Imprinting cylinder with removable imprinting block

Claim 2

An imprinting cylinder including at least one removable imprinting block and structure defining at least one cavity in the imprinting cylinder in which each removable imprinting block is adapted to slide into a cavity in the imprinting cylinder and means for locking each imprinting block into printing position within its associated imprinting cylinder cavity in which the structure defining each cavity includes an opening for receipt of an imprinting block, an end wall, a flat base, one vertical side wall, and one slanted side wall and in which each imprinting block has a vertical side wall and a slanted side wall which mates with the slanted side wall of the imprinting cylinder and in which the means for locking each imprinting block into printing position within its associated imprinting cylinder cavity includes a locking arm screw mounted on the vertical side wall of the imprinting block to effect a pressure fit against the vertical side wall of the imprinting cylinder cavity as it is unscrewed from the imprinting block.

Claim 3

An imprinting cylinder as described in claim 1 including means for retaining the locking arm in locked position.

Claim 4

An imprinting cylinder as described in claim 2 in which the means for retaining the locking arm in locked position includes structure defining a hole in the handle of the locking arm and spring loaded pin means extending from the vertical side wall of the imprintiNg cylinder cavity for coacting with the hole in the handle of the locking arm.

Claim 5

An imprinting cylinder as described in claim 2 including upward extending flanges on each side of the imprinting block, a curved type block pad fixed over the base of the imprinting block, and tapered hot metal cast type slugs positioned over the type block pad and between the upward extending flanges to effect a type surface with a curvature paralleling the curvature of the imprinting cylinder.

Claim 6

An imprinting cylinder as described in claim 4 including removable means for retaining the tapered hot metal cast type slugs over the type block pad and between the upward extending flanges of the imprinting block.

Claim 7

An imprinting cylinder as described in claim 5 in which the tapered hot metal cast type slugs have shoulders extending from their ends and the removable means for retaining the tapered hot metal cast type slugs over the type block pads and between the upward extending flanges of the imprinting block includes clips extending over the tapered hot metal cast type slug shoulders and removably fixed to the upward extending flanges of the imprinting block.

Claim 8

An imprinting cylinder as described in claim 6 including pads between the clips and the tapered hot metal cast type slug shoulders to provide for pressure by the clips against the tapered hot metal cast type slug shoulders in the event of tolerance variations.

Claim 9

An imprinting cylinder as described in claim 6 including means for holding the tapered hot metal cast type slugs against an inner wall of an upward extending flange of the imprinting block and for preventing lateral movement of the tapered hot metal cast type slugs between the upward extending flanges of the imprinting block prior to the fixing of the clips to the upward extending flanges of the imprinting block.

Claim 10

An imprinting cylinder as described in claim 8 in which the means for holding the tapered hot metal cast type slugs against an inner wall of an upward extending flange of the imprinting block and for preventing lateral movement of the tapered hot metal cast type slugs between the upward extending flanges of the imprinting block prior to fixing the clips to the upward extending flanges of the imprinting block includes at least one wedge placed between the tapered hot metal cast type slugs and the upward extending flanges of the imprinting block

Claim 11

An imprinting cylinder as described in claim 8 in which the means for holding the tapered hot metal cast type slugs against an inner wall of an upward extending flange of the imprinting block and for preventing lateral movement of the tapered hot metal cast type slugs between the upward extending flanges of the imprinting block prior to fixing the clips to the upward extending flanges of the imprinting block includes screw means extending through at least one upward extending flange of the imprinting block said screw means being adjustable to exert pressure against the side of the tapered hot metal cast type slug against which it abuts.

Claim 12

An imprinting cylinder including at least one removable imprinting block and structure defining at least one cavity in the imprinting cylinder in which each removable imprinting block is adapted to slide into a cavity in the imprinting cylinder and means for locking each imprinting block into printing position within its associated imprinting cylinder cavity in which the structure defining each cavity includes an opening for receipt of an imprinting block, an end wall, a flat base, one vertical side wall, and one slanted side wall and in which each imprinting block has a vertical side wall and a slanted side wall which mates with the slanted side wall of the imprinting cylinder and in which the means for locking each imprinting block into printing position within its associated imprinting cylinder cavity includes a locking arm screw mounted on the vertical side wall of the imprinting cylinder cavity to effect a pressure fit against the vertical side wall of the imprinting block as it is unscrewed from the vertical side wall of the imprinting cylinder cavity.

Claim 13

An imprinting cylinder including at least one removable imprinting block and structure defining at least one cavity in the imprinting cylinder in which each removable imprinting block is adapted to slide into a cavity in the imprinting cylinder and means for locking each imprinting block into printing position within its associated imprinting cylinder cavity in which the structure defining each cavity includes an opening for receipt of an imprinting block, an end wall, a flat base, one vertical side wall, and one slanted side wall and in which each imprinting block has a vertical side wall and a slanted side wall which mates with the slanted side wall of the imprinting cylinder and in which the means for locking each imprinting block into printing position within its associated imprinting cylinder cavity includes a locking arm screw mounted on the vertical side wall of the imprinting cylinder cavity to effect a pressure fit against the vertical side wall of the imprinting block as it is unscrewed from the vertical side wall of the imprinting cylinder cavity.

Claim 14

An imprinting cylinder as described in claim 11 including means for retaining the locking arm in locked position.

Claim 15

An imprinting cylinder as described in claim 12 in which the means for retaining the locking arm in locked position includes structure defining a hole in the handle of the locking arm and spring loaded pin means extending from the vertical side wall of the imprinting cylinder cavity for coacting with the hole in the handle of the locking arm.