GB191410368A - Improvements in Apparatus for Reading by Means of the Ear. - Google Patents

Improvements in Apparatus for Reading by Means of the Ear.

Info

Publication number
GB191410368A
GB191410368A GB191410368DA GB191410368A GB 191410368 A GB191410368 A GB 191410368A GB 191410368D A GB191410368D A GB 191410368DA GB 191410368 A GB191410368 A GB 191410368A
Authority
GB
United Kingdom
Prior art keywords
letterpress
line
opening
blind persons
light
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
Inventor
Edmund Edward Fournier-D Albe
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191410368A publication Critical patent/GB191410368A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute
    • G09B21/001—Teaching or communicating with blind persons
    • G09B21/006—Teaching or communicating with blind persons using audible presentation of the information

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

10,368. Albe, E. E. r. d'. April 27. Blind persons, communicating with.-Apparatus is provided for enabling blind persons to read ordinary letterpress by means of sounds. This apparatus comprises a disk a having a series of concentric circles of perforations or of alternate transparent and opaque portions, which is rotated in front of a line source of light e, for example a Nernst lamp, so as to furnish an intermittent line of luminous dots of different frequencies. This line is projected by an optical system through an opening i upon the letterpress j, the light reflected from the letterpress falling upon selenium or other lightsensitive substance h connected to a telephone receiver n. The sheet of letterpress is carried by feed-rollers which are mounted in a frame traversed across the opening i by rack-andpinion gear.
GB191410368D 1914-04-27 1914-04-27 Improvements in Apparatus for Reading by Means of the Ear. Expired GB191410368A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191410368T 1914-04-27

Publications (1)

Publication Number Publication Date
GB191410368A true GB191410368A (en) 1915-03-11

Family

ID=32583610

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191410368D Expired GB191410368A (en) 1914-04-27 1914-04-27 Improvements in Apparatus for Reading by Means of the Ear.

Country Status (1)

Country Link
GB (1) GB191410368A (en)

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