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
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.
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) |
-
1914
- 1914-04-27 GB GB191410368D patent/GB191410368A/en not_active Expired
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