FR761953A - Process for the production of spherical caps for concave and convex mirrors - Google Patents

Process for the production of spherical caps for concave and convex mirrors

Info

Publication number
FR761953A
FR761953A FR761953DA FR761953A FR 761953 A FR761953 A FR 761953A FR 761953D A FR761953D A FR 761953DA FR 761953 A FR761953 A FR 761953A
Authority
FR
France
Prior art keywords
concave
production
spherical caps
convex mirrors
mirrors
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.)
Ver Deutsche Metallwerke AG
Original Assignee
Ver Deutsche Metallwerke AG
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 Ver Deutsche Metallwerke AG filed Critical Ver Deutsche Metallwerke AG
Application granted granted Critical
Publication of FR761953A publication Critical patent/FR761953A/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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/025—Means for controlling the clamping or opening of the moulds
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/029—Closing or sealing means

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR761953D 1932-09-12 1933-09-12 Process for the production of spherical caps for concave and convex mirrors Expired FR761953A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE761953X 1932-09-12

Publications (1)

Publication Number Publication Date
FR761953A true FR761953A (en) 1934-03-31

Family

ID=6666596

Family Applications (1)

Application Number Title Priority Date Filing Date
FR761953D Expired FR761953A (en) 1932-09-12 1933-09-12 Process for the production of spherical caps for concave and convex mirrors

Country Status (1)

Country Link
FR (1) FR761953A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2296492A1 (en) * 1975-01-02 1976-07-30 Black Sivalls & Bryson Inc PROCESS FOR THE MANUFACTURING OF REVERSE BOMBING RUPTURE DISCS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2296492A1 (en) * 1975-01-02 1976-07-30 Black Sivalls & Bryson Inc PROCESS FOR THE MANUFACTURING OF REVERSE BOMBING RUPTURE DISCS

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