Patent US3894488A successfully refreshed from Google Patents.
US3894488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing pressure control apparatus for intaglio press
Assignee: BNY Mellon NA
•
Filing: 1972-10-17
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Granted: 1975-07-15
•
Expires: 1992-10-17
Abstract
Abstract Apparatus for applying and relieving the printing pressure between the plate cylinder and the impression cylinder of an intaglio press, including fast acting hydraulic motor driven means for moving one cylinder to and relieving the printing pressure. Wedge means are provided for adjusting the spacing between the plate cylinder axis and the impression cylinder axis. Motors drive the wedge means, and the control means for the wedge driving motors is interlocked with the control for the pressure applying and relieving apparatus so that the wedges cannot move while the cylinders are under printing pressure. The plate cylinder and the impression cylinder are connected by a square gear train of helical gears. One of the gears in the train is axially adjusted by a cam mechanism in response to the pressure applying and relieving movement of the one cylinder so that synchronous rotation of the plate cylinder and the impression cylinder is achieved at all relative positions of those two cylinders, and the pressure applying and relieving movements of the one cylinder are not accompanied by angular acceleration of either of the cylinders. Interlocking safety and sequence controls are provided between the pressure applying and relieving motors, the wedge adjusting motors, a sheet feeder control, a missing sheet detector, and a load cell mechanism which measures the pressure applied between the cylinders.
Inventors
- 👤 Ivaldo Gazzola
- 👤 By Eles Gazzola
- 👤 Heirs By Langranco Gazzola
- 👤 Amato Salvatore F D
- 👤 Jr Chauncey P Foote
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:35
CPC Classifications
B; B41; B41F; B41F13/00; B41F13/08; B41F13/24; B41F13/34; B41F13/36
Claims Analysis
Total Claims: 80
Claim 1
Independent Claim
302 words
An intaglio printing press, comprising: a. frame means including opposed side frame members having opposed vertically extending slideways open at the top; b. a plate cylinder fixed on a shaft whose ends project inside said slideways adjacent the lower ends thereof; c. lower bearing blocks slidably received in said slideways and rotatably receiving the ends of the shaft; d. an impression cylinder fixed on a shaft whose ends project into the slideways above the ends of the plate cylinder shaft, said impression cylinder being adapted to run in rolling contact with the plate cylinder; e. upper bearing blocks slidably supported in the slideways and rotatably supporting the ends of the impression cylinder shaft; f. means for moving one of the cylinders with respect to the other cylinder to apply and relieve pressure at the line of contact between said plate and impression cylinders; g. means connecting the plate cylinder and the impression cylinder for synchronous rotation including: 1. first helical gear means fixed on the shaft of the plate cylinder; 2. second helical gear means engaging said first helical gear means; 3. third helical gear means engaging said second helical gear means; and 4. fourth helical gear means fixed on the shaft of the impression cylinder and engaging said third helical gear means; h. one of said second and third helical gear means comprising two gears rotatable about a common axis and splined together for concurrent rotation and relative axial movement, and means holding one of said two gears against axial movement; i. cam means for moving the othEr of said two gears axially in response to vertical movement of said one cylinder to introduce a compensating rotation into the gear train, so that the impression cylinder and the plate cylinder do not change their relative angular positions during that vertical movement.
Claim 2
Dependent Claim
302 words
An intaglio printing press, comprising: a. frame means including opposed side frame members having opposed vertically extending slideways open at the top; b. a plate cylinder fixed on a shaft whose ends project inside said slideways adjacent the lower ends thereof; c. lower bearing blocks slidably received in said slideways and rotatably receiving the ends of the shaft; d. an impression cylinder fixed on a shaft whose ends project into the slideways above the ends of the plate cylinder shaft, said impression cylinder being adapted to run in rolling contact with the plate cylinder; e. upper bearing blocks slidably supported in the slideways and rotatably supporting the ends of the impression cylinder shaft; f. means for moving one of the cylinders with respect to the other cylinder to apply and relieve pressure at the line of contact between said plate and impression cylinders; g. means connecting the plate cylinder and the impression cylinder for synchronous rotation including: 1. first helical gear means fixed on the shaft of the plate cylinder; 2. second helical gear means engaging said first helical gear means; 3. third helical gear means engaging said second helical gear means; and 4. fourth helical gear means fixed on the shaft of the impression cylinder and engaging said third helical gear means; h. one of said second and third helical gear means comprising two gears rotatable about a common axis and splined together for concurrent rotation and relative axial movement, and means holding one of said two gears against axial movement; i. cam means for moving the othEr of said two gears axially in response to vertical movement of said one cylinder to introduce a compensating rotation into the gear train, so that the impression cylinder and the plate cylinder do not change their relative angular positions during that vertical movement.
Claim 3
Dependent Claim
57 words
An intaglio printing press as in claim 1, in which: a. said cam means comprises a cam connected to the bearing block for said one cylinder for concurrent movement therewith; b. a follower for the cam connected to said other gear for concurrent rotation therewith; and c. spring means biasing said follower and said cam into engagement.
Claim 4
Dependent Claim
15 words
means for selecting one or both of said wedge member driving means for operation; and
Claim 5
Dependent Claim
15 words
means for selecting one or both of said wedge member driving means for operation; and
Claim 6
Dependent Claim
33 words
a second wedge member, horizontally movable and having an inclined planar upper surface engaging said under surface of the first wedge member, and a horizontal under surface supported by said lower bearing block;
Claim 7
Dependent Claim
33 words
a second wedge member, horizontally movable and having an inclined planar upper surface engaging said under surface of the first wedge member, and a horizontal under surface supported by said lower bearing block;
Claim 8
Dependent Claim
10 words
second helical gear means engaging said first helical gear means;
Claim 9
Dependent Claim
10 words
second helical gear means engaging said first helical gear means;
Claim 10
Dependent Claim
9 words
antifriction bearing means between said flanges and the cap;
Claim 11
Dependent Claim
9 words
antifriction bearing means between said flanges and the cap;
Claim 12
Dependent Claim
33 words
a second wedge member, horizontally movable and having an inclined planar upper surface engaging said under surface of the first wedge member, and a horizontal under surface supported by said lower bearing block;
Claim 13
Dependent Claim
33 words
a second wedge member, horizontally movable and having an inclined planar upper surface engaging said under surface of the first wedge member, and a horizontal under surface supported by said lower bearing block;
Claim 14
Dependent Claim
9 words
a first clutch member rotatable on the lead screw;
Claim 15
Dependent Claim
9 words
a first clutch member rotatable on the lead screw;
Claim 16
Dependent Claim
23 words
motor means operable to move the upper bearing block vertically to apply and relieve pressure between the cylinders at their line of contact;
Claim 17
Dependent Claim
23 words
motor means operable to move the upper bearing block vertically to apply and relieve pressure between the cylinders at their line of contact;
Claim 18
Dependent Claim
24 words
an externally threaded shaft, fixed against rotation, said shaft being received in said nut and extending downwardly below the lower end of the nut;
Claim 19
Dependent Claim
24 words
an externally threaded shaft, fixed against rotation, said shaft being received in said nut and extending downwardly below the lower end of the nut;
Claim 20
Dependent Claim
11 words
third helical gear means engaging said second helical gear means; and
Claim 21
Dependent Claim
11 words
third helical gear means engaging said second helical gear means; and
Claim 22
Dependent Claim
8 words
a pinion fixed to the first clutch member;
Claim 23
Dependent Claim
8 words
a pinion fixed to the first clutch member;
Claim 24
Dependent Claim
23 words
motor means operable to move the upper bearing block vertically to apply and relieve pressure between the cylinders at their line of contact;
Claim 25
Dependent Claim
23 words
motor means operable to move the upper bearing block vertically to apply and relieve pressure between the cylinders at their line of contact;
Claim 26
Dependent Claim
17 words
means responsive to actuation of both said selecting means to actuate the selected clutch drive means; and
Claim 27
Dependent Claim
17 words
means responsive to actuation of both said selecting means to actuate the selected clutch drive means; and
Claim 28
Dependent Claim
67 words
An intaglio printing press as in claim 1, in which: a. said cam means comprises two spaced oppositely facing rotatable cams connected to the bearing block for said one cylinder for concurrent movement therewith; and b. two followers, one cooperating with each of said cams, and both fixed to said other gear, so that said other gear is positively driven in each direction by said cam means.
Claim 29
Dependent Claim
103 words
An intaglio printing press as in claim 1, in which: a. the plate cylinder has a first portion of its peripheral surface adapted to support a printing plate, and a second portion of smaller radius than the first portion; b. motor means for driving said cylinder moving means; c. manual control means for said motor means; and d. interlocking means responsive to the angular position of the plate cylinder and effective to prevent actuation of said motor means except when the line of contact between the plate cylinder and the pressure cylinder is located at said second portion of the plate cylinder surface.
Claim 30
Dependent Claim
25 words
means effective only after pressure is relieved to energize the sElected linear motor to change the axial spacing between the cylinders by a predetermined increment.
Claim 31
Dependent Claim
25 words
means effective only after pressure is relieved to energize the sElected linear motor to change the axial spacing between the cylinders by a predetermined increment.
Claim 32
Dependent Claim
12 words
a rack driven by the linear motor and cooperating with the pinion;
Claim 33
Dependent Claim
12 words
a rack driven by the linear motor and cooperating with the pinion;
Claim 34
Dependent Claim
108 words
fourth helical gear means fixed on the shaft of the impression cylinder and engaging said third helical gear means; h. one of said second and third helical gear means comprising two gears rotatable about a common axis and splined together for concurrent rotation and relative axial movement, and means holding one of said two gears against axial movement; i. cam means for moving the othEr of said two gears axially in response to vertical movement of said one cylinder to introduce a compensating rotation into the gear train, so that the impression cylinder and the plate cylinder do not change their relative angular positions during that vertical movement.
Claim 35
Dependent Claim
108 words
fourth helical gear means fixed on the shaft of the impression cylinder and engaging said third helical gear means; h. one of said second and third helical gear means comprising two gears rotatable about a common axis and splined together for concurrent rotation and relative axial movement, and means holding one of said two gears against axial movement; i. cam means for moving the othEr of said two gears axially in response to vertical movement of said one cylinder to introduce a compensating rotation into the gear train, so that the impression cylinder and the plate cylinder do not change their relative angular positions during that vertical movement.
Claim 36
Dependent Claim
16 words
means for driving the second wedge member horizontally to change the spacing between the cylinder axes;
Claim 37
Dependent Claim
16 words
means for driving the second wedge member horizontally to change the spacing between the cylinder axes;
Claim 38
Dependent Claim
27 words
means for measuring the pressure between said plate and impression cylinders, including a load cell having an upper end supporting the lower end of the threaded shaft;
Claim 39
Dependent Claim
27 words
means for measuring the pressure between said plate and impression cylinders, including a load cell having an upper end supporting the lower end of the threaded shaft;
Claim 40
Dependent Claim
16 words
means for driving the second wedge member horizontally to change the spacing between the cylinder axes;
Claim 41
Dependent Claim
16 words
means for driving the second wedge member horizontally to change the spacing between the cylinder axes;
Claim 42
Dependent Claim
19 words
connecting means supporting the lower end of the load cell and fastened to the top of the bearing block;
Claim 43
Dependent Claim
19 words
connecting means supporting the lower end of the load cell and fastened to the top of the bearing block;
Claim 44
Dependent Claim
162 words
An intaglio printing press, comprising: a. frame means including opposed side frame members having opposed vertically extending slideways open at the top; b. a plate cylinder fixed on a shaft whose ends project into said slideways adjacent the lower ends thereof; c. lower bearing blocks slidably received in said slideways and rotatably receiving the ends of the shaft; d. an impression cylinder fixed on a shaft whose ends project into the slideways above the ends of the plate cylinder shaft, said impression cylinder being adapted to run in rolling contact with the plate cylinder; e. upper bearing blocks slidably supported in the slideways and rotatably supporting the ends of the impression cylinder shaft; f. a pair of caps fixed on said side frame members and closing the upper ends of the slideways; g. means on each cap for vertically moving the associated upper bearing block to apply and relieve pressure between said plate and impression cylinders, each said vertically moving means comprising:
Claim 45
Dependent Claim
162 words
An intaglio printing press, comprising: a. frame means including opposed side frame members having opposed vertically extending slideways open at the top; b. a plate cylinder fixed on a shaft whose ends project into said slideways adjacent the lower ends thereof; c. lower bearing blocks slidably received in said slideways and rotatably receiving the ends of the shaft; d. an impression cylinder fixed on a shaft whose ends project into the slideways above the ends of the plate cylinder shaft, said impression cylinder being adapted to run in rolling contact with the plate cylinder; e. upper bearing blocks slidably supported in the slideways and rotatably supporting the ends of the impression cylinder shaft; f. a pair of caps fixed on said side frame members and closing the upper ends of the slideways; g. means on each cap for vertically moving the associated upper bearing block to apply and relieve pressure between said plate and impression cylinders, each said vertically moving means comprising:
Claim 46
Dependent Claim
30 words
said means for driving the second wedge member includes a lead screw supported in said frame means and extending transversely of the slideway and threadedly engaging said second wedge member;
Claim 47
Dependent Claim
30 words
said means for driving the second wedge member includes a lead screw supported in said frame means and extending transversely of the slideway and threadedly engaging said second wedge member;
Claim 48
Dependent Claim
38 words
second and third clutch members fixed to the lead screw and engageable selectively by said first clutch member for rotating the lead screw in one or the other direction in response to rotation of the first clutch member;
Claim 49
Dependent Claim
38 words
second and third clutch members fixed to the lead screw and engageable selectively by said first clutch member for rotating the lead screw in one or the other direction in response to rotation of the first clutch member;
Claim 50
Dependent Claim
16 words
piston means received in recess means in the upper surface of the first wedge member; and
Claim 51
Dependent Claim
16 words
piston means received in recess means in the upper surface of the first wedge member; and
Claim 52
Dependent Claim
23 words
spring means biasing said piston means toward a position where its upper surface is above the upper surface of the first wedge member.
Claim 53
Dependent Claim
23 words
spring means biasing said piston means toward a position where its upper surface is above the upper surface of the first wedge member.
Claim 54
Dependent Claim
33 words
clutch drive means operable selectively to shift the first clutch member into engagement with either of the second and third clutch members to select the direction of rotation of the lead screw; and
Claim 55
Dependent Claim
33 words
clutch drive means operable selectively to shift the first clutch member into engagement with either of the second and third clutch members to select the direction of rotation of the lead screw; and
Claim 56
Dependent Claim
28 words
spring means biasing said second wedge member in one direction along the lead screw, to take up lost motion between the second wedge member and the lead screw;
Claim 57
Dependent Claim
28 words
spring means biasing said second wedge member in one direction along the lead screw, to take up lost motion between the second wedge member and the lead screw;
Claim 58
Dependent Claim
140 words
An intaglio printing press as in claim 5, including compression spring means retained between the plate and the cap, said compression spring means comprising: a. a plurality of horizontally spaced cylinders having shouLders at their lower ends resting on the plate, and having projections on their lower ends received in recesses in the plate; b. a plurality of pistons, one slidable within each of said cylinders; and c. a spring compressed between each cylinder and its associated piston and biasing the piston upwardly into a recess in the cap; d. said cylinders having a dimension between their upper ends and said shoulders smaller than the spacing between said plate and said cap when the upper bearing block is in its pressure applying position, said cylinders serving to limit the travel of the upper bearing block in its pressure relieving direction.
Claim 59
Dependent Claim
24 words
said nut having an internally splined projection extending above the upper end of the shaft and aligned with the axis of the shaft; and
Claim 60
Dependent Claim
24 words
said nut having an internally splined projection extending above the upper end of the shaft and aligned with the axis of the shaft; and
Claim 61
Dependent Claim
124 words
An intaglio printing press as in claim 5, including: a. an oil retaining housing mounted on the upper surface of the cap and enclosing the upper end of the nut and the lower end of the motor shaft; b. a second oil retaining housing mounted on the lower surface of the cap and enclosing the lower end of the nut and engaging the lower end of the shaft; c. said shaft having a skirt at its lower end encircling the upper end of the load cell; d. sealing means between the periphery of the skirt and the lower oil housing; and e. oil passages extending longitudinally through the nut and the shaft to relieve pressure developed in the housing upon rotation of the nut.
Claim 62
Dependent Claim
16 words
a cage within said slideway for retaining said wedge members and holding them against lateral movement;
Claim 63
Dependent Claim
16 words
a cage within said slideway for retaining said wedge members and holding them against lateral movement;
Claim 64
Dependent Claim
7 words
control means for said clutch drive means.
Claim 65
Dependent Claim
7 words
control means for said clutch drive means.
Claim 66
Dependent Claim
36 words
motor means mounted on the cap above the upper end of the nut for rotating the nut, said motor means having a downwardly extending shaft with external splines cooperating with the internal splines on the nut.
Claim 67
Dependent Claim
36 words
motor means mounted on the cap above the upper end of the nut for rotating the nut, said motor means having a downwardly extending shaft with external splines cooperating with the internal splines on the nut.
Claim 68
Dependent Claim
127 words
An intaglio printing press as in claim 6, including: a. a first portion of the peripheral surface of said plate cylinder adapted to support a printing plate, and a second portion of smaller radius than the first portion; b. manual control means for said motor means; c. interlocking means responsive to the angular position of the plate cylinder and effective to prevent actuation of said motor means except when the line of contact between the plate cylinder and the pressure cylinder is located at said second portion of the plate cylinder surface; and d. means responsive to said load cell and operative to actuate said motor means in its pressure relieving sense at any angular position of the plate cylinder, whenever said pressure exceeds a predetermined value.
Claim 69
Dependent Claim
15 words
means in one wall of the cage providing a journal for said lead screw; and
Claim 70
Dependent Claim
15 words
means in one wall of the cage providing a journal for said lead screw; and
Claim 71
Dependent Claim
30 words
stop means in a wall of the cage for limiting endwise movement of the second wedge member to a range of positions near the center position of said wedge member.
Claim 72
Dependent Claim
30 words
stop means in a wall of the cage for limiting endwise movement of the second wedge member to a range of positions near the center position of said wedge member.
Claim 73
Dependent Claim
52 words
An intaglio printing press as in claim 8, including lost motion means fastening the skirt to the connecting means, said lost motion means permitting downward movement of the skirt with respect to the plate as the load cell is compressed, but limiting the upward movement of the skirt away from the plate.
Claim 74
Dependent Claim
34 words
An intaglio printing press as in claim 8, including means on the upper oil housing supporting said motor means, said upper oil housing having an aperture to accommodate the shaft of the motor means.
Claim 75
Dependent Claim
116 words
An intaglio printing press, including: a. frame means including opposed side frame members having opposed vertically extending slideways open at the top; b. a plate cylinder fixed on a shaft whose ends project into said slideways adjacent the lower ends thereof; c. lower bearing blocks slidably received in said slideways and rotatably receiving the ends of the shaft; d. an impression cylinder fixed on a shaft whose ends project into the slideways above the ends of the plate cylinder shaft; e. upper bearing blocks slidably supported in the slideways and rotatably supporting the ends of the impression cylinder shaft; f. means for adjusting the axial spacing between the plate and impression cylinders, comprising, for each slideway:
Claim 76
Dependent Claim
116 words
An intaglio printing press, including: a. frame means including opposed side frame members having opposed vertically extending slideways open at the top; b. a plate cylinder fixed on a shaft whose ends project into said slideways adjacent the lower ends thereof; c. lower bearing blocks slidably received in said slideways and rotatably receiving the ends of the shaft; d. an impression cylinder fixed on a shaft whose ends project into the slideways above the ends of the plate cylinder shaft; e. upper bearing blocks slidably supported in the slideways and rotatably supporting the ends of the impression cylinder shaft; f. means for adjusting the axial spacing between the plate and impression cylinders, comprising, for each slideway:
Claim 77
Dependent Claim
116 words
An intaglio printing press, including: a. frame means including opposed side frame members having opposed vertically extending slideways open at the top; b. a plate cylinder fixed on a shaft whose ends project into said slideways adjacent the lower ends thereof; c. lower bearing blocks slidably received in said slideways and rotatably receiving the ends of the shaft; d. an impression cylinder fixed on a shaft whose ends project into the slideways above the ends of the plate cylinder shaft; e. upper bearing blocks slidably supported in the slideways and rotatably supporting the ends of the impression cylinder shaft; f. means for adjusting the axial spacing between the plate and impression cylinders, comprising, for each slideway:
Claim 78
Dependent Claim
116 words
An intaglio printing press, including: a. frame means including opposed side frame members having opposed vertically extending slideways open at the top; b. a plate cylinder fixed on a shaft whose ends project into said slideways adjacent the lower ends thereof; c. lower bearing blocks slidably received in said slideways and rotatably receiving the ends of the shaft; d. an impression cylinder fixed on a shaft whose ends project into the slideways above the ends of the plate cylinder shaft; e. upper bearing blocks slidably supported in the slideways and rotatably supporting the ends of the impression cylinder shaft; f. means for adjusting the axial spacing between the plate and impression cylinders, comprising, for each slideway:
Claim 79
Dependent Claim
20 words
An intaglio printing press as in claim 12, in which: a. said means for driving the second wedge member comprises:
Claim 80
Dependent Claim
25 words
An intaglio printing press as in claim 13, including: a. manually operable control means for the motor means and the wedge member driving means, comprising:
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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) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |