US390332A - Drews - Google Patents

Description

(No Modl.) ZSheets-Sheet 1.

W. D.A ANDREWS.

' PUMP.

18o/898,882. i Patented 008. 2*, 1888.

S WWE@ UNITED. STATES'PATENT. ()F1Ic3t o WILLIAM DRAIVER ANDREWS, OF BROOK HAV EN, NEW YORK.

PUM P.

SPECIFICATION forming part of Letters Patient No. 390,332, dated October 2, 1888.

" Application mea Maren 2, leso. serial No. 193,762. (No model.)

T all whom 15mn-y concernturbing the other half of the casing, therotary Beit known that I, WILLIAM DRAPER AN- wheel and itsdriving mechanism, or 'the suc- DREWS, ofthe town of Brookhaven, county 0f tion or discharge pipes. v Sui'olk, in the State 'of'New York,havc in- `The invention consists inno-vel combina- 55 vented a new and useful Improvement in tions of parts and features of construction Pumps, ol `which the following is a specificahereinafter described, and pointed out in the tion. i claims, whereby the aforesaid and other ad rlhislinvcnlion relates to what I term an vantages'are attalned.'

impetus centrifugai "pump, in which the In the accompanying drawings, Figure lis 6c', lo water lis moved by the rotary motion imparted' a vertical section of apump embodying. my

to it through a rotary wheel provided with invention in a plane transverse to the pumpblades which projectinto, butdo nott tightly ,shaft. Fig'. 2 is avertical section. in :a plane in, a circumferentialannular channel inthe parallel with theshaft. Fig.`3 isa side elevapump-casing, with which the suction and dis-` tion ofthe pump, aud'Fig: 4f .isa vsimilar side 65 chargepipes-Communicate L An example of'a elevation'showing -tliecasingsupportedina pumpnuponl, thisprincipleis shownin `my different'position." l f 1 granted December 20, 1820.15 dependingparhsjinall) Importan p objectsfof Iny' inventionare-fio;1'.;V A designatesfthefw zoprovide' a ynovel `eoinbination of vthe casing and is sec dffast u wheelof such a pump as willenable compara tivelylargv d esfjof soi-'id material to'fpa'ss with `thewa 1 --fthroughjthepump' Without chokingv th epump "or-*crampiugfpthe rotaryf wheel; also-,1` tojprov'ideagnovel .const1"ction" t of' Wheetwhiehis very Iightanfdjso.formedand at 1 c olilbinedwithy the ccasi'ngas tp'revent-di t* or'grit fronifgettingfinto the. ea'ringsiof t wheel-shaft andcuttingand'wearing said bear-1 suc` nddischa'r-gefpipes'uiay 3o ings and shaft; also, tosc construct ,thejcasing?- andthe Vwohalves orsectionsar Mr nied with Y that the two halves or` sections of whichit'isfprojeoting lju'gs'fo'rl bearers 5w/hiel; restupon composed may be cast Vfroma single pattern and areltobebolted tofeetorlegsdi, whereby the also, to so construct and combine the pump.- "pumpis sl 1`pported;` V Thecasfiu'gis constructed casing with its feetor standards that it 'may be with an .annular channel or water-way, D", U5 set in any desired position with its suction with which thelsuction and discharge nozzles l land discharge nozzles presented vin any de- QD? D3 eommunieatafand betweenthetwonoz-v sil-ed direction, and to provide for the suctionzles'is an abutment, D v This abutment may Aanddischarge of water, either vertically or, consistof a hollow 'casting formedjintegral lorizontally'when the jpump is so supported with the sections DD'. :ByV bhriirll 0f 9 0 4o that its suction and discharge nozzles? are. 'the wheel-A in thedirectionlofthearrowsin 'equally above and below a horizontal plane JEig,y 1 the' water' entering` from VAthe suction- Vintersecting the axisof the pump, Orrin other"` nozzle D2 is causedto take the same direction, desired directions whenthe pump is otherwise las alsoindicated by arrowsginv said-figurefand arranged; also, to provideasimple and easilyis discharged at the nozzle DBV j 95 ,i 5 adjustable packingf. hereby dirtorgrit is .The two halves orfsectiousD D' .'ofthle'cas";. 1

- prieventefd from reachingthe shaftand "bearq,.jin'g.have-hubsjor vbosses 'e at' thecentenand. l

j provide for readily ings, vand wheibylleakage ofai'rorwatei` 'radiating therefromare s'tnf'engtheririg-'ribsdfl rth rougii f the "shaftbearings orbetween the AThe"h nbfo'r boss esis'bored out `to receiveaf V.headings andcse-hubis Vprevented;also,to bushing o sleeve`,f," which forms lone ofthe --Ioov removing one haif'or sec! "bearngs for theU- shaftl ahdfthehub or besa i' l :tion of the'oasing when-,desired without disl f eis'bored outto receive a follower or-bonnjet,1"

- ffwhich is connected with the casing by bolts v by a coupling,

g, and which has a long neck,f'l, forming a long bearing for the shaft B, and on the exterior of which is journaled the pulley C.- The pulley is loose on the follower or bonnetff2, and is connected with the end of the shaft B C', of any suitable construciion--such, `for example, as that shown in my Patent No. 156,523, granted November 3,1874. The belt may be led from any direction to the ,pulley C without interfering with the bearers di or the feet or legs d.

Between the sleeve or bushing f and the follower or bonnetf and the opposite ends of the hub or centera of the wheel A are arranged paekings consisting of metal rings g land india rubber. or other Aelastic packing washers, g2. The metal packing-rings g and I the elastic packing-washers g2 fit snugly within the inner ends of the hubs or bosses e, but are not in contact with the wheel-shaft, which passes freely through them, the inner ends fof the packing-rings being in contact with the outer ends of the wheel hub or center, and the 5 elastic washers being between the metal rings and the ends of the bushing and follower. The outcr'end of the hub e of the casing is closed air-tight by'a cap or bonnet, e2, through which are inserted adj ustingscrews c, bearingon the sleeve or bushing f, and a screw, e, bearing onl the end of the shaft B. By means of the I. screw e* and the bolts g the wheel may be properly adjusted in the easing,and by means of the screws e all wear in the packings g' g2 may betaken up. By means of these packings dirt v'and grit are prevented from getting into the shaft-bearings, and leakage through and past the shaftbearings is prevented.

I will now vdescribe the construction of the V'wheel A and its combination ywith the casing,

which are important features of my invention. In what I now consider a preferable form the wheel consists of flat plates or disks a',

:f which are bolted or riveted to the hub or center a, and may be of steel or other sheet or plate metal, and Iwings or blades a2, which project into and move in theannular channel or water-way Dit. L The hub or center a is sef cured to the shaft B by a set-screw, a?, 'or othplates, Va',

erwise, and has flanges (d, to which the side ears or flanges a5, whereby the blades are secured with bolts or rivets to the side plates, a'. .When'the pump is in operation, all dirt and grit in the water will be thrown to thecir -tom of the pump without umference of the' casing bycentrifugal force,

of the pui/ip freely; but when the. wheel A is -of the wheel with-the side plates, e', and free .opening between them, interceptedonly by the' small diameter 'of the h ub or center a,allows all dirtI or grit to fall tothe bot are secured. 'lhe blades a" are also of plate orl sheet metal', and vhave portions which are bent at right angles to them to formv The construel 'l may coming -in contact with thc shaft I5 or its bearings, and the side plates', a', prevent dirt from getting into the paekings y' g2 and the shaft-bearings. This important result is still further secured by'con,,

structing the sections D D of the casing at t-he inner circumference of the annular channel D* with inwardly-projecting lips or flanges.

d, which overlap the edges of the side plates, a', and under cover of which said plates turn, as shown in Fig. 2. work asl closely as possible to the sides of the casing so that little water may at any time be between the side plates and casing.

As shown in Fig. 2, the blades a are of segmental form and work in near proximity to the inner circumference of the annular channel Dit; but they do not project nearly to'the` outer wall of the channel, and beyond their outer edges there'is formed in the channel a water-way of sufficient capacity to permit the4 passage of large solid bodies without choking the pump or cramping the wheel. As here represented, the blades ai do not proj ect to the center of the channelDt, and the free waterway is therefore more than half the sectional area of the channel Dit. v

As best shown in Fig. 2, the two sections D D'are supported by separate and independent feet or legs d, and consequently the section D may be removed to afford access to the wheel A without disturbing the section D', or

The side plates, a', may y the wheel and driving-shaft and pulley, or the, f

suction and discharge pipes. `To steady the section D when the section D is removed, I have represented ar supplemental foot orleg,l

d, attached to the flanged jointd, as seen in Fig. 2.

The sections DD of the casing are 'constructed'with a circular series of lugs or bearers, (Z2, as shown in Figs. 3 and 4, and any two of these bearers may rest upon the feet or legs d3.' This provides foi` adjusting the pump-casing 'so that the suction and discharge nozzles D2 D3 will have any. desired poeffgion. The pump-casing may be arranged so that said nozzles will be equally above and belw a hori zontal plane intersecting the axis of the pump,

as indicated by the dotted line s s, Figs. 1 and,

3, or so thatthe two nozzles lwill have the position shown in Fig. 4 or any other desired position. v,

The nozzles D'Ds are preferably curved and have their flanged facesloated at equal angles relatively to a line, ss, drawn midway between them and intersectiiig the axis of the pump, and this construct-ion enables both casing-sections D'D to' be cast from a single pattern,

`and avoids the necessityeof making right and left-.patterns for the two sections. I also preferably pro'v'ide the flanged nozzles DiDswith elbows or bends E, lwhich represent one-eighth of acirclew'and' the faces of-whichform angles of v.forty-five'- vdegrees (45) with each other,aifd

are directly opposite each other.- VThese bends then/loe placed,' as shown iu full lines, so asto take the suction from and discharge into vertical pipes, or, as shown by dottedliues, so

as to'take suction lfrom and discharge vinto horizontal pipes. When the pump isshifted to the position shown in Fig. 4, or to any other direction, the elbows or bends E may be set as desired to give the pipes the desired direction, either in line with the plane of the wheels motion or at a right or other angle thereto.

The v,pump may be run either right or left handed todischarge either in the same direction-by reversing the top for the bottom, orto discharge in an opposite direction by reversing the wheel-shaft end for end.

It will be observed that the side plates or disks, a', of the wheel form substantially continuous and unbroken surfaces frm the shaft outward to their circumference. This is imporhaving an annular channel, D23-of approxi-y taut, as the sand and grit are thereby allowed a free space between the side plates through which to fall, and by the continuons -surfaces of the side plates sand and grit are prevented from reaching the shaft-bearings and packings. f Y

I dise the term substantially continuous and uniform surfaces, as applied to the side plates, to distinguish my wheel from the wheel of a blower or pump in which the blades are supported by arms radiating from a central shaft, or between plates of annular form having large openings around the shaft and snpported on the shaft by spiders or arms.

lVhat 'I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with a pump-casing having an annular channel, Dit, provided with suction and discharge nozzles fI)l2 D, and of substantially uniform caliber throughout its circumference, save for an abutment between the said nozzles, the portion of. the casing between the channel and the center being contracted and of less width than the channel, of a rotary pump-wheel turning'in the contracted central portion of the casing, and having blades which project Vbeyond its periphery and are flared outward frorn'its sides, and which project into and work snugly in the portion of the channel nearest the center of the casing and afford. a free water-way beyond the outer edges of the blades, substantially as herein described.

2. The combination, with a pump-casing mately circular transverse section, provided with suction and discharge nozzles D2 D, and of substantiallyuniform caliber throughout its circumference, save for an abutment between the said nozzles, the portion of the casing between the channel and the center `being'ontracted and of less widththau thechannel, of a rotary pump-wheel turning inthe contracted central portion of the casing and havingblades `whichproject beyond its periphery and are flared outward from its sides, and which project intoand work snugly in the portion of the channel nearest the center of the casing,

but which terminate inward of thecenter ot" the channel, and therefore afford afree waterblades,sub-

to their outercircumferencc,and between which a space is afforded for falling dirt and grit, l

and-blades attached to the side plates near their periphery and project-ing into and working in said channel,substantially as herein described.

4,. The combination, with a pump-casing `having near itsfperiphery an annular channel provided with suction and discharge nozzles, both of which communicate directly with said channel, and having inwardly-projecting lips or anges d4, of a 'shaft and a pump-wheel thereon consisting of side plates which form substantially continuousland unbroken sur- Afaccs'fmm the shaft to their circumference, `and which work under cover of said lips ory flanges and afford between them a space for fallingdirt and grit, and blades attached to and projecting beyond the side plates' into the channel and working therein,substantially as herein described. v

5. The combination, with a pump-casing having near its periphery an annular channel provided with suction and discharge nozzles,'

both of which communicate directly with the channel, of ashaft and a rotary pump-wheel consisting of a hub or center, side plates secured to said hub' and forming substantially continuous and unbroken surfaces from the shaft to their circumference and affording between them a space for falling dirt and grit,and blades secured to the side plates and projecting beyond their outer edges into said channel, substantially as'herein described.

6. The combination, with a pump-casing having near its' periphery an annular channel provided with suction and discharge nozzles, both of which communicate directly with the channel, of a shaft and a'rot-ary pump-wheel secured thereon and consisting ofsidc plates, a', lforming substantially continuons and unbrokeu surfaces from the shaft to their circn n1- ference; and ailording betweenV them aspace for falli ug dirt and grit, and blades u?, projecting Vbeyond the side plates into the channel, and having cars n.5 projecting at right. angles,

vand by which they are secured betweenihe side plates, substantially as herein described.

7. The combination, with a .rotary pump-` wheel, of a casing having an annular channel provided with suction and discharge nozzles D'l D and made in two halves or sections, each of whichis a fac-simile of the other, and which lare lunited by a joint which is continuous through the nozzles, the two nozzles being, curved uniformly, but in opposite directions IOO from a line drawn midway between them :and

intersecting the axis of thepump, and the faces of the nozzles having similar but reverse angles relatively to said line, whereby provision is afforded for casting the tivo halves or sec' tions from one pattern, substantially as herein described.

8. The combination of a rotary pump-wheel I and a casing having an annular channel provided with suction and discharge nozzles curved uniformly in opposite directions from aline drawn midway between them and intersecting the axis of the pump, and having their faces at Ithe same but reverse angles relatively to said line and bends, each forming one-eighth (t) of acircleand secured to the nozzlcs,where by the pump is adapted for use with either horizontal or vertical suction and discharge i pipes by simplyreversing the position of the 'to the casing, and screws el, bearing on the sleeve or bushingf and serving to` tighten both packing's, substantially as herein described.

10. rlhe combination, with the pump-casing and the shaft and rotary pump-Wheel, of'packings immediately surrounding the shaft` on. opposite sides of the wheel-hub, the sleeve or bushing f, forming one of the shaft-bearings and fitting within' the hub e ofthe casing, the cap e outside the sleeve or bushing f, and the screws e et, inserted through the cap e2, and serving, respectively, to adjust the sleeve or bushingf to just the shaft, substantially as herein deseribed.\ v

1i. The combination, with a 'rotary pump- Wheel, of a casing composed of similar halves or sections, each having a circular series of ears or bearers, di, projecting laterally from its outer side near the circumference, and feet or legs d, made separate from each other and from the casing, and on the upper surface of which the two halves or sections of the casing are supported independently of each other through the ears or bearers d2, substantially as and for the purpose herein described.

' 12. The combination, with a rotary pump wheel, of a casing composed of similar halves or sections D D', having separate and inde tighten the packings and toadpendent legsor feet, whereby they are indil vidually supported, and an intermediate foot or leg, di, supporting the inner sect-ion, D', at itsjoint, substantially as and for the purpose herein described,

WILLl AM DRAPER ANDREWS.

Witnesses:

GEO. H. Asnanxvs,

iii. A. ANDrinWs.

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