Oct. 1, 1946. v - _ ‘ v } J. J. MALLOY MULTIFLASH LAMP ' ‘ 2,408,469 DEVICE Filed Nov. 1, 1943 ' ‘ 2 Sheets-Sheet 1 Fig.1. Inven'tor : John J. MaLlOH, . His A'b't'of'hea. Oct. 1, 1946, ' J. J. MALLOY v MULTIFLASH LAMP 2,403,469 DEVICE ‘ Filed Nov. 1, 1943 v ‘ 2 sheets-sheet‘ 2 /4 Fig 2. v . 'lnven'tor'. John J. MaLLdH, ‘ His A'ir’lfotneg. _ 2,408,469 Patented 0ct'.1,1946 . UNITED‘ ‘STATES PATENT-I OFFICE‘ T 2,408,469 MULTIFLASH LAMP DEVICE John J. Malloy, Cleveland Heights, Ohio, assignor I ‘to General Electric Company,v a corporation of New York Application November 1, 1943, Serial No. 508,483 8 Claims. (01. 240-37)‘ My invention relates to illuminating apparatus for photographic purposes and its principal ob-v ject is to provide an apparatus or device of this kind accommodating a plurality of ?ash lamps and capable of emitting a number of ?ashes of light in rapid succession to enable a photographer to take a series of pictures in a short time. Fur December 29, 1942, to Marvin Pipkin. ‘Another speciesof ?ash lamp comprise a compact body of‘ combustible material supported in the bulb and‘ is disclosed in U. S. Patent 2,291,9,83,'issued. Aug gust ,4, 1492,v to Marvin Pipkin,‘ Both types ‘of lamps may be used with my multi?ash device for producing ?ashes of actinic light useful for pho-. tographic purposes. . ther objects and advantages of the invention will As shown in Fig. 3 of the drawings, the rotary appear from the following detailed description lamp holder H is mounted for rotation on an of species thereof and from the appended claims. 10 axle l8 of electrically insulating material which In the drawings accompanying and forming is immovably supported by the two arms I3 and part of this speci?cation, a species of my inven 20 of the carrier or support 2| by the bolt 22 tion is shown in which Fig. 1 is a side elevational at the end thereof supported by arm |9 and the view of the multi?ash lamp device; Fig. 2 is a two spaced bolts 23 and “Which pass through similar View of the device rotated 180° and Fig, 3 J is a fragmentary‘ sectional view along the line 3--3ofFig.1. " 7' ‘ " 7' A Referring to Fig. ‘1 of the drawings, my’multi ?ash’ lamp device comprises a re?ector l0 and support plate 25, which plate 25 is bolted'to the‘ arm 20. Interposed between the axle |8g and the plate 25 is a metal washer. 26.v The rotary holder H has projections orjpins .2‘!v thereon equal innumberfto the lamp sockets, 1 and ex; tending inthe direction‘ of the_plate.,25.' v)Aypawl 28‘ (Fig. 2) 'is, disposed between, th'e'holder ‘II and the platei25 land isprovided with a ‘hooked end portion 29. for. engaging ‘the "pins, 211 when the pawl" 28 is movedin ,a direction away. from lamp supporting means‘ || mounted for rotation about an axis substantially normal to the axis of the re?ector |llwhenlthe re?ector‘ is in a lamp enclosing position;v The lamp support or rotary holder || is'provided with a plurality of sockets |2 suitable for accommodating‘thezbayo 25 the re?ector l0. "Part'ofjplate 25 is brok'enaway net bases |_3 of a like number of ?ash lamps>|4 in Fig. 2 to showportion 29. of‘ pawl 28‘ and a which lamps are supported by said holder II pin 21. The oppositeend 30. otithe pawlj'28 is with their axes radially disposed to theaxis of pivotedon. the rod 3| secured to the'leverarm rotation of the :holdenvThe re?ectorIO, which 30 32 and passing through the slot 33 in the plate is preferably of the parabolic typejihas acir 25;v The‘pawl 23 rests against one of the‘pins oular opening, indicated at I5, at’. thevertex 2lqwith thehooked end 29 thereof spac'edan thereof which is slightly larger in diameter than appreciable distance from the vpin 21 on which the largest ¢outsidejdiameter of the lamp bulbs itrests when the various parts of the device are IS. The re?ector"; I0. is movable in a circular are I in theposition shown in Figs. 1 and 2 with the about the pivot 1'! which is located in a plane normal to the’ axis ofrtheelampj I4 enclosed by the re?ector l0, and which plane intersects said lamp axis betweenthe lamp base _; |3and the largestdiameter-part vof the lamp bulb l6- Thus, the re?ector |0 may be moved "from its normal lamp enclosing position toa position, indicated in dot-dash linesv in Fig. 2, inswhichit is out of the path of movement of the lamps l4 as the latter are advanced successively by the rotary holder || intor'positionto be-enclosed by‘the re ?ector l0 when the latter is returned to its nor mal position,_shown'jin full; lines in Figs. 1 and 2. The ?ash‘lamps] |_4 removably mounted in the rotary holder sockets |2 comprise a readily com bustible material and a supporter of combustion contained in the light transmitting lamp bulb‘lG. Such lamps ,a‘rermanufactured in large numbers and one species thereof comprising a readily combustible,'loosely arranged.materialu?lling the . ‘bulb is disclosed in U. S.~Patent 2,306,563, issued _ ' re?ector _| 0 enclosing a lamp 4. - The lever arm 32' is pivoted at 34 on_ the plate 25 so as to‘ be movable in a circular arc in the direction indicated by the arrow (Fig. 2). The movement of arm 32 in the direction of the ar row and in the opposite direction is limited by ' the ends of arcuate slot 33 in plate 25. The arm 32 is provided with a handle 35 normal thereto. The pivoted end of arm 32 has a projection 36 '7 extending at an acute angle thereto which pro jection 36 has apin 31 engaging with a slot 38 i in the ‘connecting rod 39 which is pivoted at 49 on the'end portion 4| of re?ector support mem ber.'42. The member 42 is'pivoted at I‘! between its end portion 4| and the re?ector l0 and is disposed between the/plate 25 and the support bracket 43 secured to plate 25. ‘The pivot_pin H is supported by bracket 43_and plate 25. 'A stop “provided with an adjustable setjscrew 45 is attached to bracket 43 ‘for supporting‘re 2,408,469 3 4 nector 10 in proper position about the lamp M. A spring 46 is attached to end 4| of support 42 at a point on the far side of pivot 40 from pivot l1. The opposite end of the spring 46 is at tached to the free end of pin 31 on projection located that it arrests the motion of handle 35 when the next lamp to be ?ashed has been moved into proper position. When the handle 35 has reached its limit of travel in the direction of the arrow (Fig. 2) the re?ector I3- is in the position indicated by dot-dash lines in this ?gure. The 36 of arm 32. The arm 32 has an outwardly curving portion 41 which passes through an arcuate slot in the handle 35 is then moved in the direction opposite to that indicated by the arrow to returnthe re cover 48 (‘shown broken away in Fig.v 2) attached ?ector H! to its lamp enclosing position and the to plate 25. Thus, handle 35 on arm 32 is 10 pawl 23 to a position in which the hook 29 is accessible for manual manipulation. spaced from the next pin 21 to be engaged there‘ As shown in Fig. 3 the insulated wires 49 and by, which positions are shown in Figs. 1 and 2. 50 for connecting the apparatus to a source of A spring 59 secured to the part of the pivot pin electrical energy, such as a battery of cells, suitIll and the arm 32 outside the cover 43% is provided able for igniting the lamps 1.4 are attached, lie.“v for quickly returning the arm 32 and the elements spectively, to the bolt 24 and to the metal sleeve connected therewith to the position shown in Figs. 5| disposed in a cavity in the axle IS. The sleeve 1 and 2 after a ?ashed lamp has been replaced by El and the exposed portion of wire 50 are held in an un?ashed lamp. The re?ector i3 is thus re place in axle [B by the set screw 52 which also turned; to its lamp enclosing position faster holds the spring contact 53 in place and connects than it would be by gravity alone by the pin 3'! it electrically to the wire 50. The spring con on. projection .33 engaging the end or slot 38 in tact 53' extends partially around the axle l8 and member 38 to impress the force exerted by spring the free end portion 54 thereof engages only with 59 as a turning moment on the pivoted re?ector theycenter contact 55 of the bayonet base I 3 of that lamp l4 enclosed by the re?ector l0- Thus, 25 support 42. During the return motion of the pawl 28 and until the holder H is to be rotated again the free end, base contact engaging portion 54 of for lamp changing purposes, the holder ! l is held contact 53 is disposed so as to intersect the pro stationary .by axle l3 to which it is frictionally longation of the re?ector axis when the reflector ?tted. The above described operation is repeated I0 is in its lamp enclosing position. The sockets I2' in rotary holder II are of the conventional. 30 until all the lamps l4 have been ?ashed. The ?ashed lamps may then be removed from sockets bayonent base accommodating type and com l2 and replaced by un?ashed lamps. prise a spring member 56 for releasably locking The multiple ?ash lamp device described above the lamp bases l3 therein. The outer shell con may be temporarily or permanently secured to a tacts of the lamp bases 13 are electrically con nected to the wire 49 by bolt 24, plate 25, which 35 camera by the carrier 2 I. What I claim as new and desire to secure by consists of metal, spring contact 51 which is bolt Letters Patent of the United States is: ed thereto at 58 and presses against the metal 1. A multiple ?ash lamp device comprising a rotary holder I l , and by the metal shell of sockets concave re?ector of sufficient depth to substan are engaged. The wires 43 and. 50 may be con 40 tially surround and enclose a flash lamp, means for supporting a plurality of ?ash lamps and ad-v nected across the electrical energy source in the vancing them successively first into and then, conventional manner, a switch being provided in after being ?ashed, out oi said re?ector through the circuit, as is customary, for controlling the ignition of the lamp l4 included in the circuit. the position normally occupied by the re?ector, The switch may be operated by hand or by syn 45 means supporting said re?ector and said lamp chroniz'ing apparatus which also controls the supporting means in juxtaposition, and means I2 with which said outer contacts of the bases I3 operation of the camera. shutter. I The operation of the above described multi ?ash lamp device is as follows: After the lamps I4 have been inserted in the sockets [2, the lamp l4 enclosed by the re?ector In is ready for ignition by the electrical appa= ratus. described above. When this lamp has been ?ashed it is replaced by an un?ashed lamp by manually moving handle 35 in the. direction 0.1.’ the arrow (Fig. 2) until the motion of arm .32 is stopped by rod 3| engaging with the end of slot 33-. The re?ector Ill is moved about its pivot pin‘ for displacing said re?ector out of the path of movement of said lamps upon actuation of the lamp advancement means. 2. A multiple ?ash lamp device comprising a concave re?ector of su?icient depth, to substan: tially surround and enclose a ?ash lamp and hav-. ing- an axis, rotatable means for supporting a plu-. 55 I? by the spring .46 attached to portion 4| of re ?ector support 42 and to pin 37. When the handle 35 has been moved a sufficient distance (which is less than the full distance of its travel) to bring the hook end portion 29 of the pawl 28 into engagement with the pin 21, the re?ector [0 has been moved by the means described above 65 an angular distance such that rotary holder I! may start to rotate without striking the lamp M to bemoved out of the re?ector or the lamp M to .be moved into the re?ector. .As the handle is moved further in its arcuate path, the holder 70 (1 is rotated by the pawl .zssecured to arm 32 by pivotrod 3| through a suf?oient angular distance to bring into position to be enclosed ‘by the re ?ector 10 the .lamp l4 next to the ?ashed lamp. , rality of ?ash lamps and advancing them suc cessive'ly ?rst into and then, after being ?ashed, out of said re?ector through the ‘position nor mally occupied by the re?ector, said means being arranged for rotation about an axis perpendicular to a plane including said re?ector axis, means supporting said re?ector and said lamp support ing means in juxtaposition, and means for dis placing said re?ector out of the path of move ment of said lamps upon actuation of the lamp advancement means. 3. A multiple ?ash lamp device comprising a concave re?ector of suf?oient depth to'substan tially surround and enclose a. ?ash lamp, means for supporting a plurality of flash lamps and advancing them successively ?rst into and then, after being fleshed. out 0i said re?ector through the position normally occupied by the reflector, said re?ector being pivotally mounted, means. sup-v porting said re?ector and said lamp supporting The slot 33 in plate 25 is of such size and is so 75 means in juxtaposition, and means iOr moving said re?ector about itspivot and out Qithe path 2,408,469 5 6 position, said holder being arranged to advance, successive lamps ?rst into and then, after being ?ashed, out of said re?ector through the position normally occupied by the re?ector, and means for or movement of said lamps upon actuation of the lamp advancement means. 4. A multiple ?ash lamp device comprising car rier means for supporting a plurality of ?ash displacing said re?ector out of the path of move lamps, a concave re?ector movably supported ad ’ ment of‘said lamps upon actuation of said holder. jacent said carrier means and of suf?cient depth '7. A multiple ?ash lamp device comprising a to normally surround and enclose one of said concave re?ector of sufficient depth and so dis lamps, and actuating means arranged to ‘syn posed as to substantially surround and enclose chronize advancement of successive lamps ?rst 10 a. ?ash lamp, means for supporting a plurality into and then, after being ?ashed, out of said of ?ash lamps and advancing them successively re?ector together with displacement of the re ?rst into and then, after being ?ashed, out of ?ector out of the path of movement of the lamps said re?ector through the position normally oc during each advancement thereof. ‘ cupied by the re?ector, means supporting said 5. A multiple ?ash lamp device comprising car re?ector and said lamps supporting means in rier means for supporting a plurality of ?ash 15 juxtaposition, said re?ector having a lamp-pass lamps, a concave re?ector movably supported ad ing opening at its apex and means for displacing jacent said carrier means and of su?icient depth said re?ector out of the path of movement of said to normally surround and enclose one of said lamps upon actuation of said lamp advancement lamps, and actuating means comprising a lever 20 means. ' of the second class arranged to synchronize ad 8. A multiple ?ash lamp device comprising a vancement of successive lamps ?rst into and then, concave re?ector of suf?cient depth to substan after being ?ashed, out of said re?ector together surround and enclose a ?ash lamp, means with displacement of the re?ector out of the path " tially for advancing a series of ?ash lamps successively of movement of the lamps during each advance 25 ?rst into and then, after being ?ashed, out of ment thereof. said re?ector through the position normally oc 6. A multiple ?ash lamp device comprising a cupied by the re?ector, means supporting said rotary holder having a plurality of lamp accom; re?ector and said lamp supporting means in modating sockets radially disposed about its axis juxtaposition, and means for displacing said re of rotation and a concave re?ector of su?icient ?ector out of the path of movement of said lamps 30 depth and so disposed as to substantially sur round and enclose a lamp in said holder, means supporting said holder and said re?ector in juxta upon actuation of the lamp advancement means. JOHN J. MALLOY.