US2616029A

US2616029A - Rotatable supporting means for lamps

Info

Publication number: US2616029A
Application number: US56787A
Authority: US
Inventors: Baltazar J Osowski
Original assignee: FRANK E STACKNIK
Current assignee: FRANK E STACKNIK
Priority date: 1948-10-27
Filing date: 1948-10-27
Publication date: 1952-10-28
Anticipated expiration: 1969-10-28

Description

Oct. 28, 1952 B. J. OSOWSKI ROTATABLE SUPPORTING MEANS FOR LAMPS Filed Oct. 27. 1948 Inventor Ba lfazar J. Osows/ri Patented Got. 28, 1952 ROTATABLE SUPPORTING MEANS FOR LAMPS Baltazar J. Osowski, Cicero, 111., assignor of onehalf to Frank E. Stacknik, Cicero, Ill.

Application October 27, 1948, Serial No. 56,787

3 Claims.

This invention relates to new and useful improvements and structural refinements in lamps, and the principal object of the invention is to provide what may be referred to as an adjustable lamp, such as may be conveniently and effectively employed in automobiles, trucks, busses, and similar vehicles, for reading purposes and general illumination.

In particular, the invention contemplates the provision of an adjustable lamp bracket whereby the lamp supported by such a bracket may be set or adjusted independently with respect to mutually perpendicular axes.

An important feature of the invention resides, therefore, in the particular construction of the adjustable lamp bracket and in its adaptability to, accommodate lamps of a conventional type.

Some of the advantages of the invention lie in its simplicity of construction, convenience in operation, and in its adaptability to economical manufacture.

With the above. more important objects and features in view, and such other objects and features as may become apparent as this specification proceeds, the invention consists essentially of the arrangement and construction of parts as illustrated in the accompanying drawings, in which:

Figure 1 is a perspective view of the invention;

Figure 2 is a vertical cross sectional view thereof;

Figure 3 is an exploded perspective view of the bracket used in the invention; and,

Figure 4 is a perspective view of a lens retainer used therein.

Like characters of reference are employed to designate like parts in the specification and throughout the several views.

Referring now to the accompanying drawings in detail, the invention consists of an adjustable lamp designated generally by the reference character ID, the same embodying in its construction a conventional lamp unit l2 and an adjustable bracket assembly I4.

The lamp unit I2 includes a suitable housing I6 provided with a door in which is removably mounted a magnifying lens I8, this being effected by the provision of a lens retainer best shown in Figure 4, which is removably mounted in the housing I6 by a suitable screw 22 and which includes

resilient fingers

24, 26, substantially as shown. The

fingers

24, 26 are engageable with a retainer ring 28 and a gasket 30 used in association with the magnifying lens I8, so that the lens is retained in position in the door of the housing I6 in a more-or-less conventional manner.

The lamp housing I6 is provided with a protuberance 32 in which is mounted a socket 34 equipped with a conventional incandescent lamp bulb 36, and the socket 34 usually includes an externally screw-threaded shank or sleeve 38 whereby the lamp unit I2 is customarily attached to its supporting structure, such as for example, to a fender or cowl of an automobile.

The essence of novelty in the invention resides, of course, in the construction and arrangement of the adjustable bracket I4, this consisting of a mounting plate or flange 40 provided at one side thereof with a recess 42, while its remaining side is equipped with an integral, tubular ferrule or bearing 44. An L-shaped arm or conduit 46, best shown in the accompanying Figure 3, is provided in one end portion thereof with an internal screw-thread 48, while its remaining end portion is diametrically reduced as at so as to provide an annular shoulder 52. (See Figure 2.)

The diametrically reduced portion 50 of the conduit 46 is rotatable in the aforementioned bearing 44 of the mounting plate 46 and is screwthreaded as at 54 to receive a nut 56 and a lock washer 58, as shown in Figure 2. The nut 56 and the lock washer 58 are disposed in the recess 42 of the plate 40, and it is to be also noted that a friction ring 60, formed from fibre, rubber, or the like, is interposed between the outer end of the bearing 44 and the shoulder 52 of the conduit 46. It should be understood that the nut 56 is not fully tightened against the lock washer '58, so that by virtue of the lock washer and of the friction-ring 60, the portion 50 of the conduit 46 is rotatable in the bearing 44 but the lock washer 58, by its resiliency, exerts suflicient pressure to prevent free rotation of the conduit portion 50 and the conduit, therefore,-remains in a predetermined position to which it is set.

The internally screw-threaded portion 48 of the conduit 46 is adapted to receive what may be referred to as a stepped lamp supporting collar and bushing 62, this being screw-threaded into the portion 48 of the conduit as at 64 and being provided with an axial bore 66 in which the shank 38 of the lamp unit I2 is rotatable. The member 62 includes an outturned lamp supporting flange 68 which supportably engages the protuberance 32 of the lamp housing I6, and a suitable nut I0 is provided on the lamp shank 38 so a to I rotatably attach the lamp unit to the bracket I4.

The incandescent bulb 35 is energized by a suitable conductor 12 which extends through the shank 38 and through the conduit 46 substantially as shown in Figure 2.

When the invention is placed in use, the plate 40 of the bracket 14, being provided with suitable apertures 14, may be secured by bolts, screws, or the like, 16, to suitable supporting structure, such as a wall 18, and by virtue of the rotatability of the conduit portion 50 in the bearing 44, and of the rotatability of the shank 38 in the bushing 62, the lamp unit I2 may be adjusted independently in two perpendicular planes, as exemplified at 89, 82, 84, etc. in Figure 1.

Finally, it may be explained that in assembling the bracket M, the bushing 62 and the nut are first applied to the lamp shank 38, whereupon the bushing and nut, together with the lamp unit [2, are applied to the portion #8 of the conduit 46 and th conduit may then beapplied to the mounting plate 40 by employing the nut and

lock washer

56, 58 respectively, before the entire assembly is secured to the wall 18 by the screws 16.

It is believed that the advantages-and use of the invention will be clearly apparent from the foregoing disclosure and accordingly, further description thereof at this point is deemed unnecessary.

While in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that minor changes in the details of construction and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed.

Having described the claimed as new is:

1. In a lamp having an externally threaded tubular mounting sleev rigidly attached thereto and extending therefrom; an adjustable lamp bracket comprising an L shaped support arm having an axial bore therethrough, said arm having an internally threaded outer endv and an externally threaded inner end, a collar having an axial boretherethrough for rotatably receiving said tubular mounting sleeve, said collar having an externally threaded end portion, said externally threaded end portion of said collar being screw threadedly received in said internally threaded outer end of said support arm, a retaining nut rotatably disposed in said bore in said arm and uninvention, what is derlying the inner end of said collar for retaining the lamp mounting sleeve in the bore in the collar, a flange having an axial bore therein rotatably receiving said inner end of said support arm, a lock nut threadedly received on said externally threaded inner end of said arm retaining said flange in engagement with said arm.

2. On a lamp having an externally threaded mounting sleeve rigidly attached thereto and extending therefrom; an adjustable lamp bracket comprising an L shaped support arm having an axial bore therethrough, said arm having an internally threaded outer end and an externally threaded inner end, a stepped collar having an outwardly flared lamp supporting flange on its upper end, and an externally threaded lower end portion of reduced diameter, an annular shoulder between said upper and lower ends of said collar, said internally threaded outer end of said arm threadedly engaging said lower end portion of said collar and abutting said. shoulder, said collar having an axial bore therethrough for rotatably receiving said mounting sleeve, a retainingnut rotatably disposed in said bore in said arm and underlying the inner end of said collar for threadedly engaging said mounting sleeve, a resilient ring positioned between said retaining nut and the inner end of said collar for yieldingly urging the lamp into engagement with said lamp supporting flange of said collar, a flange having an axial bore therein rotatably receiving said inner end of said support arm, means for retaining said flange in engagement with said arm.

3. On a lamp having an externally threaded mounting sleeve rigidly attached thereto and extending therefrom; an adjustable lamp bracket comprising an L shaped support arm having an axial bore therethrough, said arm having an internally threaded outer end and an inner end,

a stepped collar having an outwardly flared lamp supporting flange on its upper end, and an externally threaded lower end portion of reduced diameter, an annular shoulder between said upper and lower ends of said collar, saidinternally threaded outer end of said arm threadedly engaging said lower end portion of said collar and abutting said shoulder, said collar having an axial bore therethrough for rotatably receiving said mounting sleeve, a retaining nut rotat ably disposed in said bore in said arm and underlying the inner end of said collar for threadedly engaging said mounting sleeve, a resilient ring positioned between said retaining nut and'the inner end of said collar for yieldingly urgingthe Iamp into engagement with said lamp supporting flange of said collar, said inner end of said arm having a cylindrical extension thereon of reduced diameter, a seat between said extension and said inner end of said arm, a ferrule rotatably received on said extension, a resilient ring mountedon said extension between said seat and the ad jacent end of said ferrule, a radiallyextendi'ngmounting flange on the other end of said ferrule, said fiange having a recess therein, means for locking the inner end of said extension to said flange, said locking means being receivable in said recess. I

BALTAZAR J. OSOW'SKI.

REFERENCES CITED- The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date- 1,206,871 Locke Dec. 5, 1916 1,257,837 Fowler Feb. 26', 1918 1,561,625 Whittington Nov. 17, 1925 1,761,022 Parker June '3, 1930