Show ar y A ae ac A 4 C G COOPER CO H P TWIN GAS ENGINE BELTED TYPE we recommend ingersoll rand belted compressors and vacuum pumps THE HE NATIONAL SUPPLY COMPANIES now control the sale 1 of C G cooper company engines for practically the entire world for use in the extraction of gasoline from natural gas I 1 an outstanding feature of their co construction instruction is virtually all of this twin engines parts are inter the incorporation of the inlet and exhaust valves changeable chan gable and can he be used on either the right or in one chamber so that in case of trouble replacement left hand engine thus very few reserve parts are of the entire head may be made in less than needed and errors in replacement shipments are an hours time obviated this insures maintenance of vacuum or pressure possible danger from a suddenly reduced load is whichever one the engine may be working automatically provided against if the engine under as against the costly loss of time that would speed exceeds that predetermined pre determined by as little as otherwise occur 10 per cent ignition instantly cuts off C G cooper co H P twin gas engines may bedad be had in either belted or direct connected units they have no superior for gasoline extraction or booster service THE NATIONAL SUPPLY COMPANIES toledo oledo I 1 0 pittsburgh pa new york N Y independence kan los angeles cal tulsa okla ft worth tex casper and laramie wyo |