US2144872A - Insulator - Google Patents
Insulator Download PDFInfo
- Publication number
- US2144872A US2144872A US92995A US9299536A US2144872A US 2144872 A US2144872 A US 2144872A US 92995 A US92995 A US 92995A US 9299536 A US9299536 A US 9299536A US 2144872 A US2144872 A US 2144872A
- Authority
- US
- United States
- Prior art keywords
- wiring
- switches
- insulator
- spacer
- parallel
- 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
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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
- H01B7/08—Flat or ribbon cables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/34—Combined diverse multipart fasteners
- Y10T24/3427—Clasp
- Y10T24/3439—Plural clasps
- Y10T24/344—Resilient type clasp
- Y10T24/3444—Circular work engageable
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49863—Assembling or joining with prestressing of part
- Y10T29/4987—Elastic joining of parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49863—Assembling or joining with prestressing of part
- Y10T29/49876—Assembling or joining with prestressing of part by snap fit
Definitions
- FIG. 2 INSULATOR Filed July 28, 1936 FIG. 2
- This invention relates to .telephone equipment and has for its object to simplify the erection of such equipment.
- Cross-bar switches for example such switches 5 as are shown in the Patent 2,021,329 granted to J. N. Reynolds, November 19, 1935, are made up of comparatively small units and under certain conditions are mounted in rows with the sets of terminals occupying the same horizontal levels across the row of switches. These terminals are multipled together within the switch by means of bare wires and where the switches are also to be multipled together the bare wires are strapped across the entire bank of switches. Between switches there is a field of bare wires which although tightly drawn are exposed to a certain amount of mechanical and electrical injury.
- the only method of protecting the bare wire multiples between switches was to apply individual tubes of insulation to each wire, which required considerable manual effort and prevented the use of efficient methods of wiring the switch banks.
- an insulating means is provided which may be readily applied to the multiple wiring after it is in place and which provides both mechanical and electrical protection for the wiring.
- the insulating spacer, forming the subject of the invention may be constructed of any desired semi-rigid insulating material in the form of a sheet of a width approximating the length of the bare wire multiple to be insulated. This material is then corrugated to form a series of 1936, Serial No. 92,995
- connections 2 being preferably fiat. If it is desired, the flat portions 2 could be of such width as to space the tubes at any desired distance.
- the insulating spacer When the insulating spacer is so formed, due to its semi-rigid nature, it may be bent as a whole as shown in Fig. 2, opening the slots 3 between the fiat portions 2 sufficiently to permit the spacer to be slipped over the parallel wires 4 in the multiple wiring. As soon as the pressure is released the slots reclose and the spacer completely encloses the wires 4 holding them at the desired distance, insulating them from electrical contacts and also protecting them from mechanical injury.
- parallel multiple wiring for connecting switching devices, and an insulator and spacer therefor, comprising a sheet of semirigid insulating material corrugated to form a series of parallel adjacent tubes enclosing and supported by said wiring.
- An insulator and spacer for parallel multiple electric wiring comprising a sheet of semi-rigid insulating material corrugated to form a series of parallel adjacent tubes, said tubes being joined by flattened portions of said material and having openings between said flattened portions, said openings being normally closed, and said structure being sufllciently resilient so that when bent as a whole said openings spread sufliciently to pass over said multiple wiring and when released said structure completely encloses said wiring and is supported thereby.
Description
Jan. 24, 1939. v. I. 'cR usER 2,144,872
INSULATOR Filed July 28, 1936 FIG. 2
INVEN 70/? I4 CRUSER ATTORNEY Patented Jan. 24, 1939 UNITED STATES PATENT OFFICE INSULATOR Application July 28,
2 Claims.
This invention relates to .telephone equipment and has for its object to simplify the erection of such equipment.
Cross-bar switches, for example such switches 5 as are shown in the Patent 2,021,329 granted to J. N. Reynolds, November 19, 1935, are made up of comparatively small units and under certain conditions are mounted in rows with the sets of terminals occupying the same horizontal levels across the row of switches. These terminals are multipled together within the switch by means of bare wires and where the switches are also to be multipled together the bare wires are strapped across the entire bank of switches. Between switches there is a field of bare wires which although tightly drawn are exposed to a certain amount of mechanical and electrical injury. Heretofore the only method of protecting the bare wire multiples between switches was to apply individual tubes of insulation to each wire, which required considerable manual effort and prevented the use of efficient methods of wiring the switch banks.
In accordance with the present invention, an insulating means is provided which may be readily applied to the multiple wiring after it is in place and which provides both mechanical and electrical protection for the wiring.
The invention will be more clearly understood from a consideration of the following description in connection with the drawing in which Fig. 1 shows the insulating structure in place, while Fig. 2 indicates how it may be applied to the multiple wiring.
35 The insulating spacer, forming the subject of the invention may be constructed of any desired semi-rigid insulating material in the form of a sheet of a width approximating the length of the bare wire multiple to be insulated. This material is then corrugated to form a series of 1936, Serial No. 92,995
parallel tubes I connected together at one side by the material, these connections 2 being preferably fiat. If it is desired, the flat portions 2 could be of such width as to space the tubes at any desired distance.
When the insulating spacer is so formed, due to its semi-rigid nature, it may be bent as a whole as shown in Fig. 2, opening the slots 3 between the fiat portions 2 sufficiently to permit the spacer to be slipped over the parallel wires 4 in the multiple wiring. As soon as the pressure is released the slots reclose and the spacer completely encloses the wires 4 holding them at the desired distance, insulating them from electrical contacts and also protecting them from mechanical injury.
It is, of course, apparent that such a spacer is not restricted to use with cross-bar type switches, but may be used in any case where parallel wiring requires protection.
What is claimed is:
1. In combination, parallel multiple wiring for connecting switching devices, and an insulator and spacer therefor, comprising a sheet of semirigid insulating material corrugated to form a series of parallel adjacent tubes enclosing and supported by said wiring.
2. An insulator and spacer for parallel multiple electric wiring, comprising a sheet of semi-rigid insulating material corrugated to form a series of parallel adjacent tubes, said tubes being joined by flattened portions of said material and having openings between said flattened portions, said openings being normally closed, and said structure being sufllciently resilient so that when bent as a whole said openings spread sufliciently to pass over said multiple wiring and when released said structure completely encloses said wiring and is supported thereby.
VICTOR I. CRUSER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US92995A US2144872A (en) | 1936-07-28 | 1936-07-28 | Insulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US92995A US2144872A (en) | 1936-07-28 | 1936-07-28 | Insulator |
Publications (1)
Publication Number | Publication Date |
---|---|
US2144872A true US2144872A (en) | 1939-01-24 |
Family
ID=22236179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US92995A Expired - Lifetime US2144872A (en) | 1936-07-28 | 1936-07-28 | Insulator |
Country Status (1)
Country | Link |
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US (1) | US2144872A (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2541406A (en) * | 1945-11-14 | 1951-02-13 | Thomas & Betts Corp | Ground wire assembly |
US2595452A (en) * | 1947-03-22 | 1952-05-06 | Alex M Geist | Electrical preformed floor duct |
US2675434A (en) * | 1950-05-25 | 1954-04-13 | Bulldog Electric Products Co | Trolley duct |
US2839597A (en) * | 1955-07-11 | 1958-06-17 | William L Hendrix | Aerial cable clamp |
US2865979A (en) * | 1955-10-14 | 1958-12-23 | Teletype Corp | Extensible cable structure |
US3048649A (en) * | 1959-06-08 | 1962-08-07 | Schwitzer Corp | Cable motion damper |
US3273213A (en) * | 1964-04-13 | 1966-09-20 | Electrolux Corp | Replacement or repair strap for extension cord and harness assembly |
US3405986A (en) * | 1967-02-13 | 1968-10-15 | Westinghouse Electric Corp | Refrigerator construction |
DE2404825A1 (en) * | 1974-02-01 | 1975-08-07 | Kabel Metallwerke Ghh | Prodn. of strip cable short sections - is based on holding parallel wire lengths by insulating foils with hot pressing at spaced intervals |
US4034148A (en) * | 1975-01-30 | 1977-07-05 | Spectra-Strip Corporation | Twisted pair multi-conductor ribbon cable with intermittent straight sections |
US4171860A (en) * | 1977-03-17 | 1979-10-23 | Teradyne, Inc. | Testing circuit boards |
US5716231A (en) * | 1996-08-29 | 1998-02-10 | Snap-On Technologies, Inc. | Sensor breakout lead |
US20040037649A1 (en) * | 2000-12-18 | 2004-02-26 | Van Bijsterveld Cornelis Casparus | Method installing a duct, device for carrying out said method, and a tape-shape element for use with said method |
US20060237219A1 (en) * | 2005-04-25 | 2006-10-26 | Cable Components Group, Llc. | Concentric-eccentric high performance, multi-media communications cables and cable support-separators utilizing roll-up designs |
US20060237217A1 (en) * | 2005-04-25 | 2006-10-26 | Cable Components Group, Llc. | Variable diameter conduit tubes for high performance, multi-media communication cable |
US20060237218A1 (en) * | 2005-04-25 | 2006-10-26 | Cable Components Group, Llc. | High performance, multi-media cable support-separator facilitating insertion and removal of conductive media |
US20090065249A1 (en) * | 2007-09-07 | 2009-03-12 | Robert Martin Silvers | Marine Wire Organizer |
-
1936
- 1936-07-28 US US92995A patent/US2144872A/en not_active Expired - Lifetime
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2541406A (en) * | 1945-11-14 | 1951-02-13 | Thomas & Betts Corp | Ground wire assembly |
US2595452A (en) * | 1947-03-22 | 1952-05-06 | Alex M Geist | Electrical preformed floor duct |
US2675434A (en) * | 1950-05-25 | 1954-04-13 | Bulldog Electric Products Co | Trolley duct |
US2839597A (en) * | 1955-07-11 | 1958-06-17 | William L Hendrix | Aerial cable clamp |
US2865979A (en) * | 1955-10-14 | 1958-12-23 | Teletype Corp | Extensible cable structure |
US3048649A (en) * | 1959-06-08 | 1962-08-07 | Schwitzer Corp | Cable motion damper |
US3273213A (en) * | 1964-04-13 | 1966-09-20 | Electrolux Corp | Replacement or repair strap for extension cord and harness assembly |
US3405986A (en) * | 1967-02-13 | 1968-10-15 | Westinghouse Electric Corp | Refrigerator construction |
DE2404825A1 (en) * | 1974-02-01 | 1975-08-07 | Kabel Metallwerke Ghh | Prodn. of strip cable short sections - is based on holding parallel wire lengths by insulating foils with hot pressing at spaced intervals |
US4034148A (en) * | 1975-01-30 | 1977-07-05 | Spectra-Strip Corporation | Twisted pair multi-conductor ribbon cable with intermittent straight sections |
US4171860A (en) * | 1977-03-17 | 1979-10-23 | Teradyne, Inc. | Testing circuit boards |
US5716231A (en) * | 1996-08-29 | 1998-02-10 | Snap-On Technologies, Inc. | Sensor breakout lead |
US20040037649A1 (en) * | 2000-12-18 | 2004-02-26 | Van Bijsterveld Cornelis Casparus | Method installing a duct, device for carrying out said method, and a tape-shape element for use with said method |
US7018136B2 (en) * | 2000-12-18 | 2006-03-28 | Koninklijke Kpn N.V. | Method installing a duct, device for carrying out said method, and a tape-shape element for use with said method |
US20060237219A1 (en) * | 2005-04-25 | 2006-10-26 | Cable Components Group, Llc. | Concentric-eccentric high performance, multi-media communications cables and cable support-separators utilizing roll-up designs |
US20060237217A1 (en) * | 2005-04-25 | 2006-10-26 | Cable Components Group, Llc. | Variable diameter conduit tubes for high performance, multi-media communication cable |
US20060237218A1 (en) * | 2005-04-25 | 2006-10-26 | Cable Components Group, Llc. | High performance, multi-media cable support-separator facilitating insertion and removal of conductive media |
US7465879B2 (en) * | 2005-04-25 | 2008-12-16 | Cable Components Group | Concentric-eccentric high performance, multi-media communications cables and cable support-separators utilizing roll-up designs |
US7473849B2 (en) * | 2005-04-25 | 2009-01-06 | Cable Components Group | Variable diameter conduit tubes for high performance, multi-media communication cable |
US7473850B2 (en) * | 2005-04-25 | 2009-01-06 | Cable Components Group | High performance, multi-media cable support-separator facilitating insertion and removal of conductive media |
US20090065249A1 (en) * | 2007-09-07 | 2009-03-12 | Robert Martin Silvers | Marine Wire Organizer |
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