|Publication number||US1421944 A|
|Publication date||Jul 4, 1922|
|Filing date||Oct 25, 1921|
|Priority date||Oct 25, 1921|
|Publication number||US 1421944 A, US 1421944A, US-A-1421944, US1421944 A, US1421944A|
|Inventors||Frederick L Humiston|
|Original Assignee||Winchester Repeating Arms Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (4), Classifications (9)|
|External Links: USPTO, USPTO Assignment, Espacenet|
F. L. HUMISTON.
APPLICATION map 001.25, x921.
1,42 1,944; Patented July 4, 1922..
I N VEN TOR. fi'Zder/CA Z Hum zls/on w vzuw ATTORNEY.
hairs stars FREDERICK L. HUlwIISTON, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO WINCHESTER REFEATING- ARMS COMPANY, A CORPORATION OF CONNECTICUT.
Specification of Letters Patent.
Patented July 4, 1922.
To all whom it may concern:
Be it known that I, Funnnnron L. HUMIs- Torr, a citizen of the United States, residing at New Haven, in the county of New Haven, State of Connecticut, have invented certain new and useful Improvements in Spotlights; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
The present invention relatesto battery hand lamps of the type in which the reflector can be shifted with respect to the lampbulb to change the character of the beam of light delivered by the hand lamp and to concentrate the beamon a spot of limited area when desired. 7
It is an object of the present invention to provide an arrangementwherein the battery and lamp are held in relatively fixed'posi tions in the casing, butwherein the reflector is movable with respect to the lamp and its support to change the spread of the beam of light.
It is a further object of the present invention to protect the inner and fragile terminal of the lamp from destructive thrust of the battery, to provide reliable circuit connections, and to house. the adjustable parts of the hand lamp in suchmanner that inadvertent changing in the character of the beam of light is in large measure. guarded against. p q
In the accompanying drawings- Fig. 1 is a sectional elevation of one embodiment of. the present invention; V
Fig. 2 is a fragmentary section of the same, showing the reflector moved axially of the lamp bulb to change the spread of the beam of light; 7
Fig. 3 is an end view of the reflector;
Fig. 4 is a section on the line 44 of Fi lii'gfb is a section on the line 5-5 of Fig. 1.
In the embodiment shown in the drawing, the case 1 is of insulating material and contains a battery 2 of dry cells arranged end to end in series connection in accordance with standard practice. The lower naked bottom of the battery makes electrical conneat-ion with a coiled spring 3 carried by a bottom cap 4 threaded to a collar 5 which is electrically connected by a strip 6 with a V carrying a lens 14. This lens may metalhousing 7. Riveted to this housing is a yielding contact finger 8 by which electrical connection can be made or' broken to the outwardly bent end 9 of a stationary conductor 10 which leads to the front end of the casing. Mounted on the front end of the casing, as by rivets 11, is a flaring metal head 12 to which is threaded a collar 13 be plain, as shown, or may be of othercross-section. The support for the lamp 15 comprises an insulating element 16, preferably in the form of a cross-bar or bridge, each end of which is secured by rivets 17 to an angle plate 18 attached to the fiber casing by rlvets l9 and 20. Secured to this insulating element as by rivets 21 is an inverted metal 011 122, the edge of which is in electrical connection with the yielding front end of conductor 10. v Secured to this cup or contact plate is a metal lamp socket 23 into which the lamp base is screwed. Socket also has screw-threads on its outer cylindrical surface for the support of the lamp reflector 24. This reflector has an extension 25 threaded over socket 23 and adapted to rotate thereon to shift the reflector axially of the casing and thereby change the relatlve positions of thereflector and lamp bulb to change the character of the beam of light delivered by the hand lamp.
A wire spring 26 encircles the threaded extension of the reflector and has one bent end 27 (Fig. 3) passed through a slot to lie directly in contact with the threads on socket 23, thereby acting as a yielding check against inadvertent rotation of the reflector on the socket. The upper terminal 28 of the battery rests against and makes electrical connection with one end of. a fiat spring 29 which passes through a slot in the insulating element, 16, and is bent over to engage the inner terminal of the lamp. By this construction the inner and fragile lamp terminal is protected from the forward thrust of the batteries induced by the bot tom'spring 3 and likewise protected from such blows as might result from the rebound of the battery if the hand lamp were dropped. The outer edge of reflector 24 is spaced from and therefore insulated from the metal head 12, and has no part in the flow of current from the battery through the lamp. The rounded front edge of the reflector may be knurled at 30 to facilitate manual rotation of the reflector on its support. 7
IVith the several elements constructed and amembled as shown in Fig. 1, a change in the character of the beam of light can be effected by first unscrewing collar 13 to give access to the reflector, and then, by
' pressing with the thumb and fingers on the Spring fidlikewise guards against accidental casing, a 'batterythereima lamp, a support rotation of the reflectorz' V A metal tube can be'used in place of the insulating tube 1 without any change other than that of insulating from it the front conductive strip 10. Other changes in the construction and arrangement of the sev-' eral part-sot the hand lamp may be made without departing from the spirit of my invention as defined by the appended claims.
I claim:' 7 V a 1 y 1. In'ahand lamp, the combination of a casing, a battery therein, a lamp, a support for'said'lamp, and a'reflcctor rotatable on said support to move axially of said casing.
2. .111 a hand lamp, the combination of a casing, .a battery therein, a lamp. a. support for said lamp, and a reflector threaded to .said support and rotatable thereon to move axiallyotisaid casing, andthereby change tlie spread of the beam ot'light from said hand lamp. a 3. Ina hand lamp, the combination of a for said lamp, and a reflector rotatable on said support tormove axially of SfLlCl cas ng,
' the rim of said reflector being spaced from and electrically insulatedfrom the front 1 end. of said'casing.
In a hand. lamp, the combination of ialcasing, a: battery therein, a lamp, a sup- 1 port, for said lamp, a reflector rotatable on said support to move axially ofsaid casing, and means ,yieldingly holding said re.- flector against inadvertent rotation. a
Y In a, hand lamp, the combination of a casing, a battery thereima lamp, a support for said lam'p, a reflector threaded to said support and rotatable thereon to move axially of sald casing, and thereby'change' the spread'oii the beam of light from said hand lamp, and a lens and lens-supporting ring threaded to the front end of said cas ing, and protecting said reflector against inadvertent rotation. J a i.
6. In a hand lamp, the combination of a casing, a" batterytherein, a lamp support against which said battery bears and a refleet-or rotatableon said support to move axially of said casing.
, 7. n1 ahead lamp, the'combination Ora casing abattery therein, alamp, asocket" for 'saidlamp, a reflector threaded'to said socket and movable axially in.v said casing,
the rim of, said reflector beingspaced from said casing, and a lens-supporting collar removable from said casingto give access to the beam said reflector when the spread of of light is to healt'ered. V f
8-. In a hand lamp, the combination of a casing, a batterytherein, an insulating element'secured to said casing, alamp, a socket for said lamp supported by said insulating element, a spring electrically-connecting the inner terminal of said lamp with one terminal of said battery, and a reflector threaded to said socket and movable axially in said casing when thespread of the beam of light is to be altered.
9'. In a hand lamp, the combination of a casing, a battery therein, a spring bearing against the bottom ofsaid battery, an insulating element secured' to said casing and taking the forward thrust of said battery, a lamp, a socket for said lamp mounted on said insulating element, ajireflector threaded to saidso'cketandmovable axially in sa dgcasmg, the rim of sald refiectorheand a lensing spaced from said casing, supporting collar removable from saidlcasing to give access to said reflector when the i spread of the beam of light is to be altered.
10. In a. hand lamp, the combination'fof a casing, a'batt'erytherein', a spring bear ing against the bottom of said battery,-an insulating :element secured to said casing and taking the forward thrust ot battery, a conductor mounted on said-fins'ulat ing element, a lamp, a socket for said lamp mounted on said conductor, a' reflector threaded to said socket and mOvable axially or" said casing, the rimofzsaid reflector being spaced from said casing, and a. lenssupporting collar removable from said casing to give access to said reflector-when the spread or the beam of" light is to be altered; In testimony whereof I affix my signature.
rnnnnnion L. 'nuinsron. j
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3511985 *||Jun 8, 1967||May 12, 1970||Muscovitch Joseph A||Adjustable beam lamp|
|US4450508 *||Mar 21, 1983||May 22, 1984||Carley James A||Self centering underground mine lamp|
|US4916588 *||Aug 1, 1988||Apr 10, 1990||Akron Industrial Limited||A flashlight with focus and switch control|
|US5055987 *||Apr 28, 1989||Oct 8, 1991||The Toro Company||Adjustable light fixture|
|International Classification||F21V17/02, F21L4/00|
|Cooperative Classification||F21V17/02, F21L4/00, F21L7/00|
|European Classification||F21V17/02, F21L7/00, F21L4/00|