US2274600A

US2274600A - Tubular knit fabric singeing machine

Info

Publication number: US2274600A
Application number: US383020A
Authority: US
Inventors: Hanes Spencer Booe
Original assignee: P H HANES KNITTING CO
Current assignee: P H HANES KNITTING CO
Priority date: 1941-03-12
Filing date: 1941-03-12
Publication date: 1942-02-24
Anticipated expiration: 1959-02-24

Description

Feb; 24, 1942. HANES 2,274,600-

TUBULAR KNIT FABRIC SINGEING MACHINE Flled March 12 1941 s Sheets-Sheet 1 Spencer 5. Holmes m @6401 Feb. 24, 1942.

s. B. HANES TUBULAR KNIT FABRIC SINGEINGr MACHINE I5 Sheets-Sheet 2 .Filed March 12, 1941 Feb. 24, 1942. s HANES 2,274,600

TUBULAR KNIT FABRIC SINGEING MACHINE Filed March 12, 1941 3 Sheets-Sheet 5 Patented Feb. 2 4, 1942 umreo STATES PATENT o FICEQ v .Z.,2'74,60i'l TUBULAR KNL'i'X FABRIC SINGEING CHINE Spencer Booe Hanes, Winston-Salem,'N. 0., assignor to P. H. 'Hanes Knitting Company, Winston-Salem, N. 0., a corporation of North Carolina Application March 12, 1941,- Serial No. 383,020

, pipe, the fabric passesover a cuff 8 which supports the converging or receiving end 9 of a 22 Claims.

chine of the character statedembodying' novel means for spreading the tubular fabric at the position of the flame so that the flame will effectively reach and singe the interstices in. the fabric loops and wales.

Another object of the inventionis to provide a machine of the character stated inwhich; is

I included novel means for centering lthe qflame source with relation to the traveling :fabric.

Another object of the invention is to' p-rovide a machine of the character stated-inwhich is included a flame shield insertable .betweenwthe flame source and the fabric whenever'thewmachine is brought to rest and automatically withdrawable from its fabric shielding positioneach time the machine is set into motion.

Another object of the invention is to provide a machine of the character stated including novel means for eliminating fire hazard and including a fire quenching spray and a set of combined fire snufflng and fabric drawing rolls.

With the above and other objects in view which will more fully appear, the nature of the'invention will be more clearly understood by following the description, the appended claims, and the several views illustrated in the accompanying drawings.

In the drawings:

Figure 1 is a side elevation illustrating the invention.

Figure 2 is a plan view. I Figure 3 is a verticalcross-sectiontaken on the line 3-3 on Figure 1.

Figure 4 is a horizontal section taken through the axis of the shiftable shieldsleeve.

cylindrical wire skeleton spreader frame II] which is surrounded by a circular gas burner II.

The jet apertures l2 in the circular burner II are directed inwardly andreardwardly at, an

angle with respect to the direction of feeding movement of the fabric. The jet apertures are so positioned because the forwardly moving knitted "fabriccarries an air current with it in ;the direction of travel. thereof, and directing the flame jets slightly counter to the direction of travel of the fabric this air current causes the flame jets to become substantially perpendicular to the center of the burner, thereby to more efficiently contact and singe vthe traveling fabric. By reason of the provision of the skeleton spreader 9, III, the greatest possible spread of the tubular knitted fabric is attained at the point at which the singeing flame comes into contact with it so that-the flame Will blow-inc the fabric in such a manner as to get to the bottoms of the interstices or crevices or the lowermost points of the wales or loops in such fabric. The circular burner .II is supported on arm extensions I3 terminating in supporting feet I4 which are longitudinally slotted, as at IE, to =receive zupstanding guide pins I6. The pins project upwardly from side frame brackets ll supported, as at I8, on vertically adjustable blocks I9. -The bracket-IT at one side has an extension IO-equipped with a threaded bore in which an adjusting hand screw 2| is operable. ,end of thisscrew is held captive in the adjacent burner ring supporting foot I4 and it will be The free obvious that by manipulating the'hand screw 2| a measure of lateral adjustment of the position of the burner ring can beeifected so as to perfectly center, the same with respect to the traveling fabric.

. Gas is supplied to the burner ring I I .through a gas supply pipe22 controlled by a valve 23, and

-. air is supplied through a pipe 24 equipped with a Figure 5 is a fragmentary plan View showing a fragment of tubular knitted fabric stretched over the skeleton spreader frame. I

In the example of embodiment of the invention herein somewhat diagrammatically illustrated, the tubular knit fabric 5 is introduced into themachine over a pipe or turning'head 6 between opposedfeed rolls 1. In passing fromthe controlvalve 25, both

pipes

22 and 24 delivering into a,supply or mixing manifold 26 which preferably is ..disposed vertically and-connects with .the burner ring 'II in the manner best illustrated in'Figures 1 and3 of the drawings.

In order to provide for vertical adjustment of ,the burner ring I I so as to suitably align it with j the traveling fabric, the side blocks I9 are vertically-adjustably mounted on frame standards 21, and a vertically disposed captive screw 28 threads through a-bore in each block' I9 and is "connected by abevel gear. couple-29 with a cross shaft having hearing, as at 3 I, in the standards 2'! and equipped with a hand wheel 32. It will be obvious that by turning the hand wheel and rotating the screw 28, upward or downward movement can be imparted to the blocks l9 and the burner ring H supported thereby.

In order to prevent burning of the tubular fabric should operation of the machine be discontinued while the ring burner II is functioning, there is provided a flame shielding sleeve 33 which is shiftable into and out of shielding position within the burner ring. The sleeve 33 has its ends flared, as at 34, and is equipped with an The sleeve is longi--;

asbestos covering band 35. tudinally-slidably mounted-as at 36, and has slot and pin connection at 31 with a shifter lever 38 pivotally mounted, as at 39, upon one of the side frame brackets I1. It will be obvious that by manipulating the lever 38 the sleeve can be moved between effective and ineffective positions tion of the machine by sponge rubber draw rolls 40 which are rotatably supported in bearings 4| on a supporting frame 62 which also supports a motor 43, the drive shaft of which is connected by pulley and belt connections 44 with a driver shaft 45 also rotatably supported on the frame and in turn connected by adjustable belt and pulley connections 46 with one of the draw rolls 40.

A clutch equipment 4? is provided on the drive shaft 45 and is subject to manipulation by a shifting lever 48 pivoted, as at 49, on the machine frame and link-connected, as at '59, with the shield sleeve. shifting lever 38 hereinbefore referred to. By reason of these connections, each time the clutch is shifted to discontinue operation of the machine, the shifter lever 33 will be moved to effect a shifting of the shield sleeve from the ineffective position illustrated in dotted lines in Figure 2, to the effective or flame shielding position illustrated in full lines in Figure 2.

Just in advance of the draw rolls 40, the singed fabric passes between spaced guides 5| mounted on a reversely threaded guide adjusting screw 52 which is rotatable in suitable bearings 53 supported on the machine framing. The screw is equipped with a hand wheel 54, and by turning this hand Wheel the spaced relation of the guides 5| can be altered at will.

It will be obvious that by provision of the shiftable shield sleeve 33, destructive burning of the fabric incident to machine stoppage is avoided, and means are provided for additionally guarding against fire hazard. For this purpose upper and lower steam spray pipes 55 are provided just in advance of the draw rolls t0, and the singed fabric passes between these pipes and is subjected to steam spray which will extinguish any smoldering fabric portion. The fire hazard is additionally guarded against by provision of the draw rolls 4!] which have a snuffing effect which will augment the smolder extinguishing effect of the spray pipes. Steam is supplied to the pipes 55 through a supply pipe 56 equipped with a control valve 51, and a collecting trough 58 is pro vided beneath the pipes for collecting condensadelivery rotor 59, the singed fabric falls into a collecting basket or truck 52.

In the foregoing description, there is disclosed a machine or apparatus capable of efiiciently singeing constantly traveling tubular fabrics. In this machine, the fabrics are spread so that a very efficient singeing is assured, and means are provided for practically eliminating fire hazard.

It is of course to be understood that the details of structure and arrangement of parts may be variously changed and modified without departing from the spirit and scope'of my invention.

I claim:

1. In a machine of the character described, means for continuously feeding a tubular knitted fabric, means circular in transverse section and effective for spreading the traveling fabric to lay open the knit mesh thereof, and a circular gas burner disposed concentrically with respect to the axis of the spreading means for directing open flame into the spread mesh of said traveling fabric.

2. In a machine of the character described, means for continuously feeding a tubular knitted fabric, means for spreading the traveling fabric to lay open the knit mesh thereof, a circular gas burner for directing open flame into the spread mesh of said traveling fabric, and means for adjusting the burner vertically and horizontally to place its center with relation to the center of the traveling fabric.

3. In a machine of the character described, means for continuously feeding a tubular knitted fabric, means for spreading the traveling fabric to lay open the knit mesh thereof, and a circular gas burner for directing open flame into the spread mesh of said traveling fabric, said burner having flame jet emitting orifices therein directed inwardly toward the traveling fabric and augularly in a direction opposite the direction in which said fabric is traveling.

4. In a machine of the character described, means for continuously feeding a tubular knitted fabric, means for spreading the traveling fabric to lay open the knit mesh thereof, means for singeing the traveling fabric at the place at which it is spread, and means automatically operable to shield the fabric from the singeing means each time operation of the fabric feeding means is discontinued.

v5. In a machine of the character described, means for continuously feeding a tubular knitted fabric, means for spreading the traveling fabric to lay open the knit mesh thereof, a circular gas burner for directing open flame into the spread mesh of said travelingfabric, and a flame shielding sleeve surrounding the traveling fabric and automatically shiftable into position for shielding the fabric from burner flame each time operation of the fabric feeding means is discontinued.

6. In a machine of the character described, means for continuously feeding a tubular knitted fabric, a circular gas-burner for directing open flame into-the mesh of *said traveling fabric, a flame shielding-sleeve surrounding the traveling fabricgand means, forshifting the sleeveL longitudinally, toselectively;position it between 1 the fabricand thelgburner in -fabric shielding position or awayfromsaidburner to exposethe .fabric: to

flame emitted from the burner.

7. In a machine of the character. described,

means for continuousl-y'feeding a-tubular knitted I fabric, acircular gas: burner for, directing, open fiameinto themeshgof tsaid traveling fabric, and a flame shielding sleeve surrounding the traveling fabric and automatically shiftable into position for shielding the fabric from burner flame each time operation of the fabric feeding means is discontinued.

8; In a machine of the-character described, means for continuously feeding a tubular knitted fabric, means for spreading the traveling fabric to lay open the knit mesh thereof, and means for singeing the traveling fabric at the place at which it is spread, said spreading means comprising a skeleton frame composed of circumferentially spaced longitudinal rods and including a. tapered receiving nose portion.

9. In a machine of the character described, means for continuously feeding a tubular knitted fabric, means for spreading the traveling fabric to lay open the knit mesh thereof, and means for singeing the traveling fabric at the place at which it is spread, said feeding means including draw rolls disposed beyond the spreading means and effective to snuff out fabric smolder.

10. In a machine of the character described, means for continuously feeding a tubular knitted fabric, means for spreading the traveling fabric I ,to lay open the knit mesh thereof, means for travel; guides "disposed. adj acent. lsaid rolls and means for varying the. spacingof saidguidessingeing the travelingzfabric at 'the placecat which it, is spread, said. feeding "means including draw;

rolls disposed beyondthe- 'spreading meansand effective to snuff out fabric smolder, a drag rotor disposed beyond the draw rolls and over which the fabric passes, and a shield for supporting singeing the traveling fabric at the place at which 4 it is spread, and spray means disposed beyond the spreading means and effective to extinguish fabric smolder.

11. In a machine of the character described, means for continuously feeding'a tubular knitted fabric, means for spreading the traveling fabric to lay open the knit mesh thereof, means for singeing the traveling fabric at the place at which it is spread, said feeding means including draw rolls disposed beyond the spreading means and effective to snuff out fabric smolder, and spray means disposed adjacent said rolls and efiective to extinguish fabric smolder.

12. In a machine of the character described,

means for continuously feeding a tubular knitted fabric, a circular gas burner for directingopen flame into the mesh of said traveling fabric, a

flame shielding sleeve surrounding the traveling fabric, means for shifting the sleeve longitudinally to selectively position it betwenthe fabric and the burner in fabric shielding position or away from said burner to expose the fabric to flame emitted from the burner, said feeding means including draw rolls, power means for driving said rolls, clutch means shiftable for starting or stopping operation of said rolls, and means actuated each time said clutch means is shifted for moving said sleeve shifting means to effectively place or displace the sleeve accordingly as said rolls are stopped or started.

13. In a machine of the character described, means for continuously feeding a tubular knitted fabric, means for spreading the traveling fabric to lay open the knit mesh thereof, means for singeing the traveling fabric at the place at which it is spread, said feeding means including draw rolls disposed beyond the spreading means and effective to snuff out fabric smolder, spaced fabric fabric slack betweenn the rolls and said rotor.

15. In a machine of the character described, means for continuously feeding a tubular knitted fabric, a skeleton spreader frame for spreading the traveling fabric in tubular form to lay open the knit mesh thereof, and means uniformly spaced from the traveling fabric at all points in a plane extending transversely across said fabric where it is spread in tubular form for singeing the laid open knit mesh of said fabric.

16. In a machine of the character described, means for continuously feeding a tubular knitted fabric, a skeleton spreader frame generally circular in transverse section and along and over which said fabric is fed for being spread so that its knit meshwill be laid open, and means disposed in uniformly spaced relationto all spread mesh portions of the traveling fabric throughout its circumference for directing open flame through said spread mesh portions for singeing the same.

17. In a machine of the character described, means for continuously feeding a tubular knitted fabric, rigidly mounted means circular in transverse section and effective for spreading the traveling fabric to lay open the knit mesh therof, and a circular gas burner disposed concentrically with respect to the axis of and surrounding the spreading means for directing open flame into the spread mesh of said traveling fabric.

18. In a machine of the character described, means for continuously feeding a tubular knitted fabric, stationarily supported means for spreading the traveling fabric to lay open the knit mesh thereof,-a circular gas burner surrounding the spreading means for directing open flame into the spread mesh of said traveling fabric, and means for adjusting the burner vertically and horizontally to place its center with relation to the center of the traveling fabric.

19. In a machine of the character described, means for continuously feeding a tubular knitted fabric, skeleton frame means for spreading the traveling fabric to lay open the knit mesh thereof, and a circular gas burner surrounding said skeleton frame means for directing open flame into the spreadmesh of said traveling fabric, said burner having flame jet emitting orifices therein directed inwardly toward the traveling fabric and angularly in a direction opposite the direction in which said fabric is traveling.

20. In a machine of the character described, means for continuously feeding a tubular knitted fabric, skeleton frame means for spreading the traveling fabric to lay open the knit mesh thereof, and means disposed about said skeleton frame means for singeing the traveling fabric at the place at which it is spread, said feeding means including draw rolls disposed beyond the spreading means and effective to snuff out fabric smolder.

21. In a machine of the character described, means for continuously feeding a tubular knitted fabric, skeleton frame means for spreading the traveling fabric to lay open the knit mesh thereof, means for singeing the traveling fabric at the place at which it is spread, and spray means disposed immediately beyond the spreading means and efiective to extinguish fabric smolder.

22. In a machine. of the character described, means for continuously feeding a tubular knitted fabric, skeleton frame means for spreading the traveling fabric to lay oi en the knit mesh thereof, means for singeing the traveling fabric at the place at which it is spread, said feeding means including draw rolls disposed beyond the spreading means and effective to snuff out fabric smolder, and spray means disposed adjacent said rolls and immediately beyond said skeleton frame means and effective to extinguish fabric smolder.

SPENCER BOOE HANES.