Printing press scraping blade
AssigneeGoss Graphic Systems, Inc.
InventorJohn W. Manser
Life of this patent
Estimating the term…
Abstract
A printing press ink scraping blade is disclosed. The ink scraping blade is of a unitary construction and includes a working end as well as a mounting end. The working end is preferably substantially thicker than the mounting end to provide substantially more material at the working end. As the scraping blade engages a scraping roller of a printing press, the blade is exposed to abrasive action and the additional material provided increases the serviceable life of the blade. To ensure that the blade maintains sufficient flexibility and deflection characteristics, the remainder or mounting end of the blade, is of a substantially reduced thickness. The blade may be manufactured from spring steel to further enhance flexibility.
Claims28
A printing press ink scraping blade, comprising:
- a base end adapted to be mounted to a printing press;
- and
- a working end extending from the base end, the working end including a scraping tip for engagement with a scraping roller, the working end being unitary with the base end and having a thickness greater than the base end, the printing press ink scraping blade being manufactured from only one unitary piece of material, the scraping tip extending from the working end in a direction substantially parallel to a longitudinal axis of the blade.
A printing press ink scraping blade, comprising:
- a base end adapted to be bound to a printing press;
- a working end extending from the base end, the working end including a scraping tip for engagement with a scraping roller, the working end being unitary with the base end and having a thickness greater than the base end, the working end having a thickness of β, and the base end has a thickness of γ, the ration of β to γ being approximately 2.0, wherein β is 0.02 inches, and γ is 0.012 inches.
A printing press ink scraping blade, comprising:
- a base end adapted to be mounted to a printing press;
- and
- a working end extending from the base end, including a scraping tip for engagement with a scraping roller, the working end being unitary with the base end and having a thickness greater than the base end, the working end having a width Δ and the base end having a width Σ, the ratio of Δ to Σ being approximately 0.104, wherein Σ is approximately 0.118 inches and Δ is approximately 1.132 inches.
A method of fabricating a printing press ink scraping blade, comprising:
- forming a blank from deflectable material;
- creating a beveled scraping tip in a working end of the blank;
- and
- removing material from a base end of the material thereby generating a unitary scraping blade having a thicker working end than base end, the printing press ink scraping blade being manufactured from only one unitary piece of material, the scraping tip extending from the working end in a direction substantially parallel to a longitudinal axis of the blade.
A method, of fabricating a printing press ink scraping blade, comprising:
- forming a blank from deflectable materials;
- creating a bevel in a working end of the blank;
- removing material from a base end of the material thereby generating a unitary scraping blade having a thicker working end than base end, wherein the blank has an initial thickness of approximately 0.025 inches, and the removing step reduces the thickness to approximately 0.012 inches.
A printing press, comprising:
- a frame adapted to carry a web of paper through the printing press;
- at least one cylinder adapted to imprint ink on the web;
- an ink train adapted to carry ink to the at least one cylinder, the ink train including a scraping roller;
- and
- a scraping blade in contact with the scraping roller, the scraping blade having a working end a base end and a scraping tip, the working end being integral with, and thicker than, the base end, the scraping blade being manufactured from only one unitary piece of material, the scraping tip extending from the working end in a direction substantially parallel to a longitudinal axis of the blade.
An ink scraping blade, comprising:
- a back edge;
- a front edge, the front edge being beveled and forming a scraping tip;
- first and second side edges;
- a bottom surface, the bottom surface being substantially planar;
- and
- a top surface, the top surface having a working end portion proximate the front edge and a mounting end portion proximate the back edge, the first and second side edges being thicker adjacent the working end portion than adjacent the mounting end portion, the ink scraping blade being manufactured from a unitary piece of material, the ink scraping blade being manufacturing from only one unitary piece of material, the scraping tip extending from the working end in a direction substantially parallel to a longitudinal axis of the blade.
Dependencies are inferred from the claim text.