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US1695464A - Nonglare electric lamp for headlights - Google Patents

Nonglare electric lamp for headlights Download PDF

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Publication number
US1695464A
US1695464A US715406A US71540624A US1695464A US 1695464 A US1695464 A US 1695464A US 715406 A US715406 A US 715406A US 71540624 A US71540624 A US 71540624A US 1695464 A US1695464 A US 1695464A
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US
United States
Prior art keywords
nonglare
headlights
shield
filament
electric lamp
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
US715406A
Inventor
Robert P Mccurdy
Frederick W Hochstetter
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.)
HOCHSTETTER
Original Assignee
HOCHSTETTER
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 HOCHSTETTER filed Critical HOCHSTETTER
Priority to US715406A priority Critical patent/US1695464A/en
Application granted granted Critical
Publication of US1695464A publication Critical patent/US1695464A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/26—Screens; Filters

Definitions

  • the object of this invention is to provide an electric filament bulb lamp with an interior shield or light-filter which will prevent the projection of blinding rays into the eyes of a person positioned in front of the headlight in which the bulb is placed, and the special object of the invention is to so construct the nonglare shield that it shall be enclosed within the lamp-globe, where it will be out of the way and will be protected from breaking in handling, as more fully hereinafter set forth.
  • FIG. 1 is a front view of our improved lamp
  • Fig. 2 is a side elevation thereof
  • Figs. 3 and 4 are similar views showing a modified arrangement of the screen or shield.
  • the shield 5 is shown as being made of glass formed integral 0 with the usual filament-base 6.
  • the shield is molded on the base at the same time the filament is molded or cast therein.
  • the shield is supported on a laterally-extending offset 7, and it lies in a vertical position in front of 2 the filament.
  • the shield is tinted to render it ray-filtering.
  • the shield has sufficient dimensions to cover the filament when the'same is viewed from a point in front of the head.- light.
  • the shield must, of course, be suf- 1924. Serial No. 715,406..
  • This shield is shown as'being constructed of a very fine wire mesh, sometimes referred to as a mosaic screen.
  • This fine wire mesh produces approximately the same translucent effect of etched ,or tinted glass, and therefore serves ⁇ .0 filter out 'orblock off the blinding rays of ight.
  • An electric filament lamp for use in headlights having the usual central filament projecting from the filament-base, and a light-filterin non-glare shield composed of a piece of ray ltering material supported on a forwardly-projecting offset from the top of said filament-base in front of said filament, for the purpose set forth. 7

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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Description

Deb. 18, 1928. 1,695,464
R. P. MCCURDY ET AL NONGLARE ELECTRIC LAMP FOR HEADLIGHTS Filed May 23, 1924 Fig.2
W d/d' 951, A)? MW Patented Dec. 18, 1928.
UNITED STATES.
PATENT OFFICE.
ROBERT P. MCCURDY, O1 PITTSBURGH, PENNSYLVANIA, AND FREDERICK W. HOCH- j STETTER, F DAYTON, OHIO, ASSIGNOBS, BY MESNE ASSIGNMENTS, T0 SAID HOCHSTETTEB.
NONGLARE ELECTRIC LAMP FOR; HEADLIGHTS.
Application filed May 23,
The object of this invention is to provide an electric filament bulb lamp with an interior shield or light-filter which will prevent the projection of blinding rays into the eyes of a person positioned in front of the headlight in which the bulb is placed, and the special object of the invention is to so construct the nonglare shield that it shall be enclosed within the lamp-globe, where it will be out of the way and will be protected from breaking in handling, as more fully hereinafter set forth.
In the drawing- Fig. 1 is a front view of our improved lamp;
Fig. 2 is a side elevation thereof;
Figs. 3 and 4 are similar views showing a modified arrangement of the screen or shield.
Referring to Figs, 1 and 2, the shield 5 is shown as being made of glass formed integral 0 with the usual filament-base 6. The shield is molded on the base at the same time the filament is molded or cast therein. The shield is supported on a laterally-extending offset 7, and it lies in a vertical position in front of 2 the filament. The shield is tinted to render it ray-filtering. The shield has sufficient dimensions to cover the filament when the'same is viewed from a point in front of the head.- light. The shield must, of course, be suf- 1924. Serial No. 715,406..
'mented in a recess in the lateral offset 7. This shield is shown as'being constructed of a very fine wire mesh, sometimes referred to as a mosaic screen. This fine wire mesh produces approximately the same translucent effect of etched ,or tinted glass, and therefore serves {.0 filter out 'orblock off the blinding rays of ight.
What we claim as new is: I
An electric filament lamp for use in headlights having the usual central filament projecting from the filament-base, and a light-filterin non-glare shield composed of a piece of ray ltering material supported on a forwardly-projecting offset from the top of said filament-base in front of said filament, for the purpose set forth. 7
In testimony whereof we hereunto afiix our signatures this 22nd day of May, 1924.
ROBERT P. McCURDY. FREDERICK W. HOCHSTETTER.
US715406A 1924-05-23 1924-05-23 Nonglare electric lamp for headlights Expired - Lifetime US1695464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US715406A US1695464A (en) 1924-05-23 1924-05-23 Nonglare electric lamp for headlights

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US715406A US1695464A (en) 1924-05-23 1924-05-23 Nonglare electric lamp for headlights

Publications (1)

Publication Number Publication Date
US1695464A true US1695464A (en) 1928-12-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
US715406A Expired - Lifetime US1695464A (en) 1924-05-23 1924-05-23 Nonglare electric lamp for headlights

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060050523A1 (en) * 2004-09-03 2006-03-09 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Infrared headlight

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060050523A1 (en) * 2004-09-03 2006-03-09 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Infrared headlight
US7331690B2 (en) * 2004-09-03 2008-02-19 Patent-Treuhand-Gesellschaft Fur Electrische Gluhlampen Mbh Infrared headlight

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