IMPROVEMENTS IN SOUNDING APPARATUS to be as follows, that to
Year: 1885

page_text: I, JAMES BALLANTYNE HANNAY, of Cove Castle, Loch Long, in the County of
Dumbarton, North Britain, Chemist, do hereby declare the nature of my said
invention for "IMPROVEMENTS IN SOUNDING APPARATUS to be as follows, that
is to say :-
"
My said Invention relates to sounding apparatus of the kind described in the
Specification of my Patent N° 5256 of 1883, but is also in part applicable to other
sounding apparatus.
One of my present improvements consists in transmitting the movement of the
barometric vessel to the index in a better and more direct manner.
"
The upper arm of the bellcrank which transmits the movements of the barometric
vessel has spur teeth on its upper end which gear directly with a pinion on the
index spindle, this spindle being at right angles to the long axis of the instrument
and the dial being on the side. The dial and index and accessory details are fitted
in and upon a small frame which is separately fixed in the main frame of the
instrument, so that the parts can be removed altogether for examination or repair.
By my present Invention, instead of using an ordinary cord, line, or single wire,
for lowering and raising the sounding instrument, I employ a specially prepared
cord made of extremely fine wire and which possesses very great strength combined
with flexibility. This wire cord is made of copper or an alloy of copper, preference
being given to what is known as "phosphor bronze." The numbers of wires and
strands may be varied but I have found a cord made by twisting together three
strands each consisting of three wires to answer very satisfactorily.
EDMUND HUNT,
Applicant's Agent.

page_text: Improvements in Sounding Apparatus.
I, JAMES BALLANTYNE HANNAY, of Cove Castle, Loch Long, in the County of
Dumbarton, North Britain, Chemist, 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, that is to say :-
My Invention relates to sounding apparatus of the kind described in the
Specification of my Patent No 5256 of 1883, but is also in part applicable to other
sounding apparatus.
One of my present improvements consists in transmitting the movement of the
barometric vessel to the index in a better and more direct manner. The upper arm
of the bellcrank which transmits the movements of the barometric vessel has spur
teeth on its upper end which gear directly with a pinion on the index spindle,
this spindle being at right angles to the long axis of the instrument and the dial
being on the side. The dial and index and accessory details are fitted in and upon
a small frame which is separately fixed in the main frame of the instrument, so
that the parts can be removed altogether for examination or repair.
By my present Invention, instead of using an ordinary cord, line, or single wire,
for lowering and raising the sounding instrument, I employ a specially prepared
cord made of extremely fine wire and which possesses very great strength combined
with flexibility. This wire cord is made of copper or an alloy of copper, preference
being given to what is known as "phosphor bronze." The numbers of wires and
strands may be varied but I have found a cord made by twisting together three
strands each consisting of three wires to answer very satisfactorily.
And in order that my said Invention and the manner of performing the same
may be properly understood I hereunto append a sheet of explanatory drawings to
be hereinafter referred to and representing my improved sounding apparatus.
Figure, 1, on the accompanying sheet of drawings represents the case. Figure, 2,
is a cross section of a part of the apparatus and figure, 3, is a back elevation, partly
in section, of the indicating mechanism. Figure, 4, shows the case, containing the
apparatus in vertical section, the apparatus itself being in side elevation.
The upper and longer arm, E, of the bellcrank lever, C, E, (shown in figures, 3,
and 4,) which transmits the movements of the barometric vessel, B, has spur teeth
on its upper end gearing directly with a pinion, H, on a spindle, J, which is at
right angles to the long axis of the instrument and which works in bearings,
in the dial, D, and a small frame, F¹, fixed in the main frame, F, the dial, D, being
on the side of the instrument and not on the top as described in my former
Specification hereinbefore referred to. The small frame, F¹, fixed in the upper end
of the frame, F, carries the graduated dial, D, and accessory details and it can be
removed so that the parts can be examined or repaired.
The cylindrical case, W, for containing the apparatus has an eye or ring, Y, at
the bottom to enable a weight to be attached when necessary. The upper part of
this case, W, is made thicker than the part surrounding the vessel, B, and has &
circular opening made in it corresponding to the dial, D, which faces this opening

page_text: when the apparatus is in the case, W. A sleeve, I, fits tightly over this thicker
part and is also made with a circular opening in it corresponding to the dial, D ;
and when it is desired to see the dial, D, the sleeve, I, is turned round until the
opening in it coincides with that in the case, W, but when the instrument is about
to be used the sleeve, I is turned round so as to cover the opening in the case, W.
A pin, M, projects from the centre of the cap, I, which is screwed into the top of
the case, W. This pin M, bears on the top of the framing, F, when the cap, Z, is
screwed down thereby holding the instrument firmly in the case, W.
The parts of my improved apparatus not herein before particularly described or
referred to are to be understood to be the same as described in my earlier
Specification hereinbefore referred to, and are marked with the same reference
numerals.
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
1. The improved mode of arranging or combining together the parts of the
sounding apparatus substantially as hereinbefore described.
2. The placing of the dial at the side of the case with the index spindle placed
transversely and directly acted on by a bellcrank lever connected to the baroinetric
vessel substantially as herein before described.
3.The employment of wire cord for lowering and raising sounding instruments
substantially as hereinbefore described.
Dated this second day of Nazzambar 100%
EDMUND HUNT,
Applicant's Agent.