A Portable Apparatus for Printing Code Symbols.
Year: 1896

page_text: Date of Application, 2nd Mar., 1896
Complete Specification Left, 2nd Dec., 1896-Accepted, 6th Feb., 1897
',
A Portable Apparatus for Printing Code Symbols.
I, WORDSWORTH DONISTHORPE, of 1 Farrer's Buildings, Temple in the City
of London, Barrister at Law, do hereby declare the nature of this invention to be
as follows:-
My invention relates to an apparatus for printing code symbols, so arranged that
four fingers of each hand being placed on a set of keys, by depressing any one or
any two, a series of 24 symbols can be printed, these symbols constituting a code
according as they are selected. For effecting the printing, I employ two small
hollow cylinders mounted close together and charged with suitable ink, each
cylinder having through its bottom a slit so narrow that the ink does not flow
through it unless it is brought in contact with paper or other suitable receptive
surface. Each cylinder can be turned through four divisions of a circle, so that
the ink from its slit produces on the paper a short line, vertical or horizontal or
one of the two diagonal lines at 45°.
By these lines printed by either eylinder or combinations of them printed by both,
24 different symbols are produced which can be appropriated to signify different
letters or other marks.
The keys depressed by the fingers of ench hand are so connected to an arm
projecting from each cylinder that the depression of one key only depresses the
cylinder belonging to that hand, while the depression of the other keys turn as well
as depress its cylinder. The thumbs are provided with keys for advancing and
turning the paper roller.
Dated this 2nd day of March 1896.
ABEL & IMRAY,
Agents for the Applicant.
A Portable Apparatus for Printing Code Symbols.
I, WORDSWORTH DONISTHORPE of 1 Farrers Buildings, Temple, in the City
of London, Barrister at Law, 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 :-
My invention relates to an apparatus for printing code syinbols, so arranged that
four fingers of each hand being placed on a set of keys, by depressing any one or
any two, a series of 24 symbols can be printed, these symbols constituting a code
according as they are selected. For effecting the printing, I employ mechanism
which I shall describe referring to the accompanying drawings.
Figure 1 is a plan with part of the cover removed,
Figure 2 is a transverse section and Figure 3 is a front elevation with that side
of the case and the key mechanism removed.

page_text: Figure 4 is a perspective view to a reduced scale of the whole apparatus.
Figure 5 is an end view and Figure 6 a part plan of the ratchet and incline for
turning the paper roller.
A Aare two hollow cylinders mounted close together and charged with suitable
ink, each cylinder having through its bottom a slit so narrow that the ink does not
flow through it unless it is brought in contact with paper or other suitable receptive
Burface.
Each cylinder enn be turned through four divisions of a circle, so that the ink
from its slit produces on the paper a short line vertical or horizontal or one of the
two dingonal lines at 45°. By these lines printed by either cylinder or com-
binations of them printed by both, 24 different symbols are produced which can be
appropriated to signify different letters or other inarks.
The keys KK depressed by the fingers of each hand are so connected by wires
to arms B B projecting from each cylinder A A' that the depression of one of the
keys Kor Kouly depresses without turning the cylinder A or A' belonging to
that hand, while the other keys on being depressed turn more or less as well as
depress each cylinder.
Thus each of the keys K K moves a bell crank C which has a short upright
arm terminating in a hammer head that strikes its respective rod R or R' which are
respectively mounted on the vertical arms of two hell cranks D, (of which one only
is shewn in the drawings) the horizontal arms of which perform two functions by
means of links E E' guided by radial arms F by pushing down their respective
cylinders A or A making it strike the paper passing over a table G and by striking
pins on a rod H. it first depresses and then raises this rod, so operating a pair of
spring pawls in an oscillating frame I, as to allow of advance by a tooth or rack .J
attached to a frame carrying the paper roller and its appurtenances such advance
being caused by a spring in a case L. A key T moved by the thumb also serves
to advance the rack for the purpose of spacing between words. The other keys
worked by the fingers of each hand also move hell crank levers like C but with
longer upright arms, which besides moving the bell cranks D and so depressing one
of the cylinders A. A' and also advancing the rack J, moves wires W W which at
their ends have hooks catching over the lever arms B B attached to the
cylinders A A. Each of these wires moves either the arm B or B with which it
is engaged as far as permitted by a stop S or S', and the wires and stops are
so arranged that according to the particular key depressed the extent to which the
cylinder A or A is turned is such as to mark on the paper the symbols shown on
the keys. When the pawls are disengaged from the rack H, the frame that carries
the paper roller and its appurtenances on being returned by means of the handle M
to the right hand end of its travel brings a ratchet wheel 15 on a roller Palong an
incline Q fixed to the casing by which the roller P is caused to revolve and which
by friction on the paper, due to the pressure of springs U, causes it to be moved
the distance of a line thereby presenting another surface of the paper to receive
impressions.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed I declare that what I
claim is:-
Apparatus for printing code symbols constructed and operating substantially as
described with reference to the accompanying drawings.
Data is 2nd day of Docsaibar 1896
ABEL & IMRAY,
Agents for the Applicant.