Improvements in Type-writing Machines.
Year: 1895

page_text: Date of Application, 12th Aug., 1895-Accepted, 28th Sept., 1895
COMPLETE SPECIFICATION.
Improvements in Type-writing Machines.
I, RICHARD TOEPPER, of Blumenstrasse 19, Naumburg a/d Saale, in the Empire
of Germany. Merchant, 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 :-
The present invention relates to a typewriting machine, having on its type-plate
letters and combination of letters (syllables, words) which, by a single pressure on
the key, are impressed upon the paper, a space being formed by the paper carriage,
corresponding with the length of the types.
On Sheet 1 of the accompanying drawings, Fig. 1 represents the spacing
mechanism in plan view, Fig. 2 in elevation.
On Sheet 2, Fig. 3 shows a section through the whole machine on line
of Fig. 1, Fig. 4 is a representation of the key-board, Figs. 5 and 6 being
detail views.
The construction of the machine and its method of working is substantially as
follows:
The machine pertains to the class of pressing lever machines, that is to say,
during the process of writing, a pressing lever is placed over and pressed down-
wardly so as to strike the letters to be written which are represented on a sign
board, thus printing the respective letter on the paper underneath, and in which,
on the swinging back of the pressing lever, the spacing is effected for the length of
the type thus imprinted.
The pressing mechanism is illustrated in Fig. 3 of Sheet 2. On the bottom
plate a are mounted two angle-frames a' forming the frame of the machine; said
frames carry at their free ends by the hinges a two plates band b', the latter and
lower resting on the columns e the height of which may be altered at will by means
of the screws c' attached to their ends. The springs c² keep both plates and b¹
at a certain distance from each other. On the plate bis fastened by means of
It
set-screws d the sign-board e, which is represented in plan view in Fig. 4.
consists of a rectangular piece of sheet metal provided with a number of holes e¹
underneath which the letters and combinations of letters (syllables and words) are
arranged in rows in such manner, that the rows marked I contain only one letter,
those marked II two letters, and finally, those marked III three letters.
Below the sign-board e there is a bar f supporting, on the lug f₁ the pressing
lever movable about bolt f2, said lever f³ being adapted to coincide with its
button, with the holes e¹ of the plate e. The bar f sliding on guide g may be
displaced in a longitudinal direction, and, as the guide g itself is fastened to the
cross bar g' underneath the plate e, it may be moved perpendicularly to the
moving direction of the bar f, so that this combination of movements permits of
bringing the button * over any letter or sign of the sign-board e. The bar g'is
guided at its front edge by means of the turned up edge 63 of the plate and at
the rear edge by means of two small angle irons g² screwed on to plate b. At both
ends of the bar fare suspended from pins / the bars which latter, reaching
underneath the plate b, support, within the frame 2, the rubber type-plate h³.
Above the latter and on the underside of plate b is arranged a stud i which on
pressing down the pressing lever 12, presses the type that happens to be underneath
it, through the hole of the plate against the paper sheet *.
The paper runs between the rubber rollers mounted on the carriage k, over
the cross-bar 2 and back in the manner illustrated. The carriage is formed of

page_text: the two exterior side plates supporting the rollers and connected to each other
by the bar and the bolts k³, there being also plates on the bolts for a better
guidance on the guiding bar l.
The spacing at the pressing down of the pressing lever, is accomplished by the
plate m (Figs. 3 and 5) which is, by means of bolts, connected with the cross bar g
and bent downwardly at a right angle. Said plate has, as illustrated in Fig. 5,
three different recesses, recess 1 pertaining to the rows I, 2 to rows II, and 3 to
rows III.
The plate m lies above the bolt n.
In order to minimize the friction caused on pressing down the pressing lever f³,
and bringing the plate m into contact with the bolt n, a hollow cylinder n' has
been slid over the bolt n, said cylinder being held in position at one end by the
regulating ring, at the other by the spring n³. The bolt n projects from the
angle lever or sector o which is fulcrumed on the uprights o' and guided by
the screw o in the slit o. In the upper end of the angle lever o is screwed a
horizontal bolt which has at its end the pawl p¹. The latter rests on the
rack p² fastened to the carriage. When, on pressing down the lever f³, the
plate m has pressed down the bolt n and thereby caused a movement of the angle
lever o, the pawl p slides over the teeth of the rack p³ and, on the lever o going
back, displaces said rack for a distance of so many teeth as it had traversed in
the downward movement of the lever. Thus when the plate m with the
projection 1 has its position above the bolt n, that is to say, when the pressing lever
rests on a sign of the rows I, the angle lever o is pressed down as far as required
in order to let the pawl pl pass over one tooth only.
On the returning of the angle lever o a spacing is given equal to the pitch of
the teeth of the rack bar, that is, equal to the length of a type representing one
letter.
When the pressing lever flies above a sign of the rows II, the plate m assumes
its position with the projection 2 above the bolt n the stroke of the angle lever
being then large enough to allow the pawl p' to pass over two teeth of the rack
har whereby the paper carriage is moved for two letters length. When finally
the pressing lever lies above a sign of the rows III the plate m lies with its
projection 3 above the bolt n the downward pressure of the angle lever will then be
sufficient to cause the pawl pl to pass over three teeth of the rack bar p³ whereby
the paper carriage is moved for the length of three letters. The backward
movement of the angle lever o is caused by the spring g¹. On the extension ŕ of
the bolt n rests the lever s pertaining to the spacing key s. Said lever is pivoted
at on the column c it being guided in a slit in the posts. Its movement is
only sufficient to allow the paper carriage to be moved for one letter's length.
Fig. 6 shows a safety mechanism consisting of a second rack-bar t which is
attached to the rear end of the carriage k said rack engaging with a pawl t' actuated
by the bolt nor its projection r respectively. Said pawl is pivoted at t on the
plate t and is pressed against the said rack by the spring t. The pawl t¹ is
connected with rod r, by means of the loop t' in such a manner that on the latter
going downward it becomes disengaged from said rack by the action of parts r, n
or o respectively whereas it will re-engage when going back.
The bar u shown in Fig. 2 has for its object to laterally remove pawl pl from the
rack bar p². It is provided with a long slit u', which serves as guide for the
finger u² on pawl p'. As the ends of said bar are bent upwards at us and down-
wards at uit will when laterally displaced by means of the button u slide on said
oblique surfaces u³ and u* thus rising, and thereby disengaging the pawl pl from the
rack bar so that the carriage k with its appliances may be then slid back to its
initial position.
In order to have the type which corre-ponds with the position of the pressing
key appear below the button i, the single types are so arranged on the board h³
that in the longitudinal as well as in the oblique direction they are inversely
arranged to the signs on the board e, the whole type board being at the same time

page_text: so far displaced in the backward direction that in its end position the foremost row
of types lies below the last row of signs of the board e.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to he performed I declare that what I
claim is :-
1. A pressing lever type-writing machine for writing letters and combination of
letters (syllables and words) by one pressure so constructed that the types on the
type board are arranged according to the number of letters in vertical rows, the
single types being in the longitudinal as well as in the oblique direction inversely
arranged to the equivalent signs on the plate e above, so that there will always appear
under a fixed pressing button that type to which corresponds the sign above which
the pressing key connected with the type board stands at the time.
2. In the typewriting machine described the construction of means for different
spacing of the paper carriage comprising a plate m provided with three recesses,
1 of the latter pertaining to types with one letter, 2 to types with two letters, 3 to
types with three letters, said plate actuating by means of the bolt n the angle
lever o to which is connected the pawl p¹ the latter moving by its action upon rack
bar på and the spring q¹ cooperating with the angle lever o the said rack bar for the
length of as many teeth as corresponds with the projection of the plate m at the
time above the bolt n.
3. In the typewriting machine as described the construction of the sign board e
consisting of a rectangular frame on which a conical opening e' is arranged for each
sign said opening to receive the button f' of the pressing lever f³.
4. In the construction of the typewriting machine as described, means for
disengaging the pawl p' from the rack p comprising a bar u resting with inclined
ends us and in the frame k and having a slit ul for guidance of the finger u*
connected with the pawl p'.
CHITO
Two way
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C., Agents to Applicant.