Scott Paper Company

S.d. Warren Company

Other

John O Peterson

Abbott W Mosher

Gregory H Hale

Douglas A Quist

John A Mattor

Eric R Ellis

Kenneth B Jewett

Fred J Ferrari

Joyce M Harrington

Joyce H Anderson

Fredrick A Loft

The present invention relates to a connector assembly for a microphone which allows the microphone and cord to be independently rotated thereby preventing the cord from twisting and distorting. The device includes a first connector having a cylindrical housing with a plurality of female ports on an end thereof for receiving the male prongs on an end of the microphone. Received within the cylindrical housing proximal the opposing end are a plurality of spring biased pins in electrical communication with the ports. The device also includes a second connector having a cylindrical housing which may be rotatably coupled to the first connector. An end of the housing is open and has a horizontal, substantially circular circuit board proximal thereto. On the upper surface of the circular circuit board are a plurality of concentric electrically conductive paths. Received within the second connector proximal the opposing end are a plurality of electrical contacts for selectively engaging conventional receptacles on a microphone cord plug. The assembly interconnects the microphone and cord so that as the microphone is rotated relative to the cord, electrical communication therebetween is maintained due to the spring biased pins sliding along the circular conductive paths.

Rotatable connector for a microphone

Disclosed is a new internally heated calendering roll capable of finishing paper satisfactorily at the temperatures, heat loads and pressures required for substrata thermal molding. The roll is internally heated and has a circumferential wall at least 4 inches thick. It includes means to provide heat into the interior of the circumferential wall to be conducted through the wall to the outer surface for heating the paper web being calendered by the roll. The roll is constructed of a first material with a thin circumferential surface layer of a second, cermet or ceramic containing material. The surface layer material has a hardness of at least 530 Vickers and a thickness of between .003 inch and .030 inches. It is capable of being polished to a roughness of less than 6 micro inches Ra. The roll has uniformly spaced conduits for passing heated fluid located no more than 2 inches from the outer edge of the conduits to the circumferential surface. The roll is capable of conducting at least 8,500 BTU/Sq. Ft./Hr. heat through the roll without creating tensile hoop stress in excess of 1/2 of the yield strength of the first material.

Method and apparatus for calendering paper and internally heated roll

Disclosed is a polishing doctor blade for resurfacing the surface of a metal calendering roll while in operation, comprising a working surface containing diamond abrasive particles harder than the surface material.

Polishing doctor blade with diamond abrasive particles for a calendering

Disclosed is a new internally heated calendering roll capable of finishing paper satisfactorily at the temperatures, heat loads and pressures required for substrata thermal molding. The roll is internally heated and has a circumferential wall at least 4 inches thick. It includes means to provide heat into the interior of the circumferential wall to be conducted through the wall to the outer surface for heating the paper web being calendered by the roll. The roll is constructed of a first material with a thin circumferential surface layer of a second, cermet or ceramic containing material. The surface layer material has a hardness of at least 530 Vickers and a thickness of between 0.003 inch and 0.030 inches. It is capable of being polished to a roughness of less than 6 micro inches Ra. The roll has uniformly spaced conduits for passing heated fluid located no more than 2 inches from the outer edge of the conduits to the circumferential surface. The roll is capable of conducting at least 8,500 BTU/Sq. Ft./Hr. heat through the roll without creating tensile hoop stress in excess of 1/2 of the yield strength of the first material.

Method and apparatus for calendering paper with internally heated roll

Disclosed is a coated sheet material comprising a release medium having thereon a gluable coating for use in making a decorative heat-and-pressure consolidated laminate. The gluable coating is transferred during the consolidation step from the release medium to the back side of the laminate, and the laminate can then be glued to a reinforcing substrate with conventional glues and without sanding the back of the laminate. The transferable gluable coating comprises a linear copolymer of (A) maleic anhydride or maleic acid or maleic acid salt and (B) ethylene or a vinyl monomer having a side chain of an aliphatic group with up to four carbon atoms or an alkoxy group with up to four carbon atoms.

Coated sheet material for use in making decorative laminates

A presensitized planographic printing plate which is imaged by exposure to conventional ultraviolet light sources through a mask which is formed on the surface of the plate by means of a laser beam.

Presensitized printing plate with in-situ, laser imageable mask

A planographic printing plate which is imaged by means of a laser beam in combination with overall exposure to ultraviolet light and developed by means which are conventional in lithographic art.

Laser imaging a lanographic printing plate

Material is transferred by a laser beam from a transparent carrier film to a lithographic surface, thereby producing a planographic printing plate and a film having clear areas corresponding to the image on the plate.

Printing plate by laser transfer

A release paper which is particularly useful in platen press applications and in the casting of self-supporting films which comprises a fibrous base having a coating thereon derived from an aqueous coating composition containing a release agent, a monomeric polyhydric alcohol and a cross-linkable, thermosetting resin.

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Standish, ME, United States of America

John O Peterson