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Publication numberUS2427388 A
Publication typeGrant
Publication dateSep 16, 1947
Filing dateJun 5, 1945
Priority dateJun 16, 1944
Publication numberUS 2427388 A, US 2427388A, US-A-2427388, US2427388 A, US2427388A
InventorsEdward Curran William
Original AssigneeEdward Curran & Company Ltd
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for cleaning and otherwise treating small articles
US 2427388 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Sept. 16, 1947. wjE. CURRAN 2,427,388

APPARATUS FOR CLEANING AND OTHERWISE TREATING SMALL ARTICLES Filed June 5, 1945 INVENTOR. WpZam, Z C'urnm w N @w v A aw lvlllllll .111 lllllJiI-IIII NIL. \Nm a E R w\ .Q. o Q a a x. 1 u a .q m o QN MN I vii. J a Q MN m." a a -I c ca m 9. 1 W o QM N aw 3 4 N\ R Y N. .E x

Patented Sept. 16 1947 APPARATUS FOR CLEANING AND OTHER- WISE TREATING SMALL ARTICLES William Edward Curran, CardifL'Wales, assignor to Edward Curran & Company Limited,

Cardiff, Wales.

Application June 5, 1945, Serial No. 597,622

In Great Britain June 16, 1944 9 Claims.

This invention relates to apparatus for cleaning and otherwise treating small'articles and is especially adapted to be arranged for pickling and/or washing and drying small articles such as screw-threaded bolts.

It is an object of the invention to provide an improved apparatus of the kind which comprises a rotatable barrel enclosing a helix for moving the articles to be treated along the barrel.

It is a further object of the invention to provide apparatus of the kind referred to in which the articles to be treated are continuously subjected to freshly sprayed liquid, which liquid after being sprayed is caused to move towards a discharge'outlet.

Apparatus for cleaning or otherwise treating,

e. g., pickling small articles according to the invention comprises a barrel inclined to the hori- Zontal, an internal helix non-rotatably mounted in the barrel for conveying articles upwardly therethrough, means for rotating the barrel, a spray pipe in and rotatably mounted with respect to the barrel, said barrel having an inlet at the lower end to receive and an outlet at the upper end to discharge the articles to be treated and a liquid discharge outlet at the lower end of the barrel, passages being provided adjacent the internal surface of the barrel to permit liquid delivered from said pipe to flow downwards to the said liquid discharge outlet. 7

Theinvention will be described by way of example with reference to the accompanying drawings in which V V 7 Fig. 1 is a diagrammatic view partly in longitudinal section and partly in side elevation and Fig. 2 is a sectional view on line A-A of Fig. 1 of apparatus arranged for pickling and washing metal bolts and the like. 7

Referring to the drawings a barrel I is arranged with its longitudinal axis inclined to the horizontal and is supported on a structure 2. Collars 3 and 4 fixed to the outer surface oi the barrel I are arranged to bear on rollers 5 rotatably mounted on the structure 2 while a further set of rollers, of which one roller 6 is shown also mounted on the structure 2, bear against the lower side faces of the collars and prevent the barrel I from sliding downwards. A toothed driving ring 1 fixed to the barrelis engaged by a worm 8 which is arranged to be driven by an electric motor 9 through a chain Ill and wheels II and I2. Rotatably mounted in bearings, not shown, and thus able to remain stationary while the barrel I is rotated,'are co-axial perforated 7 2 a and I6 terminatewithin the barrel at a blank disc I! to which flanges on the tubes are attached. The tubes are provided with perforations? in the lower portions of thetubes as shown more clearly in Fig.2.

Fixedly attached to'the internal surface of the barrel is a helix I9 which extends over the whole length of the barrel and in this helix adjacent the inner surface of the barrel are formed ports 28 which provide passages to enable liquid intro duced to the interior of the barrel from the spray tubes I5 and I6 .to flow down along the barrel surface to parts 2! and 22 ofthe barrel wall which are perforated so. as to permit the liquid to emerge from the barrel. .It will be understood that liquid sprayed from the pipe I5 will flow down the barrel and emerge. at the barrel wall 2| while liquid sprayed from the pipe It will emerge from the barrel via the barrel wall 22 so that liquid from the spray tube I 6 will not flow down into the portion of the interior of the barrel below the blanking disc ll and mix with the liquid from-the spray tube I5. It will be observed from the drawings, particularly from Fig. 2, that the inner edge I90, of the helix I9 is spaced from the tubes I5 and I6.

In the apparatus shown in the drawings an acid, pump 23, arranged to be driven by an electric motor 24, is provided to pump pickling acid solution from a reservoir, not shown, via a pipe 25, a filter 26 and pipe 21 to the spray tube I5. 'The acid solution thus pumped emerges from the lower portion of'the tube l5 and is sprayed on to the lower portion of the interior of the barrel and onto any small articles such as bolts which have been introduced from a hopperZt w'a a chute 29 into the barreland are moved up along the barrel by the helix I9 when the barrel is rotated. As the articles thus move up along the barrel the sprayed acidsolution moves in counter-flow over the articles while they are continuously subjected to the action of fresh solution sprayed from the tube I5f'1hus duringthe tumbling over one another of the small articles which occurs in the barrel the combined efiects of "spraying and immersion in counter-flowing solution and the corresponding advantages of both methods'ai e simultaneously obtained. The acid solution emerging at ivall 'ZI flows via a funnel shaped"duct'30 to thereservoir. I j

' The upper end of th'ei spray tube I6, shown freein the drawing, is, in operation of the apparatus" connected to a source of I washing water under pressure "and this watergasin the case of spray tubes and it. The two spray tubes I5 55 the acid' spliitionds bothsprayedandrnovegl in counter-flow over the articles which are moved by the helix l9 through the upper portion of the barrel. The washing water emerging at the barrel wall 22 flows into a funnel shaped duct 3| and thence by a pipe '32 to waste or to a suitable tank, not shown, whence it may be pumped back to the spray tube Hi.

In order to remove gases or vapour emerging at the lower barrel part 2| a jacket 33 which closes the end I3 of the barrel and a flue 34 are provided. A chute 35 is provided closely adjacent the open end |,4 of the barrel to direct the washed articles, emerging through this end, on to a jigging screening conveyor 36. The space below the mesh screen of this conveyor is enclosed by Walls which are not connected to the screen but which serve to direct air delivered from a fan 31, driven by an electric motor 38, up through the screen and over the articles moving slowly thereon. The air is heated by a heating element 39, which may be, for example, a steam coil or electrical heating element, and serves during its passage through the screen to dry the articles thereon. The dried articles are discharged from the conveyor 35 to any suitable receptacle or conveyor device not shown.

The parts of the apparatus which are subjected to the action of the acid solution are constructed of suitable acid resisting materials. The spray tube I5 is thus suitably made of ebonite as may be the helix l9 while the interior of the barrel and the various pipes conveying the solution may be lined with rubber.

In order to reduce wear of the helix IS the surfaces of the helix which face upwards are covered with a soft resilient material, suitably rubber. Both faces of the helix may be so covered.

I claim:

1. Apparatus for cleaning or otherwise treating, e. g., pickling small articles which comprises a barrel inclined to the horizontal, an internal helix non-rotatably mounted in the barrel for conveying articles upwardly therethrough,

means for rotating the barrel, a spray pipe in and rotatably mounted with respect to the barrel, said barrel having an inlet at the lower end to receive and an outlet at the upper end to discharge the articles to be treated and a liquid discharge outlet at the lower end of the barrel passages being provided adjacent the internal surface of the barrel to permit liquid delivered from said pipe to flow downwards to the said liquid discharge outlet.

2. Apparatus for cleaning or otherwise treating, e. g., pickling small articles which comprises a barrel inclined to the horizontal, an internal helix non-rotatably mounted in the barrel for conveying articles upwardly therethrough; the

faces of said helix facing upwardly being covered with a soft resilient material, means for rotating the barrel, a spray pipe in and rotatably mounted with respect to the barrel, said barrel having an inlet at the lower end to receive and an outlet at the upper end to discharge the articles to be treated and a liquid discharge outlet at the lower end of the barrel, passages being provided adjacent the internal surface ofthe barrel to permit liquid delivered from said pipe to flow downwards to the said liquid discharge outlet.

3. Apparatus for cleaning or otherwise treating, e. g., pickling small articles in t-wo'successive operations, e. g., pickling and subsequently washin the articles which comprises a barrelinclined to the horizontal, aninternal helix'non-rotatably mounted in both the upper and lower portions of the barrel for conveying articles upwardly therethrough, means for rotating the barrel, a spray pipe in the lower portion of the barrel, a further spray pipe in the upper portion of the barrel, said barrel having an inlet at the lower end to receive and an outlet at the upper end to discharge the articles to be treated and a liquid discharge outlet at the lower end of the barrel to discharge liquid sprayed into the lower portion of the barrel from the first mentioned spray pipe and a further liquid discharge outlet intermediate the ends of the barrel to discharge liquid sprayed into the upper portion of the barrel from said further spray pipe, passages being provided adjacent the internal surface of the barrel to permit liquid delivered from each said pipe to flow downwards to the said liquid discharge outlets.

4. Apparatus for cleaning or otherwise treating, e. g., pickling small articles in two successive operations, e. g., pickling and subsequently washing the articles which comprises a barrel inclined to the horizontal, an internal helix non-rotatably mounted in both the upper and lower portions of the barrel for conveying articles upwardly therethrough, the faces of said helix facing upwardly being covered with a soft resilient material, means for rotating the barrel, a spray pipe in the lower portion of the barrel, a further spray pipe in the upper portion of the barrel, said barrel havin an inlet at the lower end to receive and an outlet at the upper end to discharge the articles to be treated and a liquid discharge outlet at the lower end of the barrel to discharge liquid sprayed into the lower portion of the barrel from the first mentioned spray pipe and a further liquid discharge outlet intermediate the ends of the barrel to discharge liquid sprayed into the upper portion of the barrel from said further spray pipe, passages being provided adjacent the internal surface of the barrel to permit liquid delivered from each said pipe to flow downwards to the said liquid discharge outlets.

5. The combination of the apparatus claimed in claim 1 and a conveyor arranged to receive articles discharged from the said apparatus, means being provided for passing heated gas upwards through the conveyor and over the articles thereon 6. The combination of the apparatus claimed in claim 2 and a conveyor arranged to receive articles discharged from the said apparatus, means being provided for passing heated gas upwards through the conveyor and over the articles thereon.

'7. The combination of the apparatus claimed in claim 3 and a conveyor arranged to receive articles discharged from the said apparatus, means being provided for passing heated gas upwards through the conveyor and over the articles thereon.

8. The combination of the apparatus claimed in claim 4 and a conveyor arranged to receive articles discharged from the said apparatus, means being provided for passing heated gas upwards through the conveyor and over the articles there- 9. Apparatus for cleaning or otherwise treating, e. g., pickling, small articles which comprises a barrel having an inlet to admit articles thereto and a discharge outlet for said articles, an internal helix non-rotatably mounted with respect to the barrel for conveying articles therethrough, the faces of saidhelix facing the said discharge outlet being formed by a soft resilient material,

5 6 means for introducing fluid for treating said articles to said barrel, and means for rotating the UNITED STATES PATENTS bErreL Number Name Date WILLIAM EDWARD CURRAN- 5 1,251,073 Maloney Dec. 25, 1917 1,422,309 Schweinsberg et a1. July 11, 1922 REFERENCES CITED 1,912,414 Tobey June 6, 1933 The following references are of record in the 1,928,339 Mulvany Sept, 26, 1933 file of this patent: 2,235,052 Trier Mar. 18, 1941

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1251073 *Jul 31, 1917Dec 25, 1917Frank H MaloneyPickling and washing machine.
US1422309 *Jul 16, 1919Jul 11, 1922U S Electrogalvanizing CompanyApparatus for cleaning articles
US1912414 *Aug 5, 1929Jun 6, 1933Stebler Parker CoFruit drier
US1928339 *Sep 3, 1930Sep 26, 1933Mulvany Harry AConveyer
US2235052 *Jun 9, 1939Mar 18, 1941Briggs & Stratton CorpFuel pump for internal combustion engines
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2523258 *Jun 6, 1947Sep 19, 1950Ransohoff Inc NContinuous feed tumbling mill
US2574867 *Aug 3, 1948Nov 13, 1951Pangborn CorpWork blasting equipment
US2587556 *Jul 11, 1947Feb 26, 1952Max WeissApparatus for preparing concentrates
US2603006 *Aug 3, 1948Jul 15, 1952Ellamac IncPhonetic sound-producing dictionary apparatus
US2619024 *Nov 1, 1950Nov 25, 1952Stokes Machine CoExtractor
US2684560 *Jan 2, 1952Jul 27, 1954Owens Illinois Glass CoCleansing molded plastic articles
US2715869 *Dec 7, 1951Aug 23, 1955Anthony SalvoPotato chip manufacture
US2739427 *Mar 1, 1954Mar 27, 1956Ransohoff Inc NTumbling mill
US2815614 *Oct 17, 1955Dec 10, 1957Kolene CorpMetal cleaning apparatus
US2912800 *Jun 10, 1957Nov 17, 1959Rolls RoyceBarrelling and tumbling apparatus
US2955305 *Apr 12, 1957Oct 11, 1960C O Bartlett & Snow CompanySprue cleaning mill
US3031807 *Nov 2, 1959May 1, 1962Dow Chemical CoLiquid-solid contactor
US3081524 *May 17, 1957Mar 19, 1963Westinghouse Electric CorpScale breaking apparatus for drawn wire
US3089791 *Feb 26, 1962May 14, 1963Koppers Co IncMethod and apparatus for moistening dust
US3250086 *Feb 9, 1959May 10, 1966Morris Jr William FChilling apparatus
US3253533 *May 31, 1962May 31, 1966Gen Mills IncPuffing food products
US3400871 *Jul 22, 1965Sep 10, 1968Monsanto CoApparatus for continuous metal extraction
US3404419 *Jul 22, 1966Oct 8, 1968Charles J. DonovanWashing and cleaning apparatus
US3552405 *Aug 15, 1968Jan 5, 1971Apel Fred BApparatus for cleaning or treating articles
US3754559 *Jan 31, 1972Aug 28, 1973Macleod CoDrum type washer for metal borings and the like
US4073301 *Sep 15, 1976Feb 14, 1978Huntington Alloys, Inc.Liquid treatment of small articles
US4103605 *Jan 17, 1977Aug 1, 1978N.P.I. CorporationMeatball cooker
US5165432 *Jan 13, 1992Nov 24, 1992Cmi International, Inc.Metal chip washing system
DE1078406B *Aug 6, 1957Mar 24, 1960Siemens AgEinrichtung zum Reinigen von Metall- und Nichtmetallteilen unter Einwirkung von Ultraschallschwingungen
DE1205447B *Oct 18, 1960Nov 18, 1965Dow Chemical CoDrehtrommel zur kontinuierlichen Behandlung von koernigem Gut in einem fluessigen Behandlungsmedium
DE4039613A1 *Dec 12, 1990Jul 2, 1992Vaw Ver Aluminium Werke AgEquipment for continuous counterflow washing of loose goods with liq. - comprises inclined internal helical flights with radial slots
EP1920853A2 *Nov 7, 2007May 14, 2008Robert SporerDevice for machining workpieces or similar
WO2009071897A1 *Dec 4, 2008Jun 11, 2009Unique Separation Company LtdApparatus for cleaning particulate materials
Classifications
U.S. Classification134/132, 134/153, 99/443.00C
International ClassificationB08B3/04
Cooperative ClassificationB08B3/042
European ClassificationB08B3/04B2