US935216A - Ore-screen. - Google Patents

Ore-screen. Download PDF

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Publication number
US935216A
US935216A US45221808A US1908452218A US935216A US 935216 A US935216 A US 935216A US 45221808 A US45221808 A US 45221808A US 1908452218 A US1908452218 A US 1908452218A US 935216 A US935216 A US 935216A
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United States
Prior art keywords
screen
ore
magnet
frame
bars
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Expired - Lifetime
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US45221808A
Inventor
Archie B Meiklejohn
Jesse R Villars
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Individual
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Priority to US45221808A priority Critical patent/US935216A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/34—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
    • B07B1/343—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen with mechanical drive elements other than electromagnets

Definitions

  • This invention relates to ore screens,'and ⁇ one of the principal objects of theinven-tion giving a vibratory motion to the screen.
  • Another object of the invention is to provide a screen mounted on springs and yto ar range an electro-magnet-in proximity to a contact plate secured to vthe bottom ofthe screen, whereby an intermittent current maybe employed to alternately energize and deenergize the magnet to attract the plate and vibrate the screen and 'to release the same 4 alternately.
  • Figure l is a front to rear'vertical section-taken centrally through the screen.
  • Fig. 2 is a rear elevation ofvthescreen.y Fig. 3 is a transverse vertical section. Fig. 41s aper-v spective' view 'ofthe supporting ring for the 5 is a perspective view of the magnet. Fig. contact plate.
  • keepers y being provided with set screwsl 20 for securing the trunnions 18 in adjusted positions.
  • Supported within the ring 17 is a magnet 21, a se't screw 22 extending through the ring 17 andbearing against the magnet to hold it in place.
  • a core 23 extends through the Vmagnet, and .the conductors 24 leadV from the' magnet .to asuitable source of electrical sup# -ply ,'providingfan alternate or direct current.
  • the operation ⁇ offour invention may be brieiy described as follows
  • the ore to be screened may either be wet or dry, and the screen is vibratedby energizing and dener-l ⁇ gizing the magnet yto draw the plate 16 to the coreagainst the tension ofthe springs Sand 'to' release thel same and allow the screen to rock and move vertically.
  • the screen is vibrated by the action ot' the alternating cur. 'rent which ⁇ alternately attracts and repels.
  • the herein described ore screen compris. ing a frame,.inclined bars connected to said framefa screen frame, elliptical springs con# nectedto said bars and to said screen frame, a ring provided with projecting trunnions, arms connectedvto the frame to which said trunnion's areA journaled, an electrofmagnet supported withlin said ring and provided with a core, ay contact plate on the bottom of said screen frame, and conductors leading to a sourceof eletrical supply for magnetizing and demagnetizing said magnet and core.

Description

A. B. MEIKLEJOHN (Y: J. R. VILLARS.
ORE SCREEN. APPLICATION FILED SEPT. 9, 1908.
935,2 l 6 Patented Sept. 28, 1909.
ljg.
- essaie.
- is -to provide novel and efficient means vforI miran erwies 'Parana oai/rica.
ARCHIE 15. MIKLEJOHN rAND J' ESSE R. IVILLARS, OF BUTTE, MONTANA.
cnn-SCREEN.
To all 'whom it may concern:
y Be it'known that'we, ARCHIE B. MEIKLE- .ioHN .and Jnssn R.. VILLARS, citizens of the United States of America, residing at Butte, in the county of Silverbow and.' State .of
`lyllontana, have inventednew and useful 1mprovements lin Ore- Screens, of which the following is a specification. l
This inventionrelates to ore screens,'and` one of the principal objects of theinven-tion giving a vibratory motion to the screen.
Another object of the invention is to provide a screen mounted on springs and yto ar range an electro-magnet-in proximity to a contact plate secured to vthe bottom ofthe screen, whereby an intermittent current maybe employed to alternately energize and deenergize the magnet to attract the plate and vibrate the screen and 'to release the same 4 alternately.
These and other objectsr be attained by'meansfof the constriction illustrated in,
the accompanyingA drawing, in which,- v
Figure l is a front to rear'vertical section-taken centrally through the screen. Fig.
2 is a rear elevation ofvthescreen.y Fig. 3 is a transverse vertical section. Fig. 41s aper-v spective' view 'ofthe supporting ring for the 5 is a perspective view of the magnet. Fig. contact plate.
Referring .designates the short front legs ofthe frame,
and 2 are the longer rear legsl or sup o rtf said legs being connected by-side bars., lan
cross bars 4. Supported upon'the side bars 3 is a.pair of cross bars, and lsupported upon the cross 1bars'5 are the diverging magnet-supporting arms 6. Inclined bars 7 connected at one` oftheirends tothe rear legs l2 near their upper ends are secured `at their lower lends tothe front legs ,lvnear their lower ends. Mounted on the bars 7 are the elliptical springs 8, said springsv being connected at their 4upper .sides to the screen frame 9, said frame having an inclined bottom 10 and provided withpa rabbeted upper edge for receiving the screen 11, said screen bemg secured to a rectangular'frame 12 and provided with suitable means 13 for securing said screen to the frame 9. IAn oversize` discharge opening 14 vis lprovided above the to the drawing, the. numeral 1 vSpecification of Letters Patent. Patented' Sept. 2S, QQ). Application filed September 9, 1908. Serial No. 452,218.
the upper ends of the arms 6, said keepers y being provided with set screwsl 20 for securing the trunnions 18 in adjusted positions. Supported within the ring 17 is a magnet 21, a se't screw 22 extending through the ring 17 andbearing against the magnet to hold it in place. A core 23 extends through the Vmagnet, and .the conductors 24 leadV from the' magnet .to asuitable source of electrical sup# -ply ,'providingfan alternate or direct current.
'The operation `offour invention may be brieiy described as follows The ore to be screened may either be wet or dry, and the screen is vibratedby energizing and dener-l `gizing the magnet yto draw the plate 16 to the coreagainst the tension ofthe springs Sand 'to' release thel same and allow the screen to rock and move vertically.` The screen is vibrated by the action ot' the alternating cur. 'rent which `alternately attracts and repels.
lthe plate causing rapid vibration.
-Our invention is'of comparatively simple constructioln'can be' installed at slight "cost, .operates efficiently and quickly fpr its purl pose and' gives superior results.
.Weclaimzi The herein described ore screen compris. ing a frame,.inclined bars connected to said framefa screen frame, elliptical springs con# nectedto said bars and to said screen frame, a ring provided with projecting trunnions, arms connectedvto the frame to which said trunnion's areA journaled, an electrofmagnet supported withlin said ring and provided with a core, ay contact plate on the bottom of said screen frame, and conductors leading to a sourceof eletrical supply for magnetizing and demagnetizing said magnet and core.
In-testimony whereof wer aiiiX our signatures in presence of two witnesses.
i Witnesses:
FRANK WEST, Jr., L. F. Boron.
US45221808A 1908-09-09 1908-09-09 Ore-screen. Expired - Lifetime US935216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US45221808A US935216A (en) 1908-09-09 1908-09-09 Ore-screen.

Applications Claiming Priority (1)

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US45221808A US935216A (en) 1908-09-09 1908-09-09 Ore-screen.

Publications (1)

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US935216A true US935216A (en) 1909-09-28

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626053A (en) * 1947-08-05 1953-01-20 Simpson Herbert Corp Molders station sand screen
US3630356A (en) * 1969-05-02 1971-12-28 Max Isaacson Vibrating screen with spring beam
US4250025A (en) * 1978-04-28 1981-02-10 Davy-Loewy Limited Sieving device for magnetically susceptible particles
US20080149537A1 (en) * 2006-12-21 2008-06-26 M-I Llc Electromagnetic separation for shakers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626053A (en) * 1947-08-05 1953-01-20 Simpson Herbert Corp Molders station sand screen
US3630356A (en) * 1969-05-02 1971-12-28 Max Isaacson Vibrating screen with spring beam
US4250025A (en) * 1978-04-28 1981-02-10 Davy-Loewy Limited Sieving device for magnetically susceptible particles
US20080149537A1 (en) * 2006-12-21 2008-06-26 M-I Llc Electromagnetic separation for shakers
US9033156B2 (en) * 2006-12-21 2015-05-19 M-I L.L.C. Electromagnetic separation for shakers

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