US1000021A

US1000021A - Pump.

Info

Publication number: US1000021A
Application number: US59750610A
Authority: US
Inventors: John Lee Latta
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-12-15
Filing date: 1910-12-15
Publication date: 1911-08-08
Anticipated expiration: 1928-08-08

Description

J. L. LATTA,

PUMP.

APPLICATION FILED DEC.15,1910.

Patented AugL 8, 191i,

3 SHEBTSvSHEET l.

LGOQOQT.

inventor;

Attorneys.

Witnesses J. L. LATTA.

PUMP.

APPLICATION IILED DEG.15,191U.

Patented Aug-v8, 1911.

3 SHEETS-SHEET 2.

. @ef/MMM Witnesses Attorneys.

J. L. LA'FA.l

UMP.

APPLIGATION FILED DBG.15,1910.

Eatented Aug, 8, 1911.

3 SHEETS-SHEET 3.

Attorneys.

JOHN LEE LATTA, OF HICKORY, NORTH CAROLINA.

PUMP.

i ,eeaoei Specification of Letters Patent.

Application filed December l5. 1910.

Patented Aug. 8, 1911. Serial No. 597,506.

To all 'whom it may concern:

Be it known that l, Joux L. lrvr'ra, a citizen of the United Statesr` residing at Hickory. in the county ot' Catawba and State of North Carolina, have invented a new and useful Pump, of which the following is a specification.

This invention relates to pumps, and more especially to those employing compressed air for elevating water or other liquid; and the objecty of the same is to produce certain improvements in my United States vPatent No. 947,327 and issued February 1. 1910.

To this end the invention cous sts in the details ot' construction described and claimed herein which differ from those set forth in said patent7 all as shown in the drawings wherein-e Figure 1 is a Vertical sectional view ot al sectional view at right angles thereto, partly in section. Fig. 3 an enlarged elevation of the upper portion of the pump with the easing of the auxiliary valve removed. Fig. 4' i's a section on the line 4 4 of Fig. Fig. 5 is a section on the line 5 5 of Fig. 4. Fig. 6 is an elevation of the inner wall of the auxiliary f'alve iasing, viewed from the line G-t in Fig. 5. Fig. 7 is a eentral hori-I zontal section through the auxiliary valve and its easing. Fig. S is a detail of the leather-capped valve therein. Fig. t) is an enlarged seetionaldetail through one ot the. trip valves.

The pump forming the subject matter of the present invention is designed more peeially for use in connection with Water pumping or ele "ating devices where compressed air is employed to alternately displace the water Yfrom a pair of tanks or eylA inders, and in the d awiugs there is shown a pair of tanks 5 and (3 each provided with a water inlet valve T openingunder the in tluenee o'l" lgravity or external pressure and closing' when the air is acting' to force the water from the chamber. llaeh tank or eylinder is provided with a discharge pipe 8 having` a Check valve 5) disposed within the same. Closing the, upper ends of the tanks 5 and t is a casting' 10 having a valve easing or eylinder 11 secured thereon, and eonnet-ted to a suitable souree ot eompressed air supply through the medium ot a pipe 12.

The main valve 13 is loosely mounted tor sliding' movement in the easing 11, and has its sides eut away into pockets 1i. at about the eenter ot its length7 which pockets are connected by a passage 140 euty across the. bottom ot' the valve, and whieh in the ret-iproeat'ion ot the valve alternately registers with air inlet ports 15 and 11S leading to thev adjacent water containingtanks and through which air is admitted to the interior of the tanks for the purpose of displacing, the water therein and discharging the same through the pipes ,8. Longitudinally beyond the inlet ports 15 and 16 are exhaust. portsv 1T and 18 through whieh the displaced air t'rom the interior of the tanks is alternately exhausted in this operation, and in the bottom of the main valve near its ends are formed outlet poekets 141 as best seen in Fig. which alternately connect said inletI ports 15 and 1G with the exhaust ports 17 and It? bored into the bottom of the fasing 1.1. so that the air from the interior ot' the't'anksl is alternately diseharged or eX- hausted as the main valve 3 travels back and forth. The ends ot' the main valve 13 have projeetions Q53 (preferably annular ribs) which bear against similarly shaped pieces of yieldable material 2") seated in recesses in the ends or heads 24 ot the easing, whereby the strokes ot' the valve are eushioi'led.

ln the. upper side of the. main valve at its center is formed an elongated pocket 147 as best seen in Fig', 1 (and whieheonnectls the. side pockets 1-1- as best seen in Fig. 2) and from the ends ot this elongated pocket `holes 148 extend to and open out through the ends ot the valve` The inner endsof these holes loosely reeeive stems 149 at the extremities ot a spool valve 150 mounted loosely in the pocket 147 whieh we may therefore calll the spool pocket, and whieh is slightly longeri than the spool valve so that thelatter has a little lost. motion longitudinally therein. One of said holes 14B may slide loosely over a guide rpd 151 'arried hy one of the heads 24- of the easing' 0 a; to prevent the valve E troin rotatingr in its plaee.

-'l`he auxiliary valve reeiproeatea rather looxel'v in a easing' 25 at. one side ot the nlain eaaine' 11 as liest seen in l"i; '2 'intl 5. and this auxiliary valve iti ifa olefiousl'v for the purpose of eontrolline' the position o'l" the niain valve. whereas the latter eontrols the inlet and exhaust t't,eoinpre. setl air with whieh the pumpingr iS doney 'The valveit'selt" is; provided near its' end# with annular grooves QS alternately ref fiatering' with portaI Q9 and El() whit-h lead to oppo;ite enda and through the heatlx 2-1 ol the niain valve ea-siner (and within the ring' ot yieldahle inaterial it einployetll. and midwayY hetween these grooves is a poeket QT in whieh is mounted the l'atherwup valve liest Seen in lfig'. 8. rVhiS` is in the shape ot a plugv 1R71 elosely fitting' Said poeket and horetl longitudinally with a fine hole 1911 whose inner end ia norniallv elosed h v a l\ather rup 1ST heldl in plaee luy a weak Spiral Spring 1\:` rest ing' on the hottoni of the poeket QT. lhe position ol' parts is sueh that' the fine hole registers with the port 30 when the other port 29 registers with one otl the grooves 2S. and viee-versa. as seen in Fie'. 'l`he ends ot' the auxiliary valve inay have proieetions 12.", engaging viehlahle inaterial llein the heads otl iteI easing, like the extrexnities'ot' the niain vvalve as ahove deserihed: and through the valve easing' (prefer: hlytluoneh its hottoin at the eenter thereof) extendsI a 1guide rod or pin 250 whose inner entl eue'aje'es a groove 21S in the hottoin of the. auxiliary valve to prevent the latter troni rotating within its 'aainfez ,\t either `'iile of said guide is an exhaust port .'t leadingr through the auxiliar) valve easing to the outer air. and these exhaust ports are #pareil so as to register with the `grooves 2S alternately in eolninunieation with the exhaust ports 29 and itt) leadiner 'from the ends of the main valve easing. liwtetl within eaeh tank ia r tloat 41 whose lever n `ar its pivot has a ret-ess 12 in whichis tilted a. vuleanit'e, disk lil adapted when the float risey `to elose against a l-eat to eonatitutin"r what l terln the trip valve." Then the float dest-ends the. paekingj disk 1S opens' a port. 37 which eoninnuiieates with a pipe 35 that rises throughout the length o1'y the tank and enters the easting 10. 'l`he latter ls eorerl with tineI passages 31 and $12 eonnnunieating' with the pipes 35 and leatling upward au liest Seen in Fie'. 2, and these paaaagges in turn eonununicate with similar passages lt) ansl'() in the auxiliary valve easing' (as hes( Seen in Figs. 5 and (il whieh latter eroeI eaeh other and open into the interior thereof as shown.

Tn operatio'` compressed air` entera the pipe 1Q in Fig'. 1, passes around the main valve to the point 110. down through the port 15 to the right hand tank 5 which 1S then tilletl with water. andtlrives the latter out through the (lieharee S and cheek valve .t. ll'hen the water level therein tallS helow the Iloat -tl the trip valve (see Fig'. 9) is opened and a partl oi" the eoniprtwaetl air ltowa1 up the` pipe 35 and through the tine passagea 32 and 320 and into the auxiliary valve asing' at li't'svlegtt end. The auxiliary valve is h v this-'air presiure driven to the right to the poeition #hown in Fig', 1i (the air :forward ot' it eseapinu' slowly around it hy reason ot its loosenessl. and this throws the le'tt hand port t'roni the inain valve easing into eonnnuniration with the exhaust port #.16 in the auxiliary valve. easing as there shown. The rel xase ot' presfure within the left end. ot' the niain valve 'rising' in the poaition lhown in Fie'. .1. antl hevontl the le'tt head ot' the spool valve ltlnperinita the, latter to niove to the lett. as ity will under the torce ot the inrush ol' t-olnpressetl air through pipe 12. thevehy uin'overing' the right hand hole 119 through whieh passes tfoinpreSSed air to the right end ot' the niain valve 13, and the latter is therelw foreihly driven to the lett liv the. power ot the tronipreed air @etere it ran enter either o1. the tanks. ln the moveinents ot' the inain valve to the lett' the. air beyond 'it is expelled through the exhaust as explained. until the rih Q3 Seata againat the .vieldahle material 22. The shitting of the inain valve ohviou.--;l v switehea the. inlet ot.' eonipressetl air tothe other tank and the operation is repeated. the water rises in the othertank. it litt. eloses the trip valve lahown in hie). and the air trapped ahove it is then expelled through the port It? in th eastinen 10 and out'V through the exhaust port 17 in the easingY ot' the niain valve.

tature peeuliar to 'the preSent invention is that in the niovenienta ot the aux-- iliary valvt.` itsl eup valve (see Fig. S) comes alternately under the ports 'Btl and 30. and the pressure of the air at the corresponding end o1 the nlain valve. easingT passes through the tine hole in the plug' and Seeks t0 escape. The plug' heine' larger in diameter than the port whieh it covers7 Sullieient' pressure is aeennxulated heneath the plug' to 'foren it tightly toward said port. and thereby the eseape ot the compressed air is prevented and prat-tie: ll all ol itl is delivered to the tank and elnplovetl to expel the water therefrom.

what is elainletl a5' new is:

'1. A deviee of the elasal tleserihed including' a plurality ot upright.v litpiid-eontaining tanks eaih ha viner inlet'. and diseharg'e y'alves. a niain valve easing eonneeted with a source o1n|n'e.-:. e l air y uppl v. the easing' ha ving inlety porteI leading' respectively t0`said tank` and also having outlet ports adjacent there-,1,y passage at that time, a cup valve over the to, and a main valve reciprocating in said 'asing and adapted to alternately switch the compressed an' into one4 tank and open the outlet from the other; an auxiliary valvev asmg having two exhaust ports and passages through the heads of the main valve casing, an auxiliary valve reciprocating in said casing and having grooves spaced so as to alternately switch one of said passages into communication with one of said outlets and a pocket between said grooves, a spring supported plug loose in said pocket and having a finevhole adapted to register with the other passage at that time, a cup valve over the lower end ot' said hole, and means for reciprocating said auxiliary valve by the exhaustot air alternately from said tanks.

2. A device ofthe class described including a pluralitypfliquid-containing tanks, a main valve casing, a main valve reciprocatingin said casing and adapted to alternately switch the inlet of compressed air into one tank and open the outlet trom the other; an auX- iliary valve casing, an auxiliary valve reciprocating in said casing and having grooves spaced so as to `alternately switch one of said passages intoA communication with one of said oiitlets, and a pocket between said grooves, a spring supported plug loose in said pocket and having a fine hole adapted to register with the other passage at that time, a cup valve over the lower end of 'said hole; pipes depending from said 'casing into .said tanks, the casing being cored with fine passages from the upper ends of the pipes through the auxiliary valve casing to the respectively opposite ends thereof, and means for yadmitting air to the lower ends of said pipes as the water in the' tanks descends.

3. 'A device of the class described including a plurality of upright liquid-containing tanks each having inlet and discharge valves, a castingclosing their upper ends, a main valve casing on the casting connected with a source of compressed air supply, the casing and casting having cored inlet ports leading respectively to said tanks and also having outlet ports adjacent thereto, and a, main ,/valve reciprocating in said casing and having pockets spaced so as to alternately switch the inlet of compressed air into one tank and open the outlet from the other; an auxiliary valve casing having two exhaust ports and passages cored through its wall and through the heads'of the main valve casing, an auxiliary valve reciprocating in said casing and having grooves spaced so as to alternately switch one of said passages into communication with one of said outlets and a 'pocket between said grooves, a spring supypoi-telly\lug loose in said pocket and having a tine vtile adapted to register with the other l l i l lower end ol said hole, and means for reciprocating said auxiliary valve b v the exhaust of air alternately t'rom said tanks.

et. device of the class described including a plurality of upright liquitl-containing tanks each having inlet and discharge valves, a casting closing their upper ends, a main valve casing on the lasting connected with a source otI compressed air supply, the casing and casting having cored inlet ports leadingl respectively to said tanks and also having outlet ports adjacent thereto, and a main valve reciprocating in said casing and having pockets spaced so as to alternately switch the inlet ol compressed air into one tank and `open the outlet from the other; an auxiliary valve casing having two exhaust ports and passages cored through its wall and through the heads of the main valve casing, an auxiliary valve reciprocating in said casing and having grooves spaced so as to alternately switch one of said passages into communication with one ot said outlets, and a pocket between said grooves, a spring supported plug'loose in said pocket and having a tine hole adapted to register with the other passage at that time, a cup valve over the lower end of said hole; pipes depending from said casting into said tanks, the casting being cored with tine passages from the upper ends ofthe pipes through the auxiliary valve casing to the respectively opposite ends thereoffzind means for admitting air to thelower .ends of said pipes as the water in the tanks descends. t

A devieeofthe class described including a' plurality of upright liquid-containing tanks each havinginlet and discharge valves,` a' casting closing their upper ends, a. main valve casing on the casting connectml with a source of compressed air supply, the casing and casting havinfr cored inlet ports leading respectively to said tanksI and also having outlet portsadjacentthcreto, and a main valve rtariprmfating in said casing and having pockets spaced so as to alternately switch the inlet of compressed ai r intoonevtank and open the outlet from the other; an aux iliary valve casing having two exhaust ports and passages cored through its wall and through Ithe heads of the main valve casing, an auxiliary valve. rcciprmrating in said casing and having grooves spaced so as to alternately switch one of said passages into communication with one of said outletsv` and a pocket between said grooves, a spring supported plug loose in said pocket and having a tine hole adapted to register with the other passage'at thattimfe, a cup valve overthe lower' end of saidhole; pipes depending from said casting into said tanks, the easting being cored with fine passages from the upper ends of the pipes through the auxilian-y vulve casing io (he respectively oppo- In testimony that I Claim the foregoing site @nds thereof, :md a trip vulve nt the 1 as my own, I have hereto nfxed my Sgnalower und of @mh pipo comprising' 1 seul, n I ture in the. presence of two Witnesses. pirotml lvwr fnl-[ving :l packing disk adnpi- JOHN LEE LATTA.

5 vgl (0 dos@ against 1110 scat, und n H0211 \Vii'11esses:

wlwrr-Irr tlw vulve is openvd by the descent I". A. HENDERSON, 0i' :iw mm: N. W. CLARK.