Патент USA US2408394код для вставки
Oct. l, 1946. 2,40839 I J. A. GlTs ET Al. FLASHLIGHT Filed Jan. ,'30, 1944 2 Sheets-Shest l JNVENTOR. «fasefjvh/ ¿è @LÈS Jui@ PÚL'ZLS, i., / Oct. 1, 1946. J. A. G11-s ETAL 2,408,393 FLASHLIGHT Filed Jan. 2o, l1944 l I / QwhFw@1Nw9u@Jm? 'I Afi/I », N N l vri 2 Sheets-Sheet 2 Patented Oct. 1, 1946 2,408,393 -UNITED STATES PATENT OFFICE 2,408,393 FLASHLIGHT i Joseph A. Gits and Jules I’. Gits, Chicago, Ill. Application January 2o, 194i, serial No. Sissi; 20 Claims. A(Cl. 20G-60) 1 `This invention relates to flashlights and more particularly to waterproof flashlights, an object being to provide such a device that shall have all the necessary features of construction and oper ation to enable its convenient and satisfactory use under all ordinary conditions and under the most severe conditions as well, such as in heavy other rivet or conductor contact by an inward substantially radial pressure or butt contact movement _instead of a longitudinal sliding ccn tact movement. i _ _ _ These switch contacts are preferably seated in rains, iording streams, submergence, the neces va shallow exterior recess or groove in the shell _be sity'of signaling by dashing or by a continuous neath the housing of the switch mechanism of suilicient depth to accommodate the radial move beam, sometimes immediately upon emerging >from the water. 2 rivet or extension. The free .end_of the spring is thus adapted to be brought into contact with the Such use, of course, involves ment of the springcontact in opening the circuit. a Switch, and practical requirements necessitate A thin flexible gasket, sheet or layer of suitable that it be located on the side or" the eiongated waterproof material is placed over the recess and shell or casing, be comparatively flat or thin with no greatly protruding parts such as operating 15 the contacts and is sealed to the casing at its edges, preferably as hereinafter described. , _ _ levers or the like, be conveniently operable for The switch housing and operating partspref intermittent or continuous beam operatic-n or for erably- of a more or less _iiat construction_.__are no operation at all, and the parts to remain in placed over the said gasket, the peripheral iiange their selected positions of operation until p-osi tively moved therefrom whereby to avoid acci 20 of the housing conforming tothe surface contour of the casing about the recess andbeing suitably dental or inadvertent displacement. secured to the casing as by rivets through the cas In such devices, the current conductors may ing walls and gasket. This eiïectively clamps and be arranged inside the shell or casing where they seals the gasket around _its edges to the `casing are protected but the switch contacts connected therewith must be'brought out to the exterior " " about the recess or groove and prevents the en trance oi moisture to the recess with its switch for engagement by the movable switch contacts in order to make and break the circuit therethrough contacts. without ` the operating movable parts passing through the shell. But the switch housing over lying and enclosing said contacts and switching such as a push-button for the intermittent or A further object of the invention, therefore, is to provide a device of the class described which, while conforming to the standard requirements as to form, size, space and operation, shall not permit dampness within the switch housing to reach the switch contacts. ' ` i In carrying out the invention, provision is made for separating the switch proper between the eX posed ends of the conductor contacts and the operating mechanism therefor. The switch con tacts are preferably operated by a transverse or radial movement as distinguished from a longi tudinal movement, having reference to the elon gated shell or casing of the device, as by a suit able spring metal Contact strip fixed at one end __ _ cludes a radially or transversely acting pressure whereby said contact may be operated by _the ñasli‘operationof the switch, the connections of therefore may admit more or less dampness or moisture to the interior ofthe same. _ member placed over the position of the spring contact within the groove inside of the gasket, parts has operating devices passing therethrough, a three-position thumb-piece, or ‘other parts, which are not Water-tight with the housing and _ The switch-operating mechanism thus enclosed within the housing outside the flexible gasket in "at pressure o_f said member directly through _the gasket Without rubbing along the surface of the same as would be the case >with a longitudinally slidable or rubbing contact operating device in the housing, and without being attached thereto. Thus the life of ther gasket is preserved, a better and more positive action of the switch contacts is, obtained, and no'sacriñce is made of the com pact flat top housing and longitudinal operat ing mechanism therein, as will be described. Thus various additional objects of the inven tion are present and all will-appear from the de tailed description and- claims to follow, in con nection with the accompanying drawingswhich represent an embodiment ofthe invention, and in whi'ch- ' ` ’ ' i Fig. l is a side View of a ñashlight embodying the present invention; ' Fig. 2 is a longitudinal section of the same, to one of the conductor rivets or exterior exten taken on the line 2_2 oi" Figi; ' sions with its free end standing over and normally 3 is a similar section, taken at right angles out of contact with the other exterior conductor 55 to Fig. that of Fig. 2; ' ‘ ' ` I 2,408,393 3 them are provided, may be suíiicient to secure a watertight seal at both ends of the casing for certain uses of the ñashlight. When gaskets I2' and I1' are used, it will be impossible for mois ture or water to reach the interior of the ñash light under any condition of use because they as sure a watertight relation at all times. The reflector I4 is preferably somewhat arcu ate in shape and the light socket I5 is preferably provided with an open fend ‘through which the central'terminal of the 4lamp 1S may project. A transverse bridge 2l across. the shell IS may be molded integrally within the shell at the junc ture of the cylindrical portion and the right Fig. 4 is a bottom view of the exterior switching mechanism; Fig. 5 is a longitudinal section on a larger scale through the switch and casing wall and showing the parts in the “01T” position of the switch; Fig. 6 is a similar view showing the switch parts in the intermediate position for intermittent or ñashing operation of the light; Fig. '7 is a similar viewshowing the parts in the third position :for the ~continuous .or beam oper ation of the light; Fig. 8 i's a cross-section through the switch and casing on the line 8-8 of Fig. 5; and Fig. 9 is an exploded view of the switch parts angular head II. From the central terminal of lthe lamp I6 the circuit is continued through .the bridge 2l by a curved spring contact mem in perspective. The flashlight shown comprises _preferably an elongated shell or casing Il), circular in cross section, having at the front end-a right-angular head I I, which is threaded to receive an >internally ber 22 engaging at its free end the said terminal of the .lamp bulb and being secured at'y its other end to the adjacent face of bridge 2i by means 20 threaded cap I2, adapted to carry a lens I3 >and Iof a rivet 23 which _passes vthrough .the .bridge an assemblycomprising a reflector I4, a light andthe .inner head `.of which .forms .a terminal socketv I5. and alight bulb I6. Shell or 'casing for engaging thefront terminal of the forward ZIll ~is preferably elongated 'toreceive 'one :or more batteryB, as «shown in Figs..2 .and„3. batteries B, B', or'the equivalentarranged there ~ - .The lamp .and socket arrangementmay be-of in in .stacked relation, so that .the .terminals 25 any .approved type solong as the lamp when in thereof are at or near the opposite ends ofthe final position has Vits other .terminal .connected shell yor casing. with the -metallic reñector, which, .as will be de The .shell or casing I0 is preferably of insula scribed, is arranged to beconnectedthrough suit tion, such as thermoplastic. material, which may be molded `at .-low cost, particularly if .molded 30 able conductors, including vthe .operating switch, .with the -rear `terminal of the rear .battery >B'.. under pressureby injection. This material, ad .The arrangementshown, however, ispreferred, in ditionally, .is somewhat yieldab'le-.and resilient which the socket AI5 is an .externally threaded whereby .to withstand fracture, - chipping .or .dent tubular sleeve lof insulating `>material whichy if jing when the device .is .dropped or .otherwise desired, may be lthe Same as >that >of the shell. roughlyhandled.. Further, .its yieldability and This threads -into the ymetallic extension 24 vof the .reflector I4. This extension y2li «may .be lin, resiliency may be controlled'by ,the «use .of vsuit able 'p'lasticizers to enable the material -to with tegralwith the reflector .I4 or formed as a sepa stand wide variations in .temperature as well as .rate part and :interlocked therewith as »indicated rough handling. 'The cap I2 maybe -of the same material. .The lens iI3 .may be made of 40 at 25, but in any »event a metallic shoulder 26 'is formed so that the -flange 21 of the bulb I6, transparent 'thermoplastic material .having . .the forming the other terminal .of thebulb I6, may same .index of refraction as glass, .whereby to be clamped against 'the shoulder or .flange 25 reduce .liability of breakage .of .lens in case of when the socket I5_ .is threaded into position, dropping or other accident. The rearend .of vthis .shell or .casing .l0 is ,ex 45, as Shown in Fig. 3, whereby the >electric circuit of .thelamp tothe reñector is completed. ternally threaded to receive an internally'threaded .closure cap I1 preferably .of the samematerial as the shell, said cap‘having a chamber receiv ing a metal .strip .with its .endsbent rearwardly .tojform va removable .U-.shaped bracket I8, ,pro vided with .a spring .grip I9. 4riveted .centrally thereto :to carry an vextra lamp `bulb .20, if Vde sired.A .The >interengaging threads at the ends .oi-the Vshell ïlß and on thecaps 'I2 vand »I1 tend-to form The rear‘battery terminal 28, comprising the. end Vplate 'of `battery B', will firmly press-against spirally vcoiled .spring -29 to `compress `itand fhold -it against seat Si) .formingan internal shoulderin cap ~.I‘I. This will `bring the outer convolution »of the spring- into ñrm «electrical engagement with lan `annular metal insert, .collar -or -sleeve SI Aat the rear end of the cylinder. HL'When :the .55 . a watertight Aseal when -the caps are threaded in position. An adequate number of threads, together with the tendency of the thermoplastic material to have. a tight gripping action between end cap I‘I -is tightened. -. The circuit is. brought from the ends of the‘shell to the location. of the operating switching‘mech anism by two metal contact strips 32 and 33 which are located between'two integrally formed spacer ribs 34 -on the Vinside surface îof the its vown surfaces, provides a seal that prevents shell, 'said ribs being of suhicient yheight »to pre water or moisture from creeping past the thread vent the batteries coming into contact with the ed engagement into the Vinteriorcr” the «'shell; conductor strips, to prevent short circuits ‘orxleak Howevengaskets I2’ -are provided on opposite age of ‘currentin the event the insulationcf the sides .of -the rim :of reñector AIII `:and a «gasket . I1' isiprovidedbetweenfafshoulder I9' von casing 165 batteries -breaks down. The forward strip 321mg a ri‘ght-angular'ex v"land cap rI'I. .Captl'l may :have `~a 'iV-shaped tension ‘or Contact end 35 pressing resilieritly rib 'I8' about its rim :adapted vto bite into "gasket -against the adjacent outer -surface of the `reflec -I'I’ when cap ‘I1 Tis lthreaded 'tightly into vits position engaging shoulder In'. These Agaskets I 2' and I1' are furnished/when Tit is Vdesirable _ to assure a watertight relation Vbetween casing Il] and both Vcaps I2‘and I1.. .'A's'stated, the‘tend ency of thermoplastic material-to :provide-atig'ht gripping 4action when Van ladequate lnumber of threads and the proper size relation between ' tor Illxwhich permits the'reñec'tor assembly'to be ‘readily removed vand inserted withoutrspecial attention being-givenfto the contact 35m’ the use of tools to disconnecto? connect the same. ' This spring 35 completes rthe electric -circuit from the reflector to the 'conductor 32. The lower `'spacer rib @34, nas seen 'in'Fig v3, that is, Vonthe Aopposite 5 2,408,393 side of the conductor 32 from the reflector as sembly, may have an integrally formed flange 36 extending under and upwardly inside the con ductor strip 32 whereby to form a shelf-like sup porting means for this forward end of the con ductor strip in order to keep the right-angularly extending linger or end 35 of conductor 32 prop erly supported whereby suitably to engage the reflector to complete the circuit therethrough. in Figs. 4 and 9, and the shell or casing I0 of the device has molded thereon a seat for the periph eral edge flange thereof, as indicated. An outer marginal raised rib or bead 44 on the shell l0 surrounds the' said seat and flange of the hous ing and a similar raised rib or bead 45 is at the inner periphery of the seat for the flange of the switch housing 43. The neoprene or similar sheet or gasket 42 is The rear conductor strip 33 at the rear end of 10 of the same outline form as the switch housing the shell is secured thereto by a rivet 3l' which 43, as seen in Fig. 9, but is a little larger, so that also holds the inserted sleeve 3| in place as well when placed in position over the switch contacts as the conductor in good electrical contact there and recess, and the switch housing is pressed with, the formed head of the rivet being pressed down to seat at or below the threaded surface to 15 down thereon as indicated, the gasket is com~ pressed between the said beads or ribs 44 and 45 avoid interference with the threading of end cap and to the seat by the flange of the switch hous | 1 in place or its removal. ing. This seals the joint all around against the The inner ends of conductors 32 and 33 are entrance of moisture. The switch housing 43 is disposed opposite an elongated recess or groove 38 formed in the exterior of the shell or casing 20 firmly riveted to the shell or casing of the device, preferably by three rivets, two at the forward I 0. This recess is long enough to overlap the end and one at the rear, as indicated by the holes adjacent ends of the conductors 32 and 33, wide 43e in Fig. 9, passing through the said flange, the enough (Fig. 8) to accommodate the switch gasket having similar holes 42a, and the elon spring contact to be described, and deep enough gated casing or shell ID, said rivets being of the to receive the said spring contact and permit its leak-proof type mentioned. Thus the switch con free end proper operation transversely to open tacts within the groove or recess in the shell or and close the circuit, as shown and hereafter de casing I0 and the conductor rivets and connec scribed. tions therein are entirely protected from the The rear end of forward conductor strip 32 is presence of moisture. secured in place by a rivet 39 seated in the for The free end of spring contact 4| within the ward end of recess or external groove 38, and serves as one of the terminals or contacts of the recess or groove moves in a radial or transverse switch for opening and closing the circuit of the device. The forward end of conductor 33 is like wise secured in place by rivet 40 which is seated erated by simple pressure through the gasket. at the rear end of the groove or recess 38 and serves to secure the contact spring 4| in the bot tom of the recess and to provide a current-con ductive path thereto. This spring extends to the forward end ofthe recess over the contact rivet 39. It is normally biased to stand away from or over the said contact rivet, but upon a transverse inward pressure being applied to its free end it closes contact with said rivet to complete the cir cuit of the device. These rivets, and in fact all the rivets passing through the shell, are of the type and kind that permit their heads to be formed without provid ing connections that allow water and moisture to seep into or otherwise gain access to the interior of the shell I0. The yieldable or pliable nature of the thermooplastic material of the shell and the forming operation of the heads cause them to be ñrmly pressed against and bite into the mate rial, and, in the case of conductors 32 and 33, to be pulled tightly against the inner Wall of this thermoplastic material and form thereby a per fect seal at each rivet. In order that water or moisture may not get into the recess 38 and to the rivets and switch contacts therein, a suitable thin, flexible or elas tic layer, sheet or gasket 42 of rubber or rubber direction to open and close the circuit and is op Thus there is no undue wear on the inside of the gasket from such movement, as might be the case with sliding switch contacts or the like. Likewise the switch-operating pressure on the outside of the gasket is radial or transverse, so that no undue wear thereon due to a sliding en gagement takes place in operating the switch. This is accomplished by a longitudinally station ary pressure member or spring 46, seen in per spective in Fig. 9, and which is secured at its rear end to shell or casing I!) by the rear` rivet 45 47 of the switch housing 43 which passes through the housing flange, the gasket and the shell I0, and in this instance also through the rear con ductor strip 33 which serves as a washer or bear~ ing plate for the rivet on the inside of the shell, 50 thus securing all these parts ñxedly together and in watertight relation so far as concerns the ad mission of moisture to the inside of the shell |0. This member 46 extends forwardly to the for ward part of the raised part of housing 43, over 55 the outside of gasket 42, and with its free end over the end of contact spring 4| on the inner side of the gasket 42. The spring member 46 is biased when in position so that its free end tends normally to rise and not to apply pressure 60 through tl e gasket on the spring contact 4|, although it may lie more or less close to the gas ket 42. When an inward pressure is applied to like waterproof material, preferably neoprene, is the free end of this switch-operating spring 46, laid over the recess and the switch contacts and parts therein and is clamped and sealed at its Ll therefore, the pressure is carried through the gas ket 42, which is elastic, iiexible or loose enough edges in water-tight relation to the shell or cas to permit the same, and the switch spring 4| is ing I0 preferably by the peripheral edge flange of thereby depressed and closes Contact with the the housing 43 of the switch-operating parts, as rivet contact 33, to close the lamp circuit of the will be described. device. When the pressure on the member 4S This switch housing 43 has a central raised ñat is released, it, together with the gasket and con portion and a sloping edge portion terminating in an outwardly extending peripheral flange tact spring 4 |, will return to normal position and the circuit is opened. ~ which is formed to conform to the surface of the It is desirable, and for some uses imperative, shell or casing to which it is attached. The switch casing has a peripheral outline, as shown 75 that the switch have a permanent on or closed position for continuous beam or ray operation of .2,408,393 (Fig. 8) are formed in vertical ortransverse alignment withïthe lugs 58 o-n the slidable mem `affect tthe foperation; a Ypermanently open lor `off ber-when in the olf position. Accordingly, lwhen '.position. when the push-button is -likewise yinca push-button 51 depresses ¿spring 50, 'in this loff pable 1of;closing 'the circuit; and another or in position of the parts, lugs §58 ,on-slide V50 strike termediate position 'when the push-button may 5 bosses 5l. on the kshell through the gasket, _and beA operated `in .the usual way to open `or close cannot >be forced ,- down kfurther to operate the the .switch for :flashing „or temporarily lighting member 4_4,5 to close the switch contacts of »the the lamp. device. In :order to accomplish this ina simple, in In the next position of the thumb-piec-e--the expensive and convenient manner without un 10 iiashing position-«the parts are lin the position :dulyrenlarging or thickening the flat and shallow `ofqFig. 6, where the slida'ble member 59 Yhas been 1svi/itch«housing-the vforward end of switch-oper pushed -forward 'so Ithat .its >forward free end ating. '.spring‘ßlt` is provided on the outside with overlies the ñrst step-'48 on the, end of the switch »two steps :.48 and 49, which are conveniently member 45. Depression of the push formed 'by bending up nvoappropriatelyformed 15 operating button now causes the end of member 5i) to .en V.side Vwings- from the spring itself,.as seen in Fig. gage steps 4S on memberf45 :and to press it down <9.’ .These >stepsware 'adapted to be appropriately on the gasket and through ‘the _gasket to depress engaged. by 'the .forward ‘broad end of the mem and -close spring lcontact 4 I. Thus in v.this posi ber.: 50,.,:shown1in Fig. 9,-which suitably slidable -tion vof `the parts the push-button 51 vmay be ¿along 'the‘inside of the fiat vtop of the switch vused to flash the >light Vin the ordinary man .housing 1.43, as will‘be now described. ^ » Inet'. :The pentral raised lportion yof the housing 43 In :the third or permanently on position -of .isprovided with ya pair of slits‘âl and an inter thegparts, Vas seen in Fig. ‘1, thumb-piece 51 lhas itheilightfat Vwhich time the ,push-button cannot mediate ¿portion which is centrally corrugated, Vto provide, in effect, two round transverse shoul 'ders yor .-ribsz52. Thumb-piece 53, shown sepa rately in fFig. '9. 1is `provided Vwith side legs 54, Ybeen'moved'forward.to-its fullon position. The `free end of yslidable spring Y5e has been ¿pushed «one -`on each side, passing respectively down through the slots 5l in the top of the housing operate through gasket 42 the vswitch spring 4I Iandthrough theside notches :55, of the »slidable ymemberç5€l `>on the inside-of Ithe housing. The .endszof «these >legsare .bent inwardly on the under side >of the member 59 in order to hold this'mem fber againstfthe'runder‘side of the switch housing and enableit rto be moved therealong by a cor responding movement ofthe thumb-piece 53. The three positions -of ‘this .thumb-'piece to which the-slidable spring member 50 lis moved to .obtain the off, flash and on positions »of oper ation «of the device are deñnitely located by the .angularior ‘il-shaped leaf spring 55 on the in side of the thumb-piece, as shown, the »central point or line of which rides over the ribs 52 as the vthumb-piece is forcibly moved in either -di .rection and causes said thumb-piece to'assume over onto ithehigher step 49 of switch-actuating member 45, and the latter has been depressed to vto close «the circuit. This entire movementiof the end of spring 4S lis brought about by push ing V"the end of spring-59 between the raised step 49 on member Y4t and a lugor depression-62 on the inside of the vhousing formed preferably by 35 indenting the rim of the raised part of the hous ing, as indicated in Fig. 9. This lug or indenta- Y tion »52 does .not interfere with the normal rise of the free end -of spring46,since the two wings constituting the said steps are able to straddle 40 the samerin the ,uppermost position of the mem ber 46. The broad portion of the-end of >‘mem »ber `50 bridges the two -wings forming the steps when pushed forward yto -contact therewith. jFrom the foregoing vdescription it 'will :be ob gp. en served that the unique type of switch structure disclosed :herein Contemplatesthe use of a hous and come to rrestiin one of the three positions, inghaving a flanged rim adapted to be clamped as -shown lin Figs. 5, 6 and '1, unless forcibly upon-a seatdefined-by ythe outer and inner beads moved therefrom. 441and‘45, the lflanged rrim 4being held between -Afpush-‘button `Y51 îis mounted in the housing '43, as shown, over the forward portion of slid 50 these beads with gasket 42 compressed between the-rim and seat and the forward end of the .able spring r50 which tends vto keep the button in place, the 'ñangeof the vbutton normally seat ing in -the raised ring of the housing. In the off position of ’the'parts as shown 1in Fig. 5, the‘thumb-piece 53 is in’its rear lposition. -The forward end ofthe slidable member 59 lies lrim-»pressing against the outer edge of the ‘gas ket, which -may be turned `upwardly to .lie be tween >the _forward end fof the j rim and the vinside Vface of Vouter Vrib 44. Forming a seat >of 'this character may be omitted `as a feature of >the switch structure, when so desired, but it novelly assists in the assembly-of the switch Vof the 'switch-pressingmember 45. Ordinarily, structure upon the side of casing Ill and assures the depression ofthe push-'button in this posi ,tion of the parts would not be sufficient to cause 60 a water-tight Vfit when the -switch structure .is riveted in place. The inside rib 45 will `of course, the end of the member 5o to press down on the have a -cutaway portion where rmember 46 ex `member 46 enough to close thc-switchcontact ¿4l .tendsforwardly fromrivet 41 as shown in Fig. 6. in the 'recess under the gasket. But to -insure Forming `a recess in ythe wall-of the barrel of a against such a closure of the switch -by la forced ñashlight enables using a switchstructure that depression >of the `push-button, lugs 58 on the hugs .closely Ato the barrel, and also disposing lower ‘side of ‘the‘inember väilnear its outer edges switch parts in compact relationin this structure. are formed, preferably by striking them up from This compactness is further made possible by the material of the member. These lugs 58 are these switch parts and their arrangement, the ‘far 'enough apart to `straddle the reduced end 59 (Fig. 9) of member 45, and are in advance of 70 latter further providing positive operation and occupying >but minimum space. In a device of >shoulders 60 thereof, so thatthe member 4.6 Ais the type described, which requires simplicity and not depressed thereby. Then, on the shell >or minimum cost of production, .novelty resides in casing l0 adjacent the groove 38 ’for the `switch using aspring -contactmember engaging one vof spring 4l .and Vin advance of the shoulders 60 .the contacts .serving _battery 'terminals and 15 V(Fig.v 9) on member N¢liì,.slight1y raised bosses 6| :in the rear of "the steps 48 and 49 on the Aend 2,408,393 l10 positioned over the others of these contacts so that it may be pressed into circuit closing en gagement therewith by a switch pressing mem ber operable by a slidable spring member. The switch pressing member is disposed between the spring contact and the slidable spring member, and it acts cojointly with the slidable spring member tc eflect the closing of the circuit, either overlying said recess and said contacts, a switch housing over said recess and gasket and clamping the gasket to the casing in watertight relation around the recess, and switch contact operating mechanisms connected with said switch housing to operate said contacts through the flexible ing a waterproof gasketed switch, without de parting from accepted sizes and features of con said conductors being located in close proximity gasket. 5. In a device of the class described, a water by a flashing or full on position, with a minimum proof casing, conductors in said casing arranged movement of the parts. 10 for electrical connection with opposite terminals Thus a waterproof flashlight is provided hav struction an `doperation and in which the gasket and engaging parts operate by transverse pres sure, whereby wear on the gasket is minimized and the switch contacts are protected against dampness. Having thus described the invention and the best manner now known for carrying same into effect, what is claimed and desired to be secured by Letters Patent is: 1. In a device of the class described, a water proof casing, electric conductors therein arranged for connection with opposite terminals of a source of current supply housed in said casing and having portions in close proximity with each other, and switching means including contacts to make and of a source of current supply, two of the ends of to establish a circuit making and breaking rela tion therebetween, the exterior wall of the casing 15.y having a shallow recess opposite said ends, nor mally open switch contacts in said recess con nected respectively through the bottom of the recess with said ends, a Waterproof ñexible sheet of material covering said recess and switch con , tacts therein, a housing over said sheet and recess and contacts having an edge flange clamping the ñexible sheet as a gasket to the casing with a watertight connection, and operating means within the housing to operate said switch con tacts in the recess by pressure through the flex ible sheet to make and break the circuit through said contacts and conductors. 6. In a device of the class described, a water break the circuit between said portions said con proof casing, conductors in said casing arranged tacts being exposed externally of said casing, a 30 for electrical connection with opposite terminals flexible waterproof layer overlying said contacts of a source of current supply, two of the ends of and in waterproof relation with said casing, and said conductors being located in close proximity operating mechanism on the exterior of the casing to establish a circuit making and 'breaking rela to operate said contacts by pressure through said tion therebetween, the wall of the casing adja flexible layer. cent said ends being recessed on the exterior, 2. In a device of the class described, a water rivets passing through said ends into the bottom proof casing, conductors in said casing arranged of the recess and securing the conductors to the for electrical connection with opposite terminals casing, a contact spring in the recess secured at of a source of current supply, two of the ends of one end by one of said rivets and overlying but said conductors being located in close proximity 40 normally out of contact with the other of said to establish a circuit making and breaking rela rivets but adapted to be brought into contact tion therebetween, contacts in electrical relation therewith to close the circuit therethrough, a flex with said conductor ends and exposed at the out ible waterproof gasket sheet overlying said recess side of said casing, a ñexible waterproof gasket and contact spring and overlapping the edges of overlying said contacts and in waterproof rela 45 the recess, a switch housing overlying said gasket tion with said casing, and switch operating mech and clamping the same at the edges to the casing anism overlying said gasket to operate said con with a watertight connection, and manually oper tacts by pressure transmitted through the gas ated mechanism in the housing and over the con ket to make and break the circuit through the tact spring with the gasket between to operate contacts on the under side of the gasket. 50 said contact spring to make and break the circuit through the said conductors. 3. In a device of the class described, a water proof casing, conductors in said casing arranged for electrical connection with opposite terminals of a source of current supply, two of the ends of ’7. In a device of the class described, a water proof casing, conductors in said casing arranged for electrical connection with opposite terminals said conductors ‘being located in close proximity 55 of a source of current supply, two of the ends of to establish a circuit making and breaking rela said conductors ‘being located in close proximity tion therebetween, contacts in electrical relation to establish a circuit making and breaking rela with said conductor ends exposed to the outside tion therebetween, contacts in electrical relation of said casing, a flexible waterproof gasket sheet with said conductor ends exposed to the outside overlying said contacts, a switch housing overlying 60 of said casing, a switch housing over said contacts said gasket sheet and clamping it in watertight having a peripheral flange, raised beads on the relation at the edges to said casing, and contact casing along the inner and outer edges of said operating means associated with the switch hous flange, a sheet of flexible waterproof material ing to operate said contacts by pressure thereon overlying said contacts and extending to said exerted through the said ñexible gasket. outer bead and clamped at the edge portion fo 4. In a device of the class described, a water the casing between the said beads by the said proof casing, conductors in said casing arranged flange in watertight relation, and switch oper for electrical connection with opposite terminals ating means beneath the housing outside the of a source of current supply, two of the ends of said sheet to operate said contacts inside the sheet said conductors being located in close proximity 70 to control the circuit therethrough, to establishv a circuit making and breaking rela 8. In a device of the class described, a water tion therebetween, the casing having a recess in proof casing having conductors therein for elec its outer face opposite said conductor ends, switch trical connection with the opposite poles of' a contacts in said recess in electrical connection source of current supply, said conductors having with said ends, a :flexible waterproof gasket sheet 75 portions in close proximity within the casing, 2,408,393 'Il contacts connected with said portions exposed't'o the exterior of the casing, a sheet ofñexible wa terproof material overlying said exposed contacts, a switch housing over said sheet having a clamp ing flange conforming to the non-planular ccn tour of the casing to clamp said sheet at its edge in watertight relation to the casing, and switch operating means in said housing to operate said conta-cts through the sheet to make and break 10 the circuit through said conductors. to effect' depression also of’ said slidable 'member when ina position to engageA one of said' protru sions, the other protrusion when engaged by'said slidable member actuating said depressible »mem ber to eilect a. constant circuit closing» relation between said spring-contact memberA and said other contact. 12. Switch` mechanism for a flashlight com prising, in combination, two contacts, a spring contact member secured to» one of said` contacts andY extending to -a-posi't'ion" over the other -con 9. In a device of the class described, a wa tact, a depressible member secured at one of its terproof casing, conductors in said casing ar ends to have itsy opposite end in av position to ranged for electrical connection with opposite press against said spring contact member and to terminals of a source of current supply, two of the ends of said conductors .being located in close 15 move the latter memberv into» engagement w-ith saidï other contact, a manually operable*- 'mem proximity to establish a circuit making and break-V ber adapted to have one of three positions, means ing relation therebetween, contacts in electrical for preventing said manually operable member relation with said conductor ends exposed to the from actuating said depressiblemember when in outside of said casing, a normally open» spring contact to close when depressed - the circuit 20l one off its positions and means to actuatev said through» said exposed contacts, a switch housing depressi-ble member to-eiîect either of two move ments by the movement of saidl manually oper able member to the other two of its saidV three positions, said movements of said depressible piece on the outside» thereof, a 'push-bitten» in the housing` adjacent the thumb-piece, a metal 25 member effecting etiher momentary or constant on «the casing over said contacts, a three-position slide inside the housing ope-rated by a thumb strip secured at one end to said- casingl and eX engagement by said spring contact member with tending under said push-button» and slide and arranged at its- free end' when depressed to op erate and close» said spring contact, ‘said slide said other contact. conductors in said casing arranged for electrical connection with opposite terminals of? -a source of- current supply, two endsl of' said conductors being located in close proximity to establish a circuit making and breaking relation therebe tween, contact-s in electricalv relation with-said conductor ends andV having portionsV extending through the wall-of saidl casing, a spring contact 45 able member when- actuated from engaging said depressible member, the other two points of en 13. Switch mechanism for a flashlight com prising, in combination, a switch housing, av spring contact member, a depressible member serving in the» off position toprevent loperation of and a slidable member; said slidable member be said strip bythe push-button, in» another posi ing arranged to engage" and depress said--depres tion to permit its ope 1ation by the push-button sible member into engagement with said spring to intermittently open and'clo'se'the- circuit, and contact member whereby` to move the latter: to in a third position t'ofoper‘ate the-spring contact to close the circuit> independently vof the push 35 circuit closing position, and a plurality of points of engagement for said slidable member, one of button. said points vof engagement preventing said slid 10. Ina device of the class described, a casing, member secured’ to one of said 'conductor con gagement being at different-levels and disposed upon said> depressibleI member, one of said two points of engagement causing momentary en gagement only of said spring contact in circuit closing position when said slidable member isA in a position 'and' actuated to engage said point of engagement, the otherl of said two pointsv of en-l gagementY causing a constant circuit closing vposi tion of said spring contact when said slidable tacts yand extending over the-other of said con ductor contacts, a depressible member secured at member is moved to a position to engage said one Yof its ends' to vhave itsl opposite> end in a po sition to press against said4 spring contact ‘mem 50 last point of engagement. 14. Switch mechanism for a flashlight com ber and to move the latter into engagement with prising, in combi-nation, a switch housing, a saidV other conductor contact, and a sliadable spring contact member, a depressible member andA member adapted~ tobemoved-to one of three- 4po a slidable member, said lslidable member being sitions, means »for preventing said slidable'mem arranged to engage and> depress said: 'depressible ber from »engaging «andactua-t-ing said- depressible member into engagement with said spring 'con' member into-a position effecting an engagement tact member whereby to move the latter to cir by said spring contact member with said other cuit closing position, abutment means on said Contact member, and meansl to cause said »sl-id depressible member, saidY abutment means hav' able member to effect either of- t-wo movements- of said,` depressible member, e'fìecting either momen 60 ing two engagement levels for said slidable mem ber., one -of said engagement levels requiring said tary or distant engagement by said spring con slidable member to bedepressed to engage the. tact member with said other conductor contact. same and depressV said depressible member into il. -Switch mechanism for- a flashlight com circuit closing position, and means on said switch prising in combination, two contacts, a spring housing to depress 'Said slidable member downV Contact member in fixed electrical relation with and upon the 'other engagement level when said one of said contacts and extending to a position slidabley member is moved toward said other en over the other contact, a depressible member, gagement level whereby said depressi'ble member and a` slidable member, said meinbersbeing dis is depressed to actuate~ said spring contact mem posed one above the other, said slidable mem ber having a plurality of positions and being mov 70 ber to circuit closing position. 15. Switch mechanism for a flashlight com able to eiîect actuation of said depressible mem prising, in combination, a spring contact member ber wherebyV to move said spring contact mem adapted to be secured at or near one end to the ber into circuit closing position with said other barrel of the flashlight, a manually slidable mem contact, protrusions on said depressible member engageable by said slidable member, and -me'ans 75 ber above said spring contact memberfor ef-v 2,408,393 I 13 fecting a depressing movement of said spring contact member` to circuit closing position, and a housing for enclosing said spring contact member and said slidable member. 16. In a device of the class described, a casing, spaced contacts carried by said casing, a spring 14 member for effecting a depressing movement of said contact member to circuit closing position, and a housing for enclosing said contact member and said manually operable member. 19. Switch mechanism for a liashlight com prising, in combination, a contact member adapt contact member in iìxed relation with one of said ed to be secured to the barrel of the flashlight, contacts for closing an electrical circuit by being a manually operable member above said contact depressed into engagement with the other con member for effecting a depressing movement of tact, a well in said casing, said spring contact l0 said contact member to circuit closing position, being disposed in said well, a switch housing hav a flexible waterproof membrane disposed between ing an outwardly extending iiange about its base, said contact member and said manually operable a seat upon said casing for receiving said flange, member, and a housing for enclosing said mem said seat being disposed about said well, a gasket brane and both said members, said housing se between said seat and said ñange, and a manually 15 Acuring said membrane to said barrel whereby to movable member within said switch housing for seal said contact member in water-tight relation eiîecting operation of said spring contact. between said membrane and said barrel. 17. In a device of the class described, a casing, 20. Switch mechanism for a iiashlight com a Well in said casing, a switch structure adapted prising, in combination, a contact member adapt to be mounted upon said casing, the parts of 20 ed to be secured to the barrel of the flashlight, said switch structure including a circuit closing a manually operable member above said contact member disposed in said well, a manually oper member for effecting a depressing movement of able member and a housing for the same, a ñange said contact member to circuit closing position, formed about the base of said housing, and spaced a housing for enclosing said contact member and upstanding beads on said casing about said well 25 said manually operable member, and a flexible adapted to form a seat to receive said housing waterproof membrane disposed within said hous flange. 18. Switch mechanism for a flashlight com prising, in combination, a, contact member adapt ed to be secured to the barrel of the ñashlight, 30 a manually operable member above said contact ing to seal said contact member in water-tight relation. JOSEPH A. GITS. JULES P. GITS.