An Improved Means of Testing the Quality of Milk.
Year: 1892

page_text: Date of Application, 15th Dec., 1892
Complete Specification Left, 14th Oct., 1893-Accepted, 9th Dec., 1893
PROVISIONAL SPECIFICATION.
An Improved Means of Testing the Quality of Milk.
WILLIAM BELGROVE Dairyman 482 Harrow Road London W. do hereby
declare the nature of this invention to be as follows:-
My invention has for its object a novel and improved means of testing the quality
of milk.
In carrying my invention into practice I obtain a glass jug such as at present in
use for ordinary purposes and engrave a vertical line upon one side of the jug and
from this line I engrave four horizontal line at equal distances apart marked
and 1 pint and immediately under each of these four lines I engrave three
horizontal lines marked the first of the three "average" second of the three
"good" and the third of the three "very good" in each case.
Supposing for instance that one pint of milk is placed in the testing glass or jug
and allowed to stand the cream upon the milk will sink to one of the three testing
lines. If to the first line, the milk is of average quality, if to the second line of
good quality and if to the third line of very good quality-and the same applies to
the & pint measurement.
Although illustrate my invention by a jug of one pint capacity 1 do not limit
myself to this particular size but I may increase the size to any convenient capacity
from a pint upwards..
The ordinary gauge glasses at present in use are only understood by dairymen
and others engaged in the trade but to the uninitiated they are useless, but by my
invention any ordinary person will be enabled to test the milk they are receiving
from the dairyman and thus my invention will be the means of checking fraud
which may be practiced unknown both to the consumer and the dairyman.
.
My invention will also enable consumers to test the quality of milk supplied by
different dairymen and thus be in a position to deal at the dairy supplying the best
quality of milk.
Dated this the 15th day of December 1892.
WILLIAM BELGROVE.
COMPLETE SPECIFICATION.
An Improved Means of Testing the Quality of Milk.
WILLIAM BELGROVE 482, Harrow Road, London, W. Dairyman, 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 has for its object a novel and improved means of testing the
quality of milk. In carrying my invention into practice I obtain a glass jug such
as at present in use for ordinary purposes and engrave a vertical line upon one side,
and from this line I engrave four horizontal lines at equal distances apart marked
...and 1 pint; and immediately under each of these four lines I engrave three
horizontal lines marked :-the first of the three "average," the second of the three,
good," and the third of the three "very good," in each case. Supposing for
instance that one pint of milk is placed in the testing glass or jug and allowed to
stand until the cream has set the quality of the milk will be shown by the thickness
of cream being shewn at one of the three testing lines. If to the first line the milk
is of "average" quality, if to the second line of "good" quality and if to the third
line of very good quality. The same applies to the .& pint measurements, the
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page_text: width of the jug being taken into consideration and allowed for in placing the
quality marks thus the narrow part of the jug the marks are wider apart and
the wide part of the jug the marks are closer together & so in proportion at all
measurements the marks being fixed by a percentage of cream to a given quantity
of milk.
By reference to the accompanying drawing it will be seen that I shew a jug
giving and 1 pint measurements and underneath the measurement marks in
each case are the three testing marks drawn horizontally from the vertical line.
The line marked "A" is the "average" mark "B" is "good" mark "C" is the
very good "mark in each measurement.
<6
Although illustrate my invention by a jug of one pint capacity I do not limit
myself to this particular size but I may increase the size to any convenient capacity
from pint upwards.
The ordinary gauge glasses at present in use are only understood by dairymen
and others engaged in the trade but to the uninitiated they are useless but by my
invention any ordinary person will be enabled to test the milk they are receiving
from the dairyman and thus my invention will be the means of checking fraud
which may be practiced by the dairymans servants at present unknown both to the
consumer and the dairyman. My invention will also enable consumers to test the
quality of milk supplied by different dairymen and thus be in a position to deal
at the dairy supplying the best quality of milk. I do not claim the measurements
marks alone.
Having now particularly described and ascertained the nature of my invention
] claim
1st. A novel means of testing the quality of milk by means of a glass jug or
other utensel marked or engraved as shewn in the drawing substantially as
specified.
2nd. The manufacture of an apparatus for testing milk as specified.
Dated this 14th day of October 1893.
WILLIAM BELGROVE.