Rotary support for rolls of convoluted webs and means for dampin

Details Rotary support for rolls of convoluted webs and means for dampin Rotary support for rolls of convoluted webs and means for dampin

1980-05-22

1982-02-02

Christian, Leonard D.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 55, 74574, B65H 1708, F16F 1510

Patent

active

043135773

ABSTRACT:
A roll of convoluted paper web rests on two parallel supporting rollers having hollow housings for coaxial dynamic damping systems. The damping systems have cylindrical masses with trunnions which are surrounded by rubber rings fitting into sleeves which are snugly inserted into the hollow housings of the respective supporting rollers. The rings maintain the peripheral surfaces of the masses out of contact with the internal surfaces of the corresponding sleeves. The natural oscillation frequency of each dynamic damping system is or can be attuned to the natural oscillation frequency of the corresponding housing prior to assembly of the housings with the associated damping systems. The damping systems ensure that the peripheral surfaces of the housings remain in at least substantially uninterrupted contact with the outermost convolution of the roll of convoluted paper web. If the web is to be collected by a core within the roll, one of the housings is driven to move the web lengthwise from a source of supply toward the roll.

REFERENCES:
patent: 2198403 (1940-04-01), Canady
patent: 3237877 (1966-03-01), Printz et al.
patent: 3667695 (1972-06-01), Brownscombe
patent: 3902677 (1975-09-01), Wolf

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