Patent US3570335A successfully refreshed from Google Patents.
US3570335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam actuated paperworking assembly for folding machines
Assignee: Pitney Bowes Inc
•
Filing: 1969-03-17
•
Granted: 1971-03-16
•
Expires: 1989-03-17
Abstract
Abstract The disclosed apparatus is a folding machine for paper sheets which includes a paperworking assembly for performing operations such as perforating, scoring or slitting on each folded sheet. Sheets are fed through the apparatus and folded by means of buckle chutes. They then pass through the paperworking assembly which comprises a pair of rotatable shafts carrying selected combinations of cooperating pairs of feed and working rollers which act to perforate, score and/or slit the folded sheets. The shafts and their rolls may be moved between an operative position and an inoperative position by actuation of a cam which lifts one shaft. This simple procedure makes the paperworking assembly suited for use in heavy machines, or in those in which the paperworking assembly must be frequently made inoperative. The paperworking assembly also pivots from the machine for changing shafts or realigning or changing the feed or working rolls.
Inventors
- 👤 Mario James Marin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:16
CPC Classifications
B; B65; B65H; B65H45/00; B65H45/12; B65H45/14; B65H45/142; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/0207; Y10T83/0215; Y10T83/0222; Y10T83/465; Y10T83/4699; Y10T83/4702; Y10T83/4766; Y10T83/4769; Y10T83/4795; Y10T83/483; Y10T83/4844; Y10T83/647; Y10T83/6584; Y10T83/6592; Y10T83/6598; Y10T83/768; Y10T83/7747; Y10T83/7751
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
146 words
In a sheet folding machine, an assembly for performing an operation such as scoring, slitting or perforating on each folded sheet comprising: A. a pair of parallel rotatable shafts carrying a selected grouping of cooperating pairs of feed and working rolls, said shafts being mounted to said machine adjacent the area of discharge of the folded paper sheets; B. means driving at least one of said shafts; and C. cam actuating means operating to separate said shafts to render the rolls thereon inoperative, and to return said shafts and the rolls thereon to an operative position, said cam actuating means comprising, a subframe supporting one said shaft for movement toward and away from the other said shaft in a plane common to both said shafts, and a rotatable cam engaging with and moving said subframe and its supported shaft toward or away from said other shaft.
Claim 2
Dependent Claim
146 words
In a sheet folding machine, an assembly for performing an operation such as scoring, slitting or perforating on each folded sheet comprising: A. a pair of parallel rotatable shafts carrying a selected grouping of cooperating pairs of feed and working rolls, said shafts being mounted to said machine adjacent the area of discharge of the folded paper sheets; B. means driving at least one of said shafts; and C. cam actuating means operating to separate said shafts to render the rolls thereon inoperative, and to return said shafts and the rolls thereon to an operative position, said cam actuating means comprising, a subframe supporting one said shaft for movement toward and away from the other said shaft in a plane common to both said shafts, and a rotatable cam engaging with and moving said subframe and its supported shaft toward or away from said other shaft.
Claim 3
Dependent Claim
27 words
A machine as defined in claim 1 wherein said supported shaft is mounted for free rotational movement in said subframe and said other shaft is positively driven.
Claim 4
Dependent Claim
105 words
a selected grouping of feeding and working rolls carried by said second shaft, said rolls corresponding to said feeding and working rolls carried by said first shaft and cooperating therewith to perform scoring, slitting and/or perforating operations when said shafts are in an operative position; and C. means for moving said subframe between operative and inoperative positions comprising a single rotatable cam mounted to said machine and having a lifting surface thereon, and a follower on said subframe in position to be contacted by said lifting surface when said cam is rotated to move said subframe and said second shaft away from said first shaft.
Claim 5
Dependent Claim
105 words
a selected grouping of feeding and working rolls carried by said second shaft, said rolls corresponding to said feeding and working rolls carried by said first shaft and cooperating therewith to perform scoring, slitting and/or perforating operations when said shafts are in an operative position; and C. means for moving said subframe between operative and inoperative positions comprising a single rotatable cam mounted to said machine and having a lifting surface thereon, and a follower on said subframe in position to be contacted by said lifting surface when said cam is rotated to move said subframe and said second shaft away from said first shaft.
Claim 6
Dependent Claim
52 words
A machine as defined in claim 1 wherein said cam has a lifting surface thereon, and including a follower on said subframe in position to be contacted by said lifting surface when said cam is rotated to one orientation to move said subframe and its supported shaft away from said other shaft.
Claim 7
Dependent Claim
51 words
A machine as defined in claim 3 wherein said cam further has a lowering surface, a portion of said subframe being in position to be contacted by said lowering surface when said cam is rotated to a second orientation to move said subframe and its supported shaft toward said other shaft.
Claim 8
Dependent Claim
51 words
A machine as defined in claim 4 wherein said cam further includes a supporting surface adjacent said lifting surface and a locking surface adjacent said lowering surface, said sUpporting and locking surfaces cooperating respectively with said follower and subframe portion to maintain said shafts in said inoperative and operative position respectively.
Claim 9
Dependent Claim
46 words
A machine as defined in claim 3 wherein said supported shaft is spring mounted in said subframe, the springs biasing said supported shaft toward said other shaft to keep said feeding and working rolls thereon in cooperating relationship when said shafts are in an operative position.
Claim 10
Dependent Claim
53 words
In a paper folding machine, a paperworking assembly for scoring, slitting and/or perforating folded paper sheets comprising: A. a first driven shaft rotatably mounted to said machine, said first shaft carrying a selected grouping of feeding and working rolls; B. a second shaft rotatably supported parallel to said first shaft by a subframe;
Claim 11
Dependent Claim
53 words
In a paper folding machine, a paperworking assembly for scoring, slitting and/or perforating folded paper sheets comprising: A. a first driven shaft rotatably mounted to said machine, said first shaft carrying a selected grouping of feeding and working rolls; B. a second shaft rotatably supported parallel to said first shaft by a subframe;
Claim 12
Dependent Claim
26 words
A machine as defined in claim 7 including means confining said movement of said subframe to a plane common to both said first and second shafts.
Claim 13
Dependent Claim
41 words
A machine as defined in claim 7 including a frame pivotably mounted about said first shaft and carrying said subframe, said frame being pivotable out of said machine for purposes of making changes to said shafts or the rolls carried thereon.
Claim 14
Dependent Claim
51 words
A machine as defined in claim 7 wherein said cam further has a lowering surface, a portion of said subframe being in position to be contacted by said lowering surface when said cam is rotated to a second orientation to move said subframe and its supported shaft toward said other shaft.
Claim 15
Dependent Claim
51 words
A machine as defined in claim 10 wherein said cam further includes a supporting surface adjacent said lifting surface and a locking surface adjacent said lowering surface, said supporting and locking surfaces cooperating respectively with said follower and subframe portion to maintain said shafts in said inoperative and operative positions respectively.
Claim 16
Dependent Claim
119 words
In a sheet folding machine, an assembly for performing an operation such as scoring, slitting or perforating on each folded sheet comprising: A. a pair of parallel rotatable shafts carrying a selected grouping of cooperating pairs of feed and working rolls, said shafts being mounted to said machine adjacent the area of discharge of the folded paper sheets; B. means driving at least one of said shafts; and C. a single cam rotatably mounted to said machine and engaging with cam follower means connected with one said shaft to separate said shafts and render the rolls thereon inoperative at one cam orientation, and to return said shafts and the rolls thereon to an operative position at another cam orientation.
Claim 17
Dependent Claim
119 words
In a sheet folding machine, an assembly for performing an operation such as scoring, slitting or perforating on each folded sheet comprising: A. a pair of parallel rotatable shafts carrying a selected grouping of cooperating pairs of feed and working rolls, said shafts being mounted to said machine adjacent the area of discharge of the folded paper sheets; B. means driving at least one of said shafts; and C. a single cam rotatably mounted to said machine and engaging with cam follower means connected with one said shaft to separate said shafts and render the rolls thereon inoperative at one cam orientation, and to return said shafts and the rolls thereon to an operative position at another cam orientation.
Claim 18
Dependent Claim
43 words
A machine as defined in claim 12 including a frame pivotably mounted about one said shaft and carrying the other said shaft, said frame being pivotable out of said machine for purposes of making changes to said shafts or the rolls carried thereon.
References Cited (Backward Citations)
USRE20492E
Cited
US904247A
Cited
US1037284A
Cited
US1510656A
Cited
US1462478A
Cited
US2572802A
Cited
US3122040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |