US1451965A - Liquid-level gauge - Google Patents

Description

Apr. 17, 1923.

A. B. SHULTZ LI UID LEVEL GAUGE I Filed May 5, 1922 Patented Apr. 17, 1923.

NI ED- ATES ALBERT B. SHULTZ, or BUrrALdivnw YORK..

'20 a vide aliquid gauge for this purpose which .is comparatively simple and inexpensive in To all whom it may concern 1,451,965 P TE OFFICE.

LIQUID-LEVEL GAUGE.

npplication filii May 3,

This invention relates to a gauge which is designed to indicate'the variations of the level of a liquid and more particularly. to a gauge of this character which may be used on the radiator of an automobile for jthe purpose of indicating the height of the Water therein 'and thusenable the attendant to replenishthe radiator with water from timeto time, as required, for maintaining the same in thehighest state of efiiciency and also avoid injury to the parts'associated with the radiator.

:It is the object of this invention to proconstruction', which can be readily applied to the. standard typesv of radiators now on theemarket and which will give a reliable indication when the water in the radiator s below normal. j i a In the accompanying drawings: Figure 1 is. a vertical sectional elevation of'an auto mobile radiator equipped with my improved liquid gauge. Figures 2 and 3 are horizontal sections taken on the correspondingly numbered lines inFig. 1;

Similar characters of reference refer to like parts throughout the several views.

My invention is useful for indicating the variations in the level of a liquid which may be contained in receptacles of various kinds, but more particularly the water level within the upper tank or box 10 of an automobile radiator, which latter is provided in its top with an upright filling nipple or collar 11 through which the water is introduced from time to time to replenish waste due to leakage and evaporation. Ordinarily this fill ing collar 11 is closed by means of an ordi nary screw cap, which is detachably connected with the collar by nieansof a screw joint and provided in its top 13 with a central opening 14.

My improved liquid gauge is mounted on this cap or cover and in its preferred form the same is constructed as follows Projecting downwardly through'the opening 14.- in the top of the filler cap is a tubular nipple or body 15 which in its preferred 1922. Serial No. ssaoe form has its lower end provided with an internal flange 17, the central part of which is provided with a perforation 18. Above the filler cap is arranged a hood, dome or casing 19 of hollow form which in the preferred construction is of larger diameter than the nipple and has its lower end connected with the upper end of thesame by a horizontal web 20 which forms a downwardly facing shoulder 16 on the underside of the web engaging the upper side of the top 13,said

nipple, dome and web being preferably 1 formed in one piece by castingor otherwise. On the upper part "of the front and rear sides of this hood the same is provided with sight openings 21, 21, which permit-ofIobserving the interior of this hood fromv the front and rear sides thereof.

Sliding vertically in the opening 18 and guided by the latter is'an upright shifting rod 22, the upper part of which terminates within the hood and isprovided in the latter with an indicator head23 which in the preferred form has the shape of a sphere, as shown in Figs. land 2, and is connected with the shifting rod by means of a screw joints To the lower end ofthisshifting rod 1 i is secured a float 24 which is adapted to ride on the liquid within the tank or receptacle 10 and rise and fall therewith in response to variations in the level 'of the liquid within'the tank." This float maybe of anyysuitable construction, but as shown in the drawings, the same is preferably made in the form of a hollow sheet metal body and secured by means of a screw end of the shifting rod.

The nipple 15 is secured in place on the filler capby means ofa clamping screw nut 25 engagingwith an external screw thread on the lower end of this nipple and bearing against the underside of the cap top 13 through the medium of an interposed washer 26, thereby holding the nipple 15 and hood 19 in place on the filler cap and also forming a leak-tight joint between the same. On

one side, the clamping nut 25 is provided a with a downwardly projecting guide arm 27 which latter is provided at its lower end joint to the lower with a guide eye 28 which receives the lower part of the shifting rod 22 above the float vertical movements and maintain the float and indicator head in their proper positions.

When the level of the liquid in the tank or p will be either wholly or partly concealed from View through the sight opening and thuswarn the attendant that the water supin the, tank requiresreplenishing. It will therefore be evident that by these means the attendant can always keep av careful watch on thesupply of waterin the radiator without "necessitating the removal or ,the filler capffor this purpose and thus ensure maintaining the 'radiator in its highest state of efiiciency and preventing injury to. any

I the parts associated 'therewith iwhi'ch would be liable'to occur if the water level ,b ec oi rie slunduly 19w or exhausted.,

a y mounting this liqui' dTgau'ge on th e radiato r fille r cap the. same is renioved f om .pearan'ce. a

the radiatortank with the cap, and, restored thereto as a unit, thereby avoiding the use of any extra parts whichlare liable to become misplacedand also avoiding the n ecessity of alteringthe tank or operative parts tliepraldi'atorfor thep'urpose of applying this11iquid. gauge thereto. V In its general organization this liquid g'auge'is very "simple in construction and reliable in operation and is sightly in ap- I claim asmy invention: y 1..A l1qu1.(lle,vel gauge coinpr s ing a cap adapted to be mounted on the receptacle con tainin g the liquid to'begaged and having an opening in its top, a nipple arranged in said opening and having a shoulder at its upper end and an internal perforated flange at its lower end, a hoodarranged at the upper end of said nipple and having a sight opening, a vertically movable shifting rodguided in the perforation of said flange and provided at its upper end with an indicator head which is adapted to move vertieallyrelative to said sight opening, a float mounted onthe lower end of said rod and adapted to respond to variations ;in the height of the liquid in said receptacle, a sc're'w 'nu tgarranged on the lower part of said nipple and engaging with the undersidejof the top of said capya'nd a guide armdepending from said screw nut andjprovided'atits lower'encl with an eye in which the 'lojwer part-o'f said shifting rod is guided. y v

p 2. A liquidlevel gauge'comprising' 'a cap adapted. to befmoun tedonthe receptacle containingfthe liquidito begagedfandfha ing said opening and having a'laterally extending web forming a downwardly facing shoulderwhic h' engages 'ivith'the top" of said cap and an internal perforated'fiange atflts lower end a hood o'f largeidihmeter than said nipple and having its lower end connected with said web and'lprovided in its upper part with asight ppening vertically movablelshifting rod'slidiiig in the'per foration dfsaid lowerfiange andp'rovided at 1tsupper end w th an nd cator h'e'adwlnch is movable vertically relatively'to 's'aidsight open ng rne ans for securing sa d nipple in said cap anjd a float arranged "at the lower end {said rod and adaptedto ri'se linden with the liquid level in said receptacle.

ALBERT B. SHULTZ.

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