US3886031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web lap splicer
Assignee: Compensating Tension Controls Inc
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Filing: 1974-06-10
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Granted: 1975-05-27
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Expires: 1994-06-10
Abstract
Abstract Apparatus for splicing the end of a spare roll of web to web being drawn from a depleting roll. The web in use extends past a cutting station and between two sets of spaced nip rollers. The web then extends to a festoon which acts as tension sensing element and a web storage mechanism. The motion of a carriage carrying the moveable festoon rollers operates a brake mechanism for controlling the unwind of the depleting roll. The web from the spare roll extends over a roller and between the first set of nip rollers. Conveyor belts extend between the first and second nip rollers. A piece of double faced pressure sensitive tape is applied to the end of the web to be spliced. When splicing is initiated the nip rolls move together attaching the new web to the running web. A knife then severs the web from the depleting roll. The festoon supplies web at constant tension while the new roll accelerates to line speed.
Inventors
- 👤 Charles M Taitel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:32
CPC Classifications
B; B65; B65H; B65H19/00; B65H19/10; B65H19/18; B65H19/1857; B65H19/1873; B65H19/1805; B65H19/1826; B65H19/1831; B65H2301/00; B65H2301/40; B65H2301/46; B65H2301/4601; B65H2301/46013; B65H2301/461; B65H2301/4615; B65H2301/4617; B65H2301/46172; B65H2301/463; B65H2301/4631; B65H2301/46312; B65H2301/464; B65H2301/46414
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
183 words
Apparatus for splicing the end of web material from a spare supply roll to web material being drawn from a depleting supply roll comprising in combination first and second leading nip rollers and first and second trailing nip rollers spaced from said leading rollers, each of said first and second rollers being normally spaced apart, at least one of said leading rollers and at least one of said trailing rollers being mounted to be moveable toward the other of said leading and trailing rollers, endless conveyor means extending between sAid first rollers, second endless conveyor means extending between said second rollers, directing the running web between said conveyor means in close proximity to said second leading roller, means for directing the web from said spare roll between said leading rollers and in close proximity to said first leading roller, and means for moving said moveably mounted leading and trailing rollers to bring said leading and trailing rollers together so that the spare web and the running web are pressed together to be joined by a piece of tape applied to the spare web.
Claim 2
Dependent Claim
183 words
Apparatus for splicing the end of web material from a spare supply roll to web material being drawn from a depleting supply roll comprising in combination first and second leading nip rollers and first and second trailing nip rollers spaced from said leading rollers, each of said first and second rollers being normally spaced apart, at least one of said leading rollers and at least one of said trailing rollers being mounted to be moveable toward the other of said leading and trailing rollers, endless conveyor means extending between sAid first rollers, second endless conveyor means extending between said second rollers, directing the running web between said conveyor means in close proximity to said second leading roller, means for directing the web from said spare roll between said leading rollers and in close proximity to said first leading roller, and means for moving said moveably mounted leading and trailing rollers to bring said leading and trailing rollers together so that the spare web and the running web are pressed together to be joined by a piece of tape applied to the spare web.
Claim 3
Dependent Claim
19 words
Apparatus according to claim 1 wherein said first and second conveyor means each include a plurality of endless belts.
Claim 4
Dependent Claim
39 words
Apparatus according to claim 2 wherein said nip rollers are formed with peripheral grooves for accepting said belts, said grooves being dimensioned to place the outer surface of said belts flush with the outer surface of said nip rollers.
Claim 5
Dependent Claim
12 words
Apparatus according to claim 3 wherein said belts are circular in cross-section.
Claim 6
Dependent Claim
51 words
Apparatus according to claim 1 wherein each of said nip rollers are mounted by means of shafts eccentric with respect to said nip rollers so that rotation of said shafts move each of said leading nip rollers toward each other and move each of said trailing nip rollers toward each other.
Claim 7
Dependent Claim
29 words
Apparatus according to claim 5 including gears mounted to said eccentric shafts and a rack gear means engaging said gears to oppositely rotate said first and second nip rollers.
Claim 8
Dependent Claim
75 words
Apparatus according to claim 6 including a pivoted knife arm mounted between said running web and said web from said spare roll, first and second shaft means mounting said knife are, actuator means for rotating said knife are in either direction, a clamp roller arm means pivotally mounted on said first and second knife arm shafts, switch means operated by said clamp roller arm means for controlling the direction of operation of said actuator means.
Claim 9
Dependent Claim
39 words
Apparatus according to claim 7 including actuator means for driving said rack gear means and switch means responsive to the movement of said rack gear means for operating said knife arm actuator means when said nip rollers move together.
Claim 10
Dependent Claim
39 words
Apparatus according to claim 8 including pivoted feeler arm means engaging said depleting web roll, and switch means operated by said feeler arm means for operating said rack driving actuator means when said depleting web roll is effectively depleted.
Claim 11
Dependent Claim
48 words
Apparatus according to claim 9 including photo electric means positioned to scan said running web for delaying the operation of said rack driving actuator until a registration mark on the running is detected thereby so that a design printed on the webs is in registration at the splice.
Claim 12
Dependent Claim
121 words
Web splicing apparatus comprising in combination a pair of rotatable spindles for holding a roll of web in use and a spare roll of web, a splicing assembly for splicing the web from the spare roll to the web in use when the roll of web in use is depleted, a brake assembly for each of said spindles, a festoon including a carriage subject to linear motion in response to a change in tension on the web, a pulley adjacent said carriage cables connecting said pulley to each of said brake assemblies, means for changing the rotational position of said pulley in response to linear movement of said carriage to adjust said brake assemblies to maintain constant tension on the web.
Claim 13
Dependent Claim
121 words
Web splicing apparatus comprising in combination a pair of rotatable spindles for holding a roll of web in use and a spare roll of web, a splicing assembly for splicing the web from the spare roll to the web in use when the roll of web in use is depleted, a brake assembly for each of said spindles, a festoon including a carriage subject to linear motion in response to a change in tension on the web, a pulley adjacent said carriage cables connecting said pulley to each of said brake assemblies, means for changing the rotational position of said pulley in response to linear movement of said carriage to adjust said brake assemblies to maintain constant tension on the web.
Claim 14
Dependent Claim
24 words
Apparatus according to claim 11 wherein said last-mentioned means includes a cam element on said carriage and a cooperating cam element on said pulley.
Claim 15
Dependent Claim
33 words
Apparatus according to claim 12 including an air cylinder biasing said carriage against the tension in the web, and a pressure regulator for maintaining the pressure in said cylinder constant at all times.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |