US2799742A

US2799742A - Wall swivel

Info

Publication number: US2799742A
Application number: US371095A
Authority: US
Inventors: Schwartz Nathan Rodney
Original assignee: NARAS RES Inc
Current assignee: NARAS RES Inc; NARAS RESEARCH Inc
Priority date: 1952-03-18
Filing date: 1953-07-29
Publication date: 1957-07-16
Anticipated expiration: 1974-07-16

Description

July 16, 1957 N. R. SCHWARTZ 2,799,742

WALL SWIVEL Original Filed March 18, 1952 I INVENTOR.

NAM/W RODNEYJUIWARTI AWORNEK United States Patent WALL SWIVEL Nathan Rodney Schwartz, Brooklyn, N. Y., assignor to Naras Research, Inc., New York, N. Y.

Original application March 18, 1952, Serial No. 277,101. Divided and this application July 29, 1953, Serial No. 371,095

4 Claims. (Cl. 20051) This invention relates broadly to swivel joints and more particularly to swivel joints used in mounting an electrical lighting fixture to a vertical support such as a wall. The present application is a division of the application entitled Lamp Joint, filed on March 18, 1952, under Serial No. 277,101, now abandoned.

It is the principal object of the present invention to provide a swivel joint for an electrical lighting fixture,

whereby angular or rotative motion may be imparted to an arm at one end of which an electrical lighting fixture is secured.

A further feature of the present invention resides in the provision of a swivel joint of this character, wherein rotative movement is limited to slightly less than one complete revolution in either direction.

Yet another advantage of the present invention resides in the provision of a swivel joint of this character, by means of which a lighting fixture attached thereto may be rotated about its axis and adjusted angularly relative to its normal axis, and wherein the lighting fixture so adjusted will remain in any of its adjusted positions until the adjustment is manually altered.

And a still further purpose of the present invention resides in the provision of a swivel joint of this character, which has a wall plate attached thereto, whereby the swivel joint and the lighting fixture mounted thereon may be attached to a wall or any other suitable and desirable perpendicular support.

And a still further advantage of the present invention resides in the provision of a swivel joint of this character by means of which angular and rotative adjustment of a lighting unit attached thereto may be achieved without the use of bolts or nuts.

These and other meritorious aims and advantages, which will become more fully apparent as the description hereof proceeds, are attained by the novel construction, combination and arrangement of parts, hereinafter described, and illustrated in the accompanying drawing, forming a material component of this disclosure, and in which:

Figure 1 is a side elevational view of an electrical lighting fixture provided with the wall swivel of the present invention.

Figure 2 is a front elevational view of the lighting fixture illustrated in Figure 1.

Figure 3 is a detail view of the wall swivel of the present invention, drawn to an enlarged scale.

Figure 4 is a right hand view of the swivel joint illustrated in Figure 3.

Referring in greater detail to the drawing, the numeral 20 illustrates in general an electrical lighting fixture, comprising broadly a wall plate 21 whereby the lighting fixture may be mounted to a support, a pair of extension arms referred to by the

numerals

28 and 30 jointed endwise by a swivel socket 29 and a lamp 23 the reflector 31 of which is secured to the free end of arm 30. Neither the arm 30 nor the swivel socket 29 nor the lamp 23 form "ice a part of the subject-matter of the present application, hence none of these elements will here be further described nor more specifically illustrated.

The present invention comprises a swivel joint broadly referred to by the numeral 27. Swivel joint 27 consists of two hollow

cylindrical shells

33 and 36 respectively, each of the said shells terminating at its outer end in a rounded portion, as is illustrated in Figures 1 and 3.

Superimposed upon shell 33 near its inner end is a cylindrical sleeve 34, extending practically to the inner edge of shell 33. Embracing the inner end of shell 36 is a hollow tubular sleeve member, referred to by the a substantially spherical swivel member 37 having an internally threaded opening vertically therethrough, to receive the externally threaded end 38 of a nipple 60 which is cylindrical in cross-section and hollow in its interior. Swivel member 37 is seated upon a washer 40, which is urged against the rounded upper portion of shell 36 by a compression spring 41, preferably seated upon a pair of

washers

42 and 43 respectively, the washers being made of metal and fibre respectively, and joined as at 44. There is further provided a wall plate 24, which has openings therein for the passage of screws 45 and lock nuts 46 therethrough and through corresponding openings in sleeve 35, and wall plate 24 is further provided with openings for the passage therethrough of screws 47 and lock nuts 48 therethrough and through corresponding openings in

sleeves

34 and 35 whereby the sleeves are held in engagement with each other and with the plate 24. There may also be provided bushings 49 in wall plate 24 through which electrical wires 51 may pass from within the

shells

33 and 36 through wall plate 24. A conventional switch 32 may be located at a convenient and suitable place, such as for instance the rounded end of shell 33. A wall or other mounting surface is illustrated at 25 to which the wall plate 24 may be attached by nails 26 or otherwise.

The end of nipple 60 extending beyond the rounded upper end of shell 36, may have one end of arm 28 secured thereto. At the end of arm 28, unit 29 illustrated in Figure 1 may be mounted, or a lighting fixture may be secured to the end of the said arm.

Thus there has been shown and described a simple, yet highly effective swivel socket, whereby a lighting unit may be mounted against a wall or other vertical surface. By means of this swivel socket, the lighting fixture so mounted may be turned upon its axis or moved angularly up to about of its normal axis and retained in any of its adjusted positions until that position is changed by moving arm 28 in an obvious manner.

The drawing and description are to be regarded merely as descriptive and illustrative of the best known form of the present invention, and not limitative or restrictive to the exact details shown, applicant reserving the right to make such changes in his device as may come within the scope of the appended claims, without thereby departing either from the spirit or the scope of the appended claims.

Having thus described the invention, what is new and desired to secure by Letters Patent, is:

1. A swivel unit for attachment to a vertical support comprising a pair of hollow cylindrical shells arranged in edgewise vertical alignment, each of said shells terminating at their opposite ends in a rounded portion, an opening in one of said roundedends extending in one direction from the apex to a point therebelow, a swivel member in that shell, a washer upon which said swivel member is seated, means urging said washer and said swivel member toward the rounded end of said shell, a nipple extending from said swivel member through said shell at the opening therein, retaining means upon which'said urging means is seated, said nipple adapted to be angularly disposed in said opening, a circumferentially positioned sleeve embracing one of said shells at its cylindrical edge, a second sleeve of larger diameter than said first named sleeve, said second sleeve embracing said other shell at its cylindrical edge, said first named sleeve adapted to enter into said second named sleeve, a plate, means providing side openings therein for the passage of retainers therethrough and through corresponding side openings in said sleeves whereby said sleeves are secured to said plate, said opening positioned to prevent movement of said nipple from the vertical toward said plate and permit movement of the said nipple away from said plate.

2. The swivel unit as set forth in claim 1 in which an electric switch including an interrupting mechanism and operating means is secured to the other shell, said interrupting mechanism being disposed within said other shell and said operating means positioned exteriorly thereof.

3. The swivel unit as set forth in claim 2 in which the operating means is positioned at the rounded portion of the other shell.

4. A swivel unit for attachment to a vertical support comprising a pair of hollow cylindrical shells arranged in edgewise vertical alignment, each of said shells terminating at their opposite ends in a rounded portion, an opening in one of said rounded ends extending in one direction from the apex to a point therebelow, a swivel member in that shell, a washer upon which said swivel member is seated, means urging said washer and said swivel member toward the rounded end of said shell, a nipple extending from said swivel member through said shell at the opening therein, retaining means upon which said urging means is seated, said nipple adapted to be angularly disposed in said opening, a circumferentially positioned sleeve embracing one of said shells at its cylindrical edge, a second sleeve of larger diameter than said first named sleeve, said second sleeve embracing said other shell at its cylindrical edge, said first named sleeve adapted to enter into said second named sleeve, 2. plate, means providing side openings therein for the passage of retainers therethrough and through corresponding side openings in said sleeves whereby said sleeves are secured to said plate, said opening positioned to prevent movement of said nipple from the vertical towards said plate and permit movement of the said nipple away from said plate, and an electric switch including an interrupting mechanism and an operating handle, said interrupting mechanism disposed within said other shell and said operating handle positioned exteriorly of said other shell at the rounded portion thereof; said sleeves, said other shell, and said plate having wire openings, all of said wire openings being in alignment; a first, a second and a third insulated electrical conductor each havng a first end and a second end, a portion of said first coiiductor positioned within said nipple with its said first end secured to said electric switch and its second end extending beyond the swivel unit, a portion of said second conductor positioned within said wire openings with its said first end secu'red to said electric switch and its said second end exten ing beyond said swivel unit, a first portion of said th'nd c'onductor positioned within said nipple and a second portion positioned within said wire openings with its first and second ends extending beyond the confines of said swivel unit.

References Cited in the file of this patent UNITED STATES PATENTS 1,345,334 Stafford June 29, 1920 1,423,309 Curtis July 18, 1922 1,469,528 Owens 1 Oct. 2, 1923 1,780,712 Little Nov. 4, 1930 1,925,335 Murphy Sept. 15, 1933 2,116,050 Stock May 3, 1938 2,456,182 Goble Dec. 14, 1948 2,472,624 Schwartz June 7, 1949 FOREIGN PATENTS 723,955 France June 23, 1932