US2444775A - Warp beam compressor device - Google Patents

Description

July 6, 1948. F. B, JAVERY WARP BEAM COMPRESSOR DEVICE 2 Sheets-Sheet 1 Filed Oct. 4, 1946 y 6, 1948. F. B. JAVERY 2,444,775

WARP BEAM COMPRESSOR DEVICE Filed Oct. 4, 1946 2 SheetsShee t 2 Jim B 15: -9

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Patented July 6, 1948 wAarBnAM. COMPRESSOR. nnv'roii Frank B. Javery; Worcester, Mass as'signor to Warp Compressing MachineGompany, Worces--' ter, Mass.,'a corporation ofzMassachusetts- Application'bctober l, 194e, ser ijmi; 701.256

7 Claims.

The present invention relates to warp beam windingimachines which are utilized in the textile industryfor coll'ecting'upon a single warp beam the 'yarnfrom a plurality of creels or spools. More particularly, thepresent invention relates to warp beam compressor devices which are adapted to exert a pressure upon the yarn as it is wound about the. warp beam so that .the yarn will be wound' about the warp b'earnund'er a proper and uniform tension.

'It is'notnew in the textile art to provide warp beam winding machines with compressors, but such compressing devices which have been heretofore devised have been of such design asto require an undue amount of space for the installation thereof, Furthermore, these prior compressor devices were not designed so that'they could be attached to or removed from a winding machine with any degree of facility. In fact most of these prior devices had portions'thereof secured to overhead means as well as to the floor upon which the winding machine "rested and,

therefore, it is clear that such devices might prevent ready access by the operator to certain parts of the winding machine. Therefore. it is the primary object of the present invention to provide a warp beam compressor which is so designed that it. will require a minimum of valuable space for the installation thereof.

A further object of the present invention is to provide a warp beam compressor which, although efiicient in operation, is rugged in construction and at .the same time inexpensive to manufacture.

' A still further object of this invention is to pro-' vide a. warp beam compressor which will exert a substantially constant pressure upon the yarn at'all' times during the winding operation.

With the above and other objects in view, as

will hereinafter appear, the invention comprises the devices, combinations and arrangements of parts hereinafter set forth and illustrated in the accompanying drawings of a preferred embodiment of the invention from which the several features of the invention and the advantages attained thereby will readily be understood bythose skilled in the art.

In the accompanying drawings:

Fig. 1 represents a perspective view of awarp beam winding machine with the present inventionincorporated therein.

F'ig. 2 representsa top plan view of a portion ofthe machine' disclosed in Fig. 1. "Fi'g-.'3*represents a sectional view of the present machine'taken substantially along line 3 --'3- of Fig. "4 represents a sectional view taken sub stanti'ally' along'line 4-4 of Fig. 2.

Referring particularly to Fig. 1, the present warp beam winding machine comprises a power head'un'it designated generally by the numeral "I, which power head unit has mountedtherein 1 the usual driving gears and driving pulleys 'I-l connected to a sourceof power by means of beltswh-i'ch are not disclosed herein. Horizontally spaced'fromthepower head unit "is an end frame-member I2 which is adapte'd'to be secured to a base plate ['3 which in turn maybe secured to the-floor by the usual means. Mounted in appropriate bearing meanscarried by the spacedmember's] I 0 and- H is the usual warp beam M oneend' of which is designed to be rotated "by the pulleys [1- all in the usual manner. The top portionsof'themembers I0 and IZ'are adapt ed'rotatably to receive the usual spread bar [5. As is well known. in the art, the present type of'machine is adapted to have yarn from a plurality ofcreeis directed about the spread bar l5 from which the yarn is carried.- over to the warp beam l4 upon which the yarn is wound in the usual fashion. 1

In order that the-yarn may bewound with a.

uniform tension'upon the warp beam'the present machine is provided with a compressor shaft 15- which is rotatably mounted and disposed against the outside'surface of the yarnas the same-is beingwound 'about'the warp beam M. By providing sufli'cient pressure against the compressor shaft l t it'isdirected to be forced. against the thereby to eifecta-proper tension inthe yarn as the-same iswound" about the'warp beam. Referring particu-larlyto Figs; l-and' 3, the com.- p'ressor shaft Wis rotatably' mounted within head members llof which one: is carried; uponeac'h of three arms "IE-which are' in turn suitably secured upon a rock shaft I9 rockabiy carriedzwi-thi n two-bearing'members: 2-0; 20*. These bearing members-20; 211" arein turn suitably secured upon platesl'l, 21 which are securedto the floor in a-suitable fashion. Thus it may be understood that as the yarn accumulates onthe warp beam M=' i-t-will "be effective to shift the compressor s'h'a'ft'lfiaway from the warp beam about the axis'off' its rock shaft [9. Both the compressor shaft and its-rock shaft [9 are disposed inparallelism with the'warp-beam l4.

fMounted ri'g-idly upon the rock shaft l's-is a segment gear '2'? which meshes with a cer're 3 rock shaft 24 which is rockably mounted within bearing members 25, 25. These bearing members 25, 25 are also secured to the floor plates 2|, 2|. Thus, by means of the segment gears 22 and 23. the rock shafts l9 and '24 will be made to operate in synchronism with each other.

Rigidly secured to and depending from the shaft 24 is=a crank element 25 ato. thefree end portion of which is pivotally secured one end of a link 21 whose other end is pivotally secured to a sliding wedge or friction block 28. Referring particularly to Figs. 1 and 3, it may be seen that the link 21 is secured to the crank 26 by' means of a pin 29. By providing the=end-of the link 21 with a plurality of apertures3ll it is to be'under-x understood that as the yarn, designated generally by the numeral 54, accumulates on the warp beam l4 it will be effective to shift the compressor shaft l6 away from the warp beam H to the end that the rock shaft l9 will be rotated in a clockwise direction and the rock shaft 24 will be rotated in a counter clockwise direction. This movement of the rock shaft 24 will shift the wedge 28s tow'ards the'front portion of the machine thus to force the element 38 to move against the shorter limb 44 of the lever 42 to the 7 end that the weights 53 will be elevated slightly.

stood that the effective length of the link 21 may i be altered by inserting the pin, 29intoa selected one of these apertures 30. A tions to secure the link 21 to 28. This wedge member 28 is slidably mounted upon a floor plate 32;;which has secured thereon an abutment block 33 by means of bolts 34. This abutment block'carries on the t p portion thereof a guide plate 35- which overlaps one edge portion of the wedge 28 for the purpose of cooperating with the abutment block 33 in the guiding of the element 28 upon the plate 32. Referringparticularly to Fig. 2, it is to be understood that the one side of the'element 28 is formed so asto be inclined relative to arectilinear path of .movement through which the rocking element l9 will actuate the wedge 28. This inclined surface is designated bythe numeral 36v and it is engaged byan inclined surface 31 formed on a second wedge 38 or friction I adapted to bearagainst the first wedge 28 and to bezguided by oppositely disposed and spaced guide blocks 39, Silwhichare secured to the plate 32 by means of bolts 40. Across the top portions of the blocks 39, 39 is carried, by means of the bolts 40,- a, guide strap 4| which functions to hold the member 38 within the confines'of the guides 39, 39. Thus, it is to be understood that the path of movement of the element 38 is disposed at right angles to that of the element 28. 7 Referring particularly to Fig. 2, a pressure lever 42 is pivotally mounted upon the plate 32 by means-of a fulcrum bolt 43 which is threaded directly into the plate 32. This pressure lever" is disposed in a horizontal plane and the shorter limb thereof, designated by the numeral 44, is curved and adapted to engage the right hand end of the member 38. The longer limb 45 ofthe lever 42 has pivotally secured thereto one endf. a link 46 whose other end is similarly secured to one arm of a bell crank lever 41. Bolts 48, 48 function to secure the link 46 to the members 45 and 41. This bell crank lever 41 is pivotally secured by means of a pin 49 between a pair of spaced bracket members 50 and which are adapted to be secured directly to the floor by any suitable means.

The free arm of the bell crank lever 41 has a pin 52 carried therein forthe purpose of receiving one or a plurality of weights 53 for the purpose of biasing this arm of the bell crank lever downwardly. It is to be understood, that the weights 53 will be effective to biasthe shorter limb 44 of the pressure lever 42 against the right hand end portion of the wedge 38 thereby to force this wedge into engagementwith the wedge 28. Thus, the wedge 38 will oppose the movement of the wedge 28 in the event that this latter element is moved toward the front portion of the machine. Referring particularly to Fig. 3, itis to be block. This second wedge is similar pin 3| func the wedgemember.

Due to the 'fact'that the effective length of each of the arms l8 isappreciably greater than that of .the crank 26 the amplitude of movement of the bell crank lever 41 will never be very great in spite of the fact that the arms 18 will be shifted through a substantial angle as the yarn accumulates upon the warp beam l4. As the entire mechanism is so adjusted that the free arm portion of the bell crank lever 41 willbe in a horizontal position wheneverthe warp beam|4 is approximately half full, and as the amplitude of movement of the bell crank lever is relatively small, it is to be understood that the bell crank lever with its weights 53 will exert a substantially constant 'force against the wedge 38 at all times. Mounted upon an overhanging end portion of the crank shaft 24 is a handle member 55 which is adapted to provide a means'whereby an operator may shift the compressor shaft l6 away from the warp beam I4 preparatory to either placing the beam l4 upon or removing the same from the winding unit. I,

From the above description it is to be understood that the present invention comprises a compressor unit which is most compact as the component elements thereof are'small in size and are closely coupled. Furthermore, the present compressor unit is so designed that the greater portion thereof may be placed'beneath the winding machine proper and thus it does not prevent access to the machine nor does it require valuable floor space that could be otherwise used,

I claim: 1. The combination in a warp beam winding cmachine including a rotary warp beam for wind? ing materialthereon, and means for rotating said warp beam, of a compressor shaft for engaging the surface of the material which is wound about said Warp beam, said compressor shaft being adapted to be shifted away from said warp beam by the material as it accumulates on said Warp beam, and means connected with said compressor shaft for opposing vthe movement of said compressor shaft away from. said warp beam, said means comprising a pair of interengaging and relatively slidablefriction blocks' of which one is connected to said compressor shaft, and means for biasing said friction blocks together thereby to oppose relative sliding movements therebetween in one direction. i L

2. A compressor device for use with a' warp beam winding machine having a rotary warp beam for winding material thereon, and means for rotating said warp beam, said compressor device comprising, a compressor element for engaging 1 compressor element and adapted for rectilinear motion, a second member engaging said first eluding first and second interengaging and relafriction block, and means including a gravitytively slidable friction blocks of which said first biased means for urging said second friction block block is connected to said compressor element, against said first friction block thereby to oppose and means for urging said second block against the rectilinear movement of said first friction said first member so as to oppose the movement of block in one direction. said first block in one direction, said last men- 3. A compressor device for use with awarp beam tioned means including a fulcrumed lever whose winding machine having a rotary warp beam for one end carries a gravity-biased mass and whose winding material thereon, and means for rotating other end is associated with said second block. said warp beam, said compressor device compris- 6. A compressor device for use with awarp beam ing, a compressor element for engaging the surwinding machine having a rotary warp beam for face of the material which is wound about said winding material thereon, and means for rotatw-arp beam, said compressor element being pivoting said warp beam, said compressor device nomally mounted adjacent said warp beam so that it prising, a compressor element for engaging the may be shifted away therefrom by the material as surface of the material which is wound about said the material is accumulated on said warp beam, warp beam, said compressor element being pivota first friction block connected with said compresally mounted adjacent said warp beam so that it sor element and adapted for rectilinear movement, may be shifted away therefrom by the material as said first friction block having a surface thereof the material is accumulated upon said warp beam, inclined relative to its direction of motion, a seca first friction block connected with said compresond friction block disposed in engagement with sor element and adapted for rectilinear movement, the inclined surface of said first friction block, said first friction block having a surface thereof and means to bias said second member against inclined relative to its direction of motion, a secsaid first friction block thereby to oppose the end friction block disposed in engagement with movement of said first friction block in one directhe inclined surface of said first friction block,

tion. and means to urge said second block into relative 4. The combination in a warp beam winding sliding engagement with said first friction iblock machine including a rotary warp beam for windthereby frictionally to oppose the movement of ing material thereon, and means for rotating said said first block in one direction, said last menarp beam, of a compressor me f r enga ing tioned means including a fulcrumed lever whose the surface of the material which is wound about one end carries a gravity-biased mass and whose said warp bea a mpressor element being other end is associated with said second block.

pivotally mounted adjacent said warp beam so as "I. A compressor device for use with awarp beam to be shifted away from said warp beam by h winding machine having a rotary warp beam for ma i as i accumulates n d p beam, winding material thereon, and means for rotating and means for opposing the movement of said said warp beam, said compressor device compriscompressor element away from said warp beam, ing, a rock shaft disposed in parallel relation with said m ns c mp in fi nd Second m m said warp beam, a compressor element carried by bers, each of said members being mounted for recid rock ft, and means for urging id tilinear movement and each having a surface pressior l t tow r id, w r beam a the thereof inclined relative to its direction of movematerial is accumulated on said board, said last ment, said first and second members being ismentioned means including a crank operatively posed with their respective inclined surfaces in connected with said rock shaft, a wedge-shaped engagement w h e other nd h being member adapted for rectilinear movement, a link fined for movement in a path disposed substan connecting said wedge-shaped member with said tially at right angles to that of the other member, crank, a mb disposed in engag ment with means to connect said first member with said id wedge-shaped mhe a d means including compressor element, and means for biasing said gravity bia e s for urging said member second member against said first member thereby gainst said wedge-shaped member thereby to to oppose the movement of said first member in oppose th rectilinear movement f said latter one direction element in one direction.

5. In a compressor device for a warp beam FRANK JAVERY, winding machine having a rotary warp beam for winding material thereon, and means for rotat- REFERENCES CITED ing said warp beam, the invention which comprises, a compressor element disposed in parallel relation with and pivotally mounted adjacent to said warp beam so as to be shifted away from UNITED STATES PATENTS said warp beam by the material as it accumulates Number Name Date upon said warp beam, and means for opposing the 725,120 Mccanum A 14, 1903 movement of said compressor element away from 2,337,129 Rowe Dem 21, 1943 said warp beam, said last mentioned means in- The following references are of record in the file of this patent.

Certificate of Correction Patent No. 2,444,775. July 6, 1948.

' FRANK B. JAVERY It is hereby certified that errors appear in the printed specification oi the above numbered patent requiring correction as follows: Column 5,1ines 1 and 23, strike out member and insert instead friction block; column 6, line 5, for member read block; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Office.

bigned and sealed this 21st day oi September, A. D. 1948.

THOMAS E. MURPHY,

Assistant Oommissioner of Patents.

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