US1440870A

US1440870A - Spotlight bracket

Info

Publication number: US1440870A
Application number: US462856A
Authority: US
Inventors: French Warren
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-04-20
Filing date: 1921-04-20
Publication date: 1923-01-02
Anticipated expiration: 1940-01-02

Description

' and useful Patented i2,

Wannen renner-r, or' nanosna, WISCONSIN.

srofrLiGi-rr BRACKET. l

Appiicatin ined apri/120, 192i. .semi No. 462,856.

To all whom i'i 12mg/ concern:

Be it known that I, llifannnn Fenstern a citizen of the United States, and a residentV of Kenosha` county of Kenosha, and State ofW'isconsin', have invented certain new improvements in 'Spotlight Brackets, of lication. l

My invention relates to'improveinents in Y Yspotlight brackets and has particular reference to a bracket*which can iiionnted upon a wind shield frame or other con venient part of a self-propelled vehicle and is so arranged that the' lamp supported thereby may be adjusted in any desiredA position; l l

The obgects my invention are to pro` vide a bracket of the class described which may 'be' rigidlyV and readily secured and mounted in place on a vehicle, and which will be substantially .free from any tendency to become loosened orto move around on the support. A further object `of theA invention is .to provide', in a bracket of the 'class described, a universal. adjustment which will enable the lamp supported by the bracket to be moved or rotated into any position yor direction at will, and which, when uso adjusted in position, will permanently maintain its adjusted position withoutcany tendency for/'it to slew around or become loose. A further object of the invention is to provide an eflicient, neat, rigid7 and substantial bracket and `lamp adjustment of the character' referred to.

A further object of the inventionxis to 'provide anlarrangement which will permit of convenient application of a subsidiary side light or a combined side and tail light,

and which will enable the leading-in wires shownin Fig 1*l certain portions of the casings being' :cut away in order to disclose the interior construction;` y

Fig. 3 is aplan view ofthebracket, the laiiipshaving vbeen removed therefrom;

V Figi 4; isfa front elevation of the bracket shown Fig. 3, `certain parts being shown in tsection which the following is a speci- .Fig 5 is 'a section taken on the line 5 5` of Fig. and

Fig. 6 is an elevation of a part of the clamp. u Referring tothe "drawings.y it will be observed that l have selected asa support for the spot lamp, the side bar or frame 10 of the wind shield of the self-propelled vehi cle to which my improved bracket is applied. The lamp 11 vhich is supported thereby, may be of any approved style, usually consisting of an outer casing l2 containing` a suitable electric lamp 13. It will be understood that the lamp 13 is located at 'the focal center of a parabolic reflector so that the lamp will throw a substantially condensed or approximately parallel beam of light.` Y

The bracket is arranged toprojectlaterally of the wind shield member 10 a sufficient distance to permit free movement of the spot lamp 11 in whichever direction may be desired, so that the beam of light emanating from the lamp can be thrown in all directions. Said bracket preferably coinprises a laterally extending supporting portion 1st by means of which the bracket may be clamped to the support 10. and an lL-shaped extension 15 the endof which is equipped with the necessary universal adjustment for supporting the spot lamp 11. l prefer to make the extensionarm 15 with twin spaced limbs, the space 16 between said limbs serving to accommodate and locate the supply cable 17 leading to the lamp. Said duplex construction of the arm 15 is also materially stronger than in the case of al single arm and adds considerably to the appearance of the device.

"The means by which clamping of the bracket to the bar `10 is effected, comprise an inner clamping member 18 and `a pair of outer clamping members 19 and 2O which constitute bifurcations of the bracket. Said

parts

19 and 20 may be separate twin punchings as shown in the drawings and at their outer ends are arranged with short turned down side flanges as at 21 the flanges being turned inwardly toward each other, as shown in Fig. E3 and being a suicient distance apart to tit snugly around a body part 22. Said body part 22 .may consist. of a.rectangu lar lblock `of brass or other suitable metal and hasat its inner end a transverse notch which accommodates a yoke or cross piece Q8. lt will he observed that the end 'of the block j ing bar 10. Normally in applying` the clamp 22 adjacent the supportingbar l() is pointed vor beveled orf to avoid a pair ot clampingl bolts 24 by means ot which bolts the members 19 and 2O can be forced toward each suitable lock-,washers as shown at 26 :tor preventing impro perniorements of the nuts duel to the vibration of the support.

The arms 19 and 2() ot the clamp are snitably apertured; to admit the rectangular cross piece 23 which extends loosely through said arms. The ends ot said crc-ss piece are tapped to receive a pair of parallel set screws 27, the points ol which are` adapted to engage a pair of lugs 28 extending from the inner clamping` member 18 and through suitable openings` in the clamping' arms `VA19 i and 29. The openings through which lugs 28 pass are formed by shearing ont ot the arms 19 and 2t) a. pair ot lugs 29 proiecing,l laterally trom the arms i9 and 2l) a sellicient distance to bring` them substantially in register with the lngs. Preteralfly, when formingy the projections 29 on the

arms

19 and 20, `there is also formed a pair ci ribs 30 which constitute a strengthening bac-hing.; for the lugs 29. i i

It will be observed that thc arms 19 and 2() are `formed with. inturned clamping; jaws as at 31 which jaws embrace and extend partially around the inner side of the support-- to the said supperting` bar 10, the bolts 24- are tightened up as tar as is practicable and then the set screws 2T which have previouslxr been slacked ol'l", are screwed home. 4The etiiect `ot screwing up the screws 27 is twofold.. .ln the lirst place, the inward Ifn'essure applied to the clamp member 18 muses the` `edges 32 to 'forcibly engage the outside snrface of the supporting bar l0. it xviii be ohserved that the clamp 18 is `made oi such shape that the edges 32 are spaced apart a substantial distance and are disposed-so as to contact with the bar 10 alone; narrow parallel spaced vertical Zones ot considerable depth. In the second place'` the tightenin r up ot the set screws 2.7 has a tendency ti; flex the lugs l28 permitting said ings to contact with and bear strongly against the lnos L29 .which project from the

arms

19 and, 20. This will result in a rockiifig action, or atendency toward a rocking' action. ot the ends of the

arms

19 and 20,*and the jaw port-ions 31 will hence tend to approach'one another thereby exerting a pronounced and positive clamping action upon. the bar 10. l

The base block 22 is formed with an inte- :gral head vor lug 33 centrally apertured to receive a clamping bolt 34 which is screwed lnto the base. 3570i the L shaped extension locked in a definite annular position of ad.- I y n A g v jnstinent when the n lation oit the laaclet is first effected.` the ciamp vbolt l l ing employedto loch the arm in the beJr position to suit the particular arrangement of each indiyidnal installation. Ordinarily the claim;- ingportion 14 oit thebraclet and the arm 15 are arranged. in line as lshown in Fire;

VThe lamp 11 is capable of being rotated around a horizontal axis andaround a vertical axis, both lmovements being with reference to the L `shaped extension arm 15 of the stationary or permanently adjusted .portion of the bracket. To this end I employ a socket member 39 arranged intermediate between the outer or upper end 40 of the arm 15 and the lamp 11 which is to be supported. Said socket member 39 is formed with a substantially cylindrical portion 41 having its'axis horizontal and is bored out to form a concentric cylindrical recess for the reception ofsuitable friction clamping members. The said clamping members include a stem 42 the outer end oct which istormed with a disc-like head 43k slidably arranged in the inner end of the socket, its outer surface engagging' a perforated friction disc 44. `Said friction disc 44 is Apreferablyv made of ber andis interposed liietweenthe head 43 of the t said stein 42 and the bottom 45 oi the socket 41. rlfhe inner vendv ot the stem 42 is threaded and is screwed into the upper end 40 of the arm-"15, a lock-washerv 41? and lock nut 42 serving as means for permanently securing` vsaidstena 42 into the arm 15 and thereby preventing rotation of the sternin the .is applied to the washer 46, head 43 and friction disc 44 by means of an adjustable )lucF 48 snrroundinw theA stem 42 and havin@ ha C t:

on its exterior threads49 fitting; correspfnnling,- threads formed in the interior of the outerportion of the socket 41. In order to enable said plug 48 to be turned or adjusted to give more or lessffriction between the Vsaid parts, I prefer to slot the outery face lt will be ninlerstood that `the arm l5 is intended to be permanently ot the plug as shown at to accommodate a suitable wrench or spanner.

It will be observed that by reason of the movement of the `lamp.

The outer end of the member 39 is formed with Va, second socket designated as 51 similar to the socket 41, but having its axis at right angles to the axis ot the socket 41, so that when the member 39 is in the position shown in the drawings, the lamp maybe rotated around a vert-ical axis. Said socket 51 isprovided with a friction mcmber'52 and adjustment plug 53 and a stem 54 provided with a head said parts"Serf-.fingthe same purpose as similar parts contained within the Vsocket 41.

The main spot lamp 11 is carried on the lower end of the stem 54 which is made tunilar to provide a conduit 56 for the leading-in wires or cable indicated at 57, (see Figs. 1 and 2). The said stem 54 is also formed with an upper extension 58 which extends through a central aperture in the friction washer 52 and through an aperture formed in the bottom wall of the socket 51. Both extremities of the tubular stem 54 are threaded to accommodate lock nuts as at 59 by means of which the spot lamp 11 and auxiliary lamp 60 may be clamped on the ends of the stem. lt will be seen by reference to Fig. 2 that the ends of the stem are inserted respectively throuofh apertures in the upper wall of the main casing 12 and the lower wall of the casing of the auxiliary lamp 60, the lock nuts 59 being disposed on either side of the wall ot the casing. It will be understood that when the lamps 11 and 60 have been once properly locked or clamped to the ends ot the stud or stem 54, no further adjustment is required.

The main lamp 11 is equipped with a suit- I able handle 61 by means of which the lamp may be swung around. a horizontal axis or vertical axis, or both, so as to direct the beam ot light toward any desired object. It will be understood that the friction adjustment plugs 48 and are tightened up to such an extent that enough friction is provided to prevent movement of the lamp due to vibration of the support. The shape of the casing of the auxiliary lamp 60 is preferably cylindrical, the axis oi the cylinder being located parallel with the axis of the main lamp 11, and the ends of said cylinder are closed by a pair of lenses, one of said lenses, via, 62. being usually ot red `glass` and the front lens 63 being ot' clear glass so that the auxiliary lamp 60 may serve both as a tail light and as a front light.

The side of the auxiliary lamp casing 60 which teeds the main lamp 13 is m da may be made with a pairof glazed apertures `as "at 64, `casting a small amount of lightI to the side of the kvehicle in order to facilitate getting in or out of same.

Eis shown in the drawings, the cable taken 'trom the auxiliary lamp connector 65 where it is connected in multiple to the main supply wire l?. Usually, l. find it desirable to locate switch at the base o't the main iuinp whereby the main spot lamp may be switched oit while the parking light-60 is burning. Also in order to utilize the main lamp 13 without consimiing current in the bulb G'Tlotthc parking light, the socket 65 may be oit such construction that a slight `rotary movement of same will disconnect the supply circuit 'from the terminals ot the 'bulb 67.

rlhe described ydetails oi construction are merely illustrative ot' a single phase of my inventiornthe scope oi* which should Abe determined by reference to the appended claims, said claims being construed as broadly as possible, consistent with the state of the art.

l claim as my invention:

1. ln combina-tion, a bracket, a member rotatable on said bracket around a horizontal axis and capable of maintaining any desired position ot angular adjustment. al stem rotatable in said member on an axis located at substantially right angles to the iirst axis and a lamp carried by each end of said stem.

2. ln combination, a bracket, a member rotatable on said bracket around a horizontal axis and capable of maintaining any desired position of angular adjustment, a stem rotatable in said member on an axis located at substantially right angles to the i'irst axis and a lamp carried by each end of said stem, said stem being tubular, and a cable in said stem 'for supplying electric energy to one of' said lamps.

3. In a device oit the class described, tho combination ot a pair of relatively movable parts, one ot' said `.parts having a tubular projecting stem and the other part having a substantially cylindrical socket co-axial with the stem, a circular' head on the outer end of said stem and seated in the inner end oit the socket, and a plug closing and located in the outer end of the socket, adinstable toward said head for forcing the latter toward the inner end of the socket, the arrangement including a part nonrotatable in the socket surrounding said stem and interposed between the outer face of the head and the plug.

4. In a device of the class described, the combination of a pair of parts relatively rotatable at will, one of said parts having a tubular extension, the extension being formed with a circular head, the other part being formed with a cylindrical socket adapted to slidably receive said head, a plug screwed into the outer end of the socket for forcing the head towards the bottom of the socket, a key-'Washer interposed between the head and the plug, and being nonrotatable relative to the socket, the bottom of the socket being apertured to receive said stem, a lamp casing rigidly connected to and communicating with said stein, and an electric conductor located Within said stem for supplying current to the lamp.

5. In a bracket adapted to be detachably mounted on a Wind shield frame bar of a self-propelled vehicle, the combination of an arm having spaced bifurcations, the ends of which bifurcatlons are formed to con-- stitute a pair of opposed jaws adapted to be moved toward each other, a part carried by lthe bracket and adapted to be forced t0- Ward said jaWs` the supporting frame bar beinginterposed between said part and the j aws, and means coacting with said part to cause the same to be forced toward the jaws and said jawsto approach each other.

6. In combination, a bracket arm having spaced resilient parts adapted to be moved toward each other, turned-in jaws on the eX- tremities of said resilient parts to clamp a frame part, means for moving said resilient parts toward each other, a complementary clamping member located between said resilient parts and provided. with extensions projecting laterally through said resilient yparts, projections on said last named parts 'registering with the said extensions, a cross barcarried by the bracket and screw means on the'ends of said cross piece and acting on said extensions for forcing the, complementary member toward the frame part and incidentally tending to force the extremities of saidv resilient parts toward each other.

WARREN FRENCH.