US130479A - Improvement in bridge-connections - Google Patents

Improvement in bridge-connections Download PDF

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Publication number
US130479A
US130479A US130479DA US130479A US 130479 A US130479 A US 130479A US 130479D A US130479D A US 130479DA US 130479 A US130479 A US 130479A
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improvement
bridge
connections
projection
strut
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00Movable or portable bridges; Floating bridges
    • E01D15/12Portable or sectional bridges
    • E01D15/133Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges

Definitions

  • Our invention consists of a block or connecting-piece having a projection for the passage of tie-rods,and a socket foi ⁇ the reception of the end of a transverse strut, so arranged that the saidstrut shall resist the strains imparted through the tie-rods.
  • Figure l isa plan view, showing our connecting-piece applied to the upper chord system of an iron bridge; Fig. 2, a side view; and Fig. 3, an elevation, partly 'in section.
  • the connecting-piece A consists of a cast- Y projection D extends into and is riveted tothe upper end of a hollow post, E; the adjacent ends of two hollow sections, C C, of the top chord in like manner receive and are riveted to the projections B B; and one end of the transverse strut G rests in the socket F.
  • the projection M is perforated for the passage of two diagonal tie-rods, L L, each of which extends across the-vertical axis of the projection, one being above the other, as shown in the drawing, and both being very nearly on the saine horizontal plane as the axis of the strut.
  • the projections DB instead of being annular may be octagonal or of other form, to coincide with chord-pieces or posts of corresponding sectional form.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Description

T. c. CLARKE &'A. BONZANO.
Improvement i'n Br'idge-Connection.
Patented Aug. 13,1872.
IN o'.
Fry. 5. 5707 lfm/1i Fg. Z/. mi WW @ff/77M UNITED STATES PATENT OEEIc-E.
THOMAS C. CLARKE AND ADOLPHUS BONZANO, OF PHILADELPHIA7 PA.
IMPROVEMENT IN `BRIDGE-(50NN ECTIONS.
Specification forming part of Letters Patent No. 130,479, dated August 13, 1872.
and ADoLrHUs BoNzANo, of the city of Philadelphia, in the State or Pennsylvania, have invented certain new and useful Improvements in Connections or Fastenings for Bridges of Iron or Steel; and we do hereby declare the following to be a full, clear, and exact description of the same.
Our invention consists of a block or connecting-piece having a projection for the passage of tie-rods,and a socket foi` the reception of the end of a transverse strut, so arranged that the saidstrut shall resist the strains imparted through the tie-rods.
In the accompanying drawing, Figure lisa plan view, showing our connecting-piece applied to the upper chord system of an iron bridge; Fig. 2, a side view; and Fig. 3, an elevation, partly 'in section.
The connecting-piece A consists of a cast- Y projection D extends into and is riveted tothe upper end of a hollow post, E; the adjacent ends of two hollow sections, C C, of the top chord in like manner receive and are riveted to the projections B B; and one end of the transverse strut G rests in the socket F. In order to insure a firm and positive bearing of the connecting-piece against the strut G, the projection M is perforated for the passage of two diagonal tie-rods, L L, each of which extends across the-vertical axis of the projection, one being above the other, as shown in the drawing, and both being very nearly on the saine horizontal plane as the axis of the strut. Owing to this arrangement the strains, applied through the tie-rods to the projection M, are sustained by the strut G. rIhe said proj ection can, therefore, be much less in dimension than it would be if the strut were dierently situated and the entire strain had to be resisted by the projection. In the connectingpiece is a transverse opening, H, for the recep-n tion (in the present instance) of the throughpin K, to which the main and counter diagonals I J are attached.
The projections DB, instead of being annular may be octagonal or of other form, to coincide with chord-pieces or posts of corresponding sectional form.
Claim.
US130479D Improvement in bridge-connections Expired - Lifetime US130479A (en)

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