Dec; 24, 1946. H. c. WOLFENDEN COLLAPSIBLE AND EXPANSIBLE SPINDLE Filed Dec. 7,’ 1943 2,413,091 Patented Dec. 24, 1946 2,413,091» UNITED STATES PATENT OFFICE 2,413,091 COLLAPSIBLE EXPANSIBLE SPINDLE Harry G. Wolfenden, Attleboro, Mass. Application December 7, 1943, Serial No. 513,240 ' 1 Claim. (Cl. 242-118) 2 My present invention is a novel and improved collapsible and expansible spindle for use in hold . will be non-injurious to the articles wound there on and to the dye utilized in connection there with. Such spindles are of suitable length when spools, cheeses, packages, or other articles are to be treated. Such spindles are made with suit~ ing yarn, slivers, roving, rayon, silk, cotton, woolen, and for packages, cakes, cheeses, or yard goods, particularly for handling and treating nat~ ural, synthetic, or arti?cial ?laments, particu able yielding or spring-like capacity and with larly for use in dyeing apparatus and processes. means to permit the expansion of the spindle to Heretofore, great di?iculty has been experi a substantial extent and to hold the same thus enced in winding yarn or the like ?laments on a spool or spindle, as during the winding the pres 10 expanded during the operation of winding thereOn the material to be dyed or treated. sure normally exerted constantly increases until the spool, cheese/or ?lament being wound be comes increasingly compacted and matted, espe cially the underneath layers and, therefore, it has heretofore been extremely di?lcult to force 15 dyeing liquid therethru, Thus, the spool, cheese, or cake is not dyed evenly or uniformly through out the thickness of the material wound on the spool or spindle. ’ Thereupon, the expanding instrumentalities are released‘ and the inherent yielding capacity of the material automatically contracts the cyl inder an appreciable amount, thereby relaxing the tension on the lower layers and thus tending to make the entire package, cheese, spool, or wound article more permeable to the penetration of the liquid dye, and eliminating all dye layers, spots, as well as eliminating the natural tend My present invention is directed to provide a ency of matting and compacting of the lower collapsible and expansible spool or spindle struc 20 layers. ture which will have a considerable range of Furthermore, When the yielding spindle and radial yield and, preferably, I expand the spindle during the winding and, thereupon, release the its wound articles are subjected to the dyeing expanding means, permitting the spindle con 25 liquid, the cylinder may contract still further to automatically compensate for the increasing stituting the core of the now completely wound tendency to tighten or shrink about the cylinder, material to contract; thereby relieving the pres caused by the usual swelling tendency when sure tending to compact and mat the Wound immersed in liquid, thus still further maintaining material and, thus, facilitate the penetration of the dyeing liquid and thereby cause the entire 30 the even winding and relatively open and non matting condition of the yarn or other articles material to be dyed uniformly. on the spindle. 1 My present invention of a collapsible and ex pansible spindle, furthermore, takes care auto matically of the increasing tightening tension of the material to be dyed as it becomes wet, the In order to insure the free-?owing of liquid thru the perforations or openings in the cylin der, particularly’ during the collapsing and ex pansion and, thus, during the overlapping of'the dyeing liquid normally shrinking the yarn, ?la 35 two meeting edges of the cylinder, I provide the ments, or other material and, thus, still vftuther openings or holes so that they will substantially tending to compact and mat down the under register at the overlapping portion during the layers. This is a further advantageous feature. contracting position of the cylinder after the I also contemplate the use of such expansible and collapsible perforated cylinders of suf?cient 40 expansible instrumentalities have been released. I may also provide elongated slots at these over~ size, area, and capacity to receive, hold, and dye lapping portions So as to insure a free flow of or otherwise treat textile articles in the form of dyeing liquid therethru at all times irrespective yard goods, knitted, netted, or woven, which have heretofore been impossible to dye on a spool or 45 of the extent of the collapsing or expanding at these overlapping edge portions. , spindle. Preferably, I utilize the dyeing apparatus and process explained in my prior and copending ap plication Serial No. 502,911, ?led September 18, 1943, thus taking advantage of the multiple spray dyeing method process of my prior invention de scribed in said application. In carrying out my invention, I prefer to utilize Referring to the drawing illustrating preferred embodiments : ' - Fig. 1 is a side elevational view of my-improved spindle construction in collapsed or normal con tracte'd position; , Fig. 2 is a corresponding illustration of the spindle in expanded relation; Fig. 3 is a diagrammatic view illustrating means a cylindrical spindle-like construction of metal, plastic, or other suitable yielding material, which 55 to hold the cylinder in expanded position during the winding or wrapping of the material thereon; 2,413,091 3 bottom rim in contact with the plate 20. Any Fig. 4 is a cross-sectional view on the line 4-4 other desired or suitable means can be utilized to of Fig. 1; hold the cylinder expanded to any desired extent during the wrapping or winding operation, the inherent contractile resiliency of the cylinder holding the same in this position until the wind~ Fig. 5 is a cross-sectional view on the line 5—5 of Fig. 1; Fig. 6 is a fragmentary view of a modi?ed form of slots or openings in the cylinder at the over ing is completed. lapping portion; Fig. '7 is a view on the line ‘|---‘! of Fig. 6, and Fig. Sis a cross-sectional view on the line 8-8 of Fig. 6. ‘ ;'I"hereupon, the withdrawal of the plate 20 and cones 2| from each end will permit the cyl 10 Referring to the drawing, I designates 9. cyl inder preferably of rustless metal, elastic plastic, tions therethru, indicated at 2-—2, the cylinder the cylinder progresses. An important advantage of the construction being longitudinally separated and having the edge portions overlapping, as best shown in Figs. above explained, and the guiding bolts 6 or clips 5 and 8, one edge 3 shown as the outer overlap ping surface, and the inner edge 4 on the inner [0, is that no serious projections are formed on the outer surface of the cylinder to catch, tear, or otherwise injure the lower layers of the mate rial wound thereon during the contracting ac This provides a construction which will permit these overlapping edge portions to slide freely upon and in contact with each other dur ing the expanding and contracting of the en tire cylinder I. In order to provide a limit of the expanding and collapsing action, as well also to maintain the overlapping edge portions of the cylinders in sliding contact, any suitable means may be provided. Preferably, and as herein shown, I arrange circumferential slots 5 at the top and bottom portions of the cylinder adjacent readily under the lower layers of the wound or wrapped material during this release of ten, sion, and the lowermost layers automatically be ing relieved proportionately as the contraction of or the like,,having a large number of perfora side. inder to contract, the overlapping edges moving tion. Thus, with the apparatus as herein shown and explained, I eliminate the prior dif?culties of matting, compacting, or tightness of the under neath layers of the material, which heretofore have been so compacted therebetween in cheeses and packages as to prevent a free-?owing of the liquid dye therethru, thus leaving these un der layers only partially treated or dyed and, 30 hence, resulting in a lack of uniformity of the the inner overlapping edge 4, and attach a retain~ ing rivet, screw, or bolt 6 with the shank portion material dyed. of suitable diameter to traverse the slot 5, said bolt Also, by having this spindle contracted and having an enlarged head spanning the slot 5, arranged to afford the automatic contraction, it and with the opposite end secured at the adja may yield still further when the material is sub cent marginal and overlapping portion near the 35 jected to a tightening on the spindle by the swell edge 3, as best shown in Fig. 8. Or I may simply ing or shrinking of the material thereon. This form a clip l0 secured to the inner side of one of the overlapping edges and extending across the slot to the opposite surface of the adjacent over lapping portion, as shown in Fig. 5. These, or any other guiding and retaining methods may be uti lized, as will be readily appreciated. As shown in Figs. 6 and 7, I may form a series of circumferential slots l2-l2 near the outer edge portion 3 and registering with corresponding .1 slots l3 adjacent the inner overlapping edge por tion 4, so that during the sliding of these over lapping edge portions a free ?ow of liquid thru the slots, which register at all times throughout the extent of the sliding action of these overlap ping edge portions. will be provided. The slots may be also formed around the walls of the cyl inder, if desired, but preferably the holes 2 are relied upon to permit the flow of liquid dye there thru. As shown in Fig. 3 I have indicated on a'reduced scale my cylinder with a package, cheese, or wound material 15 thereon, this winding opera tion being performed after the cylinder has been expanded to its greater radial dimensions, as shown in Fig. 2. For this purpose, a pair of cone shaped members having a base or plate 20 and projecting conical forms 2| are ?tted into the op posite open ends of the cylinder I, forcing the cylinder into expanded position as the open ends of the cylinder slide along the bevelled faces of the conical portions 2| at opposite ends, until the cylinder is in expandaed position with the top and has been an objectionable dii?culty on spools or yarns, cheeses, packages, and the like, whether the material being dyed is of cotton, rayon, silk, or synthetic ?brous material. While I prefer at present to utilize stainless steel for the collapsible and expansible spindle or cylindrical shell, because of the known capac ity of resiliency, yield, and spring of the same, it will be appreciated that any other metal, al loy, or synthetic plastic such as Koroseal, Vin ylite, Bakelite, or the like may be employed if desired. Also, while I prefer to embody the collapsible and expansible spindle in the form of a cylin drical shell or tubular member, as this is most suitable and customary for use in winding yarns and ?bres of various kinds thereon, I may utilize other forms suitable for different kinds of goods to be supplied to and carried thereby. I‘claim: An expansible and contractible spindle of the kind described, having a cylindrical body por tion and overlapping contacting edge portions, said overlapping portions being adapted to slide in contact with each other during expansion and contraction, a plurality of perforations thru the body portion, and slots thru the overlapping por tions substantially in register with each other during the expansible and contractible opera tions. HARRY C. WOLFENDEN.