US1167047A - Pump. - Google Patents

Description

M. T. CHAPMAN.

PUMP.

APPucATmN FILED FEB. 19,. 1914.

2 SHEETS- SHEET Patented J 113%.

M. T. .CHAPMAN l PUMPl vAFPLICITIODI FILED FEB.19. 1914.

Patened Jan; 4, 1916,

g Simms-SHEET 2.

I?? Sq/z 502%' 1,4 un L V Y d y MATTHEW T. CHAPMAN, F AURORA,iLL1NoIs,'-AssrGNoR To WORKS, 0F AURORA. ILLINOIS, A CORE-RATION 0F ILLIN'QIS.

PUMP.

Specication ofi-Letters Patent. y,

Application med February 19,1914.l seriaiNo. 816,69?. l'

To all whom t may concern:

Be it known that I, MATTHEW T.. CHA1 MAN, a Acitizen ofthe United States, and a resident of Aurora, in the county of Kane and State of Illinois,have invented certain new andl useful Improvements in Pumps, of which the following is a specification, referen'ce being had to the accompanying draw-v ings.

My. invention relatesto pumps, and particularly t'othat class of pumps involvlng taining a large amount of sand or grit, the solid particles pumped are thrown so forci- CID the .use of a pipe 'or casing with a plurality of runners or .propellers located thereinI at intervals throughout its length, togethery Withmeans for rotating such propellers, re liance being placed upon the lifting powerv of the propellers rather than upon the centrifugalaction of such propellers.

In the use of centrifugal pumps drivenat" very high speeds for 'pumping water conbly into contact with the pump casings that the metal is subject to abnormal wear im mediatelylabove the runners, making necessary special reinforcement at those points.

v In the use of a propeller pump of the type 4referred to as distinguished from the centrifugal pump, the vwater isnot thrown 4so strongly outward, with the result that the life of the parts is 'very materially prolonged.

It is one of the objects of my invention to provide an improved form of runner or propeller, by the `use of which the effect of the dcentrifugal force in throwing the sand and grit against the casing'of the pumpshall be minimized.

The production of an efficient durable pump of the type referred to is of very considerable importance, for the reason that a greater quantity of water can be raised with such a pump thanv can be raised by the use' of any other form of pump yet developed capable of being inserted in a .small boite.

. Pumps of the type referred to can be made to operate'eifectively ina bored well four inches in diameter or probably less. On the Aother hand, it has,4 not been found commercially practicablek to use a centrifugal pump adapted to,oper'a te in a .bore of less vthan ten, twelve,.orfourteen inches diameter. .Inasmuchga's therotar-y .pump of the type referred to, ismore cheaply produced than the form 'of reciprocating pump operating a .great length of pump rods for vIt is another object i'of-Iiiyi'lnyen showing two of thev runners', o

g .a central vvertical section, through raising water fromg'reatdle seen that this 'improved -f a very well-recognlze of the pump casing or ywelll:tubeinfiyhich it` works, and for this `reason -ity has beenl deemed impractical "to carry "oil to the `jQiimp" 7G bearings from the outside of th'elpipe, my invention I have provided'ia'n efi`ecti,\`*e lubricating means by .whichfthefbearingsf throughout the length of the y'pump basing" can be ,properly lubricated 'b, means Af 75 heavy grease, oil, water, orlo l lubricant ,f, as desired, without in' anywa" 'detra'cting .from the ease'with which thefpuiilp. .canbef withdrawn. So' far as am aware," y'hi `vhas never been accomplishedheretofore It` is another object y'offniy .in'l improve pumps' of this type', in 'sund tails hereinafter pointedy out.,A l Thepreferred means .by whh. y

8.2107 complis'hed these 'objects;are,shown .1n fthe, 85 accompanying drawings and,arehereinafter,`I .y y 'specifically described. y,

That which I'believe to in thec'lai'ms. A In the drawings, .Figure iewlo /afl` 90 pump embodying my improvementsgLFig V2,' is a central verticalmsection thrughifappoIV-f tionl of the casing'of my.,in aproifced,.jpuinpm- @bellers-lmou'nted therein and the fpoition of tht-v1.9.5 pump between such runnerspflig; 3.`,.is` alr cross'se'cti'mtaken onilinef: of E-fg, 2;, Fig. 4 is a cross section taken-online of Fig; 2;. Fig. -5 is an enlarged Vdetails"SlflW;

.ing a Central vertical. SectoestheushTheof 10o ythe bearings of. the' pump-shaft;,Eiggifsl an enlarged details'lhowing one nd-offione't of the spring T-shapedfribvswfy jwhicfhextend., from one to another of the bearings'through7 out the length of the pumpgcasin are-ttm of my improvedv pump similaglto lthat shown ,l

' in Fig. 2, butV showing amodificationvthereoff;

andA Fig.y 8 is .a ,central`L` through .the working parts ...refusal #.Sectisng fig. is 105 1fA Spc a,A Section5 e110.

' Fig. 7.

lll'therein to close the pipe.

'.15 indicates a pulley mounted on .the

upper 'end of the pump shaft adapted to be driven vby a belt v 16 from any suitable Y 154 source of power. l

Inasmuch as the parts so far .described may be of any well-known description 'and form no part of my present invention' in and of themselves, it is believed to be unnecessar to'describe them further herein. 17 in icates the pump shaft upon which the `pulley 15 .is mountedat its upper end and vupon which a plurality of runners ory propellers 18 are mounted at suitable intervalsas desired throughout the length of the r pump casing 12 'below the pumping element 11. As will be readily. understood', the runners or propellers 18v serve to raise the.

' water to the upper endof the'pump casing j .12 where, inthe construction illustrated, thek water is acted upon by the centrifugal pumpu ing element 11 for thev purpose of further llifting the 'water for .use in a water works system of any desired type.l 1t will be un# derstood that in many installations of my improved pumpingl device, Ano centrifugal pumping element 11 lwill be required, and the presenceor absence of suchan element .is'entirely immaterialin the matter of the present invention.

' As best shown in Fig. 5, the pump shaft 17 is formed of short sections securedtogether by being screwed into the. ends of the hub 'portions of the runners'18. Both VAabove and below each `of the runners 18 the sha-ft 17 is lprovidedwith .bearings 19, which in the construction shownv are in they form of spiders. l As best shown in Fig'. 2,

- each' ofthe spiders '19 below one of the runners. 18 has secured to it two Tfshzaped bars 20, the lower ends .of which are slidably mounted in suitable slots in the spider 19 nextjbelow it.4 Each ofthe spidersQ just above the runners 18 is provided with two similar T-shapedbars 20 extending upward' therefrom, their upper ends being slidably *amounted in suitable slots in the spider next above it. 4,Each of the T-shaped bars or ribs 20 is preferably formed of spring material,

.having its central portion' bowed outward Slightly relative to the shaft, whereby the ribs are adapted to grip the well tube 2O I and'hold the bearings 19 against rotation therein, at the same timebeing adapted. to permit ofthe withdrawal of the bearings the bearing.

each of the hubs ofthe runners 18 is cored with the shaft 4whenever it isdesired to withdraw the pump for any reason.

r1`he ribs or bars 20 have a function in' addition to that of holding the bearings responding rotation of the water unless the water be held against rotation immediately adjacent to the runners. With the bars 20 extending into close proximity to the upper vends of the runners 18, the water is held against rotation as just above described and is caused to rise up the pipe 12 from one runner 18 to the next above it. As best vshown in Figs. 3 and 6, the ends of the bars 20 are curved outward in order to better intercept the rotary motion of the water.

As best shown in Fig. 5," each section of the shaft 17 is bored 'out at its center whereby oilv or other lubricant is adapted to 'be understood, the bearing faces of the parts 19 are to be. formed integral with the main portions'thereof, as illustrated, or are to be formed therein in any suitable manner, be.- ing formed of 4anysuitable material to adapt them for use with such lubricant as it is desired to use.

As best shown in Fig. 5, thelower end of each of the bearings 19 located adjacent to the upper ends of the runners 18 are cored out to receive packing, members 22 of felt or any other suitable material which serve to keep the sand and grit carried by the waterbeing pumped away from the face of Lilrewisethev lower. end of out to receive asimilar packing-member ,23 to 'keep the sand and grit out of the bearing'19 below the runner. As'shown in .this figure, the lower ends of the cored out recesses just described in connection with thebearings 19 and the hubs of the runners 18 are formed flaring whereby centrif# ugal force tends to throw outward any sand or grit which finds its way to the mouth of llO such rece'sses.- IQl'indicates a' plurality of pipes embracing the shaft 17 between each `of the adjacent runners 18, said pipes being screw-threaded at their ends for connection. with. said bearings.

In Figs. .7 and 8, which show a modiica` tion of the construction hereinbefore de are boredonly a short distance at eachend,

` an Oil port 25 being provided leading from l the central bore of said lshaft to the interior of the pipe sections 24a. By this means a larger supply of Oil or grease can be maintainedfor lubricating purposes andthe expense of boring the sections of pipe beyond the'end portions thereof is saved. In the construction shownin said Figs. 7 and 8,A I have illustrated an improved runner or propeller 26, the blades' of which are curved upward at their outer edges so' as. to turn the water upward and to decrease the centrifugal effect of such runners uponthe water and the sand and grit carried thereby In this yway the wear upon 'the pump casing is very materially lessened and the expense and difficult-y of maintaining the pump in good condition are correspondingly decreased; Y

lBy the use of my improvements, .a pump is provided which is capable of operating efiiciently in al Well of. a small bore for pumping therefrom from a great depth a very large amount of water. By reasono-f.

my improyed oiling system, the pump is capable of operating without undue wear .and

the life .of the pump is not undulylimited by reason of excessive wear Iin the'bearings.

`In the use of pumps of this ftypc, it is very frequently desiredfto drive the pump by an electric fm-stor. Asis well known,.in

many types of electric motor it is not feasi-v ble to attempt to vary the speed of rotation of the armature, it -being desirable tov run the motor at all times under load conditions at a' certain constant predetermined speed; In installing a pump of the type just described, it is very often not known'in ad'-l Y Vance just what the constant capacity of the well will prove to be, and itsometimes hap.r pens that the capacity of the pump at thef-14 predetermined desired speed.l of the motor is greater than the capacity of the well. In such a. case, inthe use of my improved pump as above-described, the prop'ellers or runners 18 and. 26 maybe removed from the line of shaft and other propellers or runners substituted therefor, the new. runnersl being of such a height .as to make the capacity 0f the f pump conform .to the 'capacity of the well at the predetermined "desired speedof the 'motori l j 'Byreason ofthe shaft and other working parts of the pump being made o f short sections secured together at ytheir ends', the pump is ablevery readily to adapt itself to;y an)7 slight irregularities in the bore'of the well. This feature is of considerable importance in -view vof its beingdiicult orl impossible to bore a wellabsolutely straight.

The adjustability of thebearings relative to each other in the line of pipe 12 is increased yvery materiallyby reason of the engagement ofthe T-bars 20.with the pipe at a point as any appropriate bearings may heused .desirevto secureby Letters Batent, is,--'.

1t-opposite sides of L11@V bearings mainder of the distance. a"

'- .ing :longitudinally extending openings communicate' at [opposite .sides-pf the bearingsv for Aconclueting the lubricant 'a shaft therein, "a plurality of rlu mounted on said`.s haft, bearingsffor said .Shaft-mou'nted 1.11"'Saidf Pipe ieaSingS tute in effect vasingle bearing structure,t

.will be understood that I do notl limit Vmyself to that particular. construction 'except as 75y herein-after specifically claimed, inasmuchV That which Iclai'm asmy inventiol ,a

l.' In a'pump, the coinbination of afpi .6, 80 a shaft therein, a plurality ofV runners mounted on said shaft at intervals 'there along adapted to rotatetherewith,` and a plurality of bearings between said 7runners for said shaft mounted in said pipe, lubricating passages .being provided through the casing surrounding the shaft .between the yrunners vand through that part of theshaftfpassing through the runners for' the purpose. ofv conducting lubricantvto the bearings.

2., In a pump, the combination of a pump casing for conducting water out of a Well, a shaft, pump runners mounted on' said shaft, bearings for said shaft, and a casingI surrounding the shaft for conductinglubricant to the shaft bearings, ythose parts of the shaft f passing through the bearings beingprovided with openings -therethrough communicating with the casing on the exterior of the shaft 3. In a pump, the combination of a pump,l casing for conducting'water out 4of a Awelha shaft, pump runners mounted on` said shaft, bearings for said shaft, andmeans for'conf. ducting lubricant tothe bearings, Acomprising a' casing for conducting the lubricantlabout the shaft forap'crtion of its length, and an opening or4 openings through*the..y shaft for conducting the vlubricant the i 4. In a pump, the combination ofv a pump casing for conductingu ater ou'tfpfa 'wellpga shaft, pump runners mounted "on, sai'dxshaft,.,-, bearings for said shaft, Iand,.niean s forlcoml; x ducting lubricant to the bearings, cgmprise `115 .openings Y through. the shaft at the bearings,,and-A casing about said, shaft with. -whichffsavid the remainder ofthe distance..Y

.5. -In a pump, the combination .of

rounding said shaft between said'ru'nners, and means for conducting a-'lubricant supply from .the casing above eachrunner to the casing below said runner',`lcmprsing a Alongitudinal passage -extendmgthrongh the 13a 'vals therealong adapted to' rotatetherewith, and a plurality of bars mounted on one of runner communicating with the interior of said'caslngs. ifi. In" a-.purnp,-the.combination of a pipe,

"ai shaftthe'rein. comprising aplurality of sections,a'plu'ralit of` runners mounted on said shaft atthe joints between said sections, bearlngsffor leach of,v said sectionsl of shaft `mounted in said. pipe, a 'casing surrounding,

cach'section4 of shaft 'between said bearings, and means forA conducting-'oil from one" of the bearings adjacentto each ofsaid rune ners to the., bearingv onthe .opposite 'side thereof, comprising, :longitudinal passagesthroughl theends 'ofsaid sectionsA of yshaft communicating ywith the interior of"' said leatin-gs.

7.-In a pump,the 'combination rifa. pip-e5; l `ashaft'therein'comprising 'a plurality of sections, fa 'plurality of runnersmounted on y:said shaft atthel joints betweensaid sections, bea-'rings lforf'eachof said sec-tions 'of f shaft mounted said pipe,- a casing.' surfrounding@each-".sectionj of shaft and `con- 'nelctedjtoy thefbearn'g's at` itsv ends, yielding means extending "'frou`1 one'to'the' other of the-bearings for each smftfsection mounted thereon? adapted to :heid said. ,bearings 8. Ina pump, the combination of 'a pipe,

a shaft therein, awpluralityl of bearings for said'shaft mounted in said'pipe, a plurality of runners :mounted on said shaftl at inter- -fais therealongadapted to'rotate therewith, 'f and a plurality of bars'e'xtending vfrom'one' to another of saidbearings adapted to engage the inner facelv of said pipe and to hoid` saidl bearings against rotation therein, said bars being also'adapted 4to resist the tend-l ency of the water to rotate inthe pipe due tothe 'action of the'ru'nners.,v

l 9. In av pump, the combination of a pipe, a shaft therein, a plurality of bearings for said shaft-mounted in said pipe, a 'plurality of runners mounted on said shaft at intersaid'bearings and engaging. another of said,

`.hearings adapted to engage the inner face of saidpipe and to hold saidl bearings against rotation therein, said b ars being also adapted to resist'the tendency of thev water to; rotate inthe pipe due to the action of 10. In' a. pump, the combination of a pipe,

to 'prevent Vsand or niais/,oar

a shaft therein, a plurality of :bearings for said shaft mounted in said pipe, a plurality of runnersimount'ed `on said shaft at intervals therealong adapted to rotate therewith, Aand a plurality of .bars formed of spring materialand bowed outwardbetween their ends mounted' on one ofsaid bearings and engaging another of said bearings adapted to'frictionally'engage 'the inner face of saidpipe and ,to hold said bearings againstrotation.`therein,sa:id bars being also adapted 'to resist the tendency lof the water to rotate ,in the pipe-due tothe action of the runners.

'l1. In a pump, the combination of a pipe, a shaft'therein, a plurality ofbearings for said shaft mounted in said pipe, a plurality of runners mountedon said shaft" at inter- '.yals therealong adapted to rotate therewith,

and a plurality ofangular bars extending from one to another of said bearingsl adapted to engage'the inner vface of said .pipe and to hold said bearings against rotation therein, said bars 4being also adapted toresistv the tendency of vthelwater't'o rotate `in the pipe due to the action ofthe runners.

l2. Ina pump, the combination of' a pipe, a shaft therein, aV pluralit of bearings for said shaft mounted in sai pipe, aplurality.

of runners mounted yon, saidshaft at intervals therealong adapted to rotate therewith,

and a: pluralityfof Tfbars extending with their head portions outermost from one to `another of lsaid bearings 'adapted to engage the inner face-of said pipe and to hold said bearings against rotation therein, said hars I being 'aiso adapted to resist the 'tendency of the water to rotate in the pipe due to thev action 'of-the runners, the. head portions of said T-shap'ed bars being curved outward at each end in order to furthrysounteract the whirling'l 'tendency of the water.

,13. In a pump, the combinationof a pipe, 4

a` shaft therein, a runner mounted von said shaft and adaptedto rotate therewith, and bearings for said shaft mounted in said pipe lone at each sideof said runner, 'the joint between eachof sald bearings andsaid runner comprising a-recess in' one of said mem'- bers into whlch the other 'member projects yinto contact with apacking therein, said recesses being flared outward at their ends whereby the rotation vof the vrunner tends through the medium of centrifugal force .grit from working into MATTHEW T. CHAPMAN. Witnesses:

JOHN B.' SPER'RY,

R. D. MAHAFFEY.

said joint.`

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