US965580A - Apparatus for extracting tin from tin scraps. - Google Patents

Description

APPLIUATION FILED NOV. 17, 190B.

' Patented July 26, 1910.

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APPLICATION FILED NOV. 17, 1908.

Patented July'zs, 1910.

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Specication of Letters Pate-nt.: Pgmj.lppnpbiggaijll July 2H, 191W,

.application filed November 17, 1908. Serial No." aGiSQSQ Be it known that l, Ennnson C. Hisawa,

a citizen' of the United States, residing at Bayonne, in the county of Hudson and State of New Jersey, have inventedA certain new l and useful llmprovements in Apparatus forv Extracting Tinvfrom Tin Scraps, of which l the following is a s ecication.

\ This invention re fates to an improved "ap- `params for extracting tin from` tin scraps, web. as old tin1 cansfor example, and has for its object a simple' and economical means for accomplishing the result.;

lin the following is described', in connection with'tlieaccompanying drawings, one

ing air openings' (not. shown) in its sides .and provided with a bearing 2 for shaft 3'.

4 is a ball bearing interposed between bearing 2 and collar 5. Shaft 3 is adapted to be driven by any 4suitable means (not shown). Gear wheel 6 is mounted-on shaft 3 andl is adapted' to engage gear Wheel 7 keyed to bearing 8` which supports basket 9. l0 is a plate' or table resting on the top of standard l and adapted to `support aV receptacle 11, preferably circular in form. Within receptacle 11 and concentric therewith is a Wall 12 so spaced from receptacle l1 as to leave an airl space'131between the two. A cover liis adaptedv rest on receptacle lland cover-the. top .fof the same.

15 is a false top adapted to leave an air space 16 between cover 14 andthe atmosphere. Air spaces 13 and-16 may be packed with some nonconducting material such as asbestos to confine as much heat as possible within the apparatus.

17 is a cover adapted to close a central aperture in cover-14 whereby access may be had to basket 9.

artly broken away; `and y .imperforate "Bearing 8l carrying gear i is supported from beneath by a suitable tbrust'bearing restingfon casting 18 fastened to the bottom ,of base or standard 1.

19 is a casting resting on casting-18 and adapted to support ,a suitable bronzebearing 20. The thrust Abearing comprises a flanged collar 21 fastened to a neck piece 22 which in'turn is fastened to gear 7. The

thrust bearingis. provided with the usual retective bearings to overcome friction. carin 8, gear 7 and the thrust bearing are central y apertured to permit'the passage of pipes 23, 24 and 25 which are respectively adapted to convey air, fuel and water into the apparatus. Pipe 23 is preferably flared at the top in order to throw the flame outward.` AThe air, fuel and water may be supplied under pressure from any suitable containers (not shown).

Pipe 25 is closed at the top and near the top is'provided with openings 26 to permit the water t0 be forced out and against the inner face of bearing 8. The space between bearing 8 and pipe 25 is closed at the top the water running out into the interior of base 1,*through pipes 27 between neck 22 and collar 2l. Pipe 28 `conducts this Waste Water or other liquid from the interior of base 1 to any suitable point.` Bearing 8 turns in a' suitable frictionbearing 29 sup ported from ring 30 on plate l0. Friction.

bearing29 is surrounded by a water jacket 31 to 4which Water is supplied under pressure from any suitable source through a pipe 3,2.

fOpenings 33 permit the Water to clrculate 3l. Pipe 36 is 'adapted -to convey oil from anysuitable supply to bearing 29 and preferably passes through pipe 35 in order that the oil in pipe 36 may be kept cool by the .r

Water in pipe 35.'

Basket 9 is provided With a centrally arranged combustion chamber 37, preferably in the form ofa truncated' coneas shown.'

The combustion chamber 37 is closed at the top by asuit-able cover'38 and is preferably Combustion chamber 37 is preferably flanged at the bottoni as at 39,

ribs 40 of` basket 9 being clamped between ange 39 and bearing 8. A space 4l is thus 25 in order to deflect the water through holes left between bearing `8 and lange'39 which from which thetin is to be removed.

is adapted to protect bearing 8 from the heat. Ribs 40 are surrounded by and sup port a suitable wire mesh 4l preferably he d in place by reinforcing strips 42.

Ribs 43, preferably the same 1n number as ribs 40, are adapted to .form a false bottom on which rests the bundles of tinV scrapAs cover 44 closes the top of basket 9.

45 is an opening through which the tin may be vdischarged from receptacle 11, A 46 is an oil hole for supplying oil to bearing 2.

47 is a protectingflange fastened to pipe 27 and to prevent it from escaping down into the lower bearings.

The operation o`f the apparatus is as follows: The covers 17, 88 and 44 being removed, the bundle of tin scraps is thrown into basket 9, resting on the false bottom formed by ribs 43. The air and the fuel supply, preferably `gas' under pressure, is

then admitted Yto the combustion chamber through pipes 28 and 24 respectively, 'and the water for cooling the bearings is turned on. The fuel is' then ignited and the lcovers replaced. The products of combustion escape from the combustion chamberl as by leakage. Poweris then applied to shaft 3, causing the basket 9 to be rapidly rotated through the means disclosed. The speed of rotation is preferably 650 revolutions per minute. The walls of the combustion chamber become heated sufficiently to radiate heat in the basket at a temperature suhcient to melt the tin, although the ame does not contact with the 'tin and hence cannot oXidize the same. The space between the false bottom formed by ribs 43 and the bottom of` basket 9 permits the radiated heat to easily pass up through the tin vfrom beneath as well as through the upwardly extending walls of the combustion chamber. The melted tin is thrown olf the scraps and out of basket 9 through wire mesh 41 and against wall12 by centrifugal force. The tin is permittedto cool and may from time to time be removed through openings 45.

It is obvious that t-he details of Iconstruction may be considerably varied withoutdeparting from the spirit of the invention and I do not restrict myself to the specific means shown. v

What I claim and desi-re to secure by Letters Patent is:

l. In an apparatus of the 'character described, a rotatablebasket, ribs forming a false bottom therein, a bearing for said basket, agear on said bearing and means for driving said gear.

2. In an apparatusof the character de' scribed, a rotatable basket, a bearing therescribed, a rotatable basket, a bearing therefor, a water jacket around a ortion of said bearing, a discharge pipe or said water jacket, means for conveying oil to said bearing through said discharge pipe, a gear on said bearlng and means for driving said gear.

-4. In an a aratus of the character described, a double walled receptacle, non-heat conducting. material between said walls and a rotatably supported basket within said re ceptacle.

5, In an apparatus of the character described, a rotatably supported basket, a centrally apertured bearing therefor, a plurality of concentric pipes within said bearing, means permitting water to flow from one of said pipes around the inside of said bearing and' means for discharging said water.

6. In an apparatus 0f the character described, a rotatably sup orted basket, a bearing therefor, means 'or admitting water within said bearing and means moving with said bearing for discharging the water therefrom.

7. In an apparatus of the character described, a rotatably supported basket, a. centrally arranged combustion chamber witha gear on said bearing and means in said basket, a centrally apertured bearing for said basket and concentrically arranged pipes in said bearing, one of said pipes being adapted to conduct fuel and another of ksaid pipes being adapted to convey air t0 said combustion chamber and both of said pipes Haring outwardly at the top.

8..In an apparatus of the character described, a rotatably supported basket, a centrally arranged closed combustion chamber within said basket, means for supplying fuel to said combustionchamber and meansl for directing the flame against the walls of said combustion chamber.

9. In an apparatus of the character desfribed, -a rotatably supported basket, a

cover therefor, a centrally arranged combusy tion chamber in said basket, a cover therefor and a false bottom within said basket, the

space between the basket proper and the alse bottom forming a heat radiating cham- 10. In an apparatus of the character described, a rotatably supported basket, a centrally apertured bearing therefor, means for supplying water to the inside of said bearing, means for dischargin the water from said bearing and means or deiecting the water into said last named means.

1l. In an apparatus of the character described, a horizontally rotatable basket, a vertical bearing therefor, anV imperforate Walled combustion lchamber within said In testimony whereof I have hereunto basket, a gear on said vertical bearing and signed my name in the presence of two sub 10 means for driving said gear. scrbing Witnesses. l

12. In an' apparatus of the character de- EMERSON CORSO'N I 'IGIGIINS` 5 scribed, a rotatably supported basket, a bearing therefor, a Water jacket .around said` Witnessest bea-ring and means for supplying water to K. G. LE Ann,- the inside of Said bearing. e E. P. LA GAY.

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