Improvements in Bridges.
Year: 1890

page_text: Date of Application, 10th May, 1890
Complete Specification Left, 10th Feb., 1891-Accepted, 9th May, 1891
Improvements in Bridges.
İ, Edouard BauDRY-DIOT, Engineer of Epernay in the Republic of. France,
do hereby declare the nature of the said invention to be as follows:-
This invention relates to bridges which are easily set up or dis-mantled and which
with great strength present a pleasing contour.
The bridge is built up of panels or bays each consisting of three equal parts
joined together. The parts are connected by a vertical rod passing through eyelets
solidly attached to the uprights by clamps and each eyelet may fit into a socket
facing it, hooks.may serve to secure the rods in place. Each of the portions of
which the said bays or panels consist, is formed by three upright tied together in
pairs by two cross-pieces. Along the sides of the bridge and at suitable distances
apart are placed other uprights alternating with columns which extend to the
bottoin. Each part is strengthened by transoms suitably connected with the other
pieces say by screw bolts or the like. The weight at top is taken by a tie-bar and
struts transverse bars connect the uprights. Each transverse division has not only
hinge-pins or bolts but also a transverse screw-bolt and each of the three parts
which make up one panel is connected with two stays or buttresses forming an open
angle. Each of the last mentioned stays consists of two bars or columns connected
by cross bars at suitable distances apart.
At the abutments flat iron shoes are provided for the piers or uprights and extend
partly under the buttresses or stays; there are also flat staybars of iron, attached to
the buttresses and these by suitable rings or evelets connect the several portions
of the bridge. Into the base bars of the bridge steel-bars are let in so as to be flush
with the surface. At the joints or points where the separable portions of the bridge
meet eyelets are provided and united by steel connection.
The general contour of the bridge is that of a trapezoidal prism.
The bridge when ready for use is launched on a suitable boat and its centre may
rest on trestles or on one or more such boats.
Dated this 10th dow of Mov 1890.
BERNHARD DUKES,
226, High Holborn, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Bridges.
I, EDOUARD BAUDRY-DIOT, Engineer and Contractor, of Epernay in the
Republic of France, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement :-
This invention relates to a bridge chiefly intended for strategical operations,
constructed partly of wood and partly of iron and adapted to be both fitted
together for use and taken to pieces very rapidly.
The accompanying drawing is a part transverse section through a bridge con-
structed according to this invention.
A bridge constructed according to this invention is practically similar on each
side of its axial line A B and consists of a number of frames C preferably three of
which go to make up the width of the bridge and any desired number of which go
to make up its length.

page_text: Each of the frames C is advantageously constructed of wooden trellis-work and
somewhat resembles a bottomless crate and it is provided with preferably metal
shoes or eyes D so that it may be secured to its neighbour or neighbours by iron or
equivalent bars E passed through the adjacent shoes or eyes D.
The frames may be stayed together by tie bars F extending across and along
the bridge in any desired directions.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is 11
1. A bridge constructed of frames each provided with shoes eyes or the like such
as D and attached to its neighbours by bars such as E passed through the adjacent
eyes substantially as and for the purpose described and illustrated in the accom-
panying drawing.
2. In a bridge the combination with a frame (F) of shoes eyes or the like such
as D and bars such as E substantially as described and illustrated in the accom-
panying drawing.
Dated this 10th day of February 1891
W. P. THOMPSON & BOULT,
Agents for the Applicant.