Plan of left half of middle group for General Plan 28.
Plan of Large Universal Machine.
Untitled plan and elevation. Incomplete.
Plan of mill, table wheels and carriage. Sheet 31.
Adding column with motion for changing from plus to minus. Incomplete.
Platform raising apparatus. Sheet 33.
Untitled. A model of six cages was made from this drawing. Incomplete.
Drawing of the parts controlling the positioning and punching of the decimal point
Reduction of three simultaneous equations in three variables to two simultaneous equations in two variables
My Machine 1888 II Plan of driving cams, levers, etc. in initial position.
My Machine 1889 III Development of driving cams.
Sheet 1. Successive reduction of three simultaneous equations in three variables to find the solution for one variable.
Sheet 2. Successive reduction of five simultaneous equations in five variables to find the solution for one variable.
Letter from Timothy Hackworth to Liverpool and Manchester Railway Board
Cross-written letter from Miss Smith to Jane Young (nee Hackworth), Vilvorde, Belgium
Untitled. This drawing is a cardboard model.
Gearing et cetera of Sketch dated July 31 1835. Plan, once part of Drawing 22.
Grouping arrangement. Abandoned end April 1835.
Method of grouping for the large machine.
Carriage by vertical chain. Plan, elevation.
Sketches of mill used for arranging operations on the engine of four wheels in each cage from April 1836 - August 1837.
Elevation of arrangement 13 with some of the driving and directive. Elevation includes section of a barrel '65 bands 80 verticals'.
Locking motions for carriage column.
Intended for engraving. Shows six barrels with reducing apparatus.
Plan of the left half to middle group for General Plan 28.
Plan of consecutive mill counting apparatus for General Plan 28. Plan, note.
Sketch of an apparatus for advancing stereotype frames of the Difference Engine by cranks and backing them by weights. Superseded. Plan, elevation.
First sketch of all the parts in plan of the right half to middle group of General Plan 28. Plan, elevation.
Parts of the slide for Planing machine. Plan, elevation.
Anticipating whole and half zero digit counting carriage. Plan, elevation and details.
Elevation of parts of the card counting apparatus for operation and variable cards.
Motions of the printing apparatus
Motions of the stereotype frames
Chuck for Planing machine. Plan, elevation.
Circular motions of the calculating axes
Motions of the stereotype frames
Parts of slide for the Planing machine. Plan, elevation
Sketch of an apparatus for lifting the axes of the Analytical Engine. Plan, elevation.
Standard case of approximate multiplication. Sheet 3 of 4.
Approximative division. Standard case. Sheet 4 of 12.
Division, continued. Sheet 2 of 12.
Multiplication. Sheet 1 of 4.
36 variations of approximative division. Sheet 12 of 12.
Approximative division, continued. Sheet 10 of 12.
Verticals for multiplication. Notation 108.
Untitled pencil layout, includes mill racks.
Approximative division, continued. Sheet 7 of 12.
Approximative division, continued. Sheet 8 of 12.
