US1893071A - Adjustable supporting mechanism for lamps - Google Patents

Description

Jan. 3, 1933. w. N. DE SHERBININ 1,893,071

ADJUSTABLE SUPPORTING MECHANISM FOR LAMPS Original Filed April 9. 1929 3 Sheets-Sheet l 17 16 ,y 11 1a 10 I ATTORNEYJ' Jam 1933' w. N. DE SHERBININ 1,893,071

ADJUSTABLE SUPPORTING MECHANISM FOR LAMPS Original Filed April 9, 1929 3 Sheets-Sheet 2 INVENTOR W1! [lam/14' deflaz'h'izm.

Wm k M ATTO N EYS Jan. 3, 1933. w'. N. DE SHERBININ ADJUSTABLE SUPPORTING MECHANISM FOR LAMPS Original Filed April 9, 1929 3 Sheets-Sheet 3 INVENTOR I li illmjildeflfierhzzm BY 09M PM ATTQRNEYS i TATEd l WILLIAM H. DE OF HASTIF'GS UPGN-EUDSGN, NEW YORK ADJUSTABLE" SUPPORTING Er'ZECl-IANZSL-I FOE LAMPS Application filed April 9,1929, Serial Myrinvention relates to adjustable supporting mechanism readily actuatable to position and retain a lamp or other object or device in a selected or desired position.

My invention relates particularly to lamp .upporting structure comprising a standard having a lamp carrying pivoted arm slidably and/or rotatably mounted thereon and manually actuatable at will to bring the lamp into or closely adjacent a region wherein a high degree of illumination is desired.

Further objects, advantages and characteristicsof my invention will appear from the following detailed description.

My invention resides in the supporting mechanism, arrangements and features of. construction of the character hereinafter described and claimed.

For an illustration ofsome of-the many forms my apparatus or mechanism may take, reference is to be had=to the accompanying drawings; in which:

Figure 1 is a side elevational view of lamp supporting mechanism constructedin accordance with my invention;

Fig. 2 is a horizontal sectional view, partly in plan, and istalren on the line 2-2 of Fig. 1 look ng in the direction of the arrows;

Fig. 3 is an enlarged vertical sectional view,

- partlyin elevation, of a part-of my supporting mechanism;

4 is a side elevational view of another form of lamp supporting mechan sm;

Fi 5 is a horizontal sectional view, partly in plan, and is taken on the line 55 of Fig. Mocking in the direction of the arrows;

Figs. 6 and 7' are plan views illustrating different forms of arms coactablewith a lamp supporting arm;

Fig. 8- is a fragmentary side elevational view showing the arm shown in Fig; 7 associated with a lamp supporting arm;

I Fig. 9 is a side elev-ational view illustrating an arrangement for temporarily and releasably retaining a lamp in a multiplicity of positions;

Fig. 10 is a perspective View illustrating a modified form ofstandard of support;

Fig. 11 is'a side elevational view of another-form of lamp supportingmechanism;

Ho. 353,852. enewcd May 21, 1932.

Fig. 12 is a horizontal sectional view, partly in plan, and is taken on the line 12-12 of Fig. 11 looking in the direction of the arrows; and

Fig. 13 is a horizontal sectional view, partly in plan, and is taken on the line 1313 of Fig. 11 looking in the direction of the arrows.

Referring to Figs. 1, 2 and 3, S is a standard or support of any suitable character upstanding, in the example shown, from a base or pedestal 1. Slidable lengthwise of standard S and pivoted for movement in a vertical plane is an arm or. member 2 to the upper. end of which is secured, in any suitable manner, an illuminating device herein shown as the'bulb 3 of an incandescent lamp. In the example shown, bulb 3 supports any suitable shade 4 and, in turn, is supported by a socket 5 upstanding from'a member 6 pivoted for free movement in the bifurcated end of arm 2. Depending from the member 6 is a weight 7 util zable-for maintaining the bulb 3, shade 4, socket 5 and member 6 in substantially the position shown no matter to what position the arm 2 is moved.

The end of the arm 2 removed fromthe lamp may be slidably, pivotally and rotatably secured to the standard S in any suitable manner. As shown, there is thus utilized a sleeve 8 freely slidable on said-standard S and having a projecting ear 8a to which at 9 said last named end of'the arm 2 is pivoted. virtue of the construction ust described, arm 2 is freely sl dable on and with respect to said standard S- and, due to the provision of the 8 pivot 9, is freely oscillatable in a vertical plane. Obviously, the arm 2 may be swung on its pivot, as desired, to move the therebycarried lamp either toward or from the stand ard S. Thus, for example, said lamp may be retracted as illustrated by the full lines of Fig. 1 or extended as il ustrated by the brohen lines of said Fig. 1. the latter position being the one usually occupied thereby when it is desired to bring the source of light into a part cular or desired region.

Any suitable construction may be utilized for thus retaining the arm 2 and theth-erebycarried lamp in a desired position. In the example shown, there is provided an arm or 'member10 fixed to or with respect to the aforesaid standard S and suitably coacting with the arm 2. A satisfactory arrangement for effecting connection between the arms 2 and 10 involves the provision of an elongated, closed slot 100; in the latter arm for slidably receiving said arm 2. For securing the arm 10 to the standard S, there may be utilized a sleeve 11 suitably fired to the latter, as by a setscrew 1'2, and, by preference, rotatably receiving on a shouldered surface thereof the ring 13 in which the aforesaid arm 10 terminates, said ring 13 being suitably retained against the aforesaid shouldered surface, as by a member 14 threaded tosaid sleeve 11 V with theparts positioned as illustrated by the full lines of Fig. 1, the arm 2 or some part carried thereby may be manually manipue lated to elevate the lower end thereof and the sleeve 8 to thereby move said arm 2 into the position illustrated by the broken lines of Fig. 1. In so doing, the sleeve 8 slides upwardly on the standard S and the arm 2 slides through the slot 10a of arm 10. Upward movement of sleeve 8 is limited by the sleeve 11, the latter, therefore, defining the fully extended'position ofthe arm 2 and the extended position of the lamp. In this position and in its retracted position, the lamp and its supporting structure comprising the arms 2 and 10 msaybe rotated or moved around the standard The arrangement is such that, ordinarily, the arm 2 and the partscarried thereby remain in the position illustrated by the broken lines in Fig.1 until manually moved from such position. This result follows due to the friction of the parts and to the weight of the lamp and'its direct supporting structure com prising theparts 3, .41, 5, 6 and 7 to the right of the arm 10, Fig. l. V

Under some circumstances, it may be'desirable to provide a counterbalancing arrangement for the standard S when the arm 2 and the parts carried thereby are in the position illustrated by the broken lines of Fig; 1. 7 To this end, if desired, links 15 and 16 may be pivoted together in end-to-end relation, the

link 15 being pivoted to the sleeve 11 or, and preferably, to an ear13aof the aforesaid ring 1 13 and the link 16 being pivoted to an ear 8?) of the aforesaid sleeve 8. Vfhere the links 15 and 16 are pivoted in end-to-end relation, there is mounted or disposed a weight 17.

. By virtue of the arrangement just described,

the standard S does not readily tip when the parts are in the position illustrated by the broken lines of Fig. 1. In this position, the weight 1'? lies below the pivotal connection of the link 16 to the sleeve 8 to releasably look links 15 and 16 in the position illustrated.

The aforesaid incandes ent lamp may be supplied with electrical current in any suitable manner. As shown, the standard S is position as illustrated by the Ordinarily, the base or pedestal 1 should be relatively heavy so as to preclude tilting of the standard S under the influence of the various projecting parts carried thereby; particularly is this true when the links'15, 16

and weight 17 are omitted. However, it

shall be understood that supplementary de' vices may be utilized, if desired, for retaining the base 1 in engagement with its supporting surface. V 3

Referring to Figs. 4 and 5, a plurality'of lamp structures are illustrated as supported or carried by the same standard S and the arrangement is such that said lamp structures may be disposed in suitable diverging relation as desired as well as extended to a position removed from the standard S. The structural arrangement for obtaining this end may be of any suitable character.. As illustrated, the standard S'lias mounted thereon a sleeve 20 carrying, in superposed relation, rings 21, 21 freely responding sleeve illustrated in Figs. 1 and 3.

Carried by and freely rotatable on said sleeve] 11 are rin s 22, 22 having arms 10 projecting, respectively, therefrom, said arms 10 being substantially identical with the correspond ing arm 10 described above in connection with Fig. 1 and the arms 2, 2 of Fig. 4

I likewise be 111g substantially identical with the corresponding arm 2 d escribed'above in connection with Fig. 1.

Obviously, one or both of the lamp structures may be moved to the fully extended in Figs. 4 and 5. At the same time, said lamp structures may be brought closely adjacent to or substantially removed fromeach other by either decreasing or increasing the angle betweenthe respective structures comprising an arm'2 and an arm 10. The result last stated is readily attainable because the rings 21 are freely rotatableon the sleeve 20 and, similarly, the rings 22 are freely rotatable on the sleeve 11.

InFig. 6, there is illustrated one of the aforesaid arms 10 which, as hereinbefore stated, comprises a closed elongated slot 10a rotatable thereon. I To the respective rings 21, the'arms 2'are' broken lines Fig. 8, alamp. supporting arm. 2. extends through theperforation QSDand, due to the.

angular relation just' specified, said arm23 functions as satisfactorily as. arm;10 toposis tioirthe coacting arm 2. asdesired.

With the arrangements hereinbefore; de-. scribed, the construction is such that,.ordinarily, the various lamp structuresremain. in'buttwo positions, 1. e. ,..th'e.'ful'ly'extended.

positionzwhen the sleeves 18 or as the case maybe are in their uppermost positions, or the fully retracted 110511310118;WllQIliSZllCl' sleeves are' at their lowermost positions. Re: ferring toFrgtxQ, there is illustratedan arrangement for temporarily and releasably. retaininga lamp structure in any one ofia multiplicity of positions. To thisend, there maybe utilizedan arm Qlwlnchmay be identical with the arms 2 hereinb'efore de:

scribed with the exception that, one face. thereof is roughened,.serrated or: provided Wltlhl'l-Ck teeth" 2 1a coactable with an end.

wall defining the slot 10a, orequivalent, of a member- 10, or equivalent. Obviously, as the member 2401* some part carried thereby manipulated to raise the sleeve- 8, therack teeth 24a are ineffective-to =haltrthe'tiltin'g progress of said arm 2%. However, afterrsaid sleeve 2% has-been tilted .to'some extent, it

may be released whereupon one of the rack.

teeth 24a by engagement with arm 10,-,re-.

tains arm 24 and the parts carriedthereby' in this position until said arm 24 isreleased. In Fig. 10, there 18 illustrated an appl1cation of my'invention and one wherein there isutili'zed a -modified form of'standardsl. secured. in: spaced relation, to a-post suitably at the head ofabed B. A's-shown .inJFig;.1O, standard S1 carries structure identical with that heretofore discussed in connection, with Fig. 1 with the exception that the counterbalancing mechanism comprising the links15 and 16 together with'the weight 17 is omitted. Obviously, with the construction such as illustrated in Fig. 10, a person reclining upon the bed B may readily extend the lamp to such position that highly satisfactory illumination is provided for reading or other purposes.

Referring to Figs. 11, 12 and 13, there is illustrated an arrangement wherein dupli cate lamp structures are disposed in a single plane, or substantially so, and on opposite sides of the standard S. As one example of an arrangement which is thus utilizable, the

' standard 5 may have a sleeve 8 slidably disposed. thereon which, corresponds substan: tially with the slmilar: sleeve 8 heretofore described in connection with Fig. 1 and therefore having lugs orears 8a and 8b projecting therefrom on opposite sides thereof and disposedina single plane. To the ears 8a and 87), the. respective arms 2 are secured and these arms may be of the character above de scribed inconnection with Fig. 1. Fixed to the standard S a suitable distance above the lowermost position of the sleeve 8 is the sleeve 11 which is substantially a duplicate of' the corresponding sleeve illustrated in Figs. 1 and 3 said sleeve 11 being retained in adesired position by a set screw 12, or equivalent. Carried by the sleeve 11 in nonmovable relation with respect thereto is a ringhaving arms 26, 26 projecting from opposite sides thercofand being disposed. substantially in vertical alinenient with the respective arms 86 and'8av of sleeve 8, said arms 26, preferably, being slotted and otherwise conforming with the hereinbefore described arms 10, the slots of said arms receiving, the respective arms 2.

One or both of the arms 2 or parts carried respectively thereby may be manually grasped to move the sleeve 8 upwardly and thereby bringthe lamp structures'to their fully extended positions such, for example, as indicated by the broken lincsin Fig. 11 wherein said lamp structures are disposed on opposite sides of the standard S and substantially in a sin 'le plane;

A construction oft-he character illustrated ln'Flg. 11 is especially suited to be. disposed closely adjacent the wall of a room. When thus disposed, it may be desirable to provide a base or pedestal 1a of the character illustrated in Fig. 13 to thereby enable the standard S and the lamp structures carried thereby to be brought closely adjacent said wall.

l/Vith all forms of my invent-ion save that illustrated. in'Fig. 9. it may be desirable to utilize an antifriction roller, member or structure between the lamp supportingarms and the arms coacting respectivelytherewith andlsecured to the standards S, S1. or equivalent. Ordinarily, suchanti-friction mechanism is suitably mounted or disposed at those ends ofsaid lastnamed arms immediately adjacent the respective lamp supporting Although the various lamps have been.

be frictionally associated with any one of the pivoted arms 2, 24, or equivalent, the degree of frictional engagement being such that the v lamp may be readily tilted to and remain in.

any desired position.

It shall also be understood that'the arms 10,

thereto, a lamp may be suitably-supported at;

this point, said lamp, therefore, being retractable and extensible the same as 1s the lamp 3. Moreover, if des1red,thearms 2 and lO'niaybe omitted and the links 15 and 16 utilizedas the supporting structure for a lamp.

While the invention has been described with respect to certain particular preferred examples which give satisfactory results, it

- willbe understood by those skilled in the art after understanding the invention, that vari ous changes and modifications may be made without departing from the spirit and scope of the invention and it is intended therefore in the appended claims to cover all such changes and modifications. 1

What is claimed as new and desired to-be secured by Letters Patent is: 1

1. The combination with a standard, of a pivoted arm slidable lengthwise ofsaid standard, a lamp carried by said pivoted arm, and

means comprising anon resilient arm of constant length fixed to said standard and c0act ing with said pivoted arm forretaining it in a selected position.

2. The combination with a standard, of a sleeve slidable on said standard, an arm pivoted to said sleeve, a lamp carried by said pivoted arm, a second'arm having a slot receiving said pivoted arm, and means for se curing said second arm to said standard, said means limiting movement in one direction of said sleeve.

3.. The combination with a standard, ofan arm connected to and mounted for pivotal movement with respect to said standard, a

lamp carried by said arm, and asecond arm coacting with said standard and with said first arm for holdingthe latter in retracted or extended position, said arms being slidable with respect to each other. I

I 4. The combination with a standard, of an arm slidable on said standard, and a lamp carried by said arm, said standard comprising constant-length means with respect to which said arm is slidably related, said means guiding said arm for movement to retracted or extended position.

5. The combination with a standard, of an arm, means for slidably securing one end of said arm to said standard, a lamp carried by saidarm, and a member projecting from said standard, said arm being slidably related with respect to said member, said member guiding said arm for movement to. re t-racted or extended position.

. 6. The combination with a standard, of anarm carried by said standard, a lamp carried by said arm, means forming a connection be-' said arm being slidably related with respect to .said' member, said member guiding said arm for movement to retracted or extended position, that section. of said arm which is slidable on the standard being movable toward or from that section of said member which is secured to the standard.

8. The combination with a standard, of an arm slidably'and pivotally mounted on said standard, alamp' carried by. said'arnnqand a member secured to and projecting laterally from said'standard, saidarm'be'ing slidably related with respect to said member, said member guiding said arm for movement. to retracted or extended position, that section of said arm which is slidable on the. standard being movable toward or from that section of said member which is secured to the standard.

9; The combination with a standard, of an arm slidable on said standard, a lamp carried by saidarm, and ai'nember secured to and projecting laterally from said'standard, said arm being slidably related with respect to said member, said member guiding said arm.

for movement to retracted or extended position, that section of said arm which is slidable on the standard being movable toward or from that section of said member which issecured to the standard, said arm and said member being rotatable around said standard.

In testimony whereof, I have signed my name to this specification.

' WILLIAM N. on SHERBININ.

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