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Publication numberUS2673404 A
Publication typeGrant
Publication dateMar 30, 1954
Filing dateNov 6, 1952
Priority dateJan 2, 1947
Publication numberUS 2673404 A, US 2673404A, US-A-2673404, US2673404 A, US2673404A
InventorsEdmund Abrahamson
Original AssigneeEdmund Abrahamson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Magnetic game apparatus
US 2673404 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

March 30, 1 5 E. ABRAHAMSON MAGNETIC GAME APPARATUS Original Filed Jan. 2, 1947 INVENTOR EDMUND ABRAHAMSON MW,

PATENT AGENT Patented Mar. 30, 1954;

MAGNETIC GAME APPARATUS Edmund Abrahamson, Baldwin, N.' Y;

Original application January. 2, 1947, Serial No. 719,661, new PatentNo. 2,619,349, dated November 25, 1952. Divided and November 6, 1952, Serial No.

14 Claims. 1

a division of my copending 19,661, filed January 2, 1947, 2,619,349, issued November 25, 1952, and relates to improvements in magnetic apparatus of the type employable in the construction and operation of games, amusement, educational and display devices, or the like, the primary object of the invention being to provide devices involving magnetizable elements which become endowed with or produce visible or audible activity, upon the establishment, either momentary or prolonged, of a magnetic circuit between such elements and magnet means located in a supporting surface over which the devices are moved, such as a game board or other platform or base. In contrast to the apparatus according to my afore-mentioned copending application, employing electromagnets as magnetizing means, permanent magnets are used as magnetizing means in the device according to the present invention.

Another important object of this invention is to provide a novel arrangement of magnetically cooperating g'ameboard and game pieces, in which the gameboard is provided with iron' pieces in either fixed or changeable locations, and/or with changeable game charts or cards overlying and concealing these iron pieces and adapted to be changed to prevent the players memorizing the locations of the iron pieces and being guided thereby in subsequently moving the game pieces over the gameboard.

Another important object of this invention is to provide'game pieces, or exhibitors of the character indicated above which are self-energizing, that is, which contain batteries for the energization of their visible-and/or audible components, such as lamps, buzzers, and the like; and whose magnetizable elements control switches for closing and/or opening the circuits between the batteries and said components.

Other important. objects and advantageous features of this invention will be apparent from the following description and the drawing appended thereto, wherein merely for purposes of illustration, specific but non-limiting embodiments of this invention are set forth.

In the drawing:

Fig. 1 is a transverse vertical section through This application is application, Ser. No. 7 now U. S. Patent No.

a game piece, according to the present invention, r

and through the inventive gameboard with which this game piece is associated, the game piecehaving a permanent magnet and the gaineboard be ing equipped with concealed soft iron pieces for actuation of the game piece;

this application 319,015

Fig. 2'is a perspective illustration of a modified form of the gameboard associated with the game piece of'Fig. 1, part of the gameboard being shown in transverse vertical section;

Fig. 3 is a transverse vertical section, on an.

enlarged scale, taken through a magnetically operated switch, similar to that employed in the game piece of Figure 1, adapted to be used in connectionwith the gameboard shown in Figure 4;

Fig. 4 is a top perspective view of a questionand-answer type of gameboard in accordance with the present invention, in the operation of which the magnetically operated switch of Figure 3 is selectively moved over the surface of the gameboard, containing concealed soft iron pieces for actuating the'switch.

Referring to the drawing in detail, and first to Fig. 1, thereof, numeral It generally designates a platform, base or gameboard of suitable material, which may be provided with a plurality of pieces or discs I l of soft iron which are concealed in said platform, base or gameboard.

The game piece or exhibitor A placed on the gameboard l 9 and adapted to be actuated by registry with any of the afore-mentioned softiron pieces I 5 comprises an insulating casing or housing including a lower part l2, an upper part l3, a lamp support block I4 holding a bulb l5 and a transparent dome l'li, an upper spring contact l1 and its connection l8'with a bulb socket l9, and its rod 20 presenting'a contact point at its lower end. Also, an upper terminal 2| of a battery 22 engages a bulb contact-23. Other than this, the battery case engages a conductor strip 24, on the upper side of a partition 25 and is connected at 25 to a conductive strip 29 on the underside of said partition.

The contact point 26 is engaged by a spring finger 29 anchored in contact with a contact bracket 33 anchored in the bottom wall 3| of the lower casing part l2 near the contact point 28 at the opposite side of said lower part from a ver-. tically elongated'post or spacer 32, to the upper end of which is fastened one end of a generally horizontal spring armature 33 having on its free end a depending contact point 34 for engagement with the bracket A spiral spring connector 35 connects the conductive strip 21 with the armature 33. The armature 33 and its post or spacer 32 are preferably of soft iron so as to eX- hibit a practical minimum of residual magnetism.

Positioned beneath and closeto the underside of the free endofthe armature 33 is a vertical bar permanent magnet core 36, which like the post or spacer 32, extends through to substantially fiush with the underside of the lower casing part 12. The permanent magnet 36 is arranged, for example, with one (north) pole up and its other (south) pole down. When the device is registered with one of the soft iron pieces or discs H in the game board or other platform 10, the gap in the magnetic circuit between the lower ends of the soft iron post 32 and the permanent magnet 36 will be practically closed. This results in an increase of the magnetic field strength acting on the armature 33 which will be attracted by the magnet 36, i. e., said armature swings downwardly and closes the battery lamp bulb circuit and lights the lamp bulb l5.

Instead of the soft iron pieces l 1, small permanent magnets may be provided in the gameboard or other platform. When the game piece or exhibitor A is registered with one of these permanent magnet pieces, the armature 33 will be attracted by the magnet 36, only if the lower pole of the permanent magnet 36 in the game piece or exhibitor registers with a pole of opposite polarity of said permanent magnet piece in the gameboard or other platform, because in other positions of the game piece or exhibitor A with respect to said permanent magnet piece in the gameboard, the magnetic field acting on the armature 33 is decreased or changed in direction so that said armature will be repelled rather than attracted by the permanent magnet 36. In other words, the game piece or exhibitor A has to be placed on each of th permanent magnets in the gameboard or other platform in one definite position to actuate the switch closing the circuit of the lamp bulb l5, so that, in case of a game, the chances are made additionally dependent upon the relative positions of the game piece and the significant areas. The exhibitor A may also be used as indicator means to indicate the direction of magnetic field lines or the polarity of a mag netic field pole.

If permanent magnets are provided in the gameboard, the permanent magnet 36 in the game piece A may be replaced by a soft iron core.

The game board in Figure 1 comprises three layers of wood, cardboard, plastic or other suitable material, i. e., two outer layers 46 and 4|, and an intermediate layer 43, the latter being provided with a plurality of apertures into which the soft iron or permanent magnet pieces II are inserted. The three layers are glued together or combined to an integral structure in any other manner. The outer surfaces of the two outer layers may be printed with circles or other designs to indicate the playin positions of the game pieces, so that both sides of the structure can be used as game surface. a

A modification of the gameboard structure shown in Figure l is illustrated in Figure 2. The two outer layers t6 and ii in Figure 2 are the same as in Figure 1, while the intermediate layer 44 consists of an iron or steel sheet in which a large number of perforations or cut-outs 653 of preferably circular shape is provided. The three layers are combined to a unitary structure in the same manner as in the gameboard in Fig. l. The gameboard of Figure 2 has active or significant areas all over the surface, except at places where the perforations or cut-outs are provided in the intermediate sheet.

In Figures 3 and 4 is shown a question-andanswer game piece adaptation B of the invention involving a suitable rearrangement of the components of form A in relation to a gameboard 46, having soft iron discs or plates 41 inserted in the surface thereof, in positions corresponding to correct answers to questions appearing on the replaceable chart or card 38. This rearrangement includes provision of a lamp bulb 69 in a position at the head or other desirable location of the gameboard 46, the installation of a battery 56 within the gameboard 46, with the remainder of the game piece A changed to mount the permanent magnet core 36, the soft iron post 32, the soft iron armature 33, the contact point 34 and the bracket 36 in an insulated casing or housing consisting of a disc 5| on which is threaded a tubular upper part 52, whose upper end is closed by a cap 53 having a neck 54 through which extends a flexible conduit 55, containing the necessary leads 56 and 51 to the armature 33 and bracket 30, and connected to the battery 50 and the lamp bulb 4d. The game piece B being freely movable by a player over the surface of the card 68 on the question-and-answer board 46, will, if registered with one of the soft iron discs or plates 4'! underlying a correct answer area, produce lighting of the lamp bulb d9 thereby visually indicating the correctnes of the players response to a given question. The questions appearing on the replaceable chart or card 48 may call for answering yes or no. Consequently two answer areas, marked yes and no, respectively, would have to be provided for each question printed on said chart or card 48 adjacent said areas, for example, therebetween; If, for example, the question between one yes and one no areas reads Did Alexander Graham Bell invent the telephone? the correct answer is yes, and therefore the player is expected to place the game piece B on the adjacent yes area to answer this question correctly. In this case, one of the soft iron discs or plates is concealed under the said yes area and consequently the game piece B becomes energized and the lamp bulb 46 lights up to indicate the correctness of the answer. If the player should answer the question incorrectly and place the same piece B on the no area having no soft iron disc or plate in the present case, no energization of the game piece B takes place and the lamp 49 does not light up, indicating that the answer was incorrect.

In order to prevent the players from memorizing the positions of the iron pieces with reference to the different significant areas of any game card or chart 48 and to provide games of varied nature and procedure, a plurality-of interchangeable cards or charts may be provided, which can be exchanged at will upon the gameboard 46 or altered in relative position thereon by removably placing them on projecting pins 6| mounted on the corners of the gameboard 46 and adapted to enter in correspondingly located holes in said cards or charts. For the same purpose the soft iron ieces 4'! may be changed in position by placing them in different cavities provided in the gameboard 46 (see Fig. 3).

As in the gameboard I6 of Figure l, permanent ma -nets may be provided in the gameboard 46 of Figures 3 and 4 rather than soft ircn pieces 4'1. In this case, the permanent magnet 36, in the game piece B (Fig. 3) may be replaced by a soft iron core.

It will be understood that the arrangement of Fi ures 1 and. 2 could. also be devised to permit questicmaninswer operation of the yes and no type and that forms of gameboards or platforms and/or game pieces or exhibitors other than those disclosedherein. for example, game pieces or exhibitors with audible signals, such as buzzers or bells replacing the light bulbs in the battery circuits, could be employed in either arrangement, without departure from the present invention.

I claim:

1. Magnetically operated game apparatus comprising a gameboard including a playing surface having significant areas and non-significant areas, some of which significant areas have magnetic means positioned therein, and at least one game piece selectively movable over said surface with reference to said areas, said game piece comprising a casing, magnetizable means in said casing, an electric contact device in said casing, operatively associated with said magnetizable means, an electric circuit connected to a source of electric current, said electric circuit including an electric signal element and said electric contact device, said magnetizable means being constructed and arranged to be actuated by any of said magnetic means to act on said electric contact device and thereby operate said electric signal via said electric circuit, when said game piece is moved on said gameboard to a position of substantial registry with a significant area having such magnetic means.

2. Magnetically operated game apparatus ac cording to claim 1, wherein a permanent magnet is mounted in said game piece casing to act on said magnetizable means when said game iece is moved on said gameboard to a position of substantial registry with any of said significant areas having said magnetic means.

3. Magnetically operated game apparatus according to claim 1, wherein said magnetic means positioned in said gameboard at said significant areas are pieces of soft iron.

4. Magnetically operated game apparatus according to claim 1, wherein said magnetic means positioned in said gameboard at said significant areas are permanent magnets.

5. Magnetically operated game apparatus according to claim 1, wherein said magnetic means at said non-significant areas is a piece of soft iron extending substantially over the whole playing surface and being formed with cut-outs at said significant areas.

6. Magnetically operated game apparatus according to claim 1, wherein a chart indiscriminately indicating the position of said significant and non-significant areas is placed on said gameboard and wherein means are mounted on said gameboard to exchangeably hold said chart on said gameboard.

7. Magnetically operated game apparatus according to claim 6, wherein said means to exchangeably hold said chart on said gameboard are pins mounted on said gameboard close to its edge, said chart being formed with holes adapted to be engaged by said pins.

8. Magnetically operated game apparatus comprising a gameboard including a playing surface having significant areas and non-significant areas, some of which significant areas have magnetic means positioned therein, and at least one game piece selectively movable over said surface with reference to said areas, said game piece comprising a casing, a signal element and magnetizable means in said casing for operating said signal element, said mag'netizable means being constructed and arranged to be actuated by any of said magnetic means when said gamepiece is moved on the gameboard to-a position'of' sub -l stantial registry with a significant area having such magnetic means, said signal element comprising an electric alarm means, said magnetizable means comprising a normally open magnetically operable switch in said casing arranged to be closed by the magnetic flux of any of said magnetic means when registered therewith, and a circuit in said casing including a battery, said alarm means, and said switch for energizing saidv alarm means, as said switch is closed by registration of said game piece with one of said significant areas of said playing surface.

9. Magnetically operated game apparatus comprising a gameboard including a playing surface hav'ng significant areas and non-significant areas, some of which significant areas have magnetic means positioned therein, and at least one game piece selectively movable over said sur-.-

face with reference to said areas, said gamement comprising an electric lamp bulb, said magnetizable means comprising a normally open magnetically operable switch in said casing arranged to be closed by the magnetic fiux of any of said magnetic means when registered'therewith, and a circuit in said casing including a.

battery, said lamp bulb, and. said switch. for lighting said lamp bulb, as said switch is closed by registration of said game piece with oneof;

said significant areas of said playing surface.

10. Magnetically operated game apparatuscomprising a gameboard including a playing surface having significant areas and non-significant areas, some of which significant areas have magnetic means positioned therein, and at least one game piece selectively movable over said surface with reference to said areas, said game piece comprising a casing, a signal element comprising an electric alarm means secured to said game board, magnetizable means in said casing for operating said signal element, said magnetizable means being constructed and arranged to be actuated by any of said magnetic means when said game piece is moved on the gameboard to a position of substantial registry with a significant area having such magnetic means, said magnetizable' means comprising a normally open magnetically operable switch in said casing arranged to be closed by the magnetic fiux of any of said magnetic means when registered therewith, and an electric circuit including said switch, said alarm means, and a source of electric current for energizing said electric alarm means, when said switch is closed as said game piece is registered with one of said significant areas on the playing surface of the gameboard.

11. Magnetically operated game apparatus according to claim 10, wherein said source of electric current is a battery built into said gameboard.

12. Magnetically operated game apparatus comprising a gameboard including a playing surface having significant areas and non-significant areas, some of which significant areas have magnetic means positioned therein, and at least one game piece selectively movable over said surface with reference to said areas, said game piece comprising a casing, a signal element secured to said gameboard, magnetizable means in said casing for operating said signal element, said magnetizable means being constructed and arranged to be actuated by any of said magnetic means when said game piece is moved in the gameboard to a position of substantial registry with a significant area having such magnetic means, said signal element comprising an electric lamp bulb mounted on said gameboard, said magnetizable means comprising a normally open magnetically operable switch in said casing arranged to be closed byithe magnetic flux of any of said magnetic means when registered therewith, and an electric circuit including said switch, said bulb, and a source of electric currents for lighting said lamp bulb when said switch is closed as said game piece is registered with one of said significant areas on the playing surface of the gameboard.

' 13. An exhibitor comprising a non-magnetic casing having a magnetizable core in its bottom, an armature arranged opposite said core and mounted by one end in said casing with its opposite end free, said armature being adapted to be drawn toward said core when said core is magnetized by being placed within the flux of a magnet over which said exhibitor may be placed, signal means in said casing and operating means actuated by said armature and connected to said signal means, said signal means comprising an electrical alarm device, an energizing circuit for said alarm device including a battery and a switch having a pair of normally separated cpposed switch points, and said operating means comprising a portion in said armature carrying one of said switch points, the other of said switch points being stationarily mounted in said casing, said armature being arranged to move said one switch point into engagement with said other stationary switch point so as to close said energizing circuit and operate said alarm device, when said core is magnetized.

14. An exhibitor comprising a non-magnetic casing having a permanent magnet mounted in the bottom of said casing, an armature arranged opposite said magnet and mounted by ,one end in said casing with its opposite end free, a magnetic circuit including said permanent magnet and said armature, a small air gap in said magnetic circuit, said armature being adapted to be drawn toward said permanent magnet when said exhibitor is placed near a magnetic means and adapted to substantially close said gap in said magnetic circuit, signal means in said casing and operating means actuated by said armature and connected to said signal means, said alarm device means comprising an electrical signal, an energizing circuit for said signal including a battery and switches having a pair of normally separated, opposed switch points, and said operating means comprising a portion in said armature carrying one of said switch points, the other of said switch points being stationarily mounted in said casing, said armature being arranged to move said one switch point into engagement with said other stationary switch point so as to close said energizing circuit and operate said alarm device, when said armature is drawn toward said permanent magnet.

EDMUND ABRAHAMSON.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,438,958 Abrahamson Apr. 6, 1948. 2,619,349 Abrahamson Nov. 25, 1952

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2438958 *Aug 31, 1945Apr 6, 1948Edmund AbrahamsonVibration actuated indicator
US2619349 *Jan 2, 1947Nov 25, 1952Abrahamson EdmundMagnetically operated game apparatus
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2782038 *Apr 16, 1954Feb 19, 1957Engel Jr John AMagnetic game apparatus
US2794166 *May 4, 1954May 28, 1957William S FerdonWalking sticks for the blind
US2804611 *Mar 26, 1956Aug 27, 1957Charles L CraddockFlashing light for signalling
US2819904 *May 17, 1956Jan 14, 1958Walter M NelsonGame board and playing pieces therefor
US3002149 *Apr 22, 1958Sep 26, 1961Christian Richard ADetector for magnetic metal
US3010228 *Jul 1, 1959Nov 28, 1961Torre Douglas PMagnetic teaching panel
US3143722 *Oct 18, 1963Aug 4, 1964Murch David HVisual signal system for automotive vehicles
US3219811 *Feb 5, 1963Nov 23, 1965Young Clyde SWatertight flashlight with magnetic switch
US3223419 *May 15, 1963Dec 14, 1965Harry WadeMagnetic game apparatus
US4013291 *Nov 24, 1975Mar 22, 1977Robert L. BrassGame with detector assembly providing a stored indication of the passage of the assembly over a magnet concealed in a game board
US4296376 *Jan 29, 1979Oct 20, 1981Bartol Jr Robert JProbe for sensing characteristics of electrical devices utilizing a magnetic switch sensor biased by an encircling magnetic biasing means
US4324405 *Mar 31, 1980Apr 13, 1982Product Dynamics, Ltd.Board games having variable game-piece-energized circuits
US4609356 *Mar 20, 1985Sep 2, 1986Gilden Deborah BRearrangeable form board with sensory feedback
US4654589 *Sep 30, 1983Mar 31, 1987The Boeing CompanyApparatus and method for identifying a reference location for a work piece
US4824376 *Apr 20, 1987Apr 25, 1989Arash Ahmad REducational device
US5197741 *May 19, 1992Mar 30, 1993Wu Liung MElectrically lightable chess piece
US8704623 *Feb 16, 2007Apr 22, 2014Sikorsky Aircraft CorporationReconfigurable harness board
DE2927593A1 *Jul 7, 1979Aug 14, 1980Klein Claus Dieter Dipl WirtscSpielzeugdoktorgeraetezusammenstellung
Classifications
U.S. Classification434/330, 273/443, 340/686.1, 324/151.00R, 273/237, 273/239, 340/321, 362/398, 324/228, 273/284, 434/338
International ClassificationA63F9/34, A63F9/00
Cooperative ClassificationA63F9/34
European ClassificationA63F9/34