US934859A - Rotary pump. - Google Patents

Description

A. E. TRIPP. ROTARY PUMP.

APPLICATION FILED AUG. a, 190s.

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ALBERT E.' TRIPP. OF INDIANAFGLS, INDIANA.

ROTARY PUMP.

Specification of Letters Patent.

Patented Sept. 2li., 11%9.

Application filed- Ang'ust. 3, 19583 Serial No. /l.

To all whom 'it may concern:

Be it known that l, ALBERT E. TRIPP, a citizen of the United States, residing at .Indianapolis, in the county of Marion and State of indiana. have invented certain new and useful improvements in Rotary Pumps and l 'do declare the following to be .a full, clear, and exact description of the invention, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

This invention relates to the class of pumps that are designed to raise water from wells, theinvention having reference more particularly to a pump that is adapted to be used in wells of considerable depth and for raising considerable volumes of water, the

pump being-adapted to be used either in driven wells or in excavated wells and also iin cisterns or elsewhere. l The object ofthe invention is to provide a highly eflicient and cheaply constructed pump that will be durable and economical in use.

The invention consists in an improved A-pump comprising a tube, a rotative shaft in the tube provided with a plurality of impellers of novel form of construction, and a plurality of'sets of curved and flared guide arranged in the tube and supported in a stationary manner below the impellers; and the invention consists further in the novel parts, and combinations and arrangements of parts, as hereinafter particularly described and defined in the accompanying claims.

Referring to thedrawings Figure l is a vertical. central sectional view of the pump connected with a well and broken away in parts; Fig. 2, a horizontal sectional view as at the pla-ne of the line A A in Fig. 1 with the impeller in changed position rotatively; Fig. El, a side elevation Vof one of the impellers on its shaft; Fig. 4. a horizontal sectional' view on the line B B in Fig. 1'; Fig. 5, perspective view of one of the guides; and Fig. 6, a fragmentary vertical central sectional view of the pump cage for guiding the impellers and shaft and also for supporting the guides.

Similar reference characters in the drawings indicate corresponding elements. or features of construction.

In the drawings the numeral 1 vindicaties a section of the earth or groundfin which is a well tube or casing 2' forming'the wall of l the well that is open at its bottom to receive water from the earth. A cage is 'inserted' in the well removably oand may suitably comprise any suitable number of sections of tubing as 3, l, o, 6 connected together in any suitable manner, and when the cage is intended to fit closely into the well tube the upper end of each section preferably is swaged, so as to form a relatively small end 7 that is inserted in the lower enol of the adjacent section and secured thereto by screws 8 having flush heads 9, so that. there will be no external projections on the cage which may be composed of any suitable metal.

'l'he cage is continuous from the uppel portion of the well down to a sullici'ent depth to extend below7 the water level, and when used in relatively close connection with the well tubing neednot be water tight, nor have water tight joints where the sections are connected together.y but the cage may be made water tight throughout its length in case the pump is to be used in a .well having large diameter, so that the cage'would not be close to the` wall of the` well, in which case the cage would serve as a pump barrel in which the atcr would be raised.' l'Vhen the cage is constructed so as to fit closely into the well tube it is obvious that the cage may be. more or less open in parts, vif desired,

in order to facilitate construction thereof of` suitable ball-race or a cup, a cone-bearing 17 being arran ed on the bearing-balls. The housing preferably has a bottom plate 18 at,- tached thereto through which extends a rotative shaft 19 which is secured in the conebearing 17 by a pin 20, the shaft extending downl into the well nearly to lthe lower end of the'cage. lA pulley 21 is secured to the shaft 19 above the cone-bearing by a pin 22, and the guide collar 2l is secured to the shaft beneath the bottom plate 18`by a set screw 22', but if desired the collar may in some cases be dispensedwith.

In order to lift the water from the well a suitable number of impellers are secured to the shaft at suitable distances apart, the impellers being all alike and 'each comprising essentially a hub and one ormore spirally arranged blades onA the hub, the peripheral portions of the blades being adapted to- `engage the inner side'of the cage for-guidance. The lowermost impeller has a hub 23 secured to the lower -endportion of the shaft by a set screw 24, a blade 25 extending spirally about a portion of the hub and having al1 upturned flange 26 and'also a downward extending flange 27. Farther up on the shaft a similar hub 2,8 is secured thereto by a set screw 29, there being spiral blades and 30 on the hub, and farther up on -the shaft a hub 31 is secured to the shaft by a set screw 32, spiral blades 33 and 33 being attached to the hub. At asuitable distance higher up a hub 34 is secured to the shaft by a set screw 35 and hasta spiral blade 36 thereon. Each impeller preferably comprises two blades, as 33 and 33, arranged with the uppermost ends in one horizontal plane at opposite sides of the shaft ,and the lowermost ends of the blades in another plane at opposite sides of the shaft, so that the blades may act similarly to a boring-bit or twisted augur. The peripheral edges of'the blades y side of the cage.

are broadened in order to provide bear-ing surfaces .of suitable extent against the inner This is accomplished by formino' the flanges 26 and 27 on the edges of the Lblades, and it is obvious that either one of .the flanges might be omitted and that 'm lieu of the flangesthe blades themselves may be made sufficiently thick for the pur pose, orthe edges thereof otherwise broadened to afford ampley hearing surfaces. In`

the smaller sizes of pumps, however,- the blades may be relatively thin throughout.

Just below each impeller a set. of guides ,is suitably secured to. the inner side ofthe cage and each set comprises a suitable num- ,ber of curved guide wings, as 37, 38, 39

formed of sheet metal, each wing having one end thereof secured to; the cage and curved away from the cage toward the shaft 19, the lower portion of each wing being curved inwardly more 4than the upper-portion of the wing, so that each wing is flaring and designed to cause the rising waterto flow upward past the inclined sides of the wings. wings 40, 41, 42 arranged higher up 1nI the cage, the wings of this set' having thefupper portions thereof` flared away from'they shaft to a greater extent than the wings bethose. below.-

Another set o f guides comprises low. Farther up inthe cage is another set of guide wings 43, 44, 45 that have their upper portions flared away from the shaft'stl l .more than those next below, and. it is designed that each higher' sety of wlngs in 'a pump'shall be ared outwardly to a greater degree than those next below, in order thatv thev water may have its motion quickened in progression toward'the outlet of the pump. Each guide wing, as 38, has rivet holes 46 in one of its, edges by which it is secured to the cage preferably by rivets 47.

In practical? use any suitable power may 'be applied to the pulley or wheel 21 andthe shaft is driven in the direction indicated by the .arrows at a high rateof speed; the blades of the imp'ellers all force thewater upward and also cause'the water to move slightly .in a circular direction and being impelled 1 against the guide wings will thereby be caused to rise, so that increased efficiency of the pump will result.

Having thus describedy the invention, what is claimed yas new, is-

1. In a pump, the combination with' a t-ubular cage, a shaft rotatable in the cage, and' a'n impeller secured to the shaft to rotate therewith, of a plurality of guides comprising sheet metal wings that are secured to the inner side of the cage below the impeller and are curved atl their lower ends inward and extend substantially to the shaft, said wingsv being curved inward at their upper ends to4 points approximately midway between the cage and the shaft,.both sides of each wing standing at angles to the axis o f the shaft. 4 y, 2. In a pump, the combination with a tubular cage, a shaft rotatable in the cage,and a plurality of impellers secured to dierent parts of the shaftto rotate therewith, of a plurality of sets'of guides, each set comprismg sheet. metal wings th t are secured to vthe inner side of the cage below an impeller and curved inward toward the shaft, the lower ends of the wings extending inward to a greater extent than the upper ends of the wings so that the wings are bodily inclined, and the' wings of the sets progressively upward being inclinedl in greaterdegree than

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