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Publication numberUS1671510 A
Publication typeGrant
Publication dateMay 29, 1928
Filing dateJan 12, 1924
Priority dateJan 12, 1924
Publication numberUS 1671510 A, US 1671510A, US-A-1671510, US1671510 A, US1671510A
InventorsCarmichael Andrew J, Oresto Balzano
Original AssigneeGreist Mfg Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Portable lamp
US 1671510 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

Mayz9,192s. 1,671,510


A. J. CARMICHAEL ET AL PORTABLE LAMP Filed Jan. 12, 1924 2 Shets-Sheet 2 ,Hmmm

Patented May' 29, 1928.



v.PORTABLE rami?.

` vApplication iiled January 12,1924. SerialNO. 685,908.

\ This invention relates to portable lamps, and more particularly to portable electric lamps. y

An object of `the invention is to `provide a 5 lamp of the type'reterred to which vwill be neat andy attractive in appearance, which may be manufactured economically, and which will embody means for clamping the lamp to a suitable support, and will reliably maintain the lamp clamped to such support. Another object of the invention is to provide a lamp of the type referred vto with means for suspending it trom an object such as a nail or screw which projects from aA vertical wall, or the like.

j With the above, and other important objects in view, the invention comprises as an important feature a plurality of sheet metal membersl which are arranged to slide upon each othertelescopically, one ot said members being connected to the lamp, and

the base thereof, and the other oi said members connected to a clamping part, there being springs or other tension devices extending betweenjsaid clamping part and a part which is rigidly Connected with one of said slidable members. The spring or springs are put under tension when the clamping device is withdrawn from the base of the lamp for the purpose of clamping the lamp to a support. Other features of the invention. such as important details of construction, and

` combinations of elements, will be betterunfderstood from the following description of the invention, in connection with the accompanying drawings, and the novel features will be pointed out in the appended claims.

Inthe drawings: v l

` Fig.` 1 shows a lampL in side elevation ein-- bodying the invention;

Fig. 2 is a plan view; f v l Fig. 3 is a yside elevation taken 'at right angles to Fig. 1, with certain parts in section, and showing the clamping members engaging a support;

Fig. 4 is a horizontal section'on the line 4-4, Fig. 3, and, w

Fig. 5 is a horizontal section on the line 5 5, Fig. 3.

The usual lamp socket 2 contains a bulb 3, upon which is supported the lamp shade 5, the latter being herein shown in the form of truncated pyramid.' `This design of shade is' attractive in appearancel and `har`v monizes artistically with thefother partsot 'the lamp to'be described-f The form of the'.

lamp shade is no part ot the present invention, and is not claimed herein.

The lamp socket 2 is provided with two downwardly projecting` spaced lugs v6 to which are pivotally attached the spaced terminals of a U-shaped sheet metal lamp'sup# porting member 8, the terminals ol said member being herein shown as disposed outside ot" the lugs 6 towhich they are connected pivotally by la suitable pin or rivet 7. The base of the lamp is herein shown square in its outline, and comprises a pyramidal raised portion 10, and a flattenedl lower portion 12. The U`shaped member 8 is rigidly con'nected'at its lower, closed end, as by a screw 11 to the center ofthe raised portion '10 of the base. f

A 'lower flat, i preferably r square, sheet metal clamping member 14 underlies the base of thel lamp, the iiattened part 12- ot which base normally rests upon the clamping member', as shown in Fig. 1. The clamping member is provided on its upper tace with two spaced hooks 15 to which the lower ends of two springs 18 areconnected,

said springs extending upwardly through openings 19 in .the base 1Q and having ytheir upper ends `passed over the hook-shaped ends of a yoke 20, which yoke passes through registering slots 21 in the side members of the support 8.

Extending upwardly Jfrom the center portion of the clamping member 14 is a U- shaped sheet metal guide 22. The sides ot this guide pass through slots 123 in the top 10 of the base, and the upper end of the guide is provided with a squareopening to receive slidablry the U-shaped support 8. As shown, the support 8 and guide 22 slide telen scopicallyrelatively to eachother as members 12 and 14 are caused to separate or ap#V that in order to clamp the lamp to a shelfor support,.such as 30, the member 14 will be pulled away from the member 12a distance sufficient to permit said members to embrace the support, the springs 18 being stretched or tensioned duringythe separation of the parts, and that Asaid'springs will react to clamp'tlie Imembers 12 and-"..Mlto said support, when the parts are released.v

The clamping member 14 is provided, near one edge, with akey-hole slot 23, a portion of the "edge of the flattened part 12 o'fthe base being cut away at 25 to expose said slot;

`desired, which isA neat in appearance and attractive as a Whole inconnectionwith the base and clamplng member.. At the same time sucharrangement possessesa minimum number `of parts, all of such partsbeing-of.

sheet metal except the springs, yand being economical to manufacture. The lamp Lwhen seen standingl yas a table lamp rupon any sup'- porting surface would instantlycconvey to the beholders mind a recognition of the flact that it was a clamping lamp, and such indication ot' the `character of the ldevice is desirable as ftheusefto which it-may beput becomes obvious upon mereinspection. and requires no explanation or directions. It is also a-desirable feature of tlieLconstruction referred to, that the key-hole slot vin the base plate is visible from above, Whichalso instantly conveys the impression that the'lamp can be hung up upon a wall hook, or nail, or screw head. .n

It is obvious `that the invention ,is not necessarily limited in kall respects tothe specificv construction and arrangement of its various elements as 'disclosed in the drawings, las

these maybe varied to some extent without departing frointhe principles of Athe invention,` provided .suchvariations in construction or arrangement are not of a characterv y `combinationfo'fa la1np,.a, lamp base, a support connectmgsaid lamp and base, a clamp to Abe excluded from the scope of the,follow ing claims. f

We claim as our invention: f

1.1 In a portable and adjustable lamp, two U-shaped' members arranged to slide one Withinthe other, one of said members-connected ati one endA withthe lamp, ambasefsecured `to the other end of' said` member,. and the other member connected with a clamping device, a yoke extending transversely of the lirst-mentioned member, and springs having one end'connected with said yoke .and the.

other end 1 attached -to said clamping' device.

2. In a `device of the classtdescribed, a

U-shapedvsheet metal member,means for to a support.

connecting one end thereof to a lamp, a lamp base connected with the other end of said member, a second U,shaped vmember provided With an aperture at its closed end to receive telescopically the Iirst-named member, a` clamping device connected with the open end kof said second Ueshaped member., and a springhaving connection at one end with the'Iirst-named member, and at its other Aend with said clamping device.

connected at its freevendsvwith ja clamping device, ar yoke :extending through vthe ,firstnamed member, anchoring, means secured .to said clamping device, and f, springs connecting 'said yoke and anchoring means, `said springs arranged.v to be tensionedwhen. the clamping device is separated from -the base, and to act yieldingly for clamping said parts 111-. In a device of the iclassdescribed, aA

U-shaped sheet metal'support, means for p iv-i otally connecting the free ends of said Isupport witha lamp, a hollow sheet metal kbase provided with spaced openings, means `for securing the other` endof saivdesupport to .said base, a yoke extending transversely,f

through aperturesiin4 said suppordafclamping rmember cooperatively related to said base, a U-shaped .guideextendingthrough [slots in said base and having atv one end. an`

`opening to slrdably. receive sald support, the,

opposite ends of said guide being secured to the clamping member, vand springs attached at one end to said yoke andtat their opposite end to said ,clam-ping ,'niemher, said said hase-.- j .A v,

5. vIn a device of the' classkdescribed, the

.springs extending .through the openingsin i,

having a vguide for slidablyrengaging said`l support, and two'springs located, respec- .tively,1upon,oppositesides of the longitudinal center line of the lamp and so connected to the yparts as -toyieldingly urge the clamp toward the base, said Asprings beingexpose'd l ourhands thisv9th day of. January,


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4118003 *Nov 21, 1977Oct 3, 1978Dillow Paul ERadio antenna mounting device
U.S. Classification248/231.41, 362/388
International ClassificationF21V21/08
Cooperative ClassificationF21V21/08
European ClassificationF21V21/08