US1575601A - Screening device - Google Patents

Description

March 2`, 192s. 1,575,601 y C. G. KNOBLAUCH SCREENINGl DEVICE Original Filed Nov. 26, 1923 Patented Mar. 2, 1926.

UNITEDk sTATEs 1,575,6oi PATENT OFFICE.

CURT G. KNOBLAUCH, 0F lCHICAGO, ILLINOIS,ASSIGNOR, BY MESNE ASSIGNMENTS, T0 GOODWIN` GARST, OF LAKE BLUFF, ILLINOIS.

i SCREENING DEVICE.

original application inea' Npvemper 26,1923, serial No. 677,132. Divided and this application mea y [o all y'whom it may concern.'

Be it known that I, CURT G. KNoLAUcH, a citizen of the United States,and a resident of the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Screening Devices, of which the following is a specification.

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

A11 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 isto provide such a device with means 011 thescreening mechanism and movable therewith for elevating, deflecting and discharging the screened material.

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

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 mate-rial in said liquid, and having means on its periphery for elevating and deflecting the screened and washed material out of the container. y

Other objects will appear hereinafter.

This is a division'of applicants prior application for screening devices, Serial No. 677,132, vfiled November 26, 192 i' The invention consists in the combinations and arrangements of parts hereinafter described and claimed. y

The invention will be best understood by reference to the accompanying drawings forming a part of this specification, and `in which, 1

Fig. 1 shows my invention partly inside elevation and partly in section; and

Figs. 2 and 3 are substantially vertical cross sections taken respectively on lines 2-2 and 3-3 of Fig. 1.

The form of invention illustrated in this application comprises a liquid container for receiving water or any suitable cleaning iuid, and rollers 31 are mounted in bearings 32 on one end of the container February 16, 1925. Serial No. 9,377.

and in similar bearings '32 fastened in a notch 33 at the other end of said container. The rollers are preferably fianged to engage bearing bands 34 and 34p on the necks or trunnions 35 and 35 fastened on the end members 36 and 36 which are suitably fastened on the cylindricalscreen 37, as with fianges 38, the device thus rotating on such rollers at the desired slant or inclination. A sprocket gear 39 or similar means is mounted on the outer end of trunnion35 for application of the driving power.

Several screens of various mesh may also be used, saidscreens being axially alined and the screen 37 of the finest mesh being placed in the receiving end. The elevating members or bars 4.0 have plates 11 adj ustably and replaceably mounted with suitable slots 4:2 and bolts 13 on their outer flanges 40', said bars being` removably fastened, as with bolts Tl-4, to the outwardlyeturned ends 45 of the re-enforcing bands46, and deilecting members 47 are fastened with suitable bolts on the outwardly-turned ends 15 of said bands 46, said member 40 being spaced from member 47 to provide a vdischarge opening 48.

Curved plates 50 are mounted in the discharge end of the screen for moving the oversized and unscreened material out through thel central discharge opening 51 formed in trunnion 35, and in gear 39.

The bearings are arranged'on the liquid container 30 to mount; the cylindrical screen at a. suitable angle or inclination, andwater or the desired cleaning fluid is placed in the container to substantially the line F indicated in the drawings. The material to be screened and washed, such as sand or the like, is then entered through the open upper end or through the receiving trunnion and the cylindrical screen is rotated, with vthe lower part thereof operating in the fiuid, and the 'contained sand or material being also mainly submerged under the level of said fluid and being thus simultaneously screened and cleaned. The elevatingmembers thereupon carryv the screened and cleaned sand or material upwardly and finally drop it through the provided dischar e slot or space on to the defiecting mem ers which deflect such material and discharge it beyond the container 30, as clearly indicated in Fig. 2. And where screens of various mesh or gauge are used, the material is graded according to ineness, simultaneously and automatically discharged and deposited outside of the container in the respective positions opposite the Screens oi the various mesh, while the oversized and unscreened material is discharged and deposited beyond the discharge end of the screen.

lVhile I have illustrated and described the preterred torni of construction for carrying my invention into e'l'lect, this is capable of variation and modification without departing from the spirit of the invention. I, therefore, do not wish to be limited to the precise details ol construction set forth, but desire to avail myselt ot such variations and modiiications as come within the scope ot the appended claims.

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A screening device comprising in combination a liquid container, a rotary screen operating in the liquid in said container and having a trunnion at each end, means extending laterally outward from said screen 'for elevating and deiecting material from said container, and members adjustably mounted on said elevating means for adjusting said elevating means for capacity.

2. A screening device comprising `in combination' a. liquid container, a rotary screen operating in the liquid in said container and having a trunnion at each end, means extending laterally outward from said screen for elevating and detlecting material radially from said container, means adjust-ably mounted on said elevating means for adjusting the same for capacity, and curved members in the end of said screen for discharging unsereened material axially through the adjacent trunnion.

3. A screening device comprising in combination, a liquid container, a rotary screen operating in the liquid in said container and being supported at each end on said container, means extending laterally from the periphery of said screen for elevating material from said container, and including means at the outer end of said elevating means adjustable to vary the capacity thereof, and detlecting means mounted rearward of said elevating means to discharge the elevated material beyond said container.

4, A screening device comprising in combination a liquid container, a rotary screen operating in the liquid in said container and having a support at each end, reenforcing members on the periphery of said screen, an elevating member mounted on one outwardly turned end of said reenforcing mcmbers, and a deiiecting member mounted on the other end of said reenforcing members.

5. A screening ldevice comprising a cylindrical screen, reenforcing bands mounted circumferentially of said screen, an elevating bar mounted on one end of said bands, means adjustably mounted. on the outer part ol' said bar to vary the carrying capacity thereof, and a de'lecting member mounted on the other end of said bands.

6. A screening device comprising in combination a liquid container, a rotary screen operating in the liquid in said container and being supported at each end on said container, reenlorcing means on said screen,

elevating bars mounted on said reentorcing i means and carrying adjustable means to adjust said bars for capacity, detlecting means vmounted on said reenforcing means rearward of said elevating means, for defleeting material outward of said container, land means in the end of said screen for discharging lmscreened material outward of said container.

7. A screening device comprising in combination, a liquid container, a rotary screen operating in said container and having a trunnion with a bearing band at each end, roller means on said container engaging said bands for Arotatably supporting said device, spaced longitudinal bars mounted on the periphery of said screen for elevating and deflecting material beyond said container, and a driving gear fastened on the discharge trunnion for operating the device.

8. A screening device comprising in combination, a liquid container, a rotary screen loperating in said container and having a trunnion with a bearing band at each end, roller means on said container engaging said bands for rotatably supporting said device, spaced longitudinal bars mounted on the periphery of said screen for elevating and deliecting material beyond said container, a driving gear fastened on the discharge trunnion, and spiral blades in the discharge end of said screen for discharging the unscreened and oversized material through said discharge trunnion and driving gear.

In testimony whereof I have signed my name'to this specication.

CURT e. KNoBLAUoH.

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