USRE9534E - hyatt - Google Patents

Description

3 Sheets-Sheet l. T. HYATT,

v Assignor to E. A: L. HYAM.

Mode of Covering, Lighting, and Ventilating Areas, Vaults, and similar Underground Spaces;

No; 9,534; Reissuedlan, 11,1881.

2) 0 0 O OO O O0 INVENTDR rm: NGRRIS parses ca. wash/N570, 04 c v a Sheets-Shet 2. T. H Y A T T Asslgnor to E. A. L. Hu'r'r.

Mode of Covering, Lighting, and Ventilating Areas, I Vau and similar Underground Spaces. No. 9,53 Reis sued Jan. 11,1881.

INVENTDR:

WIITNES I Q r ii a snet -sn et a. v 4 T. ATT,

Assignor A. L.

Hum. Mode of Cove Lighting, and Ventilating Areas,

V ts, similar Underground. Spaces. 7 NO. '9, 4. Rei ssuedJan, 11,!881.

INVENTORY:

UNITED STATES THADDEUS HYATT, OF NEW YORK, N. ASSIGNOR TO ELIZABETH A. L.

HYATT, OF SAME PLACE.

MODEDF COVERING, LIGHTING, AND VENTILATING AREAS, VAU LTS, AND SIMILAR UNDERGROUND SPACES.

SI ECIFIGATIONI forming part of Reissued Letters Patent No. 9,534, dated January 11, 1881.

Original No. 2206, '11, dated July 30, 1878. Application for reissue filed December 21, 1880. Patented in England October 2, 1869.

To all whom it may concern: 7

Be it known that I, Tnnnnnus, HYATT, of the city, county, and State of New York, am the inventorof an Improved Mode of Covering, Lighting, and Ventilating Areas, Vaults, and Similar Underground Spaces, applicable also as a footway, which invention was patented by me in England on the 2d day of October, 1869, No. 2,869, of which the following is a specification.

The English patent aforesaid describes a beam-platform or area-covering composed of a foundation or cast-iron frame made to receive panels or plates of iron,,'with an asphalted surface, these plates not only beingasp'halted,

but also the face of the iron frame containing them, especially when the external portions or borders of the frame were designed to form a. coping in place of stone. 7

The object of the asphalt, as explained in the text, is toprevent slipping, and two kinds of asphalt are mentioned-via, natural and artificial-natural asphalt, as is well known, being a bituminous concrete, or limestone in filtrated-with bitumen, and artificial asphalt being any combination of tar or bituminous materials with sand, gravel, and the like, the latter being adapted to an iron surface moderately rough, or even smooth, according to the thickness of the material, and the former being adapted only to a surface formed. to give or produce side adhesion or support upon lines vertical to the face ofthe iron plate-such, for example, as would be formed by casting the face of the plate in the form of .cells of hexagon or other shape.

The face of the metal construction when made to be asphalted is described as thus made: The iron plates or panels, combined with the metal frame to form the area-coverin g, are described as of three kinds-one where the apertures are set with glass, another where they I are left open to let in air, and a third which platform; D, the cast-iron frame.

Plate 2 has air-holes instead of glasses.

is solid.

Figure Irepresents an area-coveriiigor beam- 1 2 3 are the panels, 1 being a glazed plate or set with glasses, a a being the glasses or bulls-eyes' 1s a solid iron plate. represents asphalt.

Fig. II represents a portion of panel 1, and is designed to show the cellular construction of the-face of the metal, as described in the English patent. The light-holes k It, made through the plate, are made with no reference to getting the center of each glass E exactly The portion shadedby dots at the center of any particular cell or cluster of cells, inasmuch as the cells do not appear on the surface, being covered up by the asphalt, the purpose of the cellular face being to produce a large superficial area or surface for the .asphalt to cling to. For this reason, also, the

ce1ls, of preference, are madesmaller than the.

glasses E, so that the light-hole cuts into a cluster of cells. Each cluster of cells, as shown, represents a hexagon cell as large as the combined cells that form the cluster, and each cluster is more or less perfect, accordingto the extent that one'cluster cuts into an0ther;;but

,this makes no difference as to the object of the cells.

Where preferred, the glasses may be so arranged as to bring the center of each glass exactly-at the center of the cluster of cells through which the light-hole is made, which light-holes are indicated by the dotted circles in k.

Fig. III is a cross-section of 2 on the line 2 z. The asphalt (shown by-the dots) covers the cells 0 c 0, so that no part of the metal sides thereof appears at the top, the only metal of I the surface, between the years 185054. The

invention consisted in anew mode of fixing. glasses in gratings or perforatedplates by the aid of a bituminous bond, the bituminous substances employed, as mentioned, being as phaltuin properly modified by coal-tar, coaltar mixed with sulphur, also coat-tar mixed with sulphur and sand,'0r sulphur and marhie-dust. The caveat also reads as follows,

viz A. further object I have in View is thisviz., to expose as large a surface as possible of this asphaltic bond between the glasses and even with their surfaces, so as to make a more tractionable surface to the foot than iron, (when used as illuminating-flagging,) and consequently less liable to he slipped on in walk- 'ing.

Having thus fully described and illustrated my invention, what I claim, and desire to secure by Letters Patent, isv t 1. Illurnin atingegratings or perforated metal plates set with glasses by means of an asphalt or equivalent bond put about the glasses, in

' fluid or plastic state, which on "setting and hardening not only confines the glasses to the grating or plate and forms a water-tight joint around each glass, but also at the same time produces between'- the glasses a non-slipping or safe-walking foot-surface, substantially as and for the purposes herein set forth, and illustrated by my drawings.

2. Illuminatin g-gratin gs orperforated metal plates set with glasses sunk within the body of the metal as to their lower sections and therein held by means of suitable cementor" material, in combination with a body of asphalt or equivalent foot-holding substance put upon the grating or plate in the spaces between the upper sections of the glasses in afluid or plastic state, substantially as and for the purposes herein set forth, and illustrated-by my drawings.

3. Illuminatin g-gratin gs or perforated metal plates formed with a retaining cellular or recessed face, combined with glasses and an asphalt or equivalent toot-holding filling, substantially as and for the purposes herein set forth, and illustrated by mydrawings.

v THADDEUS HYATT.

Witnesses GEO. M, LOOKWOOD, A. Moons.

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