Year: 1887

page_text: Date of Application, 1st Nov., 1887
Complete Left, 24th Nov., 1887
Complete Accepted, 27th Dec., 1887
I DUNCAN CAMPBELL, Assistant Surgeon in the New Zealand Permanent Forces,
of Fort Cautley, Auckland, New Zealand do hereby declare the nature of this invention
to be as follows:-
The object of my invention is to construct for vessels, a yard of iron or steel, or of
metal and wood, which will admit of furling the sails by sliding them longitudinally
toward the mast.
My invention consists in a tubular yard formed of sheet metal, or in part of sheet
metal and in part of wood. It also consists in the combination with the yard thus
constructed, of removable caps applied to the ends of the yard, and guides for
receiving the double eyes or hanks attached to the sails.
The yard is formed of two similar oppositely arranged halves, each made of a taper-
ing plate of metal bent into approximately semi-circular form in cross-section with
the edges doubled or returned upon themselves, forming a stiffening for the edge of
the plate, and furnishing a rounded finished edge.
The halves of the yard are secured to a flanged plate or beam which extends through-
out the entire length of the yard, the halves of the yard being secured to the flanges
of the beam by rivets, which hold the two halves rigidly in such a position with their
edges towards each other as to form slots in the upper and lower side of the yard. A
rod extends longitudinally through each compartiment of the yard opposite the slot,
and is supported by caps secured on opposite ends of the yard. These rods are
supported in the centre of the yard by a diaphragm, placed in each compartment and
serving to stiffen and support the yard at that point.
Upon these rods are placed double eyes or hanks, one eye of each hank being
received on one or other of the rods, and the shank of the hank extending through the
slot and being bent slightly in the direction in which it is drawn by the sail. The
sail is secured to the hanks by a lashing extending around the bolt-rope of the sail
and through the outer eye of the hank. The sail is furled by sliding the hanks
longitudinally on the rods and in the slots.
In a modified form of yard the beam is dispensed with and the halves of the yard
are each formed with a tapering plate of metal bent into approximately semi-cylindrical
гр. 027

page_text: form, the edges being returned upon themselves as in the other case, and being
separated from each other a sufficient distance to form the slot. The halves thus
formed are placed with their flat sides together to form a diametrical web and are
connected together by rivets, and each half is supported at intervals by internal braces.
These braces are rivetted to the diametrical web and to the curved portions of the plate
near the edges. Opposito each slot is arranged a rod which extends through the
entire length of the yard and receives the eyes of the hanks or hooks. The outer hooked
ends of the hanks are inclined to receive the bolt-rope of the sail or the lashing
surrounding the bolt-rope. The ends of the yards thus formed are provided with caps
as in the other case.
In a composite yard mado partly of wood and partly of metal, the compartments in
which the banks or hooks and their rods are received aro of triangular form in cross-
section having their outer surfaces cylindrically convex. The halves of the metal
part of the composite yard are formed of plates of metal riveted together along their
median line, bent outward at an angle of about 45°, with their edges curved inward
toward each other on a circular curve and returned upon themselves, forming stiffeners
as in the other case. The recesses thus formed upon opposite sides of the metallic
portions are filled with sector shaped strips of wood, which complete the circular
section of the yard and are secured in place by diametrical bolts extending through the
wooden and metallic portions. In the compartments formed by the metallic portion
are arranged rods as before, and the hanks or hooks are inserted in the same
manner.
For yards of small vessels the rods may be omitted, and the banks may bo provided
with a suitable rounded head for retaining them in the slots.
Dated thig 31st day of October 1007

page_text: Improvements in Ships' Yards for Facilitating the Furling of Sails.
I, DUNCAN CAMPBELL Assistant-Surgeon in the New Zealand Permanent Forces,
of Fort Cautley, Auckland, New Zealand, do hereby declare the nature of this
invention and in what manner the same is to bo performed, to be particularly described
and ascertained in and by the following statement:-
The object of my invention is to construct for vessels, a yard of iron or steel, or of
metal and wood, which will admit of furling the sails by sliding them longitudinally
toward the mast.
My invention consists in a tubular yard formed of sheet metal, or in part of sheet
metal and in part of wood. It also consists in the combination with tho yard
thus constructed, of removable caps applied to the ends of the yard, and guides for
receiving the double eyes or hanks attached to the sails.
Reference is to be had to the accompanying drawings forming part of this specifica-
tion, in which figure 1 is a sectional perspective view. Figure 2 is a longitudinal
section taken through the cap at the end of the yard. Figure 3 is a longitudinal
section of the central portion of the yard. Figuro 4 is a transverse section of a yard
formed without an I-beam; and figure 5 is a transverse section of a composite yard
formed of iron and wood. Similar letters of reference indicato corresponding parts in
all the figures.
The yard is formed of two similar oppositely arranged halves A A' each made of a
tapering plate of metal bent into approximately semi-circular form in cross-section
with the edges doubled or returned upon themselves to form a hem for stiffening the
edge of the plate and furnishing a rounded finished edge. The halves A A' of the
yard aro secured to a flanged plate or beam B which extends throughout the entire
length of the yard, the halves A A' of the yard being secured to the flanges a of the
beam by rivets which hold the two halves rigidly in such a position with their edges
towards each other as to form slots C in the upper and lower side of the yard. A
rod D extends longitudinally through each compartment of the yard opposite the slot C
and is supported by caps E secured on opposito ends of the yard. These rods D are
supported in the centre of the yard by a diaphragm F placed in each compartment and
serving to stiffen and support the yard at that point. Upon these rods D are placed
double eyes or hanks G, one eye of each hank being received on one or the other of
the rods D'and the shank of the bank extending through the slot C and being bent
slightly in the direction in which it is drawn by the sail. The sail is secured to the
hanks by a lashing 6 extending around the bolt rope of the sail and through the outer
eye of the hank. The sail is furled by sliding the hanks longitudinally on the rods D
in the slots C.
In the form of yard shewn in figure 4, the beam B is dispensed with and the halves
of the yard are each formed of a tapering plate of metal A² bent into approximately
semi-cylindrical form, the edges being returned upon themselves as in the other case
and being separated from each other a sufficient distance to form the slot C. The

page_text: halves thus formed are placed with their flat sides together to form a diametrical web
and are connected together by rivets a¹ and each half is supported at intervals by
internal braces B¹. These braces are rivetted to the diametrical web A2 and to tho
curved portions of the plate near the edges. Opposite each slot C is arranged a
rod D' which extends through the entire length of the yard and receives the eyes 6¹ of
the banks or hooks G¹. The outer hooked ends of the hanks G' are inclined to receive
the bolt ropo of the sail or the lasbing surrounding the bolt rope. The ends of the
yard thus formed are provided with caps E as in the other case.
In the composite yard shewn in figure 5, the compartments in which the banks or
hooks G' and their rods are received, are of triangular form having their outer surfaces
cylindrically convex. The halves of the metal part of the composite yard are formed
of plates of metal rivetted together along their median line, bent outward at an angle
of about 45° with their edges curved inward toward each other on a circular curve and
returned upon themselves forming stiffeners as in the other case. The recesses thus
formed upon opposite sides of the metallic portions A³ are filled with sector-shaped
strips B2 of wood which complete the circular section of the yard, and are secured in
place by diametrical bolts c' extending through the wooden and metallic portions. In
tho compartments formed by the metallic portion, are arranged rods D¹ as in figuro 3,
and the hanks or hooks G' are inserted in the same manner.
For yards for small vessels, the rods D D' may be omitted and the hanks may be
provided with a suitable rounded head for retaining them in the slots C³.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed, I declare that what I claim is ;-
1. The improved hollow metallic yard having slots or longitudinal openings provided
with uniting caps at each end of the same, and with interior motal rods under and
parallel to the said slots, all as described and for the purposes set forth.
2. The hollow metal yard provided with longitudinal slots and uniting caps and
interior rods and with a horizontal central plate extending longitudinally from end to
end of the yard, as and for the purpose set forth.
3. The hollow metal yard provided with longitudinal slots and uniting caps and
interior rods, and with a longitudinal metal plate and a central disc, substantially as
and for the purposes set forth.
4. In combination with said hollow metal yard having an upper and lower slotted
surface, the rods supported within the yard, the doublo metal rings or lanks of the
two rings and the connecting cylindrical metal neck or bar, as and for the purposes
set forth.
5. A yard formed of strips of metal connected by their plain faces and having their
edges bent into approximately circular form and provided with hems and longitudinal
slots, substantially as specified.
6. The combination with a metallic yard provided with longitudinal slots C¹, of
hanks having inclined hooks formed upon their outer ends, substantially as specified.
7. A composite yard formed of alternating metal and wooden segments, substantially
as specified.
8. A composite yard formed of alternating wooden and hollow metallic segments of
approximately triangular form, the said hollow metallic segments being provided with
slots C¹ for receiving the banks G', substantially as specified.
Dated this 24th day of November 1887
D. CAMPBELL.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.