US1570897A - Screening device - Google Patents

Description

Jan. 26 1926.

c. G. KNOBLAUCH scxrsmuue nsvrcn Filed Nov. 25, 1923 2 Shasta-Shut 1 Jan. 26 1926. 1,570,897

c. G. KNOBLAUCH SCREENING DEVICE Filed Nov. 26, 1923 2 Sheath-Shut 2 Mum Patented Jan. 26, 1926'.

)UNITED STATE-s i 1,570,897 PATENT OFFICE.

CURT G. KNOBLAUCH, F PARK RIDGE, ILLINOIS, ASSIGNOB T O LESLIE IP. GREEN,

, 0F CHICAGO, ILLINOIS.

' scBEEn'iNG DEVICE.

.Appliezaltion filed November 26,1928. Serial No. 677,132. i

To all whom t may concern:

Be it known that I, CURT G. KNOB'LAUCH, a citizen of the United States, and a resident of Park Ridge, county of Cook, and State of Illinois, have invented certain new and useful Improvements in lScreening Devices, of which thefollowing is a specification.

'My invention relates to new and useful improvements in screening devices, and more particularly to rotary's'creens, such asare used for screening' and washing particles of material, such as sand and the like.

An object is to provide such a' device with means for screening the material while said material is submerged in the cleaning liquid, for thoroughly cleansing the material.

Another object is to provide such a device with means on the screening mechanism and movable therewith for elevating, deflecting and discharging the screened` material.

A further object is to provide screening mechanism with means for velevating the screened material and means to adjust the capacity of said elevating means.y f

.-And another object is to provide such `a device having a rotary screen mounted to operate in a liquid container, for simultaneously screening and washing the material in said liquid, and having means on its periphery for elevating and deflecting the screened and washed material out of the container.

Fig. l shows my 'invention in side elevation, partly in section'on line 1`1 of Fig. 2;

Fig. 2 is a cross section on line 2-2 .of

Fig. l;

Fig. 3 is a side view, partly in section of a modified form of my invention;

Fig. 4 is substantially a cross section on line 4-'4 of Fig. 3, and v Fig. 5 is across section online 5-5 of Fig. 3.

The preferred form of my invention, illustrted in. Figs. 1 and 2, comprises a receptacle or container for receiving water or any suitable liquid for washing the material which is being screened. A high supporting and bearing member 11 with a bearing'sleeve 11, and a short supporting and bearing member 12 with a bearing sleeve 12 are mounted on the opposite ends of said container and support the shaft 13 with its screen 14 at the desired inclinationor slant and to operate in the liquid in said container 10, suitable retaining collars 15 being pro'- vided on said shaft. The shaft is vfastened to the screen by meansv of two or more spiders 16 provided on their arms with shoes 17 whichv are fastened to the screen. A suitable sprocket gear 18 or, suitable driving element is fastened on theend of said shaft. )The screen is v-constructed of a strongfma.- terial with a mesh of suitable fineness, one or more gauge of screen being used. Where morethan one gauge or mesh of screen is used, the parts or screens are arranged in axial or longitudinal alignment and according to ineness Aof mesh, the finest mesh 14 being placed atthe receiving end, 'as'shown Means. is provided on' the devicer for elevating the material out of thel container and for deflecting and discharging it beyond the same, said means preferably consisting of one or more members or bars 20 extending outward. and longitudinally along the .periphery of the screen, and having the louter portion made adjustable .to vary the carrying capacity thereof, which is preferably done, as shown, by mounting a plate 21 replaceably and adjustably with a slot 22 Vand bolt 23 on the upturned outer flan e 20 of said bar. The bar 20 is also detac ably mounted on the screen, preferably by fastening it with bolts 24 on outwardly turned ends 25 of two orfmore re-enforcing bands 26 which extend circumferentiallyfof said screen.

The-deflecting and dischar e means include a deflecting member or ar 27 which is rmounted longitudinally along the periphery of the screen and rearward of each elevating member 20, said members 20 and 27 being spaced apart providing a discharge opening o-r slot 28 for discharging the material29 from the member 20 over` the member 27, and outward beyond the container, as shown in dotted lines in Fig. 2. The deflecting members 27 are preferably fastened replaceably with bolts 30, on the outwardly turned ends 25 of bands 26.

The construction is soarranged that each re-enforcing band has an out-turned end 25 for attachment of the delecting member 27 landv a longer out-turned end 25 for attachment of the spaced elevating member 20, whether only one set of-such co-operating, elevating and deflecting members are used along with one continuous band 26, or whether two sets withJ two semi-circular bands 26, or whether more than two sets of members and bands are used.

In this form of construction the members or bars 27 are extended beyond the gend bands 26 and the screen and provide end portions 27 which act as means for removing from the container l0 uns'c'reened and oversized material which is issued from the open discharge end of the rotary screen.y

The modified form illustrated in Figs. 3 to 5, inclusive, comprises a liquid container 10, as in the preceding form, for receiving Water or fany .suitable cleaning riluid, and rollers .31are mounted :in bearings 32 -on one end .fof the :container and in similar bearings 32 fastened in a notch 33 at -the other end vof said container; Therollersare `preferably Aflanged to engage bearing bands 34 and 34 on fthenecks or trunnions 35 and 35 fastened lon the fend members .36.' and 36 which are .suitably fastened onthercylindricalzscreen 37 as with flanges 38, the device thus rotatingon such rollersl at .the desiredzslant or inclination. 'A sprocketgear 39 orrsimilar means is mounted on the outer end of trunnion 35 for application of fthe driving power.

.Several screens of various mesh may also beaised in this form and aligned axially, the screen 37 of the linest mesh being placed in the 'receiving end. The elevating members cr bars 40have plates 4l adjustably and replaceably mounted withsuitable slots 42 and bolts .43 on their outer flanges 40, said bars being removably fastened, as with bolts 44, lto the outwardly-turned ends 45 ofthe reenforcing bands 46, and deflecting members 47 are Vfastened with suitable bolts on the outwardly-turned ends 45 of said bands 46, ksaid member 40 being spaced from.member .47to provideva discharge opening 48, as in the preceding form. 1

ln this form of construction curved plates 50 are mounted in the discharge end o fithe screen for moving :the oversized and unscreened material out vthrough the central discharge opening 5l formed in trunnion 35.

In both forms of the invention the bearings are arranged on the fluid container to mount the cylindrical screen at a `suitable angle or inclination, and water or the-desired cleaning'fluid is placed in the container lo substantially the line F indicated in the drawings. The material to bescreened and Washed, such as sand or the like, is then en- Atered through, `the open :upper end or `throughthe receiving trunnion and the cylindrical screen Iis rotated, with ithe :lower part thereof operating in the fluid, and the contained sand or material being valso mainly submerged under the level of said fiuid and being thus simultaneously screened and cleaned. The elevating members thereupon carry the screened andcleaned Sandor material upwardly v andv finally `drop it 1hrough the provided discharge slot or 'space .are used, .the rmaterial "is graded' according to in'e'ess, "simultaneously and automatically .discharged and deposited outside of the conv tainer in the respective positions opposite the :screens `of fthe various mesh, while the oversized and unscreened material is discharged and deposited beyond thefd'isch'arge end .of-the screen. I

While :I have illustrated and described the vpreferred .form of construction Vfor carrying my :invention into eeet, this is ca pable vof variation and modification Without departing Vfrom :the spirit of lthe. invention. l, therefore, do :not wish to be limited to the precisedetai'ls of construction set forth, but desire to availmyself off-such variations and n'iodilicatio'ns as-'come Lwithin the scope -of the appended fclaims.

Having .described my invention, what I claim fas new vand f desire to secure by Letters .Patent :is i

l. yA fscreeningfdevice comprisingfa rotary cylindrical screen having mea-ns mounted longitudinally 1 on the outside 'of #said screen to elevate materiahmeans adjustably mounted onthe outer edge of saidrelevatingmeans to-vary the :capacity thereof, and deflecting means .mounted 'rearward of said elevating means to.rdischa'rge the Velevated material.

2. A screening device comprising :a cylindrical screen,1bar`s detachably mounted longitudinally alongthe outside-of said tscreen to 4rotate ftherewith, .and fan adjustable and :replaceable portion Vprovided atithe outer edge :offeach vbar :for :varying the vcarrying capacity f thereof.

3. A s'screening 'device-comprising :a Vcylindrical screen, re-'en'forcing means including rsectional members mounted 'around the periphery ofsaid screen, anelevatingmember mounted on the outwardly turned end `of l each sectional member, and a deflecting member mounted4 on an out-rturned :flange at the other end of each sectional f member, adjacent to the elevating vmember which is mounted on the preceding section-al member.

4. A screening device comprising a 'cylin- Idrical screen, 4re-,enforcing means including sectional bands Vmounted circumferentially on said screen, an elevating bar mounted on one Aend .of each sectional band, means ad- .justably mounted on i. the. outer part of said bar for adjusting its capacity, and adefiect ing bar mounted on the other end of each `sectional y band opposite `to .the elevating band, there being la deflecting bar adjacent and rearward of each elevating bar.

5. Ascreenlng devicecomprismg a rotary .mechanism containing a f plurality of. cylindricalscreens of varying mesh alignedaxiah lv, a, pluralityl of 11e-enforcing bandsl mountu lao ed circumferenti ally of said screen, elevating means with adjustable outer portions mounted on said bands, and deflect-ing means mounted on said bands to co-operate with said elevating means.

6. A screening device comprising in combination, a liquid, container, a rotary screen operating in said liquid and having a shaft journalled on said container, means mounted longitudinally 'on said screen for elevat-l ing and defiecting material from said container, and integral means extending from the last said means for removing' unscreened oversized material from said container.

7. A screening device comprising in combination, a liquid container, a rotary screen operating in said liquid and having a shaft journalled longitudinally on said screen for elevating on said container, bars mountedV screened and Washed material from said container, bars on said screen for dei'lecting said material beyond said container, and means extending beyond said screen for removing the unscreened oversized material from said container.

8. A screening device comprising a rotary cylindrical screen, bars extending laterally from the periphery of said screen and spaced therefrom, laterally extending bars mounted rearward of said spaces to co-operate with the iirst bars and deflect material, said second bars extending beyond the screen, and mea-ns for rotatably mounting said screen in an inclined position.

In testimony whereof I have signed my name to this specification.

oURT G. KNoBLAUoH.

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