US1105747A

US1105747A - Internal-combustion pressure-pump.

Info

Publication number: US1105747A
Application number: US73?66312A
Authority: US
Inventors: Ransom Y Bovee
Original assignee: Individual
Current assignee: Individual
Publication date: 1914-08-04
Anticipated expiration: 1931-08-04

Description

H. Y. BOVEE.

INTERszAL COMBUSTION PRESSURE PUMP.

AYLIUATION FILED DEO 2G, 1912. 1, 105,747.

Patented Aug. 4, 1914.

3 SHEETS-*SHEET 1.

R. Y. BOVEE.

INTERNAL COMBUSTION PRESSURE PUMP.

R. Y. BUVEE.

INTERNAL GOMBUSTION PRESSURE PUMPl APPLIOATION FILED 1330.26, 1912,

1,1 05,747 Patented Aug. 4, 1914.

s SHEBTSSHEET s.

LII. m

RANSOM Y. BOVEE, 0F DENVER,

CLRADO.

INTERNAL-COMBUSTION ERESSUREPUMP.

Application filed December 26, 1312,

To all whom. t may concern:

lie it known that I, RANsoM Y. Bovina, a citizen of the United States, residing at Denver, in the county of Denver and State of Colorado, have invented certain new and useful Improvements in Internal-Combustion Pressure-Pumps, of which the following is a specification.

My invention relates to an internal com bustion pressure pump and its principal object resides in the provision of a simple mechanism which is operated by the expansive torce of an ignited charge of gaseous tiuid. periodically delivered thereto from a suitable source ofsupply, and which by the same force exerted upon the surface of a body of water, will raise the same to' a determinate elevation.

My invention is particularly adapted tor use in pumping water from a well or other' subterranean source, and its construction is such that afterthe mechanism has been initially started, its subsequent operation is substantially automatic as long as the supply of gaseous Huid continues. Several ndjustments are provided to regulate the movements of the operative parts of the pump, the frequency of the explosions and the admission of expansive gases to the water to be raised, in accordance with varying circumstances and the height at which the water is discharged above its natural level, and an automatic lubrication system supplies the contacting surfaces of the operative parts of the pump with the lubricant necessary to reduce friction.

The above and other objects which be fully brought out in the followingl descri tion, I attain by the mechanism s own in t e accompanyin drawings, in the various views of whic like parts are simi larly designated and in which,

Figure l. represents a fragmentary elevawill tion of my internal combustion pressure Fig. 2 of the a fragmentary, longitudinal lower portion ot" the c linder its construction and su jacent longitudinal section of the upper portion o the cylinder. Fig. il, a section taken along the

line

4,4, Fig. Q. Fig. 5, a section along the line 13H5, Fig. i?, and Fig. 6, an enlarged, sectional view of the upper portion of the stuffing box im the upper cylinder head, showing the cirenit closer which automatically times the ignition of the charges of the explosive itluid,

pump. sectie Specification of Letters Patent.

' upright` site ends by means of two heads 3 and upper one of which is "-.vhieh is formed integral with t above the upper surface of the same.

,the flow of tlui from the jby the ball valve. lil is normally maintained upon its scat by 'means of ar spring iff which being coiled 'Patented Aug. 4, 1914.

Serial No. 'E

and the valves employed to regulate the` cushion which checks the upward motion of the piston, and Fig. i', section taken along the line 7--7, Fig. 3.

Referring more specilieally to the drawings, the reference numeral 2. designates an hollow cylinder closed at its opp@ 4, the provided ivith an integral stutlingliox 5 in which the hollow rod 6 ot' a piston Y is slidably titted. The bore of the box is enlarged at its outer end to receive the parking 8 and the vertically ad `instable gland ti, and the same is enlarged at chamber 'l0 for the reception of a plunger of corresponding diameter e piston 7 Two rbeclf. valves l?, and i4 applied in separate compartments of a common housing lo which is secured in an opening in the wall of the chamber it), are constructed to respectively permit the outtiow and inflow of gases from and into the same. The egress valve lil is composed of a ball which is normolly seated bv screw valve 1G is provided to regulatel by its position relative to a seat in the housing l5, opening controlled The conical ingress valve around the exterior, threaded portion of its stem, is disA between a screw cap on the valve housing4 and a nut wiuci is `screwed onto the extremity oi the said stem by which to regulate the degree ot pressure 'the inflow of air into the compression chamber is opposed.

A lubriratm' in has :i peut lilwhieh eonnects oitli :in opening in the wall of the chamber iti to suppl); oil to a plurality of retainingr grooves tici-ined inits interior surface, and the salue iuiirirator which is Sccured upon tincylinder entes with a circular formed in the flange at the upper end of the cylinder upon nhirh the said head is Supported and which has a plurality of ports through ivhieli the lubricant is conducted to the interior surface et the cylinder.

The pistou T which i cylinder and provided with the usual pack ing rings has u rrntial chamber 2l which communicates with the hollow 'piston rod :intomatirA pressure and u' lidnlily iitted in the.`

'its inner extremity to provide an annular i compression "ad L comxminia'.:

llO

and which is closed by means ot a housing which is secured upon a central extension of the piston in spaced relation to the lower' surface of the same. This housing is composed ot a body portion 22 and a cover 22 which is screwed upon the lower end thereof and it is provided in its upper portion with a plurality of segmental ports 23 which are alined with similar ports 24 in the body portion of the piston.

A disk valve 31 controls in the operation of the pump, the flow of gases between the portions of the cylinder at opposite sides of the piston and between the interior ot the cylinder and the chamber 21, and it is by means of a yoke 25 and studs 32, secured at the lower extremity of a rod 26 which extends through the piston rod 6.

A cap 27 which is secured atthe upper end of the hollow piston rod has in its upper surface, an opening through which the rod 26 extends. A valve 28 is supported upon the said surface to normally close the said opening, and a coiled spring 29 is disposed between a nut 30 on the rod and a bushing in the valve 28 for the purpose of holding the valve 31 in its normal position in which the ports 24 of the piston 7 are closed. A standard 33 on the cap 27, carries at its upper end, a rotary cam 34 which is adapted to move the rod 26 longitudinally by engagement with the upper end thereof for the purpose of lowering the valve 31 to uncover the ports 24.

A'ifcarbureter 35 which connects with a gas-supply tank 36, is connected with the interior of the cylinder 2 by means of a conduit 37, and a lcheck valve 38 is applied to ythe said conduit for the purpose of pre venting the return-How of gases from the cylinder.A

During each downward movement of the piston 7, a charge of gases is drawn from the carbureter into the cylinder and is at a Vdeterminate point in the said movement, ighited by means of a spark plug 39 which 1s disposed in an opening of the conduit. 37 and whose separated contacts are connected at opposite sides of a break in a normally open electric circuit which includes a battery or spark coil disposed in a conveniently located box 40.

The means by which the circuity is periodically closed to cause a spark to traverse the space between the contacts of the plug, consist of a contact blade 41 which is mounted the cylinder head 4 in insulated relation thereto as is best shown in Fig. 6, and a block 42 which is clamped around the piston rod and which has two legs 43, one of which is disposed to engage the blade 41 during downward movement of the piston, the said blade and the said clamp being connected at opposite sides ofy a break 1n the electric circuit.

'l'he block 42 limits the downward movenient of the piston 7, bythe engagement. of its legs 43 with the upper surface of the stuffing box 5. Guide rods 44 which are erected on the stutling box extend loosely through diametrically opposite bores in the block 42 and coiled vcushion springs 45 are secured at the upper ends of the said guide rodsyto be engaged by the clamp 42 at the termination of the upward movement ot' the piston. The rods 44 also serve as a medium for the adjustment of the gland f) whose flange has, to this end, been provided with openings through which the rods loosely extend, and whose upward displacement is prevented by the engagement of two stop nuts 46 which are screwed upon the threaded lower portions ot' the rods. The block is furthermore provided with two opposite laterally projecting handles 47, best shown in Fig. 7, which afford a convenient means for raising the piston when the pump is started at the beginning of its operation.

The portion of the pump which extends into the well or other source of water supply, includes an exterior casing 48 which, in axial alinement with the cylinder, is connected at its upper extremity with a mantle 49 which surrounds the latter in spaced relation to its exterior surface and which at its upper end has an outletconduit 50 through which the raised water is discharged from the pump. The mantle 49 besides constitutingr a` part of the discharge conduit in which the water displaced by the action et the pump, is raised, provides a water jacket which absorbs the heat generated in the cylinder by the periodical explosions of the gaseous mixture. The lower portion of the casing 48 is perforated to admit the water in which it is immersed, to its interior, and to exclude rock, sand and other solids, and the casing has at a point of higher elevation, an interiorly applied ringr 51 which constitutes a ledge from which the two water chambers required in the operation of the pump as will hereinafter be described, are suspended.

The two chambers above referred to are provided by two

concentric cylinders

52 and 53 which are connected at their upper ends by an annular head 54 which surrounds the upper, open end of the inner cylinder and closes the corresponding extremity of the outer one.

The head 54 has a surrounding flange which rests upon a rubber gasket placed upon the ring 51 in thc casing and it has two openings in which are secured, two

conduits

55 and 56 of di'erent diameters which at their opposite ends, project through stul`- ing boxes in the lower head 3 of the cylinder. The larger one, 55, ofthe two conduits terminates in the upper portion of the exterior chamber 53, the other conduit extends down 15 to support a 55 into the 'ifyiindcr, is explodedn 65 by causing the foot mower which control the flow of gaseous tluid there through and whose Steins project through sttihng boxes on the casing 48.

The lower extrelpity of the inner chamber lares outwardy and is' provided at a point above the' lower end of the` outer chamberv with an annular valve seat 5) upon whiclra'fo'ot valve G0 is loosely supported.Il andi-a similar valve seat Gl applied at the extremity vof the outer chamber is provided correspondingly formed valve 62. The valves are guided during4 their up and downward motion by means of pins (33 and (El which being secured upon central portions of the valve seats, extend loosely through openings in the respective valves andare provided at their upper ends with hcadsto limit the upwuird increment o I the same. In the operation of the pump, the casing 48..;,is lowered in the well or other source ot' water*n supply runtil the

chambers

52 and 55? areQcntirely submerged. The upward flow ,Fvoff'the' water normally holds the foot valve dfo'fl the outer orreceiving chamber elevatedabove its seat, while the weight of the`A waterr cont'ainedin theinner or discharge chamber 52 closes the .foot valve (3() at the 1P43lowerzcnd thereof. To start the puinp7 the Vpiston kis raised by vmeans. of the handles 47 on 'thebloeklQ after the valve 31 has been 40 throughout the cylinder, After the cani has' been returned to its original position, the piston 0n beingireleased descends by gravity and during its downward movementa draws achzfirge gaseous :mixture ltroni the car-- 47' bureter into the cylinder.

At the termination of th graviative movement: ,of lthe piston, which is determined by the engagement of the legs on the clamp 42 with the upper surface oi the stu iugbox on the uppei'foylinder head, the si-A multaneous closing of the electric cirieuit causes an electric spark te traverse the space fbelwieen the contacts of the spari: plug45 with the reprit thatl the charge of The conse- (uent expansion of the guses in the eylin der lowerA the valve 3l against the pressure of the spring il?) thereby closing the exhaust porti; 352 am. (,peuuwl ports through Fb which the gases: rush cylinder below the lluid entering throu upon the water con chamber und dri refr-i idlyVI thereA in the valve .at the bottom of the inner chamber to simultaneously open. The displaced water having no other means of escupe, is thus driven upwardly through the chamber :7i/2 and the therewith communicating upper portion of the discharge conduit i8, into the jacket around the cylinder from which it is discharged through the outlet 50. I

l'Vhen, by lowering of the valve 3l, coluniunieation is estubhshed between the portions of the cylinder at opposite sides of the pistou, the pressure of the expansive gases upon the lower piston surface whose area is by the closing o1 the exhaust ports 23, increased to exceed that or' the upper surface, will drive the piston upwardly until its .movement is arrested by the cushion of compressed gases in the chamber 10 into which the plunger l2 of the piston has entered, and the simultaneous engagement of the block Ll2 with the springs 45. When the piston has reached this position, the decrease in density of the gaseous liuid contained iu the cylinder causes the valve 3l to move to its original posit-ion by expair sion of the spring 2t) whose tension has previously been regulated to slightly overhalance the weight et' the piston. 'lhe gases which remained in the cylinder, the conduit :35, and the chamber 53 are exhausted through the hollow piston rod past the valve 23 which/is raised. by the upward flow of the saine and as soon as the gases have left the cylinder, the said valve closes by gravtatiou and thus prevents air from entering the same. The cushion formed in the compression chamber of the head 4 is at the san/ie time dissipated by the discharfe ofthe gases past the cheek valve 13 and the space formerly occupied by the cushion is subsequeutlyvhlled with air. of atmospheric pressure which enters the chamber l() past the check valve i4, the velocity with which this air lo'ws into the said space, being determined by the pressure o' the spring 17. When the space in the annular chamber above the plunger l2 has thus been filled with air, the piston will, by reason of th? partial vacuum' existing in the ortion o the cylinder below the same, dliseend by grav; new supply of Water will at the saine time ascend in the receiving cha'mher, and the above described action is repeated, it will thus be observed that in the operation of the pump, a rapid reciprocating movementl is automatically imparted to the piston as long as the supply ofgases continues und' that in consequence, water will be continuously discharged through the outlet fr0 in a substantially uninterrupted stream. l y

When au accumulation of sand or 'ther solids below the chambers Si), and 53 threatens' to interfere *with the proper operation of the apparutus;y the vulve 57 in the eonduit is temporarily closed and that in the conduit 56, opened, whereby thegases are delivered from the cylinder into thev lower portion of the casing 48 to drive theY obstructive matter upwardly through the chamber and the jacket to be discharged through the outlet 50.

In the ordinary operation of the pump the valve 57 in the conduit 55 is entirely or partially opened to regulate the downward llow ofc-gases, in accordance with the resistance oll'ercd by the bveight of the column of water to be r ised, it being obviouslyv essential that the pressure of gases below the piston remains at. all times suflicient to drive the same upward. The. stroke of the piston may be varied in accordance vith diil'erent circumstances by changing the position of ,the `elamp l2 which limits the downward movement of the piston and determines the time of ignition ot' thc charge, on the piston rod.

The oiling system above explained, antoinatically supplies the oil to the contact surfaces of the inovingparts to lessen friction and when for the purpose of repairsI or inspection, it is desired to remove the eylinde r and the water chambers, it is but necessary to detach the upper cylinder head from the casing and remove the valves 57 and 5S which 'leaves the cylinder and the water chambers, free to be moved upwardly out of the casing 48 and the thpreto attached mantle 49. Y

Having thus described my i I claim and desire t0 secure by Lettcrsdatent is:

- 1. An internal combustion pressure pump comprisinga4 cylinder having' at its opposite ends, respectively, an inlet and an outlet for gaseous fluid, a chamberin cominunieation with said outlet and adapted to connect with a source of water-supply, a discharge con duit connected with said chamber, a pistou having 'a reciprocating movement in the cylinder and provided with ports` for establishing communi'ation between the the cylinder at oppirsite sides of the piston, a valve normally closing said ports and adapted to open the same by the explosion of lluid in one of said portions, means for opening said ports, by manually adjusting the valve from a point outside the. cylinder, and means for igniting a charge of explosive gases in said cylinder at a determinate'point in the movement of the piston.

2. `An internal combustion pressure pump comprising a cylinder having at its opposite ends, respectively, an inlet and an outlet for gaseous tluid, a chamber in communication with said outlet and adapted to connect with a source of water-supply, a discharge conduit connected with said chamber, a piston having a reciprocating movement in the cylinder and provided with ports for establish ing ommunication between the portions of nvent ion whatportions ots the cylinder at opposite sides of the piston, a hollow rod to which the ston is attached, a valve for controlling t 1e flow of gases through said ports and from the interior of the cylinder into the said rod, a stem on said 'valve extending through said rod, a spring normally holding said valve to close the ports in the pistn, and means for igniting a charge of esplosiva gases'in the cylinder at 'a determinate point in the movement of the 75 piston. l Y

3. An internal combustion pressure pump comprising a cylinder having at its opposite ends, respectively, an inlet and an outlet 'for gaseoustluid, a chamber in communication 30 with said ont-let and adapted to connect with a source of water-supply, a. discharge com, duit connected with said chamber, a piston haring a 'reciprocatingmovement in the cylinder and provided .w1th ports for establish- 85 ing communication. between the portions of the cylinder at opposite sides of -he piston, a hollow rod attached at its inner. end to the piston, a valve 'for controlling the [low` ot gases through said ports and from the interior of the cylinder into said rod,- spring` normally holding said valve to clos tie ports in the piston, a valve normally closing the outer end of said rod and adapt-. ed to open` the same by a flow of gases through the rod, and means for. igniting a charge of explosive 'gases inthe cylinder at. `a determinate point 1n the movement of the vpiston.

4. A comprising a cylinder having at its opposite ends, respectively, an inlet and an outlet for gaseous fluid, a chamber in commnnicatiglln vrlfsfiid outlet and adapted to connect wi* I charge cond Yimected with sai Chamber, a pistonhaving a reciprobating movement in the cylinder and provided with ports for establishing eonnnunication* besite sides ot' the pistou, a hollow rod attached at its inner end to the piston, a valve for contrdlling the [low of `gases through said ports and from the interior of the. cylinder into said rod, a stein on said infr through said rod, a spring normally lnilding said valve to close the ports in the pistou, a cam on said rod adapted to displace the valve by engagement with said explosive gases in the cylinder at a determinate point in the movement of the piston.

5. Inv an internal combustion pressure pump, a cylinder having at one of its ends, an inlet for gases and a compressionochamber, and at its opposite end, van outlet, a, chamber in communication with said outlet and adapted t connect with a source of water-supply, a discharge-onduit in communication with said chamber, a piston havn internal lcombustion presnrepump tween the portions ot' the cylinder at oppo- 110 valve extend` stem, and means for igniting a charge of in a reciprocating movement in the cyliiu cr, uicnm to rntzdllidi communication )etwcen thc portions of the latini' at opposite sides of thc piston by the explosion o tiuid in one of said portions, said pif-ton having n plun cr adapted to enter Said Con'ipression cham er for thc formation of n gaseous cushion, n system for automatic lubrication of the surfaces of the cylinder and the coinpression chamber, and means Vfor igniting a charge of explosive gases in said cylinder at a determinate point in thc movement of the pieton. 9

0. An internal combustion pressure pump comprising a cylinder having at its opposite ends, respectively, an inlet and an outlet for accus fluid, a chamber in communication with said outlet and adapted to connect. with it source of water-supply, a discharge conduit in communication with said chamber, s,

iston having a. reciprocating movement in said cylinder` means to establish communin cation between thc portions of the cylinder at Opposite sides o the piston by the, cxplo sion of fluid in ono of said portions, a, rod on said piston extending through. an opening in thc cylinder, a spark-plug in an electric circuit, and a circuit-closer normally breaking said circuit and comprising n contact secured to said rod, and n fixed Contact disposed to he engaged by the tiret-mentioned cont-act nt a dctermilmte point in the stroke of the piston.

7. An internal combustion pref-Heure pump comprising u cylim i, having :it its opposite ends, rcspcctivcly. an inlct and an outlct for gaseous fluid, :i chamber in conununicution 'with said outlet und adapted to .:onncr-,t with 1 sourctl of water Supplyn n discharge conduit in communication with smid chumber, a piston haring a reciprmfating move ment in said cylinder, menus yto cntoblish conmiunimition between the portions of thc cylinder at oppoiitc sides, of the piston by the explosion of iiuid in onol of said portions, n rod on said piston 'xirnding through an opening in thc cylinder.v n spurl;- ilug iti an electric circuit, oud n circuitclo'scr normniiy lncnltinq mid circuit find Comprising n Contact ndjustublv .-tccf-rcd to said rod, and fr tired conimft disposicd to bc engaged by the, iirst-lmentioncd contact nt n dt'ormincd noini in thc s: roii'e of the piston.

8. An internni combustion prcasurc puinp compi-ising;` :i cyiindcr havingV nt its oiiponilc ends. respcrtivrij', :tn inlet finzi nn outlet for gaseous fluid i .miubcr in connuuniczttion with :end outlet und nduplcd to comm-t with n source ot' watt-r supply, :l discharge condfft in Munn:uuicniion with mid channhrr. o piston herring n reciprocating morcmrnit in f-nid cylindcr, incanti; to establish comuninimiion between the portions" of thc cylinder nl oppor-:itc sides, of the piston by he n.'plcieicn of tinid in one, of Said p0rtions, n rod on said piston extending through :in opening in the cylinder, a sparkplug in un elcctric circuit, und n circuituloecr nornndly hrcnking Suid circuit and comprixing n contact secured to said rod 'find adapted to limit the movement of the piston in one dircction by engngcmcnt with n relatively stationary part, und a fixed conzict disposed to be engage-l by the rstmcntioncd Contact at a, determinate point in the Stroke of the piston,

9. An internal combustion pressure pump comprising a cylinder having at its opposite ends, respectively, an inlet and un outlet for gaseous fluid, it chamber in communication with said outlet and adapted to connect with n source of water-supply, a discharge conduit in communication with said chamher, a, piston having u reciprocating morc- Incnt in said cylinder, menus to establish communication between the i-ortions of thc cylindrr nt opposite Sides of the piston by thc cxplofeion of iluid in one oi' said portion, :i rod on through un opening in the cylinder, moans for igniting n charge of cxplonivc gais-cs in the ryliudrr at :t dctcrminntc point in thc movement of the piston. :ind u, block sccurcd to Suid rod for limitingr thc movrmcnt of thc piston by cngugcnunt with :t sitntion- :uy pnrt.

10. An intcrnal combustion prcSSurc pump compriing a cylindrr bovinor :it its oppos-'itc ends, rcspcrtivcly, :in inlct und :in outlct for gnscoun fluid. :t clnunbcr in rommuuirotion with Suid outlct ond adapted to couuccty with n source of wzxtcr supply, a discharge conduit in communication with Said cl'uunbcr, a piS-on lmriug n rcciprocutin tr morcnunt in Suid cylinder. moons to cslnblinh communirntion betworu br ll'utiou oi the cylinder :it opposite nidos of thc piston by (lic explosion of fluid in ouc oi Suid portions, :i rod on Said piston cxtciuling through :in opening in the cylindrr, minus i'or inuitini; n chui- 10, ot' explosive troncs in the Cylindcr nl', :i dolci-minuto point in tli'c inovrmcnt of thc. pistou. guido ind-z on tho ('y/lindrr. cualiion sprinnf-` on amid rods, und u block movable ou sold rods nud Secured to the piston rod for limiting thc movmmsnt ot the piston by alternato cunngcuicnt with the. said springs nud with :i stntionnry part,

ll. An iutcrnnl cnndiurtiou prin-:ure pump comprising it c vlindcr having :it its oppositr cndii, rci-'prctivrl},'. un inlet and nu outlet for gjm-icons iiuid` n rhzuubor in rouiniunirniiou wiili huid outlrt nud adapted to couucr't with n nourcc of w-,itcr ysupply. u dischurgc conduit in commuuicntion with Suid chamber, :i piston having u reciprocating movcmont in Suid cyliudcr, means to establish communication between the portion of the cylindr at opposite sides of the piston by the explosion of fluid in one of said porsnid piston extendingv tions, a rod on said piston extending through a stalling` box on said cylinder, means for igniting a charge of explosive gases in the cylinder at a determinate point in the movement` ot the piston, a gland in said stutling box, a block secured to the piston rod, guide rods ou said cylinder alongfwhich said gland and said block are movable, and springs on said guide-rods to be engaged by said block at a determinate point in the movement of the piston.

l). An internal combustion pressure pump comprising a cylinder having` at its opposite ends, respectively, an inlet and an outlet for gaseous Huid, a piston havinga reciprocat ing movement in said cylinder, means to establish comniunication between the portions of the cylinder at opposite sides of the piston by the explosion of fluid in one of said portions means for igniting' a charge of explosive gases in said cylinder at a determined point in the movement of the piston, a mantle forming a water-jacket around said cylinder, and a chamber in communie; tien with said outlet and with said jacket and adapted to connect with a source of water-supply.

12%. An internal combustion pressure pump, comprising a cylinderl having at one ot its ends, an inlet and atv its opposite end, two outlets for gaseous tluidv` a piston havinn a reciprocating movement in said cylinder, means to establish communication bctween the portions of the (wlinder at opposite sidts ot' the piston by the explosion ot' tluid in one of said portions. means for ignitingl a-charg'c of explosive gases in said cylinder'at a determinate point in the movement of the piston, a chamber adapted to connect with a source of wateiesupply, a dischargi'e conduit connected with said chamber, and two valvecontrolled conduits connected respectively with the outlets in the cylinder for the discharge of gases in tht` upper portion ot' the said chamber and at a point bclow the same.

H. An internal combustion pressure pump comprising a cylinder having; at its oppo-ite ends. respectively, an inlet and an outlet t'or `gaseous fluid. a piston havingl a reciprocating movement in said cylinder, means tio establish commimieation between the portions of the cylindt at opposite sidesy ot' the piston by the explosion of fluid in omol' said portions. means for ignitiug a charge `o1 explosive gases in said cylinder at a de terminate point in the movement ot' the piston, a discharge conduit, a rc1-chine' cluuu ber adapted to connect with a ``uti-ce et water-supply and commuricating with the outlet ol the cylinder. a disclmrfcchamber in communicatiou with the rec-Ming cham ber and with the di charj conduit, and

source ot and from the latter into the discharge chamber.

l5. An internal combustion pressure pump comprising` a cylinder having at its opposite ends, respectively, an inlet and an outlet for garcons fluid, a piston ha ving a reciprocating movement in 'said cylinder, means to establish communication between the portionsxof the cylinder at opposite sides of the piston by the explosion ot' fluid in one of said portions, means for iguiting a charge of explosive gases in sa id cylinder at a deter minate point in the movement of the piston, a discharge conduit, a receiving chamber adapted to connect with a source of watersupply and communicating with the outlet of the cylinder, a discharge chamber in communication with thc, receiving chamber and with tbe discharge conduit, one of said chambers surrounding the other, and valves controlling the How of water fromthe source of supply into the receiving chamber, and from the latter' into the discharge chamber.

16. An internal combustion pressure pump comprisingr a cylinder having at its opposite ends, respectively, an inlet and an outlet for gaseous tluid, a piston having a reciproeating movement in said cylinder, means tov establish comuiunication between the portions of the cylinder at opposite sides of the piston by the explosion of tiuid in one of said portions, means i'or igniting a charge of explosive gases in said cylinder at a dcterminate point in the movement of the piston, a discharge conduit, a discharge chamber in eonui'iunication therewith, a receiving chamber corun'mnieating with the outlet of the cylinder and surrounding the discharge chamber, the lower extremity of the said receiving chamber being belo .v the correspondingr end of the discharge chamber, and valves controllingl the llow ot fluid into the lower-ends of said chambers.

t7. fin internal comlmstion pressure pump comprising,r ay cylinder having;l at its opposite ends, respectively, :in inletand an outlet for `gaseous tiuid. a piston having; a reciprocatinn` movement in said cylinder, means to establish con'nriunicatien between the portions et tbecylinder at apposite sides oi the piston by the explosion of .tluid in one of said portions. means for ignitingg' a charge of explosive gases in said cylinder at a determinate point in the movement oi the piston, a discharge conduit, a discharge chamber in communication therewith, a receiving chamber communicating with the outlet. of the cylinder and surrouiuline' the discharge claniber. thel lower extremity ot the said receiving chamber being below the cmrresporfd` ing end ot' the dischargechamber. and gravity valse@ controlling` thc flow if lluid'into '.hc lower cutis of said chambers.

la. ,in internal combustion pressure pump comprising a cylinder having at its supply, a conduit connected with the outlet of the cylinder and extending into the receiving chamber, a valve for controlling the flow of fluid through said conduit, a discharge chamber in communication with the receiving chamber and with the discharge conduit, and'valves controlling the flow of water from the Source 'of supply into the receivingchamber and from the latter into the discharge chamber.

19. An internal. combustion pressure pump comprising a cylinder at its opposite ends, respectively, an inlet and an outlet for gaseous fluid, a piston Ahaving a reciprocating movement in said cylinder, means to establish communication between the portions of'the cylinder at opposite sides of'the piston by the explosion of iluid in one of said portions, means for igniting a charge of explosive gases in said cylinder at a vdetermiiiatepoint in the movement of thefpiston, a-ii upright casing having a discharge A opening in its upper portion and an inlet for water at its lower end, a receiving cham ber and a discharge chamber placed one within the other, within said casing, valves controlling the flow of water from said eas-l ing into said receiving chamber and from the latter into the dischargefchamber, and a. conduit connecting the outlet ofthe cylinder with the receiving i chamber,

20. An internal combustion pressure pump comprising a cylinder having `at its opposite ends, respectively, aninlet andan outlet for gaseous fluid, a piston having a reciprocating movement iii said cylinder, means to establish communication between the portions of the cylinder atoposite sides 0f the piston by the explosion of fluid in one of ,Said portions, means for ignitinga charge of explosive gases in saidcylnder at a determinate point in the movement of the pistcii, a mantle forming a water jacket around the cylinder arid-having an outlet, a casing connected with said' jacket and ha'vinga water inlet at its lower end, a receiving chamber and a discharge chamber placed one within the other, within said'fca'sing, valves cont-rolling the flow of Water from said casing` into said receiving chamber and from the latter into the discharge chamber` and fi con- .n with the receiving chamber.

21. An internal combustion pressure duit eonnectiuo the outlet of the cylinder plosive gases ,in said-cylindre pump comprising a cylinder lhaving atfone of its ends, an inlet and atits opposite fend, two outlets for gaseous fluid, a pistonilaving a reciprocating movement ins aid-cylin` der, means to 'establish communication between'tlie portions of the cylinder i opposite sides of the piston by the explosi of fluid in one of said portions, means for, ignitiiiga charge of lexplosive gases insaid cylinder at a determinate point in thelriove- :nent of thel piston, a-n upright casing tvfing a discharge opening invits upper portion and an inlet for water at its 'lower` end, a receiving chamber and a discharge- ,chamber lplaced one :Within the otliergvithin S21-ideas ing, valves controlling the4 flow ofwater from said casing into said receiving'cl'ifiimber and from the latter into tliedi chamber, and conduits' 'connected outlets of the cylinder and terminating re, spectively in the upper portion of tl'ie ece ing chamber, and in the portion of' th casingbelow the said chain-bers.'

2Q. An internal combustion pressure 'ump comprising a cylinder having' at'lits' opposite ends, respectively, an inlet-and anv eutletmfr gaseous fluid, a piston having reciprocating movement iii-said cylinder, means it? establish c oinn'iiinicati on bet-Ween the, po oi the cylinder at oppositesid ton by tlie .lexplosion`Y fluid A p portions, mei ns forignitingja'c ""i-rige,` i1 ei;-

t'ja d eriiiinatc point in the movement ott-he an upright casing h'avinga@ discharfT ingr in its upperportion andaninletv at its lower. end, a receiving chamber and a discharge .chamber 'placed Aone -vvitl 2Q the other, loosely suspended within, said casing, valves' controlling the fllovv lof Water fr'oin" said (raising iii-to said'receivingchainber and from t e latter into the' discharge chamber,

and a conduit connecting tlietnitlet o f'hthe.

cylinder with the receiving chamber.

23. An internal vcombustion pressure' pump comprising, an upright cylinder Hav,- y

ing at its upper end angjiii'let"iio'r'easeous fluid, and at its lower 9nd oiitletpfovrthe same, a pistonhav-ing wreciprocat'inglmovement in said `cylinder and gadaptedto? kby gravity, meanstoestablish coinmunicatioii'between the portions ofifthe cylindervat opposite sides ofthe pistonby the explosion of fluid in the uppe'rgportion Q Lth'isaine, means for igniting'a,l charge.. ofv explosive gases in the said upper portionetwainter` c lininatepoiiit in the movement of the piston,

a mantle forming a vvater jacketaround' Ysaid cylinder and havinganoutlet, it'casin'g-con-- neeted at the lower end of sa-id'mantleand liavingn water-inlet at itslovver end,a 're reiving chamber and a, discharge-'clii- Iber placed one within'the other, Withiiif-said 'casing', selves controlling fthe-'flow fof gvater from said casing into-said recclfvinghamber a ill-Sfhi'ge conduit in communication with the Sald chamber, means for `igniting atI a determinate point 'in the movement of the piston in one direction, a charge of fuel .drawn into the cylinder through its said inlet by the said movement of the piston, and means adapted to be operated by explosion of said charge caused by said ignition, to establish communication between the nor-f lmally incommunicating parts of the cylin- -der at opposite sides of the piston, whereby the gasesdeveloped by the said explosion are admitted to the said outlet. f

Q5. An internal combustion pressure pump`comprising a cylinder, a piston fitted for reeliprocation therein and provided with a p ort for'the connection of the portions ofthe cylinder at oo )osite sides thereof. saidA "cylinder having at one side of the piston, an inlet for gaseous fuel and side of the same, an outlet for es, achainber in communication with said outlet, and adapted to connect with a source of water- `supply. a discharge conduit in communication with the said chamber, means for igniting at. a determinate point in the movement. of the piston in one diieetion, a charge ol fuel drawn into the cylinder through its side inlet by theI said movement of the piston, and a Valve normally closing the port in the pistou and adapted to open the saine by explosion of said charge caused b v said tion, to establish eonunnnication between the parts of the c i'linder at oppizsite sides of the piston whereby the gases developed by the said explosion are admitted to the said outlet.

96.An internal combustion pressure pump comprieine,r a cylinder, a piston fitted for free reeiprocat-ion therein, said cylinder havingr at, one side of the piston an inlet for gaseous fuel and at the opposite side of the sante, an outlet for amies. a'chaiuber in einnmuuivation with said outlet and adapted to connect with a source of wa e upply, a diseharire-conduit in conununcaion with the .said chamber, means for iguitingf at a determinate point in tbe mo\;'c nent of the piston in one direction` a charge of fuel drawn into the cylinder through its said inlet by the said movement of the piston, and means von said piston adapted to be operated by explosion of saidfcharge caused by said ignition, to establish voommunication between or gases, a chamber inl aft the opposite the normally incomniunieatingr parts of the cylinder at opposite sides of the piston' whereby the gases de\'el nied b v the said eX- plosion are adnnttedto the said/outlet.

An internal combustion pressure pump comprising angupright cylinder. a dif- VAfrases, and the said piston having a port for the connection of the portions. ofthe cylinder at opposite sides thereof, :1 'hollow rod ofn the piston connecting with the outlet-prtion,of the cylinder for the discharge of 4eases therefrom at a point outside the cylinder, a check valve controlling the flow of through said rod, a chamber in coniinnnieation withsaid outlet and adapted to connect with a source of water-supply, a discharge-conduit in communication with the said chamber, means for igniting at a determinate point in the downward movement of the. piston. a charge of fuel drawn into the cylinder throughl its said inlet by the said movement of the piston, and a valve normallyv elofdng the port in the piston and adapted to open the same by an explosion of said chart-ge caused by said ignition, to establish communication between the parts of the cylinder at opposite sides of the piston. wnereby the gases developed by said explosion are admitted to said outlet and the rel-peetire .side of the iiston.

38. )in internal com ustion pressure-pump comprising a cylinder, a differential piston fitted for free reciprocation therein, said cylinder having at one side of the piston, an

-inlet for gaseous fuel and at the opposite side of the same, an outlet for gases, and the said piston having a port for the connection of the portions of the cylinder at opposite sides thereof, a hollow rod on the piston'connecting with the outlet-portion of the cylinder for thediseharge of gases therefrom at a point outside the cylinder, a cheek valve controlling the flow of gases through said rod, a chamber in communication with said outlet and adapted to connect with a source of water-supply, a discharge-conduit in communication with the said chamber, means for igniting at a determinate point in the movement of the pist-on in one direction, a charge of fuel drawn into the cylinder through its said inlet by the said movement of' the piston, and a valve normally closing the port in the piston and adapted to open the saine by an explosion of said charge caused by said ignition, to establish communication between the parts of the cylinder at opposite sides of the piston, whereby the gases developed by said explosion are admitted to said outlet and the respective side of the piston.

fl (l 29. An internal combustion pressure pump comprising a cylinder, a piston fitted for reciprocation therein, and having a port to connect the portions of the cylinder at opposite sides thereof, said cylinder having at one side, of the piston, an inlet for gaseous f'uel, and a compression chamber, and at the opposite side of the same, an outlet for gases, a chamber in communication with said outlet and adapted to connect with a source of water-supply, a discharge-conduit in communication with the said chamber, means for igniting at a determinate point in the movement of the piston in one direction, a charge of f'uel draivn into the cylinder by the movement. of the piston in one direction, and a valve normally closing the port in the' piston and adapted to open the same by an eX- plosion of said charge caused by said ignition, to establish communication between the parts of the cylinder at opposite sides of the piston whereby the gases developed by said explosion are admitted to said outlet and the respective side of the piston, the said piston having a plunger adapted to enter said compression chamber at the end of its movement in the opposite direction for the formation ot a gaseous cushion.

30. An internal combustion pressure pump I comprising a c vlind5r, a piston fitted tor reciprocation therein and having a port to connect the portions of the cylinder' at opposite sides thereoi. said cylinder having at one sido of the piston, an inlet for gaseous fuel, a compression chamber, a valve to exhaust gases from the latter, and a valve to admit air into the same, and at the opposite side of the pistou, and outlet for gases, a chamber in communication with said outlet and adapted to connect with a source of watersupply, a, discharge conduit in coml'nunication with the said chamber, means for igniting at a determinate point in the movement of the piston 1n one direction, a charge of fuel drawn into the cylinder by the movement of the piston in one direction, and a valve normally closing the port in the piston and adapted to open the same b v a'n explosion of said charge caused by said ignition, to establish communication between the parts ofthe cylinder at opposite sides of the piston whereby the gases developed by said explosionare admitted to said outlet and the respective side of the piston, the said piston having a plunger adapted to enter said compression chamber at the end of its movement in the opposite direction for the formation of' a gaseous. cushion.

3l. n internal combustion pressure pump comprising an upright cylinder, a difieren tial lpiston fitted i'or free rcciprocation therein, and having ra port. for the connection of the portions` of the cylinder at opposite sides thereot. said cylinder having at one side-of the pistou, an inlet for gaseous i'uel.

and a compression chamber and at ,the opposite side of the same, an outlet for gases, a hollow rod on the iston connecting with the outlet-portion o the cylinder for the discharge of gases therefrom at a point outside the same, a check-valve controlling the tiow of gases through said rod, a chamber in communication with said outlet and adapted to connect with a source of water-supply, a discharge-conduit in communication With the said chamber, means for igniting at a determinate point in the downward movement of the piston, a charge of fuel drawn through its said inlet b the said movement of the piston, and a va ve normally closing the port in the piston and adapted to open the same by an explosion of said charge caused by said ignition, to establish communication between the parts of the cylinder at opposite sides of the piston whereby the gases developed by said explosion are admitted to said outlet and the respective side of the piston, the said piston having a plunger adapted to enter said compression chamber at. the end of its movement in the opposite direction for the formation of a gaseous cushion.

`An internal combustion pressure pump ccmprisingcylinder, a differential piston fitted for free reciprocation therein, and having a port for the connection of the portions of the cylinder at opposite sides thereof, said cylinder having at one side of the piston an inlet for gaseous fuel'and a compression chamber, and at the opposite side of the same, an outlet for gases, a hol w rod on the piston connecting with the outletportion of the cylinder for the discharge of gases therefrom at a point outside the same, a. check valve controlling the flow of gases through said rod, a chamber in communication with said outlet and adapted to' connect with a source of water-supply, a dischargeconduit in communication with the said chamber, means for `igniting at a determinate point in the movement'of the iston in one direction, a charge of fuel raivn through its said inlet by the said movement of the piston, and .a valve normal-ly closing the port in the piston and adapted to open the same by an explosion ot :said charge caused by said ignition, 'to establish communication ,between the parts of the cylinder at opposite sides of'thepiston whereby the gases developed by said explosion are ad.- mitted to\said outlet and the respective side of the piston, the said piston having a plunger adapted to enter said conipression-cham-A.

ber at the end of its movement in the. opposite direction for the formation 4of a gaseous cushion.l

33. Au internalcombustion pressure pump comprising a cylinder. a piston fitted ,for .t'rec reciproeation therein, said cylinder having at ont` side o piston, an inlet for gaseous fuel and at the opposite side of the same, an outlet for gases, a Water-chamber in communication with said outlet, and adapted for connection with a source of water supply, a discharge conduit in communication WithY the said chamber, means for igniting a charge of fuel drawn into the cylinder through its said inlet by the movement of the piston in one direction, at a determinate point in said movement, and means actuated by the explosion caused by said ignition for establishing communication between the parts of the cylinder at opposite sides of the piston, whereby to admit the gases developed by said explosion to the said outlet and to the respective side of the piston.

34. An internal combustion pressure pump comprising a cylinder, a piston fitted for free reciprocation therein, said cylinder having at one side of said piston an inlet for gaseous fuel and at the opposite side of the same, an outlet for gases, a Water chamber in communication with said outlet and adapted for connection With a source of Water-supply, a discharge conduit connected with said chamber, means for igniting a charge of fuel drawn into the cylinder through its said inlet by the movement of the piston in one direction, at a determinate point in said movement, means actuated by the explosion caused by said ignition for establishing communication between the parts of the cylinder at opposite sides of the piston, whereby to admit the gases developed by said explosion to the said outlet and to the respective side of the piston, and means for the exhaust of gases from the outlet part of the cylinder during movement of the piston in the opposite direction.

35. An internal combustion pressure pump comprising a cylinder, a piston fitted for free reciprocation therein, said cylinder having at one side of said piston an inlet for gaseous fuel and at the opposite side of the same, an outlet for gases, a water chamber in communication with said outlet and adapted for connection with a source of water-supply, a discharge conduit connected with said chamber, means for igniting a charge of fuel drawn into the cylinder through its said inlet by the movement of the piston in one direction, at a determinate point in said movement, means actuated by the explosion caused by said ignition for establishing connnunication between the parts of the cylinder at opposite sides of the piston, whereby to admit the gases developed by said cvplosion to the said outlet and to the respective side of the piston, means for the exhaust of gases from the outlet part of the cylinder during movement of the piston in the opposite direction, and means for the discharge of gases compressed during the same movement of the piston in the other part of the cylinder.

In testimony whereof I have affixed my signature in presence of two witnesses.

RANSOM Y. BOVEE. Witnesses:

G, J. RoLLANmzfr, L. RnoADEs.