GB1396156A - Web clamping apparatus - Google Patents

Web clamping apparatus

Info

Publication number
GB1396156A
GB1396156A GB2660072A GB2660072A GB1396156A GB 1396156 A GB1396156 A GB 1396156A GB 2660072 A GB2660072 A GB 2660072A GB 2660072 A GB2660072 A GB 2660072A GB 1396156 A GB1396156 A GB 1396156A
Authority
GB
United Kingdom
Prior art keywords
coil
plate
web
coil structure
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2660072A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Printing Systems America Inc
Original Assignee
Ricoh Printing Systems America Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Printing Systems America Inc filed Critical Ricoh Printing Systems America Inc
Publication of GB1396156A publication Critical patent/GB1396156A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/16—Means for tensioning or winding the web

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

1396156 Feeding webs DATA PRODUCTS CORP 7 June 1972 [18 June 1971] 26600/72 Heading B8R [Also in Division F2] A device for clamping web material 20 to limit or prevent its movement along a feed path includes a substantially planar electrical coil structure 42 including a coil (54), Fig. 2 (not shown), whose axis extends substantially perpendicularly to the plane of the structure, the latter being supported, e.g. by leaf springs 64, 66, for movement in a direction perpendicular to said path, a pressure plate 70, means for producing a magnetic field, e.g. permanent magnets 74, 76, 78, 80, and means to produce a current in the coil structure to move it towards the plate 70 to clamp the web and decelerate the structure to substantially zero velocity on its engagement with the plate 70. The device may be used upstream or downstream of a line printer 12, the web being fed by a pin belt 28 into a registered position before being clamped. A sensor coil 180 with its axis substantially parallel to the plane of the structure, may be fixed to the coil structure to produce a feed back signal for controlling acceleration and deceleration of the coil structure at the beginning and end of each clamp-release movement. Additionally it may control the clamping force which is dependent on a bias current. The plate 70 may be fixed or movable.
GB2660072A 1971-06-18 1972-06-07 Web clamping apparatus Expired GB1396156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00154573A US3802546A (en) 1971-06-18 1971-06-18 Web clamping apparatus

Publications (1)

Publication Number Publication Date
GB1396156A true GB1396156A (en) 1975-06-04

Family

ID=22551863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2660072A Expired GB1396156A (en) 1971-06-18 1972-06-07 Web clamping apparatus

Country Status (7)

Country Link
US (1) US3802546A (en)
CA (1) CA959705A (en)
DE (1) DE2229474C3 (en)
FR (1) FR2142366A5 (en)
GB (1) GB1396156A (en)
IT (1) IT956682B (en)
NL (1) NL170469C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074044A1 (en) * 1981-09-05 1983-03-16 Weitmann & Konrad GmbH & Co. KG Sheet brake
EP0099178A1 (en) * 1982-06-18 1984-01-25 Polaroid Corporation Apparatus for clamping insulative material

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4400106A (en) * 1974-11-29 1983-08-23 Patology Press, Ltd. Typesetting apparatus
DE2637402C3 (en) * 1976-08-19 1980-11-27 Nixdorf Computer Ag, 4790 Paderborn Device for the regular transport of continuous forms
US4098389A (en) * 1976-08-20 1978-07-04 Bunker Ramo Corporation Three position platen control mechanism
US4458227A (en) * 1982-04-12 1984-07-03 Polaroid Corporation Electromagnetic actuators
US4673306A (en) * 1984-07-11 1987-06-16 Dataproducts Corporation Magnetic paper clamp
US5040911A (en) * 1988-08-10 1991-08-20 Royden C. Sanders, Jr. Paper advancing system for high speed printers
US4896980A (en) * 1988-08-10 1990-01-30 Royden C. Sanders, Jr. Paper advancing system for high speed printers
EP0961393A1 (en) 1998-05-28 1999-12-01 Sulzer Rüti Ag Linear motor for textile machine, device with a linear motor and Loom with this device
CA2397400A1 (en) * 2002-06-26 2003-12-26 Seppo Ilmari Leppanen Method and apparatus for clamping a printing media
US8292421B2 (en) * 2009-02-19 2012-10-23 Xerox Corporation Media hold-down device using tensioned thin guides
US11305563B1 (en) 2020-12-08 2022-04-19 Electronics For Imaging, Inc. Apparatus to flatten a substrate along a print path of a printer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172352A (en) * 1963-05-13 1965-03-09 Data Products Corp Printing hammer assembly
US3172353A (en) * 1963-06-17 1965-03-09 Data Products Corp Variable force hammer high speed printer
US3282203A (en) * 1964-04-16 1966-11-01 Burroughs Corp Magnetically operated print hammers in high speed printers
US3285166A (en) * 1964-12-18 1966-11-15 Data Products Corp High speed print hammer and bar magnet means
US3279362A (en) * 1965-06-11 1966-10-18 Data Products Corp Printing hammer
US3323700A (en) * 1965-06-22 1967-06-06 Borg Warner Web driving system with driving, braking and motion sensing units adjacent each margin of the web
US3452853A (en) * 1966-10-10 1969-07-01 Data Products Corp Paper drive system
US3550745A (en) * 1967-02-08 1970-12-29 Gen Electric Information Syste Paper arresting device for high speed printers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074044A1 (en) * 1981-09-05 1983-03-16 Weitmann & Konrad GmbH & Co. KG Sheet brake
EP0099178A1 (en) * 1982-06-18 1984-01-25 Polaroid Corporation Apparatus for clamping insulative material

Also Published As

Publication number Publication date
CA959705A (en) 1974-12-24
US3802546A (en) 1974-04-09
IT956682B (en) 1973-10-10
NL170469C (en) 1982-11-01
DE2229474B2 (en) 1975-03-06
FR2142366A5 (en) 1973-01-26
DE2229474A1 (en) 1972-12-21
NL170469B (en) 1982-06-01
NL7207707A (en) 1972-12-20
DE2229474C3 (en) 1975-10-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee