Title:
Whistle actuating and control means for toy trains
United States Patent 2196319


Abstract:
This invention relates to whistle actuating and control means for toy trains, and more particularly to electric toy train systems In which a whistle carried by.the train is actuated by a 8 small electric motor. One of the objects of the invention Is to provide an improved toy train set having...



Inventors:
Mcloughlin, James E.
Application Number:
US24438938A
Publication Date:
04/09/1940
Filing Date:
12/07/1938
Assignee:
GILBERT CO A C
Primary Class:
Other Classes:
246/81, 307/140, 318/280, 318/479, 361/191
International Classes:
A63H19/14
View Patent Images:



Description:

This invention relates to whistle actuating and control means for toy trains, and more particularly to electric toy train systems In which a whistle carried by.the train is actuated by a 8 small electric motor.

One of the objects of the invention Is to provide an improved toy train set having simple and convenient means whereby the whistle actuating motor, as well as the propulsion motor of the train, may be controlled from a distance.

Another object is to provide improved means whereby at any time desired the whistle carried by the train may be blown.

It is also aimed to provide a device of this kind IB in which the operation of blowing the whistle will not Interfere with the driving of the train by its electric propulsion mechanism.

In the accompanying drawings: Pig. 1 is a diagrammatic view showing an elecs tri toy train system embodying my improvements; Fig. 2 is a side elevation of the electromagnetic switch device for controlling the train propulsion; Fig. 3 is a top plan view of the device shown in ig. 2; Fig. 4 is a section on line 4-4 of Fig. 2; Fig. 5 Is a detail of the switch device mounted on the tender for controlling the operation of the 0 whistle; Fig. 6 is a detail sectional view of the quickacting switch device associated with the transformer in 1Fg. 1; ig. 7 Is a section on line 7-1 of Fig. 6; and 5 Fig. 8 is a view similar to Fig. 1 showing a modified form.

In devices of this class it has been common to provide the locomotive with an electric propulsion motor, and with a remotely controlled electromagnetic switch device for starting and stopping the locomotive and changing its direction. It has also been common to mount at a suitable point on the train, for example, on the locomotive tender, a pneumatically-operated whistle whose actuator is a small electric motor connected in the circuit so as to be operable from a distance for blowing the whistle when that is desired. However, such whistle controls as have s been provided heretofore have been complicated and liable to get out of order, and there has been difficulty in controlling from a single point in a reliable manner the operation of both the propulsion motor and the whistle or like warning 1 signal. The whistle is most commonly used, but in this application I mention a pneumaticallyoperated whistle merely by way of example.

In Fig. 1 by way of example I have shown an arrangement in which wheel-supporting track rails A and B are insulated from each other, and where suitable collecting devices at A' and B' carried by the locomotive C, by contacting the respective rails, provide for the supply of current to an electric motor D on the locomotive, this being the motor which propels the train.

My improvements may, however, be used in con- 10 nection with a third rail system.

E is the locomotive tender on which is mounted a pneumatic whistle device F, whose actuator is a small electric motor G. H is a transformer of 1 any suitable type, which is illustrated only so far as necessary for the understanding of the present invention, the same being connected by leads h and h' with the usual light socket, and having the usual primary coil (not shown), and having its secondary coil I connected to the rails A and B to supply thereto alternating current of the desired voltage. For the purpose of reversing the propulsion motor D, for example, by reversing the direction of current in its armature, a reversing switch J is provided, shown in detail in Figs. 2, 3 and 4. For the purpose of causing actuation of the whistle motor 0, a controlling switch K is provided, certain details of which are shown in Fig. 5. At A2 and B2 the tender E is provided with suitable current collectors by means of which current is carried to motor G and switch K. For actuating the switch K, a special actuating switch L Is employed, and this may be associated with the transformer H 85 in the manner indicated in Fig. 1.

The usual or ordinary transformer control may be provided by a knob I having a pointer II movable over contacts 12 associated with a portion of the secondary I, so that in the usual manner control of the voltage supply to the motor may be effected. In the case selected for illustration, the range is from zero to 12 volts, but this is merely by way of example. It will be apparent that the primary will, in the customary manner, induce current in the secondary I, and that by moving the knob .0 the voltage can be increased stepwise In the usual manner up to the point where 12 volts are supplied. The secondary coil I, however, is provided with a portion 13, 5 not under control of knob 10, and which in effect forms an extension of the secondary coil adapted when cut in to bring about a substantial increase in the voltage, and in this particular case it may be assumed by way of example that when Ws the entire secondary coil is introduced into the circuit, 20 volts will be supplied to the rails.

The cutting in of the extra portion or extension 13 may be effected by means of the switch L when the latter is shifted to the dotted line position shown in Fig. 1, and when this shift has been made, the switch K, which is inoperative at ordinary voltages, is actuated to close the circuit of whistle motor G.

A suitable form which the switch L may assume in practice is illustrated in Figs. 6 and 7. It may comprise a lever 14 pivoted intermediate of its ends at 15 on a plate 16 of insulating material on or associated with the wall of the transformer casing and within the casing. The outer end of the lever operates in a slot 17 in a bracket 18.

Lever 14 is acted upon by a coiled spring 19, one end of which is attached to a post 20 on plate II, and the other end of which is attached to a post 21 on the lever, the post 21 operating in an arcuate slot 22. The inner end portion 23 of lever 14 is adapted to contact with end contacts 24 and 25, respectively, and with an intermediate contact 26, all mounted on insulating plate 16.

When the switch L is in the position shown in full lines in Fig. 1, the lever 14 forms a connection from rail B and circuit branch 27 to contact 24 by way of circuit branch 28 with knob 10 of the transformer. At the opposite end of its 80 swinging movement on its pivot the inner end of the lever will be in contact with contact member 25 to connect the lever with the transformer knob by way of circuit leg 29. It will be understood, however, that in moving from one of these ex85 treme positions to the other, the lever will by its inner end engage for an instant the contact 26, which is connected by circuit leg 30 with the extension 13 of the secondary coil, so that momentarily the entire secondary coil will be introduced .40 into the circuit. This will be effective in actuating the switch K, the coil of which is of such character and so wound as to be responsive only to this higher voltage, and in this manner the circuit of whistle motor G will be closed to cause the blowing of the whistle. In moving from one of its positions to the other the lever 14 will not Interrupt the connection between the secondary coil and the track rails.

The switch device J for controlling the opera60 tion of the propulsion motor comprises a coil 31 having a fixed iron core 32, said coil being secured by screw 33 to an L-shaped, metal frame 34. A swinging armature 35 pivoted adjacent one end to frame 34 at 38 is adapted to be pulled toward the & coil as current traverses the latter. A spring 37 normally holds the armature in the position shown in Fig. 2. At right angles to the coil a rotary drum or commutator 38 is arranged in the frame, and this commutator is adapted to be rotated step by step by a ratchet wheel 31 on the shaft 40 of the commutator, being engaged by a pawl 41 pivotally mounted at 42 on the downturned extremity 43 of armature 35._ Thus upon each Inward pull on the armature, the commutator is turned one step. The commutator proper is formed with metal rings, said rings being provided with suitable axial extensions and mounted on a body of insulating material. Pressing against the commutator are suitable brushes, and in the particular arrangement illustrated, there are two horizontal brushes 44 and 45, and two vertical brushes 41 and 47.

It will be understood that the commutator is rotated in one direction only, and that upon sucIS cessive actuations of the electromagnet by closing the connection of the feed circuit to the rails through the transformer knob, or otherwise, the switch J will be moved to cause, respectively, the drive of the propulsion motor in one direction, the stoppage of the train, and the drive of the train in the opposite direction by reversal of the motor armature and field connection.

The switch K is in general similar in construction to switch J, but switch K is a two-position switch only, -having a drum 48 with a metal contact ring 49, a portion 6I of insulating material, and brushes 51 and 52. Upon successive actuations of switch K the same is moved, respectively, to a position in which the circuit of the whistle motor is closed, and a position in which said circuit is open. It is understood, of course, that the rotation of the commutator, as in the case of switch J, is effected by a pivoted armature carrying a pawl at its free end, which pawl engages a ratchet wheel 31' on the commutator shaft 40'.

It will be understood that in the operation of the device the propulsion of the train will be controlled by actuation of the transformer knob.

In Fig. 1 the transformer knob is shown in full 35 lines in the "off" position, but by moving it so that its pointer contacts the first contact, the circuit will be closed, and by proper adjustment of the knob the train can be run at the desired speed, and by cutting off the current to the tracks and 80 then reconnecting, the reversal or the stoppage of the train can be effected, depending upon the position of the step-by-step switch. The switch device L is used only for the operation of the whistle. When it is desired to operate the whistle 36 the pivoted switch member 14 is thrown over by the finger to its other position. In this operation its inner end will wipe across contact 26 and momentarily close the circuit through the entire secondary coil, thereby causing a surge of high 4d voltage to pass through the coil of switch K, which will close the whistle motor circuit and start the sounding of the whistle as soon as the whistle motor comes up to speed. The whistle will continue to sound until the switch lever is flipped in the opposite direction to the initial position, during which operation switch K will again be actuated, the actuation at this time moving its commutator to a position to break the whistle motor circuit. In this manner the whistling of the train can be effected at any time desired, even when the train is at rest (as permitted by the construction of switch J), provided the knob IS be in a position in which it closes the circuit. The control of the whistle actuation is also very simple and con- M venient, and can be incorporated in a toy train outfit at slight expense. All current used, both for control of the propulsion and whistle motors as well as for actuation thereof, is alternating current, which is ordinarily readily available. When the switch K is actuated by the high voltage for blowing the whistle and the train is being driven, the only effect upon the switch J of the surge of high voltage will be the clamping of armature I3 more firmly against the electromagnet. Also, when the train is at rest there will be no effect upon the switch J because at any time when there is current in the rails the armature 35 of said switch will be held down. When the transformer knob is In the full-line position shown in Fig. 1, there will be no current in the rails, and in this position switch K will not operate the whistle because there will be no current flowing in the rails.

In Fig. 8 I have shown a modified form of my U invention in which, as before, the switches fo closing the motor circuits operate at differeni voltages, but in this case the controlling curreni is direct current. In this Instance the switch J' associated with the propulsion motor is operable by high voltage only, say 6 volts, while the switch M associated with the whistle motor Is operable at a low voltage, say 3 volts. The switch M comprises a coil M', which when traversed by the low voltage above referred to attracts a pivoted armature 35' in opposition to spring 37', and establishes a contact between contact member 35x on the armature and a fixed contact member 35y, thereby closing the circuit of the whistle motor.

In this form the transformer T, having a primary 53 and a secondary 54, comprises a knob 55 connected with a multiple push button switch 56 and a second multiple push button switch 51.

The switch 56 comprises leaves 58, 59 and 60, and is adapted to be actuated by pushing a button 61 on leaf 60. Switch 51 is similarly constituted, having leaves 62, 63 and 64, leaf 64 having a push button 65. Adapted to be placed in the circuit 5 is a direct-current source 66, such as a dry cell battery furnishing 3 volts, and a second directcurrent source 67, such as a dry cell battery furnishing 3 volts, is adapted to be included additionally in the circuit. Suitable connecting means between the leaves 58 and 62, which connecting means may be constituted by link 88, are provided.

It will be seen from Fig. 8 that when the parts are in the positions shown in full lines, connection of the propulsion motor to the transformer will be effected. If it be desired to effect actuation of switch J', switch 57 is actuated by pressing down on button 65. This causes leaf 64 to engage leaf 62, and disengage leaf 63 (and also Scauses leaf 58 to be disengaged from leaf 58), with the result that both direct-current sources 66 and 67 will be introduced into the circuit, furnishing together 6 volts, without actuating switch M, and in this way switch J' may be moved through the different positions, as previously described, without any operation of the whistle motor taking place. The reason for this is that the high-voltage relay operates quickly, and any actuation of armature 35' of switch M which may take place will not be of sufficient duration to bring the whistle motor up to a speed that will operate the whistle. Now when it is desired to operate the whistle, the switch 56 is actuated, button 6 being depressed so as to move leaf 60 into contact with leaf 58, and move leaf 58 out of contact with leaf 59. The effect of this will be to introduce the low-voltage direct-current source 66 alone into the circuit, and in this particular instance 3 volts will pass through switch M, which will be sufficient to actuate said switch and cause the circuit of the whistle motor to be closed. In this case it will be necessary to hold button 61 depressed for a time sufficient to get the whistle motor up to speed, and to sound the whistle for the desired length of time, for when pressure on leaf 60 is released the direct-current source will be eliminated from the circuit, and there will be no further operation of relay M which is operated thereby.

I do not limit myself to direct-current sources constituted by primary batteries, as in certain, cases a rectifier may be used in connection with a suitable resistance so as to provide direct current of sufficiently different voltages for the puri poses in view. Where I use direct-current means r operable at a predetermined voltage for controllt ing the operation of the propelling motor, I may t use alternating-current means operable at a higher voltage for controlling the operation of e the accessory. While I have shown herein two different embodiments of my invention, it will be understood that the latter is susceptible of many different 'embodiments, and that various modifications and constructional changes may be made without departure from the principles of my invention or the scope of the claims.

What I claim is: 1. In a motor control circuit for electric trains, in combination with a track circuit and a train i1 having a propelling motor receiving current from said circuit and provided with a reversing switch, said train also having an accessory receiving current from said circuit and provided with an actuating switch, means operable by current of a predetermined voltage to operate the reversing switch, and means operable by a like current of another voltage for operating said actuating switch.

2. In a motor control circuit for electric trains, in combination with a track circuit and a train having a propelling motor receiving A. C. current from said circuit and provided with a reversing switch relay, said train also having an accessory receiving A. C. current from said circuit and pro- 2n vided with an actuating switch relay, said relays adapted to be actuated by A. C. current at different voltages, and selective means for supplying current of the respective voltages to said relays. so 3. In a motor control circuit for electric trains, in combination with a track circuit and a train having a propelling motor receiving A. C. current from said circuit and provided with a reversing switch relay, said train also having an accessory receiving A. C. current from said circuit and provided with an actuating switch relay, said relays adapted to be actuated by A. C. current at different voltages, and means for supplying current of the respective voltages to said relays, said lastnamed means comprising a transformer provided with an operating knob and a special switch providing an increase of voltage above normal for actuation of the accessory relay.

4. In a motor control circuit for electric trains, 5 in combination with a track circuit and a train having a propelling motor receiving A. C. current from said circuit and provided with a reversing switch relay operable by said A. C. current, said train also having an accessory motorreceivng an aceor motor A. C. current from said circuit and provided with an actuating switch relay, said reversing switch relay being operable by A. C. current of a certain voltage, and said actuating switch relay being operable by A. C. current at a higher voltage, and selective means for supplying current of the respective voltages to said relays.

5. In a motor control circuit for electric trains, in combination with a track circuit and a train having a propelling motor receiving current from the track circuit and also having a signal-operating motor receiving current from the track circuit, a transformer for supplying regulable voltage to said circuit and thereby controlling the propulsion of the train, separate means in association with the transformer for Increasing the voltage in the track circuit to a predetermined limit at will, and means automatically operable upon such increase for closing the circuit of the signal motor.

tI 6. In a motor control circuit for electric trains, in combination with a track circuit and a train having a propelling motor receiving current from said circuit and provided with a reversing switch Srelay, said train also having a signal-operating motor receiving current from said circuit and provided with an actuating switch relay, said reversing switch relay being operable by A. C. current of a predetermined voltage and said actu-, ating switch relay being operable by A. C. current of a different and higher voltage, and means comprising a transformer for supplying operating and controlling voltages to said circuit, said transformer having a secondary coil and a knob 16 cooperating therewith adapted to cut in a portion only of the coil, said transformer also having associated therewith a quick-acting switch for cutting in a, larger portion of the secondary and thereby operating the actuating switch relay. 7. In a motor control circuit for toy trains, in combination with a track circuit, a train having a propelling motor and an accessory motor both supplied with A. C. current from said track circuit, means operable by a direct current within a predetermined voltage range for controlling the operation of the propelling motor, and means operated by a direct current at a voltage outside of said range for controlling the operation of the accessory motor.

8. In a motor control circuit for toy trains, in combination with a track circuit, a train having a propelling motor and an accessory motor both supplied with A. C. current from said track circuit, direct current means operable at a predetermined voltage for controlling the operation of the propelling motor, and direct current means operable at a lower voltage for controlling the operation of the accessory motor.

JAMES E. McLOUGHLIN. 20