US145194A - Improvement in illuminating vault-covers - Google Patents

Description

T. HYATT. Illuminating Vault-Covers. No. 145,194. u `PatentedDec..v2,1873.

Wil-NE' EEE s: Imm-na.

UNITED STATES PATENT OFFICE THADDEUS HYATT, OF NEV YORK, N. Y., ASSIGNOR TO ELIZABETH A. L.

-IIYATT, OF SAME ILACE.

IMPROVEMENT IN ILLUMINATING VAULT-COVERS.

Specification forming part ofLetters Patent No.145,194, dated December 2, 1873; application led october 22, 1873.

OASE 19.

To all whom it may concern:

Be it known that I, TI-IADDEUS HYATT, of New York, in the county of New York and in the State of New York, have invented certain vnew and useful Improvements in Pavement- Plates; and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing making a part of this speciication, in which- Figure l is a plan view of the upper side of -my improved pavement plate or tile, and Fig.

2 is a vertical section of the same upon a line passing through the center of a row of illuminating-lenses.

Letters of like name and kind refer to like parts in each of the iigures.

My invention relates to the construction of illuminating pavement plates, tiles, A&c., in which the upper or bearin g surface is made detachable; and it consists in a pavementplate which is covered upon its upper side by a sheetmetal shell, that is held in place by means of the enlarged upper ends of illuminating-lenses and nuts placed upon the lower threaded ends ofthe same, substantially as and f or the purpose hereinafter specitied.

In the annexed drawings, A represents a pavement-plate, constructed of or from metal, wood, or other suitable material, and provided with a number of light-openings, a. Upon the upper side ot the plate A is placed a sheetmetal shell, B, which, at its edges, is extended downward over the edges of said plate, and is provided with a series of light-openings, that correspond in number, size, sha-pe, and position to those of the lower plate, so as to permit of the insertion wit-hin each of an illuminating-lens, C. As seen in Fig. 2, the upper end of each lens C is enlarged horizontally, so as to give to it a bearing upon the upper side of the casing B, immediatelyT outside of the light-openings, while upon the body of said lens, near its lower end, is provided a screw-thread, c, which receives a correspondingly-threaded nut, D. As thus constructed, by screwing the nut D rmly upward against the lower side of the plate A, the lens C will be drawn downward, and its head will cause the shell D to be pressed iirmly against said plate.

It' desired, suitable bearing-buttons b may be attached to the upper side of the shell B, so as to relieve the lenses from abrasion by contact with the feet of passengers, and a sheet of rubber or other elastic material, E, may be placed between said shell and the plate A, for the purpose of lessening the sound caused by walking upon said parts. A rubber washer, F, placed beneath each lens-head, will effectually prevent the passage of water through the li ght-openin gs.

Vhen the plate A is constructed from wood, the nuts D may be made of the same material,

and condensation of moisture upon .the lower side conned to the lower surface of the lenses.

The pavement-pla-te described possesses all E required strength, is durable and cheap, and

can be constructed and placed in position in THADDEUS HYATT.

Witnesses AMBRosn MONELL, CHARLES SPYR.

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