| 摘要 |
A mechanical brake for arresting movement of the armature of a linear electric motor in the absence of electrical power comprising a pivotably mounted plate (17) having an aperture (19) for receiving a member (10) attached to the armature of the motor, and an electrically operated holding device (23) contacting a free end (21) of the plate and arranged to hold the plate in a condition to permit movement of the member while electrical power is present and to permit the plate to pivot around its second end (20) to a jamming position in the absence of electrical power. |
