US1532572A - Yarn-splicing machine - Google Patents

Description

Patented Apr. 7, 1925.

UNITED STATES PA'IEN'Iv OFFICE.

FRANKLIN W. .'BBEWSTER, 0F CENTRAL FALLS, RHODE ISLAND, ASSIGNOR T0 MAN- 'VILLE JENCKES COMPANY, 0F PAWTUCKET, RHODE ISLAND, A CORPORATION 0F RHODE ISLAND.

YARN-SPLICING MACHINE.

Application led May 27, 1922. Serial No. 564,142.

To aZZ 'whom it may cof/wem.'

Be it known that I, FRANKLIN'VV. BREW- sTER, a citizen of the United States, residing at 87 Hawes St., Central Falls, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Yarn-Splicing Machines; and I do hereby declare the following to be a full, clear, and exact descrip-tion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to machines for splicing yarns which consist of a number of strands twisted together' and its object is to facilitate and quicken the untwisting of the ends of the yarns to permit the strands vto be separated and spliced and the subsequent retwisting o the spliced strands.

` A machine embodying the preferred form of the invention is shown in the aqcompanying drawings in which Fig. 1 is a plan view and Fig. 2 is a front elevation of the machine.

As shown the machine comprises two opposed twister-heads arranged in axial alinement with each other and connected to be simultaneously rotated in opposite directions from a driving shaft which may be selectively driven in either direction through a clutchf'under the control of the operator and arranged to be engaged with either one of two oppositely rotating driving pulleys. AEach or the twister heads comprises a spindle 2 which is mounted in bearings 4 formed on a standard secured to the base plate 8. yihe spindleand bearings are slotted to permit the .yarn to be passed laterally into the axis ofthe spindle and at the inner end of each spindle the slot is closed to a less width than the'idiameter of the yarn, so that the yarn is vwedged and caused to rotate with the spindle. Each spindle' is provided betweenthe bearings 4 with a piniony 12 which is engaged' by a gear 14 mounted in the standard 6 and provided at one side with a groovedl pulley 16. Each pulley is connected by a belt 18 with a puiley 20 secured to a driving shaft 22 which is mounted be* low the base plate. One of the belts 18 is an opened and the other is a crossed belt so that the two opposed twist heads are simultaneously rotated in opposite directions by the rotation of the shaft 22 in a. given direction. The shaft 22 may be driven in either direction at the will of the operator through a clutch 24 keyed to slide on and rotate with the shaft and held normally in mld position between'two driving pulleys 26 by springs 28. The clutch is provided on each s1de with a lug 30 adapted to cooperate with the corresponding lug 32 on the op? ing posts 38 and plates 40 which are forced against the post bythe leaf springs 42 and are provided with inclined 'upper ends to permit the ready insertion of the yarn end in the clip. rlhe untwisted and separated strands of each yarn are held preparatory to the splicing by a series of tension plates 44 which are mounted on a rod 46 at the iront edge of the base plate 8 and are pressed together by a spring 48.

In splicing the ends of two yarns the operator may by manipulation of the gears 14 bring the slots in the spindles into register with the slots in Athe bearin s so that the ends of the yarns may be rea ily introduced into the spindles, the yarns first being threaded with the pigtail guides 50 at the outer ends of the spindles. The belt connections between the gears 14 andthe driving shaft 22 permits each gear and spindle to be rotated in locating the slots in the spindles without rotation of the shaft 22 or the other gear and spindle. After the end of each yarn has been passed into the corresponding spindle its free end is introduced into the cooperating clip, the end of the yarn which passes through the right hand spindle being held by the left hand clip while the end of the yarn which passes through the left hand spindle is held by the right hand clip. After thus introduce ing the ends of the two yarns into yithe twister heads and end holding clips the operator shifts the clutch into engagementwith the pulley 26 which is rotating in the proper direction to drive the twister heads in a direction to untwist the length of yarn extending from the inner ends of the heads to the clips and then releases the lever so that it returns to normal neutral position. The clutch need be held in engagement with the pulley but for an instant 1n order to rotate the heads suiiiciently to untwist the short lengths of thread between the heads and the holding clips. The strands of the yarns having been thus quickly untwisted the operator passes her fingers between the different strands and passes'them down between different pairs of tension disks as indicated at the left in Fig. l, the separated strands leading from the ends of the twister head about a vertical guide wire 52 arranged ncar the inner end of the head and in front of the yarn as it leads from the head to the corresponding clamping clip. The operator also draws the strands of the other yarn in the same way over the other guide wire 52 and introduces the ends of the strands between different pairs of disks 44 in the other strand holder. Single strands are then removed from the strand holder and spliced together between the twister heads by loosely twisting one strand about the other, the twisted portions in different spliced strands being located at dir'- ferent points between the heads. The operator then shifts the clutch in the opposite direction and into engagement with the oppositely rotating pulley, thus simultaneously rotating the opposed twister heads in a direction to twist together the spliced strands. The spliced strands are thus quickly retwisted and upon release of the clutch shifting lever the clutch returns to neutral position so that the automatic rotation of the twister heads ceases. The operator then trims the waste ends and removes the spliced yarns from the twister heads, bringing the slots in the spindles into register with the slots the bearings by manual manipulation of the gears 14 as before.

While it is preferred to employ the specic construction and arrangement of parts shown and described it will be understood that this not essential to the broader fea-- tures of the invention and may be varied or modified without departing therefrom.

What is claimed is: l

1. A yarn splicing machine having, in combination, two opposed longitudinally slotted twister spindles each provided with a pinion, a gear engaging each pinion and provided with a pulley, a driving shaft provided with pulleys connected with the gear pulleys by open and cross belts respectively, and mechanism under the control of the operator for selectively driving the shaft in opposite directions.

2. A yarn splicing machine having, in combination, two opposed twister heads, a

shaft connected to simultaneously rotate the heads in opposite directions, two oppositely rotating driving pulleys, a clutch for connecting either pulley to the shaft, springs for holding the clutch in neutral position, and a lever within reach of the operator for shifting the clutch in either direction against the. force of the corresponding spring.

3. A yarn splicing machine having, in combination, two opposed twister longitudinally slotted spindles each provided with a pinion, a gear engaging each pinion and provided with a pulley, a driving shaft provided with pulleys connected with the gear pulleys by open and cross belts respectively, two oppositely rotating driving pulleys loosely mounted on the shaft, a clutch be tween the pulleys for connecting either pulley with the shaft, vsprings for normally holding the clutch in neutral position between the pulleys, and a manually operated lever for shifting the clutch in either direction.

4. A yarn splicing machine having, in combination, a base plate, two opposed twister heads mounted on the upper side of the plate in axial alinement with each other, a driving shaft mounted on the under side of the plate with its axis parallel to the axes of the heads, driving connections between the shaft and heads for simultaneously rotating the heads in opposite directions, and mechanism under the control of the operator for selectively rotating the shaft in opposite directions.

5. A yarn splicing machine having, in combination, a base plate, two opposed twister heads mounted on the upper side of the base plate and each provided with a pinion, a gear engaging each pinion and provided with a pulley, a driving shaft mounted on the vunder side of the base plate with its axis parallel to the axes of the twister spindles, pulleys on the driving shaft connected with the gear pulleys by open and cross belts, respectively, and mechanism under the control of the operator for selectively driving the shaft in opposite directions.

6. A yarn splicing machine having, in combination, two opposed twister heads mounted in alinement with each other and rotatable in opposite directions to untwist or re-twist yarn held thereby, and a series of tension plates mounted in front of the heads and pressed together by a spring to hold the individual .strands of untwisted yarn.

`FRANKLIN W. BREWSTER.

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