US3687303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removal of a certain number of plates from a stack of plates
Assignee: Statomat Globe Maschinenfabrik GmbH
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Filing: 1971-04-12
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Granted: 1972-08-29
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Expires: 1991-04-12
Abstract
Abstract A device for removing a desired number of plates from a stack of plates such as a stack of punched plates for making stators for electric motors. The stack is held in compression and a knife member is brought into contact with the side of a certain plate in the stack thus locating a desired number of plates between the knife and one end of the stack. Clamping means are provided adjacent the knife member to engage the stack such that when the compressive force holding the entire stack is removed, the portion of the stack between the clamping means and the one stack end is held in compression by the clamping means. In this manner, the desired number of plates are held stationary relative to the knife member and thus do not move relative to the knife member when the compressive force is removed. After separation of the other portion of the stack, the knife member and clamping means are disengaged from the portion of the stack containing the desired number of plates and a stack containing the desired number of plates is removed from the device.
Inventors
- 👤 Willi Kramer
- 👤 Willi Muskulus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:29
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/32; B65H3/322; B21; B21D; B21D43/00; B21D43/20; B21D43/24
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
224 words
Apparatus for removal of a desired number of sheets from a stack of sheets comprising: a first sheet holding member; a second sheet holding member spaced from said first sheet holding member to accomodate a stack of said sheets between said holding members; means for urging said holding members together to compress a stack of sheets positioned between said holding members; a knife member located adjacent the side of said stack of sheets intermediate said holding members, said knife member being moveable between a first position spaced from the side of said stack of sheets and a second position in contact with the side of a certain sheet in said stack of sheets; means to move one of said holding members away from the other holding member; clamping means for engaging the side of said stack of sheets said clamping means being located adjacent said knife member; and means for engaging said clamping means with the side of said stack of sheets whereby, upon movement of one of said holding members away from the other holding member, the portion of said stack of sheets between said clamping means and said other holding member is held therebetween under compression; and means for removing said portion of said stack of sheets from said apparatus to provide a desired number of sheets from said stack of sheets.
Claim 2
Dependent Claim
224 words
Apparatus for removal of a desired number of sheets from a stack of sheets comprising: a first sheet holding member; a second sheet holding member spaced from said first sheet holding member to accomodate a stack of said sheets between said holding members; means for urging said holding members together to compress a stack of sheets positioned between said holding members; a knife member located adjacent the side of said stack of sheets intermediate said holding members, said knife member being moveable between a first position spaced from the side of said stack of sheets and a second position in contact with the side of a certain sheet in said stack of sheets; means to move one of said holding members away from the other holding member; clamping means for engaging the side of said stack of sheets said clamping means being located adjacent said knife member; and means for engaging said clamping means with the side of said stack of sheets whereby, upon movement of one of said holding members away from the other holding member, the portion of said stack of sheets between said clamping means and said other holding member is held therebetween under compression; and means for removing said portion of said stack of sheets from said apparatus to provide a desired number of sheets from said stack of sheets.
Claim 3
Dependent Claim
98 words
Apparatus according to claim 1 further including a further knife member adjacent said side of said stack of sheets, said further knife member being moveable between a first position spaced from the side of said stack of sheets and a second position in engagement with a side of a further sheet in said stack of sheets, said further sheet being adjacent said certain sheet and located on the side thereof towards said one holding member; said apparatus further including means for urging said further knife member in a direction to separate said further sheet from said certain sheet.
Claim 4
Dependent Claim
38 words
Apparatus according to claim 1 wherein said knife member is pivotally mounted about an axis directed transversely to the longitudinal axis of said stack of sheets, said knife member slanting in a direction towards said other holding member.
Claim 5
Dependent Claim
29 words
Apparatus according to claim 3 wherein said knife member is held in said slanting direction by stop means and a spring member urging said knife member against said stop.
Claim 6
Dependent Claim
19 words
Apparatus according to claim 1 including means to urge said knife member against the side of said certain sheet.
Claim 7
Dependent Claim
40 words
Apparatus according to claim 2 wherein said further knife member is pivotally mounted about an axis directed transversely to the longitudinal axis of said stack of sheets, said further knife member slanting in a direction towards said one holding member.
Claim 8
Dependent Claim
80 words
Apparatus according to claim 6 wherein one of said knife members includes a channel through which the other of said knife members passes, said apparatus further including means urging one of said knife members against the other knife member and further urging said other knife member against a stop whereby the sheeT-engaging edges of said knife members are positioned adjacent said stack of sheets and spaced apart about one sheet thickness in a direction longitudinally of the stack of sheets.
Claim 9
Dependent Claim
15 words
Apparatus according to claim 1 wherein said knife member is mounted on said clamping means.
Claim 10
Dependent Claim
17 words
Apparatus according to claim 7 wherein both of said knife members are mounted on said clamping means.
References Cited (Backward Citations)
US2701736A
Cited
US2875909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |