US815439A - Centrifugal pump. - Google Patents

Description

v*Enann aA'rI- D -KROGH ANDCARLA. Karien, or SAN FRANoIseo, 'l l- CALIFORNIA. l A a v' ci-:VNTHIFUGAL-PYUMP. f -'N9 81 j 439 l i l l'iSpe(initiation gifpettersatent;rj. Patented l To all whom/it 'cori/cent.; l

y KRQGH' and CARLA. Kizoen, citizens of the fV United {States} cisco,. in the countyof San FranciscofState of California have and 4residents of f Franl'nvented a new andfuseful 'f' e lmrovement in Centrifugal Pumps and we ereby declare that Whichfitmostnearly appertains to make, use;

y and practice the same.'

" the same, as

but more particularly tosthat` "classcalled centrifugal and it consists yespecially in ythe connecting ump-casing and 'to provide same ywith 'suita' the casing and the impeller and at the same time provide suitable means-for lubricating will be=. n'1ore l fully described hereinafter; Y' f Reference is made tothe herewith-anneked w drawings, "consisting j of five "'igures; f which central vertical 'per horizontal form apart of thisspecification,` in

an ordinary centrifugal .pump. Fig. 2 isa Vsection taken from Vdotted line 1 to 1of Fig-s invention. Fig. f 3 fis an from dotted line 2 to ,Of Fig. 3 looking in .the direction ofthe arrows; and Fig.; 51is a viewY taken from dotted line 3 to3 of Fig-4, showinglparticularlyv the Like letters ofreference made .use of in the several figures indicate like'parts wherever "emlployed, .s 1

represents the casingof an ordinary cene.

vtrlugal axis; B,`a vertlcal base'provided :with anupand C 1s a `elbow suction or Iinlet pipe mou-nted urion asuitable line, Fig'. 2. Y The casing A is mounted bey' tween the endsy ofgthe elbow-pipe C and`r the upper horizontal cylindrical bearing portion v Y Application led September 1,1908. Seria1'No. .17' 1,

thefollowin'g is a full, clear, .and exact description of said invention, such as will enable others skilled in the art toy drical iiangesk b, Ournvention relates to pumps ger` 1"eral,.

lepackingas the object otV a water-tightjoint between which- Figure 1 represents a vertical elevation of 1 with va portion broken V 'view show lng particularly. ourimprovedjannular col'4 packing and lubricatingV means Fig. iisA a segmentalvlew taken `means rvby whicl 1` the annular collars areadjustedin position..

puinp, projecting outwardly at its cylindrical bearing'V portion base, as shown in dotted vmeansr of angular brackets D, bolted to the annular rejections a, formed around the ends'- oft v-ltsfcentral portion is provided withcylin- `iecting franges b of the 1nner. sides lor'- the an adjustab'ly secured in position byfmans 0f.- bolts 'H5 holes e, bored Fig.- 5, The bolts H fof the packing-rings or annular collars d, whlh'rlligs upon 'their circumferences to recelve sald 1n- The walls of the holese are provided at the in- `bolts outwardly. Y The tensionof said springs endof thebolts. By this arrangement .the

annular collars d are `constantly forced against faces ,1 of which are provided-' with circular between the annular cylindrical c bearing portion y'of' the verticall adjustably securedy within the Y through the sidewalls ofthe caslng or at lts axis for'that purpose, asis the inner sides of the casing and the bearingf 'l s xo 5 lpackings m, Whichfmaybe of any suitable material, thus providinga water-tight joint collars d and the inner March 20,' JQ. y l

the base B and rigidly secured ,thereon 5 5' Y axis ofthe casingandj'adjusted against the e elbow-pipe C and the horizontal the'v upperv horizontal cylin- Q 2 drical bearingportion 'of the-vertical base'B. j

65 projecting outwardly from v its sides-into annulardepressionscutinwardl .s s around the axis of the casing within which 1t .'revolves. Surrounding the cylindrical prothe impeller E just mentionedand Within the recesses'c, madefuponl f .casing atits axis', are` A packing-rings y'orl annular collars "d, formedV an" larly to provide suitablebearing-faces outer end with nuts f 8o A s i VTheinner .Y f, en s of the boltsare bent to o verlapther edges f r or lcollars have notches 71; formed v ner ends and hold thebolts rigidwhle the,` nuts are beingscrewedon their outer ends.y

59 ner ends of said holes with' annular inwardly#` f projecting shouldersfi, through which the vbolts pass centralil A, and near said shouldersl 'l arelocated' washers aid shoulders are. inter- Z, whereby Water-tight joints j Between the washers g and'c and coiled around the bolts are springs J, -which are intended to pull said' IOO is regulated by the nut f, secured at the outer f; l

y said stationary an faces of the casin and the outer circumference of the cylin rical flanges b of the impelcler E, as particularly illustrated in Figs. 3 an 5. Conveniently formed through the axis of the casing are oil-conduits n, which are connected to the oil-conduit 0, bored through the annular collars d. The oil-conduits o are provided at their upper end with a small pocket dp, in which the oil drops in from the oil-con uits n, and their lower ends are connected to an annular groove g, invertedly formed within the inner bearing-face of the collars d, which are adjusted to 'the cylindrical flanges b of the impeller, thus fully lubricating that portion. The oil-conduits n are provided with oil-cup K to supply the oil to the grooves g and lubricating the bearingfaces between the collars d and the cylindrical flanges b of the impeller E.

Believing we have produced a simple and effective means of packin and lubricating the connecting portion of tIie impeller to the casing of a centrifugal pump and having fully described same7 what we claim as new, and desire to secure by United States Letters Patent, is-

l. In the class of machinery described, a movable packing-ring secured to the stationary part and havin faces engaging seats on moving parts and provided with means Jfor preventing leakage of water between said faces and seats.

2. In the class of machinery described, the combination with a stationary part and a moving part, of a movable packing-ring having faces engaging seats on said stationary and moving parts, spring-pressed means for securing said ring to said stationary part, and means for preventing leakage of water between said faces and seats.

3. In the class of machinery described, the combination with a stationary part having an opening, and a moving part in said stationary part, of a packing-ring having faces en aging said stationary and moving parts, a bo t extending through said opening and engaged with said ring, means tending to force said bolt in one direction, and packing means contiguous to said bolt.

4. In the class of machinery described, the combination with a stationary part having an opening, and a moving part in said stationary part, of a packing-ring having faces e aging said stationary and moving parts, a

bo t extending through said openin and engaged with said ring, means for ho ding said o t a alnst axial movement, a sprin on said bo t, tending to ress the same an the acking-ring in one irection, a tension-ad- 6o justincg1 means for said spring, and a acking on sai bolt, for the urposes specific 5. In the class ofp machinery described, a stationary and a moving part a movable, packing-ring secured to the stationary part, ,6 5 and having a, face engaging a seat on the, moving part and provlded with means for 1 preventing leakage of water between said face and seat, in combination with means for lubricating said face of the ring.

6. In the class of machinery described, the combination with a stationary and a movable part, of a packing-ring secured to the stationary part and having a water-tight face engaging a seat on the moving part, said packingrin also having an oil-conduit open upon sai face, and means through which said conduit is supplied with oil.

7. In a centrifugal pump, the combination with a casing having shoulders, and an impeller rotating in said casing, of packingrin s engagin said impeller and rovided wit adjustab e means for connecting them to said casing, com rising bolts extendin through said shoul ers and engaging sai rings, a spring on each bolt, and washers at the ends of said spring.

8. In a centrifugal pump, the combination with a casing having shoulders, and an impeller .in said casing, of packin -rin s engaglng said impeller and provide wit adjustab e means for connecting them to said casing, said adjustable means comprising bolts extending through said shoulders and connected to said rm s, springs on said bolts, washers at the en s of said springs, nuts at the outer ends of said bolts, and a packing on each bolt, interposed betfen the inner washer and the contiguous shoulder.

In testimony whereof we have affixed our signatures, in the presence of two Witnesses, this 15th day of August, A. D. 1903.

YIn presence of J. CoRINsON, N. RAsoHEN.

IOO

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