Improvements in Hydrostatic Weighing Apparatus.
Year: 1890

page_text: Date of Application, 29th Oct., 1890
Complete Specification Left, 4th July, 1891-Accepted, 15th Aug., 1891
PROVISIONAL SPECIFICATION.
Improvements in Hydrostatic Weighing Apparatus.
I FREDERICK NUNNS of Shaw Syke, Halifax in the County of York,
Mechanical Engineer, do hereby declare the nature of this invention to be as
follows:-
:-
I construct my apparatus with a shallow trough, made of either wood or metal,
and lined with lead or zinc or other suitable material, over this trough and secured
to the top edge of the trough with a metallic rim is a flexible cover made preferably
of indiarubber, this metallic rim has preferably four lugs formed upon it, one at
each corner, fitted with studs which act as pivots for two balancing bars, these
balancing bars have two arms each, the outer ends of these arms stand in towards
the centre of a table, one fitting into the other; this table which is made of either
wood or metal is placed upon the indiarubber or other flexible cover, and is a little
less than the trough. Formed upon this table also are four lugs, through which
and the balance arms pass screwed studs, thus keeping the table in a proper
position and balance, so that whatever position on the table, the article or liquid to
De weighed is placed, the proper weight or measure is given.
A small pipe is attached to the bottom edge of trough, the other end being
attached preferably to a brass union, screwed to arm or bracket upon the trough,
within this union is fixed a metallic tube in which is placed a glass tube;
attached to and sliding upon the outside of this metallic tube is a graduated
rod, scale, or indicator, which is adjusted upon the tube by means of a
thumbscrew.
The action is as follows: The trough is filled preferably with filtered water
after which the slide rod or indicator is adjusted, so that the water in the tube
is flush with the zero line of the indicator after which the barrel or other vessel
to be weighed or measured is placed upon the table, which forces the water up the
glass tube giving the correct weight or measure of the solids or liquid being so
weighed or measured.
For measuring liquids the trough is preferably filled with the same liquid that is
being weighed or measured, or its equivalent.
1000
JOHN E. WALSH,
Waterhouse Chambers, Crossley Street, Halifax,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Hydrostatic Weighing Apparatus.
I, FREDERICK NUNNS, of Shaw Syke, Halifax, in the County of York,
Mechanical 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. :-
The object of this invention is to construct a hydrostatic weighing and measuring
machine so as to weigh various liquids by the use of filtered water; and to measure
the quantity of liquids contained in any vessel, with the use of the same liquid, or
(in case of liquids heavier than water) by the use of water with a little salt or other
similar substance added, to bring it to the same gravity as the liquid to be weighed
or measured.

page_text: DESCRIPTION OF DRAWINGS.
Fig. 1 is a plan view of my improved weighing and measuring apparatus.
Fig. 2 is a side elevation of Fig. 1.
Fig. 3 is a sectional elevation of Fig. 1 through the line A. B.
I construct my apparatus with a shallow trough C, made of either wood or
metal, and lined with lead or zinc, or other suitable material; over this trough and
secured to the top edge of the trough C with a metallic rim D, is a flexible cover E,
preferably made of indiarubber.
This metallic rim has preferably four lugs D¹ formed upon it, one at each corner,
fitted with studs D, which act as pivots for two balancing bars F, these balancing
bars have each two arms G, G, the outer ends of these arms stand in towards the
centre of a table H one fitting into the other, this table H, which is made of either
wood or metal, is placed upon the indiarubber or other flexible cover E, and is
also a little less than the trough C.
Formed upon this table also, are preferably four lugs J, through which and
the balance arms, pass screwed studs J', thus keeping the table in a proper
position or balance, so that in whatever position on the table the article to be
weighed or measured is placed, the weight bears upon the whole surface of the
cover E.
A small pipe K is attached to the bottom of trough C, the other end being
attached preferably to a brass union L, in this union is fixed (preferably in a
vertical position) a metallic tube M, in which is a glass tube N; attached and
sliding upon the outside of this metallic tube is a graduated rod, scale, or indicator O,
indicating pounds or gallons as required; this indicator is adjusted upon the tube
by means of a thumbscrew P.
Upon using this apparatus for weighing, the trough is filled with preferably
filtered water, after which the slide rod or indicator O is adjusted, so that the
water in the glass tube is flush with the zero line of the indicator after which
the barrel or other vessel to be weighed is placed upon the table H, which depresses
the flexible cover E, thereby forcing the water or other liquid up the glass tube,
giving by means of the indicator the correct weight of the liquid contained in such
barrel or vessel.
For measuring liquids, the trough is preferably filled with the same liquid or its
equivalent contained in the barrel or vessel to be measured, when the number of
gallons or half gallons contained in the barrel or vessel may be ascertained on
reference to the indicator in the manner before described.
Having now particularly described and ascertained the nature of this inven
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The use and employment of a hydrostatic apparatus for weighing or measuring
liquids, contained in vessels, such as shown and described.
2. The use and employment of a trough C, flexible cover E, pivotted arms G
and G, table H, pipe K, tubes M and N, and indicator O, in the manner and for
the purposes such as shown and described.
Dated this Fourth day of July 1891.
JOHN E. WALSH,
Crossley Street, Halifax, Agent for the Applicant.