Year: 1887

page_text: Date of Application, 11th June, 1887
Complete Left, 21st Feb., 1888
Complete Accepted, 27th Apr., 1888
HENRY PREVOST BABBAGE a Major General in Her Majestys Army of Yorkleigh
St. Georges Road Cheltenham do hereby declare the nature of this invention to be
as follows:-
A Type Wheel with Type fixed radially is carried on a bar, along which it is moved
automatically as required to print each letter in succession, or to leave the blank spaces
between the words or paragraphs. One hand only is required for the motive force
and to turn the Type Wheel to the selected letter or figure to be printed and bring it
down on the paper. The bar above mentioned moves up & down on a pivot at one
end & has guides at the other.
The paper is held stationary while this is being done. When a line is completed
the Type Wheel must be brought by hand back along the Bar to the left hand side &
the Paper moved forward for the next line. This is done by means of a pair of
Rollers with finger knob & detent, or by a small addition to the machine may be done
automatically.
The arrangement of the Machine is this There is a bar which may be of any
section but oblong preferred. One end works on a fixed point and the other rises and
falls between fixed vertical guides. On this bar (called the Main Bar) is a cylindrical
Slide about 2 or 3 inches long, having a hole through the centre to fit the Main Bar.
This slide carries at one end a plate or frame to which are attached
1st. An inking Pad or Roller for the Type.
2nd. An Index or Pointer to show the letter to be printed.
3rd. A spring or catch to act on a detent wheel on another piece.
Adjacent to this plate and fitting on to the Cylindrical Slide is a piece of tube
carrying
1st. A detent wheel (which is held in position by the spring or catch above
mentioned.
2nd. A disc with letters &c. to be printed engraved on its edge.
3rd. A wheel with the type fixed radially round the edge in the same order as
"

page_text: These three are all firmly held together and capable of being turned round, so as to
bring the required letter &c. under the Index or Pointer and the same type next the
paper to be printed.
Instead of the Index or Pointer to show the letter and the Disc with letters above
mentioned, there may be a pair of bevil wheels, on one of which may be shown the
letters &c. These turning with the handle on the Slide, will bring the desired letter
on one bevil wheel under a fixed hand or pointer and the same letter next the paper
to be printed.
Attached to the right hand end of the Slide but not so as to interfere with the
circular motion of the Type Wheel & Handle is a smaller bar parallel to the Main
Bar in guides. This piece has on one edge a Rosette Rack, or Rack with rounded
teeth and on the Main Bar is a spring or catch which thus holds the Slide in a
definite position on the Main Bar and on the under side or edge is another Rack
with Ratchet teeth; on this works a Pall fixed on an Arm attached to the Main Bar,
which Arm is moved so as to force the Pall forward one tooth of the Rack with each
stroke of the Main Bar. In the type wheel are one or two blank spaces without type and
when a space between the words or paragraphs is required the corresponding blank
space on the Index Disc or wheel is brought under the Pointer and thus no letter is
printed but the Type Wheel is moved one space. The paper is held between two
Rollers with a finger knob and detent on one Roller and when a line is complete the
paper is moved forward by hand; or by a small addition to the machine it may be
moved automatically.
The action of the Machine is this
The Main Bar (and pieces on it) is kept in its highest position by a spring. The
handle is turned by the fingers, so as to bring the required letter under the Index or
Pointer; this will bring the corresponding letter in the Type Wheel next the paper
and in the proper position for printing: The Main Bar is now depressed, this will
do two things.
1st. It will bring the Pall Arm on the Main Bar into contact with a fixed stud
thus moving the slide one tooth of either Rack towards the right hand, the Ratchet
Rack moving it on and the Rosette Rack keeping it there and
2nd. It will bring the lowest figure of the Type Wheel into contact with the paper
and will print that letter but if only a space (as at the end of a word) is desired
the Index will have been set to a blank and there will be no type at the
corresponding point in the Type Wheel and nothing will be printed.
The Main Bar will then be allowed to rise by the spring and another letter brought
under the Pointer and the operation repeated. When the end of a line is reached
the Rollers will be moved by the finger knobs one tooth of the detent wheel, bringing
the paper forward for the next line-or on the Axis of one Roller may be a small Ratchet
Wheel and an arm with a Pall working on the Ratchet Wheel: so arranged that as
the Slide (with the Type Wheel) travels to the right, when it arrives at the proper
point, a projecting part may come in contact in its descent with the end of the Arm ;
thus force it down and turn the Ratchet Wheel on the Roller one tooth and so move
the paper forward. The further descent of the Main Bar would be then stopped by
the intervening Arm and no letter would be printed. The. Slide must then be moved
back by hand to the left for a new line.

page_text: I HENRY PREVOST BABBAGE a Major General in Her Majesty's Army of Yorkleigh,
St. Georges Road Cheltenham, 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, to which are annexed two sheets of
Drawings
:-
The letters used in this statement refer to the drawings.
The Type Wheel D with the Type fixed radially, is carried on a Bar S along which
it is moved automatically as required to print each letter in succession or to leave the
blank spaces between the words and paragraphs. This Bar S is moved up and down,
always in parallel positions between vertical guides at either end. It is controlled by
the Arms B2 and 1 (linked to it at either end) which are fixed on a Rod W². parallel
to the Main Bar S: this Ród oscillates on its centre as much as required by the
motion of the Main Bar S.
On the Main Bar S is a cylindrical Slide F having a hole through the centre to fit
the Main Bar S. This Slide F carries at the left end a plate or frame A to which is
attached a Spring catch to act on the detent Wheel C placed on an adjacent piece and
loose on it is an Arm carrying an Inking Roller B. This Arm can be moved round
for the purpose of distributing the Ink equally.
Fitting on to the cylindrical Slide is another cylindrical piece carrying at its
left end
1st. A detent Wheel C (which is held in position by the catch).
- 2nd. The type Wheel D.
3rd. A mitre Wheel E.
These three are all held together in one piece and capable of being rotated so as to
bring any desired letter &c. into the proper position for printing. At the right hand
end of the Slide F, (but not so.as to interfere with the notion of the Type Wheel),
is an upright G, carrying a mitre Wheel H similar to E, on the outer rim of this
mitre Wheel H are engraved the letters &c. in the same order as on the Type Wheel D,
it has a milled edge finger Knob I by which it may be rotated and by which also
the Main Bar S with Type Wheel &c. is depressed for printing and spacing. On this
upright G is also fixed the Index piece J. On the under side of the Slide F at this
end is a downward projection K, the object of which will be presently stated. At
this end is also fixed a Pall L working on a long Rack R which is parallel to the
Main Bar S and kept in that position by guides on the Main Bar ; the size of the teeth
of the Rack R determines the space allowed for each letter.
Pivotted on the Main Bar S is an Arm or Lever M, the top end of which O actuates
the Rack R and the lower end carries a Roller N which works in a fixed vertical
guide B properly shaped to control it. The Rack R thus receives a to and fro motion
with each movement of the Main Bar and in its turn actuates the Pall L and thus with
each downward stroke of the Main Bar S the type Wheel is pulled one tooth of the

page_text: Rack R towards the right. The teeth of this rack are not continued beyond a certain
point when the Pall L reaches this point, of course it ceases to act. The paper is
held in position between two Rollers B' and F¹.
On the Axis of F at the right hand are fixed, a Rosette Wheel H¹ with a spring
catch and a Ratchet Wheel J; loose on the Axis is an Arm K' carrying a Pall L'
actuating the Ratchet Wheel J. this Arm is joined by a Link to another Arm P
centred on W, so that when the Arm P' is depressed at the end P' by the finger, the
Pall L' carries the Ratchet Wheel J¹ forward one tooth and the Rollers holding the
paper are moved the same and the paper is carried forward sufficient space for a line.
If more space is wanted the action may be repeated as often as desired. The Arm P
is kept up by a suitable spring.
The line to line motion is effected automatically thus; when the Slide F has arrived
at a certain position on the Main Bar, the part K will be brought over the Arm P³
and on descending will depress it, thus the Rollers will be turned and the paper moved
on automatically for the next line: the Arm P' having effected this and reaching its
lowest point can go no further and stops the part K and with it the Type Wheel
which is thus prevented reaching the paper.
The Pall L must now be raised and the Slide F moved back to the left to begin a
fresh line of print.
The Type Wheel has one or two blanks and when space between the words or
paragraphs is wanted the Type Wheel must be set accordingly.
The Main Bar with the Slide and Type Wheel is kept at its highest position by
suitable springs.
The Type Wheel being set by the Finger Knob to the desired letter is depressed.
The first part of the motion will move it one space to the right and the final motion
will impress the Type on the paper and print the letter.
The springs are then allowed to act and raise the Main Bar. The exact pressure
on the paper may be regulated by stops at the ends of the Main Bar.
The paper, is supported by a soft bearing under the line to be printed.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is,
1st. The Type Writer with the general combination of its parts herein shown and
described.
2nd. The position and motion of the Type Wheel and its handle on the Main Bar.
3rd. The motion of the Type Wheel from letter to letter by the means shown and
described and by the direct force of the hand.
4th. The production of the spaces between the words and paragraphs by the same
direct means.
5th. The automatic movement of the paper from line to line by the means shown and
described.
6th. The movement of the paper by hand from line to line, or as may be desired,
by the same means.
7th. The regulation of the right hand margin by arresting the printing automatically
always at the same spot as shown and described.
Dated this 20th day of February 1888.
HENRI F. BABBAGE,
БАББАТЕ,