US1746339A - Inclosed lighting fixture - Google Patents

Description

Feb. 11, 1930. L. c. DOANE v 1,746,339

INCLOSED LIGHTING FIXTURE Filed July 20, 1927 "x 34 qlilllllllllllllllllllllm i III,

INVENTOR Zenzy C 30412:

. [Ag ATTORNEY Patented Feb. 11, 1930 UNITED STATES PATENT QFFICE LEROY C. DOANE, OFMERIDEN, CONNECTICUT, ASSIGNOR ro TH-E MILLER COMPANY,

or MERIDEN, CONNECTICUT, A oonronnrron or CONNECTICUT INCLOSEID LIGHTING FIXTURE Application fi led July 20,

carried by thebus ceiling or other supporting structure. Thelamp socket is permanently supported by the shade holder and the shade holder, is, according to the present invention,

provided with an arrangement. of lugs adapted to cooperate with a suitable shade supporting ring so that the shade withring attached to it may be;quickly and easily mounted in the shade support.

An object of the present invention is to providea metal supporting ring which is non-rotatably carried by the glass shade in such a way that the ring and shade may be handled as a unit in attaching the unit to the supporting shade holder.

"Another object of the invention is to provide a small inclosed shade of diffusing glassg ware of such shape that light may be directed walls as,"

onto the busceiling and upper side well as downwardly. t Other and further objects of the invention will appear as the description proceeds.

The accompanying drawings show, for'purposes of illustration, one of the many possible embodiments in which the present invention may take form, it being understood that the drawings are illustrative of the invention rather than limiting the same. In these drawings: i Figure 1 is a sectional View of an inclosed lighting unit, parts being shown in elevation; Figure 2 is a to ilplan view of the shade or globe and shade olcling ring, parts being shown in section approximately on the line 22 of Figure 1; and

ings forming the shade holding ring.

A support, such as the ceiling of a bus, s

indicated at 10. A metal shade support 11 is mounted in a suitable hole or opening ina 1927. Serial No. 207,086.

bus ceiling being supported in place by screws 12. A lamp socket 13 of the type ordinarily 'used in automotive electrical equipment is supported in the shade support 11 by means of a strap 14 which is fastened to the shade support by screws 15. Thesescrews also support arcuate springs 16 and 17. The

shade support 11 is open from underneath and the interior of the shade support is provided at the lower end with sloping shoulders indicated indotted lines at 18 and with suitable recesses or dwells 19 to receive lugs carried on the shade holding ring.

A shade 20 preferably made of diffusing glass has, as here shown, a curved bottom 21, conical side walls 22 and inwardly flaring upper walls 23. Theupper walls 23 terminatein a short tubular neck 2 1. This neck is approximately cylindrical but is, as here shown, provided with indentations 25, 26, 27

and 28.

An upper shade holder ring 29 is shown more 111 deta1l1n Flgure The rlng has four inwardly bent lugs or prongs 30, 31, 32 and 33 adapted to fit into the indentations 25, 26,

,27 and. 28,011 the glass shade so as to prevent relative rotation of the shade and ring. The shade ring 29 is also provided with a downwardly directed internally threaded central portion 32 spaced sulficiently from the outer wall or skirt 33so as to pass down inside the neck 24; of the glass shade. A. locking ring 3% shown-morein detailin Figure 4 is provided with an upwardly drawn threaded portion 35 adapted to cooperate with the threads 32 on the locking ring 29. The look ing ring has cut awaysides indicated at 36 and 37 to permit passing it downwardly through the opening in the glass shade. The

flanges 38 and39 of the locking ring are I adapted to engage underneath the glass shade as indicated more clearly at the left of Figure 1; To facilitate assembling the "two rings the lockingring 34Lis provided with t i r a number ofinwardly bent prongs 40 which Figure 3 is a perspective View of two stamp- ,parts together and securely fastening the globe between two rings; Theglobe and two into the recessby the springs 16 and 17 above referred to.v

This form of bus lightin unit is well suited with large size lamp bulbs and yet is capable of being mounted very close to the ceiling with the attendant advantages. By

1 making the shade out of diffusing glass soft even li ht is sent out in all directions and the CElhD 'Z and upper side walls of the bus are lighted instead of being dark. The shade may be, readily'reinovedfor inspection, cleaning and replacementof lamps.

I claim:

1. An inclosed lighting. unit comprising a glass globe closed at the bottom and haviing a neckat the upper end, a threaded ring outwardly flanged at its lower end, the ring heinginsertable through the neck of the globeto brin the flange underneath a portion of the globe, a. coverring having an outer por tion which passes down outside the neck of the globe anda second threaded portion cooperative with the threaded ring for clamphaving a narrow neck. or ople ing the globe betweenthe rings, the outer portion of'the cover ring and the neck of the globe being non-circular to prevent" relative rotation.

2. An inclosed lighting unit comprising a glass .globeclosed at the bottom and having a neck at the upper end, a threaded ringoutwardly flanged at its lower end, thering being insertable through the neck of. the

globe to bring the flange underneath a por 5. A holder for inclosed globes, said holder comprising two rings threaded together, one ring having an outwardly extending flange at its lower end while the other ring has an outwardly extending flange at its upper end and askirt extending downwardly from the flange, said skirt having inwardly struck prongs for non-rotatably engaging a shade.

6. A holder for inclosed; globes, said holder comprising two:- rings threaded together, one ring having an outwardly extending flange at its lower end while the other ring has an outwardly extending flange at its upper end and a skirt extending downwardly from the flange, said skirt having inwardly struck prongs for non-rotatably engaging a shade and outwardly struck prongs to engage a shade support.

71 A bus light comprising an. automotive lamp socket, a lamp bulb. in the socket, a shade support about the lamp socket, a glass shade closed at the bottom and having a narrow neck at the top, and a pair of metalshade holding rings threaded together and non rotatably clamped to the neck of the glass shadeso that the shade and rings become a permanent subassembly, the outer' ring being coperative with the shade support for removably carrying the-shade from the shade support, the holein the rings being slightly larger than the. bulb to permit removal of the shade and ringsfrom the-shadesupport.

Signed at Meriden, in the county of New Havenv and State of Connecticut, this 16th day of'July, 1927.

LEROY C. DOANE.

tion of the globe, a cover ring'havin'g an outer portion which passes down outside the neck of the globe and a second threaded portion cooperative withthethreaded ring for clamping the globe between the rings, the

outer portion of the cover ring and the neck of the globe being non-circular to prevent relative rotation, the threaded portion of the first mentioned ring, having inwardly bent tool engaging prongs to facilitat threading the two rings together.

3..A glass globe for inclosed bus lights, comprising a substantially closed glass bowl having a narrow neck oropeningqat the to said neck having uniformly straight si e walls and being of non-circularconfiguration. 4'. A glassv globe for in'closedfbuslights comprising a substantially closed glass bowl ning at the to j, said neck having st raig t side walls, said side walls having pockets or"recesses extendin in the directlon' oi the axis of the @obe; for receiving prongs on a cover. ring orthe like;

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