| 摘要 |
A pack of blades is held together by means of cross-members (15) and it may be extracted in block from one end (8) of the frame through the opening (9) after having removed the wedges (6) and the inserts (5) for the purpose of substituting blades which have become worn out and permitting the insertion of a new pack of blades suitably pre-arranged so as to reduce to a minimum the period of time during which the machine must remain idle. |
