FR2226085A5 - Electronic appts. for drawing lots - is by back projection of numbers onto a viewing screen - Google Patents

Electronic appts. for drawing lots - is by back projection of numbers onto a viewing screen

Info

Publication number
FR2226085A5
FR2226085A5 FR7310005A FR7310005A FR2226085A5 FR 2226085 A5 FR2226085 A5 FR 2226085A5 FR 7310005 A FR7310005 A FR 7310005A FR 7310005 A FR7310005 A FR 7310005A FR 2226085 A5 FR2226085 A5 FR 2226085A5
Authority
FR
France
Prior art keywords
viewing screen
back projection
screen
drawing lots
numbers onto
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
FR7310005A
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.)
DENAT JEAN
Original Assignee
DENAT JEAN
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 DENAT JEAN filed Critical DENAT JEAN
Priority to FR7310005A priority Critical patent/FR2226085A5/en
Application granted granted Critical
Publication of FR2226085A5 publication Critical patent/FR2226085A5/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C15/00—Generating random numbers; Lottery apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Abstract

The roll of film denoting a series of numerical or alphabetic characters is projected onto a viewing screen (5). The film can be stopped automatically, to give a particular character, denoting a winning ticket, by a seated operator whose hand is in front of an electronic eye, connected to the control system for the projector (H). The screen may be covered by sliding doors (10) which obscure it from view of the audience, seated in front of the screen (5), until the projector (H) is stopped and the winning ticket displayed.
FR7310005A 1973-03-20 1973-03-20 Electronic appts. for drawing lots - is by back projection of numbers onto a viewing screen Expired FR2226085A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7310005A FR2226085A5 (en) 1973-03-20 1973-03-20 Electronic appts. for drawing lots - is by back projection of numbers onto a viewing screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7310005A FR2226085A5 (en) 1973-03-20 1973-03-20 Electronic appts. for drawing lots - is by back projection of numbers onto a viewing screen

Publications (1)

Publication Number Publication Date
FR2226085A5 true FR2226085A5 (en) 1974-11-08

Family

ID=9116582

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7310005A Expired FR2226085A5 (en) 1973-03-20 1973-03-20 Electronic appts. for drawing lots - is by back projection of numbers onto a viewing screen

Country Status (1)

Country Link
FR (1) FR2226085A5 (en)

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Legal Events

Date Code Title Description
ST Notification of lapse