US1468713A

US1468713A - Machine for tearing fabrics

Info

Publication number: US1468713A
Application number: US576136A
Authority: US
Inventors: Frier John Douglas
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-07-19
Filing date: 1922-07-19
Publication date: 1923-09-25
Anticipated expiration: 1940-09-25

Description

` Sept,A 25' J. D.y FRIER MACHINE FOR TEARING FABRICS Fi-ld July 19.' 1922 2 sheets-sheet 1 sept. 25, 1923.

J. D. FRIER MACHINE FOR TEARING FABRICS Filed July 19.

1922 2 Sheets-Sheet 2 Patented Sept. 25, i923.Y

nairsnsrsrss earner JOHN DOUGLAS FPJEER, OF VARINGSTOVN, l'RELAND.

MACHINE FOR 'BEARING FABRICS.

Application filed `Tuly 19,1922. Serial No. 576,136.

To all whom t mayconcern:

, Be it known that I, JOHNDOUGLAS FRIER, a subject of the King of Great Britain and Ireland, residing at lfVaringstown, county Down, Ireland, have invented certain new and useful Improvements in Machines for 'fearing Fabrics, of which the following is a speciiication j This invention relates to a machine for tearing fabrics and applicable for the production of stripsof cloth suitable, for eX- ampler, for the manufacture of square or .oblong articles such as handkerchiefs, pillow cases, etc.

Under my invention the fabric is led from a pile on artable, or a bar, or roller over and 4between guide bars or rollers and through a slot in a transverse plate with suitable guides where it is torn, one strip being' led to a winding roller or equivalent, at one side of the machine and the other strip to a winding` roller, or equivalent, at the other side of the machine. The torn strips of cloth from the slotted plate are led from guide rollers to rollers on a pivoted frame, passing under said rollers and upwards over other guide rollers to the winding rollers. the arrangement being the same at each side of the machine and such that if more cloth is wound on to one winding roller than another, the pivoted frame will tilt upwardly at the end nearestto the roller taking the cloth quicker. This tilting of the frame may be used to operate a warning r bell', or equivalent,'and to operate a stop motion whereby the machine will be stopped to allow of adjustment of the cloth coming fromV the tearing plate.

rlhe cloth as it passes from the table, or.

bar, or roller,is, preferably, first led over a guide roller1 or bar, then under a second guide roller and back over the top of the firstguide roller, then under a roller, supported on pivoted brackets, -which roller rcstson the cloth in such position as to assist or add to the tensioning effect and when the tension of the cloth, moving in two directions over the first mentioned guide roller or bar is excessive the pivoted roller will rise on its pivots and will thus ease the tension.

Theinvention will now be described with reference to the accompanying drawings whereon:-

Fig. 1 is a side elevation of a cloth tearing machine constructed in accordance with my invention.

. Fig. 2 Fig. l.

Figs. 3 and 4C are respectively side view of the top portion and end view of the lower portion of the stop motion in accorciance with the invention.

Referring to the drawings :4-

The fabric l is supported by a bar 2 on a movable table 3 from which the fabric 1, after being nicked, is led

round tension rollers

4, 5 and around a pivoted tension roller 6 and up between

transverse bars

7 and 8 where it is torn. From the

bars

7 and 8, one end of the fabric 1 is led

round rollers

9, 10 and 11 to a winding roller 12 at one end of thev machine, the other end of the fabric being led

round rollers

13, 14; and 15 to a winding roller 16 at the other end of the machine. The

rollers

10 and 14 are supported on a tilting frame 17 pivoted at 18 to the machine frame, the movement of the frame 17 being` controlled by the take up of the fabric on the winding rollers so that if one of the winding rollers takes up faster than the other7 the frame 17 will tilt lower on the side which takes up the least fabric.

A lever 19 is pivotally supported at 2()ZL on one end of a. plate 20, on which a transverse plate 21 is pivotally supported. The plate 21 is held from movement by the end 19b of the lever 19 until released thereby. A slidable rod 22 is held from movement by the plate 21 until the latter is released by moi/'ement of the end 19b of the lever 19. A bar 23 is pivotally supported on the plate 2O and presses against the slidable rod 22. A lever 24 is pivotally connected with the end 20" of the plate 2O and is connected with one end of a link 25 whose other end is connected with the plate 20. Pivotally sup ported at 26a is a lever 26 which is normally is a plan view corresponding to held in position by arweight 27. One end Vof a member 28 ispivotally supported at 28a, its other end 28b engaging the en d 29a of a bar 29 on which the belt foik 30 is carried. The bar 29 is movable under the action of a spring 30a. The arrangement is Vsuch that if the roller 12fis taking up more i fabric than the roller 16` the left side of the frame 17 will rise, and, when it has risen to its fullest extent it will cause the bar 10EL to come into contact with the end 19 of theV lever 19 and cause the end 191 of the lever 19 to be moved Vand release the pla-te 21,

Vthereby allowing the slidable rod 22 to be pushed forward by the bar 23'into engagement with a cam 31 on the spindle 32 of the winding `*roller 12. The engagement of the slidable rod 22 with the cam 31 causes the rod 22 to be pressed down into engagement with 'the end 2Gb of the lever 26S-thereby causing the end 2GC of the lever 26 to rise and lift the end 28b of the lever 28, out of "engagement with tlie'end 29a of the bar 29 which is then free to be moved bythe spring '30a and so change the belt on to the loose pulley and thereby stop the machine.

, If the winding roller 16 is taking` up more -The fabric in this ease is first led under thel fabric than the roller 12 the bar 10'LL will be caused to come into Contact with the lever 24 and depress same and through the link 25 the end 19b of the lever 19 will be pulled down and will-release the plate 21 which `will allow the rod 22 to be moved by the bar i223 into engagement 'with the cam 31 there- `"by'causing the rod 22 to be depressed and to 4act in the manner as hereinbefore described and so stop the machine. v

.i/Vhen it is necessary to resplit a width of fabric which has been split, the roller containing the split fabric is supported on a spindle 33 carried by movable plates 341.

pivoted tension roller 6, then over the roller.

4t and `round the roller 5 from which it is led

tothe tearing bars

7 and 8.

'Having now fully described my invention -wliat I claim and desire to secure bv Letters Patent is:- Y y f l. A machineV for tearing fabrics longitudinally, compris-ing a framework, a support yfor the fabric, a movable table'carrying said into vaction by the location of the tiltingA frame whenV it is tilted to a predetermined extent.

2. A maehinefor tearing fabrics longitudinally, comprising aframework, a supportY for the fabric,a movable table carrying said support, a winding roller on each side of said support and carried by the framework,

tensioning means for the fabric, transverse bars having a transverse slot vtherebetween wherethe fabric is torn by the pullV of the winding rollers on each side-thereof, a tilting frame interposed between the tearing bars and the winding rollers and round the ends of which the fabric is led to the winding rollers, the' position of the frame being. determined by the takeV up of the winding rollers, a plate supported on theframework, a lever pivotally supported on the plate, a transverse plate also Ypivotally suppoi'tedron the plate on the frame work and held from movement by'said lever until-released by Va movement of the leveiga bar pivotally supported on the plate on the framework and pressing against a slidably 'supported rod normally held out of the range of'a cam, the

tilting ofthe frame causing the bar pressingfon said rod to bring it into contact with Vthe cam, which causes the slidable rod to be moved and in moving to` operate a weighted lever held in normal position by a weight and which when moved by thel slidable rod effects 'therelease of a springcontrolled fork, which when released is moved Y by spring means so as to cause the driving belt of the machine to be moved from the fast to the loose pulley.

3. A machine'foi' tearing fabrics longitufor the fabric, amovable table carrying said support, a winding roller on each side of said support and carriedby vthe framework,

'tensioning means'for the fabric,rtransverse bars having a transverse slot therebetween where 'the fabric is tornV by the pull of the winding rollers on each side thereof,*a tilting frame interposed between the tearing Vbars andthe winding rollers and round the ends'of which the fabric is led 'tothe winding rollers, the position ofthe frame being Vdeterminedby the take up of the winding rollers, a plate supported on the framework,

a levei'p'ivotally' supported on the plate, a transverse-plate also pivotally supported on the plate onthe framework and. heldfroin movement by, said lever'until released by a movement of the lever, a bar pivotally supported on theV plate onthe frame work 'and pressing` against a slidably Vsupportedjrod `normally held out of the range of a cam, the

tilting of the frame causing the bar pressing on saidV rod to bringit into contact with the cam, whichcauses the slidable rod to be ndinall'y, comprisinga frame work, a support moved and in moving to operate a Weighted determined limit causes the operation of said 10 lever held in normal position by a Weight stop motion.

and which When moved by the slidable rod In testimony whereof I aHiX my signature effects the release of a spring controlled in presence of two Witnesses.

fork, which When released is moved by spring means so asf to oause'thel driving belt JOHN DOUGLAS FRIER of the machine to be moved from the fast to Witnesses:

the loose pulley, and means whereby the tilt- ANDREW HAMILTON,

ing of the frame at either end beyond a pre- HARRY WALTER ALLsoP.