Year: 1886

page_text: Date of Application, 24th Sept., 1886.
Complete Left, 23rd June, 1887.
Complete Accepted, 26th July, 1887.
DE
[Communicated from abroad by LUCIEN RIPAMONTI, of Caudéran, and HENRI DRIVET,
of Lussac de Libourne, France.]
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake, & Co. Patent Agents,
Southampton Buildings, in the County of Middlesex do hereby declare the nature of
this invention to be as follows:-
This invention relates to mariners' compasses, and has for its object to protect the
magnetic needle from the disturbing influences to which it is subjected on steel and
other vessels.
For this purpose this compass is encircled or surrounded by one or more plates or
layers of soft iron, steel, cast iron or other suitable metal, the form of which may vary.
In the accompanying drawing
Figures 1 and 2 show in plan and vertical section a compass encircled by plates of
a basin-form.
Figures 3 and 4 are similar views to Figures 1 and 2 showing the arrangement of
plates of another form. As shown in Figures 1 and 2 the compass is surrounded by
five cups or basins a, b, c, d, e of hemispherical form and composed of soft iron
carefully annealed. These basins are mounted upon a bolt A and are kept at suitable
distances from each other by washers B.
The compass is suspended inside the smallest cup or basin by means of gimballs
and the largest or outer cup or basin is fastened to a binnacle.
As shown in Figures 3 and 4 sixteen rings and six soft iron discs g are connected
by means of four bolts c and are kept at suitable distances from each other by
washers D.
The rings fare of different breadths so that a hemispherical recess is formed within
the series of rings. The compass is suspended in the said recess as in the previous
modification and the whole is fastened in a binnacle.
The number of discs and rings as well as of the cups or basins or other encircling
plates can be varied as desired and also the forms and sizes of the said plates. The
invention consists especially in placing suitable metal between the magnetic needle
and the object or material which affects it magnetically.
Dated thin 94th dor of Santember 1886
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.

page_text: Improvements relating to Mariners' Compasses.
I HENRY HARRIS LAKE of the firm of Haseltine Lake & Co. Patent Agents
Southampton Buildings, in the County of Middlesex 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 mariners' compasses, and has for its object to protect the
magnetic needle from the disturbing influences to which it is subjected on steel and
other vessels.
For this purpose the compass is encircled or surrounded by one or more plates or
layers of soft steel cast iron or other suitable metal, the form of which may vary.
In the drawing accompanying the provisional specification
Figures 1 and 2 show in plan and vertical section a compass encircled by plates of
a basin form.
Figures 2 and 3 are similar views to Figures 1 and 2 showing the arrangement of
plates of another form. As shown in Figures 1 and 2 the compass is surrounded by five
cups or basins a, b, c, d, e, of hemispherical form and composed of soft iron carefully
annealed. These basins are mounted upon a bolt A and are kept at suitable distances
from each other by washers B.
The compass is suspended inside the smallest cup or basin by means of gimballs and
the largest or outer cup or basin is fastened to a binnacle.
As shown in Figures 3 and 4 sixteen rings and six soft iron discs g, are connected
by means of four bolts c and are kept at suitable distances from each other by
washers D.
The rings fare of different breadths so that a hemispherical recess is formed within
the series of rings. The compass is suspended in the said recess as in the previous
modification and the whole is fastened in a binnacle.
The number of discs and rings as well as of the cups or basins or other encircling
plates can be varied as desired and also the forms and sizes of the said plates. The
invention consists especially in placing suitable metal between the magnetic needle
and the object or material which affects it magnetically.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed as communicated to me by my
foreign correspondent I declare that what I claim is :-
The improvements in mariners' compasses, which consists in surrounding or
encircling the same with one or more plates or layers of soft iron or other suitable
metal, for the purpose specified.
Dated this 23rd day of June 1897.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.