| 摘要 |
A manually operated log breaking device with a longitudinally extending lever member having a first pressure plate attached at one end portion and a second pressure plate attached to the first pressure plate in a hinged relationship, two sets of lever members extending from the first and second pressure plates in a hinged relationship to same and at the free end portions joined in a hinged relationship to a third set of lever members, having a third pressure plate attached in a hinged relationship at the free end portion of the third set of lever members, the pressure plates and lever members coacting as a link or gear system for increasing the resulting power of a manual force applied to the free end portion of the longitudinally extending lever member.
|
