IT946268B - Dispositivo di commutazione per circuito di selezione per proiet tore di diapositive - Google Patents

Dispositivo di commutazione per circuito di selezione per proiet tore di diapositive

Info

Publication number
IT946268B
IT946268B IT8961671A IT8961671A IT946268B IT 946268 B IT946268 B IT 946268B IT 8961671 A IT8961671 A IT 8961671A IT 8961671 A IT8961671 A IT 8961671A IT 946268 B IT946268 B IT 946268B
Authority
IT
Italy
Prior art keywords
switching device
selection circuit
slide projector
projector
slide
Prior art date
Application number
IT8961671A
Other languages
English (en)
Original Assignee
Gaf Corp
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 Gaf Corp filed Critical Gaf Corp
Application granted granted Critical
Publication of IT946268B publication Critical patent/IT946268B/it

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • G03B23/02—Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor
    • G03B23/06—Devices for changing pictures in viewing apparatus or projectors in which a picture is removed from a stock and returned to the same stock or another one; Magazines therefor with rotary movement
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B23/00—Devices for changing pictures in viewing apparatus or projectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/58—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch
    • H01H19/585—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch provided with printed circuit contacts

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Slide Switches (AREA)
  • Projection Apparatus (AREA)
IT8961671A 1970-06-30 1971-06-28 Dispositivo di commutazione per circuito di selezione per proiet tore di diapositive IT946268B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5116970A 1970-06-30 1970-06-30

Publications (1)

Publication Number Publication Date
IT946268B true IT946268B (it) 1973-05-21

Family

ID=21969751

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8961671A IT946268B (it) 1970-06-30 1971-06-28 Dispositivo di commutazione per circuito di selezione per proiet tore di diapositive

Country Status (9)

Country Link
JP (1) JPS5139536B1 (it)
BE (1) BE769233A (it)
CA (1) CA942807A (it)
CH (1) CH539332A (it)
DE (2) DE2132297C3 (it)
FR (1) FR2100035A5 (it)
GB (1) GB1361023A (it)
IT (1) IT946268B (it)
NL (1) NL145984B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54123050A (en) * 1978-03-17 1979-09-25 Toshiba Corp Liquid crystal display device
AT387472B (de) * 1981-11-03 1989-01-25 Kapsch Ag Drehschalter- und/oder drehpotentiometer-anordnung
JPS58106524A (ja) * 1981-12-18 1983-06-24 Mitsubishi Electric Corp 液晶表示装置
GB2129219A (en) * 1982-10-08 1984-05-10 Tsuyama Mfg Co Ltd Switching apparatus
JPS61125U (ja) * 1985-04-17 1986-01-06 株式会社日立製作所 液晶表示装置

Also Published As

Publication number Publication date
NL7108792A (it) 1972-01-03
DE2132297A1 (de) 1972-01-05
DE2132297C3 (de) 1974-02-07
JPS5139536B1 (it) 1976-10-28
CA942807A (en) 1974-02-26
DE2132297B2 (de) 1973-07-12
NL145984B (nl) 1975-05-15
CH539332A (de) 1973-07-15
GB1361023A (en) 1974-07-24
BE769233A (fr) 1971-11-03
DE7124972U (de) 1971-11-04
FR2100035A5 (it) 1972-03-17

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