US963913A - Adjustable lamp. - Google Patents

Description

A. S. LYHNB. ADJUSTABLE LAMP. APPLICATION FILED Axum, 1910.

Patented July 12 1910.

INVENTOR:

irromvn Kremlin-Adjustable Lamps of'which the 10 raised or' lowered and may beadjustediboth y With these and other objectsin view' the nary conditions of; use; Fig; 2a view show-- is carried by a reflector and the reflector is citizen. of "the {United States; residing. at

. described and then specifically pointed out "a partofthis specification, in which similar inall of the views, Figure l is an elevation top desk and .usedto' throw the light on so that while the standard carrying the muse s. Lrsn rE,. or Bier-bemoan,"

a izr' usrsnnn' their.

. assets.

Ti h ll iwhom itmay conce'l n:

Be it known that. I, ANKE S'.l 'lYH'1-IE,a.

followingisfa specif catio y This. invent on has for its object to pre- ,v1de .a deskor read ng lamp which may be in the vertical and horizontal planes and which'while having these ad-j-ustinents may be set with the lamp in central alinement wfith the basemnder-t-he ordinary conditions -0 use.

invention consists in" certain details nf Gen-- struction lwhich, will be hereinafter fully inthe felaiins hereunto appended.

In the, accompanying. drawing forming reference characters indicate the same-parts illustrating -iny'novel lamp under th erdi-.

ing an adjustment to throw the light downwardas when'placed en the top. of a rollthe table-of theidesk and Figs. 3 and t are detail views illustrating adiustments' of the parts. j 1

lOdenotes the base which may belof any suitable ornamental Construction and is provided in its u per end with a hole 11 in which the sta'nilard 12 is rotatably secured, the standard being provided with a collar 13 which rests upon the top of the base and supports all the weight. The standard is relatively short and-is bent at a right angle lamp is free to be rotated in the. horizontal plane the lamp will remain in vertical aline- 1nent with the center of the base. I

In the form of lamp illustrated, the lamp carried by a rod let which is vertically -ad" justable and'inay a'lsobe rotatablyiadjusted in the horizontal plane, as will 'be' more t'ully described. r

I 15 denotes an ornamental casing which carries the lainp socket (not shown), 16 "the-I lamp and 17 an ordinary parabolicfretlector. The details of-attachmentof-;the lamp to. the reflector are not illustrated in detail as specifically they form no. .pprtion offithe .li -ucan on filed April 5,1916. -,ser1a1 a e. 554,262.-

'fPlBSGllhlIlVBllblOll'. The attachment of the reflector .torod 14 is likewise immaterial so far as the present invention is concerned. In the present instance the reflector is pro vided with a rearwardly extending threaded shank (see dotted. lines Fig 2) which'passes through an eye 18 at the *uppenend of the,

rod and is engaged by a nut 19.

The connection cit-the rod to the standard isthe important ie'ature'oii the present in.

vention. As already stated, the standard is relatively'short and is bent at a rightangle.

the hhrizontal portion being, indicated by 20. 'lhis'horizontal portion carries a block in its face with a recess. 2% with a serrated edge indicated by 23,. with a central hub 24' entendinggfroin the base 10f the recess and witha threaded shanlt25 extending. from the hub. "Corresponding Withblock 21 is a I 21' rigidly secured thereto which is provided block 26which is a apted tooscillate oh hub 24-,is provided with a recess 27 inits face,

with a serrated edge indicated by 28 which "is adapted to interlock with the correspond- .27 in the blocks and acts to separate them" when. the thumb nut loosened, as clearly 'ing serrated elge 23 onffixed block 21 and shown-in 4-. This adjustment enables finete swing the reflector and lamp bodily to r; position in' pie tethe 2, sheuld it be requii :tienshown. in Fig. to throw the light downward, for exa; ple when the lamp is laced. UMifl the toe of a-r'oltto) desk and T l 1 r the light is thrown downward upon the table or the eeslr. I

- The various adjustments ofthe'lainp may be briefly described follows: The vertical the vertical plane adjustment is effected by loosening set screwobvious I lnrthermore that this adjustment permitssthe lamp to be oscillated in the hori n ordinary upright use of zontal plane.

this adgustinent is not the lamp, how

31 and raising or lowering red 14. It is required owing to. the fact that the standard may be oscillated freely in'the base in the horizontal plane. This horizontally oscilto throw the li ht directly downward. or

latory adjustment of the .rod is therefore ordinarily utilized only-to the extent of loeating the lamp "in substantially vertical 'alinementfwith the center of the base, and

then looking the rod in lace by tightening up the set screw. Should oscillatory adjustment of the lamp in the vertical plane be required, as for example as illustratedin Fig;

2, thumb nut 32'is loosened and block 26 is oscillated on hub 24 to lace the lamp in the required position in this adjustment it will probably be required to loosen set screw 31'and. oscillate rod 14:

carrying the'reflector and lamp into position wherever required, the lamp being locked in position by tightening up the set screw again. In ordinary use of the lamp, that 1 is in the upright position, as in Fig. l, oscillatory adjustment in the horizontal plane is effected by simplv swinging the standard-on the base, the rod, reflector and lamp being carried around with it, any changes in adjustment in the horizontal plane not affect.

ing the vertical alinement of the lamp with the center of the base,

Having thus described my invention I claim 1. The combination with a base, a sta-nd-' ard rotatably secured thereto and bent at a the oscillatory block at any required adjust-- ment in the vertical plane.

2. The combination with a base, a standard rotatably secured thereto and bent at a right angle and afixed block carried by w hich it is locked by. tightening up the thumb nut. In effectinga serrated edge lyingthe standard andhaving a hub lying in the horizontal plane and a serrated edge lying in the vertical plane, of a block adapted to oscillate on the hub and having a corresponding serrated edge and a laterally offset guide, aspring so'cketed in saidblocks, .for the pu'r3ose set forth, a lamp-carryin rod adjusta ly secured in the guide an means for lockin the oscillatory block at any required adJust-ment in the vertical plane.

3. The combination with a base, a standard-rotatably secured theret'o' and bent at a.

right angle, a fixed block carried by the standard and having a hub and a threaded shank lying in the horizontal plane, arecess surrounding the hub'and aiserrated edge lying in the vertical plane, of a block adapted to oscillate on the -'hub and having a corresponding recess, a; serrated edge and a'laterally otf'set guide, a spring socketed in the.

recesses, -a lamp-carrying rod in the guide, a set screw for locking the rod at any required vertical (fir-horizontally oscillatory adjustmentand a thumb nut engaging'the [threaded shank for locking. the oscillatory block at any required adjustment in the vertical plane.

at. The combination with a bas'e,*astandardrotatably secured thereto andbent at a right angle and a fixed block on said standard having .a hub lying in the horizontal plane and a serrated edge lying in the vertical plane, of a corresponding block adapted to oscillate on the hub, a laterally otiset guide carried by the oscillatory block, a lamp-carrying rod vertically and rotatably adjustable in the guide, whereby" the lamp may be placed in central vertical alinement with the base, and means for locking the oscillatory block;

In testimony whereof I affix my signature in presence of two witnesses. v

' ANKER S. LYHNE. ll'itnesses:

.C'HAS. PHILLIPS, Hanan-xx K. BEACH.-

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