US2265124A - Indexed control apparatus - Google Patents

Description

Dec. 9, 1941. L. J. ANDRES INDEXED CONTROL APPARATUS Filed March 20, 1939 4 Sheets-Sheet l i? MIN IN VENTOR.

Dec. 9, 1941. L. J. ANDRES 2,265,124

I INDEXED CONTROL APPARATUS Filed March 20, 1939 4 Sheets-Sheet 2 INVENTOR.

Dec. 9, 1941. ANDRES 2,265,124

INDEXED CONTROL APPARATUS INVENT OR.

Dec. 9, 1941. L. J. ANDRES INDEXED CONTROL APPARATUS Filed March 20, 1939 4 Sheets-Sheet 4 llllllL fillllll lllllllllllllJ IAIIVENFOR. fi y Patented Dec. 9, 1941 UNITED STATES PATENT OFFICE 12 Claims.

This invention relates in general to selective control apparatus and introduces improvements in my now pending remote controller patent application Serial No. 182,708.

I am aware of various control systems used in the past and their inherent disadvantages, such as the necessity for an operator to refer to a numbered index and then the necessity for finding the push button corresponding to the indexed number for initiating his desire. Further disadvantages arise in circuits of this general character when an operator, by holding a control button in its depressed position, or simultaneously pressing a plurality of buttons, may obtain a fraudulent or otherwise improper operation of the device operated. In my pending application I utilize an electric thermal element associated with a push button circuit for opening the master circuit when any particular button is depressed longer than a predetermined period of time. Other circuits in the art utilize dash-pot controlled solenoids for the same purpose. The above systems had other disadvantages, including the necessity for posting printed instructions which necessarily had to be read before an unaccustomed operator could properly operate the device, and further, the thermal type safety device had the disadvantage of being affected by variations in temperature and the dash-pot method of circuit timing was subject to the disadvantage of varying and unstable operation because of changing frictional values. These disadvantages are entirely overcome in the present invention.

Although this invention is specifically directed to operate a coin-controlled automatic selective record player, it is apparent that the inventionwill be useful also in combination with other devices such' as signals or other automatic machines where selective operations can be performed.

A principal object of the invention is the provision of a novel indexed mechanism which may be manually operated with a minimum oi visual, physical and mental effort.

A further object is the provision of mechanism whereby'each of a selected group 01 selections is self-indicated by different degrees of illumination when operated, thus eliminating the necessity of memory on the part of the operator.

Another object of the invention is the provision of magnification and artificial illumination oi a plurality of printed, or written, index or title strips associated with each selector element.

A further object of the invention provides an electro-mechanical means for holding the displacement of one or a group of selected indexed initiating elements.

Another important object of the invention is the provision of an e'lectro-mechanical means for providing an electric impulse oi predetermined duration responsive to the displacement of each of the indexed initiating elements through each circuit correspondingi to the initiating elements.

As another object 0! the invention a circuit means is provided for electrically recording the deposit of coins of diilerent denominations, including additional means whereby the operator may choose and initiate a desired group of selections from the total available selections and receive a number of total selections corresponding only to the total value of the inserted coin or coins.

A further object of the invention is the provision of electro-mechanical and circuit means for preventing an operator from fraudulently obtaining more, or a repetition of selections. than those corresponding to the total value oi the inserted coin or coins.

Another object of the invention is a means for controlling a series initiating circuit wherein the manual closing of the said circuit causes electric energy of two values to flow through the said circuit successively to perform automatically the final operating function of the apparatus.

Referring to the drawings:

Fig. 1 is a front elevation of the control panel having a plurality of index or push bars, showing one of the index bars broken away.

Fig. 2 is a sectional side elevation of the control panel and associated mechanism taken through section line 2-2, Fig. 1.

Fig. 3 is a rear view of the control panel with the electric wiring removed.

Fig. 4 is a top sectional view of the control panel through line 3-3, Fig. 3.

Fig. 5 is an exploded perspective view of the index push bar elements in their respective relationship.

- Fig. 6 is a top sectional view or the control panel showing an alternate method for illuminating the index bars.

Fig. "I is a schematic circuit including a diagrammatic drawing of the coin receiver and electro-mechanical stepping unit associated with said circuit.

Fig. 1 shows a front elevation of a typical panel assembly with the indexed bars or elon- 2'; gated push-buttons 2 in se me positions. The outer frame I is provided= -1Iith a suitable flange for mounting in a cabinet or other appropriate structure. The removable cover plate I is provided with openings through which the push bars protrude and reciprocate freely. Casing I is integral with the cover plate and is a housing for the illuminating elements. Fig. 2 is a cross-section of the entire assembly showing the outer frame I, the cover plate I and the rear frame I in their normal operative positions.

An exploded view of one of the push bar assemblies 2 is shown in Fig. 5, comprising a T member 9, a printed title strip 1, a transparent plastic or glass magnifier I and a metal housing 9. The metal housing 9, which holds the magnifier and title strip in their proper positions over the T shaped member 6, is provided with an aperture II at one end for the passage of light. A side view of the push bar assembly in its normal inoperative position is shown at c, Fig. 2. The push bar 2 is held in its normal rest position by spring i l acting against cotter pin ll, which pin is inserted through the stem tical movement of the latch plate, which movement will be controlled as hereinafter described.

Lateral latch springs I! are held in spaced relationship on plate l2 by screws l9 in cooperative relationship with the protruding stems of the T members 9. The two vertically spaced bars I! are provided to retain the free ends of the springs Ii in close proximity with the rear frame 5, shown in Fig. 4.

Fixed to the movable plate l2, Figs. 3 and 4, are two supports i9 for rod 29. Electric solenoid 2| is mounted to rear frame through clearance holes 91 in the plate i2, Figs. 2 and 3. The plunger 22 of the solenoid is normally urged outwardly by spring 23 attached to pillar 24, said pillar fixed to the rear frame 5 through clearance hole 99 in plate l2. The outer end of the magnet plunger 22 is slotted at 29, Fig. 2, to permit a wide range movement of the plunger. At the end of both the inward and outward movement of the plunger the rod 29 is engaged for relatively short movement in either direction, thus when the solenoid is not energized, the plate and latch springs attached thereto will be held in their upward position, (shown in full lines), by the action of spring 23. Under these conditions none of the push bars will be retained in their depressed positions. However, when the solenoid is energized, its core will move through its full range inwardly and at the end of said movement the plate i2 and all of the springs l9 will move downwardly to the position shown in dotted lines, Fig. 3, with the ends of the springs l5 depressed against the upper portions of the push bar stems. When, under these conditions, any one of the push bars is manually depressed against the action of the stem springs Ii, it will be retained in its depressed condition because of the engagement of the outer end of a spring I! with notch 29, Fig. 5, cut in the upper portion ofthestemofeachpushbar.

It is obvious when the solenci'd 2l' isde-energized the core will be rapidly moved upwardly by thespring 29, and a hammer blow imparted to the rod 29 and thence to the plate l2, which resulting movement will cause pins 21, aflixed to plate l2, to contact and restore each spring I! to its normal inoperative position, thus simultaneously releasing any push bars whose stems may have been latched by springs I 5. A single pole double throw spring switch 29, 29, 99, Fig. 4, is mounted to the rear frame I in cooperative relationship with the end of the stern of each push bar 2 for electrically controlling the selective device to be hereinafter described. Each switch is arranged to have switch springs 29 and 29 normally closed when the push bar is at rest position. When any push bar is fully depressed,

(shown in dotted lines, Fig. 4), the center switch spring 29 is moved to break contact with switch spring 29 and make contact with spring 99, (the electrical action of which to be hereinafter described).

The three operating positions assumed by the pusli bar are shown in Fig. 2 at a, b, and c. The push bar at a is shown depressed its full extent with switch spring 29 moved out of contact with switch spring 29 and into contact with switch spring 99.

At b a push bar has returned to its latched position with the contact between switch springs 29 and 29 again closed and the contact between switch springs 29 and I. open.

Position 0 shows the push bar in its normal outward illuminated position. Assuming that a push bar is depressed when the solenoid 2| is energized, then upon releasing the push bar 2, the stem will return suiilciently far to cause the center spring 29 to break contact with spring 29 and again make contact with springjl. However, further return movement of the push bar is prevented by the engagement of latch spring I! with the notch 29 in the stem, as shown in the left hand full line view in Fig. 4.

Referring to Fig. 5, it will be observed that the transparent plastic or glass magnifier 9, (which in eflect is a cylindrical convex lens) has suillcient curvature along its front surface to cause a pre-determined degree of magnification to. appear when it is placed in proper relationship with the printed or written title strip I. This feature is better illustrated in Fig. 1, where a portion of the magnifier is broken away to show the effect of the magnification.

All of the push bars are artificially illuminated by a plurality of electric lamps 3|, Fig. 4, which lamps are covered by a suitable opaque casing 4, which casing is provided with a series I of apertures 32. Each aperture is located adiacent to a push bar and arranged so that the aperture l8 in the push bar housing is adjacent to and coincides with the casing aperture 32 when the push bar is in its normal outward position. Thus, light from the lamps projects through the aperture in the casing and through the aperture in the bar housing into the transparent magnifier. The resulting reflection, diffusion and refraction serve to illuminate the printed or written title strips 1. Thus, assuming all push bars are in their normalin'operative positions and the lamps 3| lighted, all of the title strips will be clearly illuminated. When any one of the push bars is manually depressed for a selection and latched in its depressed position, it is apparent that the aperture l9 will have moved to a position beyond the aperture 92, thus cutting oi! the light from the title strip. This action provides a double indicationthat-the push bar has been operated in'that the selected push bar will stay in its depressed position and will lack illumination.

An alternate method for controlling the illumination oi the individual push bars is shown in Fig. 6,'utilizing an individual lamp tl-a associated with each push bar. Casing 4- is provided with opaque partitions completely enclosing each lamp with the exception of a transparent or translucent window 93 provided in the casing adiacent to the end of each push bar 2-41. Two additional normally closed switch springs 94 and 99 are added to the single pole double spring throw switch 29, 29, 99 associated with each push bar 2-4 to control through an electric.

circuit corresponding lamps 9la to be hereinafter described. Fig. 7 shows the switch springs 9 and ll in their normal closed positions. The lamps ll-a and switch springs 94 and 39 are parallel connected with conductors to transformer 94. Thus, when any of the push bars are held in their depressed positions a lamp Il-a corresponding to the particular push bar is extinguished and the illumination oi the title strip 1 is decreased, shown in Fig. 6. The housing aperture I9a is necessarily sufllciently large to transmit light through the magnifier to the title strip regardless of the position of the push bar.

When utilizing the above described alternate illuminating system, shown in Fig. 6, the normally closed switch springs 99, 35 complete individual circuits to lamps 9la which are normally lighted, thus lighting all of the title strips 1. When any particular push bar is depressed the contact between switch springs 34, 95 will be broken, thus extinguishing the particular lamp corresponding to the depressed push bar and decreasing the illumination to that particular title strip. It is obvious when utilizing the alternate method that the opaque housing 9 and its aperture i9. Figs. 5 and 6, are unnecessary, hence, the magnifier element 9 and the opaque housin 9 can be made as a single transparent element, if desired.

Fig. 7 shows the electrically operated multi coin receiver adapted to operate with coins three diilerent denominations, the stepping or counting unit, three sets of switch springs 29, 29, 90 and a group of remote electromagnets corresponding with the aforesaid switch springs, it being understood that the magnets 36 represent the device to be selectively operated by an electrical impulse of lire-determined duration.

Fig. 7 also shows the switch springs 94, 39 including the electrical circuit for the alternate method of illumination previously described and shown in Fig. 6.

Although the control apparatus will be described associated with a coin control mechanism, it is obvious that the coin control features may be eliminated or replaced by other well known means. Coin chutes l1, 39, 39 are provided for the deposit of coins of three different denominations by well known means not shown. Five momentary contact coin switches 40 are spaced along the length of the multiplecoin chute. It will be noticed that the first chute 91 is provided with five spaced notches 96 into which the coin switch levers ll, l2, 49 of all coin switches project. The central chute 39 is provided with two notches into which coin switch levers l2 and 43 project. The chute 99 is provided with only one notch into which the coin switch lever 49 projects. It is apparent that when an appropriate coin is dropped into chute 91 the influence of gravity will cause the coin to strike the coin switch levers and momentarily and successively close all live switches. likewise, when an appropriate coin is dropped into chute 99 two switches will momentarily close, and when an appropriate coin is dropped into chute 99 one switch will be momentarily closed. Thus, the total denomination and total number of coins inserted at any one time will be measured by the total number of times any of the coin switches are closed.

The stepping wheel 44 is normally urged by spring II in the direction shown by the arrow and is prevented from rotation by escapement pawl 96. The armature ll of the escapement pawl is restrained from cooperative relationship with magnet 99 by spiral spring 99. The ends of said spring are attached to the pawl 49 and the fixed'pawl pivot stud respectively. Thus the pawl and the armature 41 are normally urged in a counter-clockwise direction. Normally closed switch 90Il is held in its open position by insulated stud 52 fixed to stepping wheel 94, when said wheel is in its normal inoperative rest position.

One side oi the electric power source L-L is connected through conductor Bl to one side of all the momentary coin switches. The other side of the electric power source is connected through ballast resistor 59, conductor 55, electro-magnet 48. conductor 59 to the remaining side of all the momentary coin switches 40. Consequently, each time any one of the coin switches is closed once, the stepping wheel will advance one tooth in the direction shown by the arrow and will advance a live tooth movement, a two tooth movement and a one tooth movement when appropriate coins are inserted in chutes 31, I9 and 89 respectively. It is alsoapparent that a plurality of like coins may be inserted at substantially the same time and the total value recorded by advances in the stepping wheel up to the limit of the number of teeth available.

When the stepping wheel is advanced one tooth from its rest position the switch 59-" will close and supplyelectric energy to the latching solenoid 2| through conductors 59, 51, i9, i9 and 50, which will result in the latching plate I! carrying latch springs i5, Fig. 3, to assume its lowermost position. The restoring elements for the stepping wheel comprise solenoid 9i, solenoid core 92, link 63, latch 64, latch stop pin 69, latch spring 99, guide pin 91, restoring spring II. A normally open impulsing switch 99|9 is positioned in cooperative relationship with a bell crank H. An arm of the bell crank is positioned in the path of the downwardly movable projection 12 of the link 93. When the solenoid Si is energized the link 63 will overcome the tension of spring 68 and move the link to its extreme downward position. In so doing the projection 12 will contact bell crank II and momentarily close the switch 69-19, the period the switch remains closed being dependent upon the width of the projection I2. Simultaneously the latch 6|, under the influence of spring 69, will engage with one of the teeth of the stepping wheel 44. When the magnet 6| is de-energized the pawl will move the stepping wheel in a direction opposite to the arrow 9. distance equivalent to one tooth and as the link assumes its extreme upper position pin will move the latch 64 out of the path of the teeth in the stepping wheel.

It is to be noted that the projection 12 in contacting the bell crank 1| in its return movement will not close the impulsing switch 66-10. Relay magnet 13 is in operative relationship with normally open switch 14-15, which switch completes a power circuit through solenoid 6| by conductors 60, 69, 16 and 11. Resistor 18 is in series with conductor 18 and arranged to be momentarily short-circuited by switch 68-10 through conductors 80 and 8|.

Referring to the push bar switches 28, 28, it will be noted that each switch spring 80 is connected to a corresponding electro -magnet 66 and the first spring 28 in the series is connected to the next succeeding spring 26 of each of the control switches by conductors 82. Conductor 83, which is common to all of the control magnets 36, terminates atthe switch spring 60-5l.

The magnets 36 represent the initiating parts of the device to be controlled. 'For example, in several types of selective record changers the se lective features of the mechanisms depend upon short duration magnetic impulses, hence, the

present invention is directed to the selective control of the magnetic force which results from the selective operation of the magnets 36.

The schematic circuit associatedwith the alternate method for illuminating the push bars, shown in Fig. 6, is added to Fig. "1. Power is supplied to a voltage reduction transformer 80 by conductors 60 and 85, one side of the secondary of said transformer being common to an connected with all signal lamps 8l-a. Y

The springs 34, oi all switches, are connected to the remaining side of the transformer 84. Each switch spring is connected to a lamp fill-a, thus, when a push bar is pushed into its latched position, its corresponding switch 34-35 will be opened, extinguishing the lamp 3l-a related to the depressed push bar.

The operation will be described by assuming that the push bars are illuminated by the first method of illumination, shown in Fig. 4. It will be assumed that an operator deposits appropriate coins in chutes 31 and 88, Fig. 7. Thus it is apparent that by the action of the circuit to the magnetic escapement, the stepping wheel will be advanced seven teeth, which will entitle the operator to any seven selections indicated on the control panel in Fig. 1. Following the initial movement of the stepping wheel 46, the switch 56-5! will close, energizing solenoid 2| Fig. '1,

moving plate l2, Fig. 3, to its lowermost position,

shown in dotted lines. The operator may then push any seven of the selections indicated in Fig. l by successively depressing the push bars carrying the titles desired. As each push bar is depressed it will first assume a position a, Fig. 2, and then temporarily return to position 1).

Again referring to Fig. '1, and assuming the push bar stem (1 has been depressed, the switch spring 29 will break contact with switch spring 28 and remain in contact with spring 30 so long as the push bar is held fully depressed, consequently a circuit will be completed from one of the power lines L through ballast resistor 53, relay 13, resistor 16 and one of the control magnets 36 to be operated, through switch and return to the other side of the power line.

Although one bar only is operative at a time, bars pushed in succession will be retained in their depressed positions, thus eliminating the necessity for the operator to remember which bars were operated. It is apparent from the action of the circuit and mechanism employed that after the proper number of bars have been depressed they will all'automatically return to their initial positions.

The resistance value of the resistor 18 is fixed high enough to prevent sufllcient current at this instant to energize the magnet 86 enough to attract its armature (not shown), but this current value is sufllciently high to operate relay magnet "[3130 close switch 14-15. The closing of the relay switch at the next instant will energize solenoid 8| and cause the link 63 to move downwardly through its full range. In so doing, the projection 12 will move the bell crank 1| to momentarily'close switch 68-10, which momentarily short-circuits resistor 18. The circuit through the selected magnet 86 will receive a high current surge with a value sufllciently high to operate its armature (not shown), thus selectively initiating the device to be controlled.

Immediately following the release of a push bar by an operator it will return to a position shown in full lines in the left-hand part of Fig. 4

by the action of spring II, but will be restrained from returning its full extent by the action oi latch spring i5, Fig. 3, engaging the notch 26 in the push bar stem 6. The switch spring "will simultaneously break contact with spring and reestablish contact with spring 28. Thus the relay 13 and solenoid 6| will be de-energized and returned to their normal inoperative positions, and in so moving, the latch 64 carried by link 68 will return the stepping wheel one tooth, which in effect subtracts one selection from the group of the seven selections available.

While the selected push bar remains in a depressed position, the illumination on the particular selected bar and title strip will have been decreased by the action or the apertures 82 and I8, shown in Fig. 4, previously described. when a total of seven selected push bars have been suc-' cessively depressed, as described above, the above operations will be automatically repeated until the stepping wheel 44 has been returned seven teeth, which'places it in its original rest position. When the stepping wheel 44 has been returned seven steps, corresponding to seven teeth, switch 50-5l will be opened, preventing the completion of any of the circuits through any spring switches 28, 29, 80 and the control magnets 86. The opening of switch 50-5l also simultaneously de-energizes solenoid 2|, which will permit the plate I 2 to assume its upward position through the action of spring 23, thereby releasing the entire selected group of seven depressedpush bars enabling them go assume their normal outward inoperative posilOIlS.

When a push bar is intentionally held in its depressed positionimproper operation will not result as the link 63, under the influence of the solenoid 6| will move downward and likewise the momentary switch 69-10 will momentarily close, and since the link will stay in its downward position-as long as solenoid 6i remains energized, it

magnet it. The remainder of the spring switches would be electrically inoperative because of the open circuit connection therebetween.

Having described my invention. I claim:

i. In an indexed control apparatus for manually and selectively operating a selective device, a supporting means, a plurality of title bearing push bars yieidably retained in said supporting means, means associated with eachbar and the said supporting means for urging said bars into a predetermined outward position, a latch abutment integral with each of said bars, a locking means yieldably affixed to said supporting means in the path of movement of all said latch abutments for enga ing said abutments, including additional means affixed to said locking means for normally urging said locking means into a predetermined position out of engagement with each of the aforesaid abutments, an electro-magnet positioned on'said supporting means and cooperatively related to said locking means for moving the said locking means against the restraining action of the aforesaid additional means to move said locking means into the path of each of the aforesaid abutments when energized to effect engagement between said locking means and said abutments and to retain in displaced positions any depressed push bars and to permit the said means associated with each of said push bars to return any depressed push bars to their normal outward positions when the said magnet is de-energized.

2. In an indexed control apparatus for manually and selectively operating a selective device, a supporting frame, a manually operable push bar yieldably supported in said frame, a title member positioned on the face of said push bar, a substantially transparent housing having integral stop means for engagement with said frame and adapted to retain said title member on the face of said push bar, a spring means operatively related to said frame and the said push bar, said spring means normally adapted to urge the said push bar in a predetermined outward position with respect to said frame with the aforesaid stop means in normal contact with said frame to hold said title member, said housing and said push bar in normal relation with each other.

3. In an indexed control apparatus for manually and selectively operating a selective device, a supporting frame, a manually operable push bar yieldably supported in said frame, a title member positioned on the face of said push bar, a housing having a substantially transparent magnifying outer face adapted to cover and retain said title member on the face of said push bar, said housing including integral stop means adapted to engage said frame and limit its movement to a predetermined distance with respect to said frame, a spring means operatively related to said frame and the said push bar, said spring means normally adapted to urge the said push bar into a predetermined outward position with respect to said frame with the aforesaid stop means in normal contact with said frame to hold said title member, said housing and said push bar in normal relation with each other.

4. In an indexed control apparatus for manually and selectively operating a selective device, a supporting frame having a detachable cover plate, a plurality of manually displaoeable push bars yieldably supported in said frame, said cover plate having openings corresponding to the said push bars and arranged for their free passage therethrough, a title member positioned on the face of each said push bar, a substantially transparent housing positioned over the face end of each said push bar, said housing provided with integral stop means adapted to engage said frame and said cover plate to limit to a predetermined distance the movement of each said push bar. spring means operatively related to said frame andeachsaidpushbarfornormallyurgingcach' bar to an outward position determined by the said stop means to hold each said housing and each said title member in close proximity with each corresponding push bar.

5. In an indexed control apparatus, a displaceable push bar, a frame for supporting said push bar, said push bar adapted to be manually displaced a predetermined distance, a title member afilxed on the face of said bar, a substantially transparent cover adapted to engage the face end of said push bar and retain said title member in normal position on said bar, a source of electric illumination positioned in said frame adjacent to said title member, a light-confining means positioned in said frame between said title member and said source of illumination whereby light from said source of illumination normally pro- Jects through said means to normally illuminate said title member when said push bar is in its normal outward position and whereby the displacement of said push bar will move the said title member to an inward position with respect to said frame and said means out of normal range of the light projected from said source of iilumination to decrease the illumination of the said title member.

6. In an indexed control apparatus for manually and selectively operating a selective device, a manually displaoeable push bar, means for yieldably retaining said push bar in a predetermined position, a title member positioned on the face of said push bar, a substantially transparent outer member positioned over said title member and adapted to retain said title member in close proximity with the face of said bar, a light-restricting window integrally affixed to one end of said outer member, a source of illumination, a second window fixed upon the aforesaid means and interposed between the said source of iilumination and the said light-restricting window, said window having an opening normally coinciding with the opening in the aforementioned lightrestricting window, whereby the said title member is normally illuminated by light projected from said source of illumination'through both said windows and said end of said outer member and whereby said title member is adapted to receive a lesser degree of illumination when the said push bar and said light-restricting window are moved to their displaced positions substantially beyond the range of light transmitted from the said source of illumination through the opening in the aforesaid second window.

7. In an indexed control apparatus having a manually displaoeable push bar, a title member positioned on the face of said bar, a substantially transparent outer cover positioned over said bar and adapted to retain the said title member in close proximity with the face of said push bar, a normally lighted electric lamp positioned adiacen't to said bar for normally illuminating said title member, a light-confining means interposed between said push bar and said lamp, a normally closed electric switch cooperatively related to the said push bar adapted to be opened upon the displacement of said bar, a source of electric energy, an electric circuit means running from the source of electric energy through said normally closed ly and selectively operating an electric selective device having a plurality of electric responsive circuits, a plurality of manually displaoeable push bars corresponding in number to said responsive circuits, a source of electric energy, a frame for yieldably retaining said push bars including means for independently urging each'of said push bars in a normal position, a plurality of electric switch means corresponding with and independently operatively related to said push bars, electro-magnetic latching means for engaging and holding any of said bars in their displaced positions when energized, electric pulsing means for producing electric impulses of predetermined duration when energized, electric circuit means connecting said source of energy, said switch means, said latching means and said electric pulsing means with the aforesaid electric responsive circuits of the said selective device whereby the displacement of any of said push bars will operate their corresponding switch means to substantially simultaneously energize the said electric circuit, the said pulsing means, and the said latching means and momentarily energize the said electric responsive circuits corresponding to the depressed push bars and to hold said push bars in their depressed positions.

9. In a coin-controlled indexed control apparatus for manually and selectively operating an electric selective device having a plurality of electric responsive circuits, a plurality of manually displaceable push bars corresponding in number to said responsive circuits, a frame for yieldably retaining said push bars including means for independently urging each of said push bars in normal position, a plurality of push bar switch means corresponding with and independently operatively related to said push bars, a step by step electric coin computing means proportionately responsive to the insertion of coins, said' coin computing means including an electromagnetic restoring means and 'a momentary switch means operatively related to said restoring means, a circuit networkconnecting said push bar switch means, said computing means, said momentary switch means, said restoring means and the said responsive circuits of said selective device, whereby the deposit of coins in said step by step computing means will advance said means a number of steps equivalent to the predetermined value of said coins and whereby the manual displacement of any push bar will operate its corresponding switch means and complete a circuit in part of said circuit network to said restoring means to return said computing means one step and simultaneously operate said momentary switch means to momentarily energize through said circuit network said electric responsive circuit in said selective device corresponding to the displaced push bar.

10. In a coin-controlled indexed control apparatus for manually and selectively operating an electric selective device having a plurality of electric responsive circuits, a plurality of manually displaceable push bars corresponding in number to said responsive circuits, a frame for yieidably retaining said push bars including means for independently urging each of said push bars in normal position, a plurality of push bar switch means corresponding with and independently operatively related to said push bars, a step by step electric coin computing means proportionately responsive to the insertion of coins, said coin computing means including an electromagnetic restoring means and a momentary switch means operatively related to said restoring means, a current limiting resistor,

a circuit network connecting said push bar puting means one step and to simultaneously operate said momentary switch means to shortcircuit said resistor and complete and momentarily energize through said circuit network said electric responsive circuit in said selective device corresponding to the displaced push bar.

11. In a coin-controlled indexed control apparatus for manually and selectively operating an electric selective device having a plurality of electric responsive circuits, a plurality of manually displaceable push bars corresponding in number to said responsive circuits, a title member covered by a substantially transparent magniiler afilxed to the face of each said push bar, a panel means for yieldably retaining said push bars in spaced relation with each other, a-source of electric illumination in said panel means ad- Jacent to each said push bar adapted to normally illuminate the said title member when said push bar is in its normal outward position, a fixed light-confining means positioned between the said source of illumination and each of said push bars arranged to restrict and decrease the illumination to each said title member when its corresponding push bar is displaced, an electromagnetic latching means operatively related to all said push bars and adapted to hold said push bars in their displaced position only when energized, a source of electric energy, a plurality of push bar switch means corresponding with and independently operatively related to said push bars, a coin responsive electric computing device including electrc-magnetle restoring means, said computing device adapted to operate step by step in accordance with a predetermined value of coins inserted, an electric relay, a momentary switch operatively related with the aforesaid restoring means, a resistor, a circuit network connecting the source of electric energy, said magnetic restoring means, said momentary switch, said resistor, said relay and said push bar switch means to the responsive circuits in said selective device whereby the computing device will respond a number of steps equal to the predetermined value of the coins inserted to condition said circuit network for the operation of a number of push bars corresponding to the aforesaid number of steps determined by the value of the coins inserted in said computing device and simultaneously energize the said electro-magnetic latching means and whereby the displacement of each of the predetermined number of push bars will operate its corresponding switch means and energize said relay through the said circuit net work to energize said magnetic restoring means to return the computing device one step and simultaneously and momentarily operate said momentary switch in said circuit network to shortcircuit said resistor to momentarily energize an electric responsive circuit in said selective device corresponding to the depressed push bar and to hold said push bar in its displaced position.

12. In an indexed control apparatus for manually and selectively operating an electric selective device having a plurality of electric responsive circuits, a plurality oi manually displaceable push bars corresponding in number to said responsive circuits, a title member positioned on the face of each said push bar, a substantially transparent cover positioned over said title member on the face end of each said push bar, a panel for yieldably retaining said push bars in spaced relation with each other, including means for independently urging each said push bar in one direction, a source of electric energy, a plurality of switch means affixed to said panel corresponding with and independently operatively related to said push bars, each said switch means adapted to be operated upon the displacement of its corresponding push bar, an electro-magnetic responsive means for momentarily energizing an electric circuit, a circuit network connecting said source of electric energy, said electro-magnetic responsive means, said push bar switch means to the said electric responsive circuits in the said selective device, said network including a series connection between each said push bar switch means for preventing more than one switch to be operated simultaneously, said network also including a common connection from one of said switch means through the said electro-magnetic responsive means to a connection common to the plurality of electric responsive circuits in said selecting device to complete said circuit network whereby the displacement of any of said push bars will actuate its corresponding switch means to energize through said circuit network the said electro-magnetic responsive means to momentarily energize a said electric responsive circuit in said selecting device corresponding with the said displaced push bar.

LLOYD J. ANDRES.

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