US937228A

US937228A - Pump-governor.

Info

Publication number: US937228A
Application number: US28004305A
Authority: US
Inventors: Rudolph Conrader
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-09-25
Filing date: 1905-09-25
Publication date: 1909-10-19
Anticipated expiration: 1926-10-19

Description

R.00NRADBR.

PUMP GOVERNOR.- APPLIOATION FILED SEPT. 25, 1905. 937,228. Patented Oct. 19,1909.

. 3 SHEETS-SHEET l.-

R. UONRADER. PUMP GOVERNOR. APPLICATION FILED snrcr. 25, 1905. 937,228. Patented 0c't.19,1909.

3 SHEETB-SHEET 2.

I avwewitoz Qmi/lmmo @Miozneu R. GONRADER.

PUMP GOVERNOR.

APPLICATION VITILED SEPT. 25, 1905.

Patented 0ct.19,19 09.

3 SHEETBSHEET 3.

RUDOLPH coNRADER; or Earn-PENNSYLVANIA.

PATENT c t c.

iPHMP-GOVERNOR.

To aZZ whom it may concern 'I l v Be it known thatI, RUDoL1 H Connnnnn, a citizen of the United,States,'residingat Erie, in the countyof Erie and Stateof Pennsylvania, have invented new and-useful Improvements in Pump Governors, :of

- which the following is .a'specification.

fully described and 'pointed out in the claims.

This invention relates to pump governors and'consists in certain improvements inthe construction thereof as will be hereinafter Pump governors have been heretofore made which would vary the speed of the.

pump as the requirements of the pumpvary.

Such a governor is shown in the patent issued to me November 22, 1904, #775,391.-

" Relief devices have also been provided for y wheel; The stored energy of such a device compressors which would vary the quantity of fluid pumped with each stroke of the compressor. Such a device issliown in the patent issued to 'me November 22, 1904 #775,393; I

I have been informed that compressors.

have been provided with governors which would maintain the maximum, speed of the compressor until the maximum receiver press sure was reached when the governor would bring the engine of the compressor to its minimum speed and would at the same. time unload the compressor so as to stop the de-i livery of any fluid from the compressor. If

a compressor is ru11 at a slower speed the quantity pumped may of course be variedeventhough the quantity of fluid deliveredwith each stroke remainsconstant .XVhere the expansive use of steam orfluid is utilized in the engine there must be some means of storing sufficient energy to carry the compressor tothe end of the stroke and this is usually accomplished by means of a fly running at a high speed is much greater than that runningata lower speed and con-- sequently if it is suliiciently large to provide the necessary momentum for the slower speeds it WlllsbG much larger than is required or necessaryfor the higher speed. Vith my present device I-have combined a speed governor or speed. controlling mechanism .-.-;witha regulator or relief device for the-compressor, the'combined action of which 1s to. reduce the load on the'com- 'pressor as the speed of the engineis reduced,

so that a fly wheel or other device for carrying the compressor through the stroke in Specification of Letters Patent. Application flied. September 25 1995. Serial No. 2so,'o4s;"

ratent uoct. 19, 1909.

- plish thesame purpose in the slower speeds so that a very much smaller fly-wheel may "be used.'-. Such a governor also gives a greater rangelof variations in'supply than deany of the combinations heretofore re ferred to. Not only does it varythe number of strokes but it also varies the amount deliveredwith] each" stroke, so that the total quantity. that the minimum speed .withwa minimum delivery at each stroke is the widest possible variation from that of the maximum speed with a maximum delivery at each stroke-that it is possible to obtain, I have also provided a governor for a compressorwhich will-vary the speed of the Y i. the high speeds will be "sufficient to accom-g compressor by varying the point of cut ofl:', i

the governor-being controlled bythe pressure'of the umped fluid. also provide various detais of construction as will'appear morefully frgmh the description and claims.

The invention is illustrated in the accompanying drawings as 'follows: i

Figure 1 is a side elevation of a compressor with my'governor mechanism. thereon; Fig. 2,. a plan viewof the same. Fig. 3, a section on the line 3-3 in Fig. 4, being an enlarged view of the intensifying mechanism and relief. device or regulator. -Fig. 4, a side elevation of e same parts. Fig. .5-,.a section on the line 55 in Fig. 6, the same being a detailed view of the 'motor actuating the speed controlling mechanism.

l ig. 6,,a plan view of thesame,

A'ma-rks the compressor or pump cylinder; B, the engine cylinder; a, the inlet to the compressor; a,the outlet to the same; a the pipe leading to the receiver which for the purpose of this application may be termed the, receiver, it being a part into which the pumped fluid flows.

ordinary valve mechanism, the inlet valves (not shown) being arranged on the shafts b.-

The arms b are fixed on these shafts. On

the ends of these armsjare arranged the The engine cylinder is provided with 'an i The . ranged on the links 0 and are pivotally cone'rnor in the usual-:fjmanner, the release.

catches having the 'armsyb extendingfrom them which ride the hubs Z)? of the governor rock arms I). These hubs are provided with the projections 12 which contact with the arm b and eflect -.the release.

By varying the ppsition of these, projections 71 the moment of release is varied. Reach rods b extend fromthe arms 6 and are connected with the arms a, the arms o'bein'g fixed on the shaft 0 5 An arm '0 also extends from.

the shaft 0 and is pivotally' connectedto the upright rod 0 The rod c -is journaledin the projection '0 on the upright of the. governor.

the weight 0? of the governor. A spindle 0 extends up through the center of. the governor post 0' and 1s driven-from a drive pulley 0 Links 0 extend from the upper end of this spindle and are pivotally comiected with the links 0 The weights 0? are arnected to the collar 6 the collar 0 being arranged to move axially with the weight 0* and collar-0 This Corliss valve gear and the governor so far as described is a common type of Corliss valve gear and governor. The exhaust valves and other parts of it are operated in the ordinary well known manner.

The pipe D extends-from the receiver to the cylinder E of a controlling motor entering; said cylinder through a'connection'e. The piston E is arranged in the cylinder E and controls the needle valve 6. The needle valve controls a passage 6 which extends I from the cylinder E to an intensifying chama lever E.

b'er F. A stem 6 extends from the piston outwardly through the cylinder and engages Alspring E is secured to "a part ofthe' cylinder and "to the eye bolt a The eye bolt extends through the lever and the ten- .sion spring may be adjusted by means of the nuts 6. An arm E also extends from the lever e to which is attached'the weight E The weight may be adjusted on the arm and of course exerts a more constant pressure than does the spring. 'lhrough the combined action of the weight and spring to the-opening 0 While the minute opening v f remains constant effects a variation of pressure in the intensifying chamber F start- 5 ing withatmospheric pressure at the initial to the full receiver pressure.

The rod 0 is connected to. a collar 0- and this collar is'connected with Thelever E isgpiv'oted at 6 opening of the valve e to approximating the full receiver pressure with a full opening of the valve 6-. Inasmuch as the piston E may beloaded by means of the weight E and the spring E so as to effect a complete very small variation of receiver pressure, say two orthreepounds, it will be seen that this variation in the receiver pressure is intensified in the intensifying chamber to a variation extending from atmospheric pressure assuming. that the receiver pressure may be one hundred pounds, a variation oftwo or three pounds in the receiver will efi'ect a variation of say eighty-five pounds in the intensifying chamber.

The intensifying chamber is connected with a cylinder G" forming part of the motor controlling the charge regulating valve which in the construction shown not only operates to regulate the charge of the compressor but also in its ultimate position a complete relief device'or unloading device. A pipe 7:. extends from the cylinder G to the cylinder H of the governor motor H,.being connected with I said cylinder through the connection it. 'A piston k is arranged in this cylinder. A link If extends from the piston k and is pivotally connected with the arm 72/ fixed on the shaft 0 The link h is '70 opening or closure of the valve E with a In other words, k

preferably pivotally connected with the piston [L by means of the. pivot it As the arm if is actedupon through the influence of the motor acting throu h the shaft 0*, arm 0, link 0 and incidental weights 0 As soon as the receiver pressure exceeds the desired minimum the valve 0 is opened and air is delivered under the piston 7L \Vhatever pressure it exerts upon this pistonis taken from the weight forming the centripetal element of the governor, so-that the governor weights (2 with the same speed will naturally assume a position farther out and up'or in other words a position which would effect an earlier cut off of the valve. This will with the same load decrease the speed of the pump. Of course this decreased speed of the pump will decrease the force of the centrifugal element but it will in its final position effect an earlier cut off than that prior to the time air pressure is delivered under the piston [1/ As the. pressure increases under the piston If, it relieves more and more the weight forming the centripetal element of the governor thus effecting an earlier cut off and. a

.slower speed. .This variation is made very sensitive relatively to'thefluid pressure in the receiver through the intensifying mechanism hereinbefore described.

With the piston of the motor directly connected with one ofthe elements of the gov- I parts, it deliversthe force of the motor to the weight 0 and also theweight incident to the governor ernor as in this device and With the minute openings incident to the intensifying mech;

. anism, the piston not only jaj'ctsi as ainotor for influencing the governorthrough-the action of the pumpedflufdbiitit'also 'acts as a dash .pot for the governor to preven'tany tendencytoward racing. 1

Governors of this class areprovided with some go the. govern is ordinarily lledfa minimum, stop. such a'stop' were provided with; this", con-" struction, the governor, would lose this jdashf pot effect and unless peculiarly-made might interfere with the action of; the governor. ,I

prefer therefore to provide adevic'e f0r.p0S:l-; tively limiting the pressure that may be de'- livered to the piston If; This I accomplish by means of theisafety valve secured to the cylinder H.- The safety valve'comprisesja cylinder h in which is arranged a piston-k A waste passage It extends from thebottom: of the cylinder and is controlled by the valve it carried by. the piston h. Thepas'sage h"'-" extends from the'cylind'er H. to the cylinder h A spring. h is tensioned againstpthe piston h and normally'holdsthe valve h in .a closed position. A screw t isthreaded" into thefend of the cylinder againstthe spring it; By means of this screw the spring may be tensioned'to-adjust the point at which the. safety valve will act. When therefore any pressure is delivered under the piston 7L above-that desired; this pressure acting iinderthe piston h wi1l move the piston h opening the valve 7 and relieving. this pressure. This in fact will provide a minimum stop for the governor.

It is desirable to control the charge of the compressor through the intake and as before.

stated if thefintake is. entirely out oifitwill practically unload the compressor. I accomplish this by arranging a valve G for ccntrolling the intake and governing the action of this valve. The-valve G is arranged 1n the chamber G. v It controls the opening'g through the valve. The valve itself is provided with openings 9 one'of which acts on each opening 9?, so-that the valvewill be practically balanced in each of 1ts-pos1t1ons min the manner of the ordinary throttling valve. A piston G is'arrangedintheeyL inder G. It has. the stem'g extending, from it The cylinder G is mounted onaframe Gr andthe-frame G is mounted on the body G of the. valve valveistem g' eX- tends from the stem g -to the valve '(Sr? forming a posit-iye connection between them.'

A yoke g is secured to.the end of the stem 9. springs g iar-e secured on this yoke, the opposite ends' ofx thesprings'being secured to a yoke g Y'The yoke g is carried by screw threaded sleeves "g This screw "threaded sleeve is mounted on a pin g extending sitive stop which 'will j'prevent" rom effecting such a point of"- out, off as w d-stop'theipump: This stop from thetop of the cylinder G It'ispro- Wh'en; thesesprings-are properly adjusted,

at lock'nut 9 The-pins 9 preferably extend through the cylinder; forminga 'stop' 9 for preventing the piston G from closing passage to thegovernor motor; Through thisc'on'struction whenv air is turned into the mechanism 1501'} the engine --controls it by 'v'arying the-point of out 01f, but i broaderjfeatures of my invention, I d ot wish tolbe so. limited. f'It-willbe' noted also that the regulating device for regulating the charges in the compressor operateson the throttling principle, but in the broader 'fea-' tures of. myinve'ntion I do-not wish tofbe limited to this construction. 3

parts are preferably -so adjusted that the valveF Gi isfmoyed toward the closing point as thegovernor is influenced to efi'ectan ump-is" decreased the charges are likewise decreased. As set forth in the early part of this description through thisarrangement a,

. small fly wheelmay be usedfor as the speed pel the charge inthe-pump is also decreased; Preferably therefore the variation' in' the chargeand speed are made to vary'together. The parts may however be adjusted'so that one will succeed the other to some extent, and while this will not permit of the use of 'still itwill increase the variationsi-in the I total discharge of the pump from the maxi 'mu'm'to 'a point where it is completely un setso that the valve G is gradually'closed -until reachinga position where it-willdeliver a minimum charge to the compressor before the governor is eifectively actuated, the compressor/will deliver decreasing charges but at a uniform speed untilit reaches 'a minimuin charge, and then will pressor mayv operate with a uniform charge but the adjustment of the springs g Will e such that the governor will be brought to its fvided with a handle'g by means of which it may-be turnedto tension the spring 9 and I the adjustment may be'secured bymeans ofearlier cut "ofiso that as the. speed of the.

.loaded as for example, if the mechanism is continue decreasing the speed until it reaches aminimum speed, or vlce versa, the comthe .npp.er end of the cylinder. andthus the" I I 'c ylinder G by reason of an excess of pres- 7 It will be" noted that the controlling by In the generaloperation of the device the 'is'decreased the necessary momentum to ex so small a fly wheeland will not therefore "be as eflicient as the preferred arrangement,

position. a

essure, the valve What'I clai In a pump governorfthe combination of i a speed controlling mechanism; a regulat- -i ng"devi'ce for varying the charge of fluid. pumped; and means acting on'the controlling m'ecl'ianis'm and regulating device to vary the charge asthe controlling mechanism varies the speed.-

' In a pump governor, the combination of a-speed controlling mechanism adaptedto maintain different speeds between a desired minimum and maximum; a. regulating device for varying the charge offluid pumped; and means acting on the controlling mechanism and regulating device -to vary the charge as the controlling mechan- .ism varies the speed.

I 3. In a pump governor, the'combination of a speed controlling mechanism; means con- 'trolled by the pumped fluid for actuating.

said controlling mechanism to effect-a varia tion of speed including intermediate speeds between the desired maximum and minimum; a regulatingdevicefor varyin'gthe charge of'fluid pumped; and means acting on the controllingmechanism and regulat ing device to vary the charge as. the controlling mechanism varies the speed.

4. In a pump governor, the combination of a speed controll ng mechanism comprisin a centrifugal governor; a regulating device or varyingthe charge of fluid. pumped; and means acting-on thev cont-rolling mechanism and regulating device to vary the charge as the controlling mechanism varies the speedi ,5. In a pump'governor, the combinationwith-a speed controlling nie'chanismcomprising a centrifugal governor having a cen trip'etal element and a centrifugal element,

one opposed to thejother; means controlled by thepu nped fluid for varying the power of one'of said elements Within the limits of power of the other of said elements; a regulating device for varying the charge of fl-uid pumped; and means acting on the regulating device for varying the charge as the controh ling mechanism varies the speed.

6. In a pump governor, the combination of a speed controlling mechanism adapted to rary the speed by varying the 'point of cut ofl a regulating device for varying the charge of fluid pumped; and means acting on the controlling mechanism andregulating deviceto'vary the'chai'ge' as the controlling mechanism varies the speed. I

7. tln. a pump governor, the combination of a speed controlling mechanism compr sing a centrifugal governor adapted to vary thespeedby varying the point of cut off; a

regulating device for varying the charge of fluid pumped; and means actingon the-conin m'uinijzlfiosition before --the valve G is oved andthen with acontiniied increasing. 5 moves tof ts minimum.

. trol-linglmechanism and regulating device to my the charge as the controlling mechanism varies; the speed-.- c

8. .In a pump. governor, thejcombination of a speed controlling mechanism adapted to-vary the speed by. varying-the point of cut off and-comprising a centrifugal governor'having a centripetal element and a centrifugal element, one in opposition to the other; means controlledby the pumped fluid for varying the power of one of said elements within the limits of power ofthe other of said elements; a regulating device for varying the charge of fluid pumped; and means. acting on ,the regulating device to vary the chargeas the controlling mechanism varies the speed.- I

I 9. In a" pump governor, the combination of a speed controlling mechanism comprising a centrifugal governor; means controlled by the pumped fluid and acting upon said centrifug'al governor for varying the speed; a

regulating device for varyingthe charge of fluid pumped; and neans acting on the controlling mechanisni'and regulating device to vary the charge as the controlling mechanism varies the speed.

10. In a pump governor, the combination of a controlling mechanism adapted to vary the speed by varying the point of cut off;

means controlled by the pumped fluid acting,

on said mechanism for varying the speed; a regulating device for varying the charge of fluid pumped; and means acting on the controlling mechanism and regulating device to vary the charge as the controlling mechanism varies the speed.

4 111. In a pump governor, the combination of a speed controlling mechanism comprising a centrifugal governor, adapted to vary the speed by varyin the pointof cut off; means controlled by tie pumped fluid acting on said centrifugal governor for varying the speed; a regulating device for varying the charge of fluid pumped; and means acting on the controlling mechanism and regulating device to vary the charge as the controlism adapted to vary thepoint'of cut, off

through said valve gear to vary the speed;

means actuated by pumped fluid for operating said controlling mechanism to vary the speed; a regulating device for varying the charge of fluidpumped; and-ineansacting on the controlling me chanismand regulating device to vary the charge as the controlling mechanism variesthelspeedi on the controllingmechanism and regulating mechanism varies the speed. v

1" In a pump governor, the' combination of a Corliss valve gear; a'speed controlling mechanisir't. comprising centrifugal weights device to vary the charge as the controlling operating upon said valve gear to vary the ing device for varying the charge of fluid point of cut off, eachposition of the weights,

efi'ecting a'fixedpoint of cut off a regulatpumped; and means acting on the controlllng' mechanism and regulating device t'o vary the'charge as the controlling mechanism varies the speed. i

16. In a pump governor, the combination of faCorliss valve gean; a controlling mechanism comprising a centrifugal governor having a centrifugal and a centripetal ele ment adapted to vary the speed through said, valve gearr; means controlled by the pumped. fluid for-varying the relative strength ofone. .of said elements within the limits of power of the other to vary the speedfa regulatin de, ice for. varying 'the'charge '0f fluid pumped ;and means acting" on' the controls ling mechanismand regulating ,device to vary the charge 'as the coiitrolling mechanism variesthe speed. v 17. In a pump governor, the comblnation ofa speed controlling mechanism compris inga centnfugal governor having a centripetal element and a centrifugal'element; a

valve gear controlled by said valve mechanism and adapted to vary the speed by varying the pointv of cut off; andmeans' con-' trolledby the pumped fluid for varying the relative strength of one of the governor-elements within the limits of power ofthe other of said f element-s; a regulating device for varying-the charge of fluid pumped; and

.means acting on the regulating device to vary the charge as the controlling mechanism varies the speed.

18. In a pump governor, the combination" of a speed controlling mechanism comprising a centrifugal governor having a centripetal element and awcentrifugal element; a

Corliss valve gear controlled by'said valve' mechanism and adapted'to vary the speed by varying the point of cut off means con trolled by the, pumped fiuidfor'varying the relative strength of one of the governor ele;

ments within the limits of power of the other of said elements; a regulating device said element. i

varying the chargeof -fluid pumped; and

means acting on the --controlling mechanism and regulating device to vary thechargeas the controlling mechanism varies the speed. 19. In a pump governor, the combination of a .centrifugally acting weight; .a valve mechanism influenced by said weight; a fluid motor having its movingelement connected with and acting with said weight; means actuated by the pumped fluid for controlling the fluidpressure on the motor, said motor having its fluid passages arranged to give a dashpot effect to the motor.

20. In apump governor, thecombinationf of a centrifugal element comprising a cen- -tr1fugal weight, Stud welght being arranged to have its gravity act centrip'etally; a centripetal element acting in opposition to said" centrifugal element; a valve mechanism influenced .bysaid weight; a fluid mpto'r hav- -ing'its movin element connected with and acting with said'weight; means actuated by the pumped fluid forcontrolling the fluid-on said motor to vary the relativestrength of one or said elements within the limitsof power of the other.

21. In a pump governor, thev combination of, a centrifu'gally acting weight; a valve mechanism influenced by said weight and adaptedfto effect the; change of speed by a varlationdn the point of cut oil; a fluid motorhavin'gits moving element connected 'with and acting with said weight; means actuated'bythe' pumped fluid for controlling the fluid pressure onthe motor; said motor having its-fluid passages arranged to give a dash potefi'ectto the motor.

.' 22. In a pumpgovernor, the combination of a centrifugal element comprising a cen trifugal Weight',sai d Weight bein arranged to have its gravity act centripeta l acentripetal element acting'in opposition to said;

centrifugal element ;,-ag valve mechanism influenced-by said weight'and adapted to elfect a changeof speed by varying the point of cut off a fluid motor having its movingg ele ment connected with andactingwith said weight;"lmeans actuated by the pumped fluid for controlling the fluid on .said motor to vary therelative strength of one of said elements within the limits of power of] the other. H v a 1 1 23. In'a pump governor, the combination of a centrifugal element; a centripetal element acting in opposition to said centrifugal elementg a' motor acting" upon one of said elements and actuated by the pumped fluid,

the moving element of the motor being directlyconnectd with the centrifugal element andmoving'with each movement of 24.111 a pump'governor, the combination of afcentrifugal element; a centripetal element acting"opposition'to said centrifugal element; a motor acting upon one of said,

elements and actuated by thepumped fluid,

the moving element of the motor being directly connected with thecentrlfugal .element and moving with each movement of said element and varying the force of one elemen't'; a piston motor acting on one of saidelements and actuated by thepumped fluid, the piston of said motor being directly connected with the centrifugal element and moving with each movement-of said element, said piston motor liaving its fluid passages arranged to give a dash pot efiect. 26. y In a pump governor, the combination of a controlling valve; a fluid motor controlled by the pumped fluid arranged to in fluence said valve; and a device for limiting the pressure 011 said motor to limit its influence on the valve. i v i 27.In a pump governor, the combination of a controlling valve; a centrifugal governor acting on'said valve; a fluid motor i -controlled by the pumped fluid and arranged to influence said valve; and a device for limiting the pressure on said motor to limit its'influence on the valve.

28. In a pump governor, the combination of. a, centrifugalelement and a centripetal element arranged to act in opposition to each other; a controlling valve actuated by said elements; a fluid motor controlled by the pumped fluid and arranged to vary the power of one of'said elements within the limits of power of the other of.- said elements; and a device for limiting the pressure on said motor to limit its action.

' 29. .In a pump governor, the combination of a speed controlling mechanism; a fluid actuated motor arranged to influence said speed controlling mechanism and to be influenced by the pumped fluid,- means for intensifying a change of pressure on the motor over a change of pressure in the pumped fluid; a regulating device for varying the charge of fluid pumped; and means acting on the regulating device to vary the charge as the speed varies.

30. In a pump governor, the combination of a controlling mechanism adapted to vary the speed by varying the point of cut off a fluid actuated motor controlled by the pumped fluid acting on said controller mechanism for varying the speed; meansfor in- "tensifying a change of pressure on the; motor overa change of pressure in the pumped fluid; a regulating device for varying the charge of fluid pumped; means acting on the regulating device to vary the charge as the speed varies.

31. In a pump. governor, the combination of a speed controlling mechanism comprisi-ng a centrifugal governor'adapt'ed to vary thespeed by varying the point of cut oil; a fluid actuated motor controlled by the pumped fluid acting on said centrifugal, governor lor varying the speed; means for inmotor over 1 a change of pressure on the pumped fluid; a regulating device for varying the charge of fluid pumped; and means acting on the regulating device to vary the centrifugal clement, one in opposition to the other; a fluid actuated motor controlled bythc pumped fluid'l'or varying the power of one of said elements within the limits of.

power of the other of said -clcmcnts: means for intensifying a change of pressure in the motor over a change of pressure 111 the pumped fluid; a regulating dcvice for varying the charge of fluid pumped; and means acting on the regulating device. to vary the charge as the speed varies.

33. in a pump governor, the combinatioi of a speed controlling mechanism comprismg a ccntritugal governor; a fluid actuated motor controllcd by the pumped llnid for acting upon said centrifugal governor to vary the speed; means for intensifying a change-of pressure on the motor over a change of pressure in the pumped fluid; a regulating device for varying the charge of fluid pumped; and means acting on the rcgulating device to vary the charge as the sptcd varies.

34 In a pump governor the combination of a torlissvalve gca a controlling mcchani sin adaptcd to vary the'point of cut otlf through the valve gear to vary tlic speed; a fluid actuated motor controlled by the pumped lluid for operating the :outrolling 'mechamsm to vary the speed; means for mten ii'yine' a change of pressure on the motor over a change of prcsun'c m the pumped fluid; a regulating device for varying the charge of fluid pumped; and means acting on the regulating device to vary the charge the speed varies.

In a pump g veinor, the combination of a Corliss valve gerr; a controlling mechanism comprising a centrifugal governor having a centripetal element and a centrifugal clement adapted to vary the. speed through said valve gear: a fluid actuated 1 notor controlled by the pumped fluid for varying the relative strength of one of said elements Within the limits of DOWOI of the other of said elements to vary the speed; means, for intensifying a change of pressure on the motor over a changeof pressure in the pumped fluid; a regulating device for "1 i tensifying the change of pressure on the varying the charge of fluid -pumped; and means acting on the regula-ting'device for varying the charge as the speed varies.

36. In a pump governor; the combination of a speed cont-rolling mechanism comprising a centrifugal governor having a centripetalelement anda .centrifugal element; a valve gear controlled. by said valve mechanism and adapted to vary the speed by varying the point of cut ofl a fluid actuated motor controlled by the pumped fluid for varyingth'e relative strength Mom of said elements Within the limits ofpower of the other of'said elements; means for intensifyfing a change of fluid. pressure on the'motor overa change of pressure in the pumped fluid; aregulating device for varying the charge of fluid pumpedpand means acting on the regulating device to vary the charge as'theaspeed varies.

37. In apump governor, the combination of a speed controlling mechanism; an, intake throttling regulating device for varyingthe charge of fluid pumped; and means actingon the controlling mechanism andregu lating device for varying the charge as the controlling mechanism varies the speedg 38. In a pump governor, the combination of 'aspeed-controlling mechanism adapted to maintain different speeds between a desired minimum-and maximum; an intake throttling regulating device for varying the charge of fluid pumped {and means acting onv the controlling mechanism and regulat- .ing device to vary-the chargevas the C011.

"trolling mechanism varies the speed.

39. In-a pump governor, the combination of a speed controlling ,mechanism; means controlled by'thepumped'fluid for actuatingsaid controlling mechanism to efl ect a variation of speed including intermediate speeds between the desired. minimum and maximum; an intake throttling-regulating device 1 for varying the charge of fluid pumped; and ,means acting on the controlling mechanism and regulating device .to vary the charge as they controlling Inechan v ism varies th'e'speed. l 40. In a pump governor;thejcombination of a4speed controlling mechanism comprising a centrifugal governoffanintake throt; tlin'g regulating device for varying. the charge of fluid pumped; and means acting on the controllingmechanism and regulating device to vary the charge asthe controlling mechanism varies the speed. 41. In a pump'governor, the comblnatlon of a speed controllmgmechanlsm comprising a centrifugal governor having a cen-' tripetal element and a centrifugal element, one opposed to the other; meansj'c'ontrolled by the pumped fluidfor'va'ryingthe povver of one of said elements oyver, of the therg -o intake throttling regulatlng devicefor -v ting the charge offluid pumped and means acting on the regulating device for varying the charge as the controlling mechanism varies the speed.

42. In a pump governoiythe combination charge as the controlling mechanism varies the speed. I

43. In a pump governor,the combination of a speed controlling mechanism .adapted to vary the speed by varying the point of -7O ofa speed controlling mechanism adapted cut off and comprising a centrifugal governor having a centripetal element and a centrifugal element, one in opposition to the other; means cont-rolled by the pumped fluid for varying the power of one of said elements Within the limits 'of power of the other of said-elements; an intake throttling regulating devicefor varying thex charge of fluid pumped; and meansact-ingj on the regulating device to vary. thecharge "as the controlling mechanism varies the speed 44.. Ina pump governor; the combination of a speed controllmgmechanism comprlslng a"ce ntrifugal governor; means controlled by the pumped fluid and acting upon said centrifugal governor forvarying. the speed; an intakeuthrottling regulating device for varying the charge of fluid pumped;.and

means acting on the controlling mechanism and regulating device to vary the v charge asthe controlling mechanism varies the speed.

--45. In a. pump governor, the combination of-a controllingmechanism adapted to' vary the speed by varying the point of out 01f;

means controlled by the pumped fluid acting oni'said mechanism 'for 'varying the speed; an intake throttling regulating device for-varying the chargeof fluid pumped and means acting on the controlling mechanism regulating dev ceto vary the charge as thecontrolling neehanisnr varies *the speed. a

46, In a pump governor, the combination of 'a Corliss valve gear -a .controlhn'gmechr' through said valve .gearto vary the speed;

. an intake throttling; regulating device for varying the charge of fluid pumpedjand meansacting 'on the controlling mechanism 7 and regulating device td. vary the charge as ing a centrifugal governor having a centripetal element and: a centrifugalelernent; a. valve gear controlled by said valve mechanism and adapted to vary' the speed by varying the point of cut off means controlled by anism adapted to vary thezpointlof cut on pumped; and means acting on the regulatingdevice to vary the charge as the controlling mechanism. 'varies the speed.

48..111 a pump governor, the-combination of a speed controlling mechanism; a fluid actuated motor arranged tohnfluence said speed controlling mechanism and-to be in flueneed by the pumped fluid; means for intensifying a change of pressure on,- the mo tor over a-change of pressure in the pumped fluid; anintake throttling regulating device v for varying the charge of fluid pumped; and

" vary the charge as the speed varies.

49. In a pump governor, the combination of a controlling mechanismadapted to vary the'speed by varying the point of'cut ofl'; a fluid actuated motor controlled by the pumped fluid acting on said controlling mechanism for varying the 'sp eed;.means for in tensifying a change of pressure on the motor over a 'change of pressure in the pumped fluid; an intake throttling regulating device for varying the charge of fluid pumped; Vmeans acting on the regulating device to vary the charge as the speed varies.

' 50. In -a pump governor, the combination of a Corliss valve gear; a controlling mechanism adapted to vary the point of cut ofi through the valve gear to vary the speed; a fluid actuated motor controlled by". the pumped fluid foroperating the: controlling mechanism to vary the speed; means for in-.- tensifying a change of pressure on the motor over a change of pressure in the pumped fluid; an intake throttling regulating device for varying the charge of fluid pumped; and

'means acting .on the regulating device to vary the charge as the speed varies.

51. In a pump governor, the combination of a speed controlling mechanism comprising a centrifugal governor having a centripetal element and a centrifugal element; a

valve gear controlled by said valve mech an'ism and adapted to vary the speed by varying the point of cut off a fluid actuated motor controlled by-the pumped fluid for varying the relative-strength of one of said elements Within the limits of power of the other of said elements;'means for intensifying a change of fluid pressure on the motor over a change of pressure in the pumped fluid; an intake throttling regulating device fora-varying the charge of fluid pumped; and means actlng on the regulating device to vary, the charge as the speed varies.

52. In a pump governor the combination 'of a speed controlling mechanism; a regulatmg device for varying the charge of fluid pumped; means-acting on the controlling mechanism andregulating device to'vary the charge as the controlling mechanism varies the speed; comprising a fluid actuated motor controlled by the pumped fluid; and means for intensifying a change of pressure on said motor over a change of pressure in the pumped fluid.

53. In a pump governor, the combination of a speed controlling mechanism adapted to maintain different speeds between a desired minimum and maximum; a" regulating 'de-" vice for varying the charge of fluid pumped;

means acting on the controlling: mechanism a and regulating device to' vary'thecharge as the controlling mechanism varies the speed; comprising aiimd actuatedmotor controlled ying a change of pressure on said motor over a change of "pressure in the pumpedfluid.

over achange of pressure in the pumped 55. In a pump governor, the combination ing a centrifugal. governor having a centripetal element and a centrifugal element, one opposed to the other; means controlled by the pumped fluid for varying the power of one of said elements within the limits of power of the other of said elements; a regulating. device for varying the cl'iarge of .iiuid pumped; means acting on the regulating device for arying the charge as the controlling mechanism varies the speed, said means comprising a fluid actuated motor controlled bv the pumped fluid; and means for intensifying a change of pressure on the motor over a change of pressure in the pumped fluid.

56 In a'pump govcrnoigthe combination of a speed controlling mechanism adapted to vary the speed by varying the point of 'cut off; a regulating device for varying the charge of fluid pumped; meansacting on the controlling mechanism and regulating device to vary the charge as the contmlling by the pumped-fluid; and means for intensimeans aetmgon the regul-atmg device to f of a speed controlling mechanism comprisfor varying the power of one of -said ele merits Within the limits of power of the other of said elements; a regulating device for varying the charge of fluid pumped; means acting on the regulating de'vi'ce" to vary the charge asthe controlling mechanismvaries the's'peed, said'means comprising a fluid actuated motor ,controlled by .the pumped fluid; and means for intensifying a change of preesure on the motor over a change of pressure in'tlae pumped fluid.

58. In a pump governor, thecombination of a speed controlling mechanism compris: ing a centrifugal governor; means controlled by the pumped fluid 'and'acting upon said centrifugal governor for varying the speed; a'regulating device for varying the charge of fluid pum ed means acting on the -controlling mec' anism and regulating device to vary the chargeas the controlling mechanism varies the speed; comprisinga fluid actuated Iriotor controlled by the pumped fluid; and. means for intensifyingthe change of pressure on said motor over a change of pressure in the pumped fluid.

' 59. 4 In a pump governor, the combination of a controlling mechanism adapted to vary the speed byvarying the point of cut off;

I a means controlled by the pumped fluid acting on said mechanismfor varying the speed;

a' regu1ating, -device for varying the charge of fluid .pumped-; meansacting on the conism varies the speed; comprising a fluid actuated motor controlled by the pumped e. i fluid and means iOLlI'ltGIlSlfYlIlg the change of pressure on said motor over a change of pressure in the pumped fluid.

60. In a pump governor, the combination ofa Corliss valve gear; a controlling mechanism adapted to vary the point'of cut off through said valve gear to vary the speed; a regulating device for varying the charge of fluid pumped; means acting on the controlling mechanism and regulating device to vary the charge as the controlling mechanism varies the speed comprising a'fluid actuated motor controlled by the pumped flui'd; and

means for intensifying. the change of pres sure on said motor over'a change of pressure-in the pumped fluid;

61. Ina pump governor, the combination of a speedcontrolling mechanism comprismg a centrifugal governor having a centripetal element and a centrifugal; element a valve ,gear controlled by saidrvalve mechanism and adapted to-vary the speed by varying the point of cut ofi means controlled-by the pumped fluid for varying. the relative strength of one "of the governorelements intensifying a change of pressure on the Within the limits of power of the other of said elements; a regulating device for varying the charge of fluid pumped; means acting on the regulating device to vary the charge as the controlling mechanism varies 1 nd tor over a change of pressure in the pdmped fluid; a regulating'device for vary ing the charge of fluid pumped; means act ing on the regulating device to vary the charge as the speed varies, said means comprising a fluid actuated motor controlled by the pumped fluid; and means for intensifying the change of pressure on the motor over a change of pressure in the pumped fluid 63. In a pump governor, thejcombination of a controlling mechanism adapted to vary the jspeed by .varyin the point of cut oifp a fluid actuatedniotor controlled by the pumped fluid acting on said controlling mech anism for varying the speed; meansfor intensifying' a change of pressure on the motor over a change of pressure in the pumped flu d; a regulating device for'varying the charge of fluid pumped; means acting on the regulating device to vary the charge as-the speed varies, said means eomprising. a fluid actuated motor controlled by the pumped fluid; and means for intensifying the change of pressure on the motor over a change of pressure in the pumped fluid.

6%. In a pump governor the combination of a Corliss valve gear; a controlling mechani'sm adapted to vary the point of cut off through the valvegearto vary the speed;-a

fluid actuated motor controlled by the pumped fluid for operating the controlling lnec hanismto vary the speed; means'for intensifying a change of pressure on the motor over? a change of pressure in the pumped fluid; a regulating device. for varying the,

charge of fluid pumped; means acting on" the regulating device to vary the .charge as the speed varies, said means comprising a fluid actuated motor controlled by the pumped fluid; and means I for intensifying the changeof pressure on the motor over a change of pressure-in the pumped fluid.

.65. In a pump governor, the combination of a speedcontrolling mechanism comprising acentrifugal governor having a centripetal, element and a centrifugal element; a yalv'e gear controlldby said valvem echanlsm andadapted to varythe speed by varying" the point of cut oif; 'a fluid actuated motor controlled by the pumped fluid for varying the relative strength of one of said elements Within the limits of power of the other of said elements; means for intensify- 1 ing a change of fluid pressure on the motor over a-change ofpressure in the pumped.

- fluid; a regulating device for varying the charge of fluid pumped; means acting on the regulatingdevice to vary; the charge as the speed varies, said meanscomprising a fluid I vactuated .motor controlled by the pumped controlling mechanism and regulating de-'.

vice to varythe charge as the controlling mechanism varies the speed; comprising a fluid 'actuated fmotor controlled by the pumped fluid; and means for intensifying a change ofpressure on said motorover a change of pressure 'in the pumped fluid.

67. In a pump governor, the combination of a speed controlling mechanism comprismg a centrifugal governorhaving a centripetal element [and a centrifugal element, one.

opposed to the other; means controlled by thepumped fluid forvaryingthe power of one of said elements Within thev limits of power of the other of said elements; an intake throttling regulatingdevice for vary-' ipg the charge of fluid pumped means act- 5 ihg on the regulating device for varying the charge as the controlling mechanism'varies" the speed, said means comprising a fluid ac-,'

tuated motor controlled by the pumpedfluid; and means for intensifying a change 40 of pressure on the motor over a change of pressure in.the pumped fluid.

' 68. In a pump governor, the combination of a controlling mechanism adapted to vary the speed by varying the point of.eut.off; means controlled by the pumped fluid acting on said mechanism for varying the speed;

' an intake throttling regulating device-for varying the charge of fluid pumped; means j acting on" the "controlling mechanism and regulating device to'vvary the charge as the controlling mechanism varies the speed I comprising a fluid actuated motor controlled by the pumped fluid"; and means'for intensifying the change of pressure on said motor over a change of pressure inthepumped I 69. In' .apump governor, the combination of a Corliss valve gear; a controlling mechanism adapted to vary the point of cut ofl' so through said valve gear to vary the speed;

anintake throttling regulating device for varying the charge'of fluid pumped; means actlng on' the controllingmechanism and regulating device to vary the charge as the controlllng mechanism varies the speed;

comprising a fluid. actuated motor controlled 1 by the pumped fluid; 'and means for intensifyingthe eh'angeof pressure on said motor over a change of pressure in the pumped fluid.- 70. In a pump goycrnor, the combination of a speed controllmg mechanism adapted to maintain different speeds between a desired maximum and minimum; and-an intake regulatmg, device for varying the charge pumped. p

7-1. In a pump governor, the combination of a speed controlling mechanism adapted to maintain different speeds between-a desired minimum andmaximum; an intake regulat mg device for varying the chargepffluld pumped; and means acting on the control-' nd regulating device to ling;- mechanism vary the charge as the controlling mechan sm varies the speed.

72. In a pump governor, the combination of a' speed controlling mechanism; means controlledby thepump fluid for actuating said controlling mechanism to cflect a. variation ofspeed including intermediate speeds between the desired maximum and minimum; an intake regulating device for varying the charge of fluid pumped; and means acting on the controlling mechanism and regulating device to vary the charge as the controlling mechanism varies the speed.

73. In a pump governer the combination (ifa speed controlling mechanism; an intake throttling regulating device forvarying the charge of fluid pumped; and means acting 'on the controlling mechanism and regulating device to 'varythe charge as the controlling mechanism. varies the speed.

74:. In a pump governor, the combination of a speed controlling mechanism; means controlled by the pump fluid foractua'ting said control-ling mechanism to effect a varia-' tion of speed including intermediate speeds between the desired maximum and minimum; an' intake throttling-regulating device for varying the charge of fluid pumped; and

means acting on the controlling mechanism f v.and regulating device to vary the charge as the controlling mechanism varies the speed.

T 7 5. .In a pump governor, the combination of a speed controllingmechanism; a regulating device for varying the charge of fluid pumped; a motor controlling said mechanism; a motor controlling said device; and a single means controlling the energy acting on both motors.

76.' In a pump governor, the combination of a speedcontrollmg mechanism; a regulating-device forvarylng the charge of fluid pumped; a fluid actuated motor controlling" said mechanism; a fluid actuated motor controlling said device; and a si .rle valve mech-- anism controlling said motors.

'77. In a pump governor, the combination of a speed controlling mechanism; a regulatpumped; a fluid actuatedmotor controlled by the pumped-fluid for actuating said'mechanism; a fluid actuated motor controlled by the pumped fluid for actuating said device;

, and a single means-for intensifying a change of pressure on said motors over a change of pressure in the pumped fluid.

78. In a pump governor, -;the [combination of a controlling mechanism adapted to vary the speed by varying the point of cut oil; means controlled by the pumped fluid acting on said mechanism for varying the speed; a

regulating device for varying the charge of ,fluid pumped means acting on' the control ling. mechanism and regulating device to vary the charge-as the controllingmechanism varies the speed, to act upon said controlling mechanism and regulating device to I vary the charge pumped as the speed varies.

In testimony whereof I have hereunto set M. C; SULLIVAN.

my hand in the presence of two subscribing