US2267069A - Wash tank - Google Patents

Description

Dec. 23, 1941.

R. J. ANSCHICKS WASH TANK l Filed Dec. 7; 195s Patented Dec. 23, 1941 Unirse srarfes i,

ari-,snr offer-ics ".VJASH TANK Rudolph J. 'Anschicks, Chicago, ill., =,assi,gnor.,t o

Protectoseal .Company of America, LInc., Chlcago, Ill., a'corporation of Illinois Applicationgleccmber 7, 1938,;SeraliNo.:2445376 4 Claims. (o1. 2201-89) 'The invention relates to 'wash Ytanks or receptaclesyand more particularly it relates to :tanks or receptacles for inflammable or volatile liquids in which articles may be dipped or submerged and thereby subjected tothe cleansing properties of the liquids.

This application is a 'continuation-,impart of my co-pending application Serial .No. 180;599,

filed December 18, 1937,7and issued under date of April 25, 1939, as Patent'-No;:2,155,i64 foriawash tank provided lwith a cover ,adapted to' prevent evaporation and laccidental ignitionzof the yccntents ofthe tank When `the coveris-closed.

`More particularly the invention consists inthe provision of novel means for supporting the cover in open position -tov permitaccessto the tankfor insertion and removal offiarticles 1 to vbe cleaned by immersion in thecontentsyof the tank, the

vopen Y position of the cover fbeingxsuch vthat Ait closes by gravity in the absence Yof Athe support aiorded by such means.

The invention has amongits objects the provision of novel means operatively Vrelated to the tank and cover Wherebymovement of the cover to open positioncauses said means totake a position wherein the cover is supported Ithereby in open position, -said means-being yieldable to permit the cover to close byexertingvpressurre y,on the cover,-said meansbeingalso yieldable as axresult of ignition ofthe tank :contents-.to permit the cover to close by its own YWeight andthereby immediately terminate combustion inside of fthe tank.

A further object of the invention is tQ-provide a tank or receptacle of the :kind described having improved means automatically operable toquickly stop combustion of the uid contentsof theztank in the event of ignition by accident'or'otherwise.

Another object ofthe invention is to provide a tank or Washing device of the-kind-described with a removable drainage basket for holding articles which are to be immersed inithe `volatile liquid and improved means rfor Supporting said basket -above the liquid.

A-,still further object of the invention is thev'- Aproduction ofxdevices ofthe kind 'describedfwhich are convenient, safe, durable and satisfactory for use Wherever found applicable.

Many other objects and advantages of the coni struction herein shown and described Will be obvious to those skilled in the art from thedisclosure herein given.

To this end, my inventionconsists in the novel construction, varrangement and combination .of

Y parts. herein showniandjdescribed:andfimore: particularly pointed' out infthe claims.

In the drawing,` twherein like-reference .Bhara'cters indicate likeror corresponding rparts:

Fig :i1 is an elevational and partial sectional viewfof, a tank -having a hinged .coverfandfai-basket -embodyingfthe principles of the invention, the

thetank taken I2 when open is slightlyiinclined to .the vertical and correspondingly projectsoverthe top of the tank.

V`The side and `bottom -walls .of..thebasket v.Il

vare provided Witha plurality of apertures .I4 to permit entrance of thetank liquid in which the basket. issubmerged or.: partially submerged when resting on the-bottomof the tank. r'Ilhevbasket ll has a .pairrof oppositely `positionedbutside handles l5 shown-asrespectively .overlapping-V and -resting upon supportingand guide l.elements i6,

theelements being equallyspaced fromitheihi-nged connectionof the cover .l2 and suitablyiastened to theopposite-sideWalls 01"...the .-tankll). .-Apair of bars I,.positioned.insideof andiastenedfi the .basket il by Weldingcr any -.other.s,uitable means, Vprovides Aadditionalhandles ,by means of which .the basketmay be .conveniently liftedffrom theposition shownfand beotherwise manipulated.

Apair ,of verticallyiextending b arsfl oppositely positioned in-.thetank .Iii `and preferablyequally spaced ,from thepsupportingelements I rhave k.their ends `fastened 'tothe tank by Welding or the like. ,The ,middle portions of the bars 1,8 ,project ,inwardly to v provide .additional spacers -Vfor the basket Il, andthe endjportions of the balsiare inclined to,V provi-de` guides forthebasket .during its insertionand removal fromithe tank Sl. The i describedarrangement ofthe supporting elements i6 and bars i8 enables'the' basket II to be easily inserted in and removed.'from thetan-k notwithstanding the open cover l2 projects over 'the'top of the tank.

In practise, the tannin is,partiauynlleaiwiih volatile cleaning liquid such as naphtha or the like and the basket II, containing the article or articles to be cleaned, is lowered to the bottom of the tank with the handles I5 positioned intermediate the bars I6 and the supporting elements I8. Upon completion of the dipping or submerging of the articles in the tank liquid, the basket is lifted and suspended in the upper end of the tank by engaging the handles I5 With the elements I6 to permit drainage of the basket and the articles contained therein through the apertures I4.

The tank fluid being volatile and exposed to accidental ignition when the cover I2 is open, means is provided whereby such ignition permits the cover to close by gravity and stop all combustion within the tank. An assembly of operatively related elements carried by the cover I2 and generally designated by the numeral is provided to support the cover in open position in contact with a stop member 2| said open position of the cover as above stated being such that it tends to close by gravity.

The cover I2 isrhingedly connected to the tank I9 by a pivot I9 extending through cooperating hinge members 22 and 23 respectively fastened to the cover and to the tank. The cover supporting means 2l)k includes a relatively thin elongated bar or support member 24 normally adapted to Vhold the cover I2 in open position 'when the cover is in engagement with the member 2|. The member 24 `extends along the inside face of thecover I2 and between said face and a pair of guide members 25 mounted on the cover. One

end of the member 24 projects inwardly and is 5- apertured to receive a bolt 26 having an end curved to provide a hook or open eye 21. The other end of the member 24 is turned laterally to form spaced apart folds or loops 28 and 29, as

shown, and with its extreme end portion slightly curved and engaging the rim 3i) `of the tank I0 when the cover I2 is open. The cover supporting means 2l) also includes a stud 3| suitably mounted on one of the guide members 25 and extend-Y g ing through an aperture 32 provided in one endv of a fusible link 33. The apertured end of the link 33 is maintained on the stud 3l by a pin 34 and its other end is connected with the bolt 26 by inserting the hook 21 of the bolt through an aperture 35 provided by the link. The end of the member 24, providing the loops 28 and 29, is normally held in adjustable bearing contact with the rim 3l! of the tank I0 by means o-f a nut 36 threaded on the bolt 2S to engage the inwardly projecting apertured end of the member' through which the bolt extends the link 33 being tensioned by such contact. The curvature and relative inclination and positions of the loops 28 and 29 are such that the member 24 maintains the cover I2 in the position shown and the member is thereby yieldable by sliding of the loop 29 over the rim 30 or by bending of the loops 28 and 29 or by both to permit the cover to close by manual pressure thereon or by manipulation.

ofthe member itself. In thus closing the cover I 2, the extreme tank engaging end portion of the loop 29 rides over and disengages the rim 3U and likewise in lifting the cover to open position, the loop sildably engages the rim and is moved to the position shown wherein it adapts the member 24 to support the cover.

In case of the ignition of the liquid contents of the tank I0 or of the gases emanating therefrom when the cover I 2 is op'en, the heat of combusticn will quickly fuse the link 33 to a condition wherein it will yield by elongation under its tensile stress and permit the member 24 to move longitudinally upwardly along the cover I2 to a position wherein the loop 29 disengages or is slidable over the rim 30 of the tank I0 and permits the cover to close by gravity and thereby stop combustion.

Thus, it will be seen that the invention provides improvements in wash tanks of the kind described including means for supporting a basket while draining, and in improvements in devices for holding the tank cover in an open position wherein it tends to close by gravity, said devices permitting the cover to be manually opened and closed and being also automatically operable, to permit the cover to close by gravity as a result of the ignition of the iiuid contents of the tank.

Having thus described my invention, it is obvious that various immaterial modifications may be made in the same without departing from the spirit of my invention; hence, I do not wish to be understood as limiting myself to the exact form, construction, arrangement and combination of parts herein shown and described or uses mentioned.

What I claim as new and desire to secure by Letters Patent is:

1. The combination in a wash tank of the kind described having an opening and a cover adapted to be moved downwardly to close the opening and to be moved upwardly into an open position wherein it tends to close by gravity, of a support member mounted on and automatically operable by movement of the cover from closed to open position to engage the tank and maintain the cover against closure by gravity when in said open position, said support member being yieldable to disengage the tank upon the application of force tending to move the cover from open to closed position, and an elongated fusible element operatively related to and subjected to a tensile pull longitudinally by said operative relation adapted to maintain the support member against movement relative to the cover when in open position, said element being mounted on the inner side of the cover and when fused being adapted to yield by elongation and permit the support member to move relative to the cover and to thereby operatively disengage the tank and allow the cover to close by gravity.

2. The combination in a wash tank of the kind described having an opening and a hinged cover for said opening adapted to be swung from closed to open position and vice versa through an arc of less than ninety degrees, of a bar mounted on the cover, one end of said bar being turned to provide a resilient lateral extension adapted to engage the rim of the tank and support the cover upon its movement to open position, said lateral extension being yieldable to disengage the tank upon the application cf force to the cover tending to swing it from open to closed position, and a fusible element operatively rclated to and normally adapted to maintain the bar against longitudinal movement relative to the cover, said element being mounted on the inner side of the cover and when fused being yieldable to permit longitudinal movement of the bar and thereby to allow the cover to close by gravity.

3. The combination in a wash tank of the kind described having an opening and a hinged cover for said opening adapted to be swung from closed to open position and vice versa through an arc of less than ninety degrees, of a bar mounted on the cover, one end of said bar being arranged to provide a plurality of resilient sinuously arranged lateral extensions with the end extension adapted to engage the rim of the tank whereby the bar provides a support for the cover upon its movement to open position, said lateral extensions being yieldable to disengage the bar from the tank upon the application oi force to the cover tending to swing it from open to closed position, and a fusible element operatively related to and normally adapted to maintain the bar against longitudinal movement relative to the cover, said element being mounted on the cover and When fused being yieldable to permit longitudinal movement of the bar and thereby to allow the cover to close by gravity.

4. A Wash tank of the kind described having a hinged cover, a member adapted to stop the cover at an open position wherein it will close by gravity, an elongated member extending along the cover, means connecting the cover with and preventing longitudinal movement of the elongated member relative to the cover, said elongated member operatively engaging the tank to normally hold the cover in said open position, said elongated member being yieldable laterally to permit manual actuation of the cover from open to closed position and vice versa, said means including an element positioned inside of the cover, said element being fusible upon exposure to heat generated by initial combustion of the volatile fluid contents of the tank, said element when fused releasing said elongated member to permit longitudinal movement thereof relative to the cover and the cover thereby to be closed by gravity.

RUDOLPH J. ANSCHICKS.

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