Improvements in Sea Anchors.
Year: 1890

page_text: Date of Application, 4th Oct., 1890-Accepted, 22nd Nov., 1890
COMPLETE DIBUITIVATION.
Improvements in Sea Anchors.
WILLIAM CUTHBERT DYCE, of 9 Pigott Street Limehouse, Sailmaker 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 Improvements in Sea Anchors.
By reference to the drawing it will be seen that it practically consists of a parachutte
with a central rope. I generally make the parachutte itself of era canvas vermin & rot
proof but do not limit myself to any particular kind of canvas for it may, when
desired, be made of wool, linen, cioth, leather india-rubber or any other suitable
flexible material having sufficient strength. I make the form of a parachutte preferably
of a semi-spherical shape, sometimes if desired in the form of a cone, but when a
square piece of canvas is used it naturally adapts itself in the water to a bag form
and the resisting power is lessened.
The central rope C passes through thimbles or beads B to which are attached the
side ropes S. S also at the bottom of the parachutte inside & out, similar thimbles or
beads are attached through which the central rope passes. These thimbles or beads
are prevented from slipping up & down on the central rope by means of rings, pins,
or toggles, marked R on drawing which latter either pass through the central rope or
are firmly attached or gripped thereto. These beads or toggles can be of course
adjusted to allow for shrinkage either of canvas or ropes.
The centre of the bag B B M through which the central rope passes is fitted with
an eyelet hole. The great object being that the whole parachutte might be free to
rotate about the central rope or vice versa.
The side ropes S. S. are for the purpose of preventing the parachutte being turned
inside out when in the water & retaining its proper form.
The ends of the central rope project beyond the parachutte & are fitted with
2 loops L M, the loop L is for the purpose of attaching the line or hawser from the
ship or boat & the loop M is for the purpose of attaching other sea anchors as shewn
by key plan or when sea anchors are made of large size then for affixing a tripping
line so that if pulled from the loop M the parachutte will collapse & be easily drawn
inboard.
Having now particularly described & ascertained the nature of my said inven-
tion & in what manner the same is to be performed I declare that what I
claim is
1st. The use & application of a central rope or column.
2nd. The application of the rotating principle between the parachutte & central
rope or column.
3rd. The combination of a central column or rope & side lines leading to the
circumference of parachutte.
4th. The use of a tripping line to be attached to the collapsible end.
5th. The use of a plaited rope or of a non twistable nature.
6th. The use of mildew rot & vermin proof canvas for the parachutte.
7th. The use of two or more sea anchors attached to same central rope.
All for the purpose of sea anchors & for sea anchors only substantially as described
herein.
Dated this Thind
1000