Patent GB2139672A successfully refreshed from Google Patents.
GB2139672A
Expired / Lapsed
GB
⏱️ 0.0 years remaining
Bridge construction
Assignee: R & E Coordination Ltd
•
Filing: 1983-05-11
•
Granted: —
•
Expires: 2003-05-11
Abstract
Abstract A bridge construction comprising a plurality of adjacent substantially rectangular solid blocks (1) extending to form longitudinal lines of blocks, these longitudinal lines of blocks being assembled adjacent one another to form transverse lines of blocks. Each block (1) is tapered in its end faces in a direction from its upper face to its lower face and rods (4) extend under tension through each longitudinal line of blocks and act to compress the blocks in each longitudinal line together. The tapering in the blocks acts to cause each longitudinal line of blocks to form an upwardly extending arcuate curve from end to end of the longitudinal line. Adjacent longitudinal lines of blocks are held together by rods 7 under tension that extend through the blocks transversely of the longitudinal lines. Hand rails (8) can be mounted on uprights (9) on each side of the bridge. The blocks (1) can be made from a hardwood. <IMAGE>
Inventors
- 👤 Robert Wallace Tudor Britten
Bibliographic Details
Application Number
—
Jurisdiction
GB
Data Source
google_patents
Last Synchronized
2026-11-08 08:04
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/10; E01D19/103; E01D4/00; E01D2101/00; E01D2101/10
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
114 words
A bridge construction comprising a plurality of adjacent substantially rectangular solid blocks extending to form longitudinal lines of blocks, these longitudinal lines of blocks being assembled adjacent one another to form transverse lines of blocks, each block
being tapered in its end faces in a direction from its upper face to its lower face, there
being a rod under tension extending through
each longitudinal line of blocks from end to
end of the line and acting to compress the
blocks in each longitudinal line together, and
the tapering in the blocks acting to cause
each longitudinal line of blocks to form an
upwardly extending arcuate curve from end to
end of the longitudinal line.
Claim 2
Dependent Claim
114 words
A bridge construction comprising a plurality of adjacent substantially rectangular solid blocks extending to form longitudinal lines of blocks, these longitudinal lines of blocks being assembled adjacent one another to form transverse lines of blocks, each block
being tapered in its end faces in a direction from its upper face to its lower face, there
being a rod under tension extending through
each longitudinal line of blocks from end to
end of the line and acting to compress the
blocks in each longitudinal line together, and
the tapering in the blocks acting to cause
each longitudinal line of blocks to form an
upwardly extending arcuate curve from end to
end of the longitudinal line.
Claim 3
Dependent Claim
26 words
A bridge construction as claimed in
claim 1, wherein there are four of said ten
sioned rods extending through each said long
itudinal line of blocks.
Claim 4
Dependent Claim
19 words
A bridge construction as claimed in
claim 1 or 2, wherein the blocks have been
fashioned from a hardwood.
Claim 5
Dependent Claim
19 words
A bridge construction as claimed in
claim 1, 2 or 3, wherein the rods are of mild
bright steel.
Claim 6
Dependent Claim
43 words
A bridge construction as claimed in any
one of the preceding claims, wherein the ends
of each rod extend beyond the ends of the
longitudinal lines of blocks and are screw
threaded and receive tightening nuts, by
which means the rods are tensioned.
Claim 7
Dependent Claim
29 words
A bridge construction as claimed in
claim 5, wherein a plate is provided at each
end of each longitudinal line of blocks,
against which plate the tightening nuts bear.
Claim 8
Dependent Claim
36 words
A bridge construction as claimed in any
one of the preceding claims, wherein adjacent
longitudinal lines of blocks are held together
by further rods under tension extending
through a plurality of the tranverse lines of
blocks.
Claim 9
Dependent Claim
65 words
A bridge construction as claimed in any
one of the preceding claims, wherein uprights
are provided at interval on one or both sides
of the bridge, the uprights being intercon
nected on a respective side of the bridge by a
rail composed of a plurality of longitudinally
extending members joined together under
compression by a rod passing through them
from end to end under tension.
Claim 10
Dependent Claim
32 words
A bridge construction as claimed in claim 8, wherein a guard rail interconnects
said uprights on a respective side of the
bridge, said guard rail being positioned be
neath the firstmentioned rail.
Claim 11
Dependent Claim
24 words
A bridge construction as claimed in
any one of the preceding claims, wherein said
blocks each have a 2" taper from top to
bottom.
Claim 12
Dependent Claim
27 words
A bridge construction as claimed in
any one of the preceding claims, wherein
each rod extending through the longitudinal
lines of blocks is of 10 mm diameter.
Claim 13
Dependent Claim
15 words
1 2. A bridge construction, substantially as
hereinbefore described with reference to the
accompanying drawings.
Claim 14
Dependent Claim
15 words
1 2. A bridge construction, substantially as
hereinbefore described with reference to the
accompanying drawings.
Claim 15
Dependent Claim
120 words
1 3. A method of building a bridge, com
prising assembling a plurality of adjacent sub
stantially rectangular solid blocks adjacent one
another to form longitudinal lines of blocks,
each block being tapered in its end faces in a
direction from its upper face to its lower face,
assembling these longitudinal lines of blocks adjacent one another to form transverse lines of blocks, inserting a rod through each longitudinal line of blocks from end to end of the line, and tensioning each rod to compress the blocks in each longitudinal line together, the taper of each block acting to cause each longitudinal line of blocks to form an upwardly extending arcuate curve from end to end of the longitudinal line.
Claim 16
Dependent Claim
120 words
1 3. A method of building a bridge, com
prising assembling a plurality of adjacent sub
stantially rectangular solid blocks adjacent one
another to form longitudinal lines of blocks,
each block being tapered in its end faces in a
direction from its upper face to its lower face,
assembling these longitudinal lines of blocks adjacent one another to form transverse lines of blocks, inserting a rod through each longitudinal line of blocks from end to end of the line, and tensioning each rod to compress the blocks in each longitudinal line together, the taper of each block acting to cause each longitudinal line of blocks to form an upwardly extending arcuate curve from end to end of the longitudinal line.
Claim 17
Dependent Claim
51 words
A method as claimed in claim 13, wherein parts of the bridge are mounted on a wheel chassis to enable the bridge to be transported into position, the wheeled chassis thereafter being removed. 1 5. A method of building a bridge, substantially as hereinbefore described with reference to the accompanying drawings.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.