US2476759A - Cloth laying-up machine - Google Patents

Description

July 19, 1949. N. OBEDIN CLOTH LAYING-UP MACHINE 4 Sheets-$heet 1 Filed Aug. 9, 1945 NATHAN OBEDI N INVENTOR BY W h/ [M ATTORNEY v N. OBEDIN CLOTH LAYING-UP MACHINE July 19, 1949, 4

4 Sheets-$heet 2 Filed Aug. 9, 1945 NATHAN 055mm INVEN TOR A TTOHNEY N. OBEDIN CLOTH LAYING-UP MACHINE July 19, 1949.

Filed Aug. 9, 1945 4 Sheets-$heet 3 L U O .O. '5':

- NATHAN OBEDIN BY W IN VE'N TOR ATTORNEY July 19, 1949. N. OBEDIN CLOTH LAYING-UP MACHINE 4 Sheets-$heet 4 Filed Aug. 9, 1945 N N KM m m Q 0 W ,N A NM H m .N lg. H L3 3 2 \VL HNL R w 2 L a fi s .L. I F/ 9 SN lllv w r ATTORNEY Patented July 19, 1949 ;UN-ITED';STATES PATENT OFFICE CLOTH LAYING-UP MACHINE Nathan obtain, Brooklyn, N. Y. Application August 9, 194-5, Serial No. 609,850

7 This invention relates to cloth laying-up machines for supporting a bolt'of cloth'to be placed in superposed layers of equallengths on a cut-' ting table.

An object of this invention is to provide a cloth laying-up machine comprising a cloth carrying frame pivotally mounted in superposed relation over a reciprocable' frame, 'the' reciprocable frame having adjustable arms for supporting fabric over a cutting table,*means for automaticallyraising the arms a predetermined distance from the table for every rotation of the pivotal frame, and latch means resiliently mounted at one end of the reciprocable frame and adapted for engagement with 'bolt receiving means on both ends of the pivotal frame for locking the frames in unitary relation after each rotation of the pivotal frame.

Another object of this invention is to mount ball bearings in horizontal alignment at'opposite ends of the reciprocable frame with their upper surfaces lying in a single plane and providing levelling means for automatically adjust: ing the pivotal frame to a level plane after each rotation of the pivotal frameto facilitate en gagement of the latch means. 7

Another object of this invention is to provide a latch bolt resiliently mounted for upward move-- ment at one end of the reciprocable frameandto provide latch bolt receiving means fixed at each end of the pivotal 'frame'for automatically locking the frames in unitary relation aftereach rotation of the pivotal frame.

With the above and other objects in view, the

invention will be hereinafter more particularly described, and the combination. and arrange-1 ment of parts will be shown in the accompanying drawings and pointed out in the claims which form part of this specification.

Reference will nowbe'had to the-drawings,

wherein ;like .numerals of reference designate corresponding. parts; throughout the several views, in which:

;.Figure 1-is a side elevationof the cloth layingup machine embodying the features of this in-.

vention.

Figure 2 is a front elevation of the cloth laying- "up machine shown in Figure 1. 1

of mechanism for automatically and equally moving the; laying-up or guide rollers-to and from the table,.

Figure 3 is a cross-sectional via the section being taken as on line 3 -3 in Figure 2.

Figure 4 is a view of a themechanismshowninFigureB.. I

fragmentary portion of :5 Claims. (Cl. 270-31) Figure 5 is a front view of lock bolt mechanism and latch means for locking the frames in unitary relation.

Figure 6 is a crosssectional view, the section being taken as on line 66 in Figure 5.

Figure '7 is a front View of ratchet mechanism for raising fabric supporting arms.

Figure 8 is a cross-sectional view, taken as on line 8-8 in Figure '7. 1 V

In the illustrated embodiment of the invention, the numeral Ill indicates a cloth laying-up machine comprising upper and lower frames. The lower frame II is slidably or reciprocably mounted on a cutting table l2. The frame H has end walls l3, I3,

The end walls are secured by threaded tubes l4, l4 passing through the walls. Threaded nuts I5 engage the threads onthe tubes on opposite sides of the end walls and maintain the end walls in space-apart relation.

Grooved wheels H are rotatably mounted on studs IS in legs l9at the lower portion of the end wall l3 and rest upon a track- 20 mounted on one side of the cutting table l2. The end wall I3 is supported by non-grooved or plain rubber wheels 2| rotatably mounted similar to the mounting of the grooved wheels I! and rest directly on the cutting table [2.

The upper or carrier frame identified by the numeral 22 is mounted on apivot centrally of the slidable frame. The carrier frame 22 is rotated at the end of each reciprocation of the slidableframe to expose. the fabric with the same face in an upward direction. The frame 22 has end walls 24 which extend upwardly and terminate in bifurcated upper ends 25 adapted to receive a shaft 26 fbr supporting a roll of cloth indicated by dot-and-dash lines 21. A suitable sheet metal cover 28 isisecured to and covers the tubes l4.

The roll of cloth 21 which is to be laid-up on the table I2 is supported'on the shaft 26. For the purpose of keeping the fabric in an even plane as it is laid-upon the table, the machine:

rollers 30, 3| and the pivots 33, 33 are spaced apart equally from the shaft 26,.

- -For the purpose ofequally moving both arms in the same direction relative to the table as. determined by the height of the cloth laid-up, the ends'of the armsopposite the rollers have pins 3 34 fixed therein and extending crosswise from the arms. An elongated horizontally positioned connecting member 35 has elongated slots 36 in which the pins 34 are slidably mounted.

The connecting member 35 has vertically positioned rectangular guide bars 40 secured thereto in any suitable manner, such as by pins 4|. The guide bars 40 are spaced apart and form between them a channel 42.

A vertically. elongated rectangular' bar 43. is.- fixed to each'end wall by bolts-44'; Each bar-43 has an elongated slot 45 centrally thereof. The cross-sectional dimensions of the bar 43 are made" to permit the connecting member 35 to)be freely! slidable in contacting relation therewith.

A hand knob 46, having an integrally threaded position by the spring.

bar 47 passing through the slot.45.is in.thr =:aded.v

engagement with the connecting member 35. By adjusting the hand knob, the connecting: member 35 may be frictionally secured to the rectangular bar- 43 in selected. vertical. positions.

7 By slightly. unscrewing the handknob,- theconnecting member 35 is released from" excessive frictional restrainment. It thuspossible; by moving the laying-upmollers on one side of the: carriage LLfrom-the. table: to-cause both connecting membersy35satopposite end walls i3, l3. tomove verticallyandtoicause the roller on :the opposite side of the carriageto move. equally;

vertically-in the samejdirection from the:table.

Fixed to-the centrallportionzof the rotatable upper frame.22:is a cylindricahhousing 50 ro+ tatablyreceiving a pivot 5| which is-fixed to thecentral portion of-the-slidable lower frame II. The upper frame is thuscrotatably mounted insuperposed relation with :therlnwerrframe;

For the purpose of; automatically raising the end portions of, fabric carrying arms 32' every time the pivotal upperframeflis moved through an angle of 180 degrees; I.-.ha.-ve;provided intermittent mechanism at: each end. of thesrslidable frames H. -The;meohanism- 602 comprises: ratchetwheels; 61*. fixeditc shafts 62Lwhich are rotatably mounted in; housings. 63; fixeds at 2 each endiof thecslidablerframa- H Each shaft .t zihassaacam .afilvfixed atheretor The lower: faces; ofgther cams- 'contact'r the: upper; surfaces of the vertically-slidableszconnectingrmenu' bers35z I An oscillating arm GS-is mounted on :eacheshaif 62.- A pawrS-l is pivotally mountedon .a pin :68; in-the. arm :66; and ;engages;a;.tooth of the ratchet Wheel. Whenthe arm fifisissswung in ithezdirece tion of theqarrow, the-paavllcarriesthearateheti wheel around-f oneltoothslengtl'ia' A striker 69:- fixed-at each end iOf the pivotallymountedzupperi frame 22 actuates thev pawl .everytime this frame;- isarotated- This :movemerrtis transferred by the cams-,fi l-zto the;vertically slidalolewmembers 35 which actuate the fabric carrying arms-.H and' cause end-portions .of .the-sarmszto rise above. the cutting table an equaidi'stanceior everyvrotationr ot'the pivotal frames. It iSi-ObViOllSlZh3ifih6 pawl and ratchetrmechanismion the: far wall It is; arranged in reverse-:position: when viewed 1 from: the POSifiOILShOWniH Figurefl; I may provide roller friction clutchesin place of th'e ratchet wheels when very small rising motions are-required; a

As best shown 'in-Figures d to 7 inclusive; I have provided latch means-JO for locking the pivotaloframe:-22 toutheaslid-able frame I I after each rotation. of the pivotal frame: P

: The1 latch means-10 comprises two superposed Fixed. to diametrically opposite end portions 5 of the pivotal frame 22 are brackets or bolt re- 'Ukentersaan aperture I8, the frames II and 22 are locked in unitary relation.

As bestshown. inFigures. 7 and.8,- .a balLbearing. 8111 isrotatably mounted on. one' of 1 the. walls l3.of the. frame IL and positionedioppositethe locking means 14. The upper surface ofthe ball bearing is positioned abovethe: upper surface of-the wall.l3=. I 7

As best shown in .Figurez, another. ball bearing Ellis. similarly mounted fon thecppposite wall- I3 of. the frame. H. The twobearingsare. in hori zontal. alinement. at opposite. ends of the. frame H, with. their upper. surfacesrlyingina single plane;- and. provide leveling, means .for. automati cally, adjusting thapivotalframe: 2.2 to a. level plane. after each rotation. of :the pivotal frame. This; arrangement. facilitates: engagement of the latch means in..- whereby.- thelockbol-tll-engages the. boltereceivingpmeans;11. Itis: to benoted that the outer portion of the boltreceiving means 11.- is curved upwardly and thiss also facilitates the engagementlot. the. lockabolt' 1b with the:

' aperture: :18 in the holt-ireceivingmeans 11;

A. coil. spring-g. 82.. has one: end. suitablysecured to the armtfi-iand-the otherend tothe housing.- 63 The'aspringdl serves-:toreturn thearm 66' when the arm 66 is releasedby the':striker: 69-; It. is .to be. noted:- that-the-.-pawl 6 1 has sufficient weight so; that it; dropsinto successive. ratchet teeth in .the.-ratchet: wheel: err-the return movement of; the pawl.

Theswalls =24 oftthe pi-votailiframe; 22are inter connected bye-pa-irsemn -.spaced-.apart parallel hori zontal rods 85, 86, one nair orrreachiside of-th-el frame 22;

FIhea-cloth. fronritheeroll 11211; passes.abetweeiriitheguide rods .35; BBsandzbietweemthec guide rollerss 30 1.31; The laying; ofirthe clnthiirrilayers iSI.a.S:- follows: One: the table l2 and anzelongated bar 81% of: coirsiderable weight is; pieced; the end: of: the cloth? The: cloth .laying-upz'machinei l 0 thenmoveckto .th'e oppositefiend ofl'the table.- Duringinto abutment with-aston-Mron the housing 63-- such movement the cloth unwindsffom the-roll ofzcloth: 21.. Theeclotlnmay therr be: out! and a; similar bar: placed on tliat end 7 ofthe" cloth; The pivotal frame the ivot! l ithroughanangie of pnehundrecl and eighty degrees. Thev frevend ofi tlreclotlr is then: :threaded: throughrath'e I opposite rod 8 5' over The machine is then moved to the starting en'dfof the table-todayanother length "of "cloth 'and' re, versed. These operations are repeatedythe frame 22 may then be rotated about" being moved back and forth until the desired number of layers have been laid up on the table with the right side of all the layers of cloth facing up or down as desired.

In accordance with the patent statutes I have described and illustrated the preferred embodiment of my invention, but it will be understood that Various changes and modifications can be made therein without departing from the spirit of the invention as defined by the appended claims.

I claim:

1. In a cloth laying-up machine comprising a cutting table and a frame reciprocably mounted on said table, a cloth carrying frame pivoted and rotatably mounted on said reciprocable frame, adjustable arms adjustably mounted upon said reciprocable frame, rods carried by said arms for supporting fabric over said cutting table, and means whereby rotation of said pivoted frame automatically raises said arms a predetermined distance from said table.

2. In a cloth laying-up machine comprising a cutting table and a frame reciprocably mounted on said table, a cloth carrying frame pivoted and rotatably mounted on said reciprocable frame, adjustable arms adjustably mounted upon said reciprocable frame, rods carried by said arms for supporting fabric over said cutting table, means whereby rotation of said pivoted frame automatically raises said arms a predetermined distance from said table, a bearing rotatably mounted at each end of said reciprocable frame for leveling said pivoted frame, and latch means in alinement with said bearings for automatically locking said frames in unitary relation after being levelled.

3. In a cloth laying-up machine comprising a cutting table and a frame reciprocably mounted on said table, a cloth carrying frame pivoted and rotatably mounted on said reciprocable frame, adjustable arms adjustably mounted upon said reciprocable frame, rods carried by said arms for supporting fabric over said cutting table, means whereby rotation of said pivoted frame automatically raises said arms a predetermined distance from said table, a rotatable bearing mounted on a horizontal axis at each end of said reciprocable frame for leveling said pivoted frame, and latch means in alinement with said bearings for automatically locking said frames in unitary relation after being levelled.

4. In a cloth laying-up machine comprising a cutting table and a frame reciprocably mounted on said table, a cloth carrying frame pivoted and rotatably mounted on said reciprocable frame, adjustable arms pivotally and adjustably mounted upon said reciprocable frame, rods carried at end portions of said arms for supporting fabric over said cutting table, means whereby rotation of said pivoted frame automatically raises said arms a predetermined distance from said table, a rotatable bearing mounted on a horizontal axis at each end of said reciprocabl frame, the upper surfaces of said bearings lying in a horizontal plane for supporting and leveling said pivoted frame, and latch means mounted on said frames and in alinement with said bearings for automatically locking said frames in unitary relation.

5. In a cloth laying-up machine comprising a cutting table and a frame reciprocably mounted on said table, a cloth carrying frame pivoted and rotatably mounted on said reciprocable frame, adjustable arms pivotally and adjustably mounted upon said reciprocable frame, rods carried at end portions of said arms for supporting fabric over said cutting table, vertically slidable members respectively connecting two of said arms, cams rotatably mounted on said reciprocable frame and contacting said connecting members, ratchet means mounted on said reciprocable frame for intermittently actuating said cams, and strikers at each end of said pivotal frame for actuating said ratchet means, whereby rotation of said pivoted frame automatically raises said arms a predetermined distance from said table.

' NATHAN OBEDIN.

REFERENKJES CITED The following referenlces are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 472,173 Howe Apr. 5, 1892 1,078,302 Moritz Nov. 11, 1913 2,196,823 Breth Apr. 9, 1940

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