Патент USA US2407950код для вставки
Sept. 17, 1946. ‘A, A_ CORCANGES‘ ' ‘2,407,949 RADIO CONTROLLED SIGNAL AND ILLUMINATING SYSTEM FOR AIRWAYS Filed Nov. 15, 1943 3 Sheet's-Sheetl i" \5 J L“ ?lfr‘ed A'Caréany'es. all/Wavy 3mg‘ sel?- 17, 1946. A. A. CORCANG'ES 2,407,949 RADIO GIONTROLLED SIGNAL AND ILLUMINATING SYSTEM FOR’ AIRWAYS - Filed Nov. 15, 1943 V3 Sheets-Sheet 2 TM? WINU INDICATOR SWITCH m, D. C. SUPP! }’ 8WITCH 72 \ 60 a 9‘0 0 O 'r - + 5’ Inventor j/f’rea/? ‘Carma/2 25* is 725.2 - ‘by ' j ‘ Sept. 17, 1946- A. A. coRcANeEs 2,407,949 RADIO CONTROLLED SIGNAL AND ILLUMINATING SYSTEM FOR AIRWAYS‘ Filed Nov. 15, 1945 :s Shee'bs-Sheet 5 74 ‘ z 2.5‘ 251 4 12%’ , _ 6__ 28 In. vw.m WWW 15%? 2,407,949 Patented Sept. 17, 1946 UNITED STATES PATENT OFFICE RADIO CONTROLLED SIGNAL AND ILLUMI NATING SYSTEM FOR AIRWAYS Alfred A. Corcanges, Greenville, S. 0. Application November 15, 1943, Serial No. 510,386‘ 5 Claims. (01. 177-352) 2 1 the claims, do, therefore, not form a departure This inventionrelates to a system for control ling the operation of the lights on airports, air dromes, runways, runway strips, marker beacons, ?eld boundaries and the like and in general to lighting and signalling systems requiring a switch from the invention. , , Figure. 1 is a diagram for an automatic switch to be turned on or off. breaker, showing the relative positions and ar rangement in general of the elements with wir ing connection employed in this system, The main object of the invention consists in providing a control system for automatically op erating the lights of the landing strips or run ing ?eld with parallel runwaysandlighting con trolled ‘according to the present system. ways of airports, air?elds or airdromes by means of radio signals sent‘or transmitted from an ap proaching craft carrying a radio transmitter. A further object of the invention consists in providing a control system for automatically se lecting landing strips or runways of an airport or airdromes which are safest‘ for landing with Figure 3 is an elevation and partial section of the wind direction indicator or weather vane, here represented as a so-called wind-stock or sock with a clutch. or freezer. Figure 4 is a horizontal section along the line 4-4 of Figure 3. Figure 5 is a side elevation of the clutch or regard to the prevailing direction of the wind and to the direction of the incoming signal and for automatically operating the lights for the il lumination' of the selected runway or landing freezer in Figure 3. Figure 2 is a diagrammatic plan view of a land . V Figure 6 is ahorizontal section along the line E—Ei of Figure 3, and Figure 7 is a plan view of a ?eld having in tersecting runways in star-shape arrangement. Throughout the drawings the same reference numerals indicate the same details. The system according to my invention is based on a remote control operation exercised by radio signals emitted from an aircraftapproaching an air?eld, airport or airdrome which closes the cir cuits for the lights illuminating one of the land ing strips, runways or the like of the said ?eld strip, said operation being initiated and carried out from an approaching aircraft by means of radio signals sent out from said craft. A’ further object of the invention consists in automatically indicating'the proper direction of landing on the selected runway or landing strip of an airport or airdrome, which is safest with regard to the prevailing direction of the wind by means of speci?c directive signal lights, operated by the radio signal sent from the approaching aircraft. A still further object of the invention consists in providing‘a radio control system for the auto matic selection of landing strips or runways of or port and on double automatic selective oper ation controlled by a wind indicating instrument, selecting‘ the landing strip or runway which is safest with the prevailing direction of the wind, and selecting‘the direction in which the landing should take place on said landing strip or runway. For the purpose of exercising the remote con trol the aircraft may use the radio transmitter airports or airdromes and for the automatic op eration. of the illumination and the proper direc tive signalling lights of the same, which may op with which it is usually equipped and which per mits, as a rule, to transmit spoken telephonic sig the receiving arrangement, the latter,‘ however, 40 nals and telegraphic signals, using C. W, or cer tain de?nite frequencies. This transmitter being adjustable as regards the distance from equipment may be used without change and it is which it may be operated, either directionally or merely necessary to instruct the ‘pilot or oper in. all directions. ator of the transmitter as to the nature of the Further objects of the invention will be appar- , signals desired. ‘ ent from the following detailed speci?cation de The receiving arrangement is arranged on the scribing and illustrating‘ a speci?c embodiment ground and is a special arrangement adopted for of the invention. It is, however, to be under the speci?c purposes of the invention. It con stood that the description, in speci?c terms is erate with C. signals, voice or tone signals alike in accordance with the adjustment given to notito be understood in a limitative sense. tains a filter or ?lters for excluding undesirable The invention consists in the means and principles frequencies and electronic means for producing applied to‘ attain the above-mentioned objects, and is disclosed in such’ terms that embodiments of the invention other than those speci?cally de scribed will be obviousto the expert skilled in this quence relay. The latter is able to control the energization of the circuits of the lights for the landing strip illumination and of the directive art. These modi?cations as far as included in an. impulse capable of energizing a time or se 55 signal lamps. ‘ r 2,407,949 3 4 The air?eld, airport or airdrome to be used in connection with the system according to this in installation merely by a de?nite signal on a de? vention comprises a plurality of runways or land nite frequency. The output of the receiver 12a which picks up ing strips pointing in different directions. One of these strips has to be selected automatically upon the frequency transmitted from the plane passes therefore from terminals l2, l3 to filter 22 which receipt of a signal and this selection has to be made in accordance with the direction in which the wind is blowing at the time at which a land passes only a selected narrow band of frequencies ing is to be made. proved conventional connection'with said ?lter. _ as well known in the art. This frequency or fre quency band passes on to a tube IS in some ap As a rule the number of landing strips or run 10 This connection includes a grid coupling con denser l'l', a grid leak [8, a cathode by-pass re ways is limited and each strip is assigned for sistor 60 and a cathode by-pass condenser 6|, but duty during landings effected in the event that it is to be understood that any other conven the wind is blowing from one of two sectors op tional connection may be selected. The output posing each other on the compass dial. There fore in addition to the selection of the landing 15 of the tube passes through a choke coil 23 which may or may not ‘be provided with a shunting con strip itself a further selection has to be made as denser E6. Leads 81 and 82 are battery connec regards the direction in which the landing strip tions. is to be used. According to the present invention this double The condenser i9 couples the outputrof the selection is carried out by means of a wind sock 20 tube to the diode or recti?er tube 5?. whose out put circuit 83 includes the relay 2i]. . or wind stock operating a selector switch which Said relay is provided with contacts 63, 64 nor completes the circuits of the illumination lights mally open when the relay is deenergized. and of directive signal lights on the landing strip The contacts 63 and 64 control the circuit 84 which point in a direction nearest to the direc tion in which the Wind sock or wind stock is 25 of a sequence relay 2| which may be a time re lay, if desired. The contacts of this relay re pointing and makes them ready for operation. main closed when the relay has been energized, The incoming signal will then operate the lights either permanently until a further signal is re whose operative circuits have been closed. ceived or for a certain period of time. Relays of In order to avoid confusion the wind sock or wind stock has to be free to rotate the selector 30 this type are conventional constructions usually switch in any direction as long as no airstrip has been selected. However, once a selection has been made and the illumination and direction lights are on, a further change is prevented by a so-called wind stock freezer which uncouples the ' switch from the wind stock or arrests the latter and therefore prevents further operation as soon as current is ?owing through the illumination provided with contacts operated by a cam which is actuated by the relay armature. The relay contacts El, 58 thus remain closed after energization of the relay 2!. They control a circuit B9, 10, part of which is shown in Figure 2 and which establishes a connection between the source of power supply and the air?eld il lumination installation. ' ' . This circuit may'contain a switch 5!, which and directive light circuits. It is ?nally necessary to reopen the illumina 40 may be a time controlled switch in the event that the relay itself is'not time controlled. , Instead of tion and directive signal light circuit after the this switch or in parallel thereto a photocell con_ landing of the craft automatically in order to trolled circuit may be inserted at the terminals bring the air?eld into condition for further op B, A which is not illustrated as it is again a eration by remote control. This result may be conventional installation. The runway may be ' obtained in various ways. The circuits may be provided with one of those photocell switch ar opened, for instance, by a time relay operating rangements which serves to'operate garage doors after the elapsing of a certain number of minutes, , or the like, with a photocell receiving a ray of and the relay operated by the receiver may be of such type as to perform the operation. A second 50 light. When the ray is intercepted by the in coming plane, the switch 5| is opened and cuts means consists in a photocell arrangement oper the circuit thus extinguishing the runway illu ated by a beam traversing the landing strip near the ground and intercepted by the landing air The wind indicator with freezer or clutch best craft. A third means consists in using relays mination. ' - > which once energized will fall back upon receipt 55 seen in Figures 3 to 6 consists of a vane 24 pref erably in the shape of a wind stock, wind sock of a further impulse; In this case the pilot of the or wind-T; is ?xed on an upright shaft 28 revo craft has to send a further remote control sig lubly mounted in a ?xed bearing 29 and adapted nal, when the illumination of the landing strip to operate the wind- switch 25. This switch 26 serves no further useful purpose, whereby it will keeps the runways to properly lighted by lamps cause the opening of the relay operated switch. 60 35 with respect to the prevailing wind and also vAn arrangement embodying the above outlined controls the red and green lights 32, 33, respec system will now be described in detail. tively at the ends of each runway 30, see Figures Figure 1 illustrates the operation of the air strip illumination and of the directive lights 2 and 7. ' ' The wind stock freezer 25, Figure 3, is an elec thereon by means of radio transmission from an 65 tromagnetic device or clutch which will lock the incoming airplane. . vane 24 to keep the lights burning on one of the The transmitter on the ‘airplane and the re runways cr landing strips 30 as long as ‘the cur ceiver‘on the‘ground are of purely conventional rent or voltage is applied to it, that is, the lights design and are therefore not shown in the draw 32, 33, 35 will remain on until the circuit is broken ings. The transmitters on aircraft are equipped 70 by the relay 2|. The runways or landing strips with various communication means operating on 30 will, therefore, remain lighted, regardless of various frequencies, such as signals on selected momentary wind ?uctuations. gThewindstock frequencies, talking currents superposed on cer freezer 25, Figure 3, can'be wired parallel, in se tain short waves, and C. W.'communications. It ries, parallel-series, or separately to operate-its is, as a rule, desirable to operate the illumination clutch or locking mechanism used in this system. 2,407,949 6 5 quency, the receiver on the airdrome will be op ‘ This clutch preferably consists as here shown erated. It is ‘preferable to produce an audio beat tone and to pass said‘ beat tone through the ?lter to the tube It. The tube ampli?es the beat tone whichwill appear across he choke 23 which forms the load device for the tube l6‘. Choke 23 and of three disks 25a, 25b and 250, of which the for mer or top disk is ?rmly ?xed with both the vane 24 and its shaft 28, while the bottom disk 250 is ?xedly mounted as by screws and the like on top of the bearing 29, and the middle disk 25b condenser 66 are preferably tuned to resonance is slidably mounted around the shaft 28. In or der to prevent the middle disk from turning knee links 2511 are provided between disks 25b and 250. One of the disks, preferably the upper one 250. is provided with a coil having many turns of wire so that current ?owing through the coil will pro duce a strong magnetic ?eld attracting the mid» dle disk 25b. The wind stock or wind sock freezer 25a is an electromagnetic device or clutch which will lock the vane 24 from changing the runway lights when current is turned on. This electro~ magnetic device is a ?eld coil and operates in the following manner shown on Figures 3 and 4. The ?eld coil is attached to the shaft 28 and also to the wind vane 24. When the current is ap plied to this ?eld coil by wires 1 I, ‘I2 a powerful magnetic ?eld is produced thus magnetizing the top disk 25a of the wind stock freezer. Disk 25b is attracted and disks 25a and 251) are locked by the interengagement of the clutch teeth 25]‘, on their adjacent surfaces. As long as the current is on, the vane 24 will be stationary as it is locked ‘to the ?xed bearing '29 through the intermediary of the parts 28, and 25a, 25b, 25c and 25d. In Figure 2 is shown the arrangement of the lighting arrangement for a plurality of runways together with wiringconnections and wind indi cating switch and Figure 7 a similar arrangement for a star-group of airways. A number of illu minating lights 35 are placed in parallel rows along the sides of the runways and a red light 32 and a green light 33 provided at the ends of the runways. Proper wiring 3'! in an electric circuit with the beat note thus increasing the voltage passed on to the diode recti?er tube 52. The pos itive half cycles of the signal, for instance, flow through relay 20, and close contacts 63, 64. Thereby the circuit of the relay 2! is closed and this relay operates, with its contacts remaining closed after operation. . ' If the pilot does not want to land after hav ing surveyed conditions, he sends a second im pulse ‘which will again operate. relay 2! but will separate the contacts now closed so that illumi nation ceases again. If the pilot however does not send a second sig nal the lights will remain on until they are ex tinguished either by one of the time controlled devicesor by the photocell arrangement, When the circuit 59, ‘it has been closed, the D. C. circuit ‘supply for the lights will be con nected (at ‘H, Ila) with the supply conductors 85, 86a of the ?oodlights and directive lights of the runways and will therefore connect these lights with the selector. Simultaneously also coil 25 of the windstock freezer is connected across the supply wires (at III, 12). The previously de scribed selective operation of the lights may therefore take place. ‘ It is to be understood that the invention as here disclosed is not limited to the details here described and shown, but that the same may be varied widely without departing from the spirit of the invention as de?ned by the subjoined claims. . Having described the invention, what is claimed is here shown for the illuminating lights 35 of each runway terminating with arcuate contact as new is: 1.. In an automatic lighting system for air strips 38 provided in a circle of the switch box dromes and air?elds having a plurality of land_ 26. ri‘he circuit is completed through a double or ing strips provided with directive head lights at diametrical arm 39 arranged with its contact the end of each strip for indicating the desirable ends over said strips 33 and ?xed on the revolv and the undesirable direction of landing for the ing shaft 28 carrying the wind indicator 24 and time being, and further provided with illuminat the magnetic disk 25a which connects with the ing ?oodlights alongside the landing strips, a arm 35! in the switch box 26. radio reception system, for operation by wave Similarly the red lights 32 and the green lights 33 connect by wires 40 and 4! with correspond 50 signals from a landing aircraft, a relay system, relay contacts associated therewith closed for the ing contact strips 42 and 43 arranged in another duration of the landing operation when the relay circle in the wind indicator switch '26 so as to be system has been operated initially by a signal, a able to make contact with end of the radial arm wind indicator, comprising a windstock and an 44 preferably placed at right angles to the dia 55 metrical arm 39. electrically operated windstock freezer, holding The radially positioned runways in Figure '7 are wired and lighted in similar manner. A manual switch is indicated in the circuit at '50 which pro vides the ground attendants with necessary emer the windstock in its position for the duration of the landing operation, means for operating said freezer, a rotational double selector switch with gency control of the installation and a master arranged in a circle and two independent con tactor arms co-operating with the two sets of switch is likewise shown at 55 therein. While the above description explains the use of this invention primarily in connection with landing operations ‘it will be clear that the same arrangement may be used in connection with tak ing off operations from an air?eld. Moreover the usefulness of the system is not con?ned to illu mination or signal systems in air?elds. The dc" vice can be adapted to other uses in which a simple or multiple pre-selective operation has to be performed before the effective operation is initiated by means of remote control. ' two independently operated sets of contact strips contacts, the latter being adapted to be con nected with the windstock, permanent connec tions between each of the contact strips of one contact set of the selector with the illuminating ?oodlights of one landing strip and permanent connections between one contact strip of the sec-, ond set with one of the directive lights at each end, and a current supply circuit for the con ‘i nections made by the contactor arms including the contacts of the relay set closed for the du ration of the landing operation. When the pilot in the aircraft approaching the landing ?eld operates his transmitter for a short 2. In an automatic lighting system for air_ dromes and air?elds having a plurality of land time to emit signals of the predetermined fre ing strips provided with directive head lights at 2,407,949 7 the ‘end of each strip for indicating‘the' desir able and the undesirable direction of landing for the time being, and further providedwith illu minating ?oodlights alongside the landing strips, a radio reception system, for Operation by wave signals from a landing aircraft, a relay system, relay contacts associated therewith closed for the duration of the landing operation when the re lay system has been operated initially by a sig 8 shaft, a ?xed clutch member, a coil mounted in - operative relation to the ?rst named clutch mem ber, links between the said ?xed member and the axially movable member, for connecting the said axially movable member with the ?xed member, while permitting axial movement, the'energiza tion of the coil causing engagement of the cou pling member mounted on the shaft with the axially movable member connected with the ?xed nal, a wind indicator comprising a windstock 10 and an ‘electrically operated windstock freezer, v5. In an automatic lighting system for air holding the windstock in its position for the dromes and air?elds having a plurality'of land duration of the landing operation, means for op ing strips, one of which is to be selected for erating said freezer, a rotational double selector landing purposes in accordance with prevailing switch with two independently operated sets of 15 wind conditions, each of said strips being pro contact strips arranged in a circle and two in vided with illuminating lights alongside the strip dependent contactor arms co-operating with the and with directive lights at the end of the strip, two sets of contacts, the latter being adapted to be indicating the desirable and undesirable direc connected with the windstock, operative circuits tion of landing, operative circuits for these lights, for the illuminating floodlights of each contact a wind indicator and a selector switch, operated strip, circuits including a contact strip of one by the same, the latter selecting the circuits op selector contact set, two separate further circuits erating the illuminating lights and those oper for each landing strip, each circuit including one ating the directive lights, a means for energizing of the directive lights at each end, to indicate said selected circuits upon approach of an air simultaneously the desirable and undesirable 25 craft, comprising a radio reception apparatus, ' landing direction, a further circuit including the means arranged on the aircraft for transmitting means for operating the Windstock freezer ar a short signal to the reception apparatus, a relay ranged in parallel to the aforesaid circuits and a systern'connected with the latter, consisting in member. controlled current supply for all the circuits in cluding the relay vcontacts closed for the dura tion of the landing operation. 3.. In 'a'system of the type described as speci ?ed in claim 2, a windstock freezer operating -means, including a coil, a clutch consisting of members attached to the wind indicator and ?xed members, the latter being in operational relation to the coil and moved into engagement with the member connected with the wind indicator under theinfluence of the energization of the coil. 4. In a system of the type described as speci?ed in claim 2, a wind indicator comprising a rotat able shaft, and a wind vane, a magnetizable clutch member on said shaft, a further magne tizable clutch member, axially movable along said » 7 a relay energized by the signal and in a relay 30 remaining operated after energization for a pre determined period of time, an operative circuit for the 'latter controlled by the ?rst named re¢ lay, relay contacts associated with the relay re maining operated after energization, a circuit controlled by said relayv contacts, a windstock freezer, electrical means for operating the same, an operative circuit therefor, said circuit being directly connected'with the circuit operated by the above outlined relay contacts, and a power supply circuit for all the circuits above mentioned controlled by the circuit'associated with said re lay contacts. ’ ALFRED A. CORCANGES.