US184522A - Improvement in wrought-iron girders - Google Patents
Improvement in wrought-iron girders Download PDFInfo
- Publication number
- US184522A US184522A US184522DA US184522A US 184522 A US184522 A US 184522A US 184522D A US184522D A US 184522DA US 184522 A US184522 A US 184522A
- Authority
- US
- United States
- Prior art keywords
- head
- wrought
- improvement
- iron
- girder
- 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
- 229910000754 Wrought iron Inorganic materials 0.000 title description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title description 6
- 210000000614 Ribs Anatomy 0.000 description 6
- 241001190434 Aon Species 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000007906 compression Methods 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
- 239000007787 solid Substances 0.000 description 2
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/292—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being wood and metal
Definitions
- the head A consists of a T- bar made with leg B, and having its head at on top, and provided with'ribs a aon its under edges.
- the leg B can be placed at one side ofthe center of the head, toA secure Aa symmetrical appearance, if desired.
- the head being made flat on top, allows the addition ot' cover-plates when desired, for additional section at the center or along the whole length of the head.
- web C of plate or lattice-bar is riveted to the leg B of the upper head A, and the lower head of the'girder can be made of a second T- bar, A', or of two angles, D D, with a plate, E, if desired, for extra section, as shown.
- a wrought-iron girder having an upper T- head made with Aflat top fand ribs on its under edges, in combination with a plate or latticeweb and T or angle lower head, substantially as and for the purpose specilied.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Description
D. HAMMOND.
WRoUGHT-IRQN GIRDER. N.184,'522. Patented N0'v.z1,1s7s.
UNITED STATES PATENT OFFICE.
DAVID HAMMOND, OF CANTON, OHIO, ASSIGNORTO WROUGHT IRON l BRIDGE COMPANY, 0F SAME PLACE.
IMPROVEMENT IN WROUGHT-IRON GIRDERS.
Specication forming part of Letters Patent No. l 84,522, dated November 21, 1876; application filed August 19, 1876.
To all whom it may concer-n:
Be it known that I, DAVID HAMMOND, of Canton, in the county of Stark and State ot Ohio, have invented certain new and useful Improvements in Wrought-Iron Girders; and
that the following is a full, clear, and exact head, plate, web, and angle, and plate lower head.
The head A consists of a T- bar made with leg B, and having its head at on top, and provided with'ribs a aon its under edges. The leg B can be placed at one side ofthe center of the head, toA secure Aa symmetrical appearance, if desired. The head, being made flat on top, allows the addition ot' cover-plates when desired, for additional section at the center or along the whole length of the head. The
web C of plate or lattice-bar is riveted to the leg B of the upper head A, and the lower head of the'girder can be made of a second T- bar, A', or of two angles, D D, with a plate, E, if desired, for extra section, as shown. p
The advantages of this construction will be evident on considering that the upperhead of the girder acts under compression, and when the girder is loaded this head has a tendency to give way by bending sidewise. Consequently, by making such head wide and in one solid piece, and then concentrating the metal in the ribs on. the edges ofthe head, where it has the greatest effect to prevent crushing or cockling the head, the same amount of headsection will make a much stronger girder than -when used in the ordinary I-beam or anglebar form of head.-
What I-claim as new, and desire to secure by Letters Patent, is-
A wrought-iron girder having an upper T- head made with Aflat top fand ribs on its under edges, in combination with a plate or latticeweb and T or angle lower head, substantially as and for the purpose specilied. v
As evidence of the foregoing Witness my hand this 7th day of August, A. D. 1876.
DAVID HAMMOND. Witnesses:
WM. BRITTON, J 0B ABBOTT.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US184522A true US184522A (en) | 1876-11-21 |
Family
ID=2253927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US184522D Expired - Lifetime US184522A (en) | Improvement in wrought-iron girders |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US184522A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6892502B1 (en) | 2003-03-26 | 2005-05-17 | David A. Hubbell | Space frame support structure employing weld-free, single-cast structural connectors for highway signs |
| US8397462B2 (en) | 2011-06-03 | 2013-03-19 | Usg Interiors, Llc | Open web grid runner |
| US9021759B2 (en) * | 2012-06-13 | 2015-05-05 | Usg Interiors, Llc | Serpentine insert for open web grid |
| US20200102746A1 (en) * | 2018-10-01 | 2020-04-02 | Tuomo Poutanen | Customized woody trussed joist |
-
0
- US US184522D patent/US184522A/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6892502B1 (en) | 2003-03-26 | 2005-05-17 | David A. Hubbell | Space frame support structure employing weld-free, single-cast structural connectors for highway signs |
| US8397462B2 (en) | 2011-06-03 | 2013-03-19 | Usg Interiors, Llc | Open web grid runner |
| US9021759B2 (en) * | 2012-06-13 | 2015-05-05 | Usg Interiors, Llc | Serpentine insert for open web grid |
| US20200102746A1 (en) * | 2018-10-01 | 2020-04-02 | Tuomo Poutanen | Customized woody trussed joist |
| US11162262B2 (en) * | 2018-10-01 | 2021-11-02 | Tuomo Poutanen | Customized woody trussed joist |
| US20220042310A1 (en) * | 2018-10-01 | 2022-02-10 | POUTANEN Tuomo | Customized woody trussed joist |
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