US146350A - Improvement in beams and rafters - Google Patents
Improvement in beams and rafters Download PDFInfo
- Publication number
- US146350A US146350A US146350DA US146350A US 146350 A US146350 A US 146350A US 146350D A US146350D A US 146350DA US 146350 A US146350 A US 146350A
- Authority
- US
- United States
- Prior art keywords
- beams
- rafters
- improvement
- sides
- rafter
- 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 2
- 230000001154 acute effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
Definitions
- Theobject of my invention is to provide a beam or rafter to be used in the construction of. buildings which "will be fire-proof, and at t-he same time cheaper, lighter, and stronger than those heretofore used.
- the two sides A A of the beam or rafter may be made either of metal or wood, and are placed together in such a manner that a triangle is formed in an acute angle, leaving one side open; or, if metal is used, the two sides may be made in one piece and bent into that shape.
- a bar or tube, B is placed in the inl terior of thistriangle, about the center, but a little nearer to the open side or base, and is held in position by the cross-supports C C.
- the interior of the triangle may be filled with mortar or cement, which, when it hardens, will be held in place by the base or open side, and, the acute point of the triangle being upward, the brick arches or other material which forms the ceiling and ooring will rest againstthe inclined sides A A, and be wedged in between the rafters, and the iron or wooden sides of the beam, being entirely covered, are thereby protected from re. l
- the principal use of the bar or tubeB is to hold the filling ofccment in place in the beam 5 and when it is desired to use the beam open and Without the filling, the supports C C being fastened to the sides AA, the tube B may be entirely dispensed with.
- a beam or rafter composed of the sides AA and supports C C, substantially as shown and described.
- a beam or rafter having sides A Aaud supports C G, in combination with a tube or bar, B, and lled with cement or other analogous substance, substantially as and for the purpose shown and described.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Description
n. c. ruim-:KL`
Beams and Rafters.
`N0 146 350, Patentedlan.l3,!87`4.
UNITED STATES HEBMAN-C.LUEDEKE, OF NEW YORK, N. Y.
IMPROVEMENT IN BEAMS AND RAFTRS.
Speciicatlon'forming part of Letters Patent No.'l416,350, dated January 13, 1874; application led November 24, 1873.
To all whom it muy concern:
Beit known that I, HERMAN C. LUEDEKE, of the city, county, and State of New York, have invented certain Improvements in Beams and Bafters, of which the following is a specication:
Theobject of my invention is to provide a beam or rafter to be used in the construction of. buildings which "will be fire-proof, and at t-he same time cheaper, lighter, and stronger than those heretofore used.
In order to describe my invention more fully, I will refer to the accompanying drawing forming a part of this specification, in which- Figure l is a side View of my improved beam or rafter. Fig. 2 is a longitudinal section' throu-gh the center of the same, and Fig. 3 is an end View. l
The two sides A A of the beam or rafter may be made either of metal or wood, and are placed together in such a manner that a triangle is formed in an acute angle, leaving one side open; or, if metal is used, the two sides may be made in one piece and bent into that shape. A bar or tube, B, is placed in the inl terior of thistriangle, about the center, but a little nearer to the open side or base, and is held in position by the cross-supports C C.
If it is desired, the interior of the triangle may be filled with mortar or cement, which, when it hardens, will be held in place by the When my improved beam is used in the construction of buildings and for other purposes, the base or open side is placed downward, and, the acute point of the triangle being upward, the brick arches or other material which forms the ceiling and ooring will rest againstthe inclined sides A A, and be wedged in between the rafters, and the iron or wooden sides of the beam, being entirely covered, are thereby protected from re. l
The principal use of the bar or tubeB is to hold the filling ofccment in place in the beam 5 and when it is desired to use the beam open and Without the filling, the supports C C being fastened to the sides AA, the tube B may be entirely dispensed with.`
I claiml. A beam or rafter composed of the sides AA and supports C C, substantially as shown and described.
2. A beam or rafter having sides A Aaud supports C G, in combination with a tube or bar, B, and lled with cement or other analogous substance, substantially as and for the purpose shown and described. i
- HERMAN G. LUEDEKE.
Witnesses:
FRANKLIN BARRITT, RICHARD G-ERNER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US146350A true US146350A (en) | 1874-01-13 |
Family
ID=2215764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US146350D Expired - Lifetime US146350A (en) | Improvement in beams and rafters |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US146350A (en) |
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0
- US US146350D patent/US146350A/en not_active Expired - Lifetime
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