US1763898A - Hand lamp - Google Patents

Description

R.\A. LORIG June 17, 1930.

HAND LAMP l Filed April 2o, 1929 2 sheets-'sheet 1 me # mm Jne 17, 19/30.

Filed April 20. 1929 R. A. LORIG HAND LAMP 2 Sheets-Sheet 2 INVENTOR /aer Lor/19 BY V M1 ATTORNEYS Patented June 17, 1930 LNEP S'E'TES PATENT @FFQE ROBERT A. LORIG, OF MADISON, WISCONSIN, ASSIGNOR T BURGESS BATTERY COM- IPANY, OF llIADISON, WISCONSIN,

.A CORPORATION OF WISCONSIN HAND LAMP Application iled April 20,

This invention relates to improvements in hand lamps and more particularly to improvements in holders for the bulb sockets of hand lamps of the type disclosed and claimed in the Zook Patent No. 1,701,093 granted February In the Zook patent there is disclosed a hand lamp in which the bulb is carried by a sep-Y arable head pivotally mounted on the battery and adapted to be moved from an operative position in which the bulb is electrically connected to the battery to an inoperative position in which the bulb is disconnected from the battery. The holder includes a backing member which serves as a reflector when in operative position and as a closure member for the lamp when in inoperative position.

In my construction, the backing member of the Zook device is provided with a pair of depending cams between which the bulb socket is mounted and which also receives a wire bail on which the holder is pivoted.

The bulb socket may he pivoted between these cams as disclosed and claimed in the copending application ot'I-Ialvard F. Nvgard. Serial No. 286.620. tiled June-19, 1928) and may be arranged so that it will be compressed bv the cams when in one position toy prevent removal ot the bulb trom the socket. Th en the bulb socket is moved to a second position this compression is released and the bulb mav be then removed from the socket. VIn normal operation the bulb and socket are arranged in the first mentioned position with respect to the backing member and are onlv moved to the second position when a new bulb is to be inserted in the socket. The present invention comprises positive means for retaining the bulb socket in operative position with respect to the holder.

In ,carrying out my invention I provide a holder or backing member ot the general typev disclosed in the Zook patent having depend'- ing cams which holder is adapted to be received in the cup at the top of the battery and to be pivotally mounted therein to permit it to assume an operative or inoperative position and connect or disconnect the bulbto the battery. The holder may be provided with'a bead or rolled. edge where the earns join the 1929. Serial No. 356,827.

.body'portion In connection with this holder I provide a split socket having a pair of pivots adapted to be received in openings in the cams. The cams are provided with lugs to compress the socket when the socket is `arranged' in a position parallel to the backing member. The socket is further provided with outwardly flaring flanges which are adapted to be received in the rolled edges of the backing member and lock the socket in this position so that it will not accidentally swing on its pivot in the bullo holder and interfere with the operation of the lamp. The flanges are so designed that the socket can be swung on its pivot when desired for the removal oL an exhausted lamp bulb and the insertion of a new one.

One form ot' the invention is shown in the accompanying` drawings.

Fig. 1 ot the drawings illustrates in part sectional elevation the whole of the batter,` hand vlamp with the incandescent bulb or bolder in solid lines i"or the operative position and in dotted lines for the inoperative position; Y

Fior. 2 is a similar view ot' tbe separable head with the socket in full lines tor the nor` mal position and in dotted. lines to illustrate its position when a bulb is being inserted or removed; Y

' Fig. 3 is a plan view ot the separable head with a backing member shown in section:

Fig. 4 is a side elevation oi the backing member before the bulb socket is inserted;

Fig. 5 is an end elevation;

Fig. 6 is a detailed, sectional view on line 6-6 of Fig. 4; Y

Fig. 7 is a plan view of the bulb socket be-V fore its insertion in the backing member;

Fig. 8 is a vertical, sectional view of the bulb socket; and

Fig. 9 is a rear elevation thereof.

In the preferred form of my invention, I employ a battery consisting of one or more dry cells 1 and 2 electrically connected as by connector 3. The battery is arranged in Va suitable carton 4, which 'may be of paper, and which projects above the top of the dry cells to form an oval cup. In this cup I place a Y metallic cup 5, which is electrically 'con-s MQ Y nected to one of the poles of the battery,

preferably by soldering to the negative can as y 4 and the lower ends of cells 1 and 2 may be imbedded therein. rllheside edges of opening 7 are bent up, as at 12, for a purpose to be' explained hereinafter. At the end'of the cup opposite to opening 7, wings 13 are formed as yby punching in the sides of the cup `5, the purpose of these wings to be explained hereinafter. A small lug 14 is formed on the bottom of thecup at the end removed from opening 7, as by stamping the metal.

vAn incandescent bulb 15 is mounted, as by screwing, in bulb socket 16 which is shown in detail in Figs. 6,7, 8 and 9. The socket 16, preferably of sheet metal, is cylindrical in form with one side longitudinally open, as at 17. The sidesv of the bulb socket are provided with outwardly projecting lugs 18 adapted to form pivots. The edges of opening 17 are provided with upwardly and outwardly flaring flanges 19 by means of which the bulb socket is locked in position in the holder. The side ofthe socket opposite the `opening 17 Vmay be provided with'a circular opening 20. Grooves or threads 21, conformying tothe pitch of the threads on the base of the bulb 15, are provided in the wall'ofV the socket.Y Y .Y j L The lbulb socket 16 is' carried by aV holder consistingrof a backing member 22 which is fashioned, as by stamping, from a single piece ofmaterial, preferably sheetmetal, and has two Aintegral cams 23 depending from the Vsides thereof (see Fig. t). Each cam 23 contains a raised portion 24e in which a hole 25 is'stamped or drilled-` f Adjacent one side of the raised portion 2l yand spaced slightly therefrom is a hole 26. Adjacent the other side of raised portion 24 is an inwardly stamped lug 27 which may be" longitudinal as shown, or may be round. Socket 16 is mounted between cams 23 by inserting lugs 21 into holes 26. Socket 16 is thus free to pivot into either of the positions shown in Fig. 2 of the j drawings so that its axis is parallel or perpendicular to backing member 22. In normal operation the socket is in the full line position shown in Fig. 2 of the drawings and when in this'position it is compressed by lugs 27 suliiciently to make it diflicult to turn bulb 15.l The compressibility of socket 16is facilitated by circular opening 20. Lugs 27 exert compression upon the sides of Vsocket y16 slightly to one side of their middle portion. When the lamp is in normal operation it is desirous that the bulb socket be retained in the full line position shown in Fig. :2 of the drawings and flanges 19 are provided' for this purpose. As shown, cams 23 are arranged in planes slightly inwardly of t the backing member as clearly shown in Figs. 3 andv 6 of the drawings providing a bead or rolled edge at the junction ofthe cam and backing member which forms a recess or depression 23 on the inside of the holder. Flanges 19 are flared upwardly and outwardly soY that theirouter edges are beyond the wall of the socket and are adapted Vto be received in these recesses at the inneredges of cams 23 as clearly shown in Fig. 3 of the drawings. rllhis securely locks the bulb socket in operative position and prevents it from accidentally assuming the inoperative position shownin dotted lines yin Fig. 2 of the drawings. To remove the bulb from the socket, the ythumb or linger is wedged between the bulb 15 and the backing member 22 and the socketswunof to the dotted line position shown in 2of the drawings in which poy sition ythe bulb can be readily unscrewed from its socket as it is then free yfromfthe pressure exerted by lugs 27. Y

Looped spring 31, preferably of'wire, isr

ots on this bail when it isy flipped from the operative position shown in fulllinesin Fig. 1 of the drawingsto the inoperative position shownin dotted lines in Fig. 1 ofthe drawings and vice versa. Y

The holder cooperates with the battery having the cup y5 mounted as described by ne side edges of.

slipping theY looped spring vwire 31 under- Y neath wings 13y and over 'lug 14 so that the base of bulb '15 will contact with the terminal of'` the battery exposed through opening 7 whenthe head is in the position shown in solid lines in'Fig. 1.l The'pressure of wings lmoves from one position to the other the corners of cams 23 slide on the bottom of cup 5 and pass lbeyound theV opening 7. The` turnedup edges 12 prevent the corners of cams 23 from slipping into opening 7. To

lput the hand lamp in the inoperative position the backing member22 is flipped forward to theposition shown by broken lines in Fig. 1. The looped spring 31, which remains in practically the same position during thisoperation, by its cooperation with lug 14, prevents the backing member 22 from interfering with the sides of cup 5 which are always in close proximity. The end terminal of bulb 15 is then no longer in contact with exposed pole 8 of the battery, and the bulb is no longer lighted. The looped spring 31 still acts to maintain the holder firmly in position. The corners of cams 23 are so shaped that when the holder is flipped into either position it assumes such position with a snap since the spring pressure is greatest at the intermediate position. This insures against the holders being in any other position than the operative or the inoperative positions and, furthermore, prevents the holder from being readily moved into the operative position to accidentally light the bulb while the hand lamp is being carried in the pocket or elsewhere. When the holder is in the inoperative position, the backing member 22 covers the top of the cup, fitting very closely along the edges of the cup, and forming a closure therefor. Lip 32 projects slightly beyond the end of cup 5 as shown in dotted lines in Fig. 1. The lip 32 thus acts as a stop for the holder when it has reached the proper inoperative position and protects the bulb against injury by shock during the act of iipping the holder into the inoperative position or in the event that the hand lamp is accidentally struck against a rigid object. When in the operative position backing member 22 acts as a reflector and may be polished or plated to enhance its value in that respect.

Repeated operation of the holder exerts a hammering effect upon pole 8 of cell 2 and, when the cells rest upon the bottom of carton 4, the hammering tends to drive cell 2 lower than cell 1 with the result that the end terminal of bulb 15 may soon fail to make contact with pole 8. Layer of sealing material 11 provides a more rigid base for the cells and overcomes the above named objection.

I claim:

1. A separable head for a hand lamp comprising a holder, cams depending from the sides of said holder, a bulb socket pivotally mounted between said cams, and outwardly flaring flanges formed on said socket and adapted to engage said holder to retain said socket in operative position.

2. A separable head for a hand lamp comprising a holder, a socket pivotally mounted therein and adapted to be moved into positions substantially parallel and substantially perpendicular respectively to said holder, and outwardly flaring flanges formed on said socket and adapted to engage said holder to retain said socket in said parallel position.

3. A separable head for a hand lamp comprising a holder, a socket pivotally mounted therein and adapted to be moved into positions substantially parallel and substantially perpendicular respectively to said holder, and projections carried by said socket and adapted to engage said holder when said socket is in said parallel position to prevent movement of said socket on its pivot.

4. A separable head for a hand lamp comprising'a. holder, cams depending from the sides of said holder, the junction of said cams and the body of said holder forming a bead, a bulb socket pivotally mounted between said cams, and outwardly flaring flanges carried by said socket and adapted to be received in said beads to retain said bulb socket in operative position.

In testimony whereof I aiix my signature.

ROBERT A. LORIG.

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