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US3623945A Expired / Lapsed US ⏱️ 0.0 years remaining

Wire-mounting arrangement on a twin-wire vertical papermaking machine

Assignee: Beloit Corp
•
Filing: 1969-07-25
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Granted: 1971-11-30
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Expires: 1989-07-25
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Abstract

Abstract A paper-machine-forming section wherein a web is formed between two generally vertically travelling wires trained over a plurality of guides in the forming section, the guides being arranged to define a serpentinelike path of travel for the opposed wire runs carrying a newly forming web therebetween. The plurality of guides (breast rolls and foils) are all mounted for their respective functions on a pair of selectively movable beams which permit rapid wire change or the like as desired with a single operation and similarly a rapid startup after such a wire change without the necessity of individually repositioning and readjusting the individual guide means. the movable beams are rigidly attached to the breast rolls and pivotally attached to a frame. Hydraulic pistons attached to the beam and to the frame accomplish the pivotal movement of the beam. A stop member attached to the frame limits the extent of the beam''s pivotal movement.

Inventors

  • 👤 Paul E Tommeraasen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 18:42
CPC Classifications
D; D21; D21F; D21F9/00; D21F9/003

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 43 words
The device as defined in claim 1, wherein each of the selectively movable beam means is pivotally mounted on a rigid frame means, and wherein said means for pivoting includes a power means connected therewith for selective pivotal movement of said beam means.
Claim 2
Dependent Claim 16 words
The device as defined in claim 2, wherein the power means comprise hydraulically actuated piston means.
Claim 3
Dependent Claim 59 words
The device as defined in claim 3, wherein the hydraulically actuated piston means comprises a pair of cooperating hydraulic piston means, one of said piston means having the cylinder thereof pivotally mounted on the rigid frame means and the other of said piston means having the cylinder thereof pivotally mounted on the piston rod of said one piston means.
Claim 4
Dependent Claim 27 words
The device as defined in claim 2, wherein the rigid frame means has a stop member connected thereto positively limiting the movement of the movable beams means.
Claim 5
Dependent Claim 54 words
The device as defined in claim 1, wherein each of the selectively movable beam means comprises an elongated body member having an upper and a lower end, a bearing mounting means connected to the upper end of said body member and a pivotal attachment means connected to the lower end of said body member.

References Cited (Backward Citations)

AU219338A Cited
US3149028A Cited
US3215593A Cited
US3262841A Cited
US3329561A Cited
US3326745A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-11-29 1975-05-31 1975-11-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-11-29 1979-05-31 1979-11-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-11-29 1983-05-31 1983-11-30 $7700.00 Window Closed / Lapsed

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