Patent US3630518A successfully refreshed from Google Patents.
US3630518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet-feeding devices
Assignee: Parnall and Sons Ltd
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Filing: 1969-06-16
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Granted: 1971-12-28
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Expires: 1989-06-16
Abstract
Abstract A sheet-feeding device comprising a feed path between a pair of superimposed plates and an intervening aligned surface wherein the sheets are transported along the feed path and towards aligning surface by at least one row of balls wherein the latter are rotated by a common driving belt, the axis of movement of the latter being preferably angularly adjustable relevant to the aligning surface.
Inventors
- 👤 Leslie John Street
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:22
CPC Classifications
B; B65; B65H; B65H9/00; B65H9/16; B65H9/163; B65H2301/00; B65H2301/30; B65H2301/36; B65H2301/361; B65H2301/3613; B65H2301/36132
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
124 words
A sheet-feeding device comprising upper and lower vertically spaced substantially parallel plates defining a longitudinal sheet feed path between them, means defining a sheet aligning surface extending between said plates and along one edge of said path, feeding means serving to transport the sheets along the feed path while urging them toward sliding engagement with said sheet alignment surface comprising at least one row of spherical universally rotatably mounted sheet driving members disposed along said path, one of said plates being formed with a plurality of substantially circular apertures and said sheet driving memberS projecting through said apertures into the feed path where they are in driving contact with the sheets being transported along said path, and means for driving all of said members.
Claim 2
Dependent Claim
124 words
A sheet-feeding device comprising upper and lower vertically spaced substantially parallel plates defining a longitudinal sheet feed path between them, means defining a sheet aligning surface extending between said plates and along one edge of said path, feeding means serving to transport the sheets along the feed path while urging them toward sliding engagement with said sheet alignment surface comprising at least one row of spherical universally rotatably mounted sheet driving members disposed along said path, one of said plates being formed with a plurality of substantially circular apertures and said sheet driving memberS projecting through said apertures into the feed path where they are in driving contact with the sheets being transported along said path, and means for driving all of said members.
Claim 3
Dependent Claim
29 words
A device according to claim 1, wherein the means for driving the driving members comprises a driven belt directly engageable with and common to all of the driving members.
Claim 4
Dependent Claim
11 words
A device according to claim 2, wherein the belt is endless.
Claim 5
Dependent Claim
23 words
A device according to claim 2, wherein the longitudinal axis of movement of the belt is angularly adjustable relative to the aligning surface.
Claim 6
Dependent Claim
31 words
A device according to claim 2, wherein the belt is carried by pulleys whose axes of rotation are angularly adjustable relative to the aligning surface to provide the belt axis adjustment.
Claim 7
Dependent Claim
43 words
A device according to claim 2, wherein each driving member is mounted for rotation in different directions so that the peripheral part of the member surface serving drivably to engage the sheets is variable with variation of the angle of the belt axis.
Claim 8
Dependent Claim
35 words
A device according to claim 2, wherein the driving members project upwardly into the feed path through apertures in the lower plate, and are rotatably driven by the belt which is disposed beneath the members.
Claim 9
Dependent Claim
32 words
A device according to claim 1, wherein at least a part of the row of driving members converges towards the aligning surface in the direction of transit of sheets through the device.
Claim 10
Dependent Claim
64 words
A device according to claim 8, wherein the row of driving members has two mutually parallel limbs at opposite ends of the feed path, said limbs being substantially parallel to the feed path and to said sheet aligning surface, and said converging part is a connecting limb disposed between said parallel limbs, said connecting limb extending at an angle to said sheet aligning surface.
Claim 11
Dependent Claim
57 words
A sheet-feeding device as defined in claim 9, wherein the upper plate is formed with apertures registered with the lower plate apertures, and rotatable idler balls are mounted on said upper plate to project through the apertures thereof into the feed path, so that said sheets are transported between registered drive and idler balls along said path.
Claim 12
Dependent Claim
23 words
A device according to claim 1, including spherical idler members rotatably mounted to urge sheets in transit into engagement with the driving members.
Claim 13
Dependent Claim
20 words
A device according to claim 11, wherein the idler members are mounted directly above respective driving members in register therewith.
Claim 14
Dependent Claim
25 words
A device according to claim 11, wherein the idler members project through apertures in an upper plate defining an upper side of the feed path.
Claim 15
Dependent Claim
70 words
A sheet feeding device as defined in claim 1, wherein apertures are formed in the lower plate and said spherical members are balls each rotatably mounted in sockets below said path so as to be rotatable in all directions in said sockets, and said balls extend with minimum clearance through said lower plate apertures and said driving means is a belt contacting all of the balls below said lower plate.
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |