Art of plate making

Claim 2

In an apparatus for use in exposing a light-sensitive plate to a light image through a negative, a support table for supporting the plate, a negative carrying chase for supporting the negative, a chase carrier having a chase supporting portion for supporting said chase in an overlying relationship with respect to a plate on said table, means for moving said chase supporting portion in a first direction relative to said table and plate to accurately position said chase relative to the plate in said first direction, said chase supporting portion being fixed against movement in a second direction substantially perpendicular to said first direction, and means for moving said plate relative to said table and relative to said chase carrier in a second direction substantially perpendicular to said first direction, said chase and chase carrier having portions which align to provide a rough positioning of said chase in said first direction, said means for moving said chase supporting portion in said first direction comprising micrometer adjustment means for effecting a fine positioning of said chase in said first direction, said chase carrier and chase having a plurality of equally spaced openings through which pins are adapted to extend to provide said rough positioning of said chase, and said micrometer adjustment means being effective to move said chase supporting portion and chase a distance at least equal to the distance between the centers of said openings.

Claim 3

An apparatus as defined in claim 1 wherein said chase carrier includes a pair of block members adapted to be fixed from movement relative to said table, and said means for moving said chase supporting portion comprises a mechanism acting between at least one of said block members and said chase supporting portion of said chase carrier.

Claim 4

In an apparatus for use in the making of a pair of plates having cooperating material forming projections thereon, a support table Having first and second plate supporting surfaces located on the opposite sides of the table, means supporting said table for movement from a first position wherein said first surface is located to support one of the plates and second position wherein said second surface is located to support the other of said plates, a chase carrier adapted to be located overlying each of said plates when located on said table, a chase for carrying a negative and carried by said chase carrier, and means for moving said chase and each plate relatively in transverse directions to accurately locate said chase and plates.

Claim 5

In an apparatus for use in the making of a pair of plates having cooperating material forming projections thereon, a support table Having first and second plate supporting surfaces located on the opposite sides of the table, means supporting said table for movement from a first position wherein said first surface is located to support one of the plates and second position wherein said second surface is located to support the other of said plates, a chase carrier adapted to be located overlying each of said plates when located on said table, a chase for carrying a negative and carried by said chase carrier, and means for moving said chase and each plate relatively in transverse directions to accurately locate said chase and plates.

Claim 6

An apparatus as defined in claim 3 wherein said chase carrier and said table have portions which align to provide a rough positioning of said chase carrier on either side of said table and relative to the plate carried thereon in one direction and a single micrometer adjustment means carried by said table and movable therewith and for effecting movement of each of said plates in said one direction for fine positioning thereof.

Claim 7

An apparatus as defined in claim 4 wherein said chase carrier is supported in a first position with respect to the plate supported on one side of said table and is inverted and supported in a second position with respect to a plate supported on the second side of the table, and a single micrometer adjustment mechanism for moving the chase carrier relative to each of the plates and effecting a fine positioning of the chase supported by the chase carrier in another direction substantially perpendicular to said one direction.

Claim 8

An apparatus as defined in claim 5 wherein said support table includes a plurality of equally spaced openings along opposite sides thereof, and said chase carrier supports block members having openings therein which align with openings in said table, and pin members for extending through said aligned openings and holding said block members from movement and removable to allow for repositioning of said chase carrier at different locations relative to each plate.

Claim 9

In an apparatus for use in exposing a transparency image to a flat, light-sensitive rectangular plate in a plurality of predetermined positions by exposing said plate to light through a transparency which is stepped to various locations to create said plurality of images, a flat rectangular table for supporting said plate, a plurality of spaced first registering elements on said table extending in parallel directions along two opposite edges of said rectangular table, plate mounting means for mounting said plate for movement in the plane of the table and in a direction parallel to the direction of extension of said first registering elements, a chase carrier adapted to overlie said plate and having second registering elements cooperable with corresponding first registering elements at opposite edges of the table for mounting said chase carrier for movement in a direction perpendicular to the direction of plate movement, a plurality of third registering elements extending in the direction of extension of the chase carrier and perpendicular to the direction of extension of said plurality of first registering elements, a chase for mounting a transparency to overlie said plate, fourth registering elements on said chase cooperable with said third registering elements for mounting said chase on said chase carrier in selected positions, said first, second, third and fourth registering elements comprising rough positioning means for locating said transparency in an approximate location with respect to a plate mounted on said table, a first fine adjustment means for moving said plate mounting means and plate therewith, and second fine adjustment means for moving said chase carrier and chase therewith.

Claim 10

In an apparatus for use in exposing a transparency image to a flat, light-sensitive rectangular plate in a plurality of predetermined positions by exposing said plate to light through a transparency which is stepped to various locations to create said plurality of images, a flat rectangular table for supporting said plate, a plurality of spaced first registering elements on said table extending in parallel directions along two opposite edges of said rectangular table, plate mounting means for mounting said plate for movement in the plane of the table and in a direction parallel to the direction of extension of said first registering elements, a chase carrier adapted to overlie said plate and having second registering elements cooperable with corresponding first registering elements at opposite edges of the table for mounting said chase carrier for movement in a direction perpendicular to the direction of plate movement, a plurality of third registering elements extending in the direction of extension of the chase carrier and perpendicular to the direction of extension of said plurality of first registering elements, a chase for mounting a transparency to overlie said plate, fourth registering elements on said chase cooperable with said third registering elements for mounting said chase on said chase carrier in selected positions, said first, second, third and fourth registering elements comprising rough positioning means for locating said transparency in an approximate location with respect to a plate mounted on said table, a first fine adjustment means for moving said plate mounting means and plate therewith, and second fine adjustment means for moving said chase carrier and chase therewith.

Claim 11

In an apparatus as defined in claim 7 wherein said first registering elements are located on one side of said table and further including fifth registering elements corresponding with said first registering elements and located on the other side of said Table for use in operating on a plate position on said other side of said table.

Claim 12

In an apparatus as defined in claim 8 wherein said first registering elements and said second registering elements comprise cooperating pins and holes, one on said table and one on said chase carrier, said one registering element on said table extending through said table to the opposite side thereof and consisting of said fifth registering elements on said opposite side of the table.

Claim 13

In an apparatus as defined in claim 7 further including means for exposing the transparency to light when the transparency is located in each of its plurality of predetermined locations as controlled by the registering elements, and fine adjustment means for said plate and chase carrier.

Claim 14

In an apparatus for use in exposing a light-sensitive plate to a light image through a negative, a support table for supporting the plate, a negative carrying chase for supporting the negative, a chase carrier having a chase supporting portion for supporting said chase in an overlying relationship with respect to a plate on said table, means for moving said chase supporting portion in a first direction relative to said table and plate to accurately position said chase relative to the plate in said first direction, said chase supporting portion being fixed against movement in a second direction substantially perpendicular to said first direction, and means for moving said plate relative to said table and relative to said chase carrier in a second direction substantially perpendicular to said first direction, said chase and chase carrier having portions which align to provide a rough positioning of said chase in said first direction, said means for moving said chase supporting portion in said first direction comprising micrometer adjustment means for effecting a fine positioning of said chase in said first direction, said chase carrier including a pair of block members adapted to be fixed from movement relative to said table, said means for moving said chase supporting portion comprising a mechanism acting between at least one of said block members and said chase supporting portion of said chase carrier, said block members being located at opposite ends of said chase supporting portion of said chase carrier and having openings therethrough, said table including a plurality of equally spaced openings at opposite edges thereof and adapted to align with said openings in said block members, and pin members extending through the openings in said block members and into the openings in said table and locking said block members from movement with respect to said table and removable to permit repositioning of said chase carrier along said table.

Claim 15

In an apparatus for use in exposing a light-sensitive plate to a light image through a negative, a support table for supporting the plate, a negative carrying chase for supporting the negative, a chase carrier having a chase supporting portion for supporting said chase in an overlying relationship with respect to a plate on said table, means for moving said chase supporting portion in a first direction relative to said table and plate to accurately position said chase relative to the plate in said first direction, said chase supporting portion being fixed against movement in a second direction substantially perpendicular to said first direction, and means for moving said plate relative to said table and relative to said chase carrier in a second direction substantially perpendicular to said first direction, said chase and chase carrier having portions which align to provide a rough positioning of said chase in said first direction, said means for moving said chase supporting portion in said first direction comprising micrometer adjustment means for effecting a fine positioning of said chase in said first direction, said chase carrier including a pair of block members adapted to be fixed from movement relative to said table, said means for moving said chase supporting portion comprising a mechanism acting between at least one of said block members and said chase supporting portion of said chase carrier, said block members being located at opposite ends of said chase supporting portion of said chase carrier and having openings therethrough, said table including a plurality of equally spaced openings at opposite edges thereof and adapted to align with said openings in said block members, and pin members extending through the openings in said block members and into the openings in said table and locking said block members from movement with respect to said table and removable to permit repositioning of said chase carrier along said table.

Claim 16

In an apparatus for use in exposing a light-sensitive plate to a light image through a negative, a support table for supporting the plate, a negative carrying chase for supporting the negative, a chase carrier having a chase supporting portion for supporting said chase in an overlying relationship with respect to a plate on said table, means for moving said chase supporting portion in a first direction relative to said table and plate to accurately position said chase relative to the plate in said first direction, said chase supporting portion being fixed against movement in a second direction substantially perpendicular to said first direction, and means for moving said plate relative to said table and relative to said chase carrier in a second direction substantially perpendicular to said first direction, said table and said chase carrier having portions which align to provide a rough relative positioning of said chase and plate in said second direction, and said means for moving said plate comprising micrometer adjustment means for effecting a fine relative positioning of said plate and chase in said second direction including a pair of spaced block members carried by said table for movement relative thereto, said block members having openings therethrough aligned With openings in said plate, separate pin members extending into said aligned openings locking said block members and plate together, and micrometer adjustment means for effecting movement of said block members.

Claim 17

In an apparatus for use in exposing a light-sensitive plate to a light image through a negative, a support table for supporting the plate, a negative carrying chase for supporting the negative, a chase carrier having a chase supporting portion for supporting said chase in an overlying relationship with respect to a plate on said table, means for moving said chase supporting portion in a first direction relative to said table and plate to accurately position said chase relative to the plate in said first direction, said chase supporting portion being fixed against movement in a second direction substantially perpendicular to said first direction, and means for moving said plate relative to said table and relative to said chase carrier in a second direction substantially perpendicular to said first direction, said table and said chase carrier having portions which align to provide a rough relative positioning of said chase and plate in said second direction, and said means for moving said plate comprising micrometer adjustment means for effecting a fine relative positioning of said plate and chase in said second direction including a pair of spaced block members carried by said table for movement relative thereto, said block members having openings therethrough aligned With openings in said plate, separate pin members extending into said aligned openings locking said block members and plate together, and micrometer adjustment means for effecting movement of said block members.

Claim 18

In an apparatus for use in exposing a light-sensitive plate to a light image through a negative, a support table for supporting the plate, a negative carrying chase for supporting the negative, a chase carrier having a chase supporting portion for supporting said chase in an overlying relationship with respect to a plate on said table, means for moving said chase supporting portion in a first direction relative to said table and plate to accurately position said chase relative to the plate in said first direction, said chase supporting portion being fixed against movement in a second direction substantially perpendicular to said first direction, and means for moving said plate relative to said table and relative to said chase carrier in a second direction substantially perpendicular to said first direction, and said chase and chase carrier having portions which align and attach said chase and chase carrier for movement together and provide a rough positioning of said chase in said first direction, said means for moving said chase supporting portion in said first direction comprising micrometer adjustment means for effecting a fine positioning of said chase in said first direction, said table and said chase carrier having portions which align and attach said chase carrier and said table and provide a rough relative positioning of said chase and plate in said second direction, and said means for moving said plate relative to said table comprising micrometer adjustment means for effecting a fine relative positioning of said plate and chase in said second direction.

Claim 19

In an apparatus for use in exposing a light-sensitive plate to a light image through a negative, a support table for supporting the plate, a negative carrying chase for supporting the negative, a chase carrier having a chase supporting portion for supporting said chase in an overlying relationship with respect to a plate on said table, means for moving said chase supporting portion in a first direction relative to said table and plate to accurately position said chase relative to the plate in said first direction, said chase supporting portion being fixed against movement in a second direction substantially perpendicular to said first direction, and means for moving said plate relative to said table and relative to said chase carrier in a second direction substantially perpendicular to said first direction, and said chase and chase carrier having portions which align and attach said chase and chase carrier for movement together and provide a rough positioning of said chase in said first direction, said means for moving said chase supporting portion in said first direction comprising micrometer adjustment means for effecting a fine positioning of said chase in said first direction, said table and said chase carrier having portions which align and attach said chase carrier and said table and provide a rough relative positioning of said chase and plate in said second direction, and said means for moving said plate relative to said table comprising micrometer adjustment means for effecting a fine relative positioning of said plate and chase in said second direction.