In Treasury Papers Reg No. 14831/1834
Charles Babbage Esqre
Dr to Joseph Clement of Southwark
To a Machine for Calculating consisting of the undermentioned Materials as far as finished up to the 12 March 1834.
To smooth Turning Seven Steel Axes for Calculating Wheels 7 feet 3 1/8 inch long 7/8 inch diameter.
To smooth Turning Six Steel Axes for bolting Arms 7 feet long 3/4 inch diameter.
To smooth Turning One Steel Axis for Eccentrics 6 feet 11 3/4 inch long 3/4 inch diameter.
To smooth Turning Seven Steel Axes for carrying Arms and Figure Wheels 7 feet 5 ½ inches long 9/32 inch diameter.
To smooth Turning Seven Steel Axes for Intermediate Wheels 6 feet 4 3/4 inches long 9/32 inch diameter.
To smooth Turning filing and grinding Fifteen Steel framing Bolts of the following lengths
4 [of] 6 feet 5 5/8 in
2 [of] 6 feet 7 1/8 in
3 [of] 6 feet 11 7/8 in
4 [of] 7 feet 1 1/8 in
and
2 [of] 7 feet 2 5/8 in
[all of] 11/16 inch diameter.
To smooth filing Fourteen Gun Metal Levers for putting the bolting and Carrying Axis in and out of Gear.
To smooth filing Seven Gun Metal Levers for putting the Intermediate Axis in and out of Gear.
To filing up Seven Gun Metal Roller Wheels for holding the Vertical Carrying Axis in a certain position.
To boring and Turning a Gun
Metal bevel Wheel on first Axis for giving motion to the bevel wheel on
the Cam for lifting Type Sector.
To boring Turning and partly filing a Gun Metal bevel wheel and Cam for lifting Type Sector.
To boring rough Turning and filing a Gun Metal lever for raising and locking Type Sector.
To boring and rough Turning
a Gun Metal Wheel for endless Screw of Spring box and also Turning the
inside of Spring box for Type Sector.
To boring and rough Turning
that part of the Type Sector which will be fixed to the Axis, the four
moveable parts rough Turned fitted and screwed to the fixed part.
Three Steel Screws for fixing any of the moveable parts of Type Sector to the fixed part.
To boring and rough Turning two Gun Metal Sixty intermediate Wheels on twenty Axis.
To boring and rough Turning a Gun Metal Sector Wheel intended to be fixed on twenty Axis.
To boring and rough Turning a Gun Metal Sector Wheel intended to be loose on twenty Axis.
To boring Turning and
filing a Gun Metal Sector Wheel on great Axis for giving motion to the
horizontal Calculating Axis, a hole drilled and tapped for receiving a
Screw which fixes the starting tooth to it.
To boring Turning and
fitting a Gun Metal starting tooth to the above Wheel for putting it in
Gear with a Wheel on the horizontal Calculating Axis, a hole drilled for
receiving the Screw which fixes it to the aforementioned Wheel.
A Steel Screw for fixing the above starting tooth to the Wheel.
To boring Turning and
filing a Gun Metal Spur Wheel on horizontal Calculating Axis which
receives motion from the Sector on great Axis, holes drilled and tapped
for receiving the Screw which fixes the roller wheel and starting tooth
to it.
To boring Turning filing
and fitting a Gun Metal Starting tooth to the above Wheel, holes drilled
for receiving the Screws which fix it to the Wheel.
To boring Turning filing a
Gun Metal roller wheel to the above Wheel, holes drilled for receiving
the Screw which fix it to the Wheel.
Two Steel Screws for fixing the above Roller Wheel and starting tooth to the Spur Wheel.
To boring Turning and
filing a Gun Metal Sector Wheel on Great Axis for giving motion to the
Spur Wheel on horizontal Carrying Axis, a hole drilled and tapped for
receiving the Screw which fix the starting tooth to the wheel.
To boring Turning and
fitting a Gun Metal starting tooth to the above Wheel, hole drilled for
receiving a Screw which fix it to the Wheel.
A Steel Screw for fixing the above starting tooth to the Wheel.
To boring Turning and
filing a Gun Metal Spur Wheel on horizontal Carrying Axis, a hole
drilled and tapped for receiving a Screw which fix the starting tooth to
the Wheel.
To boring Turning and
fitting a Gun Metal starting tooth to the above wheel, hole drilled for
receiving the Screw which fix it to the Wheel.
A Steel Screw for fixing the above starting tooth to the Wheel.
A Gun Metal Wheel on great Axis for giving motion to the horizontal bolting Axis bored Turned and filed.
To drilling holes in 40 Gun Metal Rings which are intended to be cut in pieces and form Eccentrics for Barrels.
To drilling 6 holes in the flange on the upper end of the Socket of 6 Bevel Wheels for Vertical Calculating Axis.
To drilling 3 holes in the flange on the upper end of the Socket of Seven Bevel Wheels for Vertical bolting Axis.
To drilling 3 holes in the
flange on the upper end of the Socket which is screwed into the Bevel
Wheels for Vertical Carrying Axis.
Four Steel Bolts forged for fixing down the upper Platform.
Two Steel Bolts forged for fixing down the frame of Copper plate.
Four Steel Rings forged for Eccentrics for moving the Copper from figure to figure.
To filing and grinding Seven Steel Axes for Calculating Wheels.
To filing and grinding Six Steel Axes for bolting Arms.
To filing and grinding One Steel Axis for Eccentrics or locking Axis.
To filing and grinding Seven Steel Axes for Carrying Arms and figure Wheels.
To filing and grinding Seven Steel Axes for intermediate wheels.
To smooth Turning filing and grinding Seven Steel Axes for Alarm Arms.
To smooth Turning the four
moveable parts of Type Sector, Eleven holes bored and a Screw cut in
each of them where the Steel punches or Figures are intended to be
fixed, and Eleven holes bored for receiving a Pin for locking the Type
Sector.
To smooth Turning two Gun
Metal Sixty intermediate Wheels on Twenty Axis, one of the above Wheels
is fitted to the boss of the other, two holes drilled and tapped for
receiving two Screws which fix them together and the Arms filed up.
Two Steel Screws for screwing the above Wheels together.
To partly filing the Arms
of a Gun Metal Sector Wheel intended to be fixed on twenty Axis three
holes bored in the Arms of the Wheel and three in the flange for the
Pins of the Clutch to slide through.
To rough filing the Arms of
a Gun Metal Sector Wheel intended to be loose on twenty Axis, three
countersunk holes bored in the Arms for receiving the Pins and Nuts of
the Clutch which puts it in and out of Gear.
To boring and rough Turning
that part of the Clutch which slides upon the Axis for the above Sector
Wheel, three holes tapped for receiving the Pins which puts the loose
Sector Wheel in and out of Gear.
To boring and Turning a Gun Metal Pinion on first Axis for giving motion to Sectors on twenty Axis.
To Turning Nine Gun Metal
Rings which are intended to be cut into pieces for the moveable parts of
Sector Wheel, the thin part of the Ring is not yet Turned.
Seven additional Gun Metal Rings for the moveable parts of Sector Wheel in a similar state to those above.
to drilling three holes in
the flange of the bottom or fixed part of thirteen Gun Metal Clutches
for putting the Calculating and bolting Axis in and out of Gear, three
holes drilled and tapped in the flange on the bottom end of the middle
or sliding part of the above Clutches; three holes drilled and tapped in
the flange on the upper end of the sliding part and also a hole drilled
and tapped for receiving a Screw for preventing the upper end of the
sliding part from unscrewing from the lower end of the sliding part of
the Clutch.
Twelve Steel Screws for fixing Spring Cases and Rollers in Roller Levers for putting the Calculating Axis in and out of Gear.
Fourteen Steel Screws for fixing Spring Cases and Rollers in Roller Levers for putting the bolting Axis in and out of Gear.
Fourteen Steel Screws for fixing Spring Cases and Rollers in Roller Levers for putting the Carrying Axis in and out of Gear.
Fourteen Steel Screws for
fixing Spring Cases and Rollers in Roller Levers for holding the
Vertical carrying Axis in a certain position.
Two Steel Screws for fixing
Spring Case and Roller in Roller Lever for holding the horizontal
Carrying Axis in a certain position.
Two Steel Screws for fixing
Spring Case and Roller in Roller Lever for holding the horizontal
bolting Axis in a certain position.
Seven Steel Screws for fixing rollers in roller Levers for putting the intermediate Axis in and out of Gear.
Two Steel Screws for fixing
Spring Case and Roller in Roller Lever for holding the 48 Wheel and
Barrels in any required position.
Thirteen Steel Screws for preventing the upper end of the sliding part (of the above Clutch) from unscrewing from the lower end.
To drilling three holes in
the flange of the bottom or fixed part of the Seven Gun Metal Clutches
for putting the Carrying Axis in and out of Gear three holes drilled and
tapped in the flange on the bottom end of the middle or sliding part of
the above Clutches, and a hole drilled and tapped for receiving a Screw
for preventing the upper end of the sliding part from unscrewing from
the lower end of the sliding part of Clutches.
Seven Steel Screws for preventing the upper end of the sliding part (of the above Clutches) from unscrewing from the lower end.
To drilling and tapping two
holes in the middle or fixed part of 40 Gun Metal Bolts for receiving
the Screws which fix the springs to them.
To hardening and tempering 80 steel springs and fitting them to the above Bolts.
To rough filing the edges
of the sliding part of 40 Gun Metal Bolts, four holes drilled in each
for receiving the screws which fix them to the bolting Pieces.
To cutting and filing up 80
Gun Metal bolting pieces, two holes drilled and tapped in each piece
for receiving the Screws which fix them to the Sliding Part of the
Bolts, but they are not yet adjusted to slide freely on the fixed part
of the Bolt nor yet smooth filed.
A Steel Axis (for the Type
Sector and frames which support the drop Pins) Seven feet long 1 inch
diameter forged aneald centered and made straight.
Four Steel Oblique Axes 7 feet 6 ins long 19/32 inch diameter aneald centered and made straight.
Four Steel Oblique Axes 6 feet 6 inches long 19/32 inch diameter aneald and made straight.
A Steel horizontal Calculating Axis 3 feet 11 Inches long 1 1/8 diameter forged aneald centered and made straight.
A Steel twenty Axis 5 feet 3 inches long 1 3/16 inch diameter aneald centered and made straight.
Two Gun Metal Castings of Pillars for supporting the General Platform Cornice &c. of the Calculating end of the Machine.
Two Gun Metal Castings intended to be fitted to the top of the above Pillars and to form two corners of the Cornice.
To 78 Packing Cases
containing the whole of the Calculating Machine, excepting the Two large
Columns and General Platform of the Calculating end of the Machine and
the several parts of the Machine that are already in Mr Babbage's
possession.
To 3 Boxes containing the several Patterns of the Machine.
To 1 Box containing the several Drawings of the Calculating Machine excepting the following 28 on the Drawing Boards.
[MDB = Mahogany Drawing Board]
1 MDB together with drawing 8 feet by 4 feet 2 inches
1 do. do. 5 ft 10 inches by 4 feet
1 do. do. 5 ft 10 inches by 4 feet 2 inches
2 do. do. 5 ft by 4 feet 2 inches
1 do. do. 4 ft 10 inch by 3 ft
1 do. do. 4 ft 8 inch by 2 ft 8 inches
1 do do. 4 ft 6 inch by 2 ft 6 inch
18 do. do. 3 ft 6 inch by 2 ft 4 inch
1 Deal do. 3 ft 5 inch by 1 ft 6 inch
1 do. do. 11 ft by 1 ft 6 inch.
Amounting to £1200-13-6½
The above account includes a charge of time and expences in packing and removing the cases to East Street.
13th June 1834 Ex[amine]d
(signed) Bryan Donkin
Joshua Field
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