US1353919A - Vault-light, skylight, or floor-light construction - Google Patents

Description

c. H LAW. VAULT LIGHT, SKYLIGHT, 0R FLOOR LIGHT CONSTRUCTION,

APPLICATION FILED SEPT. 27, I919. 1,353,919.

Patented Sept. 28, 1920.-

2 SHEETS-SHEET I.

c. H. LAW. VAULT LIGHT, SKYLIGHT,-0R FLOOR LIGHT CONSTRUCTION.

APPLICATION FILED SEPT. 2% 1919 I UNITED STATES, PATENT OFFICE.

CHARLES HENRY LAW, OF FOREST HILL, NEW YORK, ASSIGNOR TO AMERICAN BAB- LOGK GQMPALNY, OF NEW YORK, N. Y., A CORPORATION OF' PENNSYLVANIA.

VAULT-LIGHT, SKYLIGHT, GR FLOOR-LIGHT CONSTRUCTION.

Specification of Letters Patent.

Patented Sept. 28, 1920.

'App1icati0n filed September 27, 1919. Serial No. 326,886.

To all whom it mag concern:

Be it known that I, CHARLES HENRY LAW, a citizen of the UnitedStates, residing at Forest Hill, L. I., in" the county of Queens, State of New York,have invented a new and useful Vault-Light, Skylight,-or F loor- Light'Construction, of which the following is a specification.

It has heretofore been proposed in the patent to Mulford, No. 1,021,548, dated March 26th, 1912, and in, the patent to Mulford, No. 1,072,147, dated Sept. 2, 1913, in constructing devices of this character, to first make a preformed slab of reinforced concrete, place it over the opening to' be covered, then place in position the lenses, and lastly embedding the lenses in concrete. The advantages and utility of such construction is clearly set forth in the patents aforesaid, and such construction has been found to have marked advantage over the prior methods employed.

My present invention comprehends a novel construction and arrangement of a skylight,-vaultlight and floor-light construction of the same type as the patents above referred to and is formed of a preformed slab of reinforced concrete having lens receiving openings. The slab 1 is completed at the factory and then shipped to its desti nation, at which place it is placed in posi tion over the openingv to be covered. The lenses are secured in position over the lens receiving opening, and an upper layer of concreteis formed to embed the lenses and a novel construction andarrangement of reinforcing members, which latter are of truss formation, and extend above the preformed slab, in order to serve also as bonding or anchoring elements in the finished construction. A. stronger and better reinforcement is provided and a better bond between the different layersof concrete which are united as a homogeneous mass after the operation is completed.

My invention further comprehends a novel construction of an expansion joint formed between sectional portions of the construction. 1

It further comprehends a novel construction. of a skylight, vaultlight and floor light wherein any lenses which have. become broken or injured may be readily removed 'structionwithout injury tothe surrounding body of reinforced concrete.

Other novel features of advantage and construction will hereinafter more clearly appear in the detailed description of the in: vention and the appended claims.

For the purpose of illustrating my invention, I have shown in the accompanying drawings, forms thereof which are at present preferred by me, since they will give in practice satisfactory and reliable results. It is to be understood, however, that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

Figure 1 represents in perspective, a preformed slab of reinforced concrete having lens-receiving openings, and forming part of the skylight, vaultlight and fioor-light embodying my invention.

Fig. 2 represents a sectional view, showin more clearly the expansion joint.

Fig. 3 represents, in section, a portion of the construction, showing a replaceable lens in position.

Fig. 4 represents, in section, a skylight, vaultlight and floor light embodying my invention.

Fig. 5 represents, in sectional elevation,

a portion of the construction showing more the construction.

Similar numerals of reference indicate corresponding parts in the figures.

Referring to the drawings 1 designates a pre-formed slab of reinforced concrete which is provided with lens receiving openings 2. Embedded in the concreteof the slab on opposite sides of the openings 2, are met-a1 reinforcements which consist of the lower deformed rods 3, the

upper deformed rods 1, which latter are in truss formation and extend above the surface of the reinforced concrete slab as indicated at 5 in order'to-also serve as bon ing elements. V 7 I also employ onopposlte sides ofthe lens receiving openings, reinforcing rods 6 which outmy invention in practice,as a reinforced concrete skylight construction for a-train' shed roof,- .i'n which 7 designates the bulb angles on which the old concretef8 is supported. 'Securedto the angles 7 in any desired manner are the angle beams 9 having their upper laterally extending flanges 10 forming asupport for the preformed con- :crete slab 1, seen in Fig. 1, and the detailed construction of which has already been ex- .plained. The ends of the preformed slab 1 are placed in proper position over the open- I ing to be covered and rest on the insulation 11, which may be of any suitable material, suchas for example, felt. The lower'angle beam 9 is secured to it in any desired manner on angle beam 12, the function -o.f which is -toiprevent anyslipping of the skylight slab.

This angle beam 12 extends preferably in parallel relation with and is spaced from the preformed slab 1. The lenses 13 are next placed inzposition over the lens receiving openings 2.-'-Th ese lenses have the upper portion of their side walls unobstructed and" converging asindicated at '14, and these converging walls at their lower ends merge into a curved or rounded bead 15 which latter nie'rgesinto an outwardly extending flange 16 which rests on the upper face of the preformed slab l. The lenses are provided at their bottom with the downward extensions 17, which are adapted to fit into the lens receiving openings J Y The downwardly converging side walls 14 of a lens, are provided with a malleable coating 18. After the lenses have been placed in position, concrete 19 is poured on to surround the lenses and embed the bonding portions'5 of the truss reinforcing bars 4. Between the upper face of the. old concrete 8 and the new concrete 19, an elastic cement joint 20 is formed preferably of angle formation, as is shown in Figs. 4C and 5. Between the old concrete 8 and the new concrete 19 atthe upper end of the construction, a wedge shaped slot 21 is formed, in the lower portion of which is packed oakum 22 or-material of similar properties, 1

andthe slot above the oakum is filled with elastic'cement 23 in order to form 'an expansion joint.

' The-new concrete slab 24: on the concourse roof as well as the skylight construction is supported on a structural beam 25, see Fig. 2, and between the slab 24 and the skylight construction, an expansion jolnt 26 is formed corresponding in construction to that seen at the upper end of the construction in Fig; 4, and a detailed description of the expansion .joint '26 would involve needless repetition.

as irrdicated at 28, while itscentral. portion 7 is deflected downwardlyas at 29, to extend betweenthe space formed by the juxtaposed slabs 1. A .slothaving downwardlyconverging walls 30 terminating at the central 2 portion of the expansion plate is formed in the upper layer of concrete, and this. slot is filled with elastic cement 31.130 form an expansion joint. 1 In Fig. 3, I'have shown a type lens 32 which has replaced a brokenlens 12. The replaceable lens 32 is less in width than a .lens 12 and is similar'in construction, except that instead of having an outwardly curved wall portion forming a bead as .1 1, it isprovided with a semi-cylindric groove 33, and the concrete opposite the groove 33 is removed to form a groove 34, semi-cylindric in cross section so that the cement placed in said. grooves Will form a water tight cement lockjoint 352 which extends to the upper face of the preformed slab 1, as indicated at 36. 7

When I have referred to concrete, it is to be understood that this includes any cemeninstance, shown and described a preferred embodiment thereof which will give in practice satisfactory and reliable'results, it is to be understoodQthat such embodimentis susceptible of 'modificationin various particulars'without departing from the spirit or scope of the invention or sacrificing any of its advantages; 1 1

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A skylight, vault .light, or floor light construction comprising a concrete slab having lens receiving-openings and having embedded 1n 1t on opposite sides of the openings, a longitudinallyv extending upper and a lower bar, the upper bar being in truss and positioned above them, lenses covering the lens receiving openings, and a layer of concrete surrounding the lenses and embedding the bonding portions of the truss-reinforcing bars.

2. In a skylight, vault light or floor light construction, having old concrete bearings, the combination With the old concrete and its bearings, of a concrete slab having lensreceiving openings and having embedded in it reinforcing bars of truss formation extending between adjacent openings above the slab to form truss bonding portions,

lenses covering the openings, an angle beam spaced from the slab and carried by the bearings to prevent slipping of the slab and concrete embedding the angle beam, the

truss bonding portions and surrounding the lenses.

3. A skylight, vault light, or floor light construction comprising a concrete slab having lens receiving openings and having embedded in it on opposite sides of the openings, a. longitudinally extending upper and a lower bar, the upper bar being in truss formation so that it has truss portions extending above the face of the slab to form bonding portions reinforcing bars embedded in the slab, extending at an angle to the other reinforcing bars and positioned above them, lenses covering the lens receiving openings, and a layerof concrete surrounding the lensessand embedding the bonding portions of the truss-reinforcing bars.

CHARLES HENRY LAW.

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