US 2247022 A
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Description (OCR text may contain errors)
June 24, 1941; F. cs. HOVORKA LAMP Filed Nov. 6, 1959 Z SheetS-S'neet l In venior F Hal/0mm Attorneys 2 Sheets-Sheet 2 June 24, 1941. F. G. HOVORKA LAMP Filed Nov. 6, 1939 Inventor Patented June 24, 1941 UNITED STATES PATENT 7 OFFICE a v 2,247,022 I t l LAMP .FrankG. Hovorka, Twin Falls, Idaho I ApplicationNovember 6, 1939; sem No. 303,131 7 4 1 Claim: (01. 240-521) M My invention relates to improvements in service lamps of the electric light type, for attachment more particularly to various parts of automobiles although, as will presently appear, it is also adapted for general application to benches, beds,
and various other objects.
The primary object'of the invention is to provide an electric light support adapted to clamp to bolts, rods, or other roundparts, of different sizes at various angles to the axis of the parts and which provides for universal adjustment of the light into different set positionson the support, is easy to attach, of strong construction, and inexpensive to manufacture.
To the accomplishment of the above, and subordinate objects presently appearing, a preferred embodiment of my invention has been illustrated in accompanying drawings, set forth in detail in the succeeding description, and defined in the claim appended hereto.
In said drawings:
Figure 1 is a view in side elevation of the preferred embodiment of the invention,
Figure 2 is an inverted plan view of one of the jaw-carrying arms,
Figure 3 is a view in transverse section taken on the line 3-3 of Figure 1, looking in the direction indicated by the arrows,
Figure 4 is a fragmentary inverted plan view of the other jaw-carrying arm,
Figure 5 is a similar view of the inner end of said other arm,
Figure 6 is a view in perspective of the jaw tensioning spring,
Figure 7 is a view in edge elevation of the fastener for the shade and hood unit,
Figure 8 is a view in longitudinal section taken on the line 8- 8 of Figure 1 looking in the direction indicated by the arrows and drawn to an enlarged scale, and
Figure 9 is a view in transverse section taken on the line 9-9 of Figure 1 looking in the direction of the arrows.
ends thereof terminate in a pair of opposed in-' turned flanges 5 extending across said ends'and forming teeth for gripping opposite'sid'esof a shelf, ledge or like device. A split ring 6 'of'flat resilient metal is interposed between the end portions 3"with its ends engaging the inner ends of the jaws 4 as shown at Figure 1, said ring being retained in the channels of said portions 3 by edge lugs as at I, on said portions bent across the edges of said spring. The ring 6, as will be clear, spaces the arms I, 2 apart, couples the same together and reacts to urge the jaws 4 toward each other into clamping relation.
As will now be seen, by graspingthe inner ends of the arms I, 2, and pressing the'same together, the jaws 4 may be separated to open the same so that they may be" clamped to a selected part, and upon release of said arms the jaws-4 will clamp the part therebetween under reaction of the ring 6. As will also be clear, by virtue of the arrangement of the ring 6 in the end portions 3, the jaws 4 will open wide since the ring 6 opens up at its ends.
Each jaw 4 is provided in the longitudinal center thereof, on its inner face, with a groove 8 and also with a pair of diagonal side grooves 9 diverging from the front ends of the groove 8. The grooves 8 are complemental to each other whereby they are adapted to receive a bolt, rod, or the like, therein so that the arms I, 2, may be clamped to one end of the same to extend therefrom parallel therewith. The pairs of grooves 9 are also complemental each to the other so that said arms 4 may be similarly clamped to the bolt, or red, to extend therefrom at different angles as will be manifest.
A sleeve-like coupling I0 is secured to the inner face of the arm I, adjacent the inner end thereof by a pair of diametrically opposite central studs I I on the coupling and a pair of apertured edge lugs I2 on said arm receiving the studs, the coupling, as best shown in Figure 1, fitting into the channel of the arm. A suitable length of BX cable I3 is extended at one end through an apertured lug I4 on the inner end of said arm I and turned into one end of the coupling I0 against an apertured partition I5 in said coupling. The other end of the cable I3 has attached thereto, in any suitable manner, the conventional light socket I6 having the usual neck part I! for receiving an electric light I8. The usual lead cable I9 extends from the socket I6 through the cable I3 and through the partition I5 of coupling III for connection of the usual plug in line 20 thereto. The plug-in line 20 is extended through an apertured lug 2| on the inner face of the arm I and provided with the conventional form of spring connector 22 interposed between the lug 2| and coupling l and adapted to screw into the coupling in a well-known manner. The usual connection between the line 20 and the lead cable I9 is designated at 23.
A combined shade and guard unit 24 for the light l8 and socket I5, respectively, is provided, said unit comprising a concave, oval shade part 25 partially surrounding the light I8, a reduced intermediate part 26 fitting part-way around the neck I! and a rear hood part 21 of semicircular cross section fitting part-way around the body of the socket l6 and having a central enlargement 28 for accommodating the switch button 29 of the socket when the unit is rotated around said socket and ligiht. The described, unit is rotatably mounted on the cable l3 by means of a sleeve 30 extending from the hood part 2'! and of semicircularcross section, substantially, for fitting over said cable, the sleeve terminating in an end flange 3!. A coil spring 32 surrounding said sleeve and cable secures the former to the latter so that the unit 29 may be rotated about the: cable l3, socket I6 and, light 18 as desired. To further secure the unit 24 in proper position a split, ring-like clasp 33 is provided for surrounding the part 2.6 and neck 11, said clasp; being of resilient metal and provided on one end with a button 34 and on its other end with a hook fastener 35 adapted to snap over the button 34.
As will now be seen, in any position in which the arms I, 2 of the described pincer-like support are clamped to an object, the light 18 may be universally swung on the arm I to difierent set positions by bending the-cable 13. Also the unit 24 may be rotated into any desired position to shade the light [8 from any angle. The manner in which the clamping jaws 4 are operated has been set forth. It may be further explained, however, that said jaws 4 are also adapted to rigidly clamp to objects of flat and other shapes, the grooves 8, 9, facilitating gripping by said jaws and the teeth 5 coacting to further facilitate such gripping action.
The foregoing will, it is believed, s fi ce to impart a clear understanding of my invention without further explanation.
Manifestly the invention, as described, is susceptible of modification without departing from the inventive concept, and right is herein reserved to such modifications as fall within the scope of the subjoined claim.
What I claim is:
In a lamp, a pincer-like support for clamping to a fixed part comprising a pair of elongated arms spaced apart in a common plane in opposed relation and having substantially semi-circular outer end portions oppositely bowed and internally channeled and terminating in a pair of flat T-head extensions forming a pair of opposed clamping jaws said extensions having rightangled innerendsextending in between said bowed portions and providing a pair of opposed clamping teeth on said jaws, a pair of inturned lugs on each bowed portion, respectively, a split resilient ring fitting into the channels of said portions and extending between said pairs of lugs and having the ends thereof bearing on said inner ends of the jaws, respectively, whereby said jaws are yieldingly urged into clamping relation for relative separation by manipulation of said arms, and a lamp bulb mounted on one of said arms.