Patent ID: 11946202
Assignee: FUTURA S.P.A.
Field: Other special machines (Mechanical engineering)
Classification: CPC D  B | IPC B  D

Claim 17:
18. The calender according to claim 17, wherein on each of the external walls of the fixed structure are applied:
a first of the lower levers controlled by an actuator that controls rotation of the first lower lever around a pin thereof with a horizontal axis and by means of which the first lower lever is connected to the respective wall, a free front end of said first lower lever being concave with the concavity facing downwards;
a first of the upper levers controlled by an actuator that controls rotation of the first upper lever around a pin thereof with a horizontal axis and by means of which the first upper lever is connected to the respective wall, a free front end of said first upper lever being concave with the concavity facing upwards,
and, on each of the internal walls of the fixed structure are applied:
a second of the lower levers controlled by an actuator that controls rotation of the second lower lever around a pin thereof with a horizontal axis and by means of which the second lower lever is connected to the respective wall, an intermediate part of said second lower lever being concave with the concavity facing upwards; and
a second of the upper levers controlled by an actuator that controls rotation of the second upper lever around a pin thereof with a horizontal axis and by means of which the second upper lever is connected to the respective wall, a front part of said second upper lever being concave with the concavity facing a rear part of the said wall only when the calender is in operation.