US1131081A - Gravity-trap dry separator. - Google Patents

Description

D. F. PLATNBR.

GRAVITY TRAP DRY SBPARATOR.

APPLICATION FILED 1111.11.17, 1914.

1,1 31,081. Patented Mar. 9, 1915.

WITNESSES: INVEN'LOR TIE MORRIS PETERS CO., PHOTD-LITHO. WASHINGTUN. Dnc.

.UNITED sT-ATEsPATENT onirica.

DAVID F. PLAINERQOF MONTERDY, CALIFORNIA, AssIeNon 0F ONE-FOURTH 'roy ERNEST MICHAELIS AND oNE-roURTH Toc. N. TIDDITs,v or MONTEREY, CALI- FQRNIA GRAvITY-TRAP DRY sEPAnAToR.

Specification of Letters Patent. i Patented Blair. 9, 1915.

Appiieation med March 17, 1914. seriaiNo. 825,272'.

T0 att whom it may concern Be it known that I, DAVID F. PLATNER, a

citizen of the United States, residing atl Monterey, in the county of Monterey and State of California, have invented new land useful Improvements in Gravity-Trap Dry Separatore, of which theffollowing is a specification.

-This invention relates to machines for separating gold and other metalliferous valuesy for crushed ores, gravel and the like,V

by dry process, the special object of the invention being to provide a dry-separator and concentrator of this character which is simple, efficient, of large capacity, reversible and adjustable, all as will appear hereinafter.

Thel invention consists of ,the` parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which-V Figure 1 is a longitudinal section of the Vinvention on the line X-X, Fig. 3. Fig. 2

is a fragmentary Vplan view, with parts broken away. Fig. 3 is an endelevation. Fig. 4 is a sectional view of ariflle. Fig. 5 is a detail of a staple. Y A represents a gravity trap box pivotally mountedcentrally, as at 2, on flexible standards 3 3 secured to a rigid frame or jarring posts 4--4; the box A being adapted to be given an oscillatingor reciprocating lateral movement by suitable means, as a lever 5, linked to the standardV 3 at one end and linkedly connected to a crank 6 at the other end. The crank 6 is `rotated in any suitable manner so as to rock the lever 5 to shake the gravity box A from side to side, and jar it against the jarring posts 4 4. Manifestly any other means maybe employed to effect this necessary jar or vibration of the box.

The Vtop of the box is covered with a screen 7 and an intermediate screen 8 is disposed thereunder. The bottom of the box is provided with a special form of transversely extending rillles 9 which are con-y structed and arranged as shown in Figs. 1

and 4. These riles 9 are each composed of a sheet-metal plate bent to form a rectangular trough with a flat bottom and straight` shown at b and theportion b having an upwardly projecting vertical lip c. The riies are disposed on each side of thecenter of ward the center, as shown in'Fig. 1. The lips c terminate a short distance below the lower screen l8. The bottom of the box A, between-,the vriiiieplates 9, is studded with the box, 4with the parts b-Gextending tostaples 10, Figs. 2 and 5, which are so staggered and otherwise disposed in `relation to eachother as to. thoroughly rake the-materials being treated vertically and horizontally, thus preventing the materials packing between the yriflles in seams or strata.v

Materialto be treated is fed centrally, at 13, and the box A may be tilted andl supported atY any desired angle in either direction on the pivotal bearing 2, being retained in any desired position by suitable means, as 1 the adjustable brackets 11, Vvupon. which either end of the' toprmay be supported;

rollers 12 on thebox A being adapted to bear on the brackets or seats 11. Thisrarrangement permits of the floor of the box A being inclined at any desired pitchV in either directionand permits the box to be vibrated while iny any position. y,By removing i. the bracketsV 11 fromtheir support, ythe box A may be inverted when desired, and whenV cleaning. Each end of the box A is .open so pas to allow the lighter' materials or gangue which pass'over the riflles 9 to be discharged when the box is in inclined position. The boxV is divided atits .center by a partition 14 so that when inclined, only the Y waste material or gangue runningover the riles Von the lower half of the box will be allowed to escape; the trapped material and values on the upper half being confined Vwithin and between the riiiles until the box is later inverted in cleaning up. Y

In operation, the material Vto be treated is delivered to theV screen 7 in any desired manner, as through a hopper 13, and Von passing through the screens 7e-8 is deposited between the riilles 9 and is subjected to jarring action whichV causes the heavier or mineral particles to settle to the bottom of the-.box A, while the lighter material or angue passes over the riflies to be discharge when the box is inclined, as beforeV described, the

values remaining between the upright platesV of the riies 9, to be removed for further treatment, as desired. y v

The invention is shown in the drawings as a unit,.but it is obvious that a series ofi boxes A. can be mounted side by side, either onone or separate pivots, and be subjected to jarring Vmotion simultaneously or independently.

F or this deviceI claim the following spe` tion of the ritfie placed transversely in the I claim and desire to secure by 'Letters Pat-l box dischargesthe Gangue matter, and Vdeposits the gold or other Vmetalliierous values into the storage trap of the gravity' trap4 boxes.`

The gravitytrap box may be revolved on its pivot 2 for cleaning up purposes. When in operation it isl checked and held in place by the series of stop guides 11. and roller arms l2 projecting from the sideof the box.

The Wire precipitators l0, as shown in.

Fig. 2, prevent the compactingof the material distributed. into the boxes,l and help precipitateithe gold carried therein.

v Having thus described my invention, what ent isl.' In a concentrator, a box, a series of spaced U-shaped ritiles 'having theirV bases secured to the box bottom, one of the sides of the riies'being extended outwardly and.`

thenvu'pwardly to form upper L-shaped partsl which extend toward the center of the box,

and staples in the-box bottom `some of which underlie the L-shaped parts of the ritils.;

2. In a concentrator, a.fra1ne,a box mounted. iinl 'the' frame in spaced relation'f t0 the sides thereof, lexible standards connected to the frame and to the center of the box for pivotally. supportingl the latter, means -to I novablyl and adjustably engage the ends of the box to permit the .latter tol be set at varyinginclinations by movingthe i box about its pivotal points, and means connected to one of the standards for reciprocating same.`

In a concentrator, a mounted in the frame in spaced relation to the sides thereof, iiexible standards connect-1 ed to the frame at their `lower ends andA to the center of the box at their upper ends so i as to allow the box to be tilted at its ends with respect to the standards and about `its l 60 the standards, and means to slidably engage: the box ends upon the angle of inclination pivotal points, means to yreciprocate one ofof same being. varied.I

el. In a concentrator, a frame, a box in the frame spaced therefrom, means to movably support the box to allow same to be adjustably tilted or inclined relative to the sup-i ort means to^reci rocate the boxand:

means to movably support'the box in its ad-i justed` inclined position.

In testimonywhereof I have hereunto sat1 my hand in the presence of twosubscribing witnesses.

l DAVID F. PLA'INER.

Witnesses F. W. Sanering, R. I-I. WILLEY.

Copies of this patent. may be obtained for Vfive cents each, by addressing the Commissonerof Patientin.` Washington, D. C.

Images