USRE27180E - Imprinting and obliterating apparatus - Google Patents

Imprinting and obliterating apparatus Download PDF

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Publication number
USRE27180E
USRE27180E US3619370A USRE27180E US RE27180 E USRE27180 E US RE27180E US 3619370 A US3619370 A US 3619370A US RE27180 E USRE27180 E US RE27180E
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US
United States
Prior art keywords
band
ink
obliterating
imprinting
inscription
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
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English (en)
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
Priority claimed from CH969265A external-priority patent/CH440033A/fr
Application filed filed Critical
Application granted granted Critical
Publication of USRE27180E publication Critical patent/USRE27180E/en
Expired legal-status Critical Current

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Classifications

    • 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
    • B41J31/00—Ink ribbons; Renovating or testing ink ribbons
    • B41J31/14—Renovating or testing ink ribbons
    • B41J31/16—Renovating or testing ink ribbons while fitted in the machine using the ink ribbons

Definitions

  • a printing device which ink prints with a non-dilfusible endless inking ribbon onto an endless plastic band of polyester resin,'such as polyethylene terephthalate, and then at a later station, after passing reading position, rubs the same inking ribbon over the plastic band to effect obliteration and reabsorption of the ink imprint back onto the inking ribbon.
  • polyester resin such as polyethylene terephthalate
  • This invention relates to an apparatus for visibly imprinting, especially by impact printing, an inscription base cooperating with an inking ribbon, and for successively obliterating the inscription in a re-usable way.
  • Stencil writing bases are also known, which are made of paper covered with paratfin to permit reproduction of impact imprinted inscriptions.
  • Writing bases By using such Writing bases, obliteration of the inscription can be effected by means of a suitable solvent, but a repeated re-use' of the writing base cannot be achieved in practice.
  • an imprinting and obliterating apparatus comprising: an inking ribbon having absorbed thereto a non-diffusible ink; an inscription base having at least a smooth surface not permeable by said ink; inscription means for forcing into contact said inking ribbon and said smooth surface for transferring ink to said base to make a visible impression thereon; and obliterating means consisting of an elastic member engaging a small area of said ribbon and apply ing said area under a given pressure against the part of said surface carrying said visible impressions, and means imparting an oscillatory movement to said elastic membier for rubbing said area against said part of said surface to reabsorb' said transferred ink.
  • a preferred imprinting and obliterating apparatus embodying the invention comprises an endless inking ribbon 1 passing around the guide roll 2, the driving roll 3 and the obliterator roll 4 which is made of spongy caoutchouc and is: mounted on axis 5.
  • the inking ribbon 1 contains absorbed thereto a non-diffusable ink, i.e. a non-percolating one.
  • an endless transparent band 6 of hard plastic material e.g. of a polyester such as polyethylene terephthalate, which serves as the inscription base.
  • roll 4 as well as rolls 2, 3 and 7 to 10 are arranged so that the bands 1 and 6 each show a rectilinear portion passing across two imprinting members, one of Whichis the type-carrying member 11 facing the inking ribbon 1, and the other the platen member 12. facing the band 6.
  • Control means of a conventional type and therefore not shown in the drawing are employed for activating the imprinting members 11 and 12 as well as for the driving rolls 3 and '10.
  • the driving rolls 3 and '10 both assure the transport of bands 6 and 1 in the direction of arrow A.
  • the control of the driving rolls 3 and 10 is connected to the control of the imprinting members 11 and 12 in such a way that both bands are advanced a given length during the time comprised between two following imprinting operations.
  • this band is then conveyed, as indicated by arrow B, through a light-coloured reading screen 13' which produces a clear contrast for the ink deposited from band 1.
  • Regeneration of the imprinted transparent sheet forming the band 6 is effected by placing it again into contact with the inking ribbon 1 by means of the obliterator roll 4 which presses band 6, under a given pressure, against a support member 1.4.
  • auxiliary endless band 15 made of plastic material and conveyed by roll 17 and guide roll 16 is passed across the support member 14 and band 6.
  • This auxiliary band 15 is advanced in synchronism with band 6 in order to avoid any rubbing on the outer face of the latter.
  • the axis 5 of the obliterating roll 4 is removably mounted into one of three possible positions of the bearing arm 18, thus allowing the distance between the axis of roll 4 and the support member 14 to be varied in order to properly adjust the contact pressure of roll 4 against band 6-.
  • An eccentric member 19 controlled by means not shown in the drawing co-operates with the bearing arm 18- to impart to it, and consequently to roll 4, an oscillatory, e.g. a circular movement.
  • the rubbing of band 1. against band '6 due to said vibratory movement of roll 4 causes reabsorption by band 1 of the ink deposited on band 6 and, therefore, obliteration of the visible impressions and recovery of the deposited ink.
  • the above described device permits 300 characters per minute to be easily imprinted and obliterated, when the circular movement of the obliterating roll has a frequency of about r.p.m.
  • a very satisfactory obliteration is obtained when the contact pressure of band 6 against band 1 is in the range from about 4 to 6 p.s.i.
  • the reading screen '13 is provided with grooves (not shown in the drawing) for guiding the edges of band 6, thus avoiding direct contact of the inscription with the screen and its consequent obliteration.
  • the inscription base will be a transparent one only in the case Where a reading of the inscription through the base is desired.
  • the number of theobliterating members and their rubbing movement Will depend on the desired in scription speed.
  • This rubbing movement can be other than a circular tchouc, can be formed of any sufliciently elastic material such as a usual caoutchouc, a spongy polyurethane composition, etc.
  • the inking ribbon may be given-the form of a Mobiu's' tape to allow both its faces to be utilized.
  • An imprinting and obliterating apparatus comprismg:
  • An imprinting and obliterating apparatus comprissmooth surface not permeable by said ink, i a
  • paratus which the device of the'p'resent invention-has to be (c) inscription means for forcing into contact said riband-said'surface'fbr traasrerring i'nk'tdsaid base to make visible impressions thereon, (d) an elastic member engaging a small area of said ribbon and applying said area under a given pressure against the part of said surface'carrying said visible impressions, and (:2) means for imparting an oscillatory movement to said elastic member for rubbing said area a gainst said part of said surface to 'reabsorb said transferred ink 3.
  • said inscription means comprise atype-carrying member facing said ribbon and a platen member facing said base.
  • An apparatus as claimed in claim 2 comprising a support member facing-said elastic member on the opposite. side of saidbase, an endless band engaging between said support member and said base, and means for advancing said base and said endless band in synchronism.

Landscapes

  • Impression-Transfer Materials And Handling Thereof (AREA)
US3619370 1965-07-08 1970-05-11 Imprinting and obliterating apparatus Expired USRE27180E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH969265A CH440033A (fr) 1965-07-08 1965-07-08 Dispositif pour effectuer une inscription sur un support et affacer ultérieurement cette inscription

Publications (1)

Publication Number Publication Date
USRE27180E true USRE27180E (en) 1971-09-21

Family

ID=4354610

Family Applications (1)

Application Number Title Priority Date Filing Date
US3619370 Expired USRE27180E (en) 1965-07-08 1970-05-11 Imprinting and obliterating apparatus

Country Status (4)

Country Link
US (1) USRE27180E (enrdf_load_stackoverflow)
BE (1) BE683641A (enrdf_load_stackoverflow)
DE (1) DE1561270A1 (enrdf_load_stackoverflow)
GB (1) GB1149572A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459055A (en) 1981-08-06 1984-07-10 Canon Kabushiki Kaisha Ink ribbon which makes illegible the contents of information as transferred

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113316328B (zh) * 2021-04-23 2022-05-06 厦门理工学院 一种卷对卷铜箔黑影方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459055A (en) 1981-08-06 1984-07-10 Canon Kabushiki Kaisha Ink ribbon which makes illegible the contents of information as transferred

Also Published As

Publication number Publication date
DE1561270A1 (de) 1970-04-02
GB1149572A (en) 1969-04-23
BE683641A (enrdf_load_stackoverflow) 1966-12-16

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