Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1654936 A
Publication typeGrant
Publication dateJan 3, 1928
Filing dateMar 23, 1926
Priority dateMar 23, 1926
Publication numberUS 1654936 A, US 1654936A, US-A-1654936, US1654936 A, US1654936A
InventorsJones Harry J
Original AssigneeBaker & Co Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Method of making spinnerets
US 1654936 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Jan. 3, l



Patented Jan. 3, 1928.





Application filed March 28, 1926. Serial No. 96,821.

In spinnerets such as are emplo ed for the manufacture of rayon or artificia silk from cellulose in solution and the like it is desired to have a large number of minute orifices through which the solution may be extruded to form the strands of the thread,

and there are many difiiculties in drilling ofholes which can be practically produced in a spinneret; to provide a method of making a spinneret with orifices which have been drawn, and to obtain other advantages and results as may be brought out by the following description.

eferring to the accompanying drawings, in which the same reference numerals designate corresponding and like parts throughout the several views,

Figure 1 is an enlarged central longitudinal section of a spinneret body drilled for carrying out my invention;

Figure 2 is an enlarged similar section of a portion of the extruding end of the spinneret body with pieces of cored wire inserted in the drilled apertures shown in Figure 1;

Figure 3 shows said pieces of wire expanded in their apertures and with their ends made flush with the surfaces of the spinneret body;

Figure 4 is an enlarged view of a complete spinneret made in accordance with my invention, the core of the wire fillings shown in Figure 3 having been removed, and

Figure 5 is a plan of the same.

Referring to the specific embodiment of the invention shown in said drawings, 1 indicates a spinneret body of any suitable and well-known form and construction, although for convenience I have shown it a single piece of sheet metal drawn into cap shape. Preferabl for carrying out my invention, the extru 'ng end 2 of said body 1 is of sheet metal and apertures 3 are drilled or punched therein. Longitudinal pieces 4 of wire having a core 5 and envelope 6 are then inserted in said apertures 3, the wire preferably being of such size that said pieces frictionally fit 'in said apertures. The core 6 of said wire is wit of a material or materials which will be dissolved by a suitable reagent and is of a size which will form an extruding orifice of the desired minuteness when it is so dissolved, the envelope and the extruding end of the splnneret being of a material which will not be attacked by such a reagent.

After the pieces 4 are mserted in the apertures 3 they are expanded therein so as to engage the walls of said apertures imperviously and firmly enough to-resist displacement, said expansion being produced for example by pressure upon their outward ends by any suitable mechanism such as a hammer or press. After such expansion, the ends of the-pieces of wire are if necessary further made smooth and flush with the opposite sides of the extruding end late 2 of the spinneret by abrading or p0 ishing in any suitable and well-known manner. Preferably as a last step, in order to avoid any mutilation of the orifices by operations after they are opened, the cores 5 are dissolved out, leaving orifices 7 and the spinneret is complete as shown in Figures 4 and 5.

By my improved method, the extruding orifices of a spinneret may be as fine as are possible to obtain by drawing and thus much finer than it is mechanically feasible to drill. For example, if it was desired to make orifices two thousandths of an inch in diameter, I would produce'a compound wire with a core of that diameter and an envelope of about ten times that diameter and insert pieces of it about eleven thousandths in length in apertures drilled in a plate of about ten and one-half thousandths in thickness. The compound wire might have a copper or a silver core in a platinum or gold envelope, the end plate 2 of thespinneret being also of platinum or gold, in which case nitric acid would be employed as a reagent, or the core might be of iron in which case hydrochloric acid would be employed. Obviously various combinations of materials could be employed so long as the core could be dissolved out affecting the rest of the spinneret, and various sizes and proportions of parts could be em loyed as desired for various purposes. A so while I have described expanding pieces of compound wire in the apertures of the extruding plate, it will be obvious that they could be secured in any suitable and well-known manner and their end surfaces then made flush with the extruding plate or not as desired. The spinneret itself may be of any desired form or construction, so long as it has an extruding plate with a plurality of extruding orifices, and many other changes could be made in carrying out my improvements without departing from the spirit and scope of the 111- vention, so that I wish to be understood as not limiting myself except as required by the following claims when construed in the light of the rior art.

Having thus described the invention, what I claim is:

1. The method of making extruding orifices for a spinneret which consists in forming apertures, mounting in each of said apertures a piece of wire having a core, and dissolving out the cores of'said pieces of Wire. 7

2. The method of making extruding orifices for a spinneret which consists in forming apertures, expanding in each of said apertures a piece of wire having a core, and

dissolving out the cores of said pieces of wire.

3. The method of making extruding orifices for a spinneret which consists in forming apertures, expanding in each of said apertures a piece of wire having a core by pl'essu re'on its ends, and dissolving out the coresof said pieces of wire.

4. The method of making extruding orifices for a spinneret which consists in forming apertures, expanding in each of said apertures a piece of wire having a core by pressure on its ends, making said ends flush with the apertured' surface, and dissolving out the cores of said pieces of wire.

5. The method of making extruding orifices for a spinneret which consists in forming apertures, expanding in each of said apertures a piece of wire having a core by pressure on its ends, finishing the surfaces of said ends and dissolving out the cores of said pieces of wire.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2605173 *Dec 14, 1949Jul 29, 1952Ici LtdMethod for the production of spinnerets
US2618989 *Jun 1, 1948Nov 25, 1952Cupler John AMethod of manufacturing orificed members
US2623241 *Sep 8, 1950Dec 30, 1952Ici LtdSpinneret and its method of production
US2628417 *Jan 27, 1950Feb 17, 1953Saint GobainMethod of preparing perforate bodies
US2649670 *Jul 28, 1951Aug 25, 1953Ver Glanzstoff Fabriken A G FaMethod for reconditioning the extruding face of spinnerettes
US2679474 *Dec 31, 1949May 25, 1954Szmul Pajes WolfProcess of making optical zone plates
US2820374 *Jul 10, 1952Jan 21, 1958American Enka CorpProcess for making spinnerets for melt spinning
US2839783 *Oct 30, 1950Jun 24, 1958American Enka CorpSpinnerets for melt-spinning high polymeric substances
US2879676 *Feb 24, 1953Mar 31, 1959Heraeus Gmbh W CManufacture of spinning nozzles
US2923969 *Jun 12, 1953Feb 9, 1960 Certificate of correction
US2947028 *Nov 19, 1954Aug 2, 1960Owens Corning Fiberglass CorpApparatus for manufacture of fibrous glass
US3041894 *Dec 17, 1959Jul 3, 1962Cupler Ii John ASpinnerette production method
US3048060 *Mar 25, 1957Aug 7, 1962Union Carbide CorpMethod of making articles having internal surface of desired contour and articles produced thereby
US3056163 *May 18, 1955Oct 2, 1962American Viscose CorpSpinneret
US3060500 *Sep 1, 1959Oct 30, 1962Du PontComposite spinneret plate unit
US3075241 *Mar 8, 1956Jan 29, 1963Schiesser Ag TrikotfabrikenMultiple hole spinning nozzle and process of manufacture
US3088200 *Nov 10, 1960May 7, 1963Dale H BirdsallMagnetic shaping process
US3114966 *Feb 19, 1962Dec 24, 1963Felmada S AProcess of manufacture of spinnerets, particularly for spinning and extruding synthetic textiles, and a spinneret obtained by this process
US3187607 *Jul 24, 1962Jun 8, 1965Du PontSpinneret production
US3332764 *Nov 2, 1964Jul 25, 1967Knox Lab IncMethod of shrinking glass tubing
US3668756 *Apr 18, 1969Jun 13, 1972M V Bekaert SaMethod for making fluid channels
US3849947 *Jul 16, 1973Nov 26, 1974Bunker RamoMethods of squaring elements with a surface in which they are mounted
US3868794 *Jul 16, 1973Mar 4, 1975Owens Illinois IncMethod of finishing laser rods and fixtures therefor
US5162074 *Aug 7, 1989Nov 10, 1992Basf CorporationMethod of making plural component fibers
US5344297 *Jun 4, 1992Sep 6, 1994Basf CorporationApparatus for making profiled multi-component yarns
US5466410 *May 11, 1994Nov 14, 1995Basf CorporationProcess of making multiple mono-component fiber
US5551588 *Jun 6, 1995Sep 3, 1996Basf CorporationFor use in the melt spinning of fibers
US5562930 *Jun 6, 1995Oct 8, 1996Hills; William H.Distribution plate for spin pack assembly
US6530684 *Dec 6, 1999Mar 11, 2003Roche Vitamins Inc.Preparation of liquid dispersions
US6536940Jun 18, 2002Mar 25, 2003Roche Vitamins Inc.Preparation of liquid dispersions
US6722780Jan 31, 2003Apr 20, 2004Roche Vitamins Inc.Preparation of liquid dispersions
DE1115689B *Oct 25, 1956Oct 26, 1961Schiesser Ag TrikotfabrikenVerfahren zum Herstellen von Koerpern, wie Spinn- oder Mischduesen, mit Durchflusskanaelen
U.S. Classification76/107.6, 29/423, 29/522.1, 216/108, 29/424, 138/40, 29/896.6, 216/52, 451/54
International ClassificationD01D4/00, D01D4/02
Cooperative ClassificationD01D4/022
European ClassificationD01D4/02B