| 摘要 |
<p>S P E C I F I C A T I O N HAY ROLL FORMING MACHINE A machine to form compact rolls of hay of substantial size by picking up a swath or windrow of hay and the like from a field, engage it by cooperating upper and lower endless flexible aprons driven in suitable directions to coil the hay into a compact roll while supported upon floor means mounted stationarily in the bottom of the machine to effect baling of all the hay without loss upon the ground. As the roll type bale of hay increases in diameter, the upper apron engages the upper portion thereof and applies constant unit pressure thereon to produce substantially uniform density throughout the roll regardless of diameter thereof. Tension spring means are used to produce the pressure applied to the roll by the upper apron to effect such constant unit pressure upon the roll.</p> |
