The Exhaust-Steam Injector, made by Schaeffer & Budenberg, is shown in Fig. 7. It is designed to utilize exhaust steam, It condenses, by means of the smallest possible quantity of cold water, the largest possible quantity of exhaust steam, and puts it into the boiler with out the aid of any other power than the exhaust steam itself. It can be attached to any class of non-condensing engine. The water is delivered to the boiler at a temperature of about 190° F.. against moderate pressure. Another form is designed to feed against a pressure up to 150 lbs. per sq. in. It is provided with an additional inlet by which live steam may be ad mitted with the exhaust steam. It is worked oy waste steam only up to 75 lbs. pressure, and a little live steam is introduced at the top of the injector in order to force against pressures higher than 75 lbs. It will be noticed from sectional cut that the boiler-steam does not come in contact with the water until after the exhaust steam has been condensed and has done its work. The exhaust steam alone gives an impetus to the water equal to 75 lbs.; it also heats it up to about 190° F. It takes feed-water up to 90° F. if working against a pressure of 105 lbs., and up to 86° F. at 120 lbs. of pressure.
The Peerless A711011laiie Injector, made by Schaeffer & Budenberg, of New York, is shown in Fig. 8. It is adapted for any service requiring the lifting of water. It is generally made to lift from 16 to 18 ft., but can be arranged to lift 22 ft., and more if desired. It works under all pressures ranging from 30 to 150 lbs., and equally well whether lifting or non-lifting.
The temperatures of feed-water taken by this injector, if non-lifting or at a low lift, can be as follows: Pressure. lbs... 35 to 45, 50 to 85, 90. 105, 120, 135, 150.
Temperature.. 144 to 136, 133 to 130, 129, 122, 118 to 113, 109 to 105, 104 to 100° F.
Referring to the letters in the sectional view, the parts are as follows: a, steam-nozzle; b, combining-nozzle with flap; c, delivery-tube; e, cap-screw for overflow; f, overflow-valve, g. tail-pipe; 71, tail-pipe nut ; j, screw-plug with stuffing-box ; follower-nut on plug j; packing-sleeve to j; 711, steam-spindle; 91, Crank to spindle at; o, screw-nut to spindle nt.; and p, handle to crank a.
McDaniel's .Siphon or Water-Lifter is shown in Fig. 9. The lettered parts arc as follows A, suction-pipe ; B, steam connection ; C, end of cone or steam-delivery : I), jam-nut ; and E, adjustable brass nozzle. It will lift water 20 ft. with ordinary steam-pressure.
EJECTORS OR .4.Vathan Mfg. Co.'s Ljector is shown in Fig. 10. It is used as a means of raising liquids from one floor to another or couveying them from vessel to vessel, and in breweries, chemical works, and other places where the liquid is to be kept in a heated condition. It can also be employed to great advantage, instead of pumps. in distil leries, sugar-refineries, paper-mills, tanneries, print, dye, and other works, where liquids in different degrees of density are required to he raised or conveyed from place to place. It will take the liquid at a temperature of 175°. The steam enters at the left hand, as shown in the cut, and the suetion.pipe is attached beneath.