US1890291A

US1890291A - Insttlated electric conductor and the method of

Info

Publication number: US1890291A
Authority: US
Publication date: 1932-12-06
Anticipated expiration: 1949-12-06

Description

Dec. 6, 1932. A. P. HINSKY INSULATED ELECTRIC CONDUCTOR AND THE IE'I'HOD OP MPLYING COLORED SURFACES THERETO Filed larch 17. 1932 ATT NEY Patented Dec. 6, 1932 UNITED STATES ANTHONY I. HINSKY, OF BROOKLYN, NEW YORK, ASSIGNOR TO E. 11'. TROTTER & CO-,

PATENT OFFICE.

OF BROOKLYN, NEW YORK, A. CORPORATION OF NEW YORK INSULATED ELECTRIC CONDUCTOR AND THE METHOD OF APPLYING COLORED SURFACES THERETO Application filed March 17, 1932. Serial No. 599,431.

This invention relates to insulated circuit wires as well as to a method of producing wires of this class, the fibrous jacket of which is treated with a waterproof and flame retarding compound or compounds as well as Witha colored coating in the form of a powdered mineral and a final coating of transparent or colored material to give to the finished product a predetermined color value to distinguishit from other conductors; the invention further relates to the use of the method herein defined in the treatment of diately after applying the waterproofing or fire repellant compound thereto or while said compound is still in a warm, tacky state so that the powdered mineral will adhere to the conductor and form a coatin thereon, permittin the application of a nal coating or film w ich Wlll operate to support and pro tect the colored-mineral on the conductor;

a further object being to provide a method of producin colored conductors of the class specified, w erein the fibrous jacket of the conductor is first treated with two compounds, one of greater viscosity than the other; a further object being to provide a method of producin condiictors of the class specified, wherein t e. separate compounds,

minerals or coatings are applied in a succes-- sive series of operations, thereby saving unnecessary handling of the product in the process of manufacture and also increasing the volume production thereof; and with these and other objects in view, the invention consists in a conductor of the class and for the purpose specified, constructed in accordance with the method more fully hereinafter described and claimed.

The invention is fully disclosed in the following specification, of which the accompanying drawin forms a part, in which the separate parts 0 my'improvement are designated by suitable reference characters in each of the views, and in which:

Fig. 1 is'a diagrammatic view illustrating theseveral steps in the method of producing a conductor according to my invention; and,

Fig. 2 is a diagrammatic view of a part of a conductor indicating the application of the separate insulating, Waterproof and fireproof, and coloring materials and compounds thereto.

For the purpose of illustrating one mannor of producing conductors in accordance with my invention, I have diagrammatically illustrated in Fig. 1 the several ste s in the method and the apparatus employe for this purpose. At this time, it will be understood that I am not restricted to the s'pecifictype or arrangement of apparatus nor to the'speclfic steps herein disclosed.

In the drawing, '5 representsfa rel'of an insulated conductor strand consisting .-.of 'a wire 6, a body of rubber 7 and a fabricfjacket 8 as seen in Fig. 2 of the drawin The jacket 8 is preferably in the form 0 a cotton braid, but may be of any desired texture and structure. The insulated wire 5a from the reel 5 first passes into and through a tank v 9 containing a waterproofing com o'sition or saturant 10, the latter bein heate by a suitable heater 11,- positioned below the tank 9,

and the wirepas's'es over a guide roller 12 downwardly into the tank and around two tank. In passing through the tank 9, the

compound 10 is applied to the jacket 8 as" indicated in Fig. 2, and this compound thoroughly impregnates the fibres of the jacket as will be apparent.

. From the tank 9, the treated wire 51; passes into arid through a tank 16 containing another compound 17 preferably of greater viscosity than the compound 10, and also preferably having fire repellant characteristics. The compound 17 is maintained in a heated state by a suitable heater 18. In passing into and through the tank 16, the wire first passes over a guide roller 19 downwardly around two sheaves 20 and 21, and then over another guide roller 22. i

From the tank 16, the wire thus treated passes directly into a hopper or container 23 in which is disposed a powdered colored min:

eral. 24, which adheres to the compound 17 by reason of the fact that. the latter is still in a slight] heated or plastic or tacky state, but not su ciently so to in any material way obliterate the color value of the powdered mineral. In passing through the hopper 23, the wire travels around a sheave 25 and then through a die or other device 26 for .removing the surplus powder. From the die, the wlre passes around a guide roller or pulley 27, and then into and through another tank 28 containing a solution 29, which forms the final coating of the conductor, and which may consist of a transparent material or a colored material of a color consistent with that of from the wire or conductor by agitation rather than by use of the die 26..

After passing through the 'tank 28, the treated conductor passes through a die 31 which applies the coating 29 to the conductor in a smooth, even and polished state to produce a neat and finished appearance. When the final coating is thoroughly dry, the conductor is coiled upon a receiving reel 32.

In Fig. 1 of the drawing, I haye indicated at a: and w, two gaps inthe wire or conductor, the ga m being disposed between the tanks 9 an .17 and the gap a2 between the die 31 and reel 32. It will be understood that between these points, the wires may be passed through dryers or other drying means to facilitate the setting of the compounds or coatings to. the wire, as will be apparent. However, it will be understood that the gap at this not absolutely necessary, nor in fact, 15 the gap :0 required.

It will also be a parent that my invention 1s not limited to t e application of two distinct coatings, or com ounds to the fibrous jacket 8 prior to applylng the powdered mineral thereto, as a single compound may be employed, upon which the powdered mineral 1s irectly ap lied. The powdered mineral may consist o? a compound of suitable substances containing a' color pigment of the desired color, which after compounding and drying into a harder solidified state, is broken up and ground into powdered or granular form to facilitate its application to the conductor in the manner herein set out.

This powdered substance may be produced from paraflin, carnauba wax, synthetic wax and a small percentum of synthetic resin compounded with each other and with the sisting compound, but will merely adhere thereto because of the sticky or tacky characteristics of the compoun With my improved process, the inexpensive black and waterproof, fire repellent compounds may be employed in the treatment of the fabric jacket, without danger of distortion in the color value of the powdered mineral, and this result is accomplished by using the powdered colored mineral rather than a colored solution, in which latter instance, the black compound would tend to change or modify the true color value of the resulting conductor.

It will also be apparent that whileI have referred to the application of a powdered mineraltoa compound while the compound is in a heated or tacky state, that the compound may be applied and allowed to dry and cool or if it is of a consistency that will not produce a. tacky or sticky outer surface, a powdered mineral may be employed which can be heated sufiiciently to cause adhesion to the compound when applied thereto. It will be cient to cause adhesion thereof to the compound. It will be further understood that the compound need not necessarily be heated in its application to't-he'insulation of the conductor, as the compound may be dissolved in a solvent and apphed cold.

It will be understood that my invention is not limited to the production of a cable in accordance with the specific elements herein defined nor in accordance with the process or method set out, and various other changes-in and modifications of the structure and method herein defined may be made within the scope of the appended claims without depart-- ing from the spirit of the invention or sacrificing-its advantages.

Having fully described my invention, what I claim as new and desire to secure by Letters 1. The process of treating the insulated jacket, then applying to the jacket a pow- 1E;

sion of the dered colored substance having sticky characteristics when subjected to heat, and then covering the powdered substance with a film, retaining said substance against displacement from the jacket of the conductor.

. 2. The process of treating the insulated jacket of an electric conductor which comprises first applying a liquid compound to the acket, then applying a powdered colored substance including a binder to the jacket treated with the compound, and then covering the powdered substance with a film, retaming said substance against displacement from the jacket of the conductor, and applying the powdered substance to the jacket while the compound is in a plastic state to insure adhesion between the powdered substance and compound.

3. The process of treating the insulated jacket of an electric conductor which comprises first applying a liquid compound to the jacket, then applying a powdered coating comprising a color pigment and a binder to the jacket treated with the compound, and then covering said coating with a film of transparent material forming an outer protector sheath for the powdered coating, through which the color value of the powdered coating is visible. 1

4. A process of treating the fibrous covering of an insulated electric conductor which consists in first applying a blacl: waterproofing) saturant to said covering, then applying a lack flame repellant compound thereto, then applying a colored powdered mineral including a wax binder to the covering treated with the compounds so as to cause adhesion of the powdered mineral to the con: ductor, and then enclosing the conductor thus formed in an outer film for supporting the powdered mineral thereon.

5. A process of treating the fibrous covering of an insulated electric conductor which consists in first applying a black waterproofing saturant to said covering, then applying a black flame repellant compound thereto, then applying a colored powdered mineral including a wax binder to the covering treated with the compounds so as to cause adhepowdered mineral to the conductor, then enclosing the conductor thus formed in an outer film forsupportingv the powdered mineral thereon, and employing in the film coating a material of a color value consistent with that of the powdered mineral.

6. A process of treatingthe fibrous covering of an insulated electric conductor which consists in first applying a black waterproofing saturant to said covering, then applying a black flame repellant compound thereto, then applying a colored powdered mineral including a binder to the covering treated with the compounds .so as .to cause adhesion of the powdered mineral to the conductor, removing the surplus powdered mineral from the conductor, and then enclosing the conductor thus formed in an outer film for supporting the powdered mineral thereon.

7. The herein described process of applying an opaque colored jacket to the insulation of an electric conductor, which consists in first treating the insulation with awaterproof and flame repella-nt compound, then covering the treated insulation with a jacket consisting of colored opaque particles having sticky characteristics when subjected to heat and adhering to said treated insulation, and then enclosing said jacket in a coating maintaining the colorvalue of said jacket.

8. The herein described process of applying an opaque colored jacket to an elongated, fibrous strand, which comprises first-treating the strand with a compound having sticky characteristics, then covering the treated strand with a jacket consisting of colored opaque particles including a binder, said particles adhering to andenveloping said com pound, and then enclosing said jacket in a coating maintaining the color value of said jacket and giving predetermined color value to said strand. v

9. A process of treating a fibrous strand to give predetermined color value thereto, which comprises first treating the strand with a heated fiuid,. then applying a colored powdered mineral including a binder to the compound on the strand while in a heated state to insure adhesion of the powdered mineral thereto, removing the surplus mineral to form a colored jacket evenly disposed on said strand, and then enclosing the colored jacket with a coatin maintaining the powdered substance of t e jacket against accidental displacement from the strand.

10. The herein described method of pro-- ducing elongated fibrous strands of the class described with outer coatings of predetermined color, which consists in first treating the strand with a compound impregnating the fibres thereof, then applying another compound to said strand having a viscosity greater than that of the first compound, then applying a colored powdered substance comprising a color pigment and a wax-like bind er to the last compound to cause adhesion be- 1 tween the powdered substance and viscous compound without disturbing the outer color value of the powdered substance, and then applying a retaining coating or film to said powdered substance maintaining the colorvalue ofsaid powdered substance.

11-. The process of treating a predetermined surface, which comprises first applying a compound thereto, then applying a powdered coating comprising a colored pigment and a binder having sticky characteristics to the compound, and then covering the powdered coating with a film retaining said L(oating against displacement from the surace.

4- 5 1,aeo,ae1

12. In the art of applying coatings to a fibrous, strand-like body, a compound having sticky characteristics applied directly on saidbody, a colored powdered substance in- 5 cludin a binder enveloping the compound and ad ered thereto by the'sticky characteristics of the compound, and an outer coating enveloping the powdered substance and retainin the color value thereof.

13. n the art of electrical insulation, an

electric wire with an insulating jacket, said jacket being treated with a waterproof and fire resistant compound, a colored powdered coating including a binder enveloping the compound and adhered thereto, and an outer coating, of transparent material enveloping said coating. In testimony that I claim the i foregoing as my invention I have signed my name this 16th day of March, 1932.

ANTHONY P. HINSKY.