US3813093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for inserting bookmarks into books
Assignee: RAHDENER MASCHINENFAB KOLBUS A
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Filing: 1972-02-01
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Granted: 1974-05-28
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Expires: 1992-02-01
Abstract
Abstract This device for inserting bookmarks into books travelling on a conveyor comprising spaced transverse lugs for driving the books separately is equipped with a blade for opening each book, which is disposed on the path of the travelling books, and, downstream of said blade, a channel delivering ribbon from a supply spool and a cutter disposed also downstream of said blade for severing each bookmark from the ribbon; means are provided in the form of spring-loaded clamps for picking up and pulling the ribbon in synchronism with the book conveyor, said clamps co-acting with cam means disposed on the one hand at the outlet of said channel and on the other hand at a point farther downstream, for opening and reclosing said clamps on the ribbon and release the bookmark in the book after it has been severed from the ribbon, respectively.
Inventors
- 👤 J Taupin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:28
CPC Classifications
B; B42; B42C; B42C9/00; B42C9/02; B42C9/025
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
173 words
A bookmark inserting device for inserting bookmarks into books, the device comprising: a book conveyor for transporting books with the backs underneath and at spaced intervals; means for driving said book conveyor; a book opening blade disposed in the path of said books; a channel disposed downstream of said opening blade for guiding bookmark ribbon to the device and into the opened book from a source of ribbon; spring-loaded clamp means driven in synchronism with said conveyor for clamping and drawing ribbon from said source; cam means disposed downstream of said channel for opening said clamp means and for subsequently reclosing the same to clamp the ribbon guided through said channel; cutter means disposed downstream of said opening blade and said channel for cutting said bookmark ribbon from the source of ribbon and to the desired length of said bookmark while the ribbon is held by said clamp means; and means for opening said clamp means, thereby releasing the bookmark in the book, after said bookmark is severed from said source of ribbon.
Claim 2
Dependent Claim
173 words
A bookmark inserting device for inserting bookmarks into books, the device comprising: a book conveyor for transporting books with the backs underneath and at spaced intervals; means for driving said book conveyor; a book opening blade disposed in the path of said books; a channel disposed downstream of said opening blade for guiding bookmark ribbon to the device and into the opened book from a source of ribbon; spring-loaded clamp means driven in synchronism with said conveyor for clamping and drawing ribbon from said source; cam means disposed downstream of said channel for opening said clamp means and for subsequently reclosing the same to clamp the ribbon guided through said channel; cutter means disposed downstream of said opening blade and said channel for cutting said bookmark ribbon from the source of ribbon and to the desired length of said bookmark while the ribbon is held by said clamp means; and means for opening said clamp means, thereby releasing the bookmark in the book, after said bookmark is severed from said source of ribbon.
Claim 3
Dependent Claim
31 words
Bookmark inserting device according to claim 1, and further comprising an auxiliary conveyor driven concomitantly with said book conveyor; and means for mounting said spring-loaded clamp means on said auxiliary conveyor.
Claim 4
Dependent Claim
105 words
Bookmark inserting device according to claim 2, and further comprising gluing means for gluing one end of the severed bookmark to the book back; wherein said auxiliary conveyor is of the type comprising chain means supporting said clamps and passing over sprockets; And wherein said cam means for controlling the release of said bookmark are located at the beginning of the downward arc of the auxiliary chains over the corresponding end sprockets, so that said clamp means carry along the bookmark portion projecting from the book during their downward travel so as to curve said bookmark portion downwards before its engagement by said gluing means.
Claim 5
Dependent Claim
63 words
Device according to claim 1, and further comprising sensing means adapted to detect the presence of a book on said book conveyor for preventing the picking up of ribbon by said clamp means when no book is present at the outlet end of said channel; and wherein said cam means include cams adapted to be shifted under the control of said sensing means.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |