US2607489A

US2607489A - Sand conditioning apparatus

Info

Publication number: US2607489A
Application number: US141964A
Authority: US
Inventors: Seeling John Herman
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-02-02
Filing date: 1950-02-02
Publication date: 1952-08-19
Anticipated expiration: 1969-08-19

Description

Aug, 8, 1952 J. H. SEELING 2,607,439

SAND CONDITIONING APPARATUS Filed Feb. 2, 1950 2' SHEETS-SHEET 1 J 11.15 eezirg INVENTOR I I v I I I ATTORNEYS Aug. 19, 1952 .1. H. SEELING SANDCONDITIONING APPARATUS 2 Sl-lEETS-SHEET 2 Filed Feb. 2, 1950 Jeelz'n g INVENTOR ATTORNEYS UNITED sTArEs Patented Aug. 19,1952 a r 2,607,489 SAND CONDITIONING APPARATUS f 1 John Herman Seeling, La Crsse,:Wis. Application February 2, 1950, Serial No. iciaims. 01. 209262) v a This invention-relates tosand conditioning ap- Rigidly secured to the 'undersideS of thechanparatus, adapted particularly-for useinfoundries nel members 1, and extending, transversely thereor similar establishments, but equally serviceable between, is the inclined; scrap slide lfl of plate in the conditioning of sand for other p'iirposesmaterial, that defines Va steeply inclined scrap An object of the invention isto provide an imslide the inlet end of whichislat the upper end of proved sand conditioning apparatus wherein sand said slide, the outlet endof 'the slide being discan be dropped into a hopper, and wherein said posed at the lower end thereoli so that scrap fed sand drops to a power-driven impeller of the through the inlet end of the slide'will'gravitate conveyor type, from one end of which the sand swiftly therethrough for discharge at the bottom is thrown with great force through a screen, end of the slide.

thus to effectively screen the sand while providing The scrap slide? I0 is integrally formed t its for the discharge by gravity of the scrap remainupper end with anlup'wardly' and backwardly ing after the operation. curved wall I I the upper portions of which is With the foregoing and other objectsin view formed with a large openingin which; is mounted which will appear as the description proceeds, the a screen I2. Y invention consists of certain novel details of con- Mounted upon the channel members 1 adjacent struction and combinations of parts, hereinafter the upper ends thereof are the bearings l3 in more fully described and pointed out in the which are 'journaled a, transversely extending claims, it being understood that changes may be roller shaft l4 having mountedtliereon for rota made in the construction and arrangement of tion by said shaft, the 'ro11er 5 u1 -i mg the belt parts without departing from the spirit of the IS on which are' provided spaced cleats .l'L's aid invention as claimed. belt being disposed parallel to andspaced a suit- Referring to the drawings: able distance abovethe inclinedscrap slide I ll,

Fig. 1 is a vertical section takenlongitudinally with the upper course of thebelt being located through apparatus formed in accordance with below the upper end of said wallll so that the the invention. belt will feed sand to be conditioned into .the area Fig.2is atopplanview. of the screen 12. I f Fig. 3 is an enlarged section on line 3-3 of The bottom end of the endless belt leis passed Fig. 1. around the idler roller I8 mounted upon the shaft Fig. 4 is an enlarged section on line 4-4 of I9 journaled in the bearings 2i! that are mounted Fig. 1. upon the bottom ends of thechannelmembers 1. Referring to the drawings in detail, I provide For the purpose of driving the belt, I provide a wheeled supporting frame including the horithe motor 2| which can be mounted upon a platzontal longitudinally extending parallel side rails form extended transversely between and sup I of angle iron or other suitable bar stock, these ported upon the lower rails l, there being secured being rigidly connected at one end by the cross to the shaft of the motor a small drive pulley 22 bar 2 of angle iron or other suitable material. around which passes the belt23 that also passes Adjacent their o-ther'ends, the'side rails l suparound the larger driven pulley 24 mounted upon port bearings 3 in which are journaled the opand rotating the shaft HI posite ends of the axle 4 on the ends of which are For the purpose of adjustably tightening the mounted the wheels 5. belt I6, the bearings 20 are adjustably positioned, Rigidly secured to the respective first-named and can be repositioned by means of adjusting ends of the side rails l, and extending upwardly screws 25 mounted, upon' the channelmembers therefrom, at a slight angle from the perpendicu- 1 adjacent said bearings 20." v I lar, are the inclined supports 6 of suitable bar A plurality of upstanding supports Zliisrigidly stock, to the upper ends of which are rigidly consecured to .the respective'jchannel members 1 and nected the upper ends of steeply inclined upper extends upwardly from said channel members, side rails I of channel iron material, which, as these supports 26 being rigidly secured to and readily seen from Fig. l, are inclined at a steep su porting a box-like hopper 21 which is angle, e IOWBI s of Said pp Side rails 7 mounted an inclined deflection board 28 which rebeing rigidly connected to the lower side rails lstricts the opening at the'bottom of the hopper A front cover plate *8 extends across o e d of to a substantially narrow opening positioned imthe machine, between the angularly extend mediately above the lower end .of the belt l6, as supports 6, while one side of the frame can be readilyseenfromFig,1

covered by a side cover plate '9. As seen from Fig. 1, the upper end of the front From what has been so far described, it will wall ll formed upon the scrap slide l ll terminates be seen that I provide a rollably mounted supshort of the front wall of the hopper 21, so as porting frame for my apparatus, the upper side to provide a spacethrough which can swing a of the frame, defined by the'rails 1, being steeply hinged baille, there 'being provided piv.ot bolts inclined for a purpose to become apparent hsre- 50 29 passed through ears 3fl'formed upon the front inafter. 7 wall of the hopper, the pivot bolts pivotally connecting tosaid hopper the bafiie 3| provided with 1 the weight 32.

Secured to the respective channel members 7 and extending between the belt rollers is the plate 33 disposed just above the bottom flight of the conveyor belt, this plate being formed at oppo site ends with the upstanding end walls 34 and 35 respectively covering the surfaces of the respective rollers. Supporting the entire apparatus in proper position for use is the stand 36 connected to the cross bar 2. Thiscooperates with the wheels in supporting the apparatus in the 1 position illustrated in Fig. 1. 7 Considering now the manner of use of the sand conditioning apparatus, itwill be noted that the apparatus is readilyportable, and can be rolled upon the wheels 5'to any location. After the apparatus has been-positioned at the desiredlocation, sand is shoveled or otherwise fed into from said upper end of the belt with great force against the screen l2, with the conditioned sand passing through said screen, while the scrap remaining continues to travel along the curved surface of the 'front-wal1 H, so that it is fed with considerable velocity through the inlet end of the downwardly inclined scrap slide 6, being discharged at the lower end of said. slide. 1

In this connection,,the hinged baiile 34 extends downwardly across the path of the sand to be conditioned, so as to provide a yieldable leveling means for said sand located immediately in advance of the point at which the sand is impelled at high speed from the conveyor. The baffle '31, as will beappreciated, will yield as necessary to the passage of large objects, by reason of its weighted hinged arrangement. A considerable amount of sand is adapted to be conditioned in this manner, and it will be appre ciated that the scrap discharged from the bottom end of the scrap slide can if desired be fed once again through the hopper 27, to condition the sand still further.

What is claimed is: r a 1. Sand conditioning apparatus including a supporting frame the upper surface of which, is inclined, a scrap slide mounted upon said inclined upper-surface and including an upwardly and backwardly curved front wall, a screen in said front wall of the scrap slide, an impeller belt mounted above the scrap slide and positioned to discharge material through'said screen, a hopper mountedupon the frame abovesaidbelt, for feeding material-to the belt, and means for driving the belt at high speed, thus to cause material to be conditioned to be carried upwardly by said belt and discharged :with velocity against said screen, whereby 1 conditioned sand will pass through the screen and scrap will gravitate for discharge through the inclined scrap slide, said screen being disposed wholly out of the path of said gravitating scrap material, whereby to limit passage through the screen to material discharged upwardly thereagainst. j

2. Sand conditioning apparatus including an inclined'supporting frame,an inclined scrap slide ounted thereon, a screen m u t h upper end of said scrap slide, an endless cleated conveyor belt mounted upon the frame above said slide and inclined correspondingly to the slide,

a hopper positioned to discharge material into the bottom end of the conveyor to be carried upwardly by the conveyor toward the screen, and means for driving the conveyor at high speed, thus to cause the material carried upwardly thereby to be impelled with substantial velocity against the screen, said screen being located to provide a deflection means for scrap denied passage through the screen, defiecting said scrap to the upper end of the inclined scrap slide, said screen being disposed wholly out of the path of said gravitating scrap material, whereby to limit passage through the screen to .material discharged upwardly thereagainst.

, 3. Sand conditioning apparatus comprising a wheeled supporting frame having a pair of spaced parallel steeply inclined upper side rails,

:a conveyor slide extending between and secured to said side rails, said slide comprising a solid plate covering the entire space between the side rails, an arcuate deflection wall integral with the upper end of said plate and inclined upwardly and backwardly from said upper end of the plate, said deflection wall having an opening of substantial size, a screen covering said opening and curved correspondingly to said wall, said screen comprising the upper portion of said deflection wall, the lower portion of said wall being imperforate and being formed as a curved extension of the screen, spaced conveyor rollers extending transversely between the rails and mounted upon said rails and positioned above said scrap slide, an endless cleated conveyor belt extending around said rollers and inclined correspondingly to and spaced above the scrap slide, means for driving said belt at high speed, and a hopper mounted upon the frame and having a discharge opening for feeding material to the conveyor belt at the bottom of the top flight of said conveyor belt, the upper end of said top flight of the conveyor belt being located in back of the screen so as to impel sand to be conditioned at high speed against said screen, scrap materialbeing deflected by the screen to the up per end of said inclined scrap slide, said screen terminating at its lower end above the path of material gravitating to said slide, whereby to limit passage through the screen to material impelled upwardly thereagainst.

, 4. Sandconditionin apparatus as in claim 3, and wherein said apparatus includes a hinged Weighted baflle mounted upon the hopper adjacent the upper end of said top flight of the conveyor belt, in the path of sand to be conditioned.

- JOHN HERMAN SEELING.

REFERENCES CITED Thefollowing references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 463,305 Hofi'man Nov. 17, 1891 773,928 Colvin -c Nov. 1, 1904 786,184 Benefield Mar. 28, 1905 1,333,127 Nall Mar. 9, 1920 2,260,095 Stevens Oct. 21, 1941 FOREIGN PATENTS Number Country Date 19,065 Switzerland Mar. 29, 1899 242,592 Germany Jan. 13, 1912