IMPROVEMENTS IN APPARATUS FOR BEATING EGGS, AND FOR MIXING OR AGITATING OTHER FLUIDS, COMPOUNDS, OR MATTERS
Year: 1861

page_text: LETTERS PATENT to Thomas Bentley, of Margate, in the County of
Kent, Ironmonger, for the Invention of "IMPROVEMENTS IN APPARATUS
FOR BEATING EGGS, AND FOR MIXING OR AGITATING OTHER FLUIDS, COMPOUNDS,
OR MATTERS."
Sealed the 21st March 1862, and dated the 26th September 1861.
PROVISIONAL SPECIFICATION left by the said Thomas Bentley at the
Office of the Commissioners of Patents, with his Petition, on the
26th September 1861.
I, THOMAS BENTLEY, of Margate, in the County of Kent, Ironmonger, do
bereby declare the nature of the Invention for " IMPROVEMENTS IN APPARATUS
FOR BEATING EGGS, AND FOR MIXING OR AGITATING OTHER FLUIDS, COMPOUNDS, OR
MATTERS," to be as follows:-
My Invention relates to improvements in that description of apparatus for
beating eggs or other matters known as the Archimedian egg beater," which
consists of an axis on which a spiral or screw thread is formed, the lower end
having an open wire frame or beaters attached thereto, the whole being caused
to rotate in opposite directions alternately by moving a sliding socket con-
taining a pin, which enters between the threads of the spiral, or screw up and
down thereon, the upper end of the axis being held whilst the lower end rests
on the bottom of the vessel containing the eggs or other matters to be beat or

page_text: stirred; and my Invention consists in forming the Archimedian screw or spiral
upon a tube to which the rotating beaters are attached; this tube and
beaters being caused to rotate upon and around a fixed central axis to the
lower end of which a fixed frame with stationary arms is attached, which
may intersect or surround the arms of the rotating beaters. Rotatory motion
is communicated alternately in opposite directions to the beaters by a sliding
socket containing a pin (which enters between the threads of the screw on the
hollow axis), which is moved up and down whilst the central axis is held
stationary by hand or in a suitable frame at the time the beaters are immersed
in the eggs, batter, or other matters to be stirred or agitated.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Bentley in the Great Seal Patent Office on the
26th March 1862.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
BENTLEY, of Margate, in the County of Kent, Ironmonger, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-sixth day of September, in the year of our
Lord One thousand eight hundred and sixty-one, in the twenty-fifth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Thomas Bentley, Her special licence that I, the said Thomas
Bentley, my executors, administrators, and assigns, or such others as J,
the said Thomas Bentley, my executors, administrators, and assigns, should
at any time agree with, and no others, from time to time and at all
times thereafter during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
IMPROVEMENTS IN APPARATUS FOR BEATING EGGS, AND FOR MIXING OR AGITATING
OTHER FLUIDS, COMPOUNDS, OR MATTERS," upon the condition (amongst others)
that I, the said Thomas Bentley, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed in the
Great Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Thomas Bentley, do hereby declare
the nature of the said Invention, and in what manner the same is to be

page_text: opposite directions, thus causing the arms or beaters 6¹ to rotate, and in doing
so to intersect the stationary arms of the open frame a. The arrangement of
the frames a¹ and 6 may, if desired, be varied, and a supporting arm or frame
may be attached to the vessel in which the matters are stirred or beaten, in
order to support the vertical axis a, whilst motion is communicated to the
hollow axis band its open frame b', and in place of combining the parts as
shewn, the stationary and rotatory frames may be separate from each other, and
only be combined when in use.
Apparatus may also be suitably constructed of wood, earthenware, or other
material, and arranged in accordance with my Invention on a larger scale
suitable for churning or for other similar purposes.
In witness whereof, I, the said Thomas Bentley, have hereunto set my
hand and seal, this Twenty-fourth day of March, in the year of our
Lord One thousand eight hundred and sixty-two.