US3642274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet-supporting assembly for an inverter roll
Assignee: Individual
•
Filing: 1970-08-07
•
Granted: 1972-02-15
•
Expires: 1990-08-07
Abstract
Abstract An inverter roll for an offset printing press includes a pair of axially spaced-apart spider wheels. A plurality of peripheral rods extend between the rims of the spider wheels and sheetsupporting wheels projecting beyond the cylindrical plane of the rims of the spider wheels are rotatably mounted on such rods to support the paper sheets as they pass around the inverter roll. The positions of such wheels along the rods are readily adjustable to ensure that such wheels always contact the printed surfaces of the sheets at nonprinted positions thereon.
Inventors
- 👤 Francis Walter Herrington
- 👤 James D Mcclure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:39
CPC Classifications
B; B41; B41F; B41F22/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
126 words
A sheet-supporting assembly for a roll of a printing press which assembly comprises a pair of axially spaced-apart mounting members adapted to be supported by a roll shaft, a plurality of generally peripheral rods extending between said mounting members so as to be generally parallel to the roll shaft, and a plurality of wheels rotatably mounted on said rods in adjustable positions therealong for supporting a paper sheet passing around said roll, each of said wheels comprising a generally planar annular disc rotatably mounted between first and second external and axially spaced-apart annular flanges provided on a sleeve frictionally engaging a respective one of said rods for slidable adjustment therealong, and the periphery of each of said wheels projecting beyond the plane of the mounting members.
Claim 2
Dependent Claim
126 words
A sheet-supporting assembly for a roll of a printing press which assembly comprises a pair of axially spaced-apart mounting members adapted to be supported by a roll shaft, a plurality of generally peripheral rods extending between said mounting members so as to be generally parallel to the roll shaft, and a plurality of wheels rotatably mounted on said rods in adjustable positions therealong for supporting a paper sheet passing around said roll, each of said wheels comprising a generally planar annular disc rotatably mounted between first and second external and axially spaced-apart annular flanges provided on a sleeve frictionally engaging a respective one of said rods for slidable adjustment therealong, and the periphery of each of said wheels projecting beyond the plane of the mounting members.
Claim 3
Dependent Claim
29 words
A sheet-supporting assembly as claimed in claim 1 for use on an inverter roll of a printing press and in which each said mounting member comprises a spider wheel.
Claim 4
Dependent Claim
38 words
A sheet-supporting assembly as claimed in claim 1 in which each said annular generally planar disc is integrally formed with a paper sheet-engaging annular flange extending in the axial direction from the peripheral edge of said planar disc.
Claim 5
Dependent Claim
40 words
A sheet-supporting assembly as claimed in claim 3 in which said sheet-engaging annular flange of each said annular generally planar disc is formed with a roughened external peripheral surface for engagement with a paper sheet passing about the inverter roll.
Claim 6
Dependent Claim
118 words
A sheeT-supporting assembly as claimed in claim 1 in which said annular generally planar disc of each said wheel is retained in position on a respective one of said sleeves by said first external annular flange which is integrally formed with said sleeve and by a resilient collar constituting said second external annular flange and which is axially retained in position on said sleeve by a first external annular lip integrally formed with said sleeve, said first annular lip being dimensioned so as to permit passage thereover of both said annular generally planar disc of said wheel and said collar when said collar is radially expanded but also normally to retain said collar in position around said sleeve.
Claim 7
Dependent Claim
51 words
A sheet-supporting assembly as claimed in claim 5 in which said sleeve is integrally formed with a second annular lip axially spaced apart from said first annular lip thereof to receive said collar therebetween and to receive said annular generally planar disc of a respective one of said wheels coaxially thereabout.
Claim 8
Dependent Claim
29 words
A sheet-supporting assembly as claimed in claim 6 in which each said sleeve is longitudinally slotted to facilitate its frictional gripping engagement with a respective one of said rods.
Claim 9
Dependent Claim
45 words
A sheet-supporting assembly as claimed in claim 7 in which each said sleeve, said first external annular flange thereof and said first and second annular lips thereof are integrally formed of a plastics material and in which said collar is formed of an elastomeric material.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |