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US 4,228,594 AGranted
Layout tool for locating holes on structural steel
OwnerAbraham E. Shlagerinventor
Life of this patent
Estimating the term…
Abstract
A layout tool is movable along a structural beam or girder and includes measuring scales adapted to facilitate accurate location of holes to be formed at selected places on the beam. The tool is adapted for manual use at the construction site.
Claims5
A layout tool for structural steel beams having flanges and a web comprising:
- a frame having a central vertical post and a horizontal bridge connected intermediate its ends to the top of the post,
- a horizontal plate connected to the bottom of the post, said plate being arranged to rest on the upper surface of the web of the beam when the beam is positioned with its web in a horizontal plane so as to support the tool on the beam,
- a pair of legs connected to the ends of the bridge and for extending downwardly therefrom on the outside of the flanges of the beam,
- vertical plates connected to the legs for lying against the outer surfaces of the flanges,
- and scales provided on each of the plates for measuring distances on the web from one of the flanges and on the flanges from the central plane of the web.
2 more elements
A layout tool for structural steel beams having flanges and a web comprising:
- a frame,
- a horizontal plate connected to the frame and arranged to rest on the upper surface of the web of the beam when the beam is oriented with its web horizontal,
- a vertical plate connected to the frame and intended to lie against the outer surface of one flange of the beam,
- a scale on the horizontal plate referenced to the inner surface of the vertical plate for indicating distance from the flange on the web,
- a scale on the vertical plate for indicating distances on the flange from the web,
- a second vertical plate connected to the frame and adapted to lie against the outer surface of the second flange of the beam,
- a scale on the second vertical plate also indicating distances on its flange from the plane of the web, and
- means for adjusting the size of the frame to enable it to span the flange with the horizontal plate on the web.
5 more elements
Dependencies are inferred from the claim text.