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ES307292A1 - Procedure for the manufacture of an apparently rectangular parabolic mirror, particularly for the headlamps of automobile vehicles. (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for the manufacture of an apparently rectangular parabolic mirror, particularly for the headlamps of automobile vehicles. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES307292A1
ES307292A1 ES0307292A ES307292A ES307292A1 ES 307292 A1 ES307292 A1 ES 307292A1 ES 0307292 A ES0307292 A ES 0307292A ES 307292 A ES307292 A ES 307292A ES 307292 A1 ES307292 A1 ES 307292A1
Authority
ES
Spain
Prior art keywords
parabolic
lateral surfaces
translation
manufacture
legally binding
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
ES0307292A
Other languages
Spanish (es)
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.)
Ducellier et Cie
Original Assignee
Ducellier et Cie
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 Ducellier et Cie filed Critical Ducellier et Cie
Publication of ES307292A1 publication Critical patent/ES307292A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
    • B21D53/883—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards reflectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

Process for the manufacture of a parabolic mirror apparently rectangular, particularly for headlights of motor vehicles, characterized in that a paraboloid of revolution is truncated parallel or substantially parallel to its axis in order to obtain opposite lateral surfaces, parallel or no, delimited by one or several parabolic arcs, which allows mainly having a minimum radius in the four angles of the rectangular parabolic section, and in this way obtaining an optimum performance of the parabolic surface useful in a given space: the paraboloid of revolution it is polished before the conformation of the lateral surfaces; the surface or lateral surfaces are obtained by placing the parabolic useful surface strongly to obtain between a matrix and a piece of form and collapsing the parabolic sector not captured so that the opposite lateral surfaces are delimited by parabolic longitudinal arcs; and the parabolic sector not caught between the matrix and the piece of form is struck down by means of plates. (Machine-translation by Google Translate, not legally binding)
ES0307292A 1964-01-31 1964-12-18 Procedure for the manufacture of an apparently rectangular parabolic mirror, particularly for the headlamps of automobile vehicles. (Machine-translation by Google Translate, not legally binding) Expired ES307292A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR962251A FR1391994A (en) 1964-01-31 1964-01-31 Method for manufacturing a rectangular parabolic mirror, in particular for a motor vehicle headlight, and mirror obtained by implementing said method

Publications (1)

Publication Number Publication Date
ES307292A1 true ES307292A1 (en) 1965-04-16

Family

ID=8822188

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0307292A Expired ES307292A1 (en) 1964-01-31 1964-12-18 Procedure for the manufacture of an apparently rectangular parabolic mirror, particularly for the headlamps of automobile vehicles. (Machine-translation by Google Translate, not legally binding)

Country Status (5)

Country Link
BE (1) BE658816A (en)
DE (1) DE1272871B (en)
ES (1) ES307292A1 (en)
FR (1) FR1391994A (en)
NL (1) NL6501193A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5404642A (en) * 1994-01-31 1995-04-11 The Torrington Company Method of assembling a bearing

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE56681C (en) * CH. A. KNIGHT und C. P. HlGGINS in Glasgow, 62 St. Vincent Street Hydraulic press for pre-pressing wrought-iron collecting boxes or saddles for steam boilers according to the "Babcock & Wilcox system."
US1248482A (en) * 1912-12-30 1917-12-04 Hydraulic Pressed Steel Company Process of producing pressed metal articles.
FR1068922A (en) * 1952-10-01 1954-07-01 Improvements to mirrors, reflectors and projectors

Also Published As

Publication number Publication date
BE658816A (en)
NL6501193A (en) 1965-08-02
FR1391994A (en) 1965-03-12
DE1272871B (en) 1968-07-18

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