US2192114A - Spotlight - Google Patents

Description

L. E. O. WALKER SPOTLIGHT Filed July 21, 1958 2 Sheets-Sheet 1 INVENTOR; v Luther'E-U-Wa1ker"' M w-"M ,-,z,192,114

6 Claims. 11. z t-61.13)

The invention relates'toimprovementsin spot-'-' wall. such-as the roof of an automobile or airlights, and more particularly to improvements in plane, provided with an opening ll extending adjustable spotlights adapted to be mounted exbetween the exterior and interior surfaces i2--.l3 teriorlyof the body of avehicle. such as an of the'wall. I I

l automobile or airplane, and controlled from with- Resting on the exterior surface l2 of the wall 3 in the vehicle body. I Y and in co-axial relation to the opening is a One of the primary objects of the invention is resilient concave-convex circular base 14 .with to. providean adjustable spotlight of the charits concave surface 15 adjacent the walltoproacter described, having control and electrical' vide a chamber. Disposedaxially-ofthe cir-, -x

l0 conducting mechanism completely housed within cular base 14 Ba bushing 11 provided at one, 10

the spotlight. end with-a radial flange. i8 adjacentthe convex] .Another and important'obje'ct'is to-provide imsurface 19 of the base andat itsother end being.

. 1 proved means for tilting the spotlight operable by externally threaded to receive a nut 20 eng'aga flexiblelineand spool in ar'nanner similar to, ing a metallic washer'Zl, adjacent the concave I the operation'of a derrick. surface of the base. Secured-tothe washer 2|, 15 Another object of the 'invention'is'to provide a" ,as by'a screw 22 is-a'ground wire 23 leading thru spotlight for vehicle mounting,so constructedas the openingv H of the supportingwall. Mounted tosfacilitate streamlining of those portions of intra-marginally of the radial flange I8-is an insthelight which are exposed 'to the air stream sulative'ring'24 carrying a concentric conductorm of the vehicle. a ring -25,-'from which a conductor wire 26, leads '0 .still another object is to provide a spotlight into the chamber l6 and thruthe opening' li of havinga supporting base adapted to engage and the supporting wall. a 1 I, conform tothe contour of a supporting 'wall sur- Extending thru the bushing I1 and opening Ii face. I I is a hollow shaft 21 having an intermediate ral .5 A further object 'is to provide a spotlight indially enlarged. portion'28 provided with anan- J cluding a stationary base and a rotary lamp body" .nular' bottom surface 29 slidably engaging the. and having improved electrical conductor means marginal edgeportion 30 of the radial flange I 8 between'the base'and-lampbodyj a The bottom surface 29 is provided with an am IA still further object is to provide 'as'potlight nular groove or channel 31 accommodating the including a stationary base and a rotary'lamp rings 24-45; Extending downwardly thru-the 3 body and having improved means tendingto'reenlarged portion 28 is a'brush can'ier 32' including tain'thela'mp body-in'any desired 'oriented'relaan lnsulative'jacket 33 communicating, with the tion to the base. 1 I channel 3| and carrying a brush 34 urged, as by a .Yet another object is to provide a'spotll'ght inan expansion coil spring 35, into engagement eluding a control cord and-a spool for reeling in with the conductorring 25. I v H 5 1 or paying out-the cord and-which spool is moun't- Superjacent the enlargedportion 28 and transed'in a manner wherebythe spool will tend to versely of the shaft is a sleeve 36,:offset from the; automatically remain imanysetpddtion. axis of the shaft, and carrying a pivot pin 31.;

J Otherobjets and advantages of the invention The lamp body 38 is hollow and of egg-shaped will'become apparent during 'the course of the contourand provided atits forward end por- 40 following detailed description; taken in 'connec-- tion 39 with any suitable lens 40 and reflector 4| tion with the accompanying drawings, forming a carrying the usual velectriclight 42. ,At its lower I part of this'speciflca'tion,'andinwhich drawings: side, the lamp body is provided with an opening Figure 1 is a view in'side elevation of the im-J 43, defined by a downwardly depending skirta proved'spotlight, mounted upon a'supporting wall like flange 44; Extending loosely thru theopen- 45 section. I

I ing 43 is the hollow shaft 2-1, theupper or free y Flgure 2 is a vertical longitudinal-sectional end 45 of which'terminates adjacent the upper view'of the spotlight. side of the lamp body and is;provided with-a Figure 3 is a verticaltransverse sectional view sheave 46. At the skirt-like flange 44, the lamp 60 of the spotlight. v I J v body istiltably mounted, by means of the pivot 'In the drawings, which for the purpose olfilpin 31, to the shaft 21. Encircling the sleeve 36 lustratlon show only a preferred embodiment of at its end portions on-eithe'r sideof the shaft isv the invention, and-wherein similar reference a spring 41. including oppositely wound helical characters'denote corresponding parts throughportions: 48 joined by aninterveningbight por-- 66 out the several views, i0 designates a supporting tion 49 engaging the shaft 21, the outer ends'50 Yao tion trainedaround the sheave 46 and 'se= cured to the fin 52 at the knot 56. The opposite end portion 51 of the line depends from the lower end of the shaft 21.

Control means 58 for regulating the lateral? orientation and vertical inclination of the lamp body, mounted interiorly of the vehicle, will now be described. Engaging the interior surface l3 of the wall in andco-axial with the opening l l thereof, is a resilient annular washer 59, formed of rubber, andprovidedwith a radial passage- 1 way 59 for the coriductorwires 23 and 26, Disposed concentrically beneath the resilient washer 59 is an inverted annular-frusto-conical member 66 encircling the shaft and normally held stationary thru engagement with the washerv 59.

At its lower end, the member 66 is providedwith an internal annular groove 6| in which it is rotatably'mounted the. cylindrical upper end portion 62 of a control frame 63,. At its lower end portion 63;the control frame is'provided with spaced parallel circular walls 64 rotatably sup:

porting a co-axial rod 65 on which isfixed, as by a diametrically disposed cotter pin-66, aresilient'spool 61, formedof rubber and having itsend faces '66 'contactingthe interior surfaces of the circular walls 64. Threaded on one end por tion 69 of-the rod 65 is a nut 10 bearing against the frame and adapted toalter'the axial--relationship of the rod with respect to the frame whereby to vary the degree of engagement of the end faces of the spool 61 relative to. the walls 64. Fixed on the squared opposite end portion H of the rod, as by a nut I2 is a handle 13 com- T prising a metallic wheel 14 and aconical rubber extension cap-15. Embedded in the base of the cap 15 are flanged nuts I6 cooperating with screws H carried by the wheel for securing the, cap

thereto. Secured to the head 18 of the cotter pin is the end portion'51'of the flexible line, spaced rollers 19 being provided transversely of theframe between the lower end of the shaft 21 and the spool. Y i

In order to'fix the frame 63, set screws 86' are threadedly carried by the upper portionofxtheframe and extend radially inwardly into engagement with the shaft. By forcing the'lamp body towardthe supporting wall It), the resilient base I4 may be compressed into close contact with the exterior surface of the wall, so as to conform to any irregularities in the contour thereof, and the base may then be secured in such relationship by theset screws" 80. 1

In order to laterally swing the lamp-body,1itv is only necessary to swing the handle 13, which eifects corresponding turning movementof the frame 63 and shaft 21, the electrical connections to the light being constant due to the continuous 1 contact of the brush 34 with the ring 25.

To tilt the lamp body forwardly and down-' wardly, the handle I3 is turned in a direction to effects. reeling-in movement of the spool, so that the pullexerted on the line will lift the reara vehicle or building.

the shaft for rotation withward end of the lamp body against the influence from the spool, so that the spring 41 will depress the rearward end of the lamp body, the frictional contact between the end faces 68 of the spool with the interior surfaces of the walls 64 being" sufficient to retain the spool in any setposition. 4

While the spotlight has been s'hownfand de-' scribed as mounted upon a horizontal supporting wall, such as the roof of an automobile or airplane, it may be supported in the same manner by any suitable wall, such as the side wall of 'It will be seen that a spotlight has been pro- 1v1ded which may bemounted so as to exclude the weather, and which is of a construction permitting modern streamlined design, yet which is,

readily adjustable laterally, vertically or in a direction defined by lateral and vertical :compo nents. Various'changes may be made in the form of invention herein shown and described, without departing from a the spirit of the invention; or

the scope of the following claims.

1. In an adjustable spotlight, a hollowlamp body having an opening in oneside defined by a skirt-like flange, a hollow standard extending loosely through said opening and having an ends."

portion terminating interiorly of the lamp body and adjacent a side thereof opposite to said opening,-said end portion carrying a sheave, means pivoting the lamp body at said skirt-like flangeto a saidstandard, aflexible line extending thru saidhollow standard and having one-end portiony trained around said sheave and secured to, an interior portion of saidlamp body remotefromi:

said sheave, the opposite end portion of said line",

extending from the end portion of the standard";

opposite said sheave, and control means include? ing a frame secured to the last-named end-por-, tion of the standard, a control shaft carried by the'frame; a resilient spool fixed on the shaft and having an end surface frictionally engaging the frame, said last-named end portion of the line being securedto said spool, and means regulating the axial relationship of said shaft withrespect to the. frame whereby to ,vary. the frictional engagement 0f;v S d; spool andlframe. l I 2. In an adjustable spotlight. a hollow lampy said standard, a, spring acting between the pivot' 4 means and lamp body tending totilt the lamni body about saidpivot, a flexibleline extending thru said hollow, standard and having one end: portion trained aroundsaid sheave and secured to an interior portion of said lamp body remote from said sheave, the opposite end portion of said line extending from the endportion of the standdard opposite said sheave, 1 and control means including a frame secured to the last-named end portion of the standard, a control shaft carried by the frame, a resilient spool fixed on the shaft, and having an end surface frictionally engage:

ing the frame, said last-named end portion of the line being secured to said spool, and, means regu lating the axial relationship of said shaft with respect to the frame whereby to vary the frictional engagement of said spool and frame.

3. In an adjustable spotlight, a hollow standard, a lamp body pivotally secured to the standard, a flexible line in the hollow standard and secured at one end portion to a portion of the lamp body for controlling the pivotal relationship of the lamp body with respect to the standard, and control means including a frame fixed to the standard, a shaft rotatably carried by the frame,

a resilient spool on the shaft, and a cotter pin' extending diametrically thru said spool and shaft and having an eye adjacent the periphery of the spool, the opposite end portionof said flexible line being secured to said eye, said spool haying anend surface frlctionally engaging said frame and a nut threaded on said shaft and engaging said frame to vary the axial relationship of said shaft with respect to said frame whereby to alter the frictional relationship of said spool and frame.

4. In a spotlight of the character described, a hollow standard, a lamp body pivotally secured tothe standard, a flexible line in the hollow standard and secured at one end portion to a portion of'the lamp body for controlling the pivotal relationship of the lamp body with respect to the standard and control means including a frame fixed to the standard, a shaft rotatably a hollow standard, a lamp body pivotally secured to the standard, a flexible line in the hollow standard and secured at one end portion to a portion of the lamp body for controlling the pivotal relationship of the lamp body with respect to the standard and control means including a frame fixed to the standard, a shaft rotatably carried by the frame, a resilient spool fixed on the shaft, said spool having its end portions disposed between and in frictionai'engagement with opposite sides of the frame, the opposite end portion of said flexible line being secured to said spool, and a nut threaded on said shaft and engaging said frame to vary the axial relationship of said shaft with respect to said frame whereby to alter the frictional relationship of said spool and frame.

6. In a spotlight of the class described, a resilient concavo-convex base for engagement with the exterior surface of a supporting wall, a bushing carried by said base including a radial flange, a hollow shaft extending thru said bushing, said shaft having an intermediate radially enlarged a predetermined frictional engagement of said flange with respect to said radial enlargement is had.

LUTHER E. O. WALKER.

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