US2340310A

US2340310A - Desk lamp

Info

Publication number: US2340310A
Application number: US449915A
Authority: US
Inventors: Clarence L Dewey
Original assignee: Individual
Current assignee: Individual
Priority date: 1942-07-06
Filing date: 1942-07-06
Publication date: 1944-02-01
Anticipated expiration: 1961-02-01

Description

C. L. DEWEY DESK LAMP Filed July 6, 1942 Feb. l, 1944.

Patented Feb. 1,1944

UNITED STATES PATENT OFFICEv DESK LAMP Clarence L. Dewey, Elkhart, Ind. Application July s, 1942, serial No. 449,915

(ci. 24o-s1) 7 Claims.

The desk lamp of the present invention is designed to provide a base which may be formed of stamped or spun metal and which serves as a mounting for a standard which is preferably though not necessarily formed .from tubing configured to the desired shape by the employment adapted to support a lamp shade 'and also to afford a conduit for the wiring which supplies current to the lamp.

The i invention also is directed to a special form of socket for supporting the standard upon the base and to various details of construction which will more fully appear from the specification in conjunction with the accompanying drawing, wherein Figure 1 is a view partly in vertical section and partly in elevation of the lamp; Figs. 2 and 3 details of the upper end of the standard at different stages in its fabrication, and; Fig. 4 a perspective view of the upper end of the completed standard.

The standard is formed in its entirety from a single length of cylindrical metallic tubing which is configured to provide 'a downwardly tapering body portion I which near its lower end flares outwardly through a shoulder portion II terminating in an enlarged foot portion I2. At the upper end of the tapered body portion, the tubing is configured to provide. a circumferential bulge or enlargement I3 beyond which the tubing during its initial configuration retains its cylindrical formation in the form of an upper extension Il as shown in Fig. 2, This is the condition of the tubing section at the conclusion of the configuring operation which as stated may be performed in the manner described in the Dewey patent aforesaid.

Thereafter the upper extension il has its opposite side walls pressed together to provide a double walled flattened extension I 4a the upper end of which is then bent to the form of an arch lib having a curvature concentric with the curvature of a half-dome shaped shade I5. Ihe pressing together of the side walls produces a shoulder I6 above which the combined walls afford a vertical connecting section Il merging into the arch IIb. The outermost shoulder I6 is apertured to provide for the insertion of a screw collar I8 through which extend the current wires I9 leading to the lamp socket 20 the neck of which is inserted through an aperture 2I in the vertical section Il so that the socket and the inserted lamp bulb will extend in a horizontal direction beneath the shade.

i In order to provide for the tilting of the-lamp shade, the arch Ilb is provided with an elongated slot 22 through which extend headed rivets 23 provided with spring collars 24 which permit the shade to be tilted invarying degrees about the axial center of the shade and arch.

If desired the downwardly tapering side faces of the body II) of the standard may be flattened to provide paneling 25 or other ornamental configuration.

The lower enlarged foot i2 of the standard is secured to a base 26 preferably of flattened cylindrical formation provided with a surrounding side wall 21 and a top 28 which as shown is provided with a series of corrugations 29 affording channels 30 for the reception of pens or pencils, and in addition, the base as shown is provided with an obliquely disposed fountain pensocket 3| although these features may be omitted or modified as desired.

y'l'he lower enlarged foot l2 of the standard extends down into a socket well 32 whichis formed by depressing the metal in the top of the base to provide a surrounding side Wall 33 and a base or floor 34 with a plurality of corner apertures 35 into which the metal composing the lower edge of the standard is expanded in the form of a plurality of protuberant lips or bulges 3B so that with the lower edge rim of the standard resting on or` adjacent, to the floor 34 of the socket and with the lips4 or bulges 36 forced outwardly in-to the corner apertures 35, the standard will be rigidly and immovably locked to the base without the addition of any extraneous fastening means.

The current wires I9 are carried downwardly throughl the standard and through a center aperture 31 in the floor of the socket well 32 and make connection with tongues 38 projecting outwardly from a suitable switch 39 carried by the top of the base which affords a convenient means for switching the current on and oil'.

The formation and method of configuring the standard are such as to reduce to a minimum the number of steps involved in its fabrication since the process of the Dewey patent previously referred to is one which permits a plurality of unit sections to be formed from a suitable length of tubing and thereafter cut into units to be finished as lamp standards in the manner previously described.- That isto say each unit section simply requires the flattening of the upper terminal portion end, which allows its bending to arch formation and at the same time affords a widely distended flattened upper surface for contact with the under face of the hemispherical shade and at the same time provides a convenient form of connection for permitting the shade to be angularly adjusted to the desired degree.

The attening of the side faces of the standard to produce the paneled effect is of course optional although the formation of the standard is such .as to readily lend itself to a paneled design on two or more sides of the standard.

The method employed in unitingthe standard to the base isv one which permits the parts to be quickly assembled and interlocked by theappli-l cation of anappropriate tool, and the enlargement at the foot of the standard affords abundant stock of material to secure a firm and rigid conv nection.

Various modifications in the designv and finish of the lamp may be made without departing from the spirit of the invention.

I claim: A

1. In a lamp, the combination of a base, a

standard rigidly mounted near one edge of the `base and upstanding therefrom, the standard being formed of tapered tubular material progressively increasing in diameter toward its upper end and provided at its upper end with an extension having opposed wall faces thereof pressed together and bent to the form of a flat- I4. In a lamp, the combination of a and tubular standard upstanding from the base and .f

provided at itsl lower end with an enlarged foot rigidly secured to the base, the standard above the foot merging through a shoulder into a neck of reduced diameter and progressively increasing 5. In a lamp, the combination of a base and tubular standard upstanding from the base and topped arch in cross section overhanging the central portion of the base, and a dome shaped shade secured to the overhanging flattened standard extension and having its inner surface in facial contact therewith.

2. In a lamp, the combination of a base, a standard rigidly mounted upon and upstanding from the base, the standard being formed of ltubular material provided at its upper end with an extension having opposed wall faces thereof pressed together and bent in the form of an arch to overhang the base and presenting a attened upper surface in cross section', and a shade of dome-shaped configuration conforming to the curvature of said arch and overlying the arch and having its inner surface in facial contact therel with and secured thereto by a slot and pin connection to permit angular adjustment of the shade.

3. Ina lamp, the combination of a base, a standard rigidly mounted upon and upstanding from the base, the standard being formed of tubular, metal of progressively increasing diameter toward its upper end and provided at its upper end with an extension having the walls thereof pressed together and bent in the form of an arch overhanging the base and presenting a flattened top in cross section, and a shade having its inner surface in facewise contact with the overhanging flattened standard extension.

provided at the lower end with an enlarged foot rigidly secured to the base, the standard above the foot merging through a shoulder into a neck of reduced diameter and progressively increasing in diameter from the neck toward the upper portion of the standard, the standard at its upper end terminating in a flattened extension having its opposed wall faces pressed together, said extension comprising a lower vertical section having a bulb socket secured therethrough and an upper terminal section of overhanging arched formation and a hemispherical shade adjustabiy mounted upon and overlying the arched upper portion of the standard and'with its margin extending behind the vertical section.

6. In a lamp, the combination of a metallic base provided with'a well shaped socket having a' floor and surrounding sidewalls with a plurality of corner apertures, a standard of tubular formation having its lower end inserted into the socket and with its margin pmvidedwith out-` wardly flared vhumps entering the corner apertures, the standard at its upper end having the tube walls flattened together and bentV to overhanging relation to the base, and a shade secured to the overhanging portion of the standard.

7. In 'a lamp, the combination of a metallic base provided with a well shaped socket having a floor and surrounding side walls with a plurality of corner apertures, a standard of tubularformation having its lower end inserted into the socket and with its margin provided with outwardly flared humps enteringthe corner apertures, the standard at its upper end having the tube walls flattened together and bent to loverhanging rela tion to the base to afford an arch shaped shade supporting section, provided with an elongated slot therethrough and a shade having a rounded Wall conforming to the curvature of the arch shaped section and securedV thereto by members extending through the slot to permit angular adjustment of the shade.

CLARENCE L. DEWEY.