FR628504A - Improvements to electric incandescent lamps having a very concentrated filament - Google Patents

Improvements to electric incandescent lamps having a very concentrated filament

Info

Publication number
FR628504A
FR628504A FR628504DA FR628504A FR 628504 A FR628504 A FR 628504A FR 628504D A FR628504D A FR 628504DA FR 628504 A FR628504 A FR 628504A
Authority
FR
France
Prior art keywords
incandescent lamps
electric incandescent
concentrated filament
filament
concentrated
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
Application number
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR628504A publication Critical patent/FR628504A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F17/00—Lubrication specially adapted for axle-boxes of rail vehicles
    • B61F17/02—Lubrication specially adapted for axle-boxes of rail vehicles with oil
    • B61F17/14—Rotating lubricating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F17/00—Lubrication specially adapted for axle-boxes of rail vehicles
    • B61F17/02—Lubrication specially adapted for axle-boxes of rail vehicles with oil
    • B61F17/24—Lubrication specially adapted for axle-boxes of rail vehicles with oil by built-in lubricating pumps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/16—Electric connection thereto
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/28—Envelopes; Vessels
    • H01K1/30—Envelopes; Vessels incorporating lenses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/40—Leading-in conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Mechanical Engineering (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Resistance Heating (AREA)
  • Discharge Lamp (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
FR628504D 1927-02-11 1927-02-05 Improvements to electric incandescent lamps having a very concentrated filament Expired FR628504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL35972A NL21668C (en) 1927-02-11 1927-02-11

Publications (1)

Publication Number Publication Date
FR628504A true FR628504A (en) 1927-10-25

Family

ID=19782477

Family Applications (2)

Application Number Title Priority Date Filing Date
FR628504D Expired FR628504A (en) 1927-02-11 1927-02-05 Improvements to electric incandescent lamps having a very concentrated filament
FR639621D Expired FR639621A (en) 1927-02-11 1927-08-17 Improvements to incandescent electric lamps comprising a compact filament

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR639621D Expired FR639621A (en) 1927-02-11 1927-08-17 Improvements to incandescent electric lamps comprising a compact filament

Country Status (5)

Country Link
BE (1) BE346267A (en)
DE (2) DE512418C (en)
FR (2) FR628504A (en)
GB (1) GB285069A (en)
NL (1) NL21668C (en)

Also Published As

Publication number Publication date
GB285069A (en) 1928-10-18
FR639621A (en) 1928-06-26
BE346267A (en)
DE496333C (en) 1930-04-17
DE512418C (en) 1930-11-11
NL21668C (en) 1930-05-15

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