Patent EP0056307A2 successfully refreshed from Google Patents.
US3602140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary antismut device having radially adjustable sheet-supporting wheels
Assignee: Individual
•
Filing: 1970-02-09
•
Granted: 1971-08-31
•
Expires: 1990-02-09
Abstract
Abstract A method for eliminating the marking on a conventional lithographic press by spacing the sheet after it is lithographed and while it is still wet from the skeleton wheels by small, rotary members of ''''Teflon'''' plastic or the like at spaced intervals beyond the periphery of each skeleton wheel. For example, a conventional Harris-Seybold Company, Cleveland, Ohio press L.T.P. or L.U.P., lithographic press has a plurality of spaced, skeleton wheels or discs on a shaft about which the wet sheets are moved as the sheets are pulled from the press by the chain grippers. Marking which has occurred at this point is substantially eliminated through the use of a plurality of small, individual ''''Teflon'''' discs or rollers which have a thin, circular edge around the periphery and which are spaced apart arcuately around the periphery of each skeleton wheel so that the sheet is engaged by these small disc members in sequence as it is pulled by the grippers from the press so that the sheet is not visibly marked. In one form means is provided for simultaneous adjustment of all of the rollers from one control plus a scale for setting.
Inventors
- 👤 Ralph E Sudduth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:02
CPC Classifications
B; B41; B41F; B41F22/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
175 words
In an improvement in a lithographic press which includes a sheet removal apparatus having some gripping means for grasping the sheet to pull it from the press and means such as a skeleton wheel arrangement around which the sheet is pulled and directed as it is removed from the press, the improvement comprising: a. a plurality of individual, spaced elements protruding from the surface of the skeleton wheel and being separate from one another arcuately around the periphery of said skeleton wheel whereby said sheet is engaged sequentially by each of said elements as it is removed from the press, b. each of said elements being a small wheel mounted for individual rotation and having a thin peripheral circular edge and being constructed from a material such as polytetrafluoroethylene plastic, c. each element being respectively adjustable substantially radially selectively outwardly and inwardly with respect to the center of said skeleton wheel thereby to selectively increase or decrease the extent of protrusion from the skeleton wheel, d. and means for simultaneously adjusting all of said elements.
Claim 2
Dependent Claim
175 words
In an improvement in a lithographic press which includes a sheet removal apparatus having some gripping means for grasping the sheet to pull it from the press and means such as a skeleton wheel arrangement around which the sheet is pulled and directed as it is removed from the press, the improvement comprising: a. a plurality of individual, spaced elements protruding from the surface of the skeleton wheel and being separate from one another arcuately around the periphery of said skeleton wheel whereby said sheet is engaged sequentially by each of said elements as it is removed from the press, b. each of said elements being a small wheel mounted for individual rotation and having a thin peripheral circular edge and being constructed from a material such as polytetrafluoroethylene plastic, c. each element being respectively adjustable substantially radially selectively outwardly and inwardly with respect to the center of said skeleton wheel thereby to selectively increase or decrease the extent of protrusion from the skeleton wheel, d. and means for simultaneously adjusting all of said elements.
Claim 3
Dependent Claim
21 words
The device in claim 1, said means for adjusting; having a means therewith for securing said elements in place after adjustment.
Claim 4
Dependent Claim
29 words
The device in claim 1: said means for simultaneously adjusting including a member relatively adjustable with respect to said skeleton wheel to effect movement of all of said elements.
Claim 5
Dependent Claim
28 words
The device claimed in claim 1, wherein: each of said elements is mounted on a bracket and said bracket is adjustably attached to a position on said roller.
Claim 6
Dependent Claim
26 words
The device in claim 4, wherein: each bracket has a slot therein and a plurality of graduations marked thereon for adjustment and selecting the proper location.
Claim 7
Dependent Claim
59 words
The device in claim 4. means for simultaneously adjusting all of said elements by moving said respective brackets therefor, said means including a stationary element on said skeleton wheel on which said brackets are mounted for movement and a selectively movable adjusting element on said skeleton wheel relatively movable with regards to said stationary element to move said brackets.
Claim 8
Dependent Claim
25 words
The device in claim 6: means on each of said brackets engageable by a means on said adjusting element to effect movement thereof during adjustment.
Claim 9
Dependent Claim
33 words
The device in claim 7: said means on each of said brackets including a slot in which there is positioned a protruding member mounted on said adjusting element to move in said slot,
Claim 10
Dependent Claim
25 words
The device in claim 8: said stationary element being a plate and said adjusting element being a plate mounted in movable a position there against.
Claim 11
Dependent Claim
17 words
The device in claim 9: said protruding members each being a pin fixEd to said adjusting plate.
Claim 12
Dependent Claim
28 words
The device in claim 9: said movable adjusting element plate having a channel therein, there being locating and alignment members protruding from said stationary plate into said channel.
Claim 13
Dependent Claim
30 words
The device in claim 11: said brackets each being pivotally mounted by means of a pivot, said pivot being the members protruding from said fixed stationary plate into said channel.
Claim 14
Dependent Claim
19 words
The device in claim 11: said fixed plate having a slot therein, a hub attached to said fixed plate.
Claim 15
Dependent Claim
32 words
The deice in claim 13: said hub having means affixed to said stationary plate mounting said hub thereon, means attaching said movable adjusting plate on said hub for movement for adjustment thereon.
Claim 16
Dependent Claim
23 words
The device in claim 14: said hub or said adjusting plate having slots therein and the other having adjustment screws in said slots.
References Cited (Backward Citations)
US2181241A
Cited
US2971064A
Cited
US3099181A
Cited
US3054348A
Cited
US3334892A
Cited
US3442506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |