Patent US3595183A successfully refreshed from Google Patents.
US3595183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Book sewing machine and method
Assignee: Boeing North American Inc
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Filing: 1968-07-24
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Granted: 1971-07-27
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Expires: 1988-07-24
Abstract
Abstract A cyclically operable book sewing or stitching machine and method wherein book signatures are successively stitched to provide spaced parallel rows of single or tail stitches and looped or chain stitches extending through the folds of each signature and connecting successive signatures together. Means is provided for interrupting the chain stitch at the end of the sewing operation upon a book, the operation of such means being initiated by the same means which operate a means for severing the tail thread, so that the stitchings of successive books are entirely disconnected from each other.
Inventors
- 👤 William W Stoothoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:41
CPC Classifications
B; B42; B42B; B42B2/00; B42B2/02
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
82 words
A book-stitching machine comprising a sewing support upon which successive book signatures are placed in stitching position and from which stitched signatures are discharged to form a connected stack, means for forming from a continuous thread a chain stitch comprising a row of linked thread loops connecting successive signatures together to form books each comprising a plurality of stitched signatures, and means for interrupting the row of linked thread loops between said books by preventing the linking of successively formed thread loops.
Claim 2
Dependent Claim
82 words
A book-stitching machine comprising a sewing support upon which successive book signatures are placed in stitching position and from which stitched signatures are discharged to form a connected stack, means for forming from a continuous thread a chain stitch comprising a row of linked thread loops connecting successive signatures together to form books each comprising a plurality of stitched signatures, and means for interrupting the row of linked thread loops between said books by preventing the linking of successively formed thread loops.
Claim 3
Dependent Claim
45 words
A book-stitching machine as defined in claim 1 wherein said last-named means comprises means for deflecting the thread loop formed during the stitching of the last signature of a book to thereby prevent the linking thereof with the thread loop formed by the next stitch.
Claim 4
Dependent Claim
20 words
A book-stitching machine as defined in claim 1 wherein said row of linked loops is interrupted without parting the thread.
Claim 5
Dependent Claim
102 words
A book-stitching machine comprising a sewing support upon which successive book signatures are placed in stitching position and from which stitched signatures are discharged to form a connected stack, means for forming a chain stitch connecting successive stitched signatures together, means for interrupting the chain stitch after the stitching of the last signature of each book, the signatures of each book being connected by said chain stitch at a first zone and by a single tail thread at a second zone spaced from the first zone, and means for severing the tail thread between successive books after interrupting the chain stitch therebetween.
Claim 6
Dependent Claim
102 words
A book-stitching machine comprising a sewing support upon which successive book signatures are placed in stitching position and from which stitched signatures are discharged to form a connected stack, means for forming a chain stitch connecting successive stitched signatures together, means for interrupting the chain stitch after the stitching of the last signature of each book, the signatures of each book being connected by said chain stitch at a first zone and by a single tail thread at a second zone spaced from the first zone, and means for severing the tail thread between successive books after interrupting the chain stitch therebetween.
Claim 7
Dependent Claim
31 words
A book-stitching machine according to claim 4, comprising a common means for initiating the operation of the means for severing the tail thread and the means for interrupting the chain stitch.
Claim 8
Dependent Claim
110 words
A book-stitching machine comprising a sewing support upon which successive book signatures are placed in stitching position and from which stitched signatures are discharged to form a connected stack, means for forming a chain stitch comprising a row of interconnected thread loops connecting successive stitched signatures together, and means for interrupting the chain stitch after the stitching of the last signature of each book comprising means for deflecting the last loop of the chain stitch of a book, after it has passed through the last signature of the said book, out of the path of the next loop which is to pass through the first signature of the next book.
Claim 9
Dependent Claim
110 words
A book-stitching machine comprising a sewing support upon which successive book signatures are placed in stitching position and from which stitched signatures are discharged to form a connected stack, means for forming a chain stitch comprising a row of interconnected thread loops connecting successive stitched signatures together, and means for interrupting the chain stitch after the stitching of the last signature of each book comprising means for deflecting the last loop of the chain stitch of a book, after it has passed through the last signature of the said book, out of the path of the next loop which is to pass through the first signature of the next book.
Claim 10
Dependent Claim
144 words
A book-stitching machine comprising means for feeding successive folded book signatures to a stitching position, means for holding the signature at the stitching position suspended from its fold, means for passing a needle carrying the bight of a doubled thread in one direction through the fold at a first zone, means for carrying the resulting thread loop along the fold and for pulling it, in the reverse direction from the introduction of the doubled thread, through the fold of the signature at a second zone spaced from the first zone and through the previously formed loop extending through the fold of the previously stitched signature whereby to form a chain stitch connecting successive signatures to form a book, and means for interrupting the chain stitch between adjacent books while forming the next thread loop after the stitching of the last signature of a book.
Claim 11
Dependent Claim
144 words
A book-stitching machine comprising means for feeding successive folded book signatures to a stitching position, means for holding the signature at the stitching position suspended from its fold, means for passing a needle carrying the bight of a doubled thread in one direction through the fold at a first zone, means for carrying the resulting thread loop along the fold and for pulling it, in the reverse direction from the introduction of the doubled thread, through the fold of the signature at a second zone spaced from the first zone and through the previously formed loop extending through the fold of the previously stitched signature whereby to form a chain stitch connecting successive signatures to form a book, and means for interrupting the chain stitch between adjacent books while forming the next thread loop after the stitching of the last signature of a book.
Claim 12
Dependent Claim
52 words
A book-stitching machine according to claim 7, wherein the signatures of a book are connected by said chain stitch at said second zone and by a single tAil thread at the first zone, and comprising means for severing the tail thread after the stitching of the first signature of the next book.
Claim 13
Dependent Claim
32 words
A book stitching machine according to claim 8, comprising a common means for initiating the operation of the means for severing the tail thread and the means for interrupting the chain stitch.
Claim 14
Dependent Claim
61 words
A book-stitching machine according to claim 7, wherein the means for interrupting the chain stitch comprises means for deflecting the loop extending through the fold at the second zone of the last signature of the book out of the path of the loop which is pulled through the fold at the second zone of the first signature of the next book.
Claim 15
Dependent Claim
121 words
A book-stitching machine according to claim 7, wherein the means for pulling the resulting loop in the reverse direction through the fold of the signature at a second zone and through the previously formed loop comprises a hook reciprocable to pull the resulting loop through the fold, said hook having a shank upon which the previously formed loop freed from the hook normally remains during the next cycle of reciprocation of the hook, whereby the resulting loop is pulled through the previously formed loop, and said means for interrupting the chain stitch comprises means for selectively freeing a formed loop from the hook and its shank before the next loop is pulled through the fold of a signature by the hook.
Claim 16
Dependent Claim
61 words
A book-stitching machine according to claim 11, wherein the means for interrupting the chain stitch after the stitching of the last signature of a book comprises means for deflecting the freed loop out of the path of the hook so that the hook pulls the next loop through the fold of the next signature free from engagement with such deflected loop.
Claim 17
Dependent Claim
111 words
A book-stitching machine according to claim 12, comprising means for reciprocating the hook during the stitching of the signatures of a book together between a first terminal position on the first side of the fold and a second terminal position on the second side of the fold, and means for driving the hook, after the stitching out of the last signature of a book, to a third terminal position further displaced from the fold on the first side thereof than the first terminal position of the hook whereby the last loop of the chain stitch of a book is longer than the other loops of the chain stitch of the book.
Claim 18
Dependent Claim
158 words
A book-stitching machine according to claim 13, wherein the hook faces in a first direction when it picks up the thread beyond the second side of the fold and while it pulls the loop of thread through the fold as it moves to its first terminal position, and comprising means for turning the hook so that it faces in a second, opposite direction after it has thereafter moved somewhat from its first terminal position toward its second terminal position, whereby to free the resulting loop from the hook while retaining it on the shank of the hook, and for thereafter turning the hook so that it faces in said first direction when it is in its second terminal position, the hook remaining turned to face in said first direction when it is moved into its first terminal position and when it is moved further into its third terminal position at the end of the sewing of a book.
Claim 19
Dependent Claim
151 words
A book-stitching machine according to claim 14, comprising means for moving the hook slightly from its third terminal position toward its first terminal position, whereby the bight of the longer loop is freed from the pull of the hook, and means for moving the loop deflecting means in the said first direction on the first side of the fold between the free end of the hook and the fold in the signature while the hook faces in said first direction so that the said longer loop is engaged by said deflecting means and freed from the hook and for retaining the loop deflecting means in its loop deflecting position during the subsequent strokes of the hook into and through the fold of the signature and then outwardly from the fold, said loop-deflecting means beinG of such shape that when it is in its loop-deflecting position the hook travels freely past it.
Claim 20
Independent Claim
96 words
A method of stitching books which comprises holding successive book signatures in a stitching position, forming with a continuous thread a loop stitch in each of the signatures and normally linking together the bight ends of the resulting thread loops of successive stitches to form a chain stitch connecting successive signatures together, discharging stitched signatures from the stitching position to form a stack of books each comprising a plurality of stitched signatures, and intermittently interrupting the chain stitch by failing to link the thread loops of the stitches formed in the adjacent signatures of adjacent books.
Claim 21
Independent Claim
96 words
A method of stitching books which comprises holding successive book signatures in a stitching position, forming with a continuous thread a loop stitch in each of the signatures and normally linking together the bight ends of the resulting thread loops of successive stitches to form a chain stitch connecting successive signatures together, discharging stitched signatures from the stitching position to form a stack of books each comprising a plurality of stitched signatures, and intermittently interrupting the chain stitch by failing to link the thread loops of the stitches formed in the adjacent signatures of adjacent books.
Claim 22
Independent Claim
155 words
A method of stitching books which comprises holding successive folded book signatures in a stitching position, passing the bight of a doubled thread in one direction through the fold in the signature in the stitching position at a first zone, carrying the resulting thread loop along the fold, pulling the loop in the reverse direction through the fold at a second zone spaced from the first zone and through the previously formed loop extending through the fold of the previously stitched signature whereby to form a chain stitch connecting the signatures at said second zone and a single tail thread connecting the signatures at said first zone, discharging stitched signatures from the stitching position to form a stack of books each comprising a plurality of stitched signatures, interrupting the chain stitch after the stitching of the last signature of a book, and thereafter severing the tail thread connecting said last signature to the next book.
Claim 23
Independent Claim
155 words
A method of stitching books which comprises holding successive folded book signatures in a stitching position, passing the bight of a doubled thread in one direction through the fold in the signature in the stitching position at a first zone, carrying the resulting thread loop along the fold, pulling the loop in the reverse direction through the fold at a second zone spaced from the first zone and through the previously formed loop extending through the fold of the previously stitched signature whereby to form a chain stitch connecting the signatures at said second zone and a single tail thread connecting the signatures at said first zone, discharging stitched signatures from the stitching position to form a stack of books each comprising a plurality of stitched signatures, interrupting the chain stitch after the stitching of the last signature of a book, and thereafter severing the tail thread connecting said last signature to the next book.
Claim 24
Dependent Claim
50 words
A method according to claim 17, comprising deflecting the loop which is pulled through the fold of the last signature of a book at the second zone out of the path of the next loop which is pulled through the first signature of the next book at the second zone.
Claim 25
Dependent Claim
57 words
A method according to claim 18, comprising pulling the bight of said thread loop which passes through the fold of said last signature, before the deflection of such loop, further from the fold of the last signature of the book than the bights of the chain stitch loops which pass through the other signatures of the book.
Claim 26
Dependent Claim
71 words
A method according to claim 19, wherein the thread loop is pulled in the reverse direction through the fold by a hook which pulls the bight of the loop into a first terminal position in the sewing of the first and the intermediate signatures of a book and which pulls the bight of the loop into a further extended terminal position in the sewing of the last signature of a book.
Claim 27
Dependent Claim
126 words
A method according to claim 20, wherein the hook has a shank, and comprising disposing the hook so that it is in a first angular position, facing in a first direction, to engage the loop before pulling it through the fold in the signature, retaining the hook in such first angular position as it pulls the bight of the loop into its first terminal position, turning the hook substantially 180* after the hook has moved in its subsequent stroke toward the fold of the signature to free the loop from the hook and to permit it to move along the shank of the hook, and again turning the hook to return it to its first angular position prior to its engagement with the next thread loop.
Claim 28
Dependent Claim
75 words
A method according to claim 20, comprising retaining the hook in its first angular position as the hook pulls the bight of the loop into its further extended terminal position, returning the hook from its further terminal position toward said first terminal position to free the extended loop from the hook, and deflecting the extended loop laterally away from the hook by passing a loop deflector between the hook and the fold of the signature.
Claim 29
Independent Claim
100 words
A method of stitching books which comprises holding successive book signatures in a stitching position, forming with a continuous thread a loop stitch in each of the signatures and normally linking Together the bight ends of the resulting thread loops of successive stitches to form a chain stitch connecting successive signatures together, discharging stitched signatures from the stitching position to form a stack of books each comprising a plurality of stitched signatures, and selectively deflecting the thread loop of one stitch before forming the thread loop of the next stitch to prevent linking thereof and thereby interrupt the chain stitch.
Claim 30
Independent Claim
100 words
A method of stitching books which comprises holding successive book signatures in a stitching position, forming with a continuous thread a loop stitch in each of the signatures and normally linking Together the bight ends of the resulting thread loops of successive stitches to form a chain stitch connecting successive signatures together, discharging stitched signatures from the stitching position to form a stack of books each comprising a plurality of stitched signatures, and selectively deflecting the thread loop of one stitch before forming the thread loop of the next stitch to prevent linking thereof and thereby interrupt the chain stitch.
Claim 31
Dependent Claim
20 words
A method according to claim 23 comprising subsequently severing the thread at the juncture of said one and next stitches.
Claim 32
Dependent Claim
146 words
A book-stitching machine comprising a sewing saddle upon which folded signatures are successively placed and from which stitched signatures are discharged to form a stack of signatures, means for forming from a continuous thread stitches connecting successive signatures, each said stitch comprising tail thread portions and a thread loop extending through the fold of a signature at spaced locations and two runs of thread in the bight of said fold connecting said tail thread portions to said thread loop, said stitch forming means including means normally operative to pull each thread loop as it is being formed through the previously formed thread loop of a preceding stitch whereby the loops of successive stitches are linked together, and means for selectively rendering said last-named means inoperative to so pull the loop being formed thereby through the previously formed loop to thereby interrupt the linking of the loops.
Claim 33
Dependent Claim
146 words
A book-stitching machine comprising a sewing saddle upon which folded signatures are successively placed and from which stitched signatures are discharged to form a stack of signatures, means for forming from a continuous thread stitches connecting successive signatures, each said stitch comprising tail thread portions and a thread loop extending through the fold of a signature at spaced locations and two runs of thread in the bight of said fold connecting said tail thread portions to said thread loop, said stitch forming means including means normally operative to pull each thread loop as it is being formed through the previously formed thread loop of a preceding stitch whereby the loops of successive stitches are linked together, and means for selectively rendering said last-named means inoperative to so pull the loop being formed thereby through the previously formed loop to thereby interrupt the linking of the loops.
Claim 34
Dependent Claim
80 words
A book-stitching machine comprising a sewing saddle upon which folded signatures are successively placed and from which stitched signatures are discharged to form a stack of signatures, means for forming from a continuous thread stitches connecting successive signatures, each said stitch comprising a thread loop extending from the fold of a signature and said loops of successive stitches being normally linked together to form a continuous linkage, and means for selectively effecting interruption of said linkage without parting the thread.
Claim 35
Dependent Claim
80 words
A book-stitching machine comprising a sewing saddle upon which folded signatures are successively placed and from which stitched signatures are discharged to form a stack of signatures, means for forming from a continuous thread stitches connecting successive signatures, each said stitch comprising a thread loop extending from the fold of a signature and said loops of successive stitches being normally linked together to form a continuous linkage, and means for selectively effecting interruption of said linkage without parting the thread.
Claim 36
Dependent Claim
29 words
A book-stitching machine as defined in claim 26 comprising means for rendering said last-named means operative to effect such interruption of said linkage between successive groups of said signatures.
Claim 37
Dependent Claim
35 words
A book-stitching machine as defined in claim 27 wherein said stitches have tail thread portions connecting successive signatures and which further comprises means for severing said tail thread portions between selected groups of said signatures.
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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) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |