USRE276E - Rotary pump - Google Patents

Description

e f'Be it known of Massachnsett the same isfc 'ing' drawings,

. the drum. As of wea;` often being so great the pump, such-waste oft or three dollars v UNITED )STATES PATENT Ormea,

RoT-ARY PU M P.

Specification frrningpart of Letters Patent No3; 8,602

Septemb maf/yv concern:

that I, TWILLIAM BALL, of county of Hampden and State` i s, have invented a new and usefnl'improvement in rotary pumps or machines forl elevating from a lower to a higher level a mixture of water or liquid and aurif- Chicopee, in the presented g specification and accompanyletters, figures, and references in the followin thereof.v

Inv conveying from a machine for washing ores to an amalgamatingmachine water charged with auriferous sand or gravel, a rotary pump lor elevating apparatus is found veryconveni'ent, as it avoids the necessity of i placing th'wasning'mach1ne at a level' above the top `of the amalgamator. A machine such as I have heretofore used consisted of a circular drum or chamber having a fan-'wheel revolving in it, and so arranged or constructed as to receivethe mixture of water and earthy particles through the central part of one side of e the chamber, and drive or tali-row it up through a pipe leading out of thetop or periphery of necessity the axle or shaft of the rotating fan-wheel must'pass' through and rotate in one-side of the drum or case, it has been found-that it,'orthe ho1e through which it passes, soon becomes Worn 'to such extent as to enable much of the sand and water to escape outl of the pump and through the said hole'or space between it and the shaft, such as to create a serious ,da-ted December Q3, llfs'il; Reissue No. 276, dated er .12, '1854.

To remedy this inconvenienc the second part of my invention, which consists'in protecting the interior of the pump by a lining which is partsfwhich are exposed to the'most wear, and which, when destroyed, may be replaced with but very little expense or delay. To enable others skilled in the art to make `and use my invention, I will proceed to describe the method which I have adopted of carrying it out.

Figure 1 of the aforementionedv drawings represents a top View ofrone of my improved ore pumps or elevators. Fig. 2 is a View of one side of it.- Fig. 3 is a view of the other side of it. Fig. Leis a vertical central' and longitudinal` section of it, and Fig. 5is a ver- `ticalcentral and transverse section of it. i

. Inthe said drawings, A denotes the outer case of the pump, which case is composedof 0f two meniscus-shaped plates, d c, placed and confined together withv their convexities outward, orin opposite directions to each other. They have iianged peripheries that are conned together by screws c a, &c. An induc- 'tion openingor passage, b, lis made through the central part of one ofthe plates--viz.,"cwhich openingleads out o f, that is castor formed on the'side vof the part -e, and so made as to be capablegof receiving the liquid auriferous mud and allowing it to flow into the Vpassage b, such mud or mixture of ore and waterv being conveyed into the trough f by means o fa spoutleading from thel stamps.- A4 fan-wheel, B, plays or rotates lWithin the' case A, it being. mounted `on an waste when auriferous sandis running through en amounting to two Wcrthof gold per day, e

The wear of the various vparts of the pump, in consequence of the sand or gritty particles becoming introduced between various parts of thelstill and moving surfaces of the pump, has been a serious evil, and whichA it is the object of my improvement or improvements to prevent to a verygreat degree It'was also found that the sharp sand and pulverizedquartz'carried round with the water .such force against the inte pump that the casing wasvery soon Worn through. and the pump required'to be entirely renewed,

expense.

occasionin'g bothydelay and axle, D, which `extends through the central part of the disk d, and is supported in bear,- ings h c', made ona frame, F, which is secured to the outside of the case A, or placed as seen in the drawings. The said axle or shaft has a driving-pulley, G, fixed on it, laround the periphery of'whic a driving-drum is made to' play orTrun. To the intern aiiix a circular metallic ring, or l,`which has a form'in cross-section, as seen in Fig. 5, and is secured to the disk or interior casing of the pump by screws or otherwise. These rings are 'so formed as to contract the interior ofthe pump-chamber so as' to leave but between them and the revolving fan. IuFig.

e is the object made thickest upon thosev f a hopper ortrough,A

h pulley an endless belt from al surface of each disk I screwor "f a small space to impair the operation of the pump, an

4 Working order as when n formerly subjected charge-pipe,

this space is represented as slightly enlarged by the attrition of the sand, as before mentioned. y Vhen this wear has increased the distance between the fan and the rings, so as d before the main shell of the pump is injured, the rings k Z and thefan-whcel B are replaced by Others, and the pump is again in as perfect first constructed. It will be perceived that v this contrivance entirely removes the difiiculty heretofore experienced, the body of relieved from the great wear to which it was by the rotation of the sand. The rings h and Z divide the internal part of the case A into two concentric cham bers, 'm n, which are connected together by a very thin space, p, left between the two rings. The fan wheel B rotates within the inner chamber, m, the form of the fans being represented in the drawings,they being of a lozenge shape, or approximation thereto. Ont of the external chamber and tangentially to it, or thereabout, I carry the discharge-pipe K. The object of the two chambers m a, connected by a thin passage just wide enough to allow the requisite quantity' of the sandy liquid to flow through it, is to prevent Wear of the joint or packing between the two plates d e, forf it is found that without some such an arrangement or means the rapid 'rotation of the water and sand in the case A, caused b y the fan-wheel,wi1l very soon wear out the packing and the joint. In my improved pump the greater part of the rotation of the liquid takes place within the linner chamber,v while the liquid in the outer concentric chamber, in lconsequence of the backpressure of the column of water in the disscarcely revolves, Or does so to so small an extentas to do no very material damage to the Outer packing or joint Of the plates of the case A. j

Closely surrounding the axle or shaft D,(but not-sufficiently tight to prevent the rotation the pump being entirelyr of the shaft,) and against thc plate the case A, I make a chamber, q, and within the said chamber and on the shaft I place and fix a small collar, r, whose side is nearly in contact with the side of the case q.

At the bottom of the chamber q, and through the plate d of the case A, I make a small hole or passage, t, leading from the chamber int-o the case A. j

vinto thc'case Whatever water and aurifcrous sandthat may work through the shaft-hole of the case A will flow `against and be caught by larr during its rapid revolutions and be thrown toward and o the. periphery of the wheel and against the contiguous surface of the chamber q, .and from lthence will descendv toward and pass or be sucked through the passage t and A. The collar r thus prevents' the water and sand'irom coming in contact with that part of the chamber q which is immediately contiguous to and surrounding the axle, and thereby not only prevents wearof the Ashaft-hole of the chamber, but the escape of the fluid and sand, and consequent loss of gold or metal.

1. Theimproi riferous or'earthy'water'that leaks out of the shaft-hole of the case Afis saved and returned into the body ofthe case, and the wear of the shaft-hole of the chamberq prevented,the said improvement consisting in the chamber q,the collar r, and the passage t, as combined .to-

gether, connected with the case A and the shaft of the fan-wheel, and made to operate substantially as specified.

2. The rings Ic l, as constructed and applied to the interior of the pump, for the purpose set forth.

WM. BALL.

Witnesses:

SAM. COOPER, J OHN S. BLow.

or disk d of the coly ement by/which the Waste au-

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