Improvements in the Manufacture of Bread and Biscuits.
Year: 1889

page_text: Date of Application, 2nd Feb., 1889
Complete Specification Left, 23rd Sept., 1889-Accepted, 26th Oct., 1889
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Bread and Biscuits.
I, DAVID ESPLIN THOMSON of Gillespie Street Works, Gilmore Place, Edinburgh,
in the County of Midlothian, North Britain, Engineer do hereby declare the nature of
this invention to be as follows:-
The improvements constituting the system to be employed in the first stages of the
manufacture of bread and biscuits according to this Invention consist in the following
combination, that is to say, the flour to be used is fed in bulk into hoppers arranged
in the top of a building from which it is discharged in any required proportions
according to which it is to be mixed by feeding rollers into one or more screw creepers
leading into a chamber from which the mixed flour is led by an elevator or its equivalent
to a sifting machine. From the sifting machine the fine flour and impurities pass out
by different exits, the flour going into a screw creeper from which it is fed to other
hoppers in the sifted and mixed condition wherein it is contained in bulk. From these
last mentioned hoppers the flour is discharged by measuring rollers to other screw
creepers and thence to the weighing machines. After being weighed in the weighing
machines the weighed quantities of flour are discharged into the dough mixing
machines and the weight is registered by an automatic counter.
JOHN
LIDDLE,
154, St. Vincent Street, Glasgow, Petitioner's Agent.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Bread and Biscuits.
I, DAVID ESPLIN THOMSON, of Gillespie Street Works, Gilmore Place, Edinburgh,
in the County of Midlothian, North Britain, 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 improvements constituting the system to be employed in the first stages of the
manufacture of bread and biscuits according to this Invention consist in the following
combination, that is to say, the flour to be used is fed in bulk into hoppers arranged
in the top of a building, from which it is discharged in any required proportions
according to which it is to be used, by feeding rollers into one or more screw creepers
leading into a chamber from which the mixed flour is led by an elevator or its
equivalent to a sifting machine. From the sifting machine the fine flour and
impurities pass out by different exits, the flour going into a screw creeper, from which
it is fed to other hoppers in the sifted and mixed condition wherein it is contained in
bulk. From these last-mentioned hoppers the flour is discharged by the measuring
rollers to other screw creepers, and thence to the weighing machines. After being
weighed in the weighing machines the weighed quantities of flour are discharged into
the dough mixing machines, and the weight is registered by an automatic counter.
In order that my Invention may be properly understood and readily carried into
effect, I have hereunto appended three explanatory sheets of drawings, in the several
Figures of which corresponding parts are marked with the same letters of reference.
Figure 1, sheet 1, is a longitudinal view of the arrangement for sifting and feeding
the flour to the weighing apparatus.
Figure 2, is an end elevation.
Figure 3, shews the system to be employed in a large factory for feeding flour to
the different floors.

page_text: In Figure 1, the flour is supplied in bulk into the hoppers A, from which it passes
on to the feeding rollers contained in the receptacles C. This feed rollers convey the
flour to the chamber D, in which there is a screw creeper revolving, which carries it
on to the elevator E. This elevator lifts the flour up to a sifting machine F. From
the sifting machine the impurities pass away into the tube G, from which they are
discharged, while the fine flour is carried along the conduit H, by the screw creeper I,
into the hoppers J. From these last-mentioned hoppers the flour is discharged by
measuring rollers to other screw creepers, and thence to the weighing machine.
Referring to Figures 3, and 4, I shall now explain how the system is adopted for a
large factory. The flour is supplied to the hopper A, on the top flat, from which it is
conveyed by means of the elevator E, to the sifting apparatus F, and then the fine
flour passes to the conduit H, from which it can be supplied to the hoppers J, in
connection with the weighing apparatus K.
The weight is registered by means of the automatic counter L.
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
claim is :―
The combination of the hopper A, elevator E, sifting apparatus F, discharge pipe G,
conduit H, storage hoppers J, and weighing apparatus K, arranged substantially as
described and shewn on the accompanying drawings.
Dated this 21st day of September 1889.
JOHN LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agent.