US 1671744 A
Description (OCR text may contain errors)
.Ma.y 2 9, 1928.
J. ROSENBERG FLASH LIGHT Filed July 31, 1925 a INVENTOR Jlfasenbery I II/ ATTORNEY I Patented May 29, 1928.
UNITED STATES 1,671,744 PATENT OFFICE.
JULIUS ROSENBERG, OF NEW YORK, N. Y., ASSIGNOR OI ONE-HALF TO HERMAN HOFFMAN, OF NEW YORK, N. Y.
Application filed July 31, 1925. Serial No. 47,242.
The main object of this invention is to provide a flashlight having an illuminating bulb at each end which is provided with different lenses so that at one end a concentrated beam-of light is reflected, and at the opposite end, a difl'used one is reflected.
Another object is to provide a flashlight having an illuminating bulb at opposite ends and individual circuits which are selectively closed by a doubled button switch mounted on the body thereof.
The above and other objects will become apparent in the description below, in which characters of reference refer to like-named parts in the drawing.
Referring briefly to'the drawing, Figure 1 is a longitudinal sectional view of the flashlight, showing a portion of the cells broken away to expose the individual circuits.
Figure 2 is a side elevational view of the flashlight.
Figure 3 is a longitudinal sectional view of the main body of the flashlight, show ing the bus-bars.
Figure 4 is a side elevational view of one of the reflector units.
Figure 5 is a rear elevational view of the reflector.
Figure 6 is a wiring diagram of the flashlight.
Referring in detail to the drawing, the numeral 10 indicates the tubular body of the flashlight. Within this body, a plurality or series of cells 11, 12, and 13, are placed end to end so, that the negative pole of one cell contacts with the positive pole of the adjoining cell. This body is formed of some insulating material such as hard rubber, pressed paper, or the like, and is provided with screw sleeves 14 and 15 at each end. These screw sleeves serve as fixing units for mounting the reflectors and reflector casings upon the body of the flashlight. The screw ring 15 is engaged by a threaded sleeve 16 which has an internal annular flange beneath which the plano-convex glass lens 17 is mounted. The lens which covers this particular end of the body has mounted beneath it a substantially hemi-spherical reflector shell 18 which is provided-with a screw socket shell 19 into which the socket 20 of a filament lamp 21 is secured. The
socket shell 19 is mounted in such a manner as to be permanently insulated from the reflector 18 and is fixed to an annular plate 22 with which it is in electrical contact. This annular plate 22 is part of the reflector unit illustrated in Figure 4 and is rigidly mounted on the reflector by securing the same to an insulating washer 23, which in turn is mounted on a plate 24, the latter being fixed directly to the reflector 18. A pair of relatively short cylinders 25 project from one face of the plate 22 with which they are in electrical contact and serve as housings for slide plungers 26 which are adapted to normally remain in contact with the negative side of the end cell 13. The plungers 26 slide outwardly from their cylinders 25 in a direction at right angles to the plane of the plate 22-and in an opposite direction to the reflector 18. The plate 22 has a similar pair of cylinders 27 from which spring operated plungers having contact plates 28 at their outer ends slide outwardly. The contactplates 28 of these plun-gers normally abut and lie in contact with a band 29 which is fixed in the interior of the body 10 and has a bus-bar 30 projecting from one of its ends. An additional bus-bar 31 is fixedly mounted in the interior of the body 10 and extends from a position approximately the middle of the body toward the sleeve 14. One end of this bus-bar 31 is provided with a flexible extending lip 32 which projects sidcwiso from the bus-bar 31 in a hollow in the body 10 and is adapted to underlap the one end of the bus-bar 30, being normally spaced-apart from the latter bus-bar but when pressed from one side, being adapted to contact with said bus-bar 30 to close an electrical circuit from the ring 29 thru the bus-bar 30 and into the bus-bar 31. A right angle extension 33 of the bus-bar 31 diametrically closes the interior of the tubular body 10 at the end on which the sleeve 14 IS mounted, and to this extension 33, a pair of similar dimensions as the insulating washer 41 is mounted on the sleeve 39 and is adapted to lie in contact with the resilient l p 43 of a bus-bar 44, which latter extends withm body and contacts with the shoulder or flange 49 of the reflector 18. This bus-bar extends longitudinally inward to a position intermediate the length of the body and is covered at one position along its length by an insulating plate 50 so that it does not come into electrical contact with other parts of the flashlight. The inner end of the bus bar 48 is connected directly to the housing 51 in which the switch buttons52 and 53 are movable. This housing has a slide car-- riage 54 thereon and the buttons 52 and 53 project upwardly as balled heads above the surface of the housing so that the carriage may ride over these balled heads and depress the buttons. The button stud 52 is extended normally by a sprin wound above the stud and has an insulate plate at its lower end, said insulated plate lying in contact with the portion 32 and is adapted to cause said member 32 to contact with the bus-bar 30 when said button 52 is depressed. The button 53 is also spring extended but is not provided with an insulating member at its lower end, simply contacting with the bus-bar 44 when the button is depressed by having a carriage 54 ride over its head.
Both ends of the flashlight are adapted to be illuminatediselectively and individually by manipulation of the switch carriage 54. As the switch carriage 54 is moved over the button 53, the latter is depressed, closing the circuit from the bus-bar 48 thru the housing 51 of the switch, the button 53, and the busbar 44. This bus-bar, having the resilient lip 43 thereon which contacts with the metallic plate 42, passes the circuitthru these parts and into the sleeve 39, finally coursing thru the filament lamp 37 to flow out thru the resilient finger 35, member 33, and the opposite resilient finger 34, thence thru the batteries, thereafter coursing thru the studs by such action and causes the extension 32 of the bus-bar 31 to come into contact with the bus-bar 30, and closes an electrical cir cuit thru the cells 13, 12, and 11, thru the resilient fingers 34 and 35 and member 33, continuing on thru the bus-bar 31, extension 32, and into the bus-bar 30. From here, the current passes thru the band 29, which being in contact with the late members 28, causes the circuit to shift t ru these 'plate members into the disk 22, which latter is in electrical contact with the socket 20 of the filament lamp. The current passes thru the filament lamp and its opposite terminal being in contact with the negative pole of the cell, completes the circuitthru this filament lamp 21.
I claim A flashlight comprising a casing, a battery in said casing, a reflector, a plate mounted on said reflector, a second plate mounted thereon and insulated therefrom, a cylindrical contact band adapted to be connected with one side of said battery, cylinders on said second mentioned plate having plungers mounted therein and resiliently pressed into engagement with said contact band for making electrical connection therebetween and said second plate, and a lamp mounted in said reflector and adapted for electrical connection with the other side of the battery.
In testimony whereof I aflix my signature.