US2355928A - Pump - Google Patents

Description

Aug.. 15, 1944. J, E STEVE-Ns 4 2,355,928 PUMP Filed Nov. 2:5, 1942 T; y I 3//3 Byjwm Arroz/vir Patented Aug. 15, 1944 UNITED STATES PATENT OFFICE PUMP John E. Stevens, New York, N. Y. Application November 23, 1942,ser`ia1`No. 466,625

11 claims. (o1. 10s-72) This invention relates to pumps, and aims to provide a novel pump structure whereby a practical and efficient pump may be made which is extremely simple in construction and operation. The general principle of the invention is the utilization of a notched or cogged belt trained about a pair of rollers, drums, pulleys, or the like of unequal size, so that when the teeth of the belt pass around the smaller roller the water caught between successive rows of teeth is squeezed out. The belt may be made of any suitable exible material or combination of materials, of which rubber may be cited as one eX- ample.

The above and other objects will become apparent in the description below, wherein characters of reference refer to like-numbered parts in the accompanying drawing which forms a part hereof. It is particularly to be noted that the drawing is intended to serve the purpose of illustration only and that it is neither intended nor desired to limit the invention necessarily to the specific details of construction shown in the drawing, excepting insofar as such details may be incorporated in the appended claims.V

Referring briefly to the drawing,

Figure 1 is a longitudinal cross-sectional elevational view of the pump.

Figure 2 is a cross-sectional View taken onl the line 2-2 of Figure 1.

Figure 3 is a cross-sectional View taken on the line 3-3 of Figure l.

Figure 4 is a cross-sectional view taken on the line 4 4 of Figure 1.

Referring in detail to the drawing, the numeral I shows the pump housing, which comprises essentially a shell II enclosing one side, the top and bottom of the pump, and a panel or cover l2 secured against the periphery of the shell II, by any suitable 4means such as, for instance, the' screw bolts I3. A supporting base or pedesta i1 is integral with the shell II. i

A shaft I4 is supported in bearings supported in the shell Hand panel I2, respectively, and has keyed thereon a pulley or` wheel I5.- One end of the shaft i4 extends through an opening in the panel I2 to the outside thereof so that it maybe driven by any suitable means such as, for instance, a motor or a crank handle, not shown. An inlet opening I6 is provided through the side wall of the shell II and is positioned ,below the shaft I 4, as shown.

As is seen in Figure 1, that end of the pump housing in which the shaft I4 and roller` I5 are mounted, is of greater height than the other end.

Against the inside of the side wall of the shell Il, at the reduced end of the housing I0, a member I8 is mounted. In outer conformation this member is of the same curvature as the curved shell at that end so that it registers snugly within the shell. The member comprises a base or plate portion i9 which lies flush against the shell side wall. Extending from this plate I9 is an outer wall 20. Also extending from the plate I9 is a block portion 2l, whose converging side walls 22 are parallel with the inner side walls 23 of the wall 20. The reduced end of the block 2| is gouged out to provide a cylindrical surface 24. A @over plate 25 is adapted to be screwed against the member I8. This plate 25 and the base plate I9 have opposed openings 26 inwhch pins or spindles 21 of a roller 28 register rotatably, the surfaceof the roller registering rotatably within the cylindrical gouge 24 of the block 2 I. With the roller 28 thus positioned,A it is apparent that a channel 29 of constant depth and width is formed within the member I8 and .covered by the plate 25, the inlet to this channel being taken at the point 30 and the outlet at 3l. f

A belt 32 is trained about the .wheel I5 and the roller 28. On its inner side, the belt 32 is provided with spaced kteeth or cogs 33, and the belt is made of flexible material of any suitable kind such as, for instance, rubber. An outlet opening 34 is provided throughthe plate I9 and shell II adjacent the lower periphery of the roller 28, and a nipple 35 extends therefrom.

The operation of the pump is as follows. With the type of pump illustrated, a hose may be attached to the inlet nipple 36 of the inlet I6 and the open end of the hose, not shown,l placed into the water to be pumped.V The shaft I4 is then rotated by any suitable means, not shown, in a clockwise direction (Figure 1). As the belt then travels in its path, it is to be noted that the teeth 33 thereof are brought together as soon as they begin to pass about the reduced roller 28, and the air which is thus squeezed out of that space is forced out through the outlet 34; thus fills the raceway, the leakage can be maintained.

at a minimum.

'I'his pump has a wide eld of applications and it can be built for hand or motor power. By mounting it in such position that the larger end is set into the water with the reduced end positioned thereabove out of the water, it is obvious] that it would function efiiciently as a deep well pump by simply elongating the housing and using a long belt. Obviously, modifications in form and structure may be made without departing from the spirit and scope of the invention.

As a means to tend to guide the water Within the housing toward the belt and into the spaces between the teethv33, a deflector 3T is provided. This comprises simply an angle-shaped sheet of any suitable material secured to the outer wall of tn efblockY 2| just above the inlet 3U to' the channel o'rraceway 29. This isespecially useful when the belt is traveling at high speed and isconsequently agitating the water within the housing.V

`Itv is further to be noted that the device could function Vwitlnboth roller and pulley of the same diameter, although in that ca'se it would not be as efficient nor, probably, as practical as in the case illustrated. `I'claimg o 1. 'A pump. comprising a housing having a, rotatableshaft provided with a pulley rigid thereon and'mcunted'in one end of said housing, a roller mounted in the other end of said housing, a belt of flexible material trained about said roller and pulley and havingV longitudinally spaced teeth on the'inner surface thereof, a casing secured to said housing `and surrounding said roller, said casing having a belt racewayrformed therein of the same depth and width as said belt, said housing having an inlet opening Vadjacent saidpulleyand an outlet opening'adjacent said roller, l

2,. Apuinpcomprising a housing having a ro` tatable shaft provided with a pulley rigid thereon in one endrthereof and a roller mounted in the other'4` endA of the housing, the vdiameter of said roller being less than that' of said pulley, a belt of flexible material trained about said roller and pulley and having longitudinally spaced teeth on the in neosurface thereof, a member-secured toV said housing aroundA said roller and having a belt raceway extending i therethrough, said race'way being of the same depth and width as said belt, said' member and 'said belt registering in said raceway sealing the pulley side of said housing fro'mthe roller 'side thereof', said housing having an yinlet opening therethrough adjacent said pulley and anV outlet opening therethrough adjacent said roller.

' V31A Vpump comprising a'housing having a rotatable pulley in one end anda roller in the other,

a belt of nexible material trained about saidA rollerandpulley. and. having spaced projectionsV onfthe .inner sidethereof, said housing having an inletl adjacent said pulley. and .an .outlet adjacent said. roller, and sealing meansibetween said roller andrpulley, aix.; f 1.

nf1. -A;pump comprising. .a housing having' a pulleyat one endandl vafroller at` the-:other end,

to actuate said pump.

5. A pump in accordance with claim 4, wherein one of said wall openings is provided on the pulley side with a deflector consisting of an angleshaped member having one arm thereof extending angularly outward therefrom.

6; A pump in accordance with claim 4, wherein said teethare tapered toward the free extremities "thereof,

7; Apump comprising a housing having a pair of spaced apart rotatable pulleys, a partition vdividing's'aid housing into two compartments, one of said pulleys being positioned in each compartment, said partition having a pair of spaced openings therethrough, a belt of flexible material trained about said pulleys and having spaced teeth on vthe inner side thereof, said belt passing through said openings and being of the same cross-sectional dimensions. as said openings to seal said openings, `said housing having an inlet opening into one of said compartments and an outlet opening into the other.

8. A pump comprising a housing having a rotatable pulley in one end and a roller in the other, said Yroller having a smaller diameter than said pulleyja belt of flexible material trained about said roller and pulley and having outwardly tapering Vspaced teeth on the inner side thereof, said housing having an inlet adjacent said pulley andan outlet adjacent said roller, and sealing means between said roller and pulley.

'9. A pump comprising a housing having a rotatable pulley in one end and a roller in the other, said roller having va smaller'diameter than said pulley, a belt of flexible material trained about said roller and pulley and having cog-like projections thereon extending laterally across said belt on the inner side of said belt, said housing having an'inletV adjacent said pulley and an outlet adjacent said roller, and sealing means between said roller and pulley.

10. A pump comprising a housing having a ro-Y tatable pulley in one end and a roller in the other, said roller having a smaller diameter than said pulley, a belt fof flexible material trained about said' roller and pulley and having laterally extending longitudinally spaced projections on the inner side thereof, said housing having an inlet adjacent said pulley and an outlet adjacent said roller, and sealing means between said roller and pulley.

11.` Apump comprising a housing having a rotatable pulley in one end and a roller in the other, .a belt of flexible materialtrained about said roller and'pulley and having spaced recesses onthe inner sidethereof, said yhousing having an inlet adjacent said pulley and an outlet adjacent saidroller, .and sealingmeans between said roller and pulley.Y v

JOHN E. STEVENS.

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