarn or thread is pulled rapidly oft the evenly wound spool in a direction in line with the center of the spool, the convolution of the thread will tend to spread or balloon as each coil or convolution is loosened. Said spreading or ballooning in creases with the velocity with which the thread is drawn off the spool.
The object of my invention is an apparatus that shall bring each convolution of thread up against the spindle of the spool against which it is unwound by means of a pressure not strong enough to retard the thread but strong enough to bring each convolution at one point during the process indicate Specification of Letters Patent.
Patented Jan. 6, 1920.
Serial No. 301 .345.
01 unwinding between the spindle and the pressure bar. This intermittent control does not permit of more than one convolution of unwinding yarn being free at the same time and very largely controls the ballooning or spreading of the same.
A is the pressure bar composed of a semi circular strip of wood (a) carrying a stilfened flap (b) of flannel or other similar substance. Said pressure bar is suspended by means of an adjustable curved lengthen ing bar formed of the parts B and 13 joined together by a thumb screw working in a slot in the usual manner, thus enabling the length of said bar to be adjusted to the size of the spools carrying the yarn to be twisted. This lengthening bar is loosely suspended from a horizontal carrier bar G located above and to the opposite side of the spindle to which the tension is to be applied.
It will thus be seen that the intermittent pressure or tension brought against the unwinding thread is that caused by the gravity or weight of the tension bar, although that could, if necessary, be increased by constructing the lengthening bar of spring material and rigidly connecting it to the horizontal carrier bar C, in which case any required tension could be brought to bear on the unwinding threads.
The thread spools D are carried on vertical spindles located in sockets E carried by the bearer bar F in the usual manner.
In operation it will be found that the act of unwinding is retarded at one point "on all the threads operated upon by means of the pressure exerted by the pressure bar A against the hollow core or spindle of the unwinding spool, and as the said pressure bar is suspended or pivoted from only one point it naturally follows that it comes to rest against the spindles with an equal pressure on each, suflicient to prevent any bal looning or snarling of the semi-twisted threads and producing an even resultant yarn when the twisting is completed.
I claim The tension bar suspended from the body of a winding machine so as to rest lightly against the top of the stem of one or any number of unwinding spools set in a line,
said pressure bar being composed of an upper rigid portion carrying a semi-flexible flap 0r feather edge; the Whole being suspended by a single adjustable lengthening bar from a suitable point on the machine so as to act by gravity or by means of the springy nature of the material of which the said lengthening bar is composed substantially as hereinbefore described and illustrated in the drawings.
WILLIAM MILTON. Witnesses:
R. Dorms, W. G. WILLIAMS.
US301345A 1919-06-02 1919-06-02 Tension-evener for yarn-winding machines Expired - Lifetime US1326950A (en)

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US301345A US1326950A (en) 1919-06-02 1919-06-02 Tension-evener for yarn-winding machines

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Application Number Priority Date Filing Date Title
US301345A US1326950A (en) 1919-06-02 1919-06-02 Tension-evener for yarn-winding machines

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US1326950A true US1326950A (en) 1920-01-06

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