| 摘要 |
<p>"Machine for sealing cardboard boxes of constant height". * * * * An upper taping head is fixed to a vertically movable cross-piece whose ends are engaged in fixed support and guide columns. To adjust the position of said cross-piece is provided at least one threaded rod born in a rotating manner by one end of the cross-piece and engaged in a nut screw which is fastened to the corresponding fixed column. A control crank may be placed on the top of the threaded rod or shifted toward the centre-line of the cross-piece and connected to said cross-piece by a transmission chain born by the cross-piece. A second threaded rod may be provided for the other end of the movable cross-piece and connected by a transmission chain born by the cross-piece to the first rod and to a control crank shifted toward the centre-line of the column.</p> |
