An Appliance for Sampling and Testing the Heat of Grain or like Substances in Bulk.
Year: 1899

page_text: Date of Application, 16th Dec., 1899
Complete Specification Left, 5th Sept, 1900-Accepted, 27th Oct., 1900
DIONAL DITUITIVATION.
An Appliance for Sampling and Testing the Heat of Grain or like
Substances in Bulk.
DAVID FRANCIS ALEXANDER, Warehousekeeper's Foreman, 18, Thomas Street,
Stokes Croft, Bristol, do hereby declare the nature of this invention to be as
follows:
:―
A metal tube shaped cup, pointed at the bottom, the upper end being open with
shouldered edge to receive the cover, which is attached by three chains of suffi-
cient length to allow its lifting to admit the grain or substance filling the cup.
Attached to the inside of the cover is a self registering thermometer, which
hangs perpendicularly inside the cup.
The handle is formed of rods or tube connected by means of screwed ends and
finally screwed into the top of the cover, so that when the spear is driven
perpendicularly down into the bulk, the pressure keeps the cover closed, forming
a protection for the thermometer. On pulling up the spear the cover lifts to the
extent of the loose chains and allows the grain to fall into the cup and around the
thermometer, thus registering the temperature of any part of the bulk sampled.
Dated this 15th day of December 1899.
An Appliance for Sampling and Testing the Heat of Grain or like
Substances in Bulk.
I, DAVID FRANCIS ALEXANDER, of No. 18, Thomas Street, Stokes Croft, in the
City and County of Bristol, Warehouseman, 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 an appliance for sampling and testing the heat of
grain or like substances in bulk.
The object and result of my invention is to enable a sample of grain or like
substance to be taken at any required depth from the surface, and at the same
time to register the temperature of the bulk of the substance at that depth.
I employ a metal tubed shaped cup the bottom of which is pointed and forms
a cone. To the open end of this cup a metal cover is fitted and attached to the cup
with chains of a suitable length. Inside this cover a support is fixed for a register-
ing thermometer which is attached or removed by means of a spring hook or
swivel. The shaft or handle is formed of metal tubes, in sections of equal length,
connected together by screwed couplings, as many sections being used as may be
necessary to reach the depth desired.

page_text: The accompanying drawings and the following description will enable my
invention to be more clearly understood.
When the appliance, closed as shewn in Fig. 1, is driven perpendicularly down
into the grain or like substance the pressure which is necessarily employed keeps
the cover tightly closed on the top of the cup, forming a secure and complete
protection to the thermometer, Fig. 3, which is suspended inside. When the
number of sections forming the shaft or handle indicate that the required depth
has been reached the shaft is withdrawn sufficiently to raise the loose cover to
the extent of the chains, and it then appears as shewn in Fig. 2, with this
addition that the thermometer shewn in Fig. 3 is suspended from the ring support
under the cover shewn in Fig. 2. This opening of the metal cup at the depth
required allows the grain or like substance to fall into it and around the
thermometer which registers the temperature there accordingly, and on the entire
withdrawal of the appliance a sample of the grain or like substance is contained in
the metal cup.
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:-
In sampling and testing the heat of grain or like substances in bulk at any
required depth the employment of a metal tubular shaped cup with pointed conical
bottom and loose cover attached to the cup by chains as shewn.
Dated this 4th day of September 1900.
DAVID FRANCIS ALEXANDER.
c/o Roger Ford,
King Street Hall, Bristol.