US335786A - Electric arc lamp - Google Patents

Electric arc lamp Download PDF

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Publication number
US335786A
US335786A US1885160574A US335786A US 335786 A US335786 A US 335786A US 1885160574 A US1885160574 A US 1885160574A US 335786 A US335786 A US 335786A
Authority
US
United States
Prior art keywords
lever
armature
arc
carbon
core
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
Application number
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English (en)
Inventor
Nikola Tesla
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to CA000024348A priority Critical patent/CA24348A/fr
Application filed by Individual filed Critical Individual
Priority to US1885160574 priority patent/US335786A/en
Priority to US1885171416 priority patent/US335787A/en
Application granted granted Critical
Publication of US335786A publication Critical patent/US335786A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B31/00—Electric arc lamps
    • H05B31/0081—Controlling of arc lamps
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/13—Linear codes
    • H03M13/15—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes
    • H03M13/151—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes using error location or error correction polynomials

Definitions

  • My invention relates more particularly to those are lamps in which the separation and feed of the carbon electrodes or their equiva- IO lents is accomplished by means of electromagnets or solenoids in connection with suitable clutch-mechanism; and it is designed to remedy certain faults common to the greater part of the lamps heretofore made.
  • the objects of my invention are to prevent the frequent vibrations of the movable electrode and flickering of the light arising therefrom, to prevent the falling into contact of the electrodes, to dispense with the dash-pot, 2o clock-work, or gearing and similar devices heretofore used, and to render the lamp extremely sensitive, and to feed the carbon almost imperceptibly, and thereby obtain a very steady and uniform light
  • the regulation of the arc is effected by forces acting in opposition on a free movable rod or lever directly connected with the electrode, all or some of the forces being dependent on the strength 0 of the current, any change in the electrical con dition of the circuit causes a vibration and a corresponding flicker in the light, This difficulty is most apparent when there are only a few lamps in circuit.
  • lamps have been constructed in which the lever or armature, after the establishing of the arc, is kept in a fixed position and cannot vibrate during the feed operation, the feed mechanism actingindependently; butin these lamps, when a clamp is employed, it frequently occurs that the carbons come into contact and the light is momentarily extinguished, and, frequently,parts of the circuit are injured.
  • dash-pot, clock-work, or equivalent retarding devices In both these classes of lamps it has been custom- 4 5 ary to use dash-pot, clock-work, or equivalent retarding devices; but these are generally unreliable and objectionable, and increase the cost of construction.
  • My invention is intended to effect the de- Serial No. 160,574. (No model.)
  • My invention consists, mainly, in the particular manner in which the armature is com bined with the magnets and acted upon by them and in the feed-controlling mechanism.
  • Figure 1 is an elevation of the mechanism made use of in the electric lamp.
  • Fig. 2 is a plan view of the same be low the line 09 x. 3 is an elevation of the balancing lever and spring, and
  • Fig. 4 is a detached plan view of the pole-pieces and armatures upon the friction-clamp, and
  • Fig. 5 is a section of the clamping-tube,
  • M is a helix of coarse wire in a circuit from the lower-carbon holder to the negative binding-serew
  • N is a helix of fine wire in a shunt between the positive bindingscrew and the negative binding-screw
  • the upper-carbon holder S is a parallel rod sliding through the plates S S of the frame of the lamp, and hence the electric current passes from the positive binding-post through the plate S carbonholder S, and upper carbon to the lower carbon, and thence by the holder anda metallic connection to the helix M.
  • the carbon-holders are of any desired character, and to insure electric connections the springs l are made use of to grasp the uppercarbon holding rod S, but to allow the rod to slide freely through the same.
  • These springs I may be adjusted in their pressure by the screw m, and the spring Z may be sustained upon any suitable support. I have shown them as connected with the upper end of the core of the magnet N.
  • atube, R which forms a clamp.
  • This tube is counterbored, as seen in the section Fig. 5, so that it bears upon the rod S atits upper end and near the middle, and at the lower end of this tubular clamp B there are armature-segmentsrof soft iron.
  • a frame or arm, n extending, preferably, from the core N supports the lever A by a fulcrum-pin, o.
  • This lever A has a hole, through which the upper end of the tubular clamp R passes freely,
  • a link, q to the lever t, which lever is pivoted at y to a ring upon one of the columns S
  • This lever thas an opening or bow surrounding the tubular clamp R, and there are pins or pivotal connections 10 between the lever t and this clamp R, and a spring, 1', serves to su port or suspend the Weight of the parts and alance the same, or nearly so.
  • This spring is preferably adj ustable.
  • a soft-iron armature block, a over the core M of the helix M, and there is preferably a limiting-screw, a, passing through this armature-block a, and at the other end of the leverAis a soft-iron armature-block, b, with the end tapering or Wedgeshaped, and the same comes close to and in line with the lateral projection e on the core N
  • the lower ends of the cores M N are made with lateral projecting pole-pieces M N respectively, and these pole-pieces are concave at their outer ends, and are at opposite sides of the armature-segments 1" at the lower end of the tubular clamp R.
  • the magnetism of the pole-piece 0 tends to hold the lever A level,or nearly so, the core N being energized by the current in the shunt which contains In this position the lever A is not moved by ordinary variation in the electric current because the armature b is strongly attracted by the magnetism of e, and these parts are close to each other, and the magnetism of 6 acts at right angles to the magnetism of long, the current through the helix M is lesssened, and the magnetism of the core N is increased by the greater current passing through the shunt, and this core N attracting the segmental armature 1' lessens the hold of the clamp R upon the rod S, allowing the latter to slide and lessen the length of the are, which instantly restores the magnetic equilibrium and causes the clamp R to hold the rod S.
  • the segmental armature pieces 1" are shown as nearly semicircular. They may be square or of any other desired shape, the ends of the pole-pieces M N being made to correspond in shape.

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  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
US1885160574 1885-03-30 1885-03-30 Electric arc lamp Expired - Lifetime US335786A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA000024348A CA24348A (fr) 1885-03-30 Lampe electrique a arc
US1885160574 US335786A (en) 1885-03-30 1885-03-30 Electric arc lamp
US1885171416 US335787A (en) 1885-03-30 1885-07-13 Electric-Arc Lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1885160574 US335786A (en) 1885-03-30 1885-03-30 Electric arc lamp

Publications (1)

Publication Number Publication Date
US335786A true US335786A (en) 1886-02-09

Family

ID=73744393

Family Applications (2)

Application Number Title Priority Date Filing Date
US1885160574 Expired - Lifetime US335786A (en) 1885-03-30 1885-03-30 Electric arc lamp
US1885171416 Expired - Lifetime US335787A (en) 1885-03-30 1885-07-13 Electric-Arc Lamp

Family Applications After (1)

Application Number Title Priority Date Filing Date
US1885171416 Expired - Lifetime US335787A (en) 1885-03-30 1885-07-13 Electric-Arc Lamp

Country Status (2)

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US (2) US335786A (fr)
CA (1) CA24348A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US335787A (en) * 1885-03-30 1886-02-09 Nikola Tesla Electric-Arc Lamp
DE102017000657A1 (de) 2016-01-26 2017-07-27 Alf Holger Tschersich Fusions-Vorrichtungen und Verfahren zur kalten Wasserstoff-Fusion

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA24348A (fr) * 1885-03-30 1886-06-18 Nikola Tesla Lampe electrique a arc

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US335787A (en) * 1885-03-30 1886-02-09 Nikola Tesla Electric-Arc Lamp
DE102017000657A1 (de) 2016-01-26 2017-07-27 Alf Holger Tschersich Fusions-Vorrichtungen und Verfahren zur kalten Wasserstoff-Fusion

Also Published As

Publication number Publication date
CA24348A (fr) 1886-06-18
US335787A (en) 1886-02-09

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