Marshall's Geological Diagrams
Manuscript entitled: "Catalogue of the Apparatus of Philosophical Instruments, in the Collection of Her Late Majesty Queen Charlotte, at the Observatory at Richmond in Surrey"
Temporary staging
Pages 62 and 63 of the Robert Stephenson & Co Ltd minute book no.1
Digit counting apparatus on the two upper wheel selectors.
Store variable selectors. Superseding drawing No 2.
Sign apparatus for Plan 28a. Plan, elevation.
Plan and elevation for the calculating part of the Difference Engine. Figure 1. Superseded. Consecutive carriage.
Motion for carrying the tens, plus and minus.
Sketch of an apparatus for advancing stereotype frames of the Difference Engine by cranks and backing them by weights. Superseded. Plan, elevation.
A draft drawing labelled 'Sheet 3', showing card adding axis, mill adding axis, figure wheels, warning bar and lever and tens lifting slide.
Speculations on the driving and directive for the Difference Engine. Superseded. Arrangements.
Difference Engine wheels for driving the cranks which move the matrix frames. Superseded. Plan, elevation.
Speculations on the driving and directive of the Difference Engine. Superseded. Arrangement.
Lifting apparatus by screw. Sheet 9.
Carriage and racks in sections. Sheet 10.
Side and end elevation of feed motion with shade. Second revision.
Sections of framing and racks. Sheet 6.
Apparatus for registering the quotient adapted to Plan 28a.
Side and end elevation of feed motions. Showing the bands in different colours.
Reverse motion for cross planing.
Back and end elevation of cross slide.
Motions of the printing apparatus
Motions of the stereotype frames
Side and end elevations of feed and driving apparatus
Circular motions of the calculating axes
Small planing machine. Sheet 1.
Elevation and section of cross slide.
End and side elevation of Large Universal Machine.
Plan, elevation and section of cross slide.
Motions of the stereotype frames
Sketch of an apparatus for lifting the axes of the Analytical Engine. Plan, elevation.
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.
Untitled pencil layout, includes mill racks.
Untitled. [Drawings of cams]
Difference Engine index of parts.
Cross-written letter from Miss Smith to Jane Young (nee Hackworth), Vilvorde, Belgium
My Machine 1888 II Plan of driving cams, levers, etc. in initial position.
My Machine 1889 III Development of driving cams.
Locking motions for carriage column.
Duties of the mill counting apparatus which require the cycle of a(=12) units for Plan 28a. Sheet 2 of 2.
Trains and vertical motions of the wheels and axes ordered by barrel no. 2 of the mill counting apparatus of Plans 28 and 28a for division, as performed in working Notation 290. Sheet 2 of 2.
Trains and vertical motions of the wheels and axes of the table group of Plan 28a for division, as performed in working Notation 290 and for ascertaining if a variable has a + or - sign.
