US3254859A - Coiling strip and assembly - Google Patents

Coiling strip and assembly Download PDF

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Publication number
US3254859A
US3254859A US187831A US18783162A US3254859A US 3254859 A US3254859 A US 3254859A US 187831 A US187831 A US 187831A US 18783162 A US18783162 A US 18783162A US 3254859 A US3254859 A US 3254859A
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strip
coiling
magnetic
polarized
coiled
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US187831A
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English (en)
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Reisch Siegfried
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/34—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables
    • B65H75/36—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables without essentially involving the use of a core or former internal to a stored package of material, e.g. with stored material housed within casing or container, or intermittently engaging a plurality of supports as in sinuous or serpentine fashion
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
    • H02G11/02—Arrangements of electric cables or lines between relatively-movable parts using take-up reel or drum

Definitions

  • This invention relates to a coiling strip having a tendency to coil, for various applications and basically comprehends all kinds of flexible striplike elements as well as wide webs which are used in extended position and kept in a coiled condition.
  • the tapes according to the invention may be applied, the following may be mentioned only as examples: Measuring tapes, clotheslines, dragropes for vehicles and other pulling and retaining ropes, information carriers in tape form, such as punched tapes for teletype and similar systems, also multi-core electric leads for portable appliances for domestic use, for traveling or other purposes, such as flatirons, cooking appliances, hand-sets, electric shavers, fans, flash units, electromedical equipment, laboratory and surveying instruments and others.
  • strips having a coiling tendency and suitable for the above-mentioned applications are designed to consist, of at least one thin, flexible layer of a material which establishes a field of force which provides such surface polarization that there will be no attraction between the length portions of the strip when the same is extended whereas during coiling up the adjacent outsidev surfaces of opposite polarity attract each other to resist uncoiling of the strip.
  • the magnetic tape used for manufacturing the coiling strips according to the invention may consist, e.g., of a vinyl tape containing magnetic particles in such a fine division that it has permanent-magnetic properties throughout its surface.
  • the polarization may be chosen lin view of the intended application.
  • Such magnetic tapes are being sold in the United States, e.g., under the name Magnyl.
  • the flexible carrier layer of the coiling strip may be provided at least on one side with appropriately spaced elements of magnetic material which is polarized in a direction normal to the surface.
  • the flexible carrier layer is provided on both sides with a magnetic tape, known per se, having alternating longitudinal zones of opposite polarity, opposite pole strips being disposed close to eachother at the side edges.
  • each of the cores ⁇ of the lead may be individu-al- 4which carries the coil former.
  • the strip will be spirally coiled with adjoining outside surfaces or in the form of a helical surface wound on'edge or -in the shape of a cone. In the two arrangements mentioned last, the strip will be twisted about its longitudinal axis when extended.
  • the same is secured at one end to a coil former, which is freely rotatably mounted on a shaft having two finger grips.
  • the outer end of the strip is suitably connected to a flat housing, the side walls of which are provided with longitudinal slots for inserting the shaft
  • the housing has attached to it the plug for connection to the mains and the coil former is provided with'plug sockets for connection to the load.
  • webs which can be coiled up such as plans, drawings, projection screens, wall maps, roller blinds or the like, may be provided with magnetic tapes having a coiling tendency on one side or both sides at least on the two longitudinal edges of the web and, if desired, in the form of a plurality of equally spaced strips.
  • FIG. 1 is a longitudinal sectional view of a coiling strip element consisting of a magnetic tape layer.
  • FIGS. 2a and 2b are longitudinal sectional views showing strip elements having coverings of magnetically polarized material.
  • FIG. 3 is another longitudinal sectional view showing a thin strip element having electrostatically polarized coverings.
  • FIG. 4 shows a magnetic strip as it begins to coil up.
  • FIG. 5 A magnetic tape with an embedded electric lead on a coil former is shown in FIG. 5 in a side elevation and in FIG. 6 in a sectional-view taken through the coil former.
  • FIG. 7 shows a similar electric line with a housing for the coiled-up strip.
  • FIG. 8 shows a two-core electric lead with another embodiment of the magnetically polarized covering.
  • FIGS. 9, 10 and 11 are transverse sectional views showing three further magnetic strips which can be coiled up and are provided with electric conductors.
  • FIG. 12 shows a strip provided with spaced magnetic coverings.
  • FIG. 13 shows a wide web provided with a plurality of stripllike magnetic coverings.
  • FIGS. 14, 15 and 16 show three embodiments of striplike electric leads inserted in the form of horizontal or inclined adjoining helical convolutions in a housing.
  • FIG. l shows the simplest form of a magnetic strip 1 which may be coiled up and which consists only of a thin, permanent-magnetic tape which is polarized in a direction normal to its sunface.
  • the strip 1' shown in FIG. 2a consists of two layers, name-ly, a thin carrier layer 2 of soft, flexible material having no inherent coiling tendency and designed for the respective applicati-on, eg., .for use as a measuring tape, and a magnetic tape 3 which is polarized transversely to its surface and firmly bonded to the layer 2 throughout its lengt-h.
  • FIG. 2b shows a suitable embodiment of a strip l, in which lthe intermediate carrier layer 2, which tmay consist of two electrical conductors embedded in a flat insulating covering, is covered on both sides with atransve-rsely polarized .magnetic layer 3.
  • lthe intermediate carrier layer 2 which tmay consist of two electrical conductors embedded in a flat insulating covering, is covered on both sides with atransve-rsely polarized .magnetic layer 3.
  • one surface zone forms a magnetic ,north pole and the other a south pole throughout the strip element l1 or 1".
  • FIG. 3 shows a strip element which is similar in construction to that of FIG. 2b but has a carrier strip 2 provided on both sides with electrostatically polarized coverings 4 of a suitable material. Owing to the relatively small force action, this embodiment provided with coverings having an electrostatic effect may be used primarily in very thin strips, e.g., measuring tapes or, possibly, carrie-rs of stored information.
  • the oppositely polarized edge zones eig., north and south -poles or positive and negative poles
  • the strip may consist only of a magnetic tape 1 which is polarized transversely to the tape surface and which is designed to form, eg., a measuring tape or a punched tape for teletype.
  • the forces of attraction must tact through the carrier layer 2, which for this reason must be thin enou-gh. A correspondingly stronger action will be achieved with strip elements having a magnetic covering on both sides.
  • the first corresponding areas in one convolution are in ⁇ registry with the second corresponding .areas in an adjacent convolution so that coiling is facilitated and uncoiling is resisted.
  • the coiling is effected by hand.
  • the forces of attraction effective after the format-ion of the first convolution y may be sufficient ifo-r a fully automatic further coiling of the strip. This will obviously depend on a coaction of various factors, such as the force of attraction per unit of area and the counteracting forces to be overcome, eg., the stitness of the strip and any gravity components which may be effective.
  • FIGS. 5 and 6 show a particularly desirable design of a coiling strip 5, which is here indicated to consist of a two-core electric lead.
  • the strip 5 having oppositely polarized surfaces is secured at one end to a disc-shaped coil former 6, which has inserted in its central bore a shaft 7 with two grip plates 8, at Which the coil former may be gripped with the fingers to initiateV the coiling operation.
  • the strip 5 is provided at its outer end with the plug 9 and the coil former 6 is provided at its end face with a pair of plug sockets 10 for connection to the load.
  • These plu-g sockets may alternatively be disposed on the peripheral surface of the coil former.
  • FIG. 7 A development of this electric lead having a coiling tendency is shown in FIG. 7, where the outer end of the strip 5 is secured to a flat housing 11, which is provided in both end Walls with a longitudinal slot 12 and carries at its bottom the plug prongs 13 for connection to the mains.
  • This housing 11 serves for accommodating the completely wound-up coil, the shaft ends 7k of the coil yformer 6 being inserted into the longitudinal slot 12.
  • FIG. 8 shows a strip element having a different magnetic covering:
  • the carrier ta-pe 14 of insulating material has two electric conductors 14 embedded therein and is p-rovided on both sides with a commercially available magnetic tape element 15 having the pole arrangement shown, i.e. comprising longitudinally extending magnetic zones of alternating polarity N-S-N-S. Tape elements thus magnetized will not exhibit any magnetic activity on the outside surface alone and must be bonded to both sides of the carrier tape as indicated and in relatively inverted positions so that zones of opposite polarities will be provided at opposite sides of each longitudinal edge. It is apparent that the same attraction effect as in the above-described examples having coverings magnetized transversely to their surface will be achieved between the surfaces contacting each other during the coiling operation.
  • FIGS. 9 and 10 show two particularly simple designs for coiling two-core electric leads.
  • two insulated electric conductors I5 are attached to opposite edges of a magnetic tape 3 polarized transversely to its surface.
  • longitudinally extending, insulated electric conductors 14 are embedded in the cross-section of a magnetic tape 3, which is polarized transversely to its surface.
  • FIG. ll shows a suitable profile of a coiling strip similar to FIG. l0, which is formed with a longitudinal groove 3 to prevent a transverse displacement in the strip coil.
  • FIG. 12 shows another modification of the coiling strip, in which the flexible carrier layer 2 is provided on both sides with spaced flat elements 18 of magnetic material. It is obvious that these elements must contact each other when the strip is being coiled up.
  • FIG. 13 illustrates a general field of application of the coiling strip elements laccording to t'ne invention.
  • relatively wide webs19 such as plans, drawings, projection screens, wall maps, roller blinds or the like are provided with coiling magnetic tapes 3 at least on both longitudinal edges and preferably in the form of a plurality of equidistant strips.
  • These wide webs may be provided with the magnetic tapes on both sides and will be provided only at the edges in elements having an outside surface serving a specific purpose, such as plans, wall maps etc.
  • FIGS. 14, l5 and 16 show two desirable embodiments of electric leads which are helically coiled and accommodated in a housing, with ⁇ which they are firmly connected to an appliance, such as a telephone set.
  • FIG. 14 shows a low, box-shaped housing 20 formed with an annular groove 21.
  • the magnetic tape 22 having the electric conductors embedded therein is secured at one end to the bottom of this guide groove and during the coiling operation is helically inserted into the groove 21 with opposite surfaces abutting.
  • the terminals 23 are attached to the outside of the housing 2t).
  • FIG. 15 shows a modification of FIG. 14.
  • the housing 24 is provided on each end face with a groove 25 and the partition 26 is formed with an oblique slot 2-7, through which the magnetic tape extends, which is secured, e.g., by being clamped, approximately at the middle so that the magnetic tape is inserted into the two grooves .25 on both sides during the coiling operation, which is analogous to the vpreceding example in other respects.
  • the housing 28 1s formed with an annular groove 29, the bottom 29 is bevelled in conical shape.
  • a magnetic tape 3d having a surface which is inclined to the coil axis is helically coiled into this groove.
  • Soldering tags 31 are attached to the outside of the housing. i
  • helically coiled magnetic strips havmg at or inclined convolutions cannot be extended to a fiat condition but will be twisted in accordance with their number of convolutions. Provided that the dimensions of the strip are appropriately selected, this will not adversely affect the utility of the strip for the practical applications which are contemplated. For instance a lead about 2 meters long and, e.g., 8-10 mm. wide, will have only 5-6 convolutions in a coil 12 to l() centimeters in diameter.
  • a coiling strip of flexible material having at least portions thereof of magnetic material so polarized that corresponding areas of one face of said strip are of a single magnetic polarity opposite to that of the corresponding areas of the opposite face, whereby when said strip is coiled said first corresponding areas in one lconvolution are in registry with said second corresponding areas in an adjacent convolution so that coiling is facilitated and uncoiling is resisted.
  • a coiling strip as set forth in claim 1 which comprises a ilat, flexible carrier layer which is provided on each face with a magnetic layer which is polarized in a direction normal to its surface, the outside surfaces of the entire strip having opposite polarities.
  • a coiling strip comprising a at, flexible central carrier layer, and a magnetic tape forming an active layer on leach side of said carrier layer having alternating polarities in successive longitudinal zones, said magnetic tapes providing zones of opposite polarity at the side edges of the strip, whereby when said strip is coiled zones of opposite polarity in adjacent convolutions are in registry to facilitate coiling and resist uncoiling.
  • a coiling strip as set forth in claim 1 which comprises a magnetic tape forming an active layer and two insulated electric leads attached to opposite longitudinal edges of said tape.
  • a coiling strip assembly comprising a shaft, a reel rotatable ond said shaft, a strip of material having flexible characteristics permitting coiling, said strip having atleast portions thereof of magnetic material so polarized that one face of said strip is of a single magnetic polarity opposite to the opposite face in corresponding areas of said strip, whereby when said strip is coiled areas of opposite polarity in adjacent convolutions are in registry to facilitate coiling and resist uncoiling.
  • a coiling strip assembly comprising a housing having a cylindrical outer wall open at one end, an end Wall closing the opposite end, a cylindrical winding reell formed Within said housing on said end wall and accessible from the opened end, and a at coiling strip of a dimension to be Wound with a tlat surface against said end wa-ll of said housing and around said cylindrical reel with the side edges adjacent said reel, said strip having at least portions thereof of magnetic material so polarized that one face of said strip is of a single magnetic polarity opposite to the opposite face in corresponding areas, whereby when said strip is coiled corresponding areas of opposite polarity in adjacent convolutions are in registry to facilitate coilingand resistuncoiling.
  • a coiling sheet comprising a at Web member having a plurality of longitudinally extending portions with magnetic material on each face polarized so that one face of said Web in the area of said magnetic portion is of a single magnetic polarity opposite to the polarity of the opposite face in corresponding areas along the length of said web, whereby when said strip is coiled corresponding areas of opposite polarity are in registry to facilitate coiling and resist uncoiling.

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US187831A 1961-04-29 1962-04-16 Coiling strip and assembly Expired - Lifetime US3254859A (en)

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AT339761A AT230963B (de) 1961-04-29 1961-04-29 Band mit Einrolltendenz

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3634797A (en) * 1969-06-12 1972-01-11 Dori Burkholter Data support device
US4726588A (en) * 1986-08-18 1988-02-23 Balls-N-Bars, Inc. Magnetic detent device and puzzle game device
US5006806A (en) * 1989-03-15 1991-04-09 Schonstedt Instrument Company Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as burried fiber optic cables
US5017185A (en) * 1985-03-29 1991-05-21 Rheinmagnet, Horst Baermann, Gmbh Permanent magnetic arrangement for therapeutic purposes
US5017873A (en) * 1989-03-15 1991-05-21 Schonstedt Instrument Company Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables
US5122750A (en) * 1989-03-15 1992-06-16 Schonstedt Instrument Company Methods employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables
US5173139A (en) * 1989-03-15 1992-12-22 Schonstedt Instrument Company Method for providing magnetic markers on elongated hidden objects
US5206065A (en) * 1989-03-15 1993-04-27 Schonstedt Instrument Company Methods, apparatus and devices relating to magnetic markers for elongated hidden objects
US5307582A (en) * 1992-12-31 1994-05-03 Quintel James A Adjustable band
USRE34701E (en) * 1989-12-18 1994-08-23 Gas Research Institute Magnetically detectable plastic pipe
US5764060A (en) * 1996-03-11 1998-06-09 Minnesota Mining And Manufacturing Company Guidance system for a moving person
US6301754B1 (en) * 1998-05-22 2001-10-16 Sama S.P.A. Magnetic closure device for clothing items, leather goods and the like
US20070214539A1 (en) * 2006-03-18 2007-09-20 Sokoloff Seth D Trouser Guard Coil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2342954A (en) * 1941-07-21 1944-02-29 Mercer Paul Spool holder
US2684815A (en) * 1951-02-27 1954-07-27 Holz Charles Magnetic film holder for film reels
US2958019A (en) * 1956-09-17 1960-10-25 Indiana General Corp Magnetic pad assembly
US3051988A (en) * 1957-02-09 1962-09-04 Baermann Max Material with permanent magnetic properties
US3124725A (en) * 1964-03-10 Flexible plastic permanent magnets

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124725A (en) * 1964-03-10 Flexible plastic permanent magnets
US2342954A (en) * 1941-07-21 1944-02-29 Mercer Paul Spool holder
US2684815A (en) * 1951-02-27 1954-07-27 Holz Charles Magnetic film holder for film reels
US2958019A (en) * 1956-09-17 1960-10-25 Indiana General Corp Magnetic pad assembly
US3051988A (en) * 1957-02-09 1962-09-04 Baermann Max Material with permanent magnetic properties

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3634797A (en) * 1969-06-12 1972-01-11 Dori Burkholter Data support device
US5017185A (en) * 1985-03-29 1991-05-21 Rheinmagnet, Horst Baermann, Gmbh Permanent magnetic arrangement for therapeutic purposes
US4726588A (en) * 1986-08-18 1988-02-23 Balls-N-Bars, Inc. Magnetic detent device and puzzle game device
US5173139A (en) * 1989-03-15 1992-12-22 Schonstedt Instrument Company Method for providing magnetic markers on elongated hidden objects
US5017873A (en) * 1989-03-15 1991-05-21 Schonstedt Instrument Company Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables
US5122750A (en) * 1989-03-15 1992-06-16 Schonstedt Instrument Company Methods employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables
US5006806A (en) * 1989-03-15 1991-04-09 Schonstedt Instrument Company Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as burried fiber optic cables
US5206065A (en) * 1989-03-15 1993-04-27 Schonstedt Instrument Company Methods, apparatus and devices relating to magnetic markers for elongated hidden objects
USRE34701E (en) * 1989-12-18 1994-08-23 Gas Research Institute Magnetically detectable plastic pipe
US5307582A (en) * 1992-12-31 1994-05-03 Quintel James A Adjustable band
US5764060A (en) * 1996-03-11 1998-06-09 Minnesota Mining And Manufacturing Company Guidance system for a moving person
US5917326A (en) * 1996-03-11 1999-06-29 Minnesota Mining And Manufacturing Company Guidance system for a moving person
US6301754B1 (en) * 1998-05-22 2001-10-16 Sama S.P.A. Magnetic closure device for clothing items, leather goods and the like
US20070214539A1 (en) * 2006-03-18 2007-09-20 Sokoloff Seth D Trouser Guard Coil
US7467424B2 (en) * 2006-03-18 2008-12-23 Seth David Sokoloff Trouser guard coil

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AT230963B (de) 1964-01-10

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