US1081408A - Means for supplying steam for industrial purposes from prime movers. - Google Patents

Description

MEANS FOR sUPPLYmG STEA L. SANDERS.

M FOR INDUSTRIAL PURPOSES FROM PRIME MOVERS. APPLICATION FILED APR. 12, mos.

Patented Dec. 16, 1913.

2 SHEETS-SHEET l.

Lewis SEWGQFS 5 w b l-g a L. SANDERS.

MEANS FOR SUPPLFIING STEAM FOR INDUSTRIAL PURPOSES FROM PRIME MOVERS. APPLICATION FILED APR.12,1909.

Patented Dec. 16, 1913'.

2 SHEET 8-SHEET 2.

sure steam up 0 the full SOUTH NYACK, NEW YORK, AS? CGMPANY, A CEIBPGRATION OF SUEPLYING STEAM FOR INDUSTRIAL IYJ'LRPOSES PRO W BK.

Specifieszion of Letters Patent. l ai1rgflgjiygili EH 31-15 1 Apgnieation filed April 12, 1909. Serial li'o. $39,517.

To (255 whom-z. may emwem:

e ii 3"? that I, irnwis Hminni-zs, u

he United Stores, residing at have invented c rtain new and i'iprovemeuis in Iii earls for Supply for industrial Purposes from vers. which the foliowii'ig is 21 neeiion with runny steam power s necessary to suppl relatively J di'fiereni n-nris oi the various pin es, ex- I v mills EO SUPplj steam to or HlSliiilCiiS to suppiy such pressure steam may very depending upon i'he put. Further, the deior s ikli swim is entirely independent prime mover for power. Urn

me; be a maximum while the other is at n minin'n: ifrom' ihis it follows that the ordinary iechumsm which merely governs the ndmi. sion of stemn to the prime mover is imideqimie to govern both for changes in load on the prime mover and for changes in the demand by the auxiliary devices for low"- pressure steam.

The object of my invention is he provide for a system or plant 01" the character described an in'iproved governing mechanism which takes into account the demand on the prime mover for power and that of the our? iliery devires for low-pressure si'eun'i Whereby the irimc mover will ei'ieciively handle its loud whatever he the amount up to its full load capacity, and the auxiliary devices will receive the desired amount of loiv-presload capacity of the system, and this while imiinhiining the economy of the prime mover pmciiesliy unimpaired,

in carrying out my invention a turbine of suiiabie consirueiion is provided ss'ch for example :1 Curtis undid-siege iburbine, or i :1 Parsons reaction turbine. iii, some inter-o mediate part or region in the working pas sage of the turbine where the nornuii pressure aft full load, for example, corresponds approximately with that desired a is is made to receive one or more conduits for supplyin steam for industrial lur gose eh. county of Rocklmid SiliiiiC oi sno ourposes in such a plan;

S, GT

when

whicn valve or valves of rho turbine. ii or ihey wili be referred to as stage valves since they operate in an inteimedi te pure or siege of the turbine. Tliey di in function and operation however from the ordinary siege valves now in use, because ihey urn responsive to ihe quaniity of steam Withdrawn for thezii'ixiliaries, \vhereasthe ordinziiy sings valve is either under the control of ihe speed governor or is responsive to 2! (.iii'i'm'enec in pressure between two stages. '11 both of these 'ifliiGI' (HSCS ihcy respond to the demand on the iurhine or power.

The idea of drawii'ig ofi u. large qiuinii'ty of steam from it given stage or region that may he small or may he. oquzii to the iouil amount enioringr sziid stage or region is :in ahnornmi condition vimvci'l from ihe shindpoint of ordinary turbine przu-iive and one which the ordinary governing lllCCilililiz-jlll totally inzule uuio 'io ('(Jil'illQiiSiliG or provide for.

inasmuch :is'ihc pressure in the conduit carryin steam away from SILi'fl region Will vary 1th the pressure: in said region and with ihe demand for steam by the aux- .ilinri-es l uiiiize ihis met and eonijrol ihe iive io such vnriniions. Fins r2 hinting I)1(3('i12i11151ii can he made m ii variety f ways. in order to make it exireineiy sensitive to is sensipressure changes. i divide said ll'lBCllfil'iiSl'H but not necessary,

controlled by the primary regulator and capable of exerting the desired amount of power and which controls theoperation of the motor or motors for moving the turbine valve or valves. 1

' The motor or motors for operating the valve or valves is or are preferably operated by fluid under pressure, such for example as steam, air, oil or water. It is preferable, to employ some kind of liquid under pressure, since the action of the motors can be more easily and certainly regulated than where, elastic fluid iscemployed. However the motors are operated, the load on the regulating mechanism should be made as small as possible to insure satisfactory operation. 4

It'is evident that where a large amount of steam is being supplied to the auxiliaries from some intermediate stage or stages, the admission valve or valves must admit a greater amount of steam for a given load on the turbine than would be the case it no steam were being withdrawn for the auxiliarics.

In addition to the stage valves, 6., those controlling the passage of fluid from the region of substantially constant pressure to a region of lower pressure, a valve is located in the conduit taking steam from said region which is also under the control of the regulating mechanism and so arranged that it participates in the control of steampassing through said conduit.

In the accmnpanying drawings, which are illustrative of my invention, Figure 1 is a partial sectional view of a Gurtis'turhine titted with my improved governing mechanism, the latter being shown more or less diagran'nnatically to enable the parts to be readily understood; Fig. 2is a horizontal sectional view of the turbine showing a number of stage valves and the motors for operating them; and Figs. 3 and 4: are modifications showing n y invention in connection with a Parsons type of turbine.

1 indicates a Curtis multistage turbine adapted for condensing operation and having the'usual casing divided by diaphragms l 2 into tour compartments or stages, each of wh ch is provided with a. bucket wheel 3.

The exhaust passes oil by the conduit 2. Mounted on the lower diaphragm of the stage to be controlled as to its pressure are stage valves 4- that ontrol the passage of slcam through the stage nozzles The, -var1ous nozzles and buckets both stationary and. rotary torin what is generally termed the working passage of the turbine. Each of tho valves t is actuated by afiuidpressure motor (3. Tapped into the stage inquestion, in this case the second, is a conduit 7 that supplies steam to the auxiliary devices requiring it. In this conduit a slide or gate valve 8 that no m" quite closes admits air.

-termines what atmospheric pressure.

but always permits a small amount of'ste'am to enter the conduit beyond it and maintain a pressure therein. The conduit is provided "with a check-valve 9 that-opens toward the auxiliaries, and also with an automatically acting valve 10 which opens when a vacuum exists in The primary portion of the regulating mechanism comprises a cylinder 11 containing a balanced piston valve 12"having two heads, an upper and. a lower. The opposite ends'of the valve are exposed to'highpressure fluid from the inlet pipe 13 by the passage 14 formed, for convenience, in the 'c, linder. The actuating fiuid maybe suppied to the pipe 13 by a pump or other means. The cylinder space between the heads is connected to the exhaust by the pipe 15. In this pipe is a spring-seated valve 16, and the tension on its spring de- By reason of this arrangement it will be evident that the effective liquid pressure working in the system is that-due to the difference between the inlet and exhaust pressures as determined by the valve 16. AS an additional regulating means, a hand-actuated throttle valve 17 is'located in the exhaust pipe. 7

The piston-valve is provided with a stem 18 whose lower end isv attached to a diapliragm 19, the underside of the latter being exposed-"to the pressure in the conduit 7 through the pipe 20,, and the upper side to On the stem are one, two or more weights 21 for loading the diaphragm an adjustable springs 22, one above and the other below the weights. The function of these springs is to determine the limits between which the steam pressure in the conduit. 7 may vary. Without these springs (which serve to restore the diaphragm and its attached piston valve to normal positions) or some equivalent arrangement, there would be a continual hunting or surging back and forth of the parts instead of returning to positions of equilibrium as in the present case.

The heads of the piston valve 12 control ports 23 and 24, and. have little or overlap so as to render the apparatus extremely sensitive. Port 23 is connected to the righthand end of the controlling cylinder of the the conduit and the exhaust pressure shall be.

' shown .as being in the same plane, but they can be distributed around the cylinder in v which case the latter and also the piston valve can be made shorter. Each motor is provided with two pipes that alternately convey high-pressure fluid and exhaust depending upon the direction of movement of the motor piston. The pipes 31 and 31 convey fluid to and from the motor 32 which actuates the valve 8 in the conduit 7. The next pair of pipes 33 and 33 perform the same oilice for the stage-valve-operating motor 6. The succeeding pipes are similarly arranged and. connected, although in the interest of clearness the motors have not been shown connected thereto. The last two pipes in the series, 34: and 3a, are connected to the motor which actuates a balanced a'alve 38ithat controls the passage of live steam from a main 39 to tahle source through the T when the supply steam from the turbine is of low insufiicil nt. r

The "corresponding faces of the piston valve .29 of the secondary regulator are separated by the same distance that separates the ports of the pipes communicating with a given motor; for example, the ports connected to pipes 31 and 31 are separated by the same distance as corresponding faces of the valve. The reason for this is that one pipe must receive high-pressure fluid while the other is open to the exhaust.

Referring to Fig. 1, L0 indicates a nozzle valve that is located in a suitable steam chest l1. As many of these valves may be employed as desired. The valve stem is attached to a lever which cooperates with the camel to open the valve, a compression spring 43 being utilized to assist in closing it. The levers for the valves are operated by a shaft having the cams ll thereon, and the shaft is moved by a hydraulic motor &5 controlled by a pilot valve and its actuating speed governor 4-6, the latter being driven by the turbine either directly or indirectly.

The action of the apparatus is as follows: Assuming the turbine to be operating under heavy load with its stage valves open and all of the auxiliaries out of service; just as soon-as one or moreauxiliaries are put into service by opening their controlling valves, there will be a drop in pressure in the conduit 7 and a corresponding drop in pressure on the under side of the diaphragm 19. The weight 21 will then depress the piston valve 12 of the primary regulator and high-pres sure fluid will enter the, secondary regulator by the pipe 26 and move the piston valve 29 to the left until the right-hand face of the ght-hand head uncovers the port leading into and through the secondary regulator, i

and by pipe 31? to the motor 32 Whose piston will open the valve 8 the conduit 7. The exhaust from the motor Will tlovv'through pipe 31 into the. secondary regulator and escape by the pipe 30 because its port is uncovered. The freedom or the exhaust can be controlled by the valve 47 in the pipe 30 and the rapidity of movement of the motor piston and its valve will be governed accordingly. If the opening of the valve increases the pressure. sufficiently in the conduit to supply theauxiliaries, the diapl'iragm 19 will be moved up to its normal position together with the piston valve 12 of the primary regulator. It not, fluid under pressure will continue-to enter the secondary regulator cylinder and force ts piston valve 29 still farther to the left uncovering one pair of pipes alters the other and causing one motor 6. after the other to close stage valve 4: until a state of equilibr' m is re established, the supply valve or valves in the meantime admitting more steam to the turbine. If this does not satisfy the require ments of the auxiliaries, the motor 35 Will. open the valve 38 and admit live steam to the conduit 7. During this operation as one stage valve after the other closes and the auxiliaries take more and more steam, "he speed governor is opening the admission valve or valves of the turbine and admitting more and more steam. It, is evident that while this action is taking place the steam passing through the turbine and into the conduit will be performing useful work. as its pressure drops, and the remaining steam flowing through the turbine to the-condenser exhaust will also be performing useful Work. Also that the quantity of steam entering the turbine will be in excess of that required to drive it it all the steam passed into the condenser or other exhaust.

Assuming that the demands of the auxiliaries decrease, the pressure under the diaphragm 19 of the primary regulator will increase and cause the same to ri .e, and high pressure fluid will enter the cylinder of the secondary regulator at the lettdiand end and start the piston valve 29 into motion toward the right. Since it is necessary for a reversal in function of the several pipes 31, 31 33, 33, etc. to take place before the motors can open the stage valves, 2'. e., that those pipes should convey high pressure fluid which conveyed exhaust before and vice versa, the piston valve must move a distanceto the right equal to the axial length of one of its heads. This introduces a timelag in the operation of the valves which in some cases is an advantage in that it prevents too sudden operation of the parts. This lag may be eliminated, if desired, 'by connecting each pipe to a pair of ports located a distance apart equal to the length of the piston head, instead of connecting them to single ports. llhis arrangement is 'used with the primary piston. Assuming the piston valve 29 to have uncovered the port leading to pipe 34, the motor 35 will close the valve 38 and the exhaust of the motor will pass by the pipe 34a to the cylinder space between the piston heads and escape by the exhaust conduit 30 therefrom. This operation is repeated for the successive stage valves providing the pressure conditions have not been reestablished. If they have, the primary regulator assumes its normal position and remains in that position until. a change takes place (when it acts as before), and the piston 29 of the secondary regulator also stops. F or moderate changes the piston valve of the primary regulator will only be open for short intervals and will close between the operation of the different motors both under conditions of increasing and decreasing demands for steam by the auxiliaries. -This action is assisted by the springs 22 which form an anti-hunting device to prevent overtravel of the parts.

In order to guard crease in pressure in steam to the conduit 7 should all or against an abnormal inthe stage supplying a large number of the stage valves be closed, an

automatic valve 60 is provided that shunts or by-passes steam from the second stage to the third. In this case the steam thusbypassed will do no useful work; but the eitect of openingthe valve will be to quickly lower the pressure in the second stage. The pressure at which this valve will open can be regulated by adjusting the tension of its closing spring 61.

The vacuum-breaking valve 10 in the conduit 7 may be of any well-known construction. It should open and admit air when there is a vacuum created in the conduit and close when there is a pressure therein.

Fig/3 shows a Parsons type'of turbine fitted with my improved governing -mechanism. In order to provide thei necessary space for the stage valves 4, I mayremove one or two rows'of rotating vanes or buckets and one or two rows of stationary'vanes or buckets, or I may locate the valves in that part of the casing where the diameters of the rotor and easing increase. are of sufficient length to cover a numberof stationary vanes or buckets 51 so that the ci'l'ective steam outlet from the stage or region 52 of constant or approximately constant pressure can be changed. Each valve is actuated by a hydraulic motor 6 which The valves 4 may be of the type shown in Fig. 1. Fluid.- is conveyedto and from the motor pr motors by the pipes 33., 2,3, etc.,arranged*and con- I passages trolled in the manner previously stated.

vSteam is withdrawn for the auxiliary devices by the conduit 7.

In Fig. 4 I have shown a further modification as applied to a Parsons type of machine wherein the rotor and easing are divided into two parts or sections 53 and 54 with an intermediate pressure region 52 between which may be regarded as part of the last stage of the high-pressure section. Steam enters the conduit 55 from t pressure section and enters the lowressure section through passages 56 under the control of one or more stage valves t that are actuated by motors 6. As the general operation of these modifications is the same as described in connection with Fig. 1, further description is unnecessary.

In accordance with the provisions of the patent statutes, 1 have described the principle of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof, but

I desire to have it understood that the apparatus shown is only illustrative and that the invention can be carried out by other means.

What I claim as new and desire to secure by-Letters Patent of the United States, is-.

1. In combination, a prime mover having a high pressure admission and a low pressure exhaust, a conduitseparate from said exhaust and receiving steam from the prime mover at an intermediate pressure for industrial purposes, passages in the turbine leading from the region of intermediate pressure, valve means for controlling the and for maintaining the supply of steam to the conduit at a substantially constant pressure, and a regulating mechanism for automatically controlling .the action of the valve means.

2. In combination, a high pressure admission and a low sure exhaust, a conduit taking steam rom a region in the prime mover intermediate the admission and exhaust, a working passage within the turbine, means sensitive to a condition of conduit, and a valve for regulating the flow of steam through the passage from said re-' gion to the low pressure portion of the turbine and for controlling the pressure in said region.

3. In combination, a prime mover, a conduit receiving fluid from the prime mover at a point intermediate its supply and exhaust and after it has performed work in a prime mover having said prime mover, means acting on the fluid passages within the turbmefor controlling of fluid therethrough and also a regulator sensitive uid flowing through effective the steam withdrawn by the 5 has fluid discherfg- ,uduit receivafter 7 :ime mover, ee of fluid t j from the stage that supplies the condui and regulator sensitive to the passage of fluid through the conduit for modifying the position of said. means.

in combination, a turbine wherein a drop in. pressure takes place between the supply and the exhaust, a conduit receiving steam from the turbine at 11 point intermediate the supply and exhaust, valve means carried ov the turbine for controlling the fiovv of steam through a passage therein and else through. the conduit, and regulater sensitive: to condition of the steam flowing througl'i the conduit for regulating the action the valve means.

6. In combination, a turbine wherein a drop pr ure takes place between the supply and rue exhaust, u conduit receiving through steam from the turbine ut u 1;" nt intermediate the supply and exhaust, u valve means curried by the turbine for controlling the flow of steam through the pass es leading the low pressure portion of? the turbine and also through the conouit, means for tuating' said vuiv'e'ineans, and. regulating device sensitive to a condition or the steam passing through the conduitfor cont-rolling the action of said means,

i. in combination, a turbine wherein a drop in pressure takes place hetvveen the supply and the exhaust, 2i conduit receiving steam from t e turbine at a intermediate the supply and exhaust, ir lependent vulves controlling" the passe, of steam through rue turbine and ulso through the conduit, motors for actuatin and a regulutii'ig' mechanism condition of the steam withoruwn by the conduit for controlling the action of said motors In combination, a prime mover having a Working passage through which the steam flows, a governing means for controlling" the admission of fluid thereto in accordance With the demand for motive power and also to the demand for steam withdrawn, 3, conduit that conveys steam e given region in the 'turbine end at a pressure intermediate that of its supply and exhaust, and a means responsive to a condition of the steam flowing through the conduit for varying the eliective area of the u'orlring'pus sage in the prime mover on the low pressure side of said region.

9. A turbine having an. admission, un'ezo haust, and a Working 1 assage wherein. there is a region of intermediate pressure, in combination with a governing mechanism responsive to changes in speed of the turbine the turbine for increasing or decree g the enective areaofthe working passage of the turbine on the low pressure side of the said region.

10. A turbine having an admission and an exhaust, a Working" passage wherein there is a region of intermediate pressure, and a governing mechanism responsive to load changes on the turbine, in combination with a conduit receiving steam from said region, and e governing mechanism comprising a regulator responsive to pressure changes in the conduit, one or more stage. valves, and means for actuating the valves,

f'rl, A turbine having on admissionand on exhzuiist, end it working passage wherein there is a. regionof i'ntermediae pressure, in combination with u condi' receiving steam from said region, evolve in said conduit, :1. fluid motor for operating; it, controlling valve therei regulator sensitive to pressure cl uctuu ring the said controlling vs l2. turbine having an admission end an exhaust, and a, Working" passage wherein there is a region oi? intcrinedi. te pressure, in combination with u conduit receiving steam from said region, 11 valve in said conduit, means for open 1; it, valve m ans controlling the effec i area of the Working beyond said region, and regulator responsive to a condition of the seam in the conduit for controlling the valve in said conduit and the valve means.

13. A turbine having" an admission and an exhaust, and a Working passage wherein there is u region of intermediate pressure, in combination with aconduit receiving steam from said region, means varying the edective area of the Working passage on the low pressure side of said region, a lllitin delivering steam to the conduit from s source of higher pressure, a valve in main, and regulating mechanism for said means and the valve which is sensitive to pressure changes.

' l4. turbine having an admission and an exhaust, and a Working passage wherein there is a region of intermediate pressmrel in combination with c conduit receiving steam from said region, valves forvarying the effective area of the working" passage on the low pressure side of said region, a valve in said conduit, actuators for the valves, and a governing l'nechanism responsive to the pressure of the steam in the conduit that is common to the actuators.

15. In combination, a turbine having a working passage wherein a drop in pres sure takes place between the admission and the exhaust, a conduit taking low pressure steam from a region of the workmg passage intermediate the admission and the exhaust, a speed responsive governor which regulates the initial admission of steam to the (,urbine and thereby regulates the supply received by said. region, valves for regulating the pressure in said region by controlling the flow of the steam therefrom toward the exhaust, a pressure responsive mechanism connected to the conduit and said region which opens the valves when the pressure therein tends to riseand closes them when the pressure tends to fall.

16. A turbine having an admission and an exhaust, and a working passage wherein there is a region of intermediate pressure that is to be maintained substantially constant, in combination with a'conduit receiving steam from said region and supplying it to auxiliaries, valves for varying the effective area of the working passage on the lowpressure side of said region, a valve in the conduit, actuators for the valves, a source of power for the actuators, and a regulator sensitive to a condition of the steam for controlling the application of power from said source tothe actuators.

1'7. A turbine having an admission and an exhaust, and a working passage wherein there is a region of intermediate pressure, in combination with a conduit receiving steam from said region, valves for varying the effective area of the working passage on the low pressure side of said region, a valve in said conduit, motors for actuating the valves, a eontrollim cylinder, pipes connected to the cylin er and the motors, a valve in the cylinder for admitting fluid under pressure to the pipes and exhausting it therefrom, and a regulator sensitive to the pressure of the fluid passing through the conduit for controlling the movements of the valve in said cylinder.

18. Aturbine having an admission and an exhaust, and a working passage wherein there is a region of intermediate pressure, in combination with ai /conduit taking steam from"'s'aid"region,valve means for automatically maintaining a substantially constant pressure in said region, and-a valve which opens under abnormal pressure in said region and discharges steam from it to a point of lower pressure.

19. A turbine having an admission and an exhaust, and a working passage wherein there is a region of intermediate pressure, in combination with a conduit taking steam from said region, valve means for, maintaining a substantally constant pressure in said region,

and a valve in the conduit which 0 admit air when a vacuum is created t erein.

pressure tially constant pressure 2.0. A turbinehaving an admission'and that is to be maintained substantially con stant, in combination with a conduit receiving steam from said region and supplying it to auxiliaries, valve means responsive to a condition of the steam flowing from said region into the conduit for regulating the thereof, and a device for prevent ingthe overtravel of said valve means.

21. A turbine having an admission and an exhaust, and there is a region of intermediate pressure that is to be maintained substantially constant, in combination with a conduit receiving steam from said region and supplying it to auxiliaries, valve means responsive to a condition of the steam supplied from said region to the conduit for regulating the a working, passage wherein .85 pressure therein, and a valve in the conduit which closes when the turbine creates a suction on the auxiliaries.

22. A turbine having an admission and an exhaust, and a working passage between the admission and the exhaust wherein there is a region of intermediate pressure, incombination with a governing mechanism for regulating the admission of live steam to theturbine, a conduit receiving low pressure steam from said region and delivering it to auxiliaries, and valve means carried for varying the cross-section by the turbine area of theworking passage and responsive to a condition of said low pressuresteam for automatically maintaining a substanin said region.

23. In combination, a turbine that is divided into stages, a conduit for-conveying steam from the turbine from between certain of it's stages, a valve within the turbine for controlling the passage of fluid from one stage to another, a motor for actuating the valve, and means sensitive to the pressure of the steam in the-conduit for controlling the action'of the motor.

24:. The combination with a multi-stage turbine having nozzles and bucket wheels, of a pipe taking steam from a low pressure stage therein, a regulator normally exposed to the pressure insaid stage, and valves controlled by the regulator for controlling the passage of steam from said stage through the nozzles leadingtothe adjacent stage of lower pressure.

'25. In combinatiorn-a turbine having an admission, an exhaust and a working passage between the admission'and the exhaust wherein there is a region of intermediate pressure, a conduit for conveying low pres- ,sure steam from said region to auxiliaries,

valve means within the turbine that controls the flow from said region to the portion of the working passage beyond the re on, and

means responsive to a condition 0 the low pressure steam for controlling the valve means to maintain a substantially constant pressure in said region.

26. In combination, a turbine having an admission, an exhaust'and a Working pas sage between the admission and the exhaust wherein there is a region of intermediate the low pressure steam at a substantially constant pressure.

27. In a multistage turbine, a dividing partition between two adjacent stages, a port located on the admission side of said partition for delivering fluid from said turbine, passage means conveying fluid from one side of the partition to the other, and valve means for said passage means, the operation of which is dependent upon the pressure on the admission side of said. partition for controlling the delivery of lluid from one side of the partition to the other.

in a turbine, means for dividing the interior passages of the turbine into two parts, a port located in the turbine casing on the admission side of said means for delivering fluid from said turbine to a source'of consumption outside the turbine, a port in the dividing means whereby steam may pass from one part of the turbine to the other, and valve meansfor maintaining a' constant pressure in that part of the turbine from which the first named portvleads, said valve means being controlled by the pressure to -determine the effective port area of the second mentioned port.

29. In a turbine, means for dividing the interior passages of the turbine into two parts, a port located in the turbine casing on the admission side of said means for delivering fluid from said turbine, and valve means for maintaining a constant pressure in one of the parts of said turbine and for controlling the delivery of fluid fromone part to the (ither.

In 'WllZHOSS whereof, I have ,hereunto set my hand this 10th dayot April, 1909.

LEKVIS SANDERS.

W itnesses:

l'hnaaanx B. I-lULL, H ELEN On roux).

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