US2086152A - Flexible conduit for electric conductors - Google Patents
Flexible conduit for electric conductors Download PDFInfo
- Publication number
- US2086152A US2086152A US65889A US6588936A US2086152A US 2086152 A US2086152 A US 2086152A US 65889 A US65889 A US 65889A US 6588936 A US6588936 A US 6588936A US 2086152 A US2086152 A US 2086152A
- Authority
- US
- United States
- Prior art keywords
- strip
- scores
- flexible conduit
- electric conductors
- notches
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/226—Helicoidally wound metal wires or tapes
Definitions
- the principal object of my invention is to pro- Vide spaced weakened sections whereby the cable may be easily broken by hand at any section Without the necessity of the workman having to first bend the cable and then sever the same by sawing.
- Figure 1 is a plan view of a strip showing the first step in the method employed in forming my flexible conduit.
- Figure 2 is a similar view showing the inner face of the strip provided with the spaced weakened sections and registering edge notches and constituting the second step of my improved method.
- Figure 3 is a similar view showing the outer face of the strip.
- Figure 4 is a cross section taken on the line 4-4 in Figure 2.
- Figure 5 is a view showing a flexible conduit constructed in accordance with my invention and showing the last step in my improved method.
- I first form a sheet metal strip A of indeterminate length, as shown in Figure 1.
- the strip A is then formed with a plurality of spaced weakened sections 5 throughout the length of the strip, as shown in Figure 2.
- These weakened portions are preferably formed by scores which extend transversely across the inner face of the strip at spaced intervals. These scores are preferably spaced equidistantly, say about 3 or 4 inches. These scores are preferably disposed at a 45 angle to the longitudinal axis of the strip to facilitate the breaking of the conduit along any one of these sections.
- notches 6 also serve to reduce the cross-sectional area along the scores 5 to thereby further weaken the cable and permit the workmen to more easily break the cable at any one of these sections.
- the strip thus formed is spirally wound around one or more electric conductors 3, as shown in Figure 5.
- the notches l are invisible. However, the notches 6 remain visible and may consequently be observed by-the workman.
- These weakened portions 5 are spaced apart equidistantly and the distances between the weakened sections are such that in the spiral winding around the conductors 8 the notches 6 are staggered relative to the longitudinal axis of said conductors.
- a flexible conduit for electric conductors comprising a metallic strip wound spirally upon itself so that one edge of the strip is exposed in the form of a spiral and the other ,hidden; said strip having a plurality of spaced transverse hand-break-facilitating scores extending entirely across the inwardly wound face of the strip, the exposed edge of the strip being provided with notches coinciding with the scores for indicating their locations and facilitating breaking therethrough.
- a flexible conduit for electric conductors comprising a metallic strip wound spirally upon itself so that one edge of the strip is exposed in inciding with the scores to facilitate hand-breaking of the conduit, the notches in the exposed edge serving to indicate the locations of the transverse scores, and said scores being staggered relative to the longitudinal axis of the conduit.
Landscapes
- Insulated Conductors (AREA)
Description
July 6, 1937. c. E. BEDELL FLEXIBLE CONDUIT FOR ELECTRIC CONDUCTORS Filed Feb. 26, 1936 Patented July 6, 1937 FLEXIBLE CONDUIT FOR ELEcTRIo CONDUCTORS Charles E. Bedell, Port Richmond, Staten Island,
N. Y., assignor of one-half to Harry J. Hornung, Jersey City7 N. J.
Application February 26, 1936, Serial No. 65,889
2 Claims. (Cl. 24739) UNITED STATES PATENT OFFICE My invention relates to new and useful improvements in armored cables generally, although more particularly to spirally wound flexible conduits for electric conductors. -These cables are of indeterminate length and in practice it is necessary to cut the cable at the end of an installation. This necessitates the bending of the cable by the workman and the sawing of the cable at the point of bend.
The principal object of my invention is to pro- Vide spaced weakened sections whereby the cable may be easily broken by hand at any section Without the necessity of the workman having to first bend the cable and then sever the same by sawing.
" several views illustrated in the accompanying drawing. Y
In the drawing:
Figure 1 'is a plan view of a strip showing the first step in the method employed in forming my flexible conduit.
Figure 2 is a similar view showing the inner face of the strip provided with the spaced weakened sections and registering edge notches and constituting the second step of my improved method.
Figure 3 is a similar view showing the outer face of the strip.
Figure 4 is a cross section taken on the line 4-4 in Figure 2.
Figure 5 is a view showing a flexible conduit constructed in accordance with my invention and showing the last step in my improved method.
Like reference numerals designate corresponding parts throughout the several figures of the drawing.
In carrying out my invention, I first form a sheet metal strip A of indeterminate length, as shown in Figure 1. The strip A is then formed with a plurality of spaced weakened sections 5 throughout the length of the strip, as shown in Figure 2. These weakened portions are preferably formed by scores which extend transversely across the inner face of the strip at spaced intervals. These scores are preferably spaced equidistantly, say about 3 or 4 inches. These scores are preferably disposed at a 45 angle to the longitudinal axis of the strip to facilitate the breaking of the conduit along any one of these sections.
Inasmuch as these scores are on the inner face of the strip A, they will be invisible to the workman when the conduit is formed. I have provided a means whereby notches 6 are placed in accordance with these scores for external visible location by the workman. To this end, the notches 6 are formed along one edge of the strip ,A and are in register with the scores. The
These weakened portions 5 are spaced apart equidistantly and the distances between the weakened sections are such that in the spiral winding around the conductors 8 the notches 6 are staggered relative to the longitudinal axis of said conductors.
It is of course to be understood that the details of structure and arrangement of parts may be variously changed and modified without departing from the spirit and scope of my invention.
I claim:
1. A flexible conduit for electric conductors comprising a metallic strip wound spirally upon itself so that one edge of the strip is exposed in the form of a spiral and the other ,hidden; said strip having a plurality of spaced transverse hand-break-facilitating scores extending entirely across the inwardly wound face of the strip, the exposed edge of the strip being provided with notches coinciding with the scores for indicating their locations and facilitating breaking therethrough.
2. A flexible conduit for electric conductors comprising a metallic strip wound spirally upon itself so that one edge of the strip is exposed in inciding with the scores to facilitate hand-breaking of the conduit, the notches in the exposed edge serving to indicate the locations of the transverse scores, and said scores being staggered relative to the longitudinal axis of the conduit.
CHARLES E. BEDELL.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65889A US2086152A (en) | 1936-02-26 | 1936-02-26 | Flexible conduit for electric conductors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65889A US2086152A (en) | 1936-02-26 | 1936-02-26 | Flexible conduit for electric conductors |
Publications (1)
Publication Number | Publication Date |
---|---|
US2086152A true US2086152A (en) | 1937-07-06 |
Family
ID=22065821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US65889A Expired - Lifetime US2086152A (en) | 1936-02-26 | 1936-02-26 | Flexible conduit for electric conductors |
Country Status (1)
Country | Link |
---|---|
US (1) | US2086152A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2677957A (en) * | 1952-06-12 | 1954-05-11 | Raymond Concrete Pile Co | Prestressed concrete structure |
US2981786A (en) * | 1957-12-05 | 1961-04-25 | Sylvania Electric Prod | Electrical shield |
US3203653A (en) * | 1963-02-18 | 1965-08-31 | Glenn R Hall | Insulators for fixtures |
US5350885A (en) * | 1992-04-08 | 1994-09-27 | Monogram Industries, Inc. | Armored cable |
US6825418B1 (en) | 2000-05-16 | 2004-11-30 | Wpfy, Inc. | Indicia-coded electrical cable |
US6906264B1 (en) | 2004-06-17 | 2005-06-14 | Southwire Company | Color-coded armored cable |
WO2006060671A1 (en) * | 2004-12-03 | 2006-06-08 | Wpfy, Inc. | Flexible conduit and cable |
US20090060418A1 (en) * | 2007-08-28 | 2009-03-05 | Embarq Holdings Company, Llc | Bare fiber adapter |
US7591696B1 (en) * | 2008-05-19 | 2009-09-22 | Embarq Holdings Company, Llc | Ground bonding strap |
US20100050724A1 (en) * | 2006-07-27 | 2010-03-04 | Allan Stikeleather | Metallic Strip and Methods and Structures Incorporating the Same |
US7954530B1 (en) | 2009-01-30 | 2011-06-07 | Encore Wire Corporation | Method and apparatus for applying labels to cable or conduit |
US8826960B1 (en) | 2009-06-15 | 2014-09-09 | Encore Wire Corporation | System and apparatus for applying labels to cable or conduit |
US20150307314A1 (en) * | 2014-04-29 | 2015-10-29 | Thomas Matteo | Guide for coiling lengths of non-rigid material |
US9409668B1 (en) | 2007-06-04 | 2016-08-09 | Encore Wire Corporation | Method and apparatus for applying labels to cable |
US11319104B1 (en) | 2009-01-30 | 2022-05-03 | Encore Wire Corporation | System and apparatus for applying labels to cable or conduit |
-
1936
- 1936-02-26 US US65889A patent/US2086152A/en not_active Expired - Lifetime
Cited By (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2677957A (en) * | 1952-06-12 | 1954-05-11 | Raymond Concrete Pile Co | Prestressed concrete structure |
US2981786A (en) * | 1957-12-05 | 1961-04-25 | Sylvania Electric Prod | Electrical shield |
US3203653A (en) * | 1963-02-18 | 1965-08-31 | Glenn R Hall | Insulators for fixtures |
US5350885A (en) * | 1992-04-08 | 1994-09-27 | Monogram Industries, Inc. | Armored cable |
US5468914A (en) * | 1992-04-08 | 1995-11-21 | Monogram Industries Inc. | Armored cable |
US5557071A (en) * | 1992-04-08 | 1996-09-17 | Wpfy, Inc. | Armored cable |
US5708235A (en) * | 1992-04-08 | 1998-01-13 | Wpfy, Inc. | Armored cable |
USRE38345E1 (en) * | 1992-04-08 | 2003-12-16 | Wpfy, Inc. | Armored cable |
US6825418B1 (en) | 2000-05-16 | 2004-11-30 | Wpfy, Inc. | Indicia-coded electrical cable |
US20050016754A1 (en) * | 2000-05-16 | 2005-01-27 | Wpfy, Inc., A Delaware Corporation | Indicia-marked electrical cable |
US7465878B2 (en) | 2000-05-16 | 2008-12-16 | Wpfy, Inc. | Indicia-marked electrical cable |
US8278554B2 (en) | 2000-05-16 | 2012-10-02 | Wpfy, Inc. | Indicia-coded electrical cable |
US20090084575A1 (en) * | 2000-05-16 | 2009-04-02 | Dollins James C | Indicia-Marked Electrical Cable |
US6906264B1 (en) | 2004-06-17 | 2005-06-14 | Southwire Company | Color-coded armored cable |
WO2006060671A1 (en) * | 2004-12-03 | 2006-06-08 | Wpfy, Inc. | Flexible conduit and cable |
US20060131044A1 (en) * | 2004-12-03 | 2006-06-22 | Vertente Michael J | Flexible conduit and cable |
US7420120B2 (en) | 2004-12-03 | 2008-09-02 | Wpfy, Inc. | Flexible conduit and cable |
US8387426B2 (en) | 2006-07-27 | 2013-03-05 | Allan Stikeleather | Metallic strip and methods and structures incorporating the same |
US7726345B2 (en) | 2006-07-27 | 2010-06-01 | Allan Stikeleather | Metallic strip and methods and structures incorporating the same |
US20100050724A1 (en) * | 2006-07-27 | 2010-03-04 | Allan Stikeleather | Metallic Strip and Methods and Structures Incorporating the Same |
US11247404B1 (en) | 2007-06-04 | 2022-02-15 | Encore Wire Corporation | Method and apparatus for applying labels to cable |
US11498715B1 (en) | 2007-06-04 | 2022-11-15 | Encore Wire Corporation | Method and apparatus for applying labels to cable |
US11827409B1 (en) | 2007-06-04 | 2023-11-28 | Encore Wire Corporation | Method and apparatus for applying labels to cable |
US10272616B1 (en) | 2007-06-04 | 2019-04-30 | Encore Wire Corporation | Method and apparatus for applying labels to cable |
US9452856B1 (en) | 2007-06-04 | 2016-09-27 | Encore Wire Corporation | Method and apparatus for applying labels to cable |
US10759558B1 (en) | 2007-06-04 | 2020-09-01 | Encore Wire Corporation | Method and apparatus for applying labels to cable |
US9409668B1 (en) | 2007-06-04 | 2016-08-09 | Encore Wire Corporation | Method and apparatus for applying labels to cable |
US10046879B1 (en) | 2007-06-04 | 2018-08-14 | Encore Wire Corporation | Method and apparatus for applying labels to cable |
US11667085B1 (en) | 2007-06-04 | 2023-06-06 | Encore Wire Corporation | Method and apparatus for applying labels to cable |
US20090060418A1 (en) * | 2007-08-28 | 2009-03-05 | Embarq Holdings Company, Llc | Bare fiber adapter |
US7787739B2 (en) | 2007-08-28 | 2010-08-31 | Embarq Holdings Company, Llc | Bare fiber adapter |
US8770007B2 (en) | 2008-05-19 | 2014-07-08 | Centurylink Intellectual Property Llc | Stamp for ground bonding strap |
US9352374B2 (en) | 2008-05-19 | 2016-05-31 | Centurylink Intellectual Property Llc | Method for assembling stamp for ground bonding strap |
US8453486B2 (en) | 2008-05-19 | 2013-06-04 | Centurylink Intellectual Property Llc | System and method for creating a ground bonding strap |
US20090282888A1 (en) * | 2008-05-19 | 2009-11-19 | Embarq Holdings Company, Llc. | System and method for creating a ground bonding strap |
US7591696B1 (en) * | 2008-05-19 | 2009-09-22 | Embarq Holdings Company, Llc | Ground bonding strap |
US8454785B1 (en) | 2009-01-30 | 2013-06-04 | Encore Wire Corporation | Method for applying labels to cable or conduit |
US10035618B1 (en) | 2009-01-30 | 2018-07-31 | Encore Wire Corporation | System and apparatus for applying labels to cable or conduit |
US9950826B1 (en) | 2009-01-30 | 2018-04-24 | Encore Wire Corporation | Method for applying labels to cable or conduit |
US10654607B1 (en) | 2009-01-30 | 2020-05-19 | Encore Wire Corporation | System and apparatus for applying labels to cable or conduit |
US9446877B1 (en) | 2009-01-30 | 2016-09-20 | Encore Wire Corporation | System and apparatus for applying labels to cable or conduit |
US10906685B1 (en) | 2009-01-30 | 2021-02-02 | Encore Wire Corporation | Method for applying labels to cable or conduit |
US9321548B1 (en) | 2009-01-30 | 2016-04-26 | Encore Wire Corporation | Method for applying labels to cable or conduit |
US11319104B1 (en) | 2009-01-30 | 2022-05-03 | Encore Wire Corporation | System and apparatus for applying labels to cable or conduit |
US11673702B1 (en) | 2009-01-30 | 2023-06-13 | Encore Wire Corporation | Method for applying labels to cable or conduit |
US7954530B1 (en) | 2009-01-30 | 2011-06-07 | Encore Wire Corporation | Method and apparatus for applying labels to cable or conduit |
US11851233B1 (en) | 2009-01-30 | 2023-12-26 | Encore Wire Corporation | System and apparatus for applying labels to cable or conduit |
US8826960B1 (en) | 2009-06-15 | 2014-09-09 | Encore Wire Corporation | System and apparatus for applying labels to cable or conduit |
US20150307314A1 (en) * | 2014-04-29 | 2015-10-29 | Thomas Matteo | Guide for coiling lengths of non-rigid material |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2086152A (en) | Flexible conduit for electric conductors | |
US1668953A (en) | Molding for electric cables | |
US2043044A (en) | Electric cable | |
IT1091285B (en) | PROCEDURE AND DEVICE FOR THE FORMING OF A METAL SHEATH ON AN ELECTRIC CABLE WITH PREFORMED OVERLAPPING BRAND | |
US1995407A (en) | Armored cable | |
US1813039A (en) | Protecting sheath for electric wires | |
US2027619A (en) | Conduit for electric wiring | |
US3404217A (en) | Multiconductor cable and method of forming the same | |
US2254280A (en) | Electrical distribution system | |
US2222932A (en) | Electric cable | |
US1140425A (en) | Flexible tubing. | |
US2170299A (en) | Continuous outlet construction | |
US2189207A (en) | Conduit | |
US2003990A (en) | Electric cable | |
US1626776A (en) | Electrical conductor with reenforcing core | |
GB410915A (en) | Improvements in or relating to cables or the reinforcing strands of conductor cables | |
US4317955A (en) | Barbed wire | |
US2140270A (en) | Electric cable | |
US1514292A (en) | Homer g | |
GB515703A (en) | Improvements in or relating to protective casings more particularly for electric cables | |
KR930001841Y1 (en) | Calbe for electric and/or photo elements | |
US2090747A (en) | Armored electrical cable | |
US2245422A (en) | Armored electric cable | |
US1793697A (en) | Cable shield | |
US1769947A (en) | Connecter for electrical conduits |