Books – strips – and leaves – Book – element thereof – or accessory therefor
Patent
1985-07-02
1987-05-26
Bell, Paul A.
Books, strips, and leaves
Book, element thereof, or accessory therefor
281 21R, 281 38, 156366, 412 17, B42D 500, B42D 1500, B32B 3100, B42C 100
Patent
active
046679839
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
The present invention relates to a paper block or pad comprising a folder having two covers joined to each other by a spine, on the inside of which a thermosetting binder in the form of a strip is attached, and also comprising a plurality of paper sheets, the edges of which are joined to the inside of the spine via the strip. The invention also relates to a method of manufacturing such a block or pad.
2. Background Art
Covers for a block or pad of the kind described above, and a method of manufacturing such folders are already known from such as the U.S. Pat. No. 4,367,061. The folders are often of high quality and usually comprise a transparent front cover with a back cover and spine of cardboard. The folders are used as covers for documents such as tenders, surveys and advertising material, and for this reason they must have a pleasing appearance and good strength properties. For these reasons the folders will be comparatively expensive to manufacture, and it is therefore not natural to use them for binding a plurality of paper sheets of poorer quality. Neither is it suitable to use such folders for bindning in sheets which are to be removed therefrom, since removal must take place by tearing out the sheet, since there is no other way of removing it from the inside of the spine. Such tearing results in that the sheet itself becomes torn in undesired places or is given a remaining very uneven torn edge, which very often results in essential information on the sheet being lost.
So-called spiral blocks or pads are also known, which have a spiral as retaining means for a plurality of paper sheets, these sheets being provided with weakening lines parallel, and adjacent to the spiral. These blocks or pads are suitable for such uses as note, writing or sketch blocks or pads and their sheets are intended to be removed by tearing off along the weakening lines. Removal often means that the sheets are torn out at their connection to the spiral.
Blocks and pads are also known having a glue ribbon for keeping the sheets together instead of the spiral. These are also used as note pads or the like, and their sheets are intended to be removed along weakening lines parallel to the glue ribbon. So that tearing off does not take place at the ribbon, it is necessary that the weakening lines are situated at a relatively great distance from the bead, so that the user can hold the remaining strip-like part when the sheet shall be torn away from the remaining sheets, and this results in unnecessary waste of paper.
DISCLOSURE OF INVENTION
One object of the present invention is to surmount the disadvantages with previously known blocks or pads and the method of manufacturing them, and to provide and produce a block or pad comprising a high-quality folder in the spine of which sheets of paper are attached; at least some of these sheets being removable from the spine along a uniform tear-off edge without the sheet in question, adjacent sheets or the folder being damaged. This object is achieved by the invention having been given the distinguishing features disclosed in the claims.
DESCRIPTION OF FIGURES
FIG. 1 is a partially cut-away perspective view of a block or pad in accordance with the invention and
FIG. 2 is a perspective view of a folder included in the block or pad according to FIG. 1.
PREFERRED EMBODIMENT
A folder of the kind illustrated in FIG. 2 is the basis for manufacturing the block or pad illustrated in FIG. 1. The folder consists of two covers 1 and 2 and a spine 3 between them. The covers and spine are illustrated in FIG. 2 as being manufactured in one piece from cardboard or carton with crease lines 4 and 5 between the covers and spine. A thermosetting binder is attached to the inside of the spine 3 in the form of a strip 6. The strip 6, which is solid at room temperature, is attached to the spine 3 by the strip being heated so that it becomes viscous, when it is pressed against the inside of the spine.
The ready block or pad is illustrated in FIG. 1 and includes a folder c
REFERENCES:
patent: 576385 (1897-02-01), Valentine
patent: 1086978 (1914-02-01), Anderson
patent: 1733048 (1929-10-01), Beale
patent: 3159411 (1964-12-01), McKowen
patent: 3775867 (1973-12-01), Christenberry
patent: 3847718 (1974-11-01), Watson
patent: 4305605 (1981-12-01), Vine
patent: 4367061 (1983-01-01), Wiholm
patent: 4367116 (1983-01-01), Wiholm
patent: 4492306 (1985-01-01), Cooper et al.
patent: 4519629 (1985-05-01), Podosek
Bell Paul A.
Bind-O-Matic AB
Heyrana Sr. Paul M.
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