US861445A

US861445A - Electric-light hood.

Info

Publication number: US861445A
Application number: US32764006A
Authority: US
Inventors: Charles J Eichhorn
Original assignee: TEA TRAY Co
Current assignee: TEA TRAY Co
Priority date: 1906-07-25
Filing date: 1906-07-25
Publication date: 1907-07-30
Anticipated expiration: 1924-07-30

Description

EATENTEE JULY so, 19o?. C. J.E1CEE0EN. ELECTRIC LICHT Hoon.

APPLICATION FILED JULYZ. 1906.

a SHEETS-SHEET 2.

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WIT/VESSES:

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l UNITED- VSTATES PATE ARLES' J. EIoHnoEN, or NEWARK, NE7 JERsEY,-AssiGNoRTo THE TE@ or NEWARK, N. J., A ooEPonATIoN or NEW JERsE'Y.

Specification of Letters Patent.

ELECTRIC-LIGHT E'CQD.

VPatented. Tully 30, 1907.

Application filed J'ul)7 25, 1906. Serial No. 327,640.-

prove'd means for supporting the shade or attaching it to the bracket or arm from which it is suspended; to enable such attachment to be more firm and rigid, and to facilitate and lessen the labor of mounting the 'hood in position for use; to provide for this purpose a central bushing'for the shade or hood; to provide a simple and inexpensive construction, and to obtain other advanr tages and results as may be brought out in the followv ing,r description.

lteferring to the accompanying drawings, in which like numerals of reference indicate corresponding parts in each of the several'igures, Figure 1 is a central sectional view of an electric lamp provided with a hood of my improved construction; Fig. 2 is a similar section on larger scale of the bushing in which my invention more particularly inheres; Fig. 3 is a plan of said bushing and portion of the hood shown in Fig. 2, and Fig. 4 is a view of the same from beneath; Fig. 5 shows the bushing detached from the hood and having its parts separated; Fig. 6 shows a portion of the hood-body adapted to receive the bushing; and Fig. 7 is a view of the same from the under side of the hood with the top part of the bushing inserted.

In said drawings l indicates the upper or top part of a hood of any ordinary construction in general, having a lower part 2, connected thereto by catches 3, so as to be removable. These parts 1 and 2, it will be understood, are of sheet metal, the lower one being enameled white or otherwise prepared in any suitable manner to serve as a reflector, and the upper portion l being japanned or otherwise finished as is common in the art. In the said upper portion 1' of the hood, I form a central :opening or aperture 4, which is preferably circular Vwith the exception of two opposite sides being filled in to the chords of short arcs of the circumference, as

Y .i at 5, referring more particularly to Fig. 6 of the drawings. In this aperture 4, is inserted the bushing 6, which is a part of my invent-ion and which comprises `upperand lower, or male :1nd l'cmale,

parts

6 and 7 pectively. The upper one, G, of these parts 'com- 8; Said shank is furthermore" flattened at its outer threaded surface, vas 11V sai po'rtions corresponding to 4the' 'fiattenedfl the aperture in the hood. Said Ashank'lis" to be' inserted in the said opening or apertur the same without any possibility oi being turned therein, while the flange l0 lies upon the upper surface of the hood portion l, around the said aperture 4 therein.

The lower portion 7 of the bushing comprises merely a nut adapted to be screwed upon the projecting shank 8 at the inner or under sido ot theI hood, said 60 part 7 for this purpose being interiorly threaded and exteriorly providing an angular wrench receiving surface 12. It will be understood that in assembling the hood, the said parts of the bushing are screwed Ifirmly Y together, clamping the hood portion 1 firmly between 65 themselves, as clearly shown in the drawings,

The shank 8 of the bushing is interiorly bored out and threaded as at 13, and in assembling the parts of a lamp, receives a nipple 14, which usually comprises a piece of tubing threaded on its outer surface, as 70 shown in drawings. This nipple when screwed` into place is long enough to project considerably 'abovef and below the bushing, and at its lower end receives the socket 15 for a'lamp .16, the wires 17 from saidV l socket extending up through the tubular nipple.' The 75 upper or outer threaded end of the nipple 13 receives a coupling 18, and thus connection is enabled to be made to the threaded end 19, of a tubular arm, bracket or other supporting means, and through which the wires 17, are continued.

My improved construction secures a very strong and effective connection of parts and is simple and ineX- pensive so that it can be readily applied and widely used. 'Furthermore the invention enables the hood and bushings to turn as a unit, so that in screwing the 35 parts together in setting up a 1amp,''t is Vnecessary only to turn upon the outer edges of the hood or shade to turn the said bushing and rthus great convenience is secured as well as increased power from the` leverage or larger radius of the hood.

v This device is of particular utility by reason of the fact thatrits parts are adjustable, and especially so as they are adjustable by hand so that the workman may' leave the shop with the parts and put them in place at the point of use without employing any tools. That is to say, he would first screw the coupling 1S onto the support 19 (if the latter did not already have an exteriorly threaded end like the threads within the coupling), and he wouldthen adjust the nipple 14 through the kthe lamp would project the proper Vdist pe fromv'theghooLthen screw theupper o nd of th pple to'th coupling until the bushing struck ffth j Lood 'itself he could turn it and 'pas V.Ato grind the bushing ecoupling and cause it to the bushingksofthat its upper end would project suiliciently, Ythen adjust the socket 15 on the lower end of coupling, and finally by grasping 105 serve as a jam nut to prevent the nipple from unscrewing from the bushing. Throughout these steps if the threads are properly proportioned no tools are necessary; and as the only force required is in the last sheet metal body portion having an aperture therein which is circular with the exception of a flattened chordal portion,y of a bushing comprising a male portion having an exteriorly threaded shank seated in said aperture and shaped to fit the same and a female portion adapted to he screwed upon said shank to grip the edges of the body portiouof the hood around said aperture. said male portionheing internally threaded throughout its length, and an exteriorly threaded nipple adjustable through the male portion and adapted to connect with the support at its upper end and the socket at its lower end.

2. In an electric light hood, the combination with a sheet metal body portion having au aperture therein, of a bushing comprising members one of which has an exteriorly threaded shank inserted in said aperture and a flange engaging the hood, said shank and aperture being shaped and fitted to prevent relative rotation of tht` bushing and hood. the other member being adapted to screw on to the said shank and clamp the body portion of the hood between itself and the flange of the first member, an exterlorly threaded nipple screwed completely through said first-mentioned member and adapted to carry the socket at its lower end, a threaded'support, and a coupling connecting the threads of the support with those on the up per end of the nipple, said bushingr serving as a jam nut for the coupling` 3. In an electric light hood, the combination with a sheet metal body portion having an aperture therein, of a bushing comprising members one of which has an exteriorly threaded shank inserted in said aperture and a flange engaging the hood. said shank and aperture being shaped and fitted to prevent relative rotation of the bushing and hood, the other' member being adapted to screw onto the said shank and said shank being interior-ly thread ed, a supporting nipple screwed into said shank and projecting at both ends beyond the said bushing, a socket adjustably screwed onto the lower end'of the nipple, a coupling adjustably screwed onto its upper end and against the bushing which latter serves as a jam nut for the nipple, and :i support for the coupling.

4. In an electric light hood, the combination with the hood proper having spaced upper and lower parts, both having central openings and that in the former being irregular, a tubular bushing comprising two members of which one has an exteriorly threaded shank shaped to fit said irregular opening and a radial flange to rest upon the upper part and the other screws onto said shank and is adapted to chimp said part against said flange; of an exteriorly threaded nipple adjustable longitudinally through the bore of said coupling, a lamp socket adjustable on its lower end, a support, and a threaded coupling on the latter into which the upper end of said nipple is adjnstably screwed and against which the coupling serves as a iam nut.

CHARLES J'. EICHHORN.

Witnesses