US1161945A - Concentrator. - Google Patents

Description

A. J. MAI ltn.

CONCENTRATOR.

APPLICATION FILED MAY 5. 1913.

Patented NOV. 30, 1915.

Mum 2652a 6% %m M ALBERT J. MATTER, OF PORTLAND, OREGON.

CONCENTBATOB.

Specification of Letters Patent.

Patented Nov. 30, 1915.

Application filed May 5, 1913. Serial No. 765,462.

1 '0 all whom it may concern:

Be it known that I, Annnirr J. Mama, a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented a new and useful Improvement in Concentrators, of which the following is a specification.

This invention relates to improvements in concentrators and has for its object a more thorough and uniform concentration of minerals than has heretofore been possible.

I attain this object by means of the improvements illustrated in the accompanying drawings in which;

Figure 1 is a sectional elevation. Fig. 2 shows a top view. Fig. 5-3 is a top view of the overflow basin. Fig. a is a top view of the glass retainer and receptacle holder.

Like reference numerals indicate similar parts throughout the several views.

Referring to the drawings, in Figs. 1 and 2 are shown a hopper l mounted in a frame 2 and carrying a water-discharge tube 9 mounted on brackets ti and provided with discharge orifices 11. A feed-pipe 10 is connected with discharge tube 9 at its upper end. Hopper 1 is provided with an opening 11 which may be closed or partially closed as desired by means of a valve 15 held in place by valve stem 8 which passes through water discharge tube 9 and may be raised or lowered by means of the screw hand-wheel 7. A sand-feed tube 16 having a llared opening 13 at the top and a converging opening at the bottom, is held below the hopper opening by means of suspension bars 12.

The parts just described constitute the sand hopper and feed-tubes.

A separating-tube 5 having an enlarged end 1 is so held in the frame that the enlarged end & surrounds the sand-feed tube 16 as shown in Fig. 1. An overflow basin 3 surrounds the separating tube near its upper end. The lower end of the separating tube 5 is provided with a flaring end surrounded by a water-distributing chamber connected by a pipe 17 with a constant-pressure water supply source. A valve 18 is provided for the purpose of regulating the flow of water through pipe 17. A baseplate 22 having an orifice 23, and a funnel 24 rovided with an opening 25 is held against the open bottom of the water chamber 20 and at a slight distance from the flared end of separating tube 5 so as to form a narrow water passage from the water chamber 20 to said separating tube 5, thus causing the water to enter said separating tube from all sides at a uniform pressure. A glass cylinder 28 is held below base-plate 22 by means of a holder 19 and bolts 27 which also hold the mineral receptacle 31 in place. A lower cutoif valve 26 is threaded at and screws into holder 19, passing through a tube and thence through the bottom of receptacle 31 and may be operated by means of a wrench applied to the squared end 35. To prevent leakage through the opening in tube 32, a cap 8-1 is provided as shown. A drain-pipe 30 is also provided in the receptacle 31 and is provided with a drain-cock 29.

In operation, water is admitted through valve 18 and pipe 17 to distributing chamber 20 and thence upward through passage 21 into separating tube 0. With draincock .29 closed, the water will fill receptacle 31 and then flow up through separating tube 5 and into overflow basin '3 from which it may be directed into another concentrator if desired. The hopper 1 is filled with goldbearing sand or tailings and valve 15 is then opened, allowing the sand to enter separating tube 5 by way of pipe 16. \Vhen wet sand is used water may be forced through pipe 10 and Water-discharge tube 9 and thence through orifices 11 so as to wash the sand into said separating tube. The valve 18 may now be regulated so that the water (lowing upward through separating tube 5 has just sutficient force to carry away the light sand but not enough force to lift the heavier particles of gold, thus allowing the gold or other precious metal to settle in the receptacle 31 which may be emptied when desired by removing the lower nuts of bolts 27. Before removing receptacle 31, cap 31 is removed, a wrench is applied to squared end of valve 26 so as to close opening 25. The water is then drained from the top of receptacle 31 through drainpipe 30. By properly regulating the low of water through valve 18 various degrees of concentration and separation may be secured.

What is claimed is:

A mineral separator comprising a sand feed pipe vertically disposed and having a tapering lower end; the intermediate portion being of tubular form, and a vertically disposed separating tube having a cylindric111 portion of its iffiper end so disposed 'as" dbi vnwn'rdin' the form of a tube having the to entirely surround said sand feed pipe, same cross sectional area as the water pusleuvmg an unobstructed water passage of sage aforementioned.

uniform cross section around the outside of Signed in the presence of two witnesses. said sand feed pipe, the lower end ofthe' ALBERT J. MATTER. cylindrical portion of said separating tube Witnesses:

converging at a point adjacent to the lower' HENMNG Hommsox,

end of said sand feed pipe and continuing J. H. Soon.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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