US962055A - Electric fixture. - Google Patents

Description

G. P. RUSH.

ELECTRIC FIXTURE.

APPLICATION FILED 8111112.15, 1909.

962,055. -Pmted .mn21,191o.

G. F. RUSH.

ELEGTRIG FIXTURE.

APPLIQATION HLM) SEPT. 15. 1909.

962,055. Patented June 21, 1910.

2 SHEETS-SHEET 2.

ff/ Mur/601 UNITED STATES Y GEORGE FREDERICK RUSH, 0F CHICAGO, ILLINOIS.

ELECTRIC Specication of FIXTURE.

Letters Patent Patented June 2l 1910.

Application filed September 15, 1909. Serial No. 517,871.

'1b all whom it may concern:

Be it known that I, Gnome Fnnmnuok .li-Usn, a citizen of the United States, residing at Chicago, in the county of Cook and State of lllinois, have invented a certain new and useful Improvement in Electric Fixtures, of which the following is a specifcation.

This invention relates to electric fixtures and is in some ways an improvement or a modification of that of my prior application, Serial No. 494,966, filed May 10, 1909.

The object of the invention is to provide an electric fixture, preferably of porcelain or other similar material, presenting a pleasing and useful surface to the room in which it 1s located in which the electric light bulbs are attached thereto and protected and insulated by the fewest possible number of parts, and in which the parts are secured together in a very rigid and satisfactory manner but so that they may be separated and detached for repair and the like.

The invention consists in mechanism for carrying out the foregoing invention which can be easily and cheaply made and assembled, thereby insuring satisfactory operation and doing away with a large number of parts heretofore used.

It also consists in more specific details of construction which will be hereafter more fully described and claimed as the specification proceeds.

Referring to the drawings, Figure 1 is a vertical sectional side view of one of'the forms of device illustrating this invention. Fig. 2 is a horizontal plan view taken on the line 2-2 of Fig. 1. Fig. 3 is a perspective detail view of one of the contact members. Fig. 4 is a vertical sectional detail View of the preferred form of construction. Fig. 5 is a plan view on the line 5-5 of Fig. 4. Fig. 6 is a perspective detail view of one of the contact members. Fig. 7 is a perspective view showing the referred fixture of Fig. 4 applied to the wa of a room.

In the form of this invention shown in Fig. 1, as in the above mentioned prior application, the portion exposed to the room consists essentially of a flat plate member 10 of porcelain or other similar material securedv directly to the wall proper 12 by means of the screws 14 or other suitable devices. The front face 16 of this Xture may be washed and decorated with calcimine said prior application, and the electric light bulb proper enters a dome 18 or other inclosing device but this dome is not, as in the prior application, made integral with the front plate 10 but is, instead, attached thereto by means of the metallic straps 20 having one end bent through the'opening 24 and around the portions 26 of the dome 18, thereby doing away with the necessity for the use of rivets, screws and the like. The opposite ends 28 of these members 20 lie between the front plate 10 and the wall 12 and are pierced by the screws 14 whereby the one set of screws 14 serves to hold the dome 18 in substantially as rigid contact with the member 10 as though the dome and the member 10 were made integral. This making the dome separable has advantage over the construction of the prior application in that a larger dome may be used containing lnore electric devices Without marring the front of the plate- 10 and that such electric devices can be more readily installed within the dome than in the structure illustrated in said prior application. The face plate or member 10 heretofore described has in it a circular perforation for the contact end 30 upon the electric light bulb 32, as shown, said perforation or hole having its outer portion flaring in the angular' surface 34 and its inner portion 36 straight, as shown. In this opening there is placed a metallic member 38 having its upper portion screw threaded, as shown, and its lower portion bent into the outwardly flaring flange 40 registering with the inclined face 34 in the front plate 10 heretofore described. Threaded upon the upper screw threaded portion of this metallic member 38 is a wrench like member 42 having an arm 44 extending therefrom. From the foregoing it will readily be seen that by first inserting the member 38 in the above described opening in the member l0 and then threading the Wrench member 42 thereon and using the member 44 as a wrench handle, if desired, the flaring portions 40 in the member 38 can be brought into very close contact with the inclined face 34 of the plate member 10, whereby the metallic member 38 is securely locked in working position in said plate. /Vhen this adjustment has been made or rather as it is completed the member 44 is Figs. 1 and 2, where it readily contacts with or the like, as in the case of the fixture of the contact block 46 of an ordinary com'- brought around to the position shown in mercalswitch comprising a shaft 48,- the yoke 50, the spring contact 52, mounted within the dome 18, said shaft 48 and consequently the switch being rotatable by use of the handle 54 mounted upon the outside of the front plate 1() in the ordinary manner so that rotating this handle makes and breaks contact between the members 44 and 46, thereby controlling' the passage of electricity which entersA the switch device through wires, not shown, attached by the screw contact 56 to the exterior contact portion 30 of the lamp 32. In line With the central` axis of the lamp 32 is a central contact member consisting of the plate 58, a U shaped member 60 and a tubular member G2 extending therefrom into the dome 18 proper Where it is secured in position by the bolt 64 and the nut 66, as best seen in Fig. 1. At the turn ot` this U shaped Inem ber 60 is the contact member 68 located near the adjacent opening 24 in the dome so that a wire may be inserted and attached by means of the screw 69 to this member, thereby admitting electric current to the plate 58 and thence to` the central contact 70 of the lamp 32. This member just described and illustrated fully in Fig. 3 is made from one piece of metal, the member 62 having ay slot 72 along one vertical side, said slot being formed by the adjacent edges of the original llat piece of metal brought in contact with each other as the member 62 is bent up and the plate 58 is formed by having its flange 74 bent downward, as shown.

In the preferred form of construction shown in Fig. 4 the front plate 76 is provided, having inserted through an opening therein a threaded metallic member 78, having the flaring flange 8() engaging the `inclined face 82 of the front plate 76 exactly as in the form of Fig. 1. Instead of using the wrench member 42 as a tightening device the dome 84 itself so acts and is screw threaded, as shown, at 86 upon the upper portion of the member 78, the member 78 being locked in contact with the member 76 by rotating the dome 84. The dome 84 is provided With side perforations 88, as shown, through which electric Wires, not shown, are adapted y to be passed to the screws 90 and 92 entering respectively the conducting members 94 and 96. Themember 94 is rigidly connected by any suitable means to the screw threaded member 78 with which the exterior contact portion 99 of the lamp 100 contacts. The member J6 is bent into the llat portion 102 and the tubular portion 104 through which the current is carried by the screw 106 insulated by the lava or other insulating thimble 108 from the bolt 110, whichin turn directly contacts with the central contact member 112 of the lamp. The result of this preferred form of construction is that by the aid of a very small number of parts the dome while separable is readily attached to the front plate 76, While the dome positively secures to the front plate a metallic member 78 in which the lamp is directly mounted. The connector illustrated in I `ig.v8 may also be substituted inside the dome of Fig. 4 and is preferably so used to lessen the number of parts.

rlhe claims are l. In adevice of the class described, the combination of a front member of insulating material adapted to be exposed to the room having an opening therethrough for an electric lamp, a lining member of corresponding shape inserted in said opening, there being an enlargement upon the outer end of said lining member which prevents its passing entirely through the front member, and a dome of insulating material held upon the rear of the front member by locking engage! ment With the lining member, there being space Within the dome for electric connee.

tions for a lamp which may be inserted through the opening in the front plate member.

2. In a device of the character described, a front member adapted to be exposed to the room havin an opening therethrough for an electric amp, said opening flaring toward the room side of the first mentioned member, a lining member of corres ending shape inserted in said opening, a ome of insulating material upon the rear of the first mentioned member screw threaded upon the lining member to lock it in position and means Within the dome for conveying electric current to and from a lamp inserted in the opening in the rst mentioned member.

In witness whereof, I have hereunto subscribed my name in the presence of tWo Witnesses.

GEORGE FREDERICK RUSH.

Witnesses:

DWIGHT B. CHEEVER, MARGARET D. RoBB.

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