US3690475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for dividing stacks of paper sheets
Assignee: Hans Sickinger Co
•
Filing: 1971-01-20
•
Granted: 1972-09-12
•
Expires: 1991-01-20
Abstract
Abstract A mechanism for dividing stacks of paper sheets into counted groups. The stack is held in vertical guides above a carriage which carries longitudinally spaced reciprocating upper and lower platforms. As the stack drops from the upper to the lower platform a reference finger and a separating wedge approach one corner of the stack, the finger supporting the stack and the wedge entering the stack at a predetermined height above the finger. At this point the carriage begins its return movement and the upper platform enters the stack at the height of the wedge, both members then retracting. The counted group then drops between the platforms onto delivery bars.
Inventors
- 👤 Ernest Pfaffle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:36
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/32; B65H3/322; B65H33/00; B65H33/02; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/422; B65H2301/423; B65H2301/4232; B65H2301/42322
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
178 words
In a mechanism for dividing a stack of sheets into groups of predetermined count, a base, a carriage reciprocably mounted on said base, said carriage having longitudinally spaced upper and lower platforms, guides mounted above said carriage and holding a stack of sheets in position whereby horizontal shifting of the stack is prevented, the carriage being movable between a first position in which the upper platform supports said stack and a second position in which the lower platform supports the stack, and dividing means separate from and narrower than said platforms, said dividing means being actuatable in response to arrival of said lower platform beneath said stack for separating a portion of a group of sheets of predetermined count from the lower end of said stack, said upper platform being so shaped as to enter between said stack and group at said separated portion upon return movement of said carriage to its first position and continue to enter between the stack and group, whereby the group will become separated from the stack and dropped below the upper platform.
Claim 2
Dependent Claim
178 words
In a mechanism for dividing a stack of sheets into groups of predetermined count, a base, a carriage reciprocably mounted on said base, said carriage having longitudinally spaced upper and lower platforms, guides mounted above said carriage and holding a stack of sheets in position whereby horizontal shifting of the stack is prevented, the carriage being movable between a first position in which the upper platform supports said stack and a second position in which the lower platform supports the stack, and dividing means separate from and narrower than said platforms, said dividing means being actuatable in response to arrival of said lower platform beneath said stack for separating a portion of a group of sheets of predetermined count from the lower end of said stack, said upper platform being so shaped as to enter between said stack and group at said separated portion upon return movement of said carriage to its first position and continue to enter between the stack and group, whereby the group will become separated from the stack and dropped below the upper platform.
Claim 3
Dependent Claim
20 words
The combination according to claim 1, further provided with means for vertically adjusting the height of one of said platforms.
Claim 4
Dependent Claim
15 words
The combination according to claim 2, said height adjusting means being for said lower platform.
Claim 5
Dependent Claim
31 words
The combination according to claim 3, said lower platform comprising a base and a plate above said base, said height adjusting means comprising rotatable eccentric members connecting said plate and base.
Claim 6
Dependent Claim
50 words
The combination according to claim 1, said dividing means being located at one corner of said stack at the end of the machine toward which said group is delivered, said upper platform having an inclined inner edge whereby the forward corner thereof will enter at said corner of the stack.
Claim 7
Dependent Claim
39 words
The combination according to claim 1, said dividing means comprising a reference finger reciprocably mounted at one corner of said stack, a separating wedge mounted above said finger, and means for adjusting the distance between said finger and wedge.
Claim 8
Dependent Claim
71 words
The combination according to claim 1, said stack guiding means comprising three adjustable guides at three corners of said stack and a fixed guide in the fourth corner, said stack dividing means comprising a reference finger and a separating wedge at said fourth corner, said reference finger being engageable with the underside of the stack, and means for adjusting the height of the separating wedge with respect to the reference finger.
Claim 9
Dependent Claim
43 words
The combination according to claim 1, further provided with delivery means on said carriage for receiving said dropped group, whereby the group will be delivered to a pick-up point upon the next movement of said carriage from its first to its second position.
References Cited (Backward Citations)
US1326194A
Cited
US1238138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |