US1661784A

US1661784A - And john h

Info

Publication number: US1661784A
Authority: US
Publication date: 1928-03-06
Anticipated expiration: 1945-03-06

Description

March 6, 1928.`

, l G. E. BLAKE ET AL SPOTLIGHT Filed NOVe l1, 1922 Patented Mar. 6, 71928.

UNITED i STATES i 'PATENT OFFICE.

GEORGE E. BLAKE, OF SPRINGFIELD, MASSACHUSETTS, AND JOHN H. BRUNINGA, 0I' ST. LOUIS, MISSOURI, ASSIGNORS, BY MESNE ASSIGNMENTS, TO. HENRY HYMAN,

or NEW YoiaK, ii. Y.

SPOTLIGHT.

Application filedL November 11, 1922. Serial No. 600,272.

lamps, and more particularly to battery hand lamps of that type in which the beam is arranged t0 pleasure. n

In battery hand lamps, the spreading and concentratingof` the beam is accomplished by relative *movementpof the reflector and the lamp, the reflector being so constructed that whentliere is a .relative movement of the lamp and the refiectorr along thel axis thereof, the-.distribution ofthe light willbe Varied toeither project a, closely focused beam or. project a spreading beam. yTo secure such faction, lit vis .necessary that the movable partbe so guided as'to alwaysinsure correct alinement in order that dark spaces'and rings may be eliminated.

One of the-objects of this invention, therefore, is to provide a battery hand lamp in which the reflector ,is soksupported and guided for movement as to alwaysy keep kin accurate alinement with the lamp in its various positions with respect thereto.

Another object of this invention is to provide a batteryhand lamp in which the lamp `be concentrated or spread at itself willxbe so secured and fixed in' the casing as ,to permit free adjustment of fthe reflector head on theV casing and without ,innteriering with 4the .position `of thelamp itself.

Another. object of this invention is to provide a battery handflamp in which the lamp support is so mounted in 'the casing, as to not only vp ermit it to be readily ,detachedtherefrom, while at the same time providing' a firm li-'Xturewheii in place,fbut in which the connection` between the switch and the lamp is such a's tobe alwayswell made and to facilitate the` making ofthe same when,

after detachment, this support has beenl retail` description `taken in connection with the accompanying drawing, in which: v y

Figure 1 is a longitudinal section of a battery hand` lamp embodyingk this invention, tlie'switch being shown in elevation; and

Figures 2 and 3 are enlarged vviews of Referring to the accompanying drawing, 1 .designates a battery-'receiving casing which is, in this particular embodiment, made of' metal, vthe A'casing being expanded and formed to provide threaded ends 2 and 3., Thiscasing is arranged to receive abattery which, as usual, consists of a series ofk cells placed end to end in an insulatingV casing. Theswitch mechanism is in this particular embodiment i, of ,s the construction tact, one end of which is electrically connected with the casing l-and which is arranged to engage a Contact strip extending along but. insulated from .the casing and the switch by insulation 9.

Mounted in the upper end of the casing is a lamp support comprising a metallic cup 10 having a downwardly extending flange yor rim 11 and an insulating disc 12. Beaded on the insulating disc and projecting therethrough isa tubular metal structure embodyyshown and `described' in lPatent No. 15,249, lreissued,December 20, 1921, andcomprises,

ingy a threaded nipple 13 for` receiving the v lamp 14 and projecting above the support, While projecting below the support is an eX- tension 15 vwhich is closed by a cap 16 of insulating material on which the extension fisbeaded. This cap` of insulating material receivesasocket 17 having an end 18 arranged to be engaged bythe terminal of the battery. Sliding within this socket 17 is a plunger 19 which is forced toward the lamp terminal by a spring 20, it being noted that the plunger and the socket have interengaging flanges to prevent total separation of lIt will be seen that this conthe two parts. Y p struction provides ay bunter on the support :fork the battery while ythe spring pressed plunger provides ajcontact and a shock absorber. j f

The flangezl'l is surrounded by a ring or sleeve 21 fof insulating material, such as fibre, and over which the insulating disc 12 i also of fibre lies. It will be noted that the ybottom of the extension 2 provides a shoul- With a liner 23 of metal. Accordingly the strip 8 is arranged to lie between the flange 11 and theV sleeve, it being, however, noted that this strip as Well as the lamp are entirely insulated from the casing and even from the liner 23.. In order to secure the parts in place, there is provided a clamping ring or retainer 24 Which is arranged to thread into the end 2 and is provided with aliange 25 bearing on the disc l2 to securely clamp the parts Within the end' 2y and with the liner 23 against the shoulder 22. In order tov'permi-t ready manipulation oi the ring, it is struck up at various points as shown at 2G to provide lugs arranged to be engaged by the lingers.

The end 2 has threaded thereon the neck 27 of the reflector carrying head 28. This head receives a reflector 29 which rests on a ring-301 beaded on the head While on the reliector reststhe lens 3l; all of these parte are clamped together by a clamping ring 32 which is threaded on the reflector head and has av 'lang'e 33 taking over the lens. It Will be noted that` the reflector has a nipple 34 which, however, takes loosely over the lamp socket nipple 13 and thus is Wholly out of contact therewith. Tt Will be noted that the reliector and lens are firmly clamped in the head, While this head itself is mounted for adjustment on the end 2, the neck 27 being provided With a knurled rib 35 to permit ready adjustment.

The'- end cap 36 which is` also of metal has a threaded fiange 37 cooperating with. the threaded end This end cap carries the spring 38 which bears against and makes contact with the bottom ot the battery 4 and -holds the same against the bunter 1S. This spring is mounted on a cover or closure 39, bei-ng secured thereto by struck-up portions 40` through which convolutions of theI spring pass. This closurel takes into a flanged cup 4l so as to provide av spare-lamp casing which is fastened to a disc 42 of insulatingY material by a large tubular rivet 43 the disc of insulating material being sprung into a bead 44 on the cap, While the tubular rivet` bears on the cap itself and thus electrically connects the cap and the casing With the spring 33. Mounted Within the cup and' the Y closure is a clip 45 which is also secured by a tubular rivet 43 and Whichv is arranged to receivev and carry a spare lamp 46.

Upon referring more particularly to Figures l and 2, it will be noted that the lamp is Yfirmly supported in the casing so as to be fixed therein and with respect thereto, While the battery is firmly held against the bunterA by the spring 38. The reflector head'is,.how ever, mounted for adjustment along the casing; accordingly by rotating thel reiiector the relative positions of' the reflector andthe lamp may be varied toV either concentratel or spread the beam. ln view of the fact that the lamp is Wholly supported Within the casing and independent of' the reflector, this adjustment can be readily accomplished, and by making a suliiciently tight joint between the endk 2 and the neck 27, any adjustment abletlierelionr .in order tol clear the casing.,I ior by removing the clamping ring 24,. the

entire lamp support can be readily removed.. This leaves the end oli the casing entirely open'so that il a battery does become stuck as'y frequentlyl happens, this battery can be' pushed out of the endl of the casing. t will' be noted, however, that the strip 8 is. straight and has no hooks; accordingly thisstrip will not` interfere with the ejection or replacement ofr a battery. Furthermore the construction is such that the lamp support can readily be placed back. in the casing as the endl of they stri-pi 8 will readily slip between; the fiange ll and the insulating sleeve 2li. It Will be noted that the insulating sleeve 2l.' is faced with metal; this is necessaryr for the reason that insulating material varies in its dimensions inv accordance with atmospheric conditions; however, by providing metal liners-andi facings, the desired. accurate fit can readily be' obtained with interchangeability of parts and quantity production..

Upon referring to Figure 3, it will be Seenthat there is provided an eXtra lamp holder which enables: a defective lamp or broken' lamp to' be readily replaced.. At the Same time this lamp holder provides a convenient mounting for the spring. When it is desiredx toA secure an eXtra lam-p, the cap is? removed and by then pulling theJ closure 39' it is, therefore, tobeA understood that this.

invention isv not to be' limited tothe specific details shown and described.

Having tl-'rus described the invention, what is claimed is l'. A battery hand lampcomprising, a;

battery receiving casing, an insulating ringV fitting the lamp end of said casing, a support havingI afl'angefitting said ring, af lamp in said support, and a contact stripbet-Ween said flange and said ring.

42. A battery hand lamp comprising, a#

battery receivingl casing, aninsulating ring itting the lamp end of sald casing, a snp Y llO port having a flange fitting` said ring and fixed in said casing, a lamp 1n said support,

and means on said support adapted to rea lamp in said support, independent means engaging the inside oit said casing adapted to clamp said support against said shoulder, and a circuit connection to said support.

4. A battery hand lamp, comprising, a battery receiving casing having a shoulder spaced from the end thereof, an insulated lamp support resting against said shoulder, a lamp in said support, a clamping ring engaging the inside of said casing adapted to clamp said support against saidr shoulder, and a circuit connection to said support. r

5. A battery hand lamp, comprising, a battery receiving casing having a shoulder spaced from the end thereof, an insulated lamp support resting against said shoulder, a lamp in said support, independent means engaging the inside of said casing adapted .to clamp said support against said shoulder,

a contact rim on said support, and a circuit connection to said rim.

6. A battery hand lamp, comprising, a battery receiving casing vhaving a sl'ioulder spaced from the end thereof, an insulated lamp support resting against said shoulder, a lamp in said support, independent means engaging the inside of said casing adapted to clamp said support against said shoulder, means on said support adapted to receive the thrust of the battery and 'to yieldingly connect the same with said lamp, and :i circuit connection to said support.

7. A battery hand lamp comprising, a battery-receiving casing, a lamp support mounted in one end of said casing and abutting thereagainst, a reflector head mounted for-'adjustment on said end 0f said casing, and a clamping ring for securing said support in abutment with said casing.

8. A battery hand lamp comprising, a battery-receiving casing provided with a shoulder near one end, a lamp support mounted in said end and against said shoulder, a clamping ring for securing said support, and a rellector head mounted for adjustment on said end of said casing.

9. A battery hand lamp comprising, a

-metallic battery-receiving casing, a lamp support mountedin one end ot' said casing and having aV Contact flange, la removable retainer engaging said casing for securing said support, an insulating sleeve between said flange and said casing, and a circuit connection to said flange.

10. A battery hand lamp comprising, a metallic battery-receiving casing, a lamp support mounted in one end of said casing and having a contact flange, a removable retainer for securing said support, an insulating sleeve between and separating said flange and said casing, and a contact strip between said `tlange and said sleeve.

Intestimony whereof I aliiX my signature this 18th day of September, 1922.

GEORGE E. BLAKE. In testimony whereof I affix my signature this 8th day of September, 1922.

JOHN H. BRUNINGA.