US533201A - pierson - Google Patents
pierson Download PDFInfo
- Publication number
- US533201A US533201A US533201DA US533201A US 533201 A US533201 A US 533201A US 533201D A US533201D A US 533201DA US 533201 A US533201 A US 533201A
- Authority
- US
- United States
- Prior art keywords
- slabs
- straps
- girders
- hangers
- series
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 101700001674 LEVI Proteins 0.000 description 4
- 239000004568 cement Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000000284 resting Effects 0.000 description 4
- 229910000754 Wrought iron Inorganic materials 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052570 clay Inorganic materials 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 229920000136 polysorbate Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/024—Sectional false floors, e.g. computer floors
- E04F15/02447—Supporting structures
- E04F15/02464—Height adjustable elements for supporting the panels or a panel-supporting framework
- E04F15/0247—Screw jacks
- E04F15/02476—Screw jacks height-adjustable from the upper side of the floor
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Description
L. s. PERSON. FIREPROOF FLOOR 0R CEILING.
(No Model.)
No. 533,201. PatentedJan. 29, 1895.
A TTOHNEY.
@einen Srnrns LEVI S. PIERSON, OF INDIANAPOLIS, INDIANA.
FIREPROOF FLOOR OR CEILING.
SPECIFICATION forming part of Letters Patent No. 533,201, dated January 29, 1895. Application led November Z8, 1894. Serial No. 530.283. (No model.)
To all whom t may concern:
Be it known that l, Lnvr S. PIERsoN, a citi- Zen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and usefnllmprovement in Fireproot Floors or Ceilings, of which the following is a specifica-tion.
My invention relates to an improvement in the construction of lire-proof floors and ceilings.
The object of my improvement is, to avoid, in that class of lire-proof floors which consist of concrete supported by iron girders, the necessity for the use of false-work to support the concrete when soft.
The accompanying drawings illustrate my invention.
Figure l represents a transverse section of looring constructed with my improvement. Fig. 2 represents a plan of the same without the concrete. Fig. 3 represents, on a larger scale, a View in perspective of one of the slabs forming the ceiling, and the means for supporting it. Fig. 4 represents a View in perspective of one of the intermediate ceiling slabs.
In the drawings, 2, 2, indicate a pair of iron girders which support a section of ilooring. Said girders are connected by a series of straps, 3, 3, formed of light bar-iron, and eX- tending across the space between thegirders.
The construction thus far is well known and common in this class of flooring, the space above and below the straps being filled with cement concrete.
I-Ieretofore, in constructing this class of lflooring, it has been necessary to erect below the connecting straps and between the girders, a false work of wood, t0 receive and support the concrete while soft. To avoid the construction of such a false work, and to form a ceiling for the room below, I form in suitable molds a series of slabs, 4, similar to that shown in Fig. 3, from cement concrete, clay, or other plastic material. The longer edges of said slabs are rabbeted as at 5, and are provided in said edges with notches, 6. Several series of slabs thus formed, arranged endto end, are suspended from the straps 3, at intervals between the girders, by means of hang ers, 7, 7. Each of said hangers is formed with a vertical portionyS, and laterally projecting arms 9, and lO, the vertical portion of the hanger entering the notch 6 inthe edge of the slab, one of the lateral arms engaging the under surface of the slab, while the other arm engages the strap. For the purpose of nicely adjusting and leveling the slabs, a wedge l1, is inserted underthat arm of each ot the hangers which engages the strap. The several series of slabs 4 having been placed in position the spaces between them are filled by a series of similar slabs, l2, shown in Fig. 4, having rabbeted portions, 13, adapted to interlock with the opposed edges of two of the series of slabs 4, thus forming a continuous surface below the straps, and suspended therefrom by the hangers 7. The space above the surface thus formed being filled with concrete in the usual manner, the concrete adheres to the slabs and forms a solid mass therewith in which the straps and the hangers depending therefrom are embedded.
I claim as my inventionl. In a fire-pro0f floor, the combination of the pair of girders, the series of straps connecting said girders, a continuous surface composed of separately molded slabs of plas tic material arranged below said straps and suspended therefrom b vsnitable hangers, and
,a mass of concrete resting upon said slabs Vand embedding said straps and hangers, substantially as set forth.
2. In a lire-proof floor, the combination of the pair ot girders, the series of straps connecting said girders, a continuous surface composed of separately molded slabs ot plastic material arranged below said straps and suspended therefrom by suitable hangers, means for adjusting said hangers vertically relatively to said straps, and a mass of concrete resting upon said slabs and embedding said straps and hangers, substantially as set forth.
3. In a fire-proof door, the combination of the pair of girders, the series of straps connecting said girders, the separately molded slabs 4, having rabbeted edges 5, and notches 6, said slabs being arranged in series and suspended at intervals from said straps be- IOO tween said girders by means of hangers surface is formed below the straps and susadapted to enter said notches and provided pended therefrom, substantially as and for with a pair of lateral arms one of which enthe purpose specified.
gages the slab and the other of which en- LEVI S. PIERSON. 5 gages the strap, and intermediate separately WVitnesses:
molded slabs 12 arranged to ll the spaces V. M. HOOD,
between said slabs 4, whereby a continuous f H. P. HOOD.
Publications (1)
Publication Number | Publication Date |
---|---|
US533201A true US533201A (en) | 1895-01-29 |
Family
ID=2601966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US533201D Expired - Lifetime US533201A (en) | pierson |
Country Status (1)
Country | Link |
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US (1) | US533201A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140144101A1 (en) * | 2012-11-23 | 2014-05-29 | Korea Institute Of Construction Technology | Method for fire-proofing composite slab using wire rope |
-
0
- US US533201D patent/US533201A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140144101A1 (en) * | 2012-11-23 | 2014-05-29 | Korea Institute Of Construction Technology | Method for fire-proofing composite slab using wire rope |
US8978340B2 (en) * | 2012-11-23 | 2015-03-17 | Korea Institute Of Construction Technology | Method for fire-proofing composite slab using wire rope |
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