Improvements in Hygrometers or Instruments for Indicating the Presence of Moisture in the Atmosphere or Air.
Year: 1894

page_text: Date of Application, 20th Mar., 1894
Complete Specification Left, 19th July, 1894-Accepted, 29th Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in Hygrometers or Instruments for Indicating the
Presence of Moisture in the Atmosphere or Air.
I, LEONARD TURNER 56 Russell Road Ipswich Engineer do hereby declare the
nature of this invention to be as follows:-
This invention relates to hygrometers or instruments for indicating the presence
of moisture in the atmosphere or air & consists of a wooden ring or semicircular
piece fixed at one end, the other being free to move. This semicircular piece of
wood has the grain of the wood running parallel with the axis of the semicircle or
ring and is secured by glue or such suitable means to another semicircular piece
or ring of a material not affected by moisture. The free ends of this composite
ring or semicircular piece are connected by means of a cord which passes over a
pulley to the indicating hand. This hand is connected to a pulley which is free to
rotate on a spindle and over which the cord aforesaid passes.
A weight is attached to the end of said cord for maintening the necessary amount
of friction between the cord and the pulley carrying the hand.
Instead of the cord aforesaid any well known arrangement of levers may be
employed to connected the free end of the composited ring to the indicating hand.
The constraction or expansion of the composite ring, according to the amount of
moisture in the atmospher or air will cause the indicating hand to move and so
give indications which may be employed in forecasting the weather.
A free hand is also carried upon the spindle for use in indicating the position
at the desired times of the indicating being set by the operator as required.
Dated this 20th day of March 1894
E. EATON,
Agent for Applicant.
Improvements in Hygrometers or Instruments for Indicating the
Presence of Moisture in the Atmosphere or Air.
I, LEONARD TURNER 56 Russell Road Ipswich Engineer 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 hygrometers or instruments for indicating the presence.
of moisture in the atmosphere or air and the same is carried out as follows
reference being had to the annexed drawing in which
Figure 1. is a front elevation of my invention.
Figure 2. vertical section through same.
a is a bent or curved piece of wood fixed at 6 to the case c the other end being
free to move and attached to the cord d which passes over the pulley or bearing e
carrying the hand or pointer f. The other end of this cord d'is attached to the
weight g.
h is a piece of material not affected by moisture which is attached by
any suitable means such as glue to the wooden part a the grain of which runs
parallel with the axis of same. is a pulley over which said cord passes. j is a
hand or pointer carried on the sleeve k & free to be rotated upon the bearing or
spindle. The contraction or expansion of the composite parts a & h, will,
according to the amount of moisture in the surrounding atmosphere or air, cause
1 Price 8d

page_text: the hand or pointer fto move & so the movement of same may be employed to
forecast the weather. The hand j may be set as desired by the operator.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be carried out, I declare, that what
I claim is :-
1. The combined construction and arrangement of the various parts substantially
as described.
2. In hygrometers or instruments for indicating atmospheric moisture, a bent or
curved composite piece, consisting of a piece of wood having the grain of the wood
parallel to the central axis of the same, to which is secured a strip or piece of
material not affected by atmospheric moisture, one end of said composite piece
being fixed and the other end attached to a cord, passing over a sleeve or pulley
carrying a hand or pointer, a weight attached to said cord, a sleeve carrying a hand
or pointer free to be set as desired, substantially as described.
Dated this 10th do of Iul 1001
E. EATON,
Agent for Applicant.