发明名称 |
Telephone metering device for subscriber's appts. - has disabling lock with lever engaging projections on disc at end of lock barrel |
摘要 |
<p>The telephone metering device has the barrel of the disabling lock provided with a concentric ratchet disc at the end opposite that with the insertion slot for the key. The disc has ratchet-type projections on its end face. A return spring presses the end of a single-arm ratchet lever against the projections. The lever is pivoted to a base plate carrying the lock's casing. The free end of the lever is forked and engages with this forked end the lower end of the lock's barrel. The lever is S-shaped. The lever's return spring is fixed to the lock's casing.</p> |
申请公布号 |
DE2812213(A1) |
申请公布日期 |
1979.10.04 |
申请号 |
DE19782812213 |
申请日期 |
1978.03.20 |
申请人 |
FRIEDRICH MERK TELEFONBAU GMBH |
发明人 |
KUHNERT,HARALD,ING.;HENDEL,HORST,ING. |
分类号 |
H04M1/667;H04M15/28;(IPC1-7):H04M1/66 |
主分类号 |
H04M1/667 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|