Apparatus for applying a slip of marble paper onto the bound edge of piled sheets of paper

Abstract

Abstract Apparatus for applying a slip of marble paper onto the surface of the back or bound edge and adjacent areas of the opposite faces of a book or piled sheets of paper, comprising a pair of spaced, elongated guide members on which a slip of marble paper is supplied having one surface thereof coated with adhesive and turned upside; a pair of spaced gripping bars disposed above the guide members; a pair of spaced pressure rollers disposed below the guide members; and drive means for moving the gripping bars toward each other and at the same time downwardly toward said guide members and pressure rollers. The book or piled sheets of paper bound along one edge thereof is inserted between the gripping bars, with the back or bound edge thereof facing down, so that the surface of the back or bound edge contacts the central portion of the adhesive surface of the slip of marble paper. Then the gripping bars grip the book or piled sheets of paper and moves them downwardly as far as the lateral marginal portions of the slip of marble paper are bent by contact with the pressure rollers so as to be applied onto those portions of the opposite faces of the book or piled sheets of paper which are adjacent to the back or bound edge thereof to which the central portion of the slip of marble paper has been applied.

Inventors

• 👤 Yasuji Sugioka

Bibliographic Details