AN IMPROVED LANDING STAGE AND CONNECTING GANGWAY
Year: 1884

page_text: I STEPHEN LAMPARD of 57 St Georges Square Portsea in the County of Hants
and Victoria Street Westminster in the County of Middlesex Builder and Engineer
do hereby declare the nature of my Invention for "AN IMPROVED LANDING STAGE
AND CONNECTING GANGWAY" to be as follows:-
This Invention relates to improvements in the arrangement and construction of
landing stages combined with connecting gangways.
The connecting or landing stage according to my improvements is represented in
the Drawings hereto annexed and has a roadway A in the contre for vehicles and
gangways B on each side for passengers. The pontoon C has a landing prow C'
counterbalanced with winch apparatus D for lifting the landing prows C¹ and D'
80 as to be quickly lowered on to the bridge.
The passenger gangway or prow D' is connected to the landing prow C¹ by a
chain and rises and falls with it.
The connecting gangway or bridge E and landing prow C¹ are both attached to
a carriage F (on rollers or wheels) which is free to move to and fro with the rise
and fall of the tide.
Guides G are arranged between which the chains of the floating bridge H pass.
A comparatively small area is required on the fore shore for the necessary dock
as compared with the present system.
The connecting or landing bridge or gangway E in place of being single may be
made in two parts or divisions E E' with an intermediate pontoon C³ to support
the two central or inner ends of the two gangways or bridges E E¹ (Figure 3) and
causing the intermediate pontoon C to come to rest upon the bed of an inner basin
or dock I before the other pontoon C has descended to its lowest position with the
tide by which arrangement the incline of the landing or connecting gangway or
bridge can be reduced to a minimuin.
The pontoon C and connecting gangway E is so arranged as to divide the incline
caused by the rise and fall of the tide into two parts showing equal inclines at
high and low water as indicated by the dotted lines X X in Figures 1 and 3 of the
Drawings.
Dated this 5th day of January 1884

page_text: I STEPHEN LAMPARD formerly of 57 but now of 63 Saint Georges Square
Portsea in the County of Hants and Victorin Street Westminster in the County
of Middlesex Builder and Engineer do hereby declare the nature of my Invention
for AN IMPROVED LANDING STAGE AND CONNECTING GANGWAY 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 improvements in the construction and arrangements of
landing stages combined with connecting gangways. The connecting gangway or
landing stage according to my improvements has a roadway in the centre for
vehicles and a gangway on each side for passengers.
The roadway in the centre of connecting gangway or landing stage for vehicular
traffic has a counterbalanced landing prow at end of roadway with winch
arrangement so as to be easily and quickly lowered.
The landing prow for passengers is placed immediately under the landing prow
for vehicles to which-it-is-connected and rises and falls with it.
The pontoon which supports the end of the landing bridge has two-decks-the-
upper deck having the rond way for vehicular traffic in the centre the space on
either side of which may be used as a promenade.
The lower deck being divided into waiting rooms with all necessary conveniences
and provided with staircases leading from the gangways. The whole deck being
under cover.
This deck being especially desirable as a covered lauding stage for
passengers landing from vessels or ferry boats.
The connecting bridge and landing prow are both attached to a carriage (on
rollers or wheels) which is free to move to and fro with the rise and fall of the tide.
Vacancies or passages are arranged in the hull of the pontoon through which
floating bridge chains may pass when necessary or through which vessels may be
moored or made fast when required.
By arranging the connecting or landing bridge in two parts or divisions with an
intermediate pontoon to support the two central or inner ends of the two landing
bridges and causing the intermediate pontoon to come to rest upon the bed of an
inner basin or dock before the other pontoon has descended to its lowest position
with the tide the incline of the landing or connecting bridge can be reduced to a
minimum.
This connecting bridge is so placed that the incline due to the rise and fall of the
tide is divided into two equal parts thus with a bridge 150 feet long in a tide way
having a rise and fall of 18 feet the incline at high and low water would be about
1 in 16.
The landing stage and connecting gangway according to my improvements is
represented in the Drawings hereto annexed Figs. 1 and 2 and has a roadway A in
the centre for vehicles and gangways B-B on each side for passengers.
The pontoon C has a counterbalanced landing prow C₁ with winch arrangement
or apparatus for lifting the landing prows C and D so as to be quickly lowered or
to the floating bridge H.
The passenger gangway D is connected to the landing prow C¹ and rises and
falls with it.
The connecting bridge E and landing prow C¹ are both attached to a carriage B
on rollers or wheels which is free to move to and fro with the rise and fall o
the tide.
Guides G are arranged between which the chains of the floating bridge H pass.

page_text: A comparatively small area is required on the foreshore for the necessary dock as
compared with the present system.
The connecting or landing bridge E in place of being single may be made in two
parts or divisions E E¹ Fig. 3 with an intermediate pontoon 0 to support the
two central or inner ends of the two bridges E E¹ and causing the intermediate
pontoon C to come to rest upon the bed of an inner basin or dock I before the
other pontoon C has descended to its lowest position with the tide the incline of
the landing or connecting bridge can be reduced to a minimum as shewn by Fig. 3.
The pontoon C and connecting bridge E is so arranged as to divide the incline
caused by the rise and fall of the tide into two parts showing equal inclines at high
and low water as indicated by the dotted line X.
The pontoon C Fig. 4 is constructed upon 12 or more separate caissons or cells K
which can be removed separately for the purposes of cleaning or repair.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
1st The arrangement of the connecting bridge E and pontoon C so as to divide
the incline due to the rise and fall of the tide into two equal parts.
2nd The arrangement of the connecting bridge E and the landing prows C¹
and D connected to the carriage F making a perfect roadway independent of the
motion of the pontoon C.
3rd The saving effected of area required on the foreshore as compared with the
present system.
4th For the double bridge and intermediate pontoon Fig. 3 reducing the incline
to a minimum.
5th The pontoon having two decks the whole of the passenger platform is under
cover and the passengers are entirely separated from the vehicles.
Dated this Fourth day of September 1884.
STEPHEN LAMPARD.