US2786A - etjnson - Google Patents

Description

'ururnn srarns rafrnn'r ROBERT G; EUNSON, OF NEW YORK, N; Yr

MoDEor DISCHARGING WATER ANDAIRFROML THE coNDENsERs or STEAM-ENGINES.

T all/whom imag/"concern j Be it known that I`,RoB`ERT` Gr. EUNsoN, of the city of' New' York, in the county" and State of New Yorkghave invented'a newand useful' Hydrostat'ic Piunp for Pumping the Water and" Air from the Ondenser of Steam-Engines; I de hereby declare that the following is aM full, clear, andrexact description of"` the construction and operation ofJ the same, reference being'hadto the annexedi drawings, making, a part ofi this specification, in whichj Figurel' is a perspective view; Fig.` 2, a lngitudinal"elevation;` Fig. 3, a transverse elevation; Fig. 4,1. a longitudinal section; Figi 5, a transverse section; Figs. G and 7 details.

Upon a solid `foundationpandas near to the steam cylinder as practicable I' place the bedplate Figs. l,2,3.andt'fasteningthe same with `screwed bolts, in which plate is the cove BFig; 4t.' Uponl this plate I place the Abarrels CandD ofthepumpandjoint and" fasten them to it by the flanges with screw bolts, and'also to-eachjother by the anges with screw bolts as at-E Figs. 1', 2, Sand 4'; `making:the...communication F Fig. 4" ofthe barrel() With-the barrel D of the samediameter as@ `and'D, the upper end of the barrell Gis enlargedso as to `admitthe valve seat g, Fig: 4, and leave the opening aslarge as the barrel,- across the valve seat is guiding bar through which passes the guidin'grrod of the lifting. valve G, Fig, 4, wh ich valveopens into the receiver H, which is placed'upon andfboltedto` the barrel C by the flanges 2, FigJ. 11, inthe receiver is the waste` pipe I, Figskl, 2, 3', `placed suiciently high to allowthe valve g. to be always coveredA with water; on the receiver' and bolted'to it by the flanges is the condenser D 'which is off the common forlnandpon-L struction and furnished as is usual with inj ection pipe shut-by injection coclrjE, Figs. 1,2, 3,- steam pipe1P,foot pipe A shutby footlvalve B, Fig.- L (andalso a strainer of sheet iron perforated full of holes and placed 'justi below the` ,injection cock see 10, 4, andfalso side pipeA or small steam pipe from the boiler used foradmitting steam into the condenser previous to starting .the engine commonly called blowing out the condenser, Aside A pipe not represented in 2,786, datedS'ept'ember 23, 1842.F

M', so as to admit the steam from'below thepiston into the barrel D` (while the steam from above the piston passesdirectlyinte the condenser bythe steam pipe P `which is jointed andV bolted to the exhaust" pipe at the upper end` of the steam cylinder the cylinder' is in thiscase supposed te be perpendicular,) i and also with theco'ndenser' by the pipe N, fastened to N is the throttle valve seat" Q, and; connects it' with the condenser Aby the elbow pipe R, in the seat Qis the throttlevalv'e (D, of thelusualconstrud tion opened and shut bythe spindle t, Figs. ,tand 5, passing through ,tliestiifi'ngbox u, Fior. 5, and packed in usual manner. Through the toppiece (hand stin'iin'g boxes S, S, Fig. 5,passes` the shaft L, which consists oftwo parts, the one fitting over the other as 'asleeve and 1extending half way between thebearings a," a, Fig. V5, on these shafts lare fitted` and keyed respectively the hubs ande, Figs. 1, r5, of the levers forming the upper part Iof the expanding chain e, e and cl, d, and suspended in the barrelD, this chain consists of two grand parts see Fig. 5 fastened to each othelfat e, e by a pin orstud fast into one and turning into the other theV respective levers ofeach partA are fastened to each-other by a pin or stud as above at (Z, (Z, to the lower extremity of this chain is suspended the float G, Figs. 4, 5, which is ofm1 castiron and hollow, consisting of two parts, the top jointed with some nonconductingsubstance (so as to retain the heat received from the steam) andbolted on to the lower part, as this float rises in D, the joints (lfd, Fig. 4, recedefrom each other, and the joints e', e, approach, turning the levers b, `c, consequently the shafts L, reversely. j

To the top piece C, Fig. 2, isi-bolted at 'z, c, the cast iron frame to whichis fas? tened at y, Figs. 1, 2, 13,' upon a pin oijstud on| whichit moves the lever m, on` the ex-` trelnity of which is the slide 3, Fig. 7, with friction rollers, to the frame Z is iixed the keepers 4, 4, within these slides the rod 5, to which is fastened the spring F, Fig. G, alongside of which also within the keepers slides the slide H, Fig. 6, also l, 2.

The lever 'o is keyed on to the spindle t,

Fig. 5, of the throttle valve O in such a H, Figs. l, 2, 6, the rod 5, being worked by a cam from the engine, and having suiiicient range downward to carry the catch 7, Fig. 6, of the spring F, below the under edge of the lever ai, as in Fig. 2, and upward to carry the catch 6 of the spring F under the upper keeper 4, Fig. 2, which forces the catches 6 and 7 of the spring F backward to the face of the rod 5, when the lever m which had been engaged by 7, F, Fig. 6, and carried upward with it, is disengaged, and the catch 8 of slide H resting upon the top o-f lever has been carried up with it, and the slide 3, Fig. 7, having reached that part of the lever o which is an arc of a circle whose center is in y consequently concentric with the motion of lever the weight of J, upon the end of o in Figs. 1, 2, presses upon the roller of slide 3, lever w kand pin 'a and the valve remains shut until further acted upon. The levers g g bear` ing the counterpoises R,'I\, being keyed on the two parts of the shaft L respectively so that a line passing through R, and L, Fig. 2 should be parallel with a line drawn through L, and Z of lever b of chain in Fig.

' 4, consequently R, R, eounterbalance the float G, so as to keep one fourth of it above water, the float is made -FZ inch or more less in dia. than the barrel D so as to rise and fall with the water therein without friction, the arm` I of the lever g descends as the float descends and in its descent comes in contact with the catch I of the slide H carrying with it the lever m and w the lever o opening the throttle valve just as the float has reached its downward limit.

Operation: The lower part of the pump being filled with water so that the top of the float rises to the level of the flanges of D, steam is let into the condenser by the side pipe, and immediately occupies the upper stratum forcing the air down through the foot pipe and foot valve into the upper part of thebarrel C, and thence through the large lifting valve into the receiver, which being done, the steam is shut off and the injection cock E opened the water rushes into the condenser, is immediately broken up by the strainer and falls through the condenser like a shower bath, the steam is instantly condensed and vacuum produced. The water now descends by its own weight into the barrel C through the foot pipe and valve. The steam being admitted into the cylinder below the piston which rises, but a little before it reaches the top the rod 5 being drawn upward and the catch 7 F, Fig. 6, having engaged the lever x carries itupward and the slide 3, Fig. 7 as in 2d sliding upon lever o from J toward o, Fig. 2, continues to raise it until it reaches that part of /v which is concentric with Vits motion when the throttle valve is shut and kept shut and the catch 6 F, Fig. 6, having passed under keeper 4 F is pressed in and x disengaged. The exhaust from the cylinder below the piston passes into the barrel D by the pipe M and presses with its whole force upon the float and water in D which having nothing to prevent its escape through the valve G into the receiver but the atmospheric pressure its return into thel condenser through A being prevented by the foot valve B, the pressure of the steam beinggreater than the atmospheric pressure and weight of the water in C added, the water in D and consequently float descends and the water in C rises and lifting the valve G first forces out the air upon its surface and then the water that has accumulated during the operation. The water then flows away by the waste pipe J leaving enough however to cover the valve G and render it im A possible for any air to leak into the barrel C, the float having descended to its limit, the arm I of the lever g has come in contact with the catch I of slide H and pressed it downward carrying with it the lever m and consequently o has opened the throttle valve, and the whole exhaust both from the cylinder and barrel D has rushed into the condenser. The equilibrium being thus restored between the barrels C and D the water in D rises and in C sinks to a common level filling the upper part of C with air from the condenserby the foot pipe 'A the steam from above the piston passes directly into the condenser by the pipe P, and is instantly condensed and so the operation proceeds.

What I claim as my invention and desire to secure by Letters Patent, is-

The above mode of pumping the water and air from the condenser of steam engines, viz, by using the pressure of steam in place of the piston, in manner described z'. e. by a pump consist-ing of two barrels of unequal height, the water in the lower being pressed upon by the steam, either by the exhaustl from the cylinder, or by steam direct from the boilerin combination with c., in manner described or any other subscribed or any other substantially the same, stantially the same; and also the eutol", viz., either as applied to my pump or for the opening and shuttinof the throttle valve so common purposes of a cutoff.

as to prevent jarringzby means of the curved ROBERT Gr. EUNSON. 5 lever o being acted upon by the lever and Witnesses:

slide and the lever w acted upon by the rod, Y NATHL P. LABARTE,

spring catches, and slide in manner de JOSEPH PINE.

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