US3603584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crimping means for sheet feeding apparatus
Assignee: Individual
•
Filing: 1969-09-12
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Granted: 1971-09-07
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Expires: 1989-09-12
Abstract
Abstract A conveyor having a plurality of spaced-apart closed-looped belts, the upper sides of which carry sheets of paper from a printing device to a sheet-processing machine, is provided with a feed table disposed between the end of the conveyor and the sheet-processing machine. The feed table has a crimping surface upon which the leading edge of each sheet is bent downwardly by a predetermined amount. A pivotally mounted stop member responsive to the position of the leading edge of the sheet momentarily prevents movement of the sheet relative to the crimping surface while a bar member spaced above and parallel to the crimping surface moves to and from the crimping surface to engage the upper surface of the leading edge of the sheet to crimp the same about the contour defined by the crimping surface.
Inventors
- 👤 Joachim G Schmidtke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:42
CPC Classifications
B; B65; B65H; B65H5/00; B65H5/36
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
In combination with the device for feeding sheets to a sheetprocessing machine wherein a conveyor having a sheet supporting upper surface carries said sheets from one end to the other end of said conveyor, said sheet-processing machine being proximate said other end and having a surface thereon for receiving and carrying said sheet therethrough, that improvement which comprises: means disposed between said other end of said conveyor and said sheet-processing machine for crimping the leading edge of said sheet to bend it downwardly in the direction of said surface along which said sheet is carried through said sheet-processing machine.
Claim 2
Dependent Claim
99 words
In combination with the device for feeding sheets to a sheetprocessing machine wherein a conveyor having a sheet supporting upper surface carries said sheets from one end to the other end of said conveyor, said sheet-processing machine being proximate said other end and having a surface thereon for receiving and carrying said sheet therethrough, that improvement which comprises: means disposed between said other end of said conveyor and said sheet-processing machine for crimping the leading edge of said sheet to bend it downwardly in the direction of said surface along which said sheet is carried through said sheet-processing machine.
Claim 3
Dependent Claim
84 words
The improvement as defined in claim 1, wherein said crimping means comprises a feed table having a crimping surface at the end proximate said sheet-processing machine; means for momentarily maintaining the leading edge of said sheet in a predetermined position with respect to said crimping surface; and means disposed above the upper surface of said sheet and movable in timed relationship to the predetermined positioning of the said sheet-leading edge so as to crimp the same downwardly with respect to said sheet-processing machine surface.
Claim 4
Dependent Claim
51 words
The improvement as defined in claim 2, including a longitudinal bar spaced above and parallel to said crimping surface, said bar movable to and from said crimping surface to engage the upper surface of said sheet-leading edge, said bar moving in timed relationship to said predetermined positioning of said sheet-leading edge.
Claim 5
Dependent Claim
93 words
The improvement as defined in claim 3, including sensing means for determining the position of said sheet-leading edge; and a pivotally mounted stop member responsive to said sensing means for positioning one face thereof in the path of said sensing means for positioning one face thereof in the path of said sheet so as to momentarily stop the travel of said sheet along said conveyor at said predetermined position, said bar being movable to and away from said crimping surface to bend said leading edge downwardly during said momentary stopping of said sheet.
Claim 6
Dependent Claim
19 words
The improvement as defined in claim 4, wherein the engaging edge of said bar is of a resilient material.
Claim 7
Dependent Claim
15 words
The improvement as defined in claim 5, wherein said resilient engaging bar edge is rubber.
Claim 8
Dependent Claim
88 words
The improvement as defined in claim 5, wherein said conveyor is comprised of a plurality of elongated closed-looped belts, the upper side of which is adapted to carry said sheets; and means for rotating said belt so as to move said sheet to said feed table; a plurality of closely spaced apertures formed in said belt, and means for continuously drawing air through the aperture of said belt so as to provide a retention force to securely maintain said sheets on the upper surface of said conveyor belts.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |