US1317023A - Hilttmiltating device - Google Patents

Description

'A. W. KOEHLER.

ILLUMINATING DEVICE.

APPLICATION FILED FEB-17.1919- l ,3 1 7,023 Patented Sept. 23, 1919;

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A. W. KOEHLER.

ILLUMINATING DEVICE. APPLICATION FILED FEB. 11. 1919.

1,317,023. Patented Sept. 23, 1919.

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Ailarney A. W. KOEHLER.

ILLUMINATING DEVICE.

APPLICATION FILED [EB-17.1919.

Patented Sept. 23, 1919.

in venfor Award W/fae/zler Witnesses Aflorney ALBERT W. KOEHIiEB, 0F DAYTON, OHIO.

ILLUMINATING DEVICE.

Specification of Letters Patent. Patented Sept, 23, 1919 Application filed February 17, 1919. Serial No. 277,680.

To all whom it may concern:

Be it known that I, ALBERT W. KoEHLER, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented new and useful Improvements in Illuminating Devices, of which the following is'a specification.

This invention relates to illuminating devices particularly to search lights, and has for its object the provision of a rapidly rotating search light adapted particularly for use upon warships whereby a large area surrounding the ship may be illuminated for detecting the presence of submarines.

An important object is the provision of an illuminating device of this character embodying a rotary member carrying a plurality of search lights, the'rotary member being longitudinally movable with respect to its support whereby the angular position .of the search lights may be varied while they are rotating whereby the illuminating glare may be directed downwardly horizontally or upwardly depending upon whether the device is employed on board ship as above described, on land for detecting the presence of airplanes, or on an airplane or balloon for illuminating the ound below.

Another object is the provision of a device of this character rovided with very simple control means w ereby the an lar position of the search lights may be quickly and easily varied while the devlce is in operation.

An additional object is the provision of a device of this character which will be comparativel simple and inexpensive in manuacture, ighly eflicient and durable in use and a general improvement in the art.

With the above and other objects and advantages in view the invention consists in the details of construction, to be hereinafter more fully described and claimed, and illustrated in the accompanying drawings, in which Figure 1 is a side elevation of the device with the search lights shown at one limit oftheir adjusted position.

- Fi 2 is a" longitudinal sectional view showing the search lights at the other limit of their adjusted posltion.

' Fig. 3 is a plan view of the rotary head of the device.

Fig. 4 is a horizontal sectional view showing the base in plan.

Fig. 5 is a detail cross sectlonal view through the spindle at the point where one of the conducting wires enters thereinto.

Fig.6 is a detail elevation showing the contact members engaging the conducting terminal rings. 0 Referring more particularly to the drawlngs the numeral 10 designates the supporting base of the device which is provided, preferably at its corners with suitable attaching feet 11, whereby the device may be secured at the desired location. upon the baselO is an electric motor 12 which in the present instance is shown as extendin through a hole 13 formed'in the center 0 the base 10 and secured in place by a plurality of L-shaped clamping members 14 extending through the base 10 and provided with clamping nuts 15. Lead wires 14 and 15 extend through the motor as shown. The motor 12 is so positioned that its shaft 16 will be vertically disposed as clearly shown.

The rotating head of in device comprises a spindle 17 having at its lower end a socket 18 engaged upon the upper end of the motor shaft 16 and provided at its upper end with a preferably rectan ular plate 19 having hinged knuckles 20 ormed upon its edges. The upper portion of the spindle 17 is hollow for a purpose to be described. Associated with each edge of the plate 19 is an arm 21 having one end formed to provide hinged knuckles 22 and carr ing at its outer end an electric search light 23 embodying the usual reflector 24 and an incandescent bulb 25. The arms 21 are connected with the plate 19 by pintles 26 which pass through the associated knuckles 20 and 22 whereby the arms carrying the search lights will be pivotally connected with the plate 19. The lead wires 27 and 28 from the search lights pass through the hollow portion of the spindle 17 and have their terminals connected respectively with rings 29 and 30 secured upon and insulated from the lower portion of the spindle 17.

In order that current may be supplied to the searchlights, I provide a standard 31 secured upon the base 10 and carrying a pair of brush arms 32 and 33 which bear respectively upon the rings 29 and 30. Wires 34 and 35 are connected respectively with the brush arms 32 and 33 and interposed in the wire 35 is a knife switch 36 suitably mounted upon the base 10.

In order that the angular position of the Secured by clamping nuts 45 engaging upon opposite sides .of the arms 21. From this construction it will be seen that when the sleeve 37 is moved longitudinally upon the spindle 17, the angular position of the arms 21 with respect to the spindle may be quickly and easily varied.

In order that the position of the arms 21.

may be adjusted while the device is in operation, I provide a standard 46 rising from the base 10 to which is pivoted a lever 47 having one end provided with a handle 48 and having its other end provided with a fork 49 engaging against the lower end of the sleeve 37.

The operation of the device is as follows When current is supplied to the motor 12,

through the lead wires 14 and 15, rotation" of the motor will result in rotation of the spindle 17 carrying the arms 21 and searchlights 23. The wires 31 and 35 being connectedwith any suitable 1 source of current, when the switch 36 is closed, current will pass throughthe wire 34, ring 29, wires 27, through the bulbs 25, wires 28, ring 30, brush arm 33, wire 35, and back to the source of current, there-by energizing all of the bulbs 25. As all the search lights 23 will be rotated at a high speed the result will be the illumination of a large area surrounding the device. When the device is used'on board a ship the lever 47 is moved to adjust the position of the sleeve 37 upon the spindle 17 so that the search lights 23 will direct their raysin a substantially horizontal plane so as to illuminate the ,water around the ship. Such illumination will be practically continuous owing to the rapid rotation of the search lights and will render it an easy matter to detect the presence of an attacking submarine. Whenthe device is used on land for the purpose of detecting the approach of airplanes, the lever 47 is moved so that the sleeve 37 will be slid upwardly as far as possible upon the spindle 17 whereupon the arms 21 will be rocked upwardly/upon the pintles 26. Thepositions of the arms 21 and'search lights 23 will then be as shown in Fig. 1 of the drawings and the light from the search lights will be directed upwardly and will thoroughly illuminate a large area which will make the detection of the approach of an airplane a simple matter. When the device is used upon an airplane, it is necessary that the lever -17 be moved so that the sleeve 37 will be disposed at the lower portion of the spindle 17 whereupon the arms 21 will be inclined downwardly and the searchlights 23 will direct their rays downwardly and will illuminate the ground so that the aviator may more conveniently make a proper landing. Furthermore, when the device is used upon an airplane, the rapid rotation of the search lights will result in the production of an illuminated area of great extent against which hostile airplanes will be rendered easily visible for observers stationed upon the ground.

' It is of course understood that the strength of the device depends upon the size of the individual Searchlight and the strength of the current supplied to the bulbs therein. Owing to the fact that at all times the search lights are rapidly rotating the illuminating effect will be practically continuous instead of merely being a succession of flashes.

From the foregoing description and a study of the drawings, it will be apparent that 1 have thus provided an extremely simple and efficient device which is readily adjustable for use under varying conditions for different purposes and which will efliciently perform all functions for which it is intended,

l/Vhile I have shown and described thepreferred embodiment of the invention, it will of course be readily understood that I reserve the right tomake such changes in the form, construction and arrangement of parts as will not depart from the spirit of the invention or the scope of the subjoined claims.

Having described the invention what is claimed is 1. A device of the character described comprising -a vertically disposed-rotating spindle, a plurality of arms carried by said spindle and pivoted with respect thereto, a search light carried by each arm, a sleeve slidable upon said spindle and rotating therewith, radial lugs extending from said sleeve, stems adjustably connected with said lugs, other stems adjustably'connected with said arms, links pivotally connecting said stems, and lever'actuating means for shifting said sleeve.

2. device of the character described. comprlsing a supporting base, a motor driven vertically disposed spindle mounted thereon, a plate carried by the upper end of said spindle, a plurality of arms pivotally connected with said plate, a search light carried by the outer end of each arm, a sleeve slidable on said spindle, radial lugs extending from said sleeve, longitudinally adjustab e stems connected with said lugs, other lon 'tudinally adjustable stems connected Wit said arms, links pivotally connecting 5 said first and second named stems in pairs, a pivoted lever, and a fork on one end of said lever engaging said sleeve whereby to shift said sleeve lon 'tudinally upon said spindle for varying t e angular inclination ofsaid arms.

In testimony whereof I aflix my si ature.

- ALBERT W. KOE LER.

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