US3611430A - Recording pen - Google Patents

Recording pen Download PDF

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Publication number
US3611430A
US3611430A US848288A US3611430DA US3611430A US 3611430 A US3611430 A US 3611430A US 848288 A US848288 A US 848288A US 3611430D A US3611430D A US 3611430DA US 3611430 A US3611430 A US 3611430A
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US
United States
Prior art keywords
stylus
tubular element
pen
air channel
receiving section
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 - Lifetime
Application number
US848288A
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English (en)
Inventor
George Watchorn
James John Hurley
Basil Parmin Thornber-Rosevere
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.)
CAMBRIDGE IND INSTR Ltd
CAMBRIDGE INDUSTRIAL INSTRUMENTS Ltd
Original Assignee
CAMBRIDGE IND INSTR Ltd
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.)
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Publication date
Application filed by CAMBRIDGE IND INSTR Ltd filed Critical CAMBRIDGE IND INSTR Ltd
Application granted granted Critical
Publication of US3611430A publication Critical patent/US3611430A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
    • G01D15/16—Recording elements transferring recording material, e.g. ink, to the recording surface

Definitions

  • Inking pens for this use should meet certain requirements.
  • the pen should be capable of producing a fine line and should not require substantial pressure to be applied to the surface of the chart, since this pressure must be obtained from the pen of the recorder.
  • the pen should hold sufficient ink to last for a substantial period of time without attention, whether used or not, and so the ink should neither blot nor run nor should it readily dry on the pen. Replacement of the pen when necessary should be carried out easily and it should be possible to replace the pen in a predetermined position, as otherwise the accuracy of the recording may be affected.
  • the present invention is concerned with a design of pen for a chart recorder which is improved in various respects over the pens at present in use.
  • a pen for the use with recording apparatus comprising:
  • FIG. 1 is a partly diagrammatic cross-sectional view through a twin-pen chart recorder according to the invention
  • FIG. 2 is a front elevational view of the arrangement shown in FIG. 1;
  • FIG. 3 is a cross-sectional view of the reservoir unit of FIG. I, with the pen fiber removed,- and taken on the line 3-3 of FIG. 1;
  • FIG. 4 is a front elevational view of a pen in accordance with another embodiment of the invention, and analogous to FIG. 2;
  • FIG. 5 is a partly diagrammatic cross-sectional view through the pen shown in FIG. 4, and analogous to FIG. 1;
  • FIG. 6 is a rear elevational view of the pen shown in FIGS. 5 and 6;
  • FIG. 7 is an underside view of the pen shown in FIG. 4 to 6;
  • FIG. 8 is a silhouette of the pen shown in FIGS. 4 to 7 and corresponding to FIG. 5;
  • FIG. 9 is a view in the direction of the arrow A in FIG. 5.
  • FIG. 10 is a cross section view on the line XX in FIG. 5.
  • the recorder is assumed to be of the chart type using a paper disc chart 10 which can be clamped against a support plate 11 and rotated, about an axis not shown, at a predetermined speed.
  • Recording marks are drawn on the paper chart by means of pens carried by two recording arms 12 and 13, carried on suitable pivots, also not shown, so that the recorded variable is recorded as the position of the pen varies along an arc such as 14.
  • the second pen is used and since the two pens cannot occupy the same radial position along the length of the arms, the second pen follows an arc such as 15.
  • the two pen arms 12 and 13 are made in the conventional manner of thin light material, conveniently metal, and the pen mechanisms are attached, preferably frictionally to the ends of the arms.
  • the two pens are generally similar in construction and therefore one only will be described in detail.
  • pen assembly attached to arm 12 consists of a small plastic container 16, preferably of rectangular cross section as indicated in FIG. 3, the front face of the container being formed with a tapering wedge-shaped groove at 17, by means of which it can be held frictionally on the end of arm 12.
  • the container 16 At the lower end of the container 16 there is fonned an opening 18, forming a receptacle for a fiber rod 19, shaped to a conical tip at 20.
  • the tip 20 forms the writing point of the pen and in use engages the paper chart 10.
  • the rod 19 is composed of closely compacted fibers of material which can, for
  • the container 16 is filled with a suitable ink, as at 21 and the top of the container, when so filled, is closed by a cap 22.
  • the cap provides an airtight closure for the container.
  • the container Above the hole 18, the container is formed with a second, air-bleed opening 23, terminating at its inner end in a small hole 24.
  • the pen In use, the pen is used with the arm 12 in the vertical position, as shown in FIG. 1 and the ink 21 will feed by gravity to the lower part of the pen assembly, and by the capillary action of the fibers forming the rod 19 will be supplied to the tip 20 in known manner.
  • a pen of this type has the advantage that the writing tip 20 may be made fine, so that only a narrow line will be drawn on chart l0 and in addition, provided that the fiber is adequately maintained with ink, only a light contact pressure is required.
  • the ink 21 there is used for the ink 21 a liquid which has a low vapor pressure so that the loss by evaporation from the fiber 19 is minimized.
  • a liquid which has a low vapor pressure so that the loss by evaporation from the fiber 19 is minimized.
  • the rod By suitable choice of ink, and by maintaining ink at the lower part of the fiber rod I9 it can be arranged that the rod remains appropriately moist with ink and does not dry out in use.
  • means are provided for limiting the head of ink which will exist at the inner end of the fiber rod 19.
  • a device such as that described has been found to give much longer satisfactory service than is possible by corresponding devices of which we are aware. It is also of advantage that with the fiber pen, a legible mark will continue to be made by the pen after the normal exhaustion of the ink supply.
  • the second pen arm 13 is provided with an assembly which is similar to that described except that the fiber rod 26 used with this pen is shorter, so that the two pens can be mounted, as shown in FIG. I, to write on the common chart 10.
  • FIGS. 4 to 10 is a modification of that shown in FIGS. I to 3, and is intended to be inserted in a tube closed at the remote end (not shown) so that its body and said tube constitute a reservoir and are then mounted on an arm equivalent to 12 or I3 (FIG. 1). Parts which are similar to those appearing in the above-described embodiment of the invention are given the same reference numerals.
  • This embodifrom the opening 18 for the fiber rod 19, the air-bleed opening is an enlargement of the opening for the fiber rod. This may best be seen in FIG. 9 where the opening 18 for the fiber rod is shown to be circular in cross section. This is enlarged by a further somewhat smaller diameter tubular opening 24 which intersects opening 18.
  • a further tubular opening 23 of the same diameter as opening 18 intersects opening 24.
  • the opening 24 penetrates to the reservoir whereas opening 23 terminates at the wall of the reservoir 27 without penetrating into it.
  • the three openings 18, 24, 23 are of diameters respectively 2.0, L5, and 2.0 mm. and their centers are separated by distances of 1.0 mm. respectively.
  • the body of the pen is a symmetrical pentagon in cross section as may be seen in FIG. 6 and a pair of grooves are provided along the top to form a wedge-shaped portion 28 for attachment to the arm supporting the pen.
  • a fiber rod is inserted in the tubular hole 18 and as stated the device as shown in the FIGS. 4 to is inserted into a tube containing ink and closed at the remote end. It is mounted with the axis of the reservoir vertical. its operation is exactly the same as that of the device shown in FIGS. 1 to 3.
  • a suitable ink for the pen is that available commercially as a nondrying recording ink, which is slow to evaporate, has nonspreading qualities and is color fast.
  • the pen assemblies are simple to manufacture and can be molded in plastic material, so that they can be expendable after use.
  • Means may be provided, consisting of detent means between the pen assembly and the arm, to ensure that the pen tip such as 20 assumes the direct radial position on the arm such as 12.
  • a pen for use with recording apparatus comprising a body member including a tubular element defining an elongated enclosed inner cavity adapted for mounting in a generally vertical position, the upper end of said tubular element being closed to form an ink-retaining reservoir, and a stylus-receiving section formed at the lower end of said tubular element and having an open-ended inner chamber which opens at an inner end into said enclosed inner cavity, said stylus-receiving section being inclined upwardly away from the lower end of said tubular element, an enclosed open-ended air channel for the admission of air to said tubular element having an inner end which opens into said enclosed inner cavity at a point above but adjacent to the inner end of said stylus-receiving section inner chamber, said air channel being inclined upwardly away from said tubular element, and an elongated stylus received in the inner chamber of said stylus-receiving section and extending outwardly therefrom; away from said tubular element to a remote end positioned at a point above the point at which said air channel opens into said enclosed inner
  • a pen according to claim 1 wherein said air channel is formed in said stylus-receiving section above the open-ended inner chamber thereof, said air channel being formed to provide a restricted opening into the enclosed inner cavity of said tubular element.
  • pen-mounting means are formed on said tubular element, said mounting means including a longitudinally extending wedge-shape channel formed in the outer surface of said tubular element.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Pens And Brushes (AREA)
  • Recording Measured Values (AREA)
US848288A 1968-08-08 1969-08-07 Recording pen Expired - Lifetime US3611430A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37959/68A GB1270949A (en) 1968-08-08 1968-08-08 Improvements in and relating to pens for chart recorders

Publications (1)

Publication Number Publication Date
US3611430A true US3611430A (en) 1971-10-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US848288A Expired - Lifetime US3611430A (en) 1968-08-08 1969-08-07 Recording pen

Country Status (3)

Country Link
US (1) US3611430A (de)
DE (1) DE6930862U (de)
GB (1) GB1270949A (de)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3778840A (en) * 1971-09-14 1973-12-11 Honeywell Inc Disposable fiber tip marker
US3893130A (en) * 1971-03-10 1975-07-01 Northern Illinois Gas Co Recorder pen
US3934255A (en) * 1973-08-30 1976-01-20 Sanford Research Company Recorder pen
US3983569A (en) * 1975-01-10 1976-09-28 Graphic Controls Corporation Instrument pen with integral pen arm attachment means
USD244025S (en) * 1975-06-09 1977-04-12 Kingmann-White, Inc. Disposable recording pen
US4023186A (en) * 1975-08-05 1977-05-10 Graphic Controls Corporation Disposable marker and holder
US4024547A (en) * 1975-08-13 1977-05-17 Kingmann-White, Inc. Instrument recording pen
US4048640A (en) * 1976-11-15 1977-09-13 Tejas Instrument Engineers, Inc. Ink pen cartridge and mounting arm for a recording instrument
US4100549A (en) * 1975-03-03 1978-07-11 Graphic Controls Corporation Disposable marker
US4337471A (en) * 1980-09-29 1982-06-29 Graphic Controls Corporation Disposable markers adapted for constant width and close proximity tracing
US4633275A (en) * 1983-09-29 1986-12-30 Graphic Controls Corporation Means for mounting a pen on a chart recorder
US5557301A (en) * 1991-05-17 1996-09-17 D'aviau De Piolant; Jean-Louis Graphic drawing system
US6100877A (en) * 1998-05-14 2000-08-08 Virtual Ink, Corp. Method for calibrating a transcription system
US6111565A (en) * 1998-05-14 2000-08-29 Virtual Ink Corp. Stylus for use with transcription system
US6124847A (en) * 1998-05-14 2000-09-26 Virtual Ink, Corp. Collapsible detector assembly
US6147681A (en) * 1998-05-14 2000-11-14 Virtual Ink, Corp. Detector for use in a transcription system
US6177927B1 (en) 1998-05-14 2001-01-23 Virtual Ink Corp. Transcription system kit
US6191778B1 (en) 1998-05-14 2001-02-20 Virtual Ink Corp. Transcription system kit for forming composite images
US6211863B1 (en) 1998-05-14 2001-04-03 Virtual Ink. Corp. Method and software for enabling use of transcription system as a mouse
US6310615B1 (en) 1998-05-14 2001-10-30 Virtual Ink Corporation Dual mode eraser
US20020054026A1 (en) * 2000-04-17 2002-05-09 Bradley Stevenson Synchronized transmission of recorded writing data with audio
EP1997644A2 (de) 2007-05-29 2008-12-03 Xerox Corporation Fluoreszente nicht überlappende Punktdesignmuster für Substrate zur Einbettung von Informationen in Druckdokumente
EP1997642A2 (de) 2007-05-29 2008-12-03 Xerox Corporation Verfahren für fluoreszente nicht überlappende Punktdesignmuster für Substrate zur Einbettung von Informationen in Druckdokumente
US20080302263A1 (en) * 2007-06-05 2008-12-11 Xerox Corporation Infrared encoding of security elements using standard xerographic materials
US20080305444A1 (en) * 2007-06-05 2008-12-11 Xerox Corporation Infrared encoding of security elements using standard xerographic materials with distraction patterns
US20090122349A1 (en) * 2007-11-09 2009-05-14 Xerox Corporation Fluorescence-based correlation mark for enhanced security in printed documents

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2311280A1 (fr) * 1975-05-12 1976-12-10 Sanford Res Co Style pour instrument d'enregistrement

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893130A (en) * 1971-03-10 1975-07-01 Northern Illinois Gas Co Recorder pen
US3778840A (en) * 1971-09-14 1973-12-11 Honeywell Inc Disposable fiber tip marker
US3934255A (en) * 1973-08-30 1976-01-20 Sanford Research Company Recorder pen
US3983569A (en) * 1975-01-10 1976-09-28 Graphic Controls Corporation Instrument pen with integral pen arm attachment means
US4100549A (en) * 1975-03-03 1978-07-11 Graphic Controls Corporation Disposable marker
USD244025S (en) * 1975-06-09 1977-04-12 Kingmann-White, Inc. Disposable recording pen
US4023186A (en) * 1975-08-05 1977-05-10 Graphic Controls Corporation Disposable marker and holder
US4024547A (en) * 1975-08-13 1977-05-17 Kingmann-White, Inc. Instrument recording pen
US4048640A (en) * 1976-11-15 1977-09-13 Tejas Instrument Engineers, Inc. Ink pen cartridge and mounting arm for a recording instrument
US4337471A (en) * 1980-09-29 1982-06-29 Graphic Controls Corporation Disposable markers adapted for constant width and close proximity tracing
US4633275A (en) * 1983-09-29 1986-12-30 Graphic Controls Corporation Means for mounting a pen on a chart recorder
US5557301A (en) * 1991-05-17 1996-09-17 D'aviau De Piolant; Jean-Louis Graphic drawing system
US6124847A (en) * 1998-05-14 2000-09-26 Virtual Ink, Corp. Collapsible detector assembly
US6111565A (en) * 1998-05-14 2000-08-29 Virtual Ink Corp. Stylus for use with transcription system
US6100877A (en) * 1998-05-14 2000-08-08 Virtual Ink, Corp. Method for calibrating a transcription system
US6147681A (en) * 1998-05-14 2000-11-14 Virtual Ink, Corp. Detector for use in a transcription system
US6177927B1 (en) 1998-05-14 2001-01-23 Virtual Ink Corp. Transcription system kit
US6191778B1 (en) 1998-05-14 2001-02-20 Virtual Ink Corp. Transcription system kit for forming composite images
US6211863B1 (en) 1998-05-14 2001-04-03 Virtual Ink. Corp. Method and software for enabling use of transcription system as a mouse
US6310615B1 (en) 1998-05-14 2001-10-30 Virtual Ink Corporation Dual mode eraser
US20020054026A1 (en) * 2000-04-17 2002-05-09 Bradley Stevenson Synchronized transmission of recorded writing data with audio
EP1997644A2 (de) 2007-05-29 2008-12-03 Xerox Corporation Fluoreszente nicht überlappende Punktdesignmuster für Substrate zur Einbettung von Informationen in Druckdokumente
EP1997642A2 (de) 2007-05-29 2008-12-03 Xerox Corporation Verfahren für fluoreszente nicht überlappende Punktdesignmuster für Substrate zur Einbettung von Informationen in Druckdokumente
US20080297851A1 (en) * 2007-05-29 2008-12-04 Xerox Corporation Methodology for substrate fluorescent non-overlapping dot design patterns for embedding information in printed documents
US20080302263A1 (en) * 2007-06-05 2008-12-11 Xerox Corporation Infrared encoding of security elements using standard xerographic materials
US20080305444A1 (en) * 2007-06-05 2008-12-11 Xerox Corporation Infrared encoding of security elements using standard xerographic materials with distraction patterns
US8460781B2 (en) 2007-06-05 2013-06-11 Xerox Corporation Infrared encoding of security elements using standard xerographic materials
US20090122349A1 (en) * 2007-11-09 2009-05-14 Xerox Corporation Fluorescence-based correlation mark for enhanced security in printed documents
US8009329B2 (en) * 2007-11-09 2011-08-30 Xerox Corporation Fluorescence-based correlation mark for enhanced security in printed documents

Also Published As

Publication number Publication date
GB1270949A (en) 1972-04-19
DE6930862U (de) 1969-12-04

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