‘Sept.’ 24, 1946. ‘ -y P, sci-ION‘ 2,408,098 DUAL MOTOR CONTROL Filed ,Sept. 114, 1942 IINVENTOR. fieire Sqlwzz, A T TORNEYZST Patented Sept. 24, 1946 - ' 2,408,098 UNITED STATES PATENT OFFICE' DUAL »MOTOR CONTROL ‘ Pierre Schon, Indianapolis, Ind, assignor to Mar mon-Herrington Company, Inc, Indianapolis, Ind., a corporation of Indiana Application September 14, 1942, Serial No. 458,288 4 Claims. (Cl. 60'—97) 2 1 pendent power units which comprises, a shaft having means by which it may be oscillated, two arms journalled on said. shaft and each connect tion wheels. 7 ible to control means of a powerrunit, two clutch The object of my present invention is to pro~ elements independently splined on said shaft, vide an improved and simple mechanism for con and means including a single control element by trolling the operation of such engines, selective which said clutch elements, either or both, may ly or collectively. ' be selectively associated with said arms. The accompanying drawing illustrates my in 2. Means for selectively controlling two inde Vcntion as applied to two internal combustion engines such as are commonly used in motor ve 10 pendent power units which comprises, a master control element, two control elements, one for hicles. ' eachpower unit, a clutch element interposed be The drawing is a distorted elevation of my Certain types of motor vehicles are provided with two engines for supplying power to the trac tween the master control and one of said two improved mechanism, together with diagram unit control elements; a second clutch element matic additions indicating the engines, their car 15 interposed between the ‘master control element buretors, and ignition circuitsf ‘ and the other of said two control elements, and In. the drawing ill indicates a pedal shaft jour means including a single control element by nalled in suitable standards H, H, supported by the usual ?oor board, or otherwise, and provided ~ which said two clutch elements, either or both, may be independently shifted to and from with foot pedal l2 and biased toward low speed position in the usual manner. Journalled on 20 shaft it are two arms i3R, ISL, the free end of each of which is connected, directly or indirectly, with the control members of one of two inde- ’ clutching position. 3. The combination with two independent power sources each with a fuel-control element, a primary control element, a'connection between pendent engines R, and L, said control members, in'the illustrated embodiment, being the control said primary control element and one of said , arms MR and IllL oi the carburetors of the right ‘ clutching means, a connection between said pri mary control ‘element and the other of said fuel and left engines. Splined to shaft Ill, adjacent arms-13R, I311, are clutches I5R and I511 engaged, respectively, by levers IBR, I 51- and biased in one direction, preferably out of engagement with their respec-. tive arms I311, 13L, by springs‘HR, I'IL. Associ fuel-control elements and comprising separable control elements and comprising separable clutching means, two clutch manipulating means so one for each of said separable clutching means, and a single manual-controllable means by which either or both said clutch-manipulating means ated with levers “5R, IGL, respectively, are the ' »may be actuated to selectively couple or dissoci magnetic plungers I83, l8L of solenoids I91‘, ISL with energizing circuits 28B, 201- including a ate eitheror both said clutching means. switch 2i by means of which the clutches,leither or both, may be clutched to the associated arms BR, 131'. Switch 2| also controls the ignition ciré cuits, so that said circuits are only energized power sources each with a fuel-control element, when the appropriate clutch [ER or l51- is in ac Ll. The combination with two independent ' a primary control element, a connection between ‘said primary control element and one of said fuel control elements and comprising separable clutch 40 ing means, a connection between said primary con trol element and the other of said fuel-control tive position. By this arrangement, manipulation of shaft Ill elements and comprising separable clutching may serve to selectively operate, or leave undis means, twolclutch manipulating means one for ‘ turbed, either or both of the controlling means each of said vseparable clutching means, two so lenoids each controlling only one of said clutch manipulating means, energizing circuits for‘ said solenoids comprising separable contacts, and a single contact-controlling element by which directly controlling the supply of fuel or energy to the engine. . It will be readily understood that means, such ‘as pressure-responsive‘ or manually-responsive, either or both said solenoids may be selectively for shifting the clutches I53, I51‘ may be ‘substi tuted for the solenoids without departing from 50 energized or deenergized. my invention. _ , I claim as my invention: 1. Means for selectively controlling two inde~ PIERRE SCI-ION.