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Patented Nov. 9, 1909. 5 SHEETS-SHEET

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Patented Nov. 9, 1909. 5 SHEETS-SHEET E, FEIGHTNER SUPERHEATER FOR LOCOMOTIVE BOILERS, APPLICATION FILED MAR, 27, 1909. 939,237. Patented Nov. 9, 1909. 5 SHEETS-SHEET , S N N N N N N N S. I, E, FEIGHTNER, SUPERHEATER FOR LOCOMOTIVE BOILERS, 939,237. APPLICATION FILED MAR. 27, 1909, Patented Nov. 9, 1909. 5 SPEEES-SHEET 2, rare - AEREw. 3. GRAHA c. PT-LRApHERS, WASH:NGT8, 9. L. E. FEIGHTNER, SUPERHEATER FOR LOCOMOTIVE BOILERS, APPLICATION FILED MAR, 27, 1909. Patented Nov, 9, 1909. 5 SHEETS-SBEET 3. ife-as OSDEDAPT R RTRea statees Nassetts SSSR'sIIT saaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa. I I I I I I If ES III 72%22a-2.FIUUUUUI o/eveeczz L. E. FEIGHTNER, SUPERHEATER FOR LOCOMOTIVE BOILERS, APPLICATION FILED MAR, 27, 1909, 939,237. Patented NOW, 9, 1909. 5 SHEETS-SHEET 4. S Ya N 7.A7 2-1se 2.Y 5 Ya. - S. 5 2 QS s 3 ()V Wa S. y s Sn , ; c. ( ra - M - ---1 ; S3v. - l S.A O A Lality N All 3 IN I, E, FEIGHTNER, SUPERHEATER FOR LOCOMOTIVE BOILERS, 939,237. APPLICATION FILED MAR, 27, 1909, Patented NOW, 9, 1909. 5 SBEES-SEET 5. o4-2-242. e éezzo G (72%ze, 42. 9 Cov//evacu- a22-22 a1 6-2-2, 42 UNITED STATES FATENT OFFICE. LEWIS E. FEIGHTNER, OF LIVIA, OHIO, ASSIGNOR TO LIVIA LOCOMOTIVE & MACHINE CoMPANY, OF LIMIA, OHIO, A CORPORATION OF OHIO. SUPERHEATER FOR LOCOMOTIVE-BOILERS. 9:39,23. Specification of Letters Patent. Patented Nov. 9, 1909. Application filed March 27, 1909, Serial No. 486,074, To all whom it may concern. of the smokebox, and these tubes are there Be it known that , LEWIS E. FEIGHTNER, fore located within such lower part to ab 55 a citizen of the United States, residing at 715 Sorb the heat. The central part of the South Broadway, Lima, county of Allen, smokebox is filled with a cylindrical deflec and State of Ohio, have invented certain tor having a conical end next the tube-sheet new and useful Improvements in Super and having its upper side connected with the heaters for Locomotive-Boilers, fully de Smoke-stack, so that the gases are compelled 60 scribed and represented in the following to circulate between the tubes of the super specification and the accompanying draw heater on their way to enter the forward end O ings, forming a part of the same. of the deflector before they can escape to the The present invention relates to a Super stack. The inlet to the headers is connected heater for use upon locomotive boilers for with the throttle-valve, and the chambers in 65 delivering very hot superheated steam to the the headers are so formed that the steam engine cylinders. It is well known that the traverses the entire course of the super 5 utility of a superheater in drying the steam heater-pipes three times back and forth be is largely neutralized if the steam is con fore it escapes to the cylinder-pipe. veyed for any considerable distance before it The invention further includes various de 70. is delivered to the cylinder steam-chest, as tails of construction, all of which will be cooling or condensation commonly occurs in understood by reference to the annexed 20 the conveying pipe. In a locomotive the drawing, in Which superheater is often located in a smokebox Figure 1 is a plan of a locomotive boiler in the path of the heated gases as they escape with the upper half of the shell removed to 75 from the smoke-flues, and where the cyl show the interior; Fig. 2 is an elevation with inders as in the Shay or Mallet type of loco the nearer side of the shell removed; Fig. 3 motive, are located near the firebox of the shows the interior of the firebox viewed from boiler, it is obvious that great difficulty is the front end; Fig. 4 is a side elevation of experienced in maintaining the dryness or the firebox with the nearer half of the shell 80 temperature of the Superheated steam in removed and the discharge connections from transmission from the Smokebox to the cyl the Superheater shown in section, where 30 inders, unless special means is provided to hatched, at the center of the discharge-pipe; prevent radiation of heat. Fig. 5 is a plan of the Smokebox with the top The means which I employ to prevent of the shell removed; Fig. 6 is a horizontal 85 radiation of heat in the present construction, Section of the steam-pipe and the gas-passage consists of a tube extended directly from the at the firebox end, where the cylinder steam 35 firebox to the Smokebox, forming a passage pipe emerges from the side of the boiler; through which the hot gases flow to the stack and Fig. 7 is an end view of the said con and through which the cylinder-pipe is ex nections with the crown-sheet and the shell 90 tended. It is led outward from this tube of the firebox in section. through the side thereof and through the In Figs. 1 and 2, A is the barrel of the 40 side of the boiler, near the connection to the boiler, B the shell of the firebox, C its crown cylinder steam-chests. The heat of the steam sheet, D the shell of the Smokebox, E the is not only maintained in its passage to the dry-pipe for delivering dry steam to the 95 cylinders, but is increased as it approaches dome F, G the steam supply-pipe to the top the cylinders, because it meets the fresh gases of which the throttle H is applied, and the 45 from the firebox. end of which is extended through the for In the present invention, the superheater ward tube-sheet I with the usual adjustable is formed of headers extended longitudi joint J. nally in the smokebox with successive groups The Superheater supply-pipe G extends 100 of tubes connected serially by the headers within the Smokebox from the joint J to the 50 and extended concentric with the shell of the inlet flange I of the superheater. The out Smokebox, across the bottom of the Smoke let-flange J of the superheater is connected box. Owing to the disposition of the smoke with the cylinder-pipe K, and the said pipe 105 flues, the heated gases enter the lower part K is extended from the smokebox to the 2 989,287 proximity of the firebox through a smoke or mit the Smoke-tube N, which thus receives gas-pipe L and a junction-box M, which is the gases from the upper part of the firebox, connected directly with the firebox by a tube and leads them into the Smoke-passage L. N opening through its tube-sheet. From To facilitate connection with the cylin the junction-box the cylinder-pipe is carried der-pipe K which is upon the same level 7 O outward through the barrel A of the boiler with the pipe N, (see Fig. 2) the outlet to an elbow O and steam-chest pipe O’. flange J' of the Superheater is set upon that In the Shay locomotive the engines are level, and the header Q containing the constructed with upright cylinders, T, as chambers 4 and 6 is thus located near the O shown in Fig. 1, the pipe O’ having center level of the Smokebox. 75 branches U leading directly into the chests The header Q connected with the supply V of the cylinders, as shown in Fig. 1. pipe G is extended in the firebox about The tube L is materially larger than the midway between its horizontal center line. cylinder-pipe K, leaving an annular gas and the stack S, and thus the bolts 2, which 15 passage L' between the two (see Fig. 6), secure the Supply-pipe G' to this header, are 80 and the draft to the smoke-stack draws the in a position accessible to a workman within heated gases from the hottest part of the the center of the curved tubes, and interfer firebox through the gas-pipe L thus en ence with the passage of the exhaust to the veloping the cylinder-pipe in its passage to stack is avoided. 20 the cylinders, and exposing the same to a The headers, complete with the tubes, can 85 temperature which increases as the steam be finished entirely apart from the Smokebox approaches the cylinders. and slid within the same, being then secured The headers Q and Q for the superheater in place and supported by hangers 20 at are formed of tube-plates, and cover-plates tached to the upper part of the shell D. The 25 having chambers therein and secured to the open space in the center of the superheater 90 tube-plates by bolts q. tubes permits a Workman then to gain access The ends of the superheater-tubes 1 are to the flange J for coupling the superheater expanded in the tube-plates, which are dis outlet with the cylinder steam-pipe K, and posed at opposite sides of the Smokebox, and to the flange I for coupling it with the sup 30 the tubes are curved downwardly between ply-pipe G. 95 the tube-plates, concentric with the shell D. A cylindrical deflector R, having a conical The cover-plates are formed with cham end R' next the tube-plate I, is supported in bers 3, 4, 5 and 6; the chamber 3 connecting the center of the tubes 1 by braces 11, 12 and with one group A of the tubes which leads 13, and a petticoat - pipe 10 is extended 35 the steam across the Smokebox into one end downward from the stack Within the upper of the chamber 4, the opposite end of which part of the deflector.
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