US3564236A - Switch, especially double cross switch for electric toy and model railroad installations - Google Patents

Switch, especially double cross switch for electric toy and model railroad installations Download PDF

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Publication number
US3564236A
US3564236A US751795A US3564236DA US3564236A US 3564236 A US3564236 A US 3564236A US 751795 A US751795 A US 751795A US 3564236D A US3564236D A US 3564236DA US 3564236 A US3564236 A US 3564236A
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switch
rail
tongue
guiding
tongues
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US751795A
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Max Ernst
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H19/00—Model railways
    • A63H19/30—Permanent way; Rails; Rail-joint connections
    • A63H19/32—Switches or points; Operating means therefor

Definitions

  • Bertsch Attorney-Walter Becker ABSTRACT A switch, especially narrow gauge double crossswitch, for electric toy and model railroads, with current supply through-both rails, in which in the vicinity of the central portion of the switch, the outer rails of the switch which are connected to the insulated switch bed, are provided with conductive plates which extend closely to the central portion of the switch and which within the switch form electric current conductive surfaces for contact with the wheel rims of rail vehicles passing over the switch and with guiding rails for the wheel rims as well as for the bearings of the switch tongues.
  • the present invention relates to switches, especially double cross switches, for electric toy and model railroad installations, in particular those having a small gauge, in which the current supply is effected via both rails.
  • FIG. 1 diagrammatically illustrates a top view of a simple branching-off switch according to the invention.
  • FIG. 2 is a top view of a double cross switch according to the invention.
  • FIGS. 3 and 4 respectively illustrate the switch of FIG. 2, and more specifically, the adjusting device at the bottom side thereof in two different positions.
  • FIG. 5 is a cross section along the line V-V of FIG. 2.
  • FIG. 6 is a top view of a double cross switch according to the invention with double switch tongues displaceable in a direction transverse to the longitudinal direction of the switch.
  • FIG. 7 is a bottom view of the doublg cross switch of FIG. 6.
  • FIG. 8 shows the switch of FIG. 6 as seen from the bottom and provided with a control member.
  • FIG. 9 is a section along the line IX-IX of the switch of FIG. 6.
  • the switch according to the present invention is based on the finding that it is possible to build switches, especially double cross switches, for toy and model railroad installations which are not only very simple in their mechanical construction and reliable in their operation, but which also will assure an uninterrupted current supply when the train passes over the switch while avoiding the danger of short circuits.
  • switches especially double cross switches
  • toy and model railroad installations which are not only very simple in their mechanical construction and reliable in their operation, but which also will assure an uninterrupted current supply when the train passes over the switch while avoiding the danger of short circuits.
  • the switch especially double cross switch, according to the present invention is characterized primarily by the following features:
  • the outer switch rails which are anchored in the insulated switch bed are in the vicinity of the switch center provided with conductor plates which extend closely to the switch center. These conductor plates form within the switch, current conducting surfaces to be engaged by the rims of the wheels, rails, conducting webs for the wheel rims and, if desired, the supports for the switch tongues.
  • the rail sections approach each other at the central portion of the switch to a minimum distance from each other and overlap each other in the central portion ofthe switch in such a way that in a larger central-portion of the switch the wheel moving on the outer curved rail section will have its rim move on a current conducting guiding web.
  • the metallic guiding webs provided in the core of the double cross switch are preferably so arranged that they are located opposite to each other with straight flanks while the conductor plates for purposes of forming surfaces upon which the wheel rims move will slightly protrude beyond said flanks toward the central portion of the switch.
  • the radius of curvature or the crossing angle of the switch is to be so selected that the distance between the outer crossing points is greater, especially a multiple of the distance between the inner crossing points.
  • each switch or current side which conductor plates are formed by surfaces onto which the wheels move or by rail webs or guiding webs, should extend closely to the crossing point of the switch or closely to the outer crossing points of the double cross switch.
  • the guiding plates connected to the curved rails should be provided with guiding webs for driving straight forward or for passing the crossing in a cross traffic.
  • These guiding webs should with double cross switches extend from the central cross of the respective switch or current side to one of the outer crosses.
  • switch tongue for each branch off.
  • This tongue may, relative to the curved outer rail, be confined by an curved flat flank and may with regard to the straight outer rail or central portion of the switch be confined by a straight flank.
  • a control valve which is adjustable in the driving direction and preferably consists of synthetic material.
  • This control valve has within the range of the valve slides two counter running slot arrangements which are engaged by studs of the switch slides.
  • FIG. I shows the switch bed 1 made of insulating material.
  • FIG. 1 furthermore shows the outer crossing 4 which is formed by parts of the insulating switch bed and which is intended for passing the rims of the wheels.
  • the crossing 4 comprises a triangular portion 5, and the guiding webs 6, 7, 8 made of the same material as the switch bed.
  • the reference numerals 9 and I0 designate conductive rail sections which are connected to the rail bed and which follow the triangle 5 of the crossing in outward direction.
  • the two outer rails 2 and 3 are each provided with a conductor plate 11, I2 which advantageously are flush with the surface of the rail bed at the crossing point.
  • the switch bed 13 At substantially the same level as the conductor plates 11 and arranged therebetween is the switch bed 13 which insulates the two current conductive parts from each other.
  • the relatively slender switch tongue 14 is, by means of a pivot 15, journaled in the conductor plate 12.
  • a guiding web 16 At the end of the switch tongue 14 there is provided a guiding web 16 with a slight crank 17. This guiding web serves as abutment for the switch tongue, the end of which engages the crank.
  • a similar crank 17a is provided on rail 3.
  • crank 17 serves for receiving the end of the switch tongue during straight forward drive.
  • This crank permits a relatively strong design of the switch tongue even at its ends which is particularly advantageous with narrow gauges.
  • the head of the switch tongues is selected so wide that it can receive a sufficiently strong pivot 15.
  • a guiding rail 18 which extends close to the crossing point 4 of the switch.
  • a similar conductor web forms the extension of the switch tongue 14 and is located on the conductor plate 12 while being designed in the form of a two-arm guiding web 19, 19.
  • One flank of web 19, 19' forms a passage with the curved rail 3 while the other flank forms an oppositely located rail section with the rail 2 during straight forward drive.
  • the switch tongue is adjusted for driving through an arc.
  • the critical area is located solely at the ends of the guiding webs 18, 19 at 18, 19 while, however, it is not possible that the wheel rim which, for instance, with a 9 millimeter gauge has a thickness of approximately a few tenths of a millimeter will simultane' ously contact the guiding webs 18, 19.
  • the necessary distance between the guiding parts 18, 19 or the necessary distance of the rail ends 9, 10 determine the track section which is to be driven over without current and after the crossing 4.
  • the thus obtained currentless track section may at any rate be shorter than the distance between two serially arranged pairs of wheels for conveying current to the driving motor.
  • the switch tongue 14 consists of a single unitary movable element, the adjustment of said switch tongue 14 will cause no difficulties.
  • FIGS. 2-5 illustrate the application of the structural features shown in FIG. 1 to a double cross switch. All parts of FIGS. 2-5 corresponding to those of FIG. 1 are of the same design with the exception of the metallic guiding webs 18, 19 shown in FIG. 1. Furthermore, the guiding web 8 of FIG. 1 has been replaced by the guiding web 16 in view of the symmetric arrangement in FIGS. 2-5.
  • FIGS. 25 The double cross switch of FIGS. 25 is over the simple switch of FIG. 1 supplemented by the feature that adjacent each arced rail there are provided two switch tongues 14 having their head portions located adjacent each other.
  • the guiding web 19, 19 in FIG. I is, so to speak, cut open and replaced by the additional switch tongue 14 for the drive through the arced rail section and by a guiding rail 20 for straight drive.
  • the guiding web 18 of FIG. I has been replaced by two longitudinally extending drive and guiding webs 21 which are respectively located on the two conductor plates ll, 12 and which are located opposite to each other while being separated from each other solely by the insulating strip 13.
  • a narrow margin of the conductor plates protrudes inwardly beyond these surfaces so that also the rims of the wheels of the railroad vehicle can engage said surfaces in a conductive manner between the webs 21.
  • the distance between the guiding webs 21 is on this switch only twice as great as the customarily provided driving groove for permitting the passage of the wheel rims.
  • the rims have a thickness of only 0.3 millimeters, insulating strip 13 having a width of approximately 1 millimeter will suffice to safely avoid a short circuit by the wheel rims.
  • the operation and the current supply to the wheels with a double cross switch according to the invention is effected in the following manner.
  • the switch tongues 14 and the oppositely located guiding webs 20 substantially take care of the current supply.
  • the wheel rims move onto the conductor plates ll, 12 so that in this way no current interruption occurs.
  • the ends of the switch tongues 14 engage the ends of the guiding webs 16.
  • the switch tongues When passing through the arced portion of the switch, the switch tongues will now, over a portion of their length, guide the inner wheels along the inner edge of the wheel rim, but will do so only until the wheel rim of the wheel moving along the outer arc has reached the guiding web 21.
  • the respective wheel moving along the outer arc will, following the passage of the outer cross 4 move first off the guiding web 20, subsequently is, by means of the switch tongue 14 moved away from said guiding web 20, then moves over a short distance by means of the wheel rim on the likewise conductive conductor plate 11, 12, and finally by means of its wheel rim moves onto the inner guiding web 21.
  • the two guiding webs 21 are spaced from each other to such an extent that the rim wheels can pass through the preferably straight gap therebetween in either direction.
  • the current supply of the two wheels of a running axle will always be safely maintained when the vehicle passes through the relatively long central portion of the switch. Similar to the example of FIG. I, a relatively short interruption in the current supply is effected only when the vehicle crosses the two outer crosses.
  • FIGS. 3-5 additionally disclose a device for actuating a switch according to FIG. 2.
  • a relatively thin metal plate 22 shown in cross section is screwed onto the switch bed 1 or may be connected thereto in any other convenient manner.
  • a fork 24 From a housing 23 for a double electromagnet arrangement there protrudes a fork 24 toward the switch.
  • eyes 25 are provided on the switch tongues in recesses of the switch bed, said eyes 25 being located near the ends of said fork 24.
  • Spring wires 26 extend through the eyes of the two tongues of each switch side.
  • Located on the bottom side of the switch bed is a two-arm control lever 27 which expediently is made ofinsulating material and which is pivotable about a pivot 28 of insulating material against abutments.
  • This lever 27 has its ends provided with recesses for forming earns 30, 31 located opposite to each other. Between said cams 30, 31 there is guided a spring wire 26 each.
  • the switch tongues 14 are held outwardly against the arced rails 3 whereas, when the lever 27 occupies the position shown in FIG. 4, the switch tongues are held inwardly in abutment with the guiding webs 16.
  • One end oflever 27 is continued by an outwardly extending arm section 32 which extends beyond the switch bed and at its end carries a pin 33. Pin 33 engages a slot in fork 24. A straightline adjust ment of fork 24 thus brings about the adjustment of all four switch tongues so that they will occupy the position shown in FIGS. 3 and 4.
  • the switch is of a still simpler construction which means comprises less parts whereby it is still more safe in operation and still less expensive in construction.
  • the switch bed 1 of synthetic material has connected thereto two arced or bent outer rails 3 having associated therewith guiding webs 16 of synthetic material which are substantially parallel to said outer rails 3.
  • Uniformly tapering inner rails 9, 10 lead into a triangle 5 of synthetic material which at both sides have associated therewith guiding webs 6, 7.
  • Metallic guiding rails 20 and guiding members 21 are provided in the switch bed 1.
  • the switch bed 1 has furthermore mounted therein, switch slide members 34, 35 which are displaceable in a direction transverse to the driving direction and which preferably are displaceable in metallic conductor plates 11, 12 to which they are electrically conductively connected. Rigidly connected to the slides 34, 35 are double switch tongues 36, 37 which on the outside have a bend corresponding to the outer rail 3.
  • the two tapering tongues of such a double tongue 36, 37 are rigidly connected to each other and consist of one piece.
  • studs 39, 40 which extend into guiding slots 41, 42.
  • These guiding slots are mounted in a tuning fork-shaped control slide 43 or in the legs 44, 45 thereof.
  • the free end of the legs 44, 45 are provided with a kind of crowned ends 46,47 which by means of a spring wire 49 which closes the legs 44, 45, engage a member 48.
  • a guiding member 50 which registers with an extension 51 of the control slide 43.
  • the control slide 43 is provided with an actuating lever 52.
  • the double switch tongues 36, 37 are displaced outwardly which means that they are adjusted for a straight drive. If, however, the actuating lever 52 is moved toward the left, the crowned ends 46, 47 slide over the member 48.
  • the guiding slots 41, 42 move the studs 39, 40, and the latter move the slides 34, 35 and the double switch tongues 36, 37 in a countercurrent manner inwardly (see FIG. 7) until they engage the guiding webs 16.
  • the spring 49 engaging the legs 44, 45 sees to it that the double switch tongues 36, 37 will, in both control positions, engage their respective end position under resilient pressure.
  • each of said plates is provided with an extension 53 connected to the switch bed 1 by means of hollow rivets 54.
  • the inner rails 9 and connected to an insulating base 55 are, together with said base 55, riveted to the switch bed 1 by means of hollow rivets 56.
  • FIG. 7 provided band-shaped conductors 57 and 58 which are located in the switch bed and which cross each other while being insulated relative to each other. These conductors 57 and 58 are by means of the hollow rivets 54, 56 in good conductive connection with the conductor plates ll, 12 on one hand, and the inner rails 9, 10 on the other hand.
  • conductor plates 59 and 60 are conductively connected to the inner rails 9 and 10 and directed toward the switch center. It is these conductor plates 59,60 on which the rims ofthe wheels can roll for reducing the currentless driving section until the conductor plates l1, 12 have been reached.
  • the present invention may be used for direct current operated as well as for alternating current operated toy and model railroad installations, in which the current supply is effected through both rails.
  • a switch especially narrow gauge double cross switch, for electric toy and model railroads with current supply through both rails of one and the same track and with adjustable switch tongue means for controlling the switch which includes: a switch base having a bed portion of insulating material, inner and outer rail means anchored in said bed portion, electric current conductive plate means arranged approximately in the central portion of said switch and associated with said outer rail means for electric communication with said switch tongue means and with the wheel rims of rail vehicles passing through said switch, curved rail means, and said switch tongue means including at leastone switch tongue pivotally journaled near the adjacent curved rail means in the central portion of the switch, said switch also including guiding web means extending approximately parallel to and alongside the respective section of the adjacent curved rail means and having a cranked portion for engagement with the adjacent free end of the adjacent switch tongue, said guiding web means outside said cranked portion forming substantially the extension of the respective adjacent switch tongue when the latter engages said cranked portion.
  • a switch according to claim 14 which includes guiding web means located in the central area of said switch and electrically conductively connected to said plate means, said guiding web means overlapping with portions of adjacent rail means so that over a central portion of said switch at least the wheel rim of a rail vehicle wheel passing over the respective outer rail of its track will pass over the respective current conductive guiding web means.
  • a switch according to claim 2 in which said guiding web means have those sides thereof which face each other provided with straight flanks, and in which the electric current conductive plate means support said guiding web means and protrude beyond said flanks toward the central longitudinal plane of said switch.
  • a switch according to claim 14 in which the electric current conductive plate means of each switch side extend close to the crossing point.
  • a double cross switch which includes a central crossing area of said outer and inner rail means and also includes outer crossing areas respectively located at the end portions of said switch and pertaining to said inner rail means, and in which said electrically conductive plate means are provided with and electrically connected to guiding webs extending from said central crossing area to the outer crossing areas.
  • a switch according to claim 14 which has at least one branch-off section, and in which the switch tongue means comprise one single pivotable switch tongue for each branchoff section.
  • a switch according to claim 9 in which said switch ton- 'gue has that longitudinal side thereof which is closest to the adjacent side of the switch curved and has the opposite longitudinal tongue side substantially straight.
  • a switch according to claim 8 in which said tongue means are pivotable about pivot axes located in the central portion of the switch and extend in the direction toward the respective outer crossing areas pertaining thereto, the length of said switch tongue means equaling approximately the distance between the inner and outer crossing areas.
  • a switch according to claim I in which said guiding web means forms a part of the bed portion of insulating material.
  • a switch according to claim 1 in which the curved rail means near the free end of the respective adjacent switch tongue is provided with a cranked portion for receiving said free switch tongue end when a straight drive through the switch is desired.
  • a double cross switch with two oppositely curved rails spaced from each other in the transverse direction of the switch and with four branch-off sections branching off from the central area of said switch, in which the switch tongue means include four switch tongues arranged in pairs pivotally connected to said bed portion, one pair of said switch tongues being associated with one curved rail and the other pair of switch tongues being associated with the other curved rail, said switch also including actuating means extending within said bed portion in the longitudinal direction of said switch and being operatively connected to said tongues for adjusting the same.
  • said actuating means includes wire means connected to said tongues, and which includes a pivotable two-arm lever located at the bottom side and in the central portion of said bed portion and comprising cam means operatively engaging said wire means for actuating the same.
  • a switch for electric toy and model railroads with current supply through both rails of one and the same track and with adjustable switch tongue means for controlling the switch, which includes; a switch base having a bed portion ofinsulating material, inner and outer rail means anchored in said bed portion, electric current conductive plate means arranged approximately in the central portion of said switch and associated with said outer rail means for electric communication with said switch tongue means and with the wheel rims of rail vehicles passing through said switch, two curved outer rails spaced from each other in the transverse direction fsaid switch for passing a rail vehicle through said switch along a curved path, and said switch tongue means including two one-piece double switch tongues movable selectively toward the respective adjacent curved outer rail for passing a rail vehicle through the switch along a substantially straight path and away from the respective adjacent curved rail for passing a rail vehicle through said switch along a curved path.
  • a switch according to claim 20, which for purposes of actuating said double switch tongues includes electrically conductive slide control means operatively connected to said double switch tongues and slidable in said electric current conductive plate means while being electrically connected thereto.
  • a switch especially narrow gauge double cross switch, for electric toy and model railroads with current supply through both rails of one and the same track and with adjustable switch tongue means for controlling the switch, which includes; a switch base having a bed portion of insulating material, inner and outer rail means anchored in said bed portion.
  • electric current conductive plate means arranged approximately in the central portion of said switch and associated with said outer rail means for electrical communication with said switch tongue means and with the wheel rims of rail vehicles passing through said switch, outer rails and inner rails, and insulated conductor means crossing each other and electrically conductively interconnecting said inner rails and the respective electric current conductive plate means ofthe same potential, additional electric current conductive plate means electrically connected to said inner rails and extending in the direction toward the central portion of the switch, said additional plate means having an electric current conductive surface for engagement with the wheel rim of a rail vehicle passing through said switch.

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US751795A 1967-08-12 1968-08-12 Switch, especially double cross switch for electric toy and model railroad installations Expired - Lifetime US3564236A (en)

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Application Number Priority Date Filing Date Title
DEE0034589 1967-08-12

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US (1) US3564236A (fr)
CH (1) CH497188A (fr)
DE (1) DE1603280A1 (fr)
ES (1) ES357004A1 (fr)
FR (1) FR1579737A (fr)
GB (1) GB1241567A (fr)
NL (1) NL6810984A (fr)
SE (1) SE335085B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948073A (en) * 1988-10-24 1990-08-14 Kadee Metal Products, Co. Turnout with closing frog
US5440996A (en) * 1994-02-10 1995-08-15 Mattel, Inc. Track set with rotating intersection for toy trains
US20030222181A1 (en) * 2002-05-29 2003-12-04 O'brien Cory Tongue switch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2655776C2 (de) * 1976-12-09 1984-08-23 Trix Mangold GmbH, 8510 Fürth Stellvorrichtung für eine Doppelkreuzungsweiche von Spiel- und Modellbahnen
DE2713561A1 (de) * 1977-03-28 1978-10-05 Trix Mangold Gmbh & Co Stellvorrichtung zur betaetigung von kreuzungsweichen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2340042A (en) * 1941-10-28 1944-01-25 Marx & Co Louis Track switch for toy railways
DE1135354B (de) * 1957-04-06 1962-08-23 Maerklin & Cie Gmbh Geb Schaltwerk fuer die Zungen einer Doppelkreuzungsweiche fuer Modell- und Spielzeuggleisbahnen
US3190557A (en) * 1962-11-27 1965-06-22 Nagy Jules Model two rail electric railroad and turnout switch therefor
US3316401A (en) * 1964-06-01 1967-04-25 Eldon Ind Inc Road race track switch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2340042A (en) * 1941-10-28 1944-01-25 Marx & Co Louis Track switch for toy railways
DE1135354B (de) * 1957-04-06 1962-08-23 Maerklin & Cie Gmbh Geb Schaltwerk fuer die Zungen einer Doppelkreuzungsweiche fuer Modell- und Spielzeuggleisbahnen
US3190557A (en) * 1962-11-27 1965-06-22 Nagy Jules Model two rail electric railroad and turnout switch therefor
US3316401A (en) * 1964-06-01 1967-04-25 Eldon Ind Inc Road race track switch

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4948073A (en) * 1988-10-24 1990-08-14 Kadee Metal Products, Co. Turnout with closing frog
US5440996A (en) * 1994-02-10 1995-08-15 Mattel, Inc. Track set with rotating intersection for toy trains
US20030222181A1 (en) * 2002-05-29 2003-12-04 O'brien Cory Tongue switch
US20050116118A1 (en) * 2002-05-29 2005-06-02 O'brien Cory Tongue switch
US6955326B2 (en) * 2002-05-29 2005-10-18 Vae Nortrak North America Inc. Tongue switch
US7185860B2 (en) 2002-05-29 2007-03-06 Vae Nortrak North America, Inc. Tongue switch

Also Published As

Publication number Publication date
DE1603280A1 (de) 1971-06-24
ES357004A1 (es) 1970-02-16
FR1579737A (fr) 1969-08-29
SE335085B (fr) 1971-05-10
CH497188A (de) 1970-10-15
GB1241567A (en) 1971-08-04
NL6810984A (fr) 1969-02-14

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