Year: 1895

page_text: Date of Application, 28th Feb., 1895
Complete Specification Left, 20th Dec., 1895-Accepted, 22nd Feb., 1896
A communication by DMUND SCHNEIDER, O 14 Innganser Strasse, Minnen,
in the Empire of Germany, Wood Dealer.
I, WILLIAM PHILLIPS THOMPSON F.C.S., M.I.M.E. of The Agency for
Foreign Patent Solicitors, 6 Lord Street, Liverpool and 6 Bank Street,
Manchester, both in the County of Lancaster, 118 New Street, Birmingham in
the County of Warwick and 31 High Holborn in the County of Middlesex,
Civil Engineer, do hereby declare the nature of this invention to bo as
follows:-
This invention has for its object to afford an easy and convenient means of
calculating or reading off cubic contents and the like. It consists essentially of a
roller which has a peculiarly and suitably arranged table gummed or glued on its
periphery, and revolves in a closed sheet metal case or box.
This sheet metal box or case, part of which may be opened and folded back like
alid if desired, has a long, longitudinal slot in the side, on which it is looked at, in
which slot the desired results appear whilst the one known factor is arranged
stationary under the actual corresponding result on the outside of the sheet metal
case, and the other known factor revolves simultaneously with the desired result in
the longitudinal slot.
The invention will now be described, taking as an example the calculation of
round wood.—
An exactly mounted roller of about 6 centimetres diameter revolves in a sheet
metal case and has a knob or thumb-piece at both ends, by which it may be
revolved. The periphery of the roller is covered with a suitable cubic table,
which preferably only contains such cubic contents as the inventor after many years'
practice in the wood trade has been led to regard as generally useful. The sheet
metal case or box has on the side which is inspected, a vertical or transverse slot,
which allows the desired lengths to be seen, and a horizontal or longitudinal
slot in which on the rotation of the roller the cubic contents for all diametora,
simultaneously appear over a diameter scale arranged there.
As other lengths and cubic contents cannot appear in the slot, an easy certain
and never failing calculation or reading off is thus possible, and the advantage is
attained that when the lengths are equal, the roller does not need to be revolved,
but all diameters with their corresponding cubic contents simultaneously appear
before the eye.
The speed of rotation of the roller is, owing to its small diameter, very great,
and experiments have shown an effective capability of over 1000 calculations in an
hour without causing the least difficulty or weariness; writing inny be done with
one hand and the apparatus revolved with the other.
Whilst for small tables a single roller anffices, it is necessary in other cases, in
order to retain the apparatus within handy limits, to employ two rollers, the table
being in the form of a band wound off one roller on to the other. The two rollers
are connected with one another by means of cog wheels or friction-gearing in order
to hold the paper tight during rotation.
In complicated apparatuses it may become necessary to employ four rollers
which are then connected in paire, and round which the paper is wound in the form

page_text: of an "S" (this is also possible when two rollers are employed) so that both sides
of the paper may be printed, and on each roller at the point of contact with the
sheet metal case the desired rows of figures will be visible through the above-
mentioned slot. It is a matter only of greater convenience whether the machine
lies horizontally or stands vertically.
The invention may be adapted as an interest calculating apparatus with (for
instance) 8 rates of interest with capital figures from (for instance in the case of
German coinage) a pfennig up to 100,000 marks, and from 1 up to 360 days,
arranged in the form of a cylinder, (the sheet metal case) which revolves on its
vertical axis on a foot or base block and contains in its interior two pairs of rollers
which again revolve on their own axes. The slots in the sheet metal case are in
this form of construction vertical so that the interest on 1000 marks, 2000 marks,
and so forth, or 100 marks, 200 marks, 300 marks and so forth, or 10 marks,
20 marks and so forth, or 1 mark, 2 marks, 3 marks, 4 marks and so forth, may be
immediately added therefrom, because they stand one under the other if the roller
be revolved to a suitable rate of interest and number of days. In order to facilitate
the reading off an arrangement is made, in this case, by which all the figures,
which appear in the slot, are each covered by a flap, each of which turns on a
hinge and may be opened separately. In order for instance to find the interest for
6483 marks at 4% for 165 days, it is merely necessary to revolve the roller which
contains the rate of interest at 4% to the column corresponding to 105 days, and
then to open the flaps for the figures 6000, 4000, 80 and 3 marks, and there appear then
successively one under the other the figures 165, 11, 2.20 and 08 marks, which
when added together mentally yield the sum of 178-28 marks. This method when
the apparatus herein before described is employed is characterized not only by
great rapidity but also great certainty.
Dated this 27th day of February 1895.
A communication by EDMUND SCHNEIDER, of 12 Plinganser Strasse, Munich,
in the Empire of Germany, Wood Denler.
I, WILLIAM PHILLIPS THOMPSON F.C.S., M.I.M.E., of The Agency for
Foreign Patent Solicitors, 6 Lord Street Liverpool, and 6, Bank Street,
Manchester, both in the County of Lancaster 118 New Street, Birmingham
in the County of Warwick, and 31 High Holborn in the County of Middlesex,
Civil 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 :-
This invention has for its object to afford an easy and convenient means of
calculating or reading off cubic contents and the like. It consists essentially of a
roller which has a peculiarly and suitably arranged table gummied or glued on its
periphery, and revolves in a closed sheet metal case or box.
This sheet metal box or case, part of which may be opened and folded back like
a lid if desired, has a long, longitudinal slot in the side on which it is looked at, in
which alot the desired results appear, whilst the one known factor is arranged
stationary under the actual curresponding result on the outside of the sheet metal
case, and the other known factor revolves simultaneously with the desired result in
the longitudinal slot.
The invention will now be described, taking as an example the calculation of
round wood.-

page_text: To me accompanying drawing
Figure 1 is a perspective view of the calculating apparatus and
Figure 1 is an end view of the same with the sheet metal lid opened and laid
back.
Figure 2 shows a view in perspective of a modification of the calculating
apparatus in which two rollers are employed; and
Figure 2 is an end view of the same with the cover or lid opened and laid!
back;
Figure 3 is a front elevation of a larger form of the apparatus in which the
casing stands vertically and is cylindrical in form and
Figure 3 is a transverse section of the same.
An exactly mounted roller a of about 6 centimetres diameter revolves in a sheet
metal case, and has a knob or thumb-piece at both ends, by which it may bo
revolved. The periphery of the roller is covered with a suitable cubic table,.
which preferably only contains such cubic contents as the inventor after many
years' practice in the wood trade has been led to regard as generally useful. The:
sheet metal case or box has on the side which inspected, a vertical or transverse-
slot d, which allows the desired lengths to be seen, and a horizontal or longitudinal
slot in which on the rotation of the roller the cubic contents for all diameters,.
simultaneously appear over a diameter scale arranged there.
C
As other lengths and cubic contents cannot appear in the slot, an easy, certain.
and never failing calculation or reading off is thus possible, and the advantage is
attained that when the lengths are equal, the roller does not need to be revolved
but all diameters with their corresponding cubic contents simultaneously appear
before the eye.
The speed of rotation of the roller is, owing to its small diameter, very great,.
and experiments have shown an effective capability of over 1000 calculations in an
hour without causing the least difficulty or weariness; writing may be done with
one hand and the apparatus revolved with the other.
Whilst for small tables a single roller suffices, it is necessary in other cases, in
order to retain the apparatus within handy limits, to employ two rollers, the table
being in the form of a band wound off oue roller on to the other. The two.
rollers are connected with one another by means of cog wheels or friction-gearing
in order to hold the paper tight during rotation. This arrangement is shown in
Figures 2 and 2ª.
In complicated apparatuses it may become necessary to employ four rollers
which are then connected in pairs, and round which the paper is wound in the form
of an "S" (this is also possible when two rollers are employed) so that both sides
of the paper may be printed, and on each roller at the point of contact with the
sheet metal case the desired rows of figures will be visible through the above-
mentioned slot. It is a matter only of greater convenience whether the machine
lies horizontally or stands vertically.
The invention may be adapted as an interest calculating apparatus with (for
instance) 8 rates of interest for capital sums from (for instance in the case of
German coinage) a pfeunig up to 100,000 marks and from 1 up to 360 days,
arranged in the form of a cylinder (the sheet metal case as shown in Figure 3)
which cylinder revolves on its vertical axis on a foot or base block and contains in
its interior two pairs of rollers a (Figure 3) which again revolve on their own axes.
The slots in the sheet metal case are in this form of construction vertical so that
the interest on 1000 marks, 2000 marks, and so forth, or 100 marks, 200 marks,
300 marks and so forth, or 10 marks, 20 marks and so forth or 1 inark, 2 marks, 3 marks,
4 marks and so forth, may be immediately added therefrom bocause they stand one
under the other if the roller be revolved to a suitable rate of interest and number
of days. In order to facilitate the reading-off an arrangement is made, in this case,
by which all the figures which appear in the slot are each covered by a flap k each
of which turns on a hinge and may be opened separately. In order for instance to
find the interest for 6483 marks at 4% for 165 days, it is merely necessary to

page_text: revolve the roller which contains the rate of interest at 4 % to the column
corresponding to 165 days, and then to open the flaps for the figures 6000, 400, 80
and 3 marks, and there appear then successively one under the other the figures
165, 11, 2.20 and 08 marks which when added together mentally yield the sum of
178.28 marks. This method when the apparatus hereinbefore described is
employed is characterized not only by great rapidity but also great certainty.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
An improved calculating apparatus consisting of one or more rollers mounted
revolubly on their axes horizontally or vertically in a case which is preferably
formed of sheet metal and which may itself be stationary or revoluble and
horizontal or vertical, said rollers being provided with factors and results either
printed thereon or gummed thereon, or having paper or like tables which are
wound and unwound on the rollers, whilst other factors are placed stationary on
the sheet metal casing respectively opposite to their related results, said casing
being formed with a slot which may be provided with a series of flaps whereby the
results may be observed through the slot, or individually by opening a flap in the
alot substantially as hereinbefore described and shown in the accompanying
drawings.
Dated this 19th day of December 1895,
WM. P. THOMPSON & Co.,
Agents.