US741593A - Ceiling construction. - Google Patents

Description

I No. 741,593. PATENTED OCT-13,1903.

' W. DA. RYAN & L. L. SAGENDORPH.

CEILING CONSTRUCTION.

APPLICATION FILED JAIL 19, 1903.

N0 MODEL.

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No 741,593. PATEN'TED ocT. 13,1903

w. DA. RYAN & L. L. SAGBNDORPH,"

CEILING CONSTRUCTION.

APPLICATION FILED 'JAN.19. 1903.

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UN TED STATES Patented October 13, 1903; I

PAT NT OFFICE.

WALTER DA. RYAN, OF LYNN, MASSACHUSETTS, AND LONGLEY L. SAGEN- DORPH, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNORS OF ONE-THIRD TO I-IARLAN P. LLOYD, OF CINCINNATI, OHIO.

CEILING CONSTRUCTION.

SPECIFICATION forming part of Letters Patent No. 741,593, dated October 13, 1903.

Application filed January 19, 1903. Serial No. 139,644. (No model.)

IO ()ur invention consists in certainimprovements in the detail construction of metallic ceilings, having for its object the provision of means whereby the curved metallic plates comprising the reflecting-surface for a lamp r may be made to join rectangular ceiling-plates of any or" the standard constructions at present known to the art, a further object being to provide a construction such that the fitting of standard ceiling-plates to such curved pieces may be quickly and easily accomplished and that without the necessity for or use of unsightly joints.

ing had to the accompanying drawings, in which- Figure l is an inverted plan view illustrat-' ing a section of a metallic ceiling and showing our improved construction by which standard ceiling-plates of varying sizes may 0 be fitted to a circular metallic reflecting-section. Fig. 2 represents aninverted plan view of a special form of section, showing the applicability of our improved construction thereto; and Fig. 3 is an enlarged sectional 5 elevation taken on the line 3 3, Fig.1, illustrating the detail construction of a ceilingsection made according to our invention.

In the above drawings, A represents a reflecting ceiling-section, which in the case 40 illustrated is made in two parts,of which one,

a, consists of a substantially conical surface provided with a number of annular projections or corrugations of increasing amplitude from the. apex of said surface to its base,

while thesecond part, a, of'said surface is concave in form and extendsdownwardlyand outwardly from the base of said conical surface. Any desired source of light is placed in the line of the vertical axis of the surface These objects we attain as hereinafter set forth, reference bea and adjacent to its apex, this source being in the device illustrated an electric-arc lamp of the inclosed-arc type.

In order that the above device may have a sightly appearance and may at the same time be conveniently united to standard rectangular metallic ceiling-plates, we unite to the lower edge of the surface a an upwardly-extending annular portion a which as it approaches the level of the ceiling is provided with one or more annular flanges a having grooves a r The ceilingrepresented at B has in the case illustrateda series of 'furring-strips', of which one is shown at b, and to these the reflecting structure as well as the metallic ceiling-plates are fastened in any desired manner," being thereby retained in position.

7 By reference to Fig. 1 it will be seen that we provide four sections or pieces O, designed to surround the reflecting-section'A, forming together a figure whose external configurathere being also, as above noted, corresponding recesses or grooves of in one of the flanges 8o projecting from the annular portion (1 of the reflecting-surface. It will be seen, therefore, that by the useof the sections 0 the curved section A, which may be made, as shown in Figs. 1 and 2, either circular or elliptical in outline, is extended so that angular ceilingplates D, which in the case illustrated are four-sided and of various sizes, may be united therewith to form a regular and sightly construction of ceiling, the grooved or recessed o portions d of said ceiling-plates fitting into the correspondingly-formed recessed portions 0 of the junction-pieces O and .these inturn uniting with the grooved flanges of the curved reflecting-section. 9 5

We claim as our invention- 3 1. The combination of a series of ceilingplates, with a light-reflecting section, said section forming a portion of the ceiling and being joined to said plates, substantially as described.

2. The combination of a series of ceilingplates, with a section placed to be substantially continuous therewith, said section having a light-reflecting portion, substantially as described.

3. The combination of a series of ceilingplates, a curved reflecting ceiling-section and junction-plates uniting the ceiling-plates with said reflecting-section, substantially as described.

4. The combination of a reflecting ceilingsection having a curved outline, and a series of junction-sections of a construction to fit the ceiling-section, said junction-sections being of an angular exterior configuration, with aseries of ceiling-plates constructed to unite with said junction-sections, substantially as described.

5. The combination of a ceiling-section having a curved outline, said section having a grooved flange surrounding the same, a series of junction-sections having portions designed to fit said grooves of the curved section and to form together a figure of angular out1ine,and ceilingplates also having grooved portions and designed to unite with said junction-sections to form a complete ceiling, substantially as described.

6. The combination of a light-reflecting ceiling-section of curved outline, an annular flanged portion surrounding the same, said flanged portion being grooved, a series of junction sections having grooved portions designed to fit the grooved portion of the curved section, said junction-sections completely surrounding the curved section and being rectangular in outline, with a series of ceiling-plates grooved along their edges and designed to be united to the correspondinglygrooved portions of said junction-sections, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

WALTER DA. RYAN. LONGLEY L. SAGENDORPIT. \Vitnesses:

WILLIAM E. BRADLEY, J os. 11. KLEIN.

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