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Publication numberUS3023483 A
Publication typeGrant
Publication dateMar 6, 1962
Filing dateMar 3, 1959
Priority dateFeb 19, 1959
Publication numberUS 3023483 A, US 3023483A, US-A-3023483, US3023483 A, US3023483A
InventorsSteiner Walter
Original AssigneeSteiner Walter
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Rope made from synthetic thermoplastics
US 3023483 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

United States 3,023,483 ROPE MADE FROM SYNTHETIC THERMOPLASTICS Walter Steiner, Oberseenerstrasse 14, Winterthur, Switzerland Filed Mar. 3, 1959, Ser. No. 796,793 2 Claims. (Cl. 28-81) Up till now ropes made from synthetic thermoplastics were all characterized by having a smooth outer surface, the consequence being that the clothes pegs could not grip the rope securely, and therefore had the tendency to slip or slide along the surface of the rope in windy weather.

The object of the present invention is to overcome this difficulty. The invention relates in particular to ropes made from synthetic thermoplastics intended for the purpose of hanging up clothes to dry and is featured in particular by the outer covering surface having good gripping properties.

The accompanying drawing shows various forms of application of the embodiment of the present invention, by way of example only, wherein:

FIG. 1 is a side elevation of a portion of a rope provided with longitudinal parallel grooves;

FIG. 2 is a transverse sectional view of the form of the invention shown in FIG. 1; I

FIG. 3 is a side elevational view of a modified form of the invention wherein the outer surface is provided with helical grooves;

FIG. 4 is a transverse sectional view of the form of the invention shown in FIG. 3;

FIG. 5 is a side elevational view of a portion of rope wherein the outer covering is provided with a filling made from loose filaments;

FIG. 6 is a transverse sectional View of the form of the invention shown in FIG. 5;

FIG. 7 is a side elevational view of a form of the invention provided with an inner core of non-stretchable material and with a roughened outer surface;

FIG. 8 is a transverse sectional view of the form of the invention shown in FIG. 7;

FIG. 9 is a side elevational view of a rope of substantially triangular cross-sectional configuration;

FIG. 10 is a transverse sectional view of the form of the invention shown in FIG. 9;

FIG. 11 is a side elevational view of a form of the invention having a square cross-sectional configuration;

FIG. 12 is a transverse sectional view of the form of the invention shown in FIG. 11;

FIG. 13 is a side elevational view of an embodiment of the invention having cut-outs forming narrow ledges in the rope;

FIG. 14 is a transverse sectional view of the form of the invention shown in FIG. 13.

The covering outer surface of the rope 10 made from synthetic thermoplastics, as depicted in FIGS. 1 and 2 is provided with longitudinal parallel grooves 11 between which are formed corresponding ridges 12 which provide a good gripping surface for the clothes pegs, so that any tendency on the part of the latter to slip or slide along the rope is effectively prevented.

The rope shown in FIGS. 3 and 4 differs from the form illustrated in FIGS. 1 and 2 in that its outer covering surface is provided with helical grooves between which are also formed sharp edged ridges 12a which assure a good gripping surface for the clothes pegs used to hang up the clothes to dry.

FIGS. 5 and 6 represent a rope made from synthetic thermoplastics used in the main for hanging up clothes to dry, which consists essentially of a comparatively thin walled tube 10a, the outer covering surface of which is provided with sharp edged ridges 12b (FIG. 5). The tube 10a is provided with a filling made from loose synthetic filaments 120, so that the rope, on the clothes pegs being fixed, is slightly compressed, thus affording a good grip and eifectively preventing any tendency on the part of the pegs to slip or slide.

The rope 10 as illustrated in FIGS. 7 and 8 represents a further application of the embodiment of the invention. Here good gripping properties are secured by the outer covering surface of the rope being roughened, so that the protruberances 13 assure a good grip for the clothes pegs, thus preventing any tendency of the latter to slip. In order to prevent undue stretching of the rope, the latter is provided with a core 14 made from material that has no tendency to stretch. The outer covering material being formed of thermoplastic material is relatively stretchable with respect to the non-stretchable center core and better enables a clothespin and like article to safely with increased friction engage the rope 10.

FIGS. 9 and 10 show a rope 10 made from synthetic thermoplastics and intended for hanging up clothes to dry, the cross section of which is triangular with sharp outer edges. The outer surfaces or faces are concave, so that hollow depressions 15 are formed in the direction of the axis, into which the clothes pegs project on being fixed to the rope, a good grip being thus secured. These hollow surfaces can also be roughened. As seen from the illustration 9 the rope is provided with a twist.

FIGS. 11 and 12 show a rope 10'that differs from the one described above only by its cross section being square instead of triangular. This is equally provided with a core 14 to prevent undue stretching in the longitudinal direction. The hollow concave surfaces 15 form sharp edges at their junction, which give Way and are slightly deformed on the clothes pegs being fixed, thus affording a good grip and effectively preventing any tendency of the pegs to slip or slide on the rope. The pegs should be fixed so as to encompass two of the projecting edges 15.

FIGS. 13 and 14 show a rope 10 made from synthetic thermoplastics intended primarily for hanging up clothes to dry, in which narrow ledges or cross pieces 16 are spaced along the length of the rope, these ledges being angul-arly displaced relatively to one another by and abutting on either side on circular stops 17. The clothes pegs are fixed on the narrow crosspieces 16 and sliding or slipping is prevented by the abutment stops 17.

These ropes made from synthetic thermoplastics can equally be used to hang up any other goods to dry, such as paper, woven material and so forth.

I claim: 9

1. A rope comprising in combination a center core made of nonstretchable material, an outer covering about said core made of relatively stretchable synethetic plastic material, said outer covering having a friction inducing gripping surface with narrow ledges formed thereon by substantially semicylindrical cutouts in said outer covermg.

2. A rope according to claim 1, wherein said narrow ledges are angularly displaced with regard to one another.

References Cited in the file of this patent UNITED STATES PATENTS 414,090 Taylor Oct. 29, 1889 1,659,556 Bankwitz Feb. 21, 1928 1,773,969 Dreyfus et a1 Aug. 26, 1930 1,902,953 Hazell Mar. 28, 1933 2,369,876 Warren, Jr Feb. 20, 1945 2,434,533 Wurzburger J an. 13, 1948 2,743,511 Genovese May 1, 1956 2,894,366 Leckie July 14, 1959

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US414090 *Dec 12, 1888Oct 29, 1889 Draw-plate
US1659556 *Mar 18, 1927Feb 21, 1928Leslie N HemenwayClothesline
US1773969 *Sep 8, 1928Aug 26, 1930Celanese CorpProcess of and apparatus for making artificial filaments
US1902953 *Mar 11, 1931Mar 28, 1933Revere Rubber CoMethod and apparatus for the manufacture of filamentary material
US2369876 *Sep 3, 1942Feb 20, 1945Jr Richard F WarrenInorganic fiber rope
US2434533 *May 24, 1945Jan 13, 1948Paul D WurzburgerImitation filaments, ropes, yarns, and the like
US2743511 *Nov 5, 1952May 1, 1956Nat Plastic Products CompanyScouring pad and filament
US2894366 *Apr 7, 1958Jul 14, 1959Leckie Claude PerrinLead lines for fish nets
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3158983 *Mar 18, 1964Dec 1, 1964Tlamicha Libuse AntonieDelustered plastic thread or textile
US3180785 *Mar 21, 1962Apr 27, 1965Kendall & CoSynthetic fibers with increased surface friction
US3280847 *Sep 19, 1961Oct 25, 1966Dow Chemical CoExtrusion die
US3388198 *Jan 27, 1966Jun 11, 1968Monsanto CoMethod for producing iridescent filament
US3541198 *Mar 19, 1969Nov 17, 1970Ueda KeizoProcess for manufacturing composite filaments
US3864443 *May 27, 1970Feb 4, 1975Hopkins ArthurMethod of making light-weight concrete aggregate
US4095790 *Apr 8, 1977Jun 20, 1978Bronislaw SwiecickiTennis racket with tensioned one-piece ball-striking friction imparting grid
US4349198 *Dec 8, 1980Sep 14, 1982Stelck Larry WString for sporting goods
US4377288 *Apr 13, 1981Mar 22, 1983Sulprizio Michael STennis racket
US4860531 *Dec 16, 1987Aug 29, 1989Wells D PhillipsRacquet strings
US5214244 *Dec 6, 1991May 25, 1993Science Applications International CorporationStrumming resistant cable
US5307614 *Sep 24, 1992May 3, 1994Toray Industries, Inc.Composite crimped yarn and woven fabric
US5346212 *Feb 11, 1993Sep 13, 1994Siegfried KueblerRacket for ball games and string portion or string therefor
US5422171 *Feb 7, 1994Jun 6, 1995Toray Industries, Inc.Composite crimped yarn and woven fabric
US5459991 *Feb 17, 1995Oct 24, 1995Toray Industries, Inc.Composite crimped yarn and woven fabric
US6182432 *Feb 19, 1999Feb 6, 2001Minoru TakahashiHauling cord
US7250213Oct 16, 2003Jul 31, 2007American Wire Tie Inc.Textured wire tie and methods of making same
US8641944Dec 23, 2009Feb 4, 2014Oliver WangSynthetic yarn
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US20080238176 *Mar 28, 2007Oct 2, 2008Oliver WangSynthetic yarn having a multi-yarn effect
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US20130026316 *Jul 31, 2012Jan 31, 2013Nite Ize, Inc.Tie wrap for bundling objects
US20140103273 *May 7, 2012Apr 17, 2014Nissei Electric Co., Ltd.Resin Tube for Guide Wire, Method for Manufacturing Resin Tube for Guide Wire, and Guide Wire
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WO1991011549A1 *Mar 30, 1990Aug 8, 1991Chen Sam Hsin ShunRidged racquet string
Classifications
U.S. Classification428/394, 57/248, 57/206, 428/397, 57/250
International ClassificationD07B1/02, D06F53/02
Cooperative ClassificationD06F53/02, D07B1/162, D07B5/005
European ClassificationD06F53/02, D07B5/00C