Electrically-operated entrance



June 24 1924. A- J MILLER 1,499,180 ELECTRICALLY OPERATED ENTRANCE Filed Feb. 27, 1923 w 3 Sheets-Sheet 2 X I 4' v v 5? J 15 15-- l6 7 rwrm rrTrrfrrnnnnnnnnn nn nnnnn 2:); 20. 20 Z7 27 c: I t K f .90 w 24 2.5 52 a; $59 17 z 1 i7 39' 24 Patented June 24, 1924. ARTHUR J. MILLER, or LELAND, ILLINOIS. ELEGTRICALLY-OIPERATED ENTRANCE. Application filed February 27,1923. Serial No. 621,633. To all whom it may concern: Be it known that I, ARTHUR J. MILLER, a citizen of the United States, residing at Leland, in the county of La Salle and State of Illinois, have invented certain new and useful Improvements in Electrically-Open ated Entrances, of which the following is a specification. My invention relates to means for automatically opening and closing a gate, door, or the like. I An important object of the invention is to provide apparatus of the above mentioned character, so constructed that when a vehicle, such as an automobile, is driven upon a platform, the gate or door will automatically move to the open position and remain held in this position, until the vehicle passes upon another platform arranged upon the 2 opposite sideof the gate or door, atwhich time the gate or door will be automatically closed. Other objects and advantages of the invention will be apparent during the course of the following description v In the accompanying drawings forming a part of this specification, and in which like numerals are employed to designate like parts throughout the same, Figure 1 is a plan view of apparatus embodying my invention, 1 Figure 2 is a plan view of the box of the platform, showing the operating means therein, 1 Figure 3 is a transverse section taken line 3 3 of Figure 2, Figure 4 is a side elevation of the gate, Figure 5 is a central vertical longitudinal section through the gear casings, parts broken away, I Figure 6 is a horizontal section taken on line 6-6 of Figure 5, Figure 7 is a perspective view of a seg 'ment and contact associated therewith, Figure 8 is a diagrammatic View of the apparatus and circuits included therein, showing one circuit energized to open the gate with the lower platform depressed, the traffic being in the direction of the arrow, Figure 9 is a similar view showing the upper platform depressed and the circuit closed to lower the gate, the traffic being in the direction of the arrow, V 1 Figure 10 is a similar view showing the Oil -; upper platform depressed and the circuit closed to open the gate with the trafficin the direction of the arrow, and, a Figure 11 isa similar view showingthe lower platform depressed and the circuit closed to close the gate with the traflic in the direction of the arrow. In the drawings, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 15 designates a pair of posts or uprights, carrying the movable gates or door 16. These gates preferably embody-longitudinal beams 17, connected by transverse strips-or elements 18, pivoted thereto-at 19. The longitudinal beams 17 are pivotally connected with the posts 15, as shown at 20, to swing in a ver-; ticalplane. It is thus seen that the gates l 36Olswing vertically transversely of the road As more clearly shown in Figure 5, the lowermost beams 17 are rigidly connected with gears 21, which are pivotallysupported'by the shafts or pivots 20, These gears are engaged by a toothed segment 23, pivotally supported at 2-4. The gears 21 and toothed segments 23 are suitably mounted within casings or box 25, as shown. \Each toothed segment or gear'23 has its lower end depending downwardly below th'e pivot 24: and is pivotally connected with a rod or pitman 25, extending outwardly for pivotal connection with the crank 26 of a shaft 27, suitably journaled in the box 25. The shaft 27 has a gear-28 rigidly secured thereto and this gear is, driven by a similar gear 29 30 is suitably journaled in the box 25. The shaft 30 is driven by a gear 31,.rigidly secured thereto, and this gear engages a gear 32 rigidly mounted upon a shaft 33. The shaft'33 has a larger worm gear 34; rigidly mounted thereon, which is driven by a worm gear 35, carried by a transverse shaft 38. c As clearly shown inFigure 4, the transverse shafts 38 are connected with the outer ends of the armature shafts of motors 39 and 39, and the inner ends of these armatur shafts are rigidly connected by ashaft 40, whereby the lmotors are mechanically connected. The armatures of the motors will rotate together, andone'motor will be receiving current whilectheother will not, as will be explained. The motors 39;and '39" and shaft 40 and associated elements may be arranged within a space 41, between 90 rigidly mounted upon a shaft 30. The shaft CJi the posts which space, tmay ,be covered by a plate 42 or thelike. In Figure 1, A and B designate platforms, upon which an automobile or like vehicle is to be driven? These platforms are arranged upon oppositesides of the gate and "at suitable distances therefrom. Each platform is arranged-=overa-box or casing; 43, suitably sunk into the road bed so that the tpl'atitorm is substantia-ll-yj'fiushwith the u per surface of the road-beds As more 0 "rlyt-shown in Figurefi dlvergmgr levers r have their outerends -pi-voted at corners in the hox -43, as wshown at=45 to swing; in vertical planes. The diverging; ends of these levers are pivotally; connected with eat-h other and with a depending link 46 'by otal A connection with a vertically swinging; lugs 53,which-"rest upon the levers i l and 51,: whereby these levers support the platform, When there is no load upon the platform; asindi-cated in-Figur'e 3, the lever 48 is 1held" depressed, and. the: platform is elevated. The numerals 54 and 54;: designate a switch --elenient,-' pivoted upon an insulating stip'port 55; and adaptedtoengage anddisengage a' coacting: switch element 56 and '56. Eaclisw-itGh element-5 and :54" is pivotally connected; with a link- 57; insulated there from, This link -is pivoted to the" free :end of -t11 =;:1ever 48; It is thus seen that when the platforinds depressed, the switch elemerit i 54 will rise and-engage the switch element 56".: i The numerals 58- and'58 designate curved or segmented contacts which are rigidly mounted upon the segmental-gears 23, and insulatedi therefrom- Each contact is -'provided at one end: withan: insulatingiportion 59. The contacts-:58 and' 58 are adapted to be engaged b zpa contact 60 and ;6(), carrijed=byja-f-support -61 andinsulated there- Attentien being gcal-led now --to Fignres --8 ts: 11 itiwi-l l:beiseen that a -wi-r e :61 has electrical- -connectiomwith th contact 58 ai'id this fwire extends 1 across i and has connection "w'i-tlta :wire 62, which is electrically with one'pole of the source'of current 66, the "opposite pole of whichds connecte'd with a wire 67 which is electricallv connected with the motor 39. The opposite pole of thmotdr is connected with a wire 68, which is connected at 69 with a. wire 70. This wire 70' is connected with the contact element 60. The wire 70 extends across and is connected at '71 with a wire 72 which is connected with the contact element 60; vThe-- wire 70 is also connected at 71 with-a wire 73, electrically connected with the contact 56, and this :wire is connected with one pole of themotor 39 i A wire is connectedwith the oppositewpole of the motor and is connected with one pole of a source of-current 76. The opposite pole ofthis source of current isconnected with a wire 77, which is connected with one end of the wire 61 as shown at 78. Figure 8 shows the vehicle travelingin the direction of the 1 arrow, froniright to left, and as depressing the platform A. This'closes the switch element 54. Current will now pass from one poleof the :source ot current 66, through wires 65, switch ele ment 54 wire 64, contact segment 58, con-- tact 6161116111560, wire 70 wire '68, through motor 39 and wire67, back-to the opposite pole of the source of current-66. The motor 39 will now operate and the gates 16 will be elevated. When the gateissufficiently elevatedthe vehicle is driven from the platform A and passes through the gate and the switch element 54 will then disengage the switchelement-56. The gate will be held in the open position, by=virtue of the worm wheel 35 BligagillgtllflWODD WhGEl 34. When the vehicle passes upon the platform B trav eling in the direction ofthearrow, Figure 9 a circuit will be closed and the motor :39" willoperate toclosethega'tesr The switch. element 54; now engages the switch element 56, andthe motor 39-, will-be energized-and close the gate. When the gate :is open, the contact'segment 58 disengages the contact 60 while contact segment 58 engages-its contact 6O as clearly shown in :Figure 9. In the closed circuit for driving the motor 39', current-passes from one-pole of-the source of current '76 througlr wire '77, wire 62; contact-segment 58- contact 60; wire 72, wire73 switch e1ement5 i wire 74;, motor 39 andIWireZ-S backte the-opposite pole-of th source of current 76, In F ig'ure 10, thegate iisqregarded asiclosed andfthe. automobile is driven upon the platf-orm-.-B; with thetraiiic in-thedirection of the arrow-.- This-will bring the switch element-M into engagement with-the switch element 56 and a circuit will beclosed for energizing the. motor 39 and raising lthe gate. In this closed-circuit current flows front-one pole of the -source of current 7 6, through wire 77, wire 61, contact segment 58, contact" 60, wire to the oint 71, wire 73, switch element 54', switc element 56, wire 74, through motor 39, and wire 75, back to the opposite pole of the source of current. The gate is opened and when this is eflected, the vehicle drives from the platformB and then passes through the gate upon the platform A. The switch element 54' will disengage the switch element 56, with the gate raised. Contact segment 58 now disengages the contact 60 while contact segment 58 engages contact 60. The motor 39 will now be energized to lower the gate, as switch element 54 engages switch element 56. In this closed circuit current will flow from one pole of the source of current 66, through wire 65, switch element 56, switch element 54, wire 64, wire 61, point 78, contact segment 58, contact 60, wire 72, wire 70, wire 69, and wire 68, back to the opposite pole of the motor 39 and then through wire 67 to the source of current 66 Particular attention is called to the fact that each crank 26, upon making one half of a revolution, will move the gate in opposite directions, up or down. It is therefore seen that each motor and associated elements is capable of opening and closing the gates, and as these motors are positively geared together, they work in harmony, each motor opening or closing the gate, depending upon th direction of the traffic. I It will also be seen that when the gates are shifted to the completely opened or closed positions, the contacts 60 or 60 will engage the insulating parts 59, thus opening the motor circuit and stop the movement of the the vehlcle remain on either platform. It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of my invention or the scope of the subjoined claims. Having thus described my invention, I claim: 1. The combination with a pair of gate gate or door elements, even though or door elements, a pair of cranks arranged near the gate or door elements, operative connections between the cranks and the elements whereby each element may be opened and closed upon a complete revolution of 5 its crank in one direction, a pair of motors for rotating the cranks for a complete revolution in one direction, a positive connection between the armature shafts of the two motors whereby either motor is capable of c rotating both cranks and hence serve to open and close both gate or door elements, circuits connected with the motors, platforms arranged upon the opposite sides of the door or gateelements, means operated e by one platform to close the circuit of one motor, and means operated by the other platform to close the circuit of the other motor. 2. The combination with a pair of ate 7 or door elements adapted to be shifted to opened and closed, positions, a pair of cranks arranged near said elements, operative connections between the cranks and elements whereby the elements are opened and closed upon a complete rotation of the cranks, gearing for rotating the cranks including worm gears, shafts having worms engaging the worm gears, a pair of motors having corresponding ends of their armature shafts connected with said shafts,'a shaft arranged between the motors and connecting corresponding ends of the armature shafts whereby eachmotor may be driven to open and clos both of said elements, cir- 8 cuits connected with the motors, platforms arranged upon the opposite sides of said elements, means operated by one platform to close the circuit of one motor for opening the gate elements, meansoperated by the 9 other platform to close the'circuit for shifting said elements to the closed position, means for opening the circuit of one motor when the said elements are shifted to the open position, and means for opening the circuit of the other motor when said elements are shifted to the closed position. In testimony whereof I aflix my signature. ARTHUR J MILLER.-



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