US2341639A - Card filing compartment - Google Patents

Card filing compartment Download PDF

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Publication number
US2341639A
US2341639A US358039A US35803940A US2341639A US 2341639 A US2341639 A US 2341639A US 358039 A US358039 A US 358039A US 35803940 A US35803940 A US 35803940A US 2341639 A US2341639 A US 2341639A
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US
United States
Prior art keywords
cards
elements
magnetic
card
tray
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
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US358039A
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English (en)
Inventor
Mathiesen Nicolaus Per
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Individual
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Individual
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Filing date
Publication date
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Publication of US2341639A publication Critical patent/US2341639A/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/20—Electromagnets; Actuators including electromagnets without armatures
    • H01F7/206—Electromagnets for lifting, handling or transporting of magnetic pieces or material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42F—SHEETS TEMPORARILY ATTACHED TOGETHER; FILING APPLIANCES; FILE CARDS; INDEXING
    • B42F17/00—Card-filing arrangements, e.g. card indexes or catalogues or filing cabinets
    • B42F17/32—Card-filing arrangements, e.g. card indexes or catalogues or filing cabinets with means for staggering cards already in the file
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K21/00—Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting
    • G06K21/02—Information retrieval from punched cards designed for manual use or handling by machine; Apparatus for handling such cards, e.g. marking or correcting in which coincidence of markings is sensed mechanically, e.g. by needle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0231—Magnetic circuits with PM for power or force generation
    • H01F7/0252—PM holding devices
    • H01F7/0257—Lifting, pick-up magnetic objects

Definitions

  • the present invention relates to arrangements for the display of the individual cards in the 1 pack of cards filed in filing trays, containers and the like, and the main idea of the invention is the use of magnetic forces for the separation of the individual cards for the display.
  • the individual cards are controlled by elements of magnetically conducting material which under the influence of magnetic forces are caused to assume a spread position, thereby effecting the desired spreading of the cards.
  • the arrangement preferably is such that the magnetic lines of force extend in the same direction through succeeding elements, and if an opening at the top of the pack of cards is provided at any desired point, for instance by a manual or mechanical separation, or by magnetic influence upon the elements, the magnetic repulsion between the elements will efiect the spreading of the elements and thereby of the cards at this point, so as to make at least the top of the cards visible, whereby the desired card is easily found.
  • the magnetic field may be produced by means of permanent magnets, magnetical material being now obtainable, having suiiiciently high permanent magnetism and stability for the present purpose.
  • the elements controlling the movement of the cards may consist of thin iron tapes or the like and may be used as separating elements between the individual cards, or be connected to the cards proper.
  • magnets being provided so as to prevent any contact or magnetic sticking between the elements and the magnets.
  • the pole pieces of the magnets may for instance be mounted outside of each side wall of the card carrying tray which should then be made of a material which is magnetically neutral, and the elements may then be arranged along the side edges of the cards and each magnet be arranged with its pole pieces one above the other. Thereby a symmetrical force is obtained, a pull of the cards in one direction thereby being avoided.
  • the magnets are arranged on both sides of the pack of cards. pole pieces of the same polarity being arranged in the same level so as to avoid stray losses by lines of force running from one side of the tray to the other for instance through the floor of the same.
  • the elements When an external magnetic field is used, it is desirable to arrange the elements on the cards themselves, it being thereby possible to make the elements very thin, below m. m. and with a breadth of a few m, m., the mechanical strength of the elements then being of no importance.
  • the elements should be made of a magnetic material practically without any remanence, in order to avoid their sticking to casual iron parts or to one another when removed from the tray.
  • Such a card may be handled in the usual manner, the thin elements being so flexible and so thin that the card for instance without difficulty may be placed in a typewriter.
  • the elements are connected to the card by being glued into the same for instance along the side edges in such a manner that the elements are covered by the paper, cardboard or the like on both sides, whereby the card will look like an ordinary card.
  • the pole pieces of the magnets When an external fleld is used, it is very suitable to make the pole pieces of the magnets in the form of rods extending along practically the full length of the pack of cards. The magnet field will then tend to keep the cards in an upright position out of which they may be brought at any desired point by external influence.
  • the simplest Way of obtaining this is to use the hand only, by sliding one finger along the pack of cards, whereby the cards are spread successively, or the pack of cards may be gripped with two fingers at two points at a small distance from one another, and drawn apart whereby the intermediary cards will spread out like a fan.
  • the pole pieces of the magnets When this is to be performed by drawer trays, the pole pieces of the magnets must be mounted on the tray itself so as to influence the elements in the withdrawn position of the tray.
  • one or both end walls of the tray are suitably arranged at an angle to the floor of the tray, as known per se.
  • Such an arrangement usually is preferable as it is simple and in most cases gives quite suincient facilitation in searching the cards. But it is also possible to effect the Sp ea at the desired point without manual influence upon the cards.
  • a device must be used which is arranged movably relatively to the tray in the direction of length of the same and which causes variations in the magnetic condition of the elements.
  • This device may for instance be mechanical so as to bring the elements out of position in an existing field, or magnetic so as to reduce or strengthen the field, or the field may contingently be produced by the device itself, th magnet being carried by the device.
  • the cards may beforehand be placed in an oblique position from which they are lifted by the magnets.
  • the simplest way is, however, to make the device reduce an existing field by erecting a magnetic shunt connection across an external field produced by means of pole pieces extending along the whole length of the magnet, it being possible by suitable forming of the shunt connection to obtain a spreading of the cards at the point at which the device is placed.
  • the device is so, arranged that it works during the movement of the tray so as to make the cards spread successively.
  • the magnets may be mounted in the compartment surrounding the tray so as to make the cards fall forward to an oblique position when the tray is withdrawn and rise when the tray is pushed in, or, if the magnets are mounted on the tray, the compartment may constitute a magnetic shunt so as to make the cards rise from an oblique position when the tray is withdrawn and fall down when the tray is pushed in.
  • any method of searching may of course be used, 1. e., the cards may be spread either by gripping the cards directly or by effecting the" relative movement between the efiecting device and the tray.
  • Fig. l is a front view of a card with the elements according to the invention incorporated-in the card.
  • Fig. 2 is a perspective view of a pack of cards, showing an embodiment wherein a source of the magnetic field is in the form of a horse shoe magnet.
  • Fig. 3 is a vertical section through a card tray with a pack of cards inserted and with a special form of the magnet system arranged in recesses in the Walls of the tray.
  • Fig. 4 is av view of the magnet system along the line A-A in Fig. 3.
  • Fig. 5 corresponds to Fig. 2, but shows separate elements between the cards and how the elements are spread in the form of a fan under the influence of the magnetic forces.
  • I is the card which may be of paper, card board or the like, and 2 the magnetic elements which may be, for instance, glued to the card or inserted in the card so that the elements are covered on both sides.
  • the elements are arranged at a small distance from each edge of the card in order to avoid a magnetic sticking between the elements and the pole pieces of the magnet system.
  • a pack of cards I each having elements 2 at each edge of the same are shown, a horse shoe magnet 3 being arranged at each side of the pack of cards in order to obtain the desired spreading of the cards.
  • the magnets 3 are so formed that the north and south poles of the same extend essentially along the pack of cards at a certain distance from each other. Consequently the magnetic lines of force will extend from the south pole of the magnet through the air gap pro-' vided between the said poles of the magnet and the said side edges of the card longitudinally of the lements to the north pole of the magnet.
  • all elements are similarly magnetized so that portions of the same lying adjacent to each other, will be subjected to repellent forces due to known magnetic laws.
  • the arrangement corresponds to that shown in Fig. 2 with the modification that the magnets 3 are provided with pole pieces 4, 5, the former being in the form of a rod extending longitudinally of the pack of cards, and the latter being in the form of a channel having the limbs of the same directed towards the pack of cards and also extending longitudinally of the pack of cards.
  • the magnet system is arranged on each side of the pack of cards in a recess in the side wall 6 of the card carrying tray.
  • a magnetic shunt piece I is slidingly mounted on the pole piece 4 first mentioned, a longitudinally extending handle or the like 8 being secured to the said shunt piece so as to enable a manually operated movement 01' the said shunt piece I.
  • a longitudinally extending handle or the like 8 being secured to the said shunt piece so as to enable a manually operated movement 01' the said shunt piece I.
  • Fig. 5 corresponds in all essentials to that shown in Fig. 2 with the diiference only that the elements 2 instead of being incorporated in the cards i are formed as separating sheets to be inserted between the individual cards.
  • a card filing device in combination, means for supporting a plurality of cards in face to face relation, a plurality of cards supported edgewise on said means, a plurality of magnetic elements associated with said cards and adapted when subjected to a common magnetic field to develop like polarities in opposed, adjacent areas, and means for subjecting a plurality of adjacent elements to a common magnetic field to cause said-adjacent cards to be spread apart by magnetic repulsion between said elements, said magnetic elements and said magnetic field means being disposed substantially symmetrically with respect to the vertical center line 01' said cards, whereby any tendency for said cards to move laterally is eliminated.
  • a card filing device in combination, means for supporting a plurality of cards in face to face relation, a plurality of cards supported edge wise on said means, a plurality of magnetic elements interposed between said cards and adapted when subjected to a common magnetic field to develop like polarities in opposed, adjacent areas, and means for subjecting a plurality of adjacent elements to a common magnetic field to ,cause said adjacent cards to be spread apart by magnetic repulsion between said elements, said magnetic elements and said magnetic field means being disposed substantially symmetrically with respect to the vertical center line of said cards, whereby any tendency for said cards to move laterally is eliminated.
  • said magnetic portions oi said cards comprising thin strips of soft iron possessing substantially no magnetic remanence, said strips being incorporated in said cards and spaced from the lateral edges thereof.
  • said magnetic field means comprising permanent magnets arranged on opposite sides of said supporting means and in such relation to said magnetic elements that the latter serve as magnetic shunts between the respective poles of said magnets but are spaced therefrom by air gaps.
  • said magnetic field means comprising a pair of magnets symmetrically arranged on opposite sides of said supporting means, and each said card having two magnetic portions, one of which is arranged adjacent each said magnet and is adapted to serve as a magnetic shunt between the poles thereof.
  • said magnetic field means comprising magnets disposed on opposite sides of said supporting means and having pole pieces extending substantially throughout the length of said supporting means, and magnetic shunt means relatively movable parallel to and between said magnets and said supporting means for shielding selected groups of said magnetic elements from said magnetic field.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Sheet Holders (AREA)
US358039A 1939-10-02 1940-09-23 Card filing compartment Expired - Lifetime US2341639A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO572951X 1939-10-02

Publications (1)

Publication Number Publication Date
US2341639A true US2341639A (en) 1944-02-15

Family

ID=19906106

Family Applications (1)

Application Number Title Priority Date Filing Date
US358039A Expired - Lifetime US2341639A (en) 1939-10-02 1940-09-23 Card filing compartment

Country Status (5)

Country Link
US (1) US2341639A (de)
DE (1) DE897995C (de)
FR (1) FR889347A (de)
GB (1) GB572951A (de)
NL (2) NL100910B (de)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474141A (en) * 1945-10-11 1949-06-21 American Can Co Method and apparatus for feeding sheets
US2541985A (en) * 1946-12-19 1951-02-20 American Can Co Sheet separating and feeding mechanism
US2656091A (en) * 1951-03-06 1953-10-20 Mathiesen Nicolaus Per Card index device
US2698212A (en) * 1953-02-26 1954-12-28 Western Electric Co Card separating and position marking device for card file systems
US2722936A (en) * 1953-09-04 1955-11-08 Mathiesen Nicolaus Per Card filing devices
US2762373A (en) * 1950-09-12 1956-09-11 Simpla Res And Mfg Co Card filing device
US2768625A (en) * 1951-07-13 1956-10-30 Manifoldia Ltd Card filing device
US2847212A (en) * 1954-09-13 1958-08-12 Donald E Stem Method and apparatus for separating magnetic sheets
US2975014A (en) * 1954-12-24 1961-03-14 Ernest A Dahl Rotary file
US3199513A (en) * 1962-11-30 1965-08-10 Mathiesen Nicolaus Per Magnetic card filing device
US3224824A (en) * 1963-09-30 1965-12-21 Milton E Remke Card filing devices
US3250274A (en) * 1963-03-22 1966-05-10 Mathiesen Nicolaus Per Card filing device
US3303848A (en) * 1963-07-03 1967-02-14 Jr Ernest A Dahl Tape file apparatus
US3333591A (en) * 1966-03-23 1967-08-01 Jr Ernest A Dahl Electromagnetic card file
US3333590A (en) * 1965-03-02 1967-08-01 Jr Ernest A Dahl Card file
US3363631A (en) * 1966-02-25 1968-01-16 Ernest A. Dahl Jr. File container
US3465460A (en) * 1968-08-07 1969-09-09 Ernest A Dahl Jr File structure
DE3050650A1 (de) * 1980-11-28 1982-11-18 Inst Fiz An Latvssr Device for oriented feeding ferromagnetic parts
US6032779A (en) * 1997-04-18 2000-03-07 Ncr Corporation Control of magnetic printed sheets
US6845976B2 (en) 2002-11-13 2005-01-25 Claire T. Martin Pallet pin sheet fanner with floating magnetic assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096329B (de) * 1954-12-23 1961-01-05 Nicolaus Mathiesen Einrichtung fuer Karteien zum Spreizen der Karteikarten durch flachstabfoermige Permanentmagneten
DE1099992B (de) * 1956-02-28 1961-02-23 Nicolaus Mathiesen Anordnung zum Bevorraten von magnetisierbaren, mittels Klebestreifen aufklebbaren Blechstuecken fuer blattfoermiges Sammelgut
DE1135862B (de) * 1956-10-29 1962-09-06 Karl Heilmann Vorrichtung zum Spreizen von Konten- oder Karteiblaettern zwischen zwei schwenkbaren Deckeln

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE488027C (de) * 1926-05-28 1929-12-18 Martin Louis Bracken Vorrichtung zum Aufspreizen gestapelter Karteikarten, Notizblaetter o. dgl. mittels zwischen die Karten eingereihter Spreizglieder
DE686173C (de) * 1936-09-28 1940-01-08 Birger Aagaard

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474141A (en) * 1945-10-11 1949-06-21 American Can Co Method and apparatus for feeding sheets
US2541985A (en) * 1946-12-19 1951-02-20 American Can Co Sheet separating and feeding mechanism
US2762373A (en) * 1950-09-12 1956-09-11 Simpla Res And Mfg Co Card filing device
US2656091A (en) * 1951-03-06 1953-10-20 Mathiesen Nicolaus Per Card index device
US2768625A (en) * 1951-07-13 1956-10-30 Manifoldia Ltd Card filing device
US2698212A (en) * 1953-02-26 1954-12-28 Western Electric Co Card separating and position marking device for card file systems
US2722936A (en) * 1953-09-04 1955-11-08 Mathiesen Nicolaus Per Card filing devices
US2847212A (en) * 1954-09-13 1958-08-12 Donald E Stem Method and apparatus for separating magnetic sheets
US2975014A (en) * 1954-12-24 1961-03-14 Ernest A Dahl Rotary file
US3199513A (en) * 1962-11-30 1965-08-10 Mathiesen Nicolaus Per Magnetic card filing device
US3250274A (en) * 1963-03-22 1966-05-10 Mathiesen Nicolaus Per Card filing device
US3303848A (en) * 1963-07-03 1967-02-14 Jr Ernest A Dahl Tape file apparatus
US3224824A (en) * 1963-09-30 1965-12-21 Milton E Remke Card filing devices
US3333590A (en) * 1965-03-02 1967-08-01 Jr Ernest A Dahl Card file
US3363631A (en) * 1966-02-25 1968-01-16 Ernest A. Dahl Jr. File container
US3333591A (en) * 1966-03-23 1967-08-01 Jr Ernest A Dahl Electromagnetic card file
US3465460A (en) * 1968-08-07 1969-09-09 Ernest A Dahl Jr File structure
DE3050650A1 (de) * 1980-11-28 1982-11-18 Inst Fiz An Latvssr Device for oriented feeding ferromagnetic parts
US6032779A (en) * 1997-04-18 2000-03-07 Ncr Corporation Control of magnetic printed sheets
US6845976B2 (en) 2002-11-13 2005-01-25 Claire T. Martin Pallet pin sheet fanner with floating magnetic assembly

Also Published As

Publication number Publication date
GB572951A (en) 1945-10-31
NL55091C (de) 1943-07-16
DE897995C (de) 1953-11-26
FR889347A (fr) 1944-01-06
NL100910B (de) 1943-03-15

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