| 摘要 |
A directly or indirectly spring-loaded piece (1) is temporarily lockable in a position above the dial button (5) on the phone, and if the actuator part (6) of the device is handled then this piece is released, causing it to depress the button and dial a pre-programmed telephone number to raise the alarm. MECHANICAL ENGINEERING - The spring-loaded piece is a mouse trap frame (4), a press piece (3) being slidably mounted on the top frame member. |
