Improvements in the Construction of Collapsing Boats.
Year: 1890

page_text: Fate of Application, 11th Jan., 1890
Complete Specification Left. 11th Oct., 1890-Accepted, 22nd Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Collapsing Boats.
I, FRANCIS JAMES CANDY, of Highfield, Fen Ditton, in the County of Cambridge,
Master of Arts, do hereby declare the nature of this invention to be as follows:-
This invention relates to the construction of collapsing boats which can be easily
and quickly opened out or shut up, or taken to pieces if desired.
The boats are made of three or more longitudinal sections each of a triangular
shape curved or bulged; one section is rather wider than the others and is provided with
a cone at its apex, over which are passed rings secured to the apices of the other
sections.
The other extremities of the sections are turned over at right angles and are all
connected by a pivot pin to the central section, that is to say, the section which carries
the cone or bow of the boat. This central section also carries a keel on its under side.
All the other sections turn on the cone bow, and pivot pin at the stern; and the cone
and pivot are opposite to each other and form an imaginary axis on which the side
sections turn. The sections are so placed on the cone and pivot that they can all be
nested in the largest or central section, or under it on the two sides of the keel. Each
section is provided with a bead or rim which abuts against a reversely placed bead or
rim, or against a shoulder or the like on the next section, so that the pulling up of
the end sections will pull forward all the other sections and open out the boat. Tarred
rope or the like is inserted between the beads or rims of two adjacent sections, or
other means are adopted to make the boat watertight.
When the boat is opened out, it may be kept rigid by cross stays, or seats, or by
means of a framework made specially to fit all round the sides and stern.
As a modification of this invention the collapsible boat may be made in transverse
sections as well as longitudinal sectious, the transverse sections being attached to each
other by bolts and nuts, or by other suitable means.
1215
CASTLE SMITH,
Per F. W. Golby,
"Invention" Office, 54, Fleet Street, London, E.C.,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Construction of Collapsing Boats.
I, FRANCIS JAMES CANDY, of 10 Norham Road, Oxford, in the County of Oxford,
Master of Arts, 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 the construction of collapsing boats which can be easily
and quickly opened out or shut up or taken to pieces if desired.
The boats are made of three or more longitudinal sections each of a triangular
shape curved or bulged; one section is wider than the others and is provided with a
cone at its apex, over which are passed rings secured to the apices of the other
sections.
The other extremities of the sections are turned over at right angles and are all
connected by a pivot pin to the central section, that is to say, the section which carries
the cone or bow of the boat. This central section also carries a keel on its under
side. All the other sections turn on the cone bow, and pivot pin at the stern; and

page_text: the cone and pivot are opposite to each other and form an imaginary axis on which
the side sections turn. The sections are so placed on the cone and pivot that they can
all be nested on the largest or central section or under it on the two sides of the keel.
Each section is provided with a bead or rim or turned edge which abuts against a
reversely placed bead or rim or turned edge, or against a shoulder or the like on the
next section, so that the pulling up of the end sections will pull forward all the other
sections and open out the boat. Tarred rope or the like is inserted between the
beads or rims of two adjacent sections or other means are adopted to make the
boat watertight.
When the boat is opened out, it may be kept rigid by cross stays, or seats, or by
means of a framework made specially to fit all round the sides and stern.
As a modification of this invention the collapsible boat may be made in transverse
sections as well as longitudinal sections, the transverse sections being attached to each
other by bolts and nuts, or by other suitable means.
And in order that my invention may be more fully understood and carried into
practice, I will now proceed to describe the same with reference to the accompanying
drawings in which similar letters are used to indicate corresponding parts throughout.
Figure 1 is a side elevation of a collapsing boat constructed in accordance with my
invention, and shewn in its opened-out position ;
Figure 2 is a plan and
Figure 3 is a stern view of the same;
Figure 4 is a central longitudinal section taken on line X X Figure 2, and
Figure 5 is a transverse vertical section taken on line Y Y Figure 2;
Figure 6 shews a stern view of the same boat when closed up;
Figures 7 and 8 shew elevation and plan of a modified form of my invention.
Referring to Figures 1 to 6 all the parts A are made as sectors or triangular sections
of a conoid bulged or curved to the required shape of the boat, the ends being
turned up at right angles to form the stern of the boat. The sections A are made
slightly varying in size so that they will nest one in the other, the largest or central
section A2 being provided at its apex with a cone B having annular depressions or
grooves B2 over which are passed rings B3 secured to the apices of the other sections.
Other means of pivoting the sections A to the central sections A² may be adopted
as found convenient.
At the stern of the boat the sections A are all pivoted to a pin secured to the
central section A2 (see Figure 4). Each section is provided with a bead or rim D on
one edge and with a reversely placed bead or rim, or a shoulder or the like E on the
other edge, so that the bead or rim D on one section abuts against the shoulder or the
like E on the contiguous section, as shewn in Figure 5, thereby preventing the sections
from separating from each other when pulled out, and also opening out all the sections
one after the other by simply pulling out the end sections A³. The central section A²
is provided with a shoulder or the like E at each end, and the end sections A³ have
a bead or rim D at one end, and a flange F at the other. These flanges F are turned
inwards towards the centre of the boat and thus, when the boat is opened out, they
form an internal flange all round the top or edge of the boat. To the central
section A² is attached the keel piece G. In collapsing or opening out the boat all the
sections will turn on the cone B and pivot pin which, being aligned, form the ends
of an imaginary axis to the boat.
When the boat is opened out it is kept rigid by a cross stay H, the ends of which
fit under the flanges F.F. On the under side of the cross stay H is affixed a
threaded collar or nut J through which works a screw K, the point of which turns
in a recessed base L secured to the bottom or central section A2 of the boat. When
the screw is turned in one direction it passes into the nut J thereby separating the
cross stay H and bottom from each other thereby opening out the boat and keeping
it rigid in this position. The reverse operation is effected by turning the screw in
the opposite direction. Other means of keeping the boat rigid may however be
adopted.
In Figures 7 and 81 have shewn elevation and plan of a collapsing boat made in

page_text: transverse sections as well as longitudinal sections. The construction and mode of
operation of each transverse section is the same as in the form already described and
shewn in Figures 1 to 6, the transverse sections being secured together by bolts and
nuts M or by other strong and rigid means of connection.
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
A collapsing boat consisting of three or more longitudinal sections pivotted
together and nesting one within the other, the sections having beads or rims and
shoulders or the like, to cause the sections to open each other out one after the other
and to keep them from separating from each other when so opened out, the boat
being secured and kept rigid in its opened out position by cross stays, seats, or by
other suitable means constructed and operating substantially in the manner described
and illustrated and for the purpose stated.
Model
1111 1
1000
CASTLE SMITH,
Per F. W. Golby,
"Invention" Office, 54, Fleet Street, London, E.C.,
Agent for the Applicant.