Abstract A broke receiver chamber located beneath the dryer section of a papermaking machine which includes an upper door assembly which provides access to the chamber for the broke, a lower door which allows removal of the broke from the chamber, and either seals or an upper door operating system which precludes passage of air upwardly from the chamber into the dryer section. The upper door assembly may comprise a first set of doors and a second set of doors therebeneath with an air lock inbetween, the upper door operating system including a motor and a first door actuator connected to the first set of doors and a second door actuator connected to the second set of doors and an interlock within a controller to prevent simultaneous opening of the first and second doors.
Inventors
👤 Stanley C Williams
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-11-04 22:27
CPC Classifications
D; D21; D21F; D21F7/00; D21F7/04; D21F5/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
52 words
The chamber as claimed in claim 1 wherein said upper door means comprises a rotatable door having at least three portions in angularly spaced relation about a common axis of rotation to provide substantially continuous air sealing between said chamber and said dryer section, for sealed downward passage of said waste product.
Claim 2
Dependent Claim
71 words
The chamber as claimed in claim 1 wherein said upper door means comprises at least a first door means to provide downward access of said waste product into a lock, and a second door means therebeneath to provide an exit downwardly from the lock, and including means interconnecting said first door means and second door means to preclude simultaneous opening thereof, whereby upward ventilation of said dryer section is substantially precluded.
Claim 3
Dependent Claim
72 words
The chamber as claimed in claim 3 wherein said first door means includes a plurality of rotatable broke paddles to provide downward feeding of said waste product, said paddles passing through third apertures in said first door means, and control means to position a said paddle in each said third aperture in substantial blocking relation therewith on opening of said second door means, whereby the prevention of upward ventilation therepast is maintained.