US1366166A - Squirting-nozzle for use in the manufacture of strips and the like from viscose and analogous matter and for similar purposes - Google Patents

Description

I J. E. CRI'GGAL. SQUIRTING NOZZLE FOR USE m THE MANUFACTURE OF STRIPS AND THE LIKE FROM VISCOSE AND ANALOGOUS MATTER AND FOR SIMILAR PURPOSES.

APPLICATION FILED FEBA, 1919.

' 1,366,166. I Patehted Jan.18, 1921 IN VENTOR PATENT OFFICE.

UNITED: STATES JOHN EDWARD CRIGGAL, OF COVENTRY, ENGLAND, ASSIGNOR TO COURTAULDS LIMITED, OF LONDON, ENGLAND.

SQUIRTING-NOZZLE FOR USE IN THE MANUFACTURE OF STRIP S AND THE LIKE FROM VISCOSE AND ANALOGOUS MATTER AND FOR SIMILAR PURPOSES.

Specification of Letters Patent.

Application filed February 4, 1919. 'Serial-No. 274,969.

To all whom it may concem:

Be it known that I GAL, a subject of the ling of Great Britaip, residing at 28 Queens road, Coventry, ii the county of Warwick, England, have invented new and useful Improvements in Squirting-Nozzles for Use in the Manufacture of Stri )S and the like from Viscose and Analogous atter and for Similar Purposes, of which the following is a specification.

The object of this invent-ion is to provide squirting nozzles for use in the manufacture of strips, and the like, from viscose, or analogous matter, and for similar purposes, which nozzles are more economically and accurately manufactured than has hitherto been the'case with such nozzles, while they are stronger and not liable to the deforma: tion to which such-nozzles as hitherto made have been liable. Such nozzles when made of such expensive metal either to be made very thin, or of such thickness as renders them very expensive. When made thin the pressure of the material which is squirted through thenozzle has causedthe portion in which the slot is formed to be bulged outward, and consequently the slot in the said portion has been distorted, a further disadvantage zles it is very difficult and expensive to form the slot by perforating the disk which forms the portion in which the slot has to be formed.

According to the-present invention the por- 25 tion in which the slot is, or slots are, made is formed in parts so that the slot, or slots, can be made and finished, 61' polished, from the side of one, or more of such arts and he therefore readily and accurate y formed in 4.0 comparatively thick material which therefore can be of a cheap kind, (as compared with platinum for example) provided that it be such as will'not be injured by the matter squirted and, which will not injure the said matter.

. ll will describe, with reference to the ac: con'ipanying drawing, which it are acquainted for making a nozzle in accordance with this invention, it being understood that I do not limit myselfto the precise details, nor to the precise way hereinafter described for carr ing. out the manufacture of the-said .n'ozz es. It is presumed for the sake of description that the nozzle is Jonn EDWARD CRIG- nozzle conslsts of as platinum have.

being that in such noz-- the best manner, with it and then, when t to be used in making strips, from fscose by squirting it into a setting bath thro d gh a single slot in the nozzle. Figure 1 represents the completed nozzle 1n perspective. Fig. 2 is a plan of the disk. Fig. 3 is a plan, and Fig. 4: is a vertical section of the nozzle.

facture of the nozzle and before the disk (shown in section above it) is put, and secured, in place.

Thenozzle is made from an alloy of nickel and copper, such, for example, as that known on the market as Monel metal, the portion in which the slot is forme being preferably rolled hard and being of, a thickness not liable to be materially distorted under the pressure to which it is subjected by the viscose in squirting. The body-part A of the a tubular portion a with an outward flange a at one end for securing the nozzle in place on the tube of the squirting apparatusand, at the other end, with an inward flan e a a little distance from the said end. ii disk B,divided diametrically into two parts, or halves, (marked 12 and b respectively) is provided and, in the straight side of one (5 of these half disks, a slot Patented Jan. 18, 1921.

Fig. 5 is a vertical section of the body part in the course of the manu-' I) of the required size is formed by cutting first named half disk, when the two half disks are placed to ether constitutes the second side of the s 0t. constituting the disk B, are then bored with a suitable number of shown at b) in a circle corres onding with the part ofthe disk which, w en inplace, comes against the'inner flange a? of the body part of. the nozzle. The disk B is then clamped in a lathe and its circumference is turned to truly fit the interior of the bodypart A above, and upon, theinner flange a, the said body part being preferably also turned truly at the part where the disk isto 'e disk is in place, rivet 'lhe said two parts rivet holes (six are holes a corresponding to those in the disk, B, are drilled in the inward flange a and the disk B is firmly and trulysecured in place by riveting the disk and flan e together by rivets While the body part is supported upon any suitable post.

Any portion of the body part A which may project beyond the disk, (such as that shown at a in and the-ed e rounded 01%, as at a, and the disk, or end, and any other desired part, of the nozzle can be plated with any suitable metal, such as gold, for example, if desired.

Although I have described the shaping and finishing of the half disks as though each half disk were operated upon separately, it will be understood that several half disks will generally be placed together and be simultaneously subjected to each of the operations described. It will also be understood that, although I have described the nozzle as being provided with but one long slot that any number of such slots can be employed so that one, or more than one, strlp, or the like, can be squirted through each nozzle (the disk being then made in as ig. 5) can then be removed of the body part is preferably many parts as may be necessary) and that the slots, or the like, may be of any shape which can be formed in half disks, or two, or more, parts ofidisks, in the manner hereinbefore explained.

What I claim is 1. A squirting nozzle for discharging cellulose solution to a setting bath, comprising a divided plate, one part of said plate being recessed at its meeting edge to form wholly therein a discharge openlng for the nozzle.

2. A squirting nozzle for discharging cellulose solution to a setting bath, comprising a body part-having inwardly extending flange means, a divided plate secured to said flange means, one part of said plate being recessed at its meeting edge to form wholly therein a discharge opening for the nozzle.

In testimony whereof- I have signed my name to'this specification in the presence of two subscribing witnesses.

JOHN EDWARD CRIGGAL.

Witnesses FREDERICK J oHNsoN, ALnEN'A. OAKES.

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