CERTAIN IMPROVEMENTS IN MACHINERY OR APPARATUS FOR COMPUTING OR RECKONING QUANTITIES AND AMOUNTS
Year: 1866

page_text: LETTERS PATENT to Thomas Wallwork, of Newton Heath, in the County
of Lancaster, Clerk, for the Invention of "CERTAIN IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR COMPUTING OR RECKONING QUANTITIES AND
AMOUNTS."
Sealed, the 4th September 1866, and dated the 10th March 1866.
PROVISIONAL SPECIFICATION left by the said Thomas Wallwork at the
Office of the Commissioners of Patents, with his Petition, on the 10th
March 1866:
I, THOMAS WALLWORK, of Newton Heath, in the County of Lancaster,
Clerk, do hereby declare the nature of the said Invention for "CERTAIN
IMPROVEMENTS IN MACHINERY OR APPARATUS FOR COMPUTING OR RECKONING
QUANTITIES AND AMOUNTS," to be as follows:-
My Invention is designed for the purpose of indicating and showing the
products arising from the multiplication of any two sets of numerals. together,
for which the tables and instrument may be arranged. The apparatus
consists of a disc enclosed between two outer plates, and mounted on a

page_text: central shaft or axis, at each end of which a finger or pointer and a handle
is secured, by which the fingers are turned to point to any multiplying
numerals, and which also turns the internal disc. In the outer plate are two
slots made from the periphery towards the centre, down one side of each of
which slots are marked the "multiplicands" or numbers to be multiplied,
and round the outer edge of each of these plates the "multipliers" are
arranged. On both faces of the internal discs columns of numerals are
marked, which have been previously calculated and ascertained, and which
represent the product of multiplication between the numerals on the edge of
the plates or multipliers and the numerals down the slots or multiplicands,
thus when one of the pointers is turned to any "multiplier" on the edge of
the plate, the disc is also turned, and the product appears through the slot
opposite to the multiplicand on the side of the slot. This combination and
arrangement of apparatus may be mounted on a vertical spindle, so as to turn
round to read both sides, and a series of the dials and plates may be arranged
behind each other, and adapted and calculated for weights, measures, money,
interest, or other tables, and where a series are employed, each apparatus
may be made to fall into a horizontal position to clear the others, so that both
sides may be legible by supporting the spindles on pivots and making a slot
in the framing.
SPECIFICATION in pursuance of the conditions of the Letters.Patent, filed
by the said Thomas Wallwork in the Great Seal Patent Office on the
8th September 1866..
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
"WALLWORK, of Newton Heath, in the County of Lancaster, Clerk, send
'greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Tenth day of March, in the year of our Lord One
thousand eight hundred and sixty-six, in the twenty-ninth year of Her reign,
did, for Herself; Her heirs and successors, give and grant unto me, the said
Thomas Wallwork, Her special license that I, the said Thomas Wallwork, my
executors, administrators, and assigns, or such others as I, the said Thomas
Wallwork, 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,

page_text: and vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "CERTAIN IMPROVEMENTS
IN MACHINERY OR APPARATUS FOR COMPUTING OR RECKONING QUANTITIES AND
"AMOUNTS," upon the condition (amongst others) that I, the said Thomas
Wallwork, my executors or administrators, by an instrument 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 Wallwork, do hereby declare
the nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement and accompanying Drawings (that is to say):
My Invention is designed for the purpose of indicating and shewing the
products arising from the multiplication of any two sets of numerals together
for which the tables and instrument may be arranged. The apparatus
consists of a disc enclosed between two outer plates, and mounted on a
central shaft or axis, at each end of which a finger or pointer and a bandle is
secured, by which the fingers are turned to point to any multiplying numerals,
and which also turns the internal disc. In the outer plates are two slots
made from the periphery towards the centre, down one side of each of which
slots are made the "multiplicands" or numbers to be multiplied, and round
the outer edge of each of these plates the "multipliers "-are arranged. On
both faces of the internal disc columns of numerals are marked which have
been previously calculated and ascertained, and which represent the product
of multiplication between the numerals on the edge of the plates or multi-
pliers and the numerals down the slots or multiplicands, thus when one of the
pointers is turned to any "multiplier " on the edge of the plate the disc is
also turned, and the product appears through the slot opposite to the multi-
plicand on the side of the slot. This combination and arrangement of
apparatus may be-mounted on a vertical spindle, so as to turn round to read
both sides, and a series of dials and plates may be arranged behind each other,
aud adapted and calculated for weights, measures, money, interest, or
other tables, and where a series are employed, each apparatus may be
made to fall into a horizontal position to clear the others, so that, both sides
may be legible by supporting the spindles on pivots and inaking a slot in the
framing

page_text: In order that the Invention may be better understood and explained in
detail I have hereunto attached a Sheet of Drawings made upon a scale of
about three inches to the foot.
Fig. 1 represents a front elevation of the apparatus for ascertaining and
indicating the product or amount arising from the multiplication of any two
sets of numerals together; this view also shews the arrangement and position
of the aperture in the outer plate or cover through which one line or
serics of numerals appear, which are marked on the edge of the aperture
and on the outer plate multiplied by each other; Fig. 2 represents the
internal disc detached, the arrangement of the numerals being partly shewn
in dotted lines; Fig. 3 represents a vertical section of the apparatus; Fig. 4
represents the front elevation of a similar apparatus arranged in sets of
four or more, in order that amounts or products in money, interest, weight, or
measure may be ascertained and indicated, each disc being duly calculated
and arranged in accordance, and the amount may be ascertained from any
particular disc by causing such disc to assume the horizontal position shewn ;.
Fig. 5 represents a side elevation of a number of discs arranged for the
purpose aforesaid.
,
In Figs. 1, 2, 3, 4, and 5, a, a, is the stand or support of the plates and
discs, in which such plates and dises may be arranged to indicate on both
sides, and may be turned upon the shaft or axis a¹, as seen in Fig. 1, or any
one of the numbers, as seen in Figs. 4 and 5, may be withdrawn from the
stand and caused to assume a horizontal position in the outer plates b, b, which
enclose the internal disc; slots or springs c, c, are formed, which extend from
the periphery towards the centre; down one side d' of each of these slots are
marked the "multiplicands" or numbers to be multiplied, and round the outer
edge of each of these plates the multipliers are arranged. On both faces of
the internal disc columns of numerals which have been previously calculated
are marked, which represent the product of multiplication between the
numerals on the edge of the plates or multipliers and the numerals down the
sides of the apertures or multiplicands.. Thus when the pointer-e is turned to
any multiplier on the edge of the plate, the internal disc is. also turned, being
mounted on the same shaft f, and the numerals which appear through the
opening opposite to or in line with each multiplicand represents the product
of the multiplication of one of the other:.
Having now described the nature of the said Invention, together with the
method of carrying the same into practical effect, I wish it to be distinctly
understood that I claim the novelconstruction, combination, and arrangement

page_text: of the apparatus, as herein-before described, set forth, and fully illustrated
in the Drawings attached.
In witness whereof, I, the said Thomas Wallwork, have hereunto set my
hand and seal, this Sixth day of September, in the year of our Lord
One thousand eight hundred and sixty-six.
THOMAS WALLWORK. (L.S.)