| 摘要 |
SICKLE GUARD HAVING ADJUSTABLE KNIFE SECTION HOLD-DOWN STRUCTURE The upper and lower finger portions of the sickle guard comprise two separate components which are disconnected at their tips so that the knife sections of the sickle can project forwardly beyond at least one of the fingers during operation and thereby provide a self-cleaning action for the gap defined between the two fingers and through which the sickle reciprocates. The size of the gap can be precisely adjusted for maximum cutting efficiency through the use of an adjusting set screw adjacent the rear of each upper finger which incrementally forces the two fingers apart in a fulcruming action to the extent permitted by mounting bolts of the guard when the screw is operated. |
