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US3938436A Expired / Lapsed US ⏱️ 0.0 years remaining

Selective embossing press with drum stop means

Assignee: Hilti AG
•
Filing: 1974-04-16
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Granted: 1976-02-17
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Expires: 1994-04-16
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Abstract

Abstract In an embossing press, a pair of rolls are arranged to be moved toward and away from one another to effect the embossing operation. Each embossing roll includes a number of drums with replaceable indicia plugs on their circumferential peripheries. The drums are detachably coupled to a shaft so that the drums can rotate with the shaft or can be uncoupled while the shaft continues to rotate. A drive system is connected to each of the shafts for rotating them through a predetermined angle of rotation. An arrestor set-up is associated with the drums for uncoupling each drum from its shaft so that a particular indicia plug is located in the operative position of the embossing rolls. A feeder mechanism directs a continuous length of sheet material into the operating position of the rolls and shearing blades, movably connected to the shafts, are arranged to cut the sheet materials into individual sections.

Inventors

  • 👤 Eric Douglas Woodhouse

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 19:16
CPC Classifications
B; B44; B44B; B44B5/00; B44B5/0076; B41; B41J; B41J3/00; B41J3/407; B41J3/413

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 468 words
An embossing press comprising a pair of oppositely disposed embossing rolls, each said embossing roll comprising a shaft, a plurality of indicia drums mounted on said shaft with each said drum mounted opposite a corresponding said drum on the other said shaft, means for releasably coupling said indicia drums to said shaft for rotation of said drums with said shaft, said means permitting the uncoupling of said drums and said shaft on the application of a sufficient force, upstanding indicia mounted on and spaced angularly apart on the outer periphery of said drums of one said shaft, and complementary indented indicia mounted on and spaced angularly apart on the outer periphery of said drums of the other said shaft, shaft drive means operatively connected to each said shaft for rotating each said shaft and said drums thereon from an initial rest position through a predetermined angle of rotation so that all of the indicia on each said drum can be moved into an operative position confronting the corresponding indicia on the corresponding drum on the other said shaft, arrestor means for holding each of said drums in position, each said drum having a plurality of grooves formed therein to provide an interengagement location with said arrestor means for each indicia on said drum, said arrestor means being selectively engageable with said grooves for arresting each said drum with a selected indicia thereon in the operative position and confronting the corresponding said indicia on the corresponding said drum on the other said shaft, pressure means for urging the oppositely disposed embossing rolls toward one another under pressure for embossing with said indicia located in the operative positions, severing means operatively connected to said pressure means to permit individual sections of material to be severed from a continuous length of sheet material fed to the press for embossing so that individual embossed elements or plates can be produced after the embossment of the individual sections, said severing means comprising a pair of shearing bars, one of said shearing bars being mounted on one of said shafts and the other said shearing bar being mounted on the other said shaft so that said shearing bars are displaceable between their operative positions wherein they cooperate with one another, when the shaft are rotated forwardly from their initial positions, so that they will not obstruct the embossing operation and are returned to their operative positions upon return of said shaft to the initial rest position, bearings disconnectedly mounted on each said shaft for rotation therewith so that relative rotation between said bearings and said shaft can be accomplished, each said shearing bar is connected to said bearings for mounting said shearing baroon said shaft with which it is associated, and stop means arranged for defining an inoperative position of each said shearing bar.
Claim 2
Dependent Claim 468 words
An embossing press comprising a pair of oppositely disposed embossing rolls, each said embossing roll comprising a shaft, a plurality of indicia drums mounted on said shaft with each said drum mounted opposite a corresponding said drum on the other said shaft, means for releasably coupling said indicia drums to said shaft for rotation of said drums with said shaft, said means permitting the uncoupling of said drums and said shaft on the application of a sufficient force, upstanding indicia mounted on and spaced angularly apart on the outer periphery of said drums of one said shaft, and complementary indented indicia mounted on and spaced angularly apart on the outer periphery of said drums of the other said shaft, shaft drive means operatively connected to each said shaft for rotating each said shaft and said drums thereon from an initial rest position through a predetermined angle of rotation so that all of the indicia on each said drum can be moved into an operative position confronting the corresponding indicia on the corresponding drum on the other said shaft, arrestor means for holding each of said drums in position, each said drum having a plurality of grooves formed therein to provide an interengagement location with said arrestor means for each indicia on said drum, said arrestor means being selectively engageable with said grooves for arresting each said drum with a selected indicia thereon in the operative position and confronting the corresponding said indicia on the corresponding said drum on the other said shaft, pressure means for urging the oppositely disposed embossing rolls toward one another under pressure for embossing with said indicia located in the operative positions, severing means operatively connected to said pressure means to permit individual sections of material to be severed from a continuous length of sheet material fed to the press for embossing so that individual embossed elements or plates can be produced after the embossment of the individual sections, said severing means comprising a pair of shearing bars, one of said shearing bars being mounted on one of said shafts and the other said shearing bar being mounted on the other said shaft so that said shearing bars are displaceable between their operative positions wherein they cooperate with one another, when the shaft are rotated forwardly from their initial positions, so that they will not obstruct the embossing operation and are returned to their operative positions upon return of said shaft to the initial rest position, bearings disconnectedly mounted on each said shaft for rotation therewith so that relative rotation between said bearings and said shaft can be accomplished, each said shearing bar is connected to said bearings for mounting said shearing baroon said shaft with which it is associated, and stop means arranged for defining an inoperative position of each said shearing bar.
Claim 3
Dependent Claim 341 words
An embossing press comprising a pair of oppositely disposed embossing rolls, each said embossing roll comprising a shaft, a plurality of indicia drums mounted on said shaft with each said drum mounted opposite a corresponding said drum on the other said shaft, means for releasable coupling said indicia drums to said shaft for rotation of said drums with said shaft, said means permitting the uncoupling of said drums and said shaft on the application of a counter force, upstanding indicia mounted and spaced angularly apart on the outer periphery of said drums of one said shaft, and complementary indented indicia mounted on and spaced angularly apart on the outer periphery of said drums of the other said shaft, shaft drive means operatively connected to each said shaft for rotating each said shaft and said drums thereon from an initial rest position through a predetermined angle of rotation so that all of the indicia on each said drum can be moved into an operative position confronting the corresponding indicia on the corresponding drum on the other said shaft, remotely operated arrestor means for holding each of said drums in position, the outwardly facing surface of each said drum having a plurality of circumferentially spaced radially extending blind arresting grooves being positioned to provide an interengagement location on said drums for each indicia thereon for selectively interengaging with said arrestor means, said arrestor means comprises a body spaced radially outwardly from the outwardly facing surfaces of said indicia drums, a plunger displaceably mounted within said body for each said drum and each said plunger being extensible from said body toward its associated said drum into a selected one of said arresting grooves to hold said drum with its corresponding said indicia in the operative position, so that indicia thereon in the operative position confronts the corresponding said indicia on the corresponding said drum on the other said shaft, and pressure means for urging the oppositely disposed embossing rolls toward one another under pressure for embossing with said indicia located in the operative positions.
Claim 4
Dependent Claim 341 words
An embossing press comprising a pair of oppositely disposed embossing rolls, each said embossing roll comprising a shaft, a plurality of indicia drums mounted on said shaft with each said drum mounted opposite a corresponding said drum on the other said shaft, means for releasable coupling said indicia drums to said shaft for rotation of said drums with said shaft, said means permitting the uncoupling of said drums and said shaft on the application of a counter force, upstanding indicia mounted and spaced angularly apart on the outer periphery of said drums of one said shaft, and complementary indented indicia mounted on and spaced angularly apart on the outer periphery of said drums of the other said shaft, shaft drive means operatively connected to each said shaft for rotating each said shaft and said drums thereon from an initial rest position through a predetermined angle of rotation so that all of the indicia on each said drum can be moved into an operative position confronting the corresponding indicia on the corresponding drum on the other said shaft, remotely operated arrestor means for holding each of said drums in position, the outwardly facing surface of each said drum having a plurality of circumferentially spaced radially extending blind arresting grooves being positioned to provide an interengagement location on said drums for each indicia thereon for selectively interengaging with said arrestor means, said arrestor means comprises a body spaced radially outwardly from the outwardly facing surfaces of said indicia drums, a plunger displaceably mounted within said body for each said drum and each said plunger being extensible from said body toward its associated said drum into a selected one of said arresting grooves to hold said drum with its corresponding said indicia in the operative position, so that indicia thereon in the operative position confronts the corresponding said indicia on the corresponding said drum on the other said shaft, and pressure means for urging the oppositely disposed embossing rolls toward one another under pressure for embossing with said indicia located in the operative positions.
Claim 5
Dependent Claim 42 words
An embossing press, as set forth in claim 2, wherein said means for coupling said drums to said shaft comprises yieldable detents in one of said drums and said shaft and cooperating recesses in the other of said drums and said shaft.
Claim 6
Dependent Claim 68 words
An embossing press, as set forth in claim 3, wherein said yieldable detents each comprise a spring-loaded member cooperating with a circumferentially extending row of said detent recesses, each said recess is associated with a respective one of said indicia so that engagement of said spring-loaded member into any of said detent recesses holds said drum with said indicia associated with said detent recess in the operative position.
Claim 7
Dependent Claim 40 words
An embossing press, as set forth in claim 4, wherein said detent recesses are located in the inwardly facing surface of said drum directed toward said shaft and said spring-loaded members are located in radially extending recesses in said shaft.
Claim 8
Dependent Claim 65 words
An embossing press, as set forth in claim 2, including severing means operatively connected to said pressure means to permit individual sections of material to be severed from a continuous length of sheet material fed to the press for embossing so that individual embossed elements or plates can be produced by severing individual sections from the continuous lengths after the embossment of the individual sections.
Claim 9
Dependent Claim 97 words
An embossing press, as set forth in claim 6, wherein said severing means comprises a pair of shearing bars, one of said shearing bars being mounted on one of said shafts and the other said shearing bar being mounted on the other said shaft so that said shearing bars are displaceable between their operative positions wherein they cooperate with one another, when the shafts are rotated forwardly from their initial positions, so that they will not obstruct the embossing operation and are returned to their operative positions upon return of said shaft to the initial rest position.
Claim 10
Dependent Claim 31 words
An embossing press, as set forth in claim 2, wherein feed means are provided for feeding a continuous length of sheet material into position to be embossed between the embossing rolls.

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) 1979-02-16 1979-08-18 1980-02-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1983-02-16 1983-08-18 1984-02-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1987-02-16 1987-08-18 1988-02-17 $7700.00 Window Closed / Lapsed

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