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Publication numberUS1518575 A
Publication typeGrant
Publication dateDec 9, 1924
Filing dateDec 24, 1921
Priority dateDec 24, 1921
Publication numberUS 1518575 A, US 1518575A, US-A-1518575, US1518575 A, US1518575A
InventorsEaton Richard Max
Original AssigneeEaton Richard Max
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Foousing hand searchlight
US 1518575 A
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Description  (OCR text may contain errors)

EATON FOCUSI NG HAND SEARCHLIGHT 1921 2 Sheets-Sheet 1 Filed Dec. 24

ATTORNEY Dec. 9 7 1924- Dec. 9, 1924. 1,518,575

RFM. EATON FOCUS ING HAND SEARCHLIGHT Filed Dec- 24, 1921 2 Sheets-Sheet '2 A TTORNE V Patented lil es. ll,


Applicati n filed December 24, E821.

To 1123 whom it may concern;

Be it known that l, Bromine MAX Enron, a citizen of the United States and a. resident of Niagara Falls, in the county of Niagara, tate of New York, have invented certain new and useful improvements in Focusing Hand Searchlights, of which the following is a specification.

The predominating object of this invention is to provide an electric Searchlight with means for focusing the lens with res ect to the lamp bulb, in a manner enabling t e user to project rays of light upon (listent objects, as often required by motorists in reading signs on roads, house numbers, etc., by policemen, hunters, campers and others who have found the ordinary flashlights to be deficient in range of light projection.

Another object is in the means provided by which the bulb carrying head may be removed from the casing, facilitating the removal of the battery without danger of damaging the bulb or disturbing the focal adjustments.

A further purpose is in the provision of means for readily removing the reflector when exchanging lamp bulbs, thus preventing damage to the reflecting surface.

A still further object is to furnish means by which extra bulbs may be safely carried within the casing until required.

These and other like objects are attained by the novel construction and arrangement of parts hereinafter described and shown in the accompanying drawings, forming a material part of this disclosure, and in which Figure 1 is an elevational view showing the fieshlight assembled.

Figure 2 is a perspative View showing the relation of essential parts.

Figure 3 is a transverse partial sectional view of the bulb cerryin head. t

Figure is a sections view of the bulb contact disc, taken on the line H of Figure 3.

Figure 5 is a top plan view of the battery holding spring assembled to the lower cover.

Figure 6 is is partial sectional view taken on line 6-6 of bigulre 5.

Referring to the drawings in detail, the numeral 10 designates a. hollow cylindrical casing of fibre, rubber or the like, having a thin metal ferrule 11 secured at the lower end, provided with coarse pitch screw Serial No. 524,650.

threads eugageuble with a similarly threaded cover 1'2, having a knurled head 13 at the bottom edjwent the thread.

A container 14 consists of a pair of an- 0 nular shells 15 end-16 slidably engaged one with the other, and interiorly of the container, adjacent the bottom or". the inner shell 15, is e U'shaped spring clip 16 adapted to resiliently hold an extra lump bulb 1? which can be substituted for the bulb in use in an emergency.

A. spring 18 supports a concave annular disc 19 oil greater diameter than the inside of the cover 12, preventing metallic contact with the casing cover, and a tubular rivet 20 provides means by which the ele ments l5--l618 end 19 are concentrically held in the cover.

Formed integrally with the top portion of the shell 16 are a plurality of raised clip elements 22' engaging in their openings 23, the terminating base coil oi a conical spirally wound compression spring 24.

Secured to the upper or opposite end of the casing 10 is another-ferrule 2,5 screwthreaded along its outer portion, as at 26, and provided with a. locking means consisting of an inturned flange 2?, slotted as at 28, and having diagonally opposite flange elements 29 turned down eccentrically with respect to the out-side of the ferrule ring.

Engageeble with the above described momher, in the manner of a bayonet lock, is an annular fibre plate 30 having a pair of radial 9G slits 31, their diagonally opposite corners 32 being bent downward into position to pass under the flanges 27.

A metallic lump holder 35, having a reducod step 35,is secured to the underside of 9 1 the plate 30 by tubular rivets 36 the step 35' passing upward through an unthrezided opening formed in the plate 30 and has an inturned bead 37 adapted co-engage the outside of a. screw-threaded lamp socket for 1-1..- rule 38.

Frictionally held in the large step 39 of the lamp holder, are a pair of fibre insulating plates 40 and 41, each being rovided with concentric annular openings, tie openlu ing in the plate &0 being receptive of the. contact end 42 of a lamp 4'5.

A spring contact 46, engageeble with the contact end of the lamp, is secured at one end to the underside of the plate l0.

Within the opening, in. the adjacent fibre plate 41, is a metal shell 48 having a. flange tery.

49 engaging the contact spring e6. The era tending end of the shell 48 is contactable with a terminal 50 or a dry cell flashlight battery 52, engaged within the body casing 10, and forced into contact with the shell &8 by the conical spiral spring Qt acting against the lower or bottom end of the bathn annular metallic lamp head casing, having a screw-threaded neck 60, is engaged with the flanged ferrule 25, and has a knurled bead 6i, adjoining which is an arculately expanded annular shell 62 having a bottom opening, its edge being reentrantly turnedforming a head 63 adapted to be securely clinched to the knurled bead 61. i

A flange element 64 at the upper part oi the shell 62 supports a band insulator 65 intor-adjacent the anew-threaded slot 66 lnteriorly of the casing isa concave parabelie: reflector 68, having a burnished silver reflecting surface and provided with an opening at its axial end adapted to engage with the element 35' of the lamp. holder.

' The front edge of the reflector is prevented from contact with the metal casing by the insulating band 65. I

A; concave-convex lens 70 rests upon the reflector and insulating collar and is secured to the lamp head by a retaining ferrule 72 engaging the screw threaded element 66.

A switch frame 75 is secured to the bodycasing 10 by rivets 76 and has a central sliding member 77 engaged therewith and connected interiorly with a longitudinally disposed, current carrying bar 78, ofi'set at one end and adapted to conduct current from the lamp holder 39.

Another current conducting bar (not shown) is connected interiorly of the casing by one of its ends to the lower portion of the switch 75, the end being adapted to make contact with the outer portion oi the lamp container 16.

From the foregoing it, will be seen that the flow of electrical current to and from the battery is conducted in such manner as to prevent short circuiting and premature discharge of the battery or burning out of the bulb by accidental contact with metal bodies as frequently happens with lamps of ordinary construction.

By reference to Figure 3 it will be seen by removing the lens ring 72 and the lens 70, the reflector may he removed from the head without interfering with the bulb or disarranging the focal adjustment of the lens.

it has been found desirable to construct a flashlight that has means by which the focal distance between the lens and the lamp may be increased in a manner aC plied to concentrate and project light rays over distances greater than the usual lamp is capable of projecting. This feature is accomphshed by the simple operation of holding the -l errule 25 from turning and rotating the lamp head, thus unscrewing the head from the ferrule 25 a greater or less amount according to thelength of rays desired.

It will also be seen that if a wide, hroadr casting light be required the head may he entirely removed leaving the bulb uncdv cred and the lam? used as a candle stick.

The path of e ectric-current through dhe lamp structure begins at the battery elementsfilfi', 35 and 39, to the switch. condoctor bar 78, connected to the sliding switch element 77 of a fined switch 75, to which is attached a spring conductor contactaole with container 16, from which the current is conveyed back to the'hattery through the conical s ring 24. Consideration of t e arrangement of insulation and curren carrying elments discloses no means by which a short circuitcan occur between any two external metal 'ele cuts of the device hile certain preferred embodiments of this device have been shown and described, it will be understood thatc hanges in the form, arrangements,- proport ons, sizes and details thereof, may he made without departin from the sec of the invention as defined by the appen ed claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, ist- 1. In a focusing flashlight, the combination with a casin having a. removable head, a lamp, a parabo io reflector and a concaveconvex lens, of a ring securing said lens on the head; a battery disposed in the casing, a container insulated from the cap, means within the container for holding an. extra bulb, a spring associated with the container for holding the better in contact with a lamp, a make and brea sliding switch, and means within the casing asmciated with said switch whereby current flowing from said battery may be conducted to said lamp.

2. In a focusing flashlight, the combination with a casing, a cover removably engaged with the casing, a spring cushioned shell resiliently attached to said cover, an outer shell slidable over said cushioned shell, a spiral cone shaped spring extending into the casing, means for securing said spring to the top or" said outer shell, and means between said shells adapted to secure an extra bulb therein.

3. In a focusing searchlight, the combination with a body casing, of an adjustable focusing lens head removably engaged with.

the casing, an insulated lamp holder secured 'at one end of said casing, a, removeblecap;.enga%ed at the other end, a container resilient y fixed in the cap, insulating said container from said cap, it 'compressmn spring fixed to the container, e betteryinterpesed between the spring and said lamp holder, means for conveying, electrical energy from the lamp holder to the container, and a switch engaged with the casing for interrupting or continuing the How of electrical energy by selective Ina-nipulation. V

4. In a focusing Searchlight, the combinetion with a body casing, of a lamp head :idjustably engaged with the casing, a lamp holder insulated from said head, means for engaging a. lamp within the holder, e'spring rentactable with the lamp, a flanged shell conveying current between said spring and s battery terminal, means in said shell means for 5. In a focusing flashlight, the eombinzn .l-ion with a casing, a cover removebly engaged with the casing, an elastic means carried by the cover for resiliently holding and securing an extra bulb therein, and a spiral cone shaped spring having a, of larger diameter than the length of the bulb and means for positioning the base of the spring with relation to the csver so that the axis of the spring is in substantial alignment with the bulb securing means.

This specification signed and witnessed this eleventh day of December, 1921.


PURL S. 'Wmsrnsn, CARL It. Mnnmz.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2530913 *May 6, 1947Nov 21, 1950Shackel Joseph TFlashlight lamp socket holder assembly
US7070297 *Jun 18, 2003Jul 4, 2006Muhlnickel Jr Donald LMultifunction flashlight
US7152995Dec 16, 2004Dec 26, 2006Chapman/Leonard Enterprises, Inc.Flashlight
US7396141Apr 24, 2006Jul 8, 2008Chapman/Leonard Enterprises, Inc.LED push rod flashlight
US7547113 *Jul 7, 2006Jun 16, 2009Iprset (Taiwan) Co., Ltd.Full-color LED-based lighting device
U.S. Classification362/187, 362/205, 340/321, 362/207
International ClassificationF21L4/00, F21V17/02
Cooperative ClassificationF21L7/00, F21V19/047, F21L4/00, F21V17/02
European ClassificationF21L4/00, F21V17/02, F21L7/00, F21V19/04S