US971942A - Lighting-fixture. - Google Patents

Description

I P. W. WAKEFIELD.

LIGHTING- FIXTURE. APPLIOATION FILED SBPT.7,1909.

' 97 L942;- Patented (mu 1,1910.

7H5 mmms PETERS cm, \WISHINGYON, n c.

FREDERICK W. WAKEFIELD, OF VERMILION, OHIO.

LIGHTING-FIXTURE.

errata.

Specification of Letters Patent.

Application filed September 7, 1909.

Patented Oct. at, 1910.

Serial No. 516,418.

To all whom it may concern:

Be it known that I, FREDERICK l/V. l/VAKE- FIELD, a citizen of the United States, and a resident of Vermilion, county of Erie, and State of Ohio, have invented a new and useful Improvement in Lighting-Fixtures, of which the following is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other invent ions.

My invention relates to fixtures for electric lighting. In lighting fixtures of this general class, it has been usual to provide a body which is threaded to receive the cor respondingly threaded. ends of the fixture arms. It is obvious that this method of making the arms detachable from the body is an unnecessarily expensive one, and my invention has for one of its objects a more economical manner of attaching the arms to the body.

Another object is the provision of the body in which various numbers of arms may be thus attached, so that the fixture is capable of varied arrangement.

Still another object of the invention is the provision of an improved and less expensive terminal. for the ends of the arms ilorming part of my improved fixture. It is now customary to form these terminals of turned or wrought fittings, which are obviously ex ')e.nsi.ve. By the use of the terminal herein described, the wiring of the arms may be more easily effected, while the terminal itself is much more cheaply constructed.

To the accomplishment of these and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the following claims.

The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawing :-F igure 1 is a front elevation, partly in section, and partly broken, of my improved fixture; Fig. 2 is a plan view of the bottom plate forming part of the body; Fig. 3 is a cross sectional view of the upper plate of the body; Fig. 4: is an elevational view of the body unfitted with arms; Fig. 5 is an elevational view of a plate entering into the construction of the body; Fig. 6 illustrates a terminal as applied to a modified arm; Fig. 7 is a modified form of the plate shown in Fig. 5, and Fig. 8 is a vertical longitudinal section through the end of the arm.

The body of my fixture comprises an upper plate A and a lower plate A, which are disposed horizontally and parallel with each other, and which are secured together by a plurality of screws (11.. On the under side of the upper plate is provided a plurality of depending lugs 0'," these lugs are arranged in pairs near the outer edge of the plate. These lugs are provided with horizontally extending threaded holes (7?. The upper plate is provided with a centrally disposed threaded opening a, which is adapted to be threaded on to the pipe which incloses the feed wires. The lower plate is provided with a centrally disposed opening a which is adapted to receive a pendent lamp socket. The body as herewith illustrated is square in form, but it will be readily understood that it may be of any desired shape. Laterally inclosing the body,

is a. casing which is shown as formed of four plates B. These plates may be made of any desirable metal and in any desired ornamental form. The plates B are provided with holes I) which are designed to regisler with the holes a? in the lugs a, so that they may be attached to the lugs by screws. Formed in the plates B are apertures Z) which, when the casing is secured in position, will be inclosed on two sides by the lugs a, which apertures thus register with one pair of lugs.

Adapted to have their inner ends extend through the apertures Z) and between the two plates A. and A are arms D. After the ends of the arms are so inserted, the two plates are clamped together by the screws a which extend through the inner ends of the arms and clamp the arm securely between the plates. Any desired number of arms, within the limit of the number of apertures provided in the casing, may be so inserted in thebody. If any of the apertures are desirably not used, they may be closed by the plates C which will preferably be constructcd of metal corresponding with the casing B, and of the same style of ornamentation. These plates C are formed with holes 0. hen the closing plates are placed in position on the outer side of the casing B, these holes 0 will register with the holes I) and a and suitable screws may thus attach both the plate B and the plate C to the lugs a. The outer ends of the arms D are closed by terminals (Z. These terminals are formed preferably of sheet metal of any desired ornamental style, and may be secured to the arm by solder, by screws, or other means. The drawing shows a convenient method of attaching the terminal to the arm, consisting of screwing it to the arm by a nipple having its outer end threaded to receive a lamp socket, while a small screw may if desired be used as additional means to more securely attach the plate to the arm. In Fig. l the arms shown are square, but it will be readily understood that arms of other shape may be attached to the body with equal facility, and may equally well receive the terminal. Fig. 6 illustrates a terminal attached to a round arm.

From this description the advantages of my improved construction should be obvious. The arms may be quickly attached to the body, and because they are secured thereto by the clamping plates, the body and arms may be much less expensively con structed. The body it is seen is adapted to serve as a various armed fixture, and although less than the possible number of arms may be attached to the body, the fixture still maintains a symmetrical and ornamental form. The advantages obtainable by the use of my terminal over the older forms of turned terminals, are obvious.

Instead of employing closing plates C to close unused apertures in the casing, I may employ plates G as shown in Fig. 7. The plates C are similar to plates C, except that they are provided with vertical slots 0 in stead of the holes 0. They may thus be quickly attached or detached by merely loosening the attaching screws instead of entirely removing such screws.

. Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any one of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention 1. As a new article of manufacture, a body for lighting fixtures comprising two substantially parallel plates, means for clamping the plates together, a casing laterally inclosing the plates, said casing being provided with apertures, and means for closing unused apertures.

52. As a new article of manufacture, a body for lighting fixtures comprising two substantially parallel plates, arms having casing their ends inserted between said plates, means for clamping the plates together, a casing laterally inclosing the plates, said being provided with apertures through which said arms project, and plates closing unused apertures in said casing, said casing and closing plates being attached to said parallel plates.

3. As a new article of manufacture, a body for lighting fixtures comprising two horizontal parallel plates, the upper of said plates being adapted for attachment to a stem, and the lower plate being adaped to receive a pendent socket, arms having their ends inserted between said plates, means for clamping the plates together, a casing laterally inclosing the plates, said casing being provided with apertures through which said arms extend, a plurality of pairs of lugs provided on the inner face of one of said plates, each air of said lugs lying along two sides of one of said apertures, and plates closing unused apertures in said casing, said casing and said closing plates being attached to said lugs.

a. As a new article of manufacture, a lighting fixture comprising two substantially parallel plates, arms having their ends inserted between said plates, screws adapted to clamp said plates together, a casing laterally inclosing the plates, said casing being provided with apertures from which said arms extend, and plates closing unused apertures in the casing, said casing and said closing plates being attached to said parallel plates.

5. As a new article of manufacture, a lighting fixture comprising two horizontal parallel plates, arms having their ends inserted between said plates, screws adapted to clamp said plates together, a casing laterally inclosing the plates, said casing being provided with apertures through which said arms extend, aplurality of pairs of lugs provided on the inner face of one of said plates, each pair of lugs lying along two sides of one of said apertures, sheet metal plates closing the outer ends of the arms, and plates closing unused apertures in the casing, said casing and closing plates being attached to said lugs.

6. As a new article of manufacture, a lighting fixture comprising two horizontal parallel plates, arms having their ends inserted between said plates, screws clamping said plates together and extending through said arms, a casing laterally inclosing the plates, said casing being provided with apertures through which said arms extend, a plurality of pairs of lugs provided on the inner face of one of said plates, each pair of lugs lying along two sides of one of said apertures, plates extending across the outer ends of the arms, nipples attaching the plates to the arms and threaded exteriorly of said arms, and plates closing unused. apertures inv said casing, said casing and closing plates being attached to said lugs.

7. As a new article of manufacture, a lighting fixture body, an arm attached thereto, a member closing the outer end of the arm, and means for securing said member to the arm and adapted to receive a lamp socket.

8. As a new article of manufacture, a lighting fixture body, an arm attached thereto, a member closing the outer end of the arm, and a nipple securing said member to {the arm, the nipple being threaded exteriorly of the arm.

9. As a new article of manufacture, a lighting fixture body, an arm attached thereto, a sheet metal plate extending across the outer end of the arm, and a nipple securing the plate to the arm, the nipple being threaded exteriorly of the arm.

Signed by me this 2nd day of Sept, 1909.

I FREDERICK W. WAKEFIELD.

Attested by- WV. EARLE CHiLns,

M. E. LAWLESS.

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