US395533A - Automatic safety cut-out for electric circuits - Google Patents
Automatic safety cut-out for electric circuits Download PDFInfo
- Publication number
- US395533A US395533A US395533DA US395533A US 395533 A US395533 A US 395533A US 395533D A US395533D A US 395533DA US 395533 A US395533 A US 395533A
- Authority
- US
- United States
- Prior art keywords
- circuit
- armature
- electric circuits
- automatic safety
- safety cut
- 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
- 239000004020 conductor Substances 0.000 description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000007665 sagging Methods 0.000 description 4
- 101700045773 CLIP1 Proteins 0.000 description 2
- 102100012873 MAGEH1 Human genes 0.000 description 2
- 101710027575 MAGEH1 Proteins 0.000 description 2
- 241000124008 Mammalia Species 0.000 description 2
- 230000001808 coupling Effects 0.000 description 2
- 230000001771 impaired Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003405 preventing Effects 0.000 description 2
Images
Classifications
-
- 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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/18—Devices affording mechanical protection in the event of breakage of a line or cable, e.g. net for catching broken lines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
- H02H7/226—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices for wires or cables, e.g. heating wires
Definitions
- armature a pivoted armature, c,forming contact at 1/ with the-line 13, but normally heldopen by a rctractile spring, 8. ll-roin the pivot a wire, B, connects it back to one pole of the generator.
- flhc armature c is controlled and the contact at (l maintained by an electro-niagnot, c,includcd in the auxiliary-remrn E.- It
- auniliary return-wire is also included a xa-ri-. able resistance, l, and also, if desirable, a fusible cut-out, (l.
- connection of the link f is made to a tigftlielas't in series;
- the yarying en-j branch contacts thus increasing 'the BEST AVAlLABLE COP button attached to the arninture r in rear of thecrmtactd.
- -'-lhe carbon'peucilhis passed. through a supporting-piece, i, in electrical communication with the line ii, and arranged torcst at its lower point upon the contact.
- the elfect is to carry a partial current through the carbon contacts after the metal contacts have separated, thereby preven ting a spark at the latter In the con- 8o tinned falling of the-armature the contact is finally broken at the carbon contacts.
- a break-c ircuit armature in circuit in or near the generator 4 held to conducting control by a magnet nor-, mally charged by the electric charge upon the conducting-circuit againstan independent m normally-active withdrawing force'acting automatically to hold the circuit closed while the conducting-line is otherwise intact and charged, and to open the circuit when the conducting-line is broken or impaired at any other no point, substantially as set forth.
- insulated links connecting the main conductor to the auxiliary wire in such manner that a I30 displacement oft-he main conductor will. sever the auxiliary wire, substantially as and l or the purpose set forth.
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Description
BEST AVAILABLE cor-*- G. woons. AUTOMATIC SAFETY GUT-OUT FOR, ELEGTRIGGIRGUITS.
No. 395,538 Pat ventgd Jan. 1, 1889.
' a mammal.
a pivoted armature, c,forming contact at 1/ with the-line 13, but normally heldopen by a rctractile spring, 8. ll-roin the pivot a wire, B, connects it back to one pole of the generator. flhc armature c is controlled and the contact at (l maintained by an electro-niagnot, c,includcd in the auxiliary-remrn E.- It
' 'will be obvious that any break in the-main conductor 13 will at once opcn the contact atd and the current will cease to flow. In this auniliary return-wire is also included a xa-ri-. able resistance, l, and also, if desirable, a fusible cut-out, (l. 'j'lhe-\'ariable-.resistancc device consists of an clectro-nlagnet ISJIfiVlllg-ltfi coils and armature in the conduct- 'ing=line, the arnntturc restin outwardlyagainst two or more termini of a branched conductor, each branch having a somewhat high resistance, but together offering a con-. ducting. medium equal to the capacity ofthe iconductingqua-in. As theinagnetis ener: ized, itwitlulraws its armature from the contot-pointssuccessively, never, however, leav- -2 5 ferg" iigstrength of thecurren't cutsout or jn, asthe'case maybe,' a greater or lessnumbe'r resistance of the conductor-jasthe strength ol gur ent increases,- and, fvice versa, increasing 3o th'e'conductiyityo'f the line as the strength ofv urrentjdiminishes] These being common levicestheirfunctions need not be described cepting to say that as employed.
r a he.
"s'connectionianexcess of currentin the w auxiliaryv return I!) will causea'break by fu- G, andfthus protect the coils of, the .atiablegesistanceinstrument F, while the j1attr'; -instrument-iinsures thelsa fety of the coiljofjhiagnetc, but in order to extend the 0 lienefitof the'circuit-brea-ker to a case where a mere displacement of the main conductor IS-occurs, as in sagging, Iprovide in the refa l theQsupportingpoets-sltort couplings or 5 suspending-linksfiattached to the main conductorinsuch ama-nner as not to interfere with the proper use of the latter, but in case i of dis 'llacement-or sagging of the latter to bring a'breaking-strain upon the conductor E at the point of connection through and by means of the suspending-link. The eonnec c tionof the link f is mechanical entirely, and to insure insulation an insulating-block, f, of any suitable. material, is inserted therein. 5 5 To further insure the breakage of the line E,
the connection of the link f is made to a tigftlielas't in series; Thus the yarying en-j branch contacts, thus increasing 'the BEST AVAlLABLE COP button attached to the arninture r in rear of thecrmtactd. -'-lhe carbon'peucilhis passed. through a supporting-piece, i, in electrical communication with the line ii, and arranged torcst at its lower point upon the contact.- button of the armature and follow downward with the movement of the armature until stopped by the enlargement or head 11 01: the 7 5 carbon pencil, which engages upon thesnpporting-piece i. The elfect is to carry a partial current through the carbon contacts after the metal contacts have separated, thereby preven ting a spark at the latter In the con- 8o tinned falling of the-armature the contact is finally broken at the carbon contacts.
In I i g. 4 lehave shown the arrangement or the circuit breaker in the single circuit. Starting from the generator A, the circuit is traced bywir'e I -to the armature c-th-rough contact (Z to and through the magnet e, thence oyerjthenrain circuit-wire Bto the lamps 'L or other apparatus in which the current is utilized, and thence back to battery. The constructionandarrangement of the cut-outapparatus beingsuchas already fully described, it will be obvious thata breakage of the line 2-at any'point'iwill cause. the arma- .ture c to drop and disconnect the generator. 9-5 I'claim as my invention and desire to secureby Letters Patent of the United Statcs' -1. In combination with an electric generator, its conducting-line circuit, and devices-' such. as lamps or motors.for utilizing the cur- I00 rent passing over such circuit, a break-c ircuit armature in circuit in or near the generator 4 held to conducting control by a magnet nor-, mally charged by the electric charge upon the conducting-circuit againstan independent m normally-active withdrawing force'acting automatically to hold the circuit closed while the conducting-line is otherwise intact and charged, and to open the circuit when the conducting-line is broken or impaired at any other no point, substantially as set forth.
2. In combination with a generator and outgoing conductorof an electric circuit, (as an electric light or power circuit.) a circuitbreaking armature in the-outgoing conductor, 1 r5 an auxiliary wire constituting a return branch of the circuit, and an eleetro-magnet in said return branch controlling the circuit-breakingarmatnre, substantiallr as and for the pn rpose set forth. v v 3. In combination with a general or and outgoing conductor of an electric circuit, (as an electric light or power circuit,) a circuitbreaking armature in the outgoing conductor, an auxiliary wire constituting a return branch 1 z 5 of the circuit and arranged parallel therewith, an eleetro-magnet in said return branch controlling the circuitebreaking armature, and
insulated links connecting the main conductor to the auxiliary wire in such manner that a I30 displacement oft-he main conductor will. sever the auxiliary wire, substantially as and l or the purpose set forth.
4. In an electric lightor power circuit, the
Publications (1)
Publication Number | Publication Date |
---|---|
US395533A true US395533A (en) | 1889-01-01 |
Family
ID=2464504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US395533D Expired - Lifetime US395533A (en) | Automatic safety cut-out for electric circuits |
Country Status (1)
Country | Link |
---|---|
US (1) | US395533A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2575053A (en) * | 1946-06-27 | 1951-11-13 | Ite Circuit Breaker Ltd | Power system control |
-
0
- US US395533D patent/US395533A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2575053A (en) * | 1946-06-27 | 1951-11-13 | Ite Circuit Breaker Ltd | Power system control |
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