US1860279A - Pump - Google Patents

Description

VMay 24, 1932. A, L FAWCETT 1,860,279

l PUMP Filed May 20, 1931 2 Sheets-Sheet l 45 Figure 3 isa cross section on the line 3- when resting thereon. o .t

50 ofv Figure 1.

Patented May 24,1932 j' 1,860,279 j* UNETEEL ST PATENT QFFICE, AnTnURf'L. FAW'CETTQ'AFUMVILLEKTEXS t, f. i Purim p j j v `Appnea'ion' meanay'ao, resi." senat No; 538,556. y

j My invention relates to certain new and Figure Gisa perspective viewfof the-valve useful improvements in pumps for water and cagen and its back check v alve`, l .l Y j oil wells and it particularly has `for Vits 010-. Inthe drawings,1nwh1ch'l1ke numeralsot ject to provide a pump in which the weight reference indicate like parts 1n all lof the 1 l of the plungervrod and its piston are taken igures, the outer barrel of the pump. 1s shown 5,; advantageof to raise the water or oil from ascomposed of sections l-l'and 41 coupled the well., i L

Heretotore,` pumps have been provided latter` being a reducing coupling. V i whereby on the upstroke of the plunger rod t 'A bushing 3 is secured withintherlfower and its piston the water is lifted while on `end of the outer barrel by suit-able means4gp the down stroke the water chamber of the The bushing 3 is counterbored asat- 5 a-nd pump is recharged.` My invention has Jforan has the entrance to the -counterbore bevelled object to reversethis order 'and to charge as: at 6 so that in fitting the innerbarrel 9 the pump chamber on .the upstroke of the it will conveniently slide into-place` in thev plunger and to force the waterto the surcounterbore. 5.

face on the downward stroke of the plunger The counterbore 5 provides a shoulder 7y f to expel the water from the well. or seatfor the packing ring 8 that islocated Further, it is an object to provide a simbetween the shouldered end 100i the inner ple, inexpensive pump, the parts of which barrel 9 and the seat 7. `The weight of theY together by screw couplings2 andfftO,.f thia,`

2'0 may be economically manufactured and easibarrel 9 'on the packing 8 serves, to efect a 70 Y l ly assembled, and to providea-structure in water-tight joint. The b'arrell9, is fittedfinto which those parts subject to wear or requiring the V*bushing 3 ywith a snug t. j 'j replacement. from time to time :may readily Held by retaining yfriction within the lower and conveniently be removed t and replaced. end of the inner barrel 9. 4is a valve cage and 2 5 Other objects will in part be obvious and valve'funitcomposed of an upper ring 12 75 -in part be pointed out hereinafter. bored and taped centrally as atl?) and a base To the attainment vof Vthe `aforesaid 'ob-V ring 14 connected with the upper ring 12 byjects and ends, the invention still further re'-A `vertealposts l11'. The ring .14 has-an outer sides in the novel details of construction, corn- .annular groove in which is located a Suitable 3 0 bination and arrangement offparts, allY of packing 15 that assists-in feting a wafer- 8o which will be irst fully described in the folf tight joint between the base 14 of the valve lowing detailed description, thenbe particu- @agg and the. inner bam-e119; c Yg 1 larly pointed out in the appended claims, refe 'j The base 14 ofthe valveicage is internally erence being had to the accompanying drawthreaded at 16l and receives'a tubular valve ings, in wh1C11- l. l seat member 17, thelatter having notches Figures 1 and 1a when joined at the dot 18 for the reoeptionrof a suitable tool kby and dash lines A'-B and read together conmeans kof which it may bescrewed into andV stitute a longitudinal section ofthe invention out Ofplace as desire 't y showing the plunger. gOiIlg down, the ar The Jfree valve 19 movesup and down vbe- 40 rows indicating the direction of flow of the tween the base ring 14and the. top ring 12 water or oil as the case may be. and is guided by the uprights 11j. The valve Figures 2 and 2a when joined at the dot 19 is of the spool typeand has aldiskwasher and dash line C-'D and` read together are '20 secured by a cap screw 21 to eifect a tight similar views with the plunger going up. seal with the tubular valve seat member -17 of Figure 1. Y l D Figure 4 is across sectionV on the line 4-4 the valvev cage is providedV with portslf22 to Y f of Figure 1. Y. effect communication from the insidejo'f the Figure 5 is across section on thelinei-A- barrel 9 tol the spacefbetween the barrels,l 9 06 The inner barrel`9 preferably justabove i v Y m11 @ha waterrbeinggfprcced.frome@ e. l

barrel 9lwill pasjsthroughy these ports 22 into thev space between the inner and outer barrels and upwardly as in Figure l. Y Y Y The Vupper end of the innerbarrel'Q is-in-l ternally threaded as at 23 toreceive a bushindicated by arrows ing 24:'th'at`is boredtoV serve asa bearingl forthe'plun'ger rod 25, the latterhav'inga Ypiston A26 provided with suitable packing rings'27, thefpiston fitting theinner barrel 9.

Secured within the upper end of Vthe sec'-YV tion l of the outer barrelvi's an upper bushing 28,V the lower partfof which lis provided with 1b. lugs 29 that extend from( the innen-barrel `9J 29are'provided with passages 'or `ports 30 thatregisterrwith similar Lports SEZ/in the outerbarrelfand ports 31 nthe inner barrel. The Yinner barrel is also provided `with-'an tothe outer barrel section l vand theselugs outer annular groove 42 .registering 'with the ports 3l so that shouldtlie inner barrelturn ai'idithro'wthe ports 3l and 30 outof alignnieiv 1t,`it`,willl not effect the functions of these aparts.'

The upper bushingQS atV its upper endis provided with a valve seat ring 33 *whichV bridges the space between the inner and outer barrels This 'ring 33 is provided with liquidrpasses 34j and a conical valveseat 35` Y through which .passes the water is expelled 'A toward tlietop ofthe wellwhenthe valve 3G is forced yoff'the seat 35.v` The valvey s 'iii Athe nature of a sleeve that slides up `and down on the inner barrel'9 and has VguideV lugs on its outer face and a conical valve seat portion 38 yto cooperate `with the .valve seat 3 5" l Y Therplungeirod'25 is preferably made in f y e sections screweconnected togetherras at139and 4A,Y the screwl end BQhe'ing of a sizey and threaded to nt the threadsV `ofthe Vopening y13 in thevalve cageso that when it is desired'to remove lthe valve cage after pulling y the plunger rod out.the plunger rodfniay be reversed and screwedinto the'valve cage 4'and the valve cage pulled out by usingthe plunger rod. c 'g Y* 'It will beseen thatv the section l ofthe d loutervv barrelextends lonly' afsho'rt distancel Yabove'jthe top of the inner barrelr)r and there.- it is connected with the extension Ypipe sec-V .tioii'jlbyjthe reducingjoint 40; p The bushingi28'is held in place inthe outer barrel `bylsuitable setscrews 43 as shown.

So faras described the foperati'on lofV the Y invention isl as follows:

When the Yplunger* rod is reciprocated vby any suitable powerV mechanism (not` shown) on the upstroke ofthe rod water will be drawn into the inner-barrel) through the bottom opening ofthe barrels l and Qcausing VVtheva'lve 19 tofunseat.. VV'ater will Vnot be is Y'withdrawn from the space between the barfrels back 'throughV` the openings 22because of "zkftlie fact thatfth'e valve 36 "remains seatedto close the out-passesfl. "Itgs'liould jbe under- VpistonQG and the bushing-24;

stood that when the pump' is immersed in the water or other liquid in thewell, the fluid `will enter the'ba-rrel 9 abovethe piston 261 through the openings SQ-BO-Blrand be eX- pelled through such openings on the upstroke of the plunger rod 25.' Y Y 'On the down stroke of the plunger-rod the valve 19 will Vimmediately seat and Vvclose o the escape of fluid from the pump through the bottom openings of the inner and outer barrels, thus vforciiig'th'e fluid to pass through the openings 22 `into the space'between the barrels and upwardly through the passest,

`raising the valvefroin the seat 35 and pass-Y ing upwardly to the top of the well. At the sainetinie the "fluid willfflow into the innerk barrel l9 above the piston 26'throughtheports ation and advantages of iny invention will 'be clear to thoseskilledl inthe art' to which it relates. l Y g u f Y What I claim is:

by said bushings,v breather ports velfectingl.v Iny a pump,` an outer' casing, uppeiand "lower bushings secured to and in said casing,

an inner casing spaced from'said'outer casing 100 communication between said inner casing and I the exterior ofV` saidk outer casing acent .said upper'bushing, said innercasing havving ports'adj acent said flower bushing-to ef-V fleet communication between theV inside of Vsaid inner' casing and the y'spacelbetween said A inner and outer caSingS, 'a valve cage ywith a vvalvek'located in saidxinner ycasing adjacent its lower end, said upper bushing having VaV ring vwith a valve seat 'and liquid passes eflow and above the' ring, la valve slidable on -said innerwcas'ing and gravitatingl to engagey said ring valves seat to close'said passes, a

`bushing secured in theupperY end `of said inner casing,l, yand ing apiston within saidinnercasing. i Y '2. In a puinp` an outer` cylindfical barrel composed of pipe-sections coupled together and extending from thef-top of the well into the liquid within the well, abushing .in each end of the lowerpipe sectionptlielower bush- Y ing having a eounterbore and seat,`r an innerY ,barrel passing through the 1 upper'bushing f c. and having its lower en'd located within saidg counterbore and on saidse'at, saidfinnerjba'r#V iel having r-a snugV fit 'in Lsaid ybushing,4 `inea-ns sealing the Ypassage `of water between said 1 lvrio -fecting communication betweenV the space be# A 3.- plunger .rod passing Athrough said last lnamed bushing and carryrecaer bushing and saidinner barrel, a back check valve unit carried in the lower part of said said upper bushing having liquid passes from the space between said barrels below said upper bushing to the space between the saine above the said upper bushing, and a valve slidable on said inner barrel for closing said Y passes.

3. In a pump, an outer cylindrical barrel composed of pipe sections coupled togetherand extending froin the top of the well into the liquid Within the well, afbushing in each end ofthe lower pipe'section7 the lower bushing having a counterboreand seat, an inner barrel passing through the upper bushing and having its lower end located within said counterbore and on said seat, said inner barrel having a snug t in said bushing, means sealing the passage of water between said bushing and said inner barrel, a back check valve unit carried in the lower part of said inner barrel and a bushing secured in the upper end of said inner barrel, a plunger rod passing through said upper bushing and ca'rrying a piston within said inner barrel, ducts from the inside of said inner barrel to the outside of said outer barrel and located adjacent said upper bushing, ports through said inner barrel adjacent said valve unit, said upper bushing having liquid passes from the space between said barrels below said upper bushing to the space between the saine above the said upper bushing, and a valve slidable onV said inner barrel for closing said passes, said upperbushing having a conical valve seat and said slidable valve having a conicalvalve seat port-ion cooperating with the valve seat of said upper bushing. f 7 4. In a pump, an outer cylindrical barre composed of pipe sectionscoupled together and extending from the top of tliewell into the liquid within the well, a bushing in each valve unit carried in thelower part of said inner barrel and a bushing secured in the upper end of said inner barrel, a plunger rod passingthrough said upper bushing and carrying a piston within said inner barrel,V

ducts from the inside of said innerV barrel to the outside of said outer barrel andlocated adjacentsaid upper bushingfports 4through said 'inner barrel adjacent said valve unit,

said upper-bushing yhaving liquid passes from the space between said barrels below saidu'pl,

perbushing to theV spacebetween'fthe saine above the saidupperbushing, `and avalve slidable on said inner barrel for closing said passes, said lower bushing having a bevelled end leading toits counterbore. a i' v5. In a pump, an outer cylindrical barrel composed of pipe sections coupled together and'extendng from the top of the well into thel liquid within the well, a bushing in each end ofthe lower pipe section, the lowerbush- L ing having a counterbore and'seat, anv inner f' barrel passingV through 4the upperbushing and having'its lower end locatedA within said counterbore and on said seat, said inner lbarrel having a snug iit in said bushing, 'means sealingV the passage ot'water between-said bushing and said inner barrel, aback check valve unit carried in the lower part of said i .1'

inner barrel .and a bushing secured in the upper lend of said inner barrel, aplunger v rod passing' through said upper bushing and if carrying a piston within said inner barrel,

ducts from the inside of said inner barrel to the outside of said outer barrel-and located adjacent-said upper bushing, ports through said inner barrel adjacent said valve unit,

said upper bushing having liquid passes yroin the space betweensaid barrelsbelow said up- @p'er bushing to the space between the same above thesaid upper bushing, and a valve slidable on said inner barrel for closing said the valve kseat of said lupper bushing, said lower bushing having a bevelled end leadingto its counterbore.

6. In a pump, anouter cylindrical barrel composed of pipe sectionsjcoupled together and extendingfroin the top of the well into the liquid within the well, a' bushing in each j end of the lower pipe se'ction,`the lowerv bushing having a counte'rbore and seat, an inner barrel passing through the upper Vbushing and having its lower Vend located within said counterbore and on saidseat, said inner barrel having a snug tit in said bushing, means sealino the assafre of water between said bushing and said inner barrel, a back check` Vvalve unit carried in the lower part of said` inner barrel and a bushing secured inthe upf jacent said upper bushing, portsgtli'rough said inner Vbarrel adjacent said .valve unit,

said upper bushing having liquid passes roin' V` 'i the space between said barrels belowV 'saidlup j i per bushing tothe vspace between lthe vsaine 'i above v the ysaid Vupper bushing,A vand a valve slidableon said inner barrel for'closing said passes,rsad back cheek Valveunit comprising a cage having a base part ted intosaid nner barrel with retaining fretim,y and` a valve in ksaid gage, saidlast named Valvehaving a, packing disk, and a seat ring threaded 'into the baselpart of said @argento cooperate with said disk. *n .1 VARTHUR L. ILLXVVCE'LUILY soik Q

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