GB344633A - Improvements in or relating to telephone pay stations - Google Patents
Improvements in or relating to telephone pay stationsInfo
- Publication number
- GB344633A GB344633A GB533730A GB533730A GB344633A GB 344633 A GB344633 A GB 344633A GB 533730 A GB533730 A GB 533730A GB 533730 A GB533730 A GB 533730A GB 344633 A GB344633 A GB 344633A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coin
- operated
- magnet
- receiver
- projection
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
- H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Signal Processing (AREA)
- Prepayment Telephone Systems (AREA)
- Interface Circuits In Exchanges (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
Abstract
344,633. Coin-freed telephone apparatus. TELEPHON-APPARAT-FABRIK E. ZWIETUSCH & CO., GES., 6, Salzufer, Charlottenburg, Berlin. Feb. 17, 1930, No. 5337. Convention date, Nov. 14, 1929. [Class 27.] In a telephone paystation of the prepayment type wherein collection or refund of coins occurs on the replacement of the receiver, means are provided which prevent refund until either the collecting magnet is operated or the connection is released. The Figure shows apparatus at the paystation. After removal of the receiver from the switchhook HU the coin is inserted in the slot 1 and is held in an intermediate position by a projection 7 on the switchhook. When the dial switch is operated a member MF tests for the presence of the coin which if absent allows a contact to short circuit the dial springs. Upon replacement of the receiver the projection 7 releases the coin the movement of which is again checked by projection 9 operated by a magnet Sp. If the call is effective, magnet KM is operated and the flap 4 is moved into the dotted position to allow collection of the coin in the chamber 2. In the event of an ineffective call magnet KM remains inoperative and upon release of the exchange selectors relay Sp is de-energized to permit refund of the coin through chamber 3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET40511D DE581835C (en) | 1929-11-14 | 1929-11-14 | Circuit arrangement for coin telephones |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB344633A true GB344633A (en) | 1931-03-12 |
Family
ID=7560777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB533730A Expired GB344633A (en) | 1929-11-14 | 1930-02-17 | Improvements in or relating to telephone pay stations |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE367704A (en) |
| CH (1) | CH145794A (en) |
| DE (1) | DE581835C (en) |
| FR (1) | FR688476A (en) |
| GB (1) | GB344633A (en) |
| NL (1) | NL29441C (en) |
-
0
- BE BE367704D patent/BE367704A/xx unknown
- NL NL29441D patent/NL29441C/xx active
-
1929
- 1929-11-14 DE DET40511D patent/DE581835C/en not_active Expired
-
1930
- 1930-01-20 FR FR688476D patent/FR688476A/en not_active Expired
- 1930-02-06 CH CH145794D patent/CH145794A/en unknown
- 1930-02-17 GB GB533730A patent/GB344633A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL29441C (en) | |
| CH145794A (en) | 1931-03-15 |
| DE581835C (en) | 1933-08-03 |
| BE367704A (en) | |
| FR688476A (en) | 1930-08-23 |
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