Dec. 31, 1946. ' ` R_ Popp v _ 2,413,417 PORTABLE LAMP GUARD Filed Sept. 24, 1943 4 Sheets-Sheet l fnlz/eniär: fida/Ulf Poßjv, Dern 31-,1è46. RPOPP .. >PORTABLE LAMP GUARD Filed sept.. 24,l 1943 ' .2,413,417 ' V4_shße'cs-shee1; è D¢C. 3l, R»~ popp_ 2,413,417 PQRTABLE LAMP GUARD Filed sept. 24, -19:13 4 Sheets-Sheet 3 2,413,417 mcs 3l, PORTABLE ì R~ LAMP GUARD 4 Sheets-Sheet 4 Filed Sept. 24, 1945 ß . INVENTOR. MU' . ì BY Patented Dec. 31, ‘1946 UNITED STATES PATENT OFFICE y 2,413,417 _ PORTABLE LAMP GUARD Rudolf Popp, Valparaiso, Ind., assignor to McGill Manufacturing Company, Inc., Valparaiso, Ind., a corporation of Indiana Application September 24, 1943, Serial No. 503,595 9 Claims. (Cl. 24U-54) . l The present invention relates to guards for portable lamps and more particularly to an im proved insulating type of guard which isdetach 2 bulb within a sealed space and for guarding the bulb and enclosing transparent sealing wall against breakage. It is another object of the invention to pro vide an improved portable lamp guard of the character described Which consists solely of in proved methods of making the guard. terñtting parts formed of ñbrous insulating ma Guards have long been employed for insulating terial and in which the parts are held together portable lamps against envelope and ñlament solely by the engagement of the interñtting por breakage during handling, and the usual device of this character conventionally comprises a plu 10 tions thereof. It is still another object of the invention to rality of metal parts which are interconnected Vto provide as a part of the improved all fiber lamp form a cage within which the lamp bulb is dis guard structure, a ñbrous light reflecting element posed. Portable lamp guards employing parts whichmay easily be assembled with the other formed primarily of insulating material have also parts of the structure and is rigidly secured to been manufactured for use in applications Where the guard structure without the use of any metal electrical short circuits »through the parts of the parts. guard are to be avoided. Guards employing parts According to a further object of the invention, formed of insulating material and combined with there is provided an improved structure of the portable lamps of the so-called vapor sealed type, able from a socket carrying handle in which the lamp receiving socket is mounted, and to imr~ _ have also been manufactured for use in areas 20 character described which is so arranged that where static discharges or arcs between the parts of the guard and other metal objects are to' be avoided, due to the presence of inflammable and explosive gases. The latter type of guard, how ever, universally employs metal parts, such, for 25 example, as eyelets, nuts `or rivets, for the purpose of joining the parts formed of insulating mate rial, and frequently machine screw or other eX no metal assembly parts are required in the as sembly of the device and no expensive machine tool operations are required in order to prepare the parts for assembly. According to still another object of the inven tion, all parts of the improved structure are coat ed With a waterproofing substance which also acts to insulate the structure against physical shock pensive cutting operations are resorted to in or 30 and to enhance the rigidity of the joints formed between the interñtting parts of the structure. der .to prepare the parts for assembly. These It is a further` object of the invention to pro expedients are expensive, both from the stand vide an improved structure of the character de point of material cost and from the standpoint scribed which is so arranged that all parts of the of the number of assembly operations required to manufacture a completed device. Devices uti 35 structure may be stamped out on a production basis without special machine tool operations on lizing such fastening expedients are, moreover, the individual parts. More generally stated, it is an object of the present invention to provide an improved struc necessarily weakened in cutting the same to ac 40 ture of the character described which may be simply and easily manufactured with a minimum commodate the metal fastening parts. Moreover, number of simple cutting and assembly opera the arrangements presently in use for sealing the tions, employs easily obtainable and cheap ma bulb' within an enclosure to prevent gas ignition terial, and yet is of rugged and light-weight struc in cases of bulb breakage, are relatively compli cated and expensive to manufacture. 45 ture. It i5 still another object of the invention to - It is an object of the present invention, there provide an improved and simple method of mak fore, to provide an improved portable lamp and ing lamp guards from parts which consist solely guard structure which is substantially free of the of insulating material. disadvantages outlined above and may, without highly susceptible to breakage during the han dling which accompanies the use thereof, due to the fact that the component insulating parts are It is a still further object oi the invention to provide en. improved and simple structure for obtaining a sealed connection between the trans sealed lamp. parent bulb enclosure and the handle within It is another object of the present invention, therefore, to provide a portable sealed lamp which - which the bulb receiving socket is mounted. The invention, both as to its organization and includes improved facilities for enclosing the lamp n manufacturing changes, be readily adapted for 50 use as a non-vapor sealed lamp or as a vapor 2,413,417 3 method of assembly, together with further ob jects and advantages thereof, will best be under stood by reference to the following specification taken in connection with the accompanying draw ings, in which: 4 section of the cord. Adjacent the upper end of the cap, the handle lil is provided with a trans versely extending portion IBC having an opening iSd therethrough which is of the same diameter as the opening iZa. .A soit rubber sleeve ß is disposed within the annular space IZb and is of Fig, l is a side view of a. portable lamp holder greater length than this space, so that as the cap having combined therewith a lamp guard struc I2 is threaded into the tapped end of the handle ture characterized by the features of the present Ii) the end portions of the sleeve are extruded invention; Fig. 2 is a top View of the lamp guard struc within the spaces between the cord Il and the walls of the two openings i2a and IGd, and the ture shown in Fig, 1; intermediate sections of the sleeve are swelled Fig. 3 is a side view of one oi the side members against the conductor il and the sides ci the embodied in the improved lamp guard structure; Fig, 4 is a bottom view of the base ring em bore i219. Thus, the cord l! is ñxedly anchored bodied in the lamp guard structure; 15 within the cap I 2 and a hermetic seal is provided for preventing gases or liquids from entering the Fig. 5 is a top view of one of the assembly rings hollow portion Iilb of the handle through the embodied in the lamp guard structure; Fig. 6 is a top view of the bracing ring embodied cord opening. At the upper side thereof, the flared portion in the structure; Fig. 7 is a perspective view, partially in section, 20 ida of the handle IB is provided with a flat, plat illustrating the mode of assembly of certain of form-like surface upon which the improved lamp the parts included in the structure; guard is rigidly mounted. Briefly considered, this Fig. 8 is a sectional view taken along the lines guard comprises a base plate in the form of an íl-B of Fig. 7 illustrating the manner in which annular ring I5, eight side members I6, a brac one of the side members is joined to the two» as 25 ing ring Il, a pair of assembly plates in the form sembly rings provided in the structure; of annular rings I8 and I9, a suspension hook Fig. 9 is a side view partially in section illus 2|! and a hook securing device in the form of trating a mcdiñed embodiment of the guard a rawhide strip EI. All of the enumerated parts structure having an impro-ved reiiector arrange are formed of hard insulating material and, pref ment incorporated therein; Fig. 10 is a sectional View taken along the lines 30 erably, are constructed of a hard fibrous material liâ-iil ofFig. 9; such as compressed fibre. As will be apparent from a consideration of the detail views thereof, Fig. l1 is a side sectional view illustrating an other embodiment of the combined guard and each of the enumerated parts is formed of flat 'stock such that they may be stamped out in reliector structure; production quantities by utilizing Stamping dies Fig. l2 is an end sectional view of the structure of appropriate design. Moreover, each part is oi shown in Fig. l1; such coniiguration that all required cuts may be Fig. 1.3 is a side View partially in section illus performed with a single stamping operation. trating a portable lamp holder and guard identical Thus, expensive machining operations and re vidth that shown in Fig. l but provided with im 40 peated cutting operations on single elements of proved facilities for enclosing the bulb within a the structure are completely eliminated. sealed chamber; More speciñcally to consider the structural ar Fig. 14 is a top sectional view of the holder rangement of the component parts of the guard, shown in Fig. 13; and it is pointed out that. the base ring I5 is provided Fig. 15 is a fragmentary sectional view of a around the surface thereof with eight equiangu modiñed structure for providing a sealed con larly spaced-apart recesses or openings 22 Iwhich nection between the bulb enclosing globe and the are substantially square and extend transversely handle or" the holder shown in Fig. 13. through the thickness of the ring. At the lower Referring now to the drawings and more par side of the ring I5, the opposed side walls of ticularly to Figs. l and 2 thereof, the portable 50 each opening 22 are beveled or flared outwardly lamp holder there illustrated comprises a handle in the manner indicated at 22a in Fig. 4 of the Iii which is formed of insulating material, such ' drawings, for the purpose of joining the ring with as molded Bakelite or the like, and is provided the side members it in the manner described at its upper end with a ñared portion I on. suit below. The base ring I5 is also provided with ably apertured to receive and have rigidly mount 55 four angularly spaced-apart openings 23 through ed therein a standard incandescent lamp socket. the thickness thereof, which register with the Integra-ily formed radially extending ribs I3 are openings through the ribs i3 of the handle Ill, provided around the 'circumferential surface of and are tapped or threaded to receive the thread the handle portion ma, which are drilled and ed ends of the assembly screws I4 for the pur counterbored to receive assembly screws I4 in a 60 pose of rigidly mounting the guard upon the manner such that the heads of the screws are not upper flat surface of the handle iii. exposed. The handle I S is also provided with Each of the side members I6 is of the coni-lg an axially disposed bore for receiving the conduc uration illustrated in Fig. 3 of the drawings. As tors of a cord Il, these conductors being con there shown, each side member is provided with nected in the customary manner to the terminals 65 a notched lower end Ißa and with an eared upper of the lamp socket mounted within the enlarged end |612, the two ends being joined by a straight apertured portion Iûa of the handle. At its lower section IGC and a curved section läd. Each side end the handle ib is counterbored and tapped to member is further provided `with a notch I6e receive the external threads of an anchor cap i2, at the point along the length thereof where the which is also formed of insulating material. As 70 curved section läd merges with the straight sec best shown in Fig,y 13 of the drawings, this cap tion lßc. More specifically, the notched lower is drilled to provide an opening IZa of slightly end of the illustrated side member I6 is provided greater diameter than the cord II, and is then with a portion I 5f of reduced Width and sub counterbored through the threaded end thereof stantially square cross section which is adapted to provide an annular space I2?) surrounding a to tightly ñt within and to extend through any 2,41s,417 5 or mashed to be accommodated by the beveled one of the openings 22 provided in the base ring portions of the openings 22. In other words, dur l5, sothat the shoulders extending outwardly ing the upsetting operation, flange-like portions therefrom engage the upper surface of the base ring. The upper extremity of the illustrated side member lli is provided with two oppositely ex tending ears lôg and l 6h which are of square cross section and are respectively arranged to be inserted through openingsv provided in the as of the side member ends lßî are produced, which overlie the beveled surfaces 22a of the opposed side walls in each opening 22. In this regard it is noted that the amount of material of each side member end portion llif which projects be low the lower surface of the base ring l5 is just sembly rings i8 and .lil in the manner more fully suiiicient to ñll the beveled portions of an open pointed out below. ing 22 when expanded during the upsetting oper The assembly washers or rings i8 and I9 are of ation. Thus, each side member is rigidly an identical structure, each thereof being provided chored to the base ring l5 with the lower end with eight leduiangularly spaced-apart i openings surface thereof exactly flush with the lower sur 24 which extend transversely through the thick face of the bearing ring. ness thereof, are substantially square, and are of Either before or after the upsetting operation such dimensions as to tightly engage the ears lSg is completed in the manner just described, and and lâh of the side members i6. As best shown preferably before, the bracing ring l'l is so posi in Figs. 5, 7 and 8, the side walls which denne tioned that the slots lla therein angularly coin each opening 24 through the ring I8 are provided with beveled or outwardly flared portions 24a 20 cide with~the upstanding side members IE. The bracing ring is now telescoped down over the side on one side of the ring for the purpose of anchor members It with the slots l'la embracing the ing an ear leg inserted therethrough in the man side surfaces of the side members until it is hori ner explained below. Similarly, the opposite side zontally aligned with the slots lâe 'provided in walls of each opening through the lower assem the side members. As the slots läe are thus bly ring le are beveled or flared outwardly at the lower side of this ring so that an ear lith, of one of the side members lli may be anchored brought into alignment with the bracing ring l‘l, therewithin. The two assembly rings i8 and I9 are provided with centrally aligned openings portion of the bracing ring disposed opposite a the side members snap outwardly so that each which receive an end Eile of the suspension hook ' posed opposite a slot lße is embraced by the side 2li, this end of the hooi; being of reduced width such- that shoulders are provided for bearing against the upper surface of the upper assembly surfaces of a slot l la. Thus, an interfitting dove tail connection is provided between each of the side members and the bracing ring which serves to restrain the bracing ring against movement longitudinally of the guard and to restrain the side members against relative lateral movement. ring I8. The portion of the hook end 29a which extends through the aligned openings of the as sembly rings i3 and l S is drilled at a point there along adjacent the undersurface of the ring le in order to receive the rawhide strip 2l and thus retain the hook 2L? supported upon the two as sembly rings. ' " slot i'la is embraced by the side walls of a slot l 5e and each portion of each side member dis In this regard it will be understood that as the bracing ring is telescoped over the side mem 40 bers, the side members are bent inwardly to tension the base ring l5. Accordingly, the side As best shown in Fig. 6 of the drawings, the members i6 are snapped into interñtting rela annular bearing ring li is of the same sectional width as the side members lli and is provided with tionship with the bracing ring l1 when this ten sion is relieved by bringing the slots lâe and l'la into adjustment. After ythe base ring l5, the side members I6 and the bracing ring l‘l have been assembled each equiangularly spaced-apart notches l'la which extend radially out-ward from the inner cir cumferential surface-s thereof and are of such width as tightly to embrace the side surfaces of the side members iß'when inteigñtted with the in the manner explained above, the upper ears lßg of the side members lb are projected through notches i6@ of these side members. In this re gard it is also pointed out that the width of the notch lee formed in each side member lâ is such that the upper and lower surfaces of the notch will tightly embrace the adjacent upper and lower lthe openings 24 provided in the upper assembly ring l ¿i until the lower surface of the indicated assembly ring rests upon the adjacent flat sur faces of the side members. In a similar man ner, the downwardly extending ear ith of the side members I6 are projected through the open surfaces of the bearing ring l'l when the notched portions of the ‘oearina ring and side member are brought into interiitting engagement. 22 of the base ring so that the extreme end por ings 24 provided in the lower assembly ring lll until the upper surface of the ring abuts the flat under surfaces of the side members. After the rings I8 and IS have thus been brought to bear against the upper and lower surfaces of the side member sections lßd, and occupy their final tions thereof project slightly beyond the lower assembly positions, the projecting end portions surface of the base rin . of the ears llig and lâh are upset or expanded to embrace the beveledv surfaces 24a of the open In the assembly of the improved guard, the base ring $5 is supported upon a suitable holding fixture and the end idf of the eight side mem bers E6 are inserted through the eight openings 60 It will be understood that in this assembly operation, the ends |53’ are so inserted within the openings 22 of the 65 ings 24 respectively provided in the two rings base ring that the upper or offset ends i517 lli and lll. The amount of material of each ear thereof converge at their extremities. The por idg which projects above the upper surface of tions of the side member ends lßf which project outwardly from the lower surface of the base the ring I3 and the amount of material which projects below the lower surface of the ring I9 is ring i5 are now upset or spread by a suitable 70 just sufficient to ñll the beveled portions of an press orpeening operation, either individually or collectively,` depending upon the machinery avail able. During the upsetting operation, that por tion of each end lñf which projects beyond the lower surface of -thebearing ring l5 is spread opening 2li when expanded during the upsetting operation. Here again, the end portions of the ears lßg and lBh may be individually upset to 75 provide the Hangs-like projections which overlie the beveled portions of the slots 24.- On the 2,413,417 8 other hand, if suitable upsetting dies are avail able, the flanging of the end portions of the ears éEg and ith may be accomplished in a single operation. As a further alternative, the assem bly of all'parts of the guard, with the exception of «the hook 2e, may be completed, after which the are constructed to have straight portions lEc which extend well'above the bracing ring Il and substantially to the end of a light bulb disposed within the structure. The curved portions IGd of the side members` are made somewhat flat in order to reduce the overv all length of the end portions of the projection íêf and the ears âtg and SSR may be upset in a single operation, structure, and are enlarged at the lower ends thereof so that slots Hlm for receiving the end edge of the element 25 may be provided therein providing suitable presses and upsetting dies are available fory this purpose. Thus the assembly 10 at the ends of the straight portions Ißc. Also, rings and the side members are firmly anchored to each other to provide a rigid assembly of the character illustrated in Figs. ‘7 and 8 of the draw ings. Following the assembly of the parts l5, I6, ll, the portions llìc of the side members are out to have a uniform width which is less than the width of the base ring I5, and is greater than the width of the bracing ring lll by an amount equalto the thickness of the element 25. The excess width of each side members projects radi i8 and lll in the manner explained above, all ally inward from the inner edge of the bracing exposed surfaces thereof are covered with a coat ring Il to provide a stop surface which may be ing of lacquer, varnish or other adhesive, water engaged by a side edge of the element 25. proofing, cement-like material, for the purpose Aside from the structural differences just point of closing the cells of the fibrous material from 20 ed out, the guard structure as shown in Figs. 9 which these parts are made, and for the addi and 10 is the same as that shown in Figs. 1 to 8, tional purpose of closing the interstices which inclusive, and the elements thereof are assem may remain between the joined interfitting por bled in exactly the manner explained above. The tions of the enumerated parts. The coating of the exposed surfaces is preferably performed by 25 element 25, which is cut from thin fiat stock has a length which equals the distance between dipping the completely assembled guard in a the upper flat surface of the base ring l5 and lacquer or varnish bath in order to insure that the bottom edge portions of the slots lem. It all exposed surfaces of the component parts are has a width which is slightly greater than the completely covered. In this regard it is noted that the coating which is formed on the outer 30 length of the are extending from a side surface of one of the side members lli to the opposite surfaces of the various parts by subjecting the side surface of the diametrically opposed side assembly to a lacquer or varnish bath and then member IB, and touches the inner edge surfaces allowing the particular coating substance to set of the intervening side members l5. After as or dry, not only serves to prevent warping and sembly of the guard structure and before the disintegration of the fibrous material parts when parts thereof are lacquered or varnished, the re exposed to moisture, but in addition, serves as fleeting element lili may be assembled within the a shock absorbing layer which prevents these structure by grasping the side edges thereof and parts from being bruised and weakened when pressing these edges toward each other to de~ subjected to blows occasioned by dropping the guard or striking the same against hard objects. 40 form the element into a trough-like conñgura tion. The element may then be telescoped within Moreover, cracks which may remain between the joined interñtting portions of >the various parts are ñlled so that the adjacent displaced the guard structure to project the upper edge portion thereof within the slots IGm of the side members lll. Coincident with the insertion of surfaces of the joints are effectively cemented together to enhance the rigidity of the structure. 45 the edge portion of the element 25 within the slot Mlm, the base portion of this element may The final assembly operation of the guard is be slipped over the upper surface of the base that of mounting the hook 2li upon the completed ring l5, and the side edges thereof may be slipped cage assembly. rlî‘he manner in which this is or forced within the side surfaces of the two accomplished will be obvious in View of the pre ceding explanation. It is noted, however, that 50 diametrically opposed side members iii. Inci dent to the last mentioned operation, the central the hook is also stamped out from ñat fibrous portion of the element 25 is brought into tight material stool: and is dipped or otherwise coated engagement with the inner edges of the three with a suitable waterproofing lacquer or varnish intervening side members it. In this regard, prior to its assembly upon the cage portion of it will be understood that the inner edge of the the guard. After the assembly of the guard parts bracing ring il prevents the element 25 from has been completed in the manner just explained, bulging out through the gap between any adja the guard may be mounted upon the flared por cent pair of the side members. tion lilo of the handle l0 by threading the assem After the element 25 has been positioned within bly screws Iê into the tapped drill holes 23 pro vided in thebase ring i5. 60 the» guard structure in the manner explained above, the inner upper edge portion of the base Referring now more particularly to Figs. 9 ring l5 may be upset at three or more points and 10 of the drawings, the modified embodi around the upper edge portion of the base ring ment of the invention. there shown, is essentially periphery which is spanned by the element 25, similar to that illustrated in Fig/s. l to >8, inclu sive, and described above. Accordingly, like ref 65 thereby to provide anchoring flanges 26 in the manner indicated in Fig. 9 of the drawings. Thus erence characters have been used to identify cor the reflecting element 25 is rigidly locked against responding parts of the two structures. In the the bracing ring I'I and three of the side mem structure of Figs. 9 and lll there is provided a bers I6 both along its upper and its lower edges. thin light reflecting element Z5, which is formed of a tough resilient fibrous. material, such, for eX 70 It is looked against rotary movement relative to the side members It through engagement of its ample, as nbre board, extends longitudinally of side edges with the opposite side surfaces of the the guard structure, and describes an arc span two diametrically opposed side members. After ning the gaps between five of the side members the reflecting element 25 has been thus anchored l5. >In order rigidly». to secure the element 25 within the guard structure, the entire assembly within the guard structure, the side members IE 2,413,417 10 cally opposed side members It in the manner best illustrated in` Fig. 12 of the drawings. For quer, varnish, or another adhesive,waterproofing, the purpose of maintaining this elementl rigidly cement-like material in the manner explained mounted within the guard structurejt is cut in above. This coating not only performs the func tions previously described, but in addition, serves DI wardly at four points along each side edge thereof in order to provide tongues 25a and 25h which to bond the element r25 against the bearing sur extend in opposite directions. During the as faces of the other elements of the structure, sembly of the reflecting element within the guard thereby to enhance the rigidity of the> overall may then be _dipped orotherwise coated with lac construction. , In the modified arrangement illustrated in Figs. 10 lvl and 12 of the drawings, the side members I6 are straight throughout their length. They have a uniform width which exactly equals the width of the bracing ring I1 and is slightly less than the width of the base ring l5. The lower end as sembly of the structure is exactly the same as that shown in Figs. 1, 3 and 4 of the drawings. The upper end assembly of this structure is sub stantially different from the corresponding end assemblies ofthe structures shown in Figs. 1 and 20 9. More speciñcally, the upper end assembly of the structureshown in Figs- 11 and 12 comprises a spoked wheel-like top member 21 which may be die-stamped from flat ñbrous material, such, for example, as ñbre board, of the proper thickness. 25 This member is provided with an outer ring por-*_ tion 21a, the inner and outer circumferential di mensions of which exactly equal the correspond ing dimensions of the base ring I5. Extending A structure, the tongues 25a may, by suitable finger manipulation, be pushed away from the main bodyof the element and positioned against the side surface of one of the side members I5 so that when released they tend to draw the edge portion Yof the element into tight engagement with the edge surface of the side member. Simi larly, the tongues 25h may be bent _outwardly away from the main body of the element 25 and so vmanipulated that when released they engage the vside surface of the opposite side member I6 in order to draw the other side edge portion of the element 25 into engagement with the edge surface of the oppositev side member. Thus the tongues 25a and 2519 in their engagement with the diametrically opposed side ymembers I6 not only serve to restrain the element 25 against ro tary `movement relative to the guard structure, but in addition, serve to maintain the side edge portions of the member 25 in tight engagement with the edge surfacesv of two of the side mem radially inward from the ring portion 21a are a 30 bers It. The upper and lower edges of the ele ment 25 are, of course, rigidly confined between plurality of spokes 2lb which terminate at an the inner top surface of the base ring I5 and the apertured hub portion 21e concentrically disposed lower surface of the top member 21. Thus a within the ring portion 21a. This hub portion structure of great rigidity and ruggedness is pro is provided with an aperture 21d for receiving ' vided. After the reflecting element 25 has been the lower end portion of the mounting hook 20, assembled with the other parts of the guard the cotter pin 2l being provided on the underside structure in the manner explained above, the of the hub portion 21e to span the aperture 21d entire structure may be dipped or otherwise coat and thus maintain the hook 20 assembled upon ed with lacquer >or varnish in the manner ex the member 21. Opposite the ends of the spokes 21h, the ring portion 21a of the Inembell 21 is 40 plained above. This coating serves to bond the reñecting element 25 to the bearing surfaces of provided with rectangular apertures 21e for snug the other parts of the guard structure, thereby ly receiving the ends IBg of the members I6 of further to enhance the rigidity with which the reduced cross-section. These apertures are of element 25 is mounted within this structure. the same configuration as the apertures 22, Fig. 4, From the above explanation it will be under 45 provided in the base ring l5. stood that an improved portable lamp guard is In the assembly of the improved guard struc provided, which consists solely of parts formed of ture, the base ring I5 is supported upon a suit hard fibrous insulating material, and that the able holding ñxture and the ends I6f of the eight resulting structure is rugged, and is pleasing in side members i6 are inserted through the eight openings of the base ring. The upper ends of the 50 appearance. It will also be apparent that _in the manufacture of the device, no expensive machine side members are then sprung inwardly to be tool operations are required. Moreover, the cut received within the transversely extending slots ting and assembly of the component elements of of the bracing ring I1, following which the brac the guard may be accomplished in a simple and ing ringis telescoped downwardly over the outer edge surfaces of the side members until the slots 55 inexpensive manner using standard equipment and with a minimum number of operations. thereof are brought into coincidence with the As best shown in Figs. 13 and 14 of the draw slots in the side members. When this position ings, a bulb enclosing globe 3l? may be utilized in of the bracing ring is established the side mein conjunction with the handle and guard structure bers snap outwardly to become interlocked with the bracing ring I1, in the manner previously ex 60 shown in Figs. 1 and 2 for the purpose of enclos ing a bulb 3l, with which the device is ñtted, plained, so that the upper ends Ißg thereof are within a sealed gas tight chamber. This globe is positioned to be received within the apertures in the form of an inverted cup, is constructed of 21e of the member 2'?. After the top member 21 glass having heavy wall thickness, and half the is thus assembled upon the upper ends of the side ` members I6, the end portions Iög and IBfof the 65 area thereof is enameled as indicated at 3M to provide a light reñecting surface. At the outer side members may be upset to provide rigid con side- of the rimportion thereof, the globe 39 is nections between all parts of the structure. provided with threads 3th which are adapted for The light reflecting element 25 of the struc threaded engagement with internal threads Iûe ture shown in Figs, 1l and 12 of the drawings is adapted to be held within the inner peripheral 70 provided at the inner peripheral surface of the recessed end portion of the handle More spe edge of the base ring I5 and the ring portion 21a ciñcally, the enlarged upper portion Ida of `the of the member 21 which overhangs the side mem handle I0 is provided with an enlarged cup bers It inwardly of the guard structure. The shaped opening at which the socket receiving side edge portions of this element are adapted opening Iûb terminates. Thus, a flat platform lto bear against the inner edges of two diametri; 2,413,417 l1 l2 like surface Iûf extending transversely of the handle Il] is provided between the walls of the enlarged cup-shaped opening and the edge socket receiving opening lûb. The inner edge of this opposite ends each being provided with integrally surface is utilized to support a flange or lip 35a formed oppositely projecting ears which extend parallel to said side members, and a pair of as sembly rings disposed on opposite sides of said opposite ends and respectively provided with extending radially outward from the lamp receiv spaced apertures therethrough through which ing socket 35. For the purpose of providing a sealed connection between the globe 30 and the handle le, a soft rubber washer 32 is provided, which lies ñat against the surface Iûf and snugly 10 said oppositely extending ears extend, said ears having flanges at their extremities which overlíe segments of said assembly rings to maintain said rings and side members assembled. 2. A portable lamp guard comprising a flat embraces the periphery of the socket flange 35a. base ring having spaced apertures therethrough, The outer edge surface of this washer is disposed between the edge of the globe 3i) and the surface a plurality of side members provided with ends of Ißf to be clamped therebetween when the globe reduced cross section extending through the ap 3i) is threaded into the threaded portion of the 15 ertures in said base and with opposite ends which handle I e. Thus, a hermetic seal is provided be converge at their extremities, said first-named tween the rim of the globe 3i) and the handle lil. ends having flanges at their extremities which This seal, in cooperation with the seal provided overlie segments of the base ring to maintain the by the soft rubber sleeve 8, functions to prevent named parts assembled, said opposite ends each iniiammable gases or vapors from entering the being provided with oppositely projecting ears chamber within which the bulb 3l is disposed. which extend generally parallel to said side mem The bulb receiving socket 35 is held in its assem bers, and a pair of assembly rings disposed on bled position within the opening lûb by means opposite side of said opposite ends and respec of assembly elements 3d which bear against the tively provided with spaced-apart apertures upper surface of the flange 35a, overlíe the rubber 25 therethrough through which said oppositely ex washer 32, and are held in clamping engagement tending ears extend, said ears also having flanges with the upper edge of the socket 35 by clamping at their extremities which overlíe segments of screws 33 which are threaded into the flared por said assembly rings to maintain said side mem bers and assembly rings assembled together. tion ma of the handle IB. The modified structure shown in Fig` l5 of the 3. A portable lamp guard comprising a base, drawings is substantially similar to that just de e, plurality of side members provided with ends scribed, the principal difference being that in the , attached to said base and with opposite ends Fig. 15 arrangement, the soft rubber Washer 32 which converge at the extremities thereof, said serves the two functions of providing a hermetic opposite ends of said side members each being seal between the handle I0 and the globe 30 and 35 provided with oppositely projecting integrally of resiliently supporting the lamp socket 35 with-A formed ears at its extremity which extend gen in the handle it to minimize the transmission of erally parallel to said side members, and a pair of mechanical shock or vibration to the lamp bulb. fiat assembly rings disposed on Opposite sides of In order to enhance the action of the rubber said end extremities to extend transversely of said washerl >32 in performing the last-mentioned 40 side members and respectively provided with function, this washer is provided with an up spaced-apart apertures therethrough through standing annular portion 32a of greater longi tudinal thickness than the remaining portions of the washer. At the upper edge thereof, the washer portion 32a supports the annular rim of 45 which said oppositely extending ears extend, said ears being provided with flange-like portions the lamp socket 35 in a manner such that the side walls of the socket are displaced from the inner parts in assembled relationship. 4.-In a portable lamp unit, the combination of surface of the opening Iûb within the handle' I0. Assembly screws 33 and clamping elements 34, in combination with spacing columns 36, are utilized to clamp the socket rim 35a to the platform sur face lûf of the handle l0 through the thickness of the annular washer portion 32a. More spe cifically, each spacer column 36 is in the form of which overlie segments of their associated as sembly rings in order to maintain the named a handle having a flat annular seat at one end thereof for the reception of a guard thereon, and a guard comprising a plurality of hard fibrous parts including a flat base ring with spaced-apart apertures therethrough and adapted to be mounted upon said flat annular seat of the a sleeve telescoped over one of the assembly screws 33 and is provided with a tapering upper handle, a plurality of side members each pro vided with an end of reduced cross-section ñtting within and extending through one of said aper surface, such that a knife edge support is pro vided for the associated clamping element 34 at ber end is substantially coplanar with the bottom the end thereof furthest removed from the pe tures so that the end surface of said side mem surface of said nat base ring, said side-member Thus, a 60 ends having flange-like portions which overlíe simple arrangement is provided by which the segments of said base ring within said apertures lamp socket 35 is resiliently supported upon the to retain the side members and base ring rigidly handle I0 to prevent mechanical shocks from be , assembled together but positioned so as not to ing transmitted to a bulb or lamp supported interfere with the mounting of the flat base ring therein. on the ñat annular seat of the handle, and as While different embodiments of the invention sembly means at the opposite ends of said side have been disclosed, it will be understood that members including a dat ring apertured to re ceive corresponding end portions of said side various modiñcations may be made therein, members extending therethrough with the outer which are within the true spirit and scope of the invention. 70 ends of said end portions being upset to main tain said assembly means and said side members I claim: in assembled relation. l. A portable lamp guard comprising a base, a 5. A portable lamp guard comprising a base, a plurality of spaced-apart side members provided plurality of side members provided with ends with ends attached to said base and with oppo attached to said base 'and with opposite ends site ends which converge at their extremities, said ripheral edge of the socket flange 35a. 2,413,417 13 Which converge at their extremities, said side members each being provided with integrally formed oppositely extending ears at its extremity, assembly plates disposed on opposite sides of said end extremities and respectively provided with spaced-apart recesses within which lsaid ears are anchored, said plates having aligned openings therethrough, a, suspension hook having an end ~ portion which extends through said aligned openings and is provided with a shoulder abutting the one of said plates farthest removed from said base, and means coacting with said hook end portion and the other of said plates for securing said hook to said plates. ' 14 notches substantially at the Junctions between the straight and curved portions thereof, a top member attached to the converging extremities of said side members, a light reflecting element disposed Within said side members and provided with one edge bearing against said base ring and with an opposite edge anchoredywithin at least a portion of said notches, and means for anchor ing said element along said one edge. 8. A portable lamp guard comprising a base ring, a plurality of spaced-apart side members provided with ends attached to said base ring, said side members having straight portions and curved end portions which converge at their eX 6. A portable lamp guard consisting entirely 15 tremities and being provided with notched por-` tions at corresponding points intermediate the of stamped out parts formed of hard fibrous ma ends of said straight portions, at least a portion terial and comprising, in combination, a ñat base of said side members also being provided with ring provided with a plurality of spaced-apart inwardly disposed notches substantially at the apertures therethrough, a plurality of side mem bers each provided with an end of reduced cross 20 junctions between the straight and curved por tions thereof, a top member attached to the con section fitting within and extending through one of said openings so that the end surfaces thereof are substantially co-planar with the bottom sur verging extremities of said side members, a brac ing ring provided with notched portions inter iitting with the notched portions of said side face of said base, said notched ends being pro vided With flange-like portionswhich overlie seg 25 members to restrain said side members against relative lateral movement, a light reflecting ele ments of said base ring within said openings to ment disposed within said side members and retain said side members and base ring inas provided with -one edge bearing against said base sembled relationship, said side members being ring and With an opposite edge anchored within provided with opposite ends having integrally formed connecting portions at their extremities, at least a portion of said notches, and means a fiat top member extending transversely of said vincluding a ñanged portion of said base ring for anchoring said element along said one edge. 9, A portablelamp guard comprising a base ring, a plu‘rality of spaced-apart side members provided with ends attached to said base ring, said side members having straight portions and side members and provided with spaced-apart openings therethrough throughwhich said con necting portions extend, said connecting portions being provided with flange-like .segments which overlie segments of said top member within said last-named openings to retain said top member and side members in assembled relationship, said side members also being provided with external curved end portions which converge at their ex tremities, at least a portion of said side members also being provided with inwardly disposed notched portions at corresponding points along 40 notches substantially at the junctions between the lengths thereof, a continuous bracing ring adapted to be telescoped over the said opposite ends of said side members and provided with internal notched portions interñtting with the notched external portions of said side members to restrain said side members against relative lateral movement, and a Waterproof and »ad hesive coating enveloping all exposed surfaces of all of the named parts of said guard. 7. A portable vlamp guard comprising a base r ring, a plurality of spaced apart side members provided with ends attached to said base ring, said side members having straight portions and curved end portions which rconverge at 4their ex tremities, at least a portion of said side members also being provided with inwardly disposed the straight and curved portions thereof, the extremities of said curved end portions of said side members being provided with integrally formed oppositely projecting ears which extend generally parallel to the straight portions of said side members, a pair of assembly rings disposed upon opposite’ sides of said extremities and re spectively provided with spaced apertures there through Within which said oppositely extending ears are anchored, a light reflecting element dis posed within said side members and provided with one edge bearing against said base ring and an opposite edge anchored within at least a por tion of said notches, and means for anchoring said element along said one edge. ` f _ RUDOLF POPP.