US1136378A

US1136378A - Illuminating device.

Info

Publication number: US1136378A
Application number: US87188914A
Authority: US
Inventors: August Sundh
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-11-13
Filing date: 1914-11-13
Publication date: 1915-04-20
Anticipated expiration: 1932-04-20

Description

A SUNDH.

ILLUMINATING DEVICE.

APPLICATION FILED NOV- 13, 19M.

Patented Apr. 20, 1915 I WITNESSES Z i if HM UNITED STATES PM or AUGUST SUEDE, 0! HASTINGS-UPON-HIIDSON, NEW YORK.

'mmmrurme nnvrqn To all whom it may concern:

Be' it known that I, AUGUST SUNDH, a citizen of the United States, residing in H-astings-upon-Hudson, in the county of Westchester and State of New York, have invented a new and useful Improvement in Illuminating Devices, of which the follow- Anot er object of the invention is the,

provision of. an electric battery and a miniature lamp together with a push button or other device for closing a circuit between the battery and lamp and a reflector for directing the light 'to the desired place,: the whole being contained within the knob structure and thus guarded against injury .from an external source.

A further object of the invention consists in providing a source of illumination which mav be controlled at will and is contained wit in a knob, handle or analogous device, the arrangement being such that all of the parts are Immediately accessible for inspection, repair or re lacement. Other objects 0 the invention will appear hereinafter, the novel combinations of elements being pointed out in the appended claims.

Figure 1 is a sectional view of my invention; Fi .,2' is'a fragmentary" end view of Fig. 1; i 3 and 4 illustrate my invention applieste a safe and to a-door.

'- Similar parts are designated by like ref 'er'encecharacters throughout all of the figures.

' It is well'known that oftentimes .oneex- I eriences the reatest difficulty in locating a l; al-hand even in the day time eyhole after the same difliculty mag be'present should the key hole be locate where the light is feeble, as so often'is thecase. The usual we to find the keyholewhen the light is incient1is to strike a' match if o'ne'can be found, and after locatingthe keyhole, throw Specification of Letters Patent. Application filed November 13, 1am. Serial No. 871,889.

Patented Apr. 20, 1915.

the match, Still lighted, into a corner. This practice is at best notonly a nuisance, but

also dangerous, since a carelessly thrown lighted match may very easily'be the cause of a serious fire. When it is desired to manipulate the dial of the combination lock of a safe, if the li ht be oor it is almost impossible to see t e num rs on the dial, and even though thenatural light be good or an artificial light be used, the 'placlng of the hand 'on the dial knob is sure'to cast a shadow on the dial, which obviously renders it diflicult to work thecombination.

By reason of my inventionl am enabled to provide a simple, practical and efiicient means for li hting-a keyhole or the dial of a safe. The ighting devihe, being contained within the knob does not require any additional space, and will not'cast any shadows.

The first cost is'very moderate, and, since it s intended that the light be used only at mtervals as needed,

Referring to Fig. 1, the numeral 2 represents the shell or casing of the knob which maybe of any suitable material say for example, brass, and it may be of any desired form such as cylindrical, oval or polygonal, either plain here shown, the knob casing 2 is a cylindrical casting which extends in a left hand direction to form a boss 3 in which is secured a. square stem or spindle 4 coactin in the usual manner with the door 100 ing or latching mechanism, the extension bein conical for part of its'length. Containe within this conical extension of the knob is a conical tube, 6, of glass or other transparent substance, are in part cut away as shown at 7 in Fi 2, so as to form openings through which light may pass.

Inside of the knob casing 2 is an electrical battery preferably of the so called dry type which ,may be constructed in any one of the well known'ways and as here shown comprises an outer containing cylinder 11 of zinc which is insulated from the knob casing by the insulation 15. The interior of the zinc cylinder is lined with cloth, blotting paper of other suitable absorbent material 12, and contains a block of carbon 13, the remaining space in the battery being filled izer le. a

Incl'osed within the glass tube, 6, and held or ornamental as desired. As

the expense for its mamtenance 1s ins gnificant.

and the walls of the extension between the insulation and the extension of the knob, is a reflector of metal or any suitable material, 2-1, which forms a socket for an incandescent lamp, 8, the base of g which abuts a contact, 16, embedded in the screw cover,'17, and push button 22, and connection between the negative element or] tact 20, of the battery, the latter contact being secured to the zinc, 11, which forms the positive element or electrode of the battery. The

contacts

22 and 20 are held normally in open position as shown by the spring 23, carried by the'cover'l7, and are brou ht into electrical contact, or rather the spring 23, is brought into electrical engagement with the contact .20, by a pressure on the button 22.

-The cover 17 is here shown as "being screwed to the knob casing 2 which arrangement is well adapted to a cylindrical knob,

since it permits of easy removal,and whentightly screwed in place, bears against the insulation 15 and thus securelyholds the battery against displacement and insures a firm electrical engagement between the center terminal of the lamp and button 16 as well as rendering the interior of the knob dust and moisture proof. Since the screw socket 9 is yieldable to-a certain extent, the same hots in the nature of a s ring, so as further to insure a good electrlcal contact between the lamp and button 16, and also automatically to compensate for, an slight variation in the dimensions of different lamps or batteriesas well as to allow for any expansion or contraction of the various ,P t

In casethe knob be of other shape than cylindricaL-I may still retain the screwed cover by providing the knob casingwith acircular screw threaded flange, or if the cover be. of the same shape as the knob, say for example, 'uare or polygonal, the same maybe presse into lace and secured by screws or other suit'ab e means was to rmit of the cover being removed w on necessary.

Fig. 3 represents a safehaving the usual combination lock 29 and showing the embodiment of my invention as illustrated inv Fig. 1 applied'thereto; Fig. 4. shows the embodiment of my invention illustrated in Fig. 1 as bein applied to a door lock 30 so as to enab eone to light up the key hole31.-

"e An illuminating device containing an embodiment of m invention ma be: constructed at very ittle exgense an since the interior space .m the kno which heretofore in series to accommodate a lam was wasted, is utilized to contain the various parts the knob does not have to be made any. larger than one of standard size. The device 1s devoid of all complications and does not require any electric wiring, and

, since all parts are inclosed, the device may be located in a position exposed to the weather without any danger of it becomin damaged or of having its efiiciency impaire If after long use, the lamp or battery should become exhausted and 'need to be replaced, a the cover of the knob can be easil and ,quickly removed without the use 0 tools of any "kind and the battery and lamp may be lifted out. The batteries can be made up in quantitiesv at small expenseand as the lamp is of standard size and can be purchased anywhere for a few cents, the entire .cost of maintenance is but trifling.

If desired the batteries may be made smaller so as to permit of using two or more volta e. This changecould not involve any com ications since the batteries would simpl e placed or nested one on top of the otlier within the knob.

From the foregoing description it will be seen that my. devlce comprises a hollow door knob with an extension applied to the usual door latch spindle, said extension being prolonged and arranged for a lamp bulb with a reflector inclosed' therein, and also a glass shield surrounding the lamp and reflector to protect the same from the elements. The

extension of the knob isformed conically of higher with openings surrounding it so that the light from the lam may be allowed to shine all around the kno It will also be noticed that the peculiar shape of the reflector will throw the light out through said openings.

As the, door knob is limited in size it has been found necessary to utilize allthe room,

'in the knob, and to this end I have provided the battery asshown in the drawings. The batter having its contactswor terminals 1n axial almement,'does awa with the neoess1ty of any skill in. assem ling the knob, as the battery position r l v r I desire not to: be limited to the precise construction and arrangement of parts herein -disclosed, since it is obvious that one ous changes without departing from the sp1rit and scope of theinvention.

What I claim is will naturally take the proper skilled in the art could readily make vari 1. A hollow knob adaptedifor manual op eration,a battery in sa1d"hollow, a conical.

extension on-theknob,.an electric lamp in saidextension surrounded by a. conical glass shield,and openin s in said extension for the-light from said amp to shine throu h/in alldirections circumferentially of the finch.

2; A-hollow knob adapted :Eor manual operation, a batteryiin and hollow, an extem' 7 for the knob, an illuminating device comsion on the knob, an electric lamp in the extension surrounded by a shield, openings in said extension, and a reflector back of said lamp shaped to throw the light from said lamp through said openings.

3. A hollow knob adapted for manual operation, a battery in said hollow, terminals in said battery in axial alinement with each other, an extension on the knob, an electric lanip in said extens on surrounded by a shield, openings in said extension for the light from the lamp to shine through circumferentially of the knob, and means carried in the end of the knob to engage one terminal of the battery.

4. A hollow knob adapted for manual operation, a battery in said hollow, rigid terminals for said battery in axial alinement with each other, an extension on said knob, an electric lamp in said extension surrounded. by a shield, and openings in said extension for the light from the lamp to shine through. in all directions circumferentially of the knob.

5. A hollow knob adapted for manual operation, an extension on the knob, a cover for the knob, an illuminating device carried by the knob and extension, part of said illuminating device being carried in and wholly surrounded by said extension and part carried in and surrounded by the knob proper, a switch carried by said cover, and means associated with the cover for controlling said switch. I

6. A hollow knob adapted for manual operation, an extension for the knob, a cover prising an incandescent lamp and a cell or dry battery, the lamp being carried by and wholly surrounded by the extension of the knob, and the cell or dry battery being carried by and wholly surrounded by the knob proper, a switch carried by said cover, and a push button in said cover for controlling a circuit between the said battery and lamp.

7. A hollow knob adapted for manual operation, an extension formed on the knob, an illuminating device comprising a battery and incandescent lamp, and a transparent shield surrounding the lamp, said lamp and shield being carried within said extension and said battery being carried within the knob proper.

8. A hollow knob adapted for manual operation, an extension formed on'the knob, an electric bulb, a battery contained within the knob proper, a glass shield surrounding the said bulb, saidbulb and shield being contained within and wholly surrounded by said extension, and openings in the periphpermit light from to pass through, and a screw cover for the knob for retaining said battery, bulb and shield in fixed relation.

10. A hollow knob adapted for manual operation, an extension formed on the knob, an illuminating device comprising a battery and incandescent bulb, a shield of transparent material surrounding the bulb, and a reflector for the bulb, said bulb, reflector and transparent shield being carried by and wholly within said extension, and the battery being carried by and wholly within the knob proper.

11. 'A knob adapted for manual operation, an extension formed on the knob, an illuminating device comprisin a battery and lamp, the lamp being carried within and surrounded wholly by said extension, the battery being carried by the knob proper, openings in said extension for permitting the light from the lamp to pass through, a conical glass shield surrounding the .lamp and closing said openings, and a socket and reflector for the lamp formed integral and shape of a frustum of a cone having its sides concave.

12. A knob adapted for manual operation,

a an illuminating device comprising an incandescent bulb, a reflector carrying said bulb, a transparent shield surrounding said bulb and reflector, an extension formed on the'knob and surrounding said lamp, reflector and shield and provided with openings through which the light from the lamp may piss through, a battery carried within the ob proper, one terminal being in constant engagement with the lamp, a cover for said knob proper carrying a push button, a contact in engagement with said button and adapted to engage the other terminal of said battery when operated.

Intestimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

' AUGUST SUNDH.

Witnesses:

WALTER C. STRANG, ERNEST L. GALE, Jr.