An Improvement in Balances.
Year: 1892

page_text: Date of Application, 22nd Oct., 1892
Complete Specification Left, 14th July, 1893-Accepted, 19th Aug., 1893
PROVISIONAL SPECIFICATION.
An Improvement in Balances.
I, HENRY SHEEHY KEATING, of the Inner Temple (12, Kings Bench Walk)
in the County of London, Barrister at Law, and of 11 Prince's Gardens, South
Kensington, in the County of Middlesex, do hereby declare the nature of this
invention to be as follows
My invention relates to a construction of balance whereby very delicate weighing
can be effected. A lever or beam is pivotted, preferably on knife edges, and from
one end a weight projects outwards and downwards so that its centre of gravity is
in a line from the pivots making an angle, which may be about 45°, with a vertical
line through the pivots. The other arm of the beam has suspended from it or
attached to it a scale or receptacle to contain the objects to be weighed. On the
beam I fix a vessel from the lower part of which a glass tube extends some distance
along the beam then bends upwards and returns at a somewhat higher level to the
vessel.
Along these lines of tube is fixed a graduated scale or two of these one for
each line of tube. The vessel, which is preferably of glass having the two
lines of tube hermetically scaled to it, is charged with a quantity of liquid,
preferably coloured, and the parts are so adjusted that, when no object is being
weighed, the liquid reaches to some point in the lower line of tube.
When an object is placed on the scale or in the receptacle to be weighed, this
arm of the beam slightly descends raising the weight on the other end until the
horizontal distance of its centre of gravity from the vertical line through the
pivots gives such leverage as to balance the object which is being weighed. By
this movement of the beam the liquid is made to flow a certain distance along
the lower line of tube, and afterwards, when more weight is added, back along
the other line of tube, thus, with a properly adjusted scale, giving a visible
indication of the weight of the object. The stand for the pivots is preferably
arranged so that it can be packed in compact and readily portable form along with
the beam.
The counter weight, pivots and scale or receptacle for the objects to be weighed
may be shifted into various positions to adapt the balance for various ranges of
weights.
Dated this 22nd day of October 1892.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improvement in Balances.
I, HENRY SHEEHY Keating, of the Inner Temple (12 Kings Bench Walk)
in the County of London, Barrister at Law, and of 11 Princes Gardens, South
Kensington, 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 :-
My invention relates to a construction of balance whereby very delicate weighing
can be effected as I shall describe referring to the accompanying drawing which
is a side view of a balance according to my invention. A lever or beam A is
pivotted preferably on knife edges B, and from one end a weight C projects
outwards and downwards so that its centre of gravity is in a line from the pivots
[Price Sa.l

page_text: making an angle, which may be about 45° with a vertical line through the pivots.
The position of the weight C may preferably be adjusted in the manner shewn 'in
the drawing by screwing it up or down a screwed stem D, its edge pointing to
a graduated scale S. The other arm of the beam A has suspended from it or
attached to it a scale or receptacle E to contain the objects to be weighed.
On the beam A I 'fix'a vessel F from the lower part of which a glass tube G
extends some distance along the beam A then bends upwards and returns at a
somewhat higher level to the vessel F.
Along the lines of the tube G is fixed a graduated scale or two of these H
and K, one for each line of the tube G. The vessel F which is preferably of
glass having the two lines of the tube G hermetically scaled to it, is charged
with a quantity of liquid, preferably coloured and the parts are so adjusted that,
when no object is being weighed at E, the liquid reaches to some zero point such
as L in the lower line of the tube G.
When an object is placed on the scale or in the receptacle E to be weighed, this
arm of the beam slightly descends raising the weight C on the other end until
the horizontal distance of its centre of gravity from the vertical line through
the pivots B gives such leverage as to balance the object which is being weighed.
By this movement of the beam A the liquid is made to flow a certain distance
along the lower line of tube and afterwards, when more weight is added, back
along the other line of tube, thus, with properly adjusted scales, giving a visible
indication of the weight of the object. In some cases, instead of making the
upper limb of the tube G return to the vessel F, the lower limb may be extended
and sealed at its end The stand M for the pivots is preferably arranged so that
it can be packed in a compact and readily portable form.
The counter weight, pivots and scale or receptacle for the objects to be weighed
may be shifted into various positions to adapt the balance for various ranges of
weights. Also the tube G may be curved in such a manner that equal differences
of weight may be indicated by equal divisions of the scale.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
A balance consisting of a pivotted beam having its one virtual arm carrying a
weight inclined downwards, its other arm arranged to carry the object to be
weighed, and having fixed on the beam a vessel and tube holding liquid with scales
to register the position of liquid in the tube, substantially as and for the purpose.
set forth.
Dated this 14th day of July 1893.
ABEL & IMRAY,
Agents for the Applicant.