Image
Archive
People

Stepping up.

Stepping down.

Mill. Cycles of 15 and 20. Sheet 2 of 2.

Notation of units of consecutive half zero carriage.

Algebraic addition with giving off. Sheet 1 of 2.

Multiplication with three multiples. Sheet 2 of 2.

Verticals for multiplication. Notation 166.

Algebraic addition of n times k figures. Sheet 3 of 5.

Division. Sheet 7 of 9.

Approximative multiplication. Sheet 1 of 5.

Algebraic addition of n times k figures. Sheet 4 of 5.

Mill decimal counting apparatus.

Algebraic addition of n times k figures. Sheet 1 of 5.

Notation of algebraic addition. To suit Plan 25. Sheet 1 of 3.

Counting apparatus. Multiplication and division.

Algebraic addition of n times k figures. Sheet 2 of 5.

Approximative multiplication. Sheet 4 of 5.

First arrangement of the verticals for one barrel to do approximative multiplication. Notation 268. Sheet 1 of 2.

Approximative multiplication. Summary of multiplication. Sheet 2 of 5.

Algebraic addition of n times k figures. Sheet 5 of 5.

Verticals for governing A et cetera for algebraic additions, notation 170. Sheet 1 of 2.

Approximative multiplication. Sheet 3 of 5.

Plan 28. Trains, vertical positions of the wheels and algebraic addition.

Sketches of various notations.

Notation of consecutive and half zero carriage.

Approximative multiplication. Sheet 5 of 5.

Verticals for governing A et cetera for algebraic additions, notation 170. Sheet 2 of 2.

Vertical positions of the wheels of Plan 28. Sheet 1 of 23.

Digit counting by carriage. Drawing 106.

Vertical positions of the wheels of Plan 28. Sheet 5 of 23.

Sketches of various notations.

Approximative multiplication for Plan 28. Sheet 6 of 8.

Division. Sketches of various notations.

Anticipating half zero carriage. Addition and subtraction by half zero. Sheet 2 of 2.

Vertical positions of the wheels of Plan 28. Sheet 6 of 23.

Vertical movements of axes ordered by barrels for division.

Vertical positions of the wheels of Plan 28. Sheet 7 of 23.

Vertical movements of axes ordered by left barrel for multiplication compiled in part from a genealogical notation. Sheet 3 of 3.

Summary of multiplication.

Vertical movements of axes ordered by right barrel for multiplication compiled in part from a genealogical notation. Sheet 2 of 3.

Vertical positions of the wheels of Plan 28. Sheet 15 of 23.

Division. Rough drafts of parts of Notations 272 and 273.

Division. Sheet 2 of 6.

Vertical positions of the wheels of Plan 28 for multiplication. Sheet 14 of 23.

Vertical movements of axes ordered by right barrel for multiplication compiled in part from a genealogical notation. Sheet 1 of 3.

Algebraic addition of k figures.

Vertical positions of the wheels of Plan 28 for artificial stepping of divisor. Sheet 17 of 23.

Division. Working notation belonging to Summary No. 244 which superseded Notation 241.

Vertical positions of the wheels of Plan 28 for algebraic addition of i k figures. First part of cycles ordered by verticals n and 'n of centre barrel. Sheet 20 of 23.

Division.