Robert L. Beran - Covington VA Steven P. Metzler - Covington VA
Assignee:
Westvaco Corporation - New York NY
International Classification:
G01N 324
US Classification:
73150A
Abstract:
This invention relates to an apparatus and method for measuring the peel strength of a paper joint which is adhesively bonded. Such structures of this type, generally, allow the peel strength of the adhesively bonded joint to be accurately and repeatably measured in an inexpensive manner.
Robert L. Beran - Covington VA Ralph S. Peterson - Clifton Forge VA William J. Thurston - Covington VA
Assignee:
Westvaco Corporation - New York NY
International Classification:
D21F 156
US Classification:
162353
Abstract:
The lateral edges of a papermachine forming fabric pond are contained by a deckle board having a bottom edge positioned above the forming fabric upper surface elements but below the fabric supported stock pond surface. Lateral edges of the forming fabric run under the deckle board and upon an edge support beam within an elongated fluid channel between the outside surfaces of the deckle board structure and the inside surfaces of the edge support beam. Fluid flow within the elongated fluid channel, preferably independent of the papermachine headbox slice opening, supplies the elongated fluid channel volume for a fluid barrier to pond stock loss under the deckle board bottom edge.
Apparatus And Method For Determining Paperboard Thermal Conductivity
Robert Lynn Beran - Covington VA James Arthur Rule - Lexington VA
Assignee:
Westvaco Corporation - New York NY
International Classification:
G01N 2518
US Classification:
374 44
Abstract:
This invention relates to an apparatus and method for determining paperboard thermal conductivity. Such structures of this type, generally, determine the thermal conductivity of a planar material, such as paperboard or insulating foams. The apparatus is designed to characterize the heat flow from a heated brass cylinder, through a flat paperboard sample, and into another brass cylinder. The brass cylinders are fully insulated, except at the sample interface. During the test, which is in a transient state, the hot mass loses energy, raising the temperature of the cooler mass as the two masses approach an intermediate equilibrium temperature. Knowing that the brass masses are fully insulated, except for the heat transfer interface, and knowing the physical properties of the masses, the only unknown in the mathematical model describing the experiment is the thermal conductivity, k, of the paperboard sample, which enables its determination.
Robert L. Beran - Covington VA John DeLigt - Covington VA
Assignee:
Westvaco Corporation - New York NY
International Classification:
D21F 102
US Classification:
138106
Abstract:
Flocs of papermaking fiber are dispersed by a multiplicity of white-water jets directed into a papermachine headbox prior to the slice opening. Jet direction is oriented counter-flow to the papermaking stock slice flow to create maximum turbulence, fluid shear and energy dissipation. Such jets issue from nozzle orifices in the slice profiling bar and are supplied with fluid through a two-stage manifold system. To preserve vertical plane pliability of the conduit-connected profiling bar, section area of the profiling bar between nozzles is minimized. Self sealing, push fit, fluid conduit connections with the jet nozzle orifices are made with flexible conduits between a sectional bar type of intermediate header and the profiling bar.
Robert L. Beran - Covington VA Stephen Nicholson - Covington VA Mark A. Taylor - Covington VA
Assignee:
Westvaco Corporation - New York NY
International Classification:
D21F 156
US Classification:
162353
Abstract:
To protect the paper machine fourdrinier screen, deckle blades are fabricated with a soft polymer (polytetrafluoroethylene) lower edge having little adhesive affinity for either papermaking fiber or traditional plastic bonding compounds. Necessary structural rigidity is contributed to the assembly by a mechanical cladding of suitably stiff polymer plates that are adhesively bonded to a compatible plastic mounting body.
Papermachine Headbox Profiling Bar With Fluid Discharge Orifices Along Its Length
Robert L. Beran - Covington VA John DeLigt - Covington VA
Assignee:
Westvaco Corporation - New York NY
International Classification:
D21F 102
US Classification:
162344
Abstract:
Flocs of papermaking fiber are dispersed by a multiplicity of white-water jets directed into a papermachine headbox prior to the slice opening. Jet direction is oriented counterflow to the papermaking stock slice flow to create maximum turbulence, fluid shear and energy dissipation. Such jets issue from nozzle orifices in the slice profiling bar and are supplied with fluid through a two-stage manifold system. To preserve vertical plane pliability of the conduit-connected profiling bar, section area of the profiling bar between nozzles is minimized. Self sealing, push fit, fluid conduit connections with the jet nozzle orifices are made with flexible conduits between a sectional bar type of intermediate header and the profiling bar.
Height Measurement Apparatus For Determining The Volume/Density Of Wood Chips On A Conveyor
Robert Lynn Beran - Covington VA David D. Mulligan - Covington VA Lawrence Hoy James - Raleigh NC
Assignee:
Westvaco Corporation - New York NY
International Classification:
G01G 1114 B65G 4300 B65G 4700 D21F 1100 D21F 1300
US Classification:
177 16
Abstract:
This invention relates to a height measurement apparatus for determining volume/density of wood chips on a conveyor. Such structures of this type, generally, employ the use of contacts that ride on top of the pile of wood chips in order to more accurately measure the volume and density of the wood chips.
A paper machine deckle board is supported and protected from fiber accumulations by a multi-functional structure which adjustably positions the deckle board with an integrated flushing water conduit and film distribution fountain.
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