Improvements in Type-writing Machines.
Year: 1890

page_text: Date of Application, 20th Feb., 1890-Accepted, 5th Apr., 1890
COMPLETE SPECIFICATION.
Improvements in Type-writing Machines.
I, FERDINAND SERVUS, of Berlin, in the Empire of Germany, Manufacturer,
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:-
This invention relates to a Type-writing machine, in which the type-levers are
arranged in a semicircle. The improved machine is distinguished by extreme
simplicity of construction so that the repairs that may be required can be executed
without the aid of a skilled workman. This machine can also be very easily operated ;
the keys are placed in a convenient position for the band, so that even, when the
writing is continund for a comparatively long time the hand will not get tired. The
machine is light, does not possess any complicated mechanism, and the writing can
be effected with it as rapidly as with the best machines of the kind.
A special feature of the improved machine is the transporting mechanism which
operates with certainty and accuracy.
In the accompanying drawings I have represented two forms of a type-writing
machine embodying my aforesaid invention, one form being illustrated in Figs. 1. to 20,
and another in Figs. 21 to 64. Modifications of these arrangements are shown in
Figs. 65 to 70. In Figs. 71 and 72 are shown several positions of single parts of the
transporting mechanism.
Fig. 1 is a front view, Fig. 2 a horizontal section on the line X X of Fig. 1 and
Fig. 3 a transverse section of the type-writing machine ;
Figs. 4 to 7 are a plan and transverse sections of the transporting mechanism;
Figs. 8 and 9 indicate the engagement of the projection on the transporting
mechanism with the teeth of the rack;
Figs. 10, 11 and 12 are a transverse section of the paper roller, a side elevation
and a plan of the spring case;
Fig. 13 is a longitudinal section of the paper roller;
Figs. 14 to 18 show a longitudinal section, plan, side view and transverse section of
a modified paper roller and the parts situated in proximately to the same;
Figs. 19 and 20 represent a device for adjusting the distance between the lines ;
Fig. 21 is a front view;
Fig. 22 a plan partly in section on the lines Y Y and Z Z, Fig. 21 ;
Fig. 23 transverse section of a modified arrangement of the machine ;
Fig. 24 is a plan showing the fixation of the guide bar for the paper roller;
Fig. 25 is a transverse section on the line a¹³, x, Fig. 24;
Figs. 26 to 36 illustrate plans, transverse sections longitudinal sections and front
views of the transporting mechanism;
Fig. 37 is a front view, Fig. 38 plan, and Fig. 39 transverse section of the lower
part of the machine ;
Figs. 40 and 41 are a vertical and a horizontal longitudinal section taken through
the paper roller and parts in proximity to the same;
Figs. 42 and 43 show side elevations of the plate 55 carrying the paper roller;
Figs. 44 to 47 show a longitudinal section, side elevation horizontal section and
details of the spring case;
Figs. 48 and 49 illustrate the attachment of the string laid around the spring
casing to a carriage;
Figs. 50 and 53 are a front elevation and horizontal section of the device for
pressing the carriage;
Figs. 51 and 52 represent a vertical section and front view of the signalling device;

page_text: View of the support for the paper
roller;
Figs. 56, 57 and 58 are a vertical section side elevation and plan of the device for
fixing the ink-band;
Figs. 59 and 60 represent a front elevation and transverse section of the device for
adjusting the distance between the lines;
Figs. 61 to 64 represent means for fixing the type-lever and details of the latter ;
Figs. 65 and 66 are transverse sections of a modification of the transporting
mechanism, in which both projections engage with a single rack;
Figs. 67 to 70 show transverse sections, a plan and details of a similar modification
wherein one projection is replaced by an india-rubber-pad, and the corresponding
teeth by a roughened surface;
Figs. 71 and 72 illustrate four positions of parts of the transporting mechanism in
the movement of the paper roller to the right hand side.
The two arrangements represented differ essentially only in that in the first the
paper roller slides upon a horizontal rod secured to the frame, whilst in the latter
the roller is supported by a carriage, which rolls from one side of the machine to
the other.
The most essential feature of the improved type-writing machine consists in the
mechanism for regulating the forward movement of the paper roller, which in machines
of both categories acts in the same manner; a different form has however been
represented for each arrangement.
The Type-writing machine represented in Figs. 1 to 20 comprises a casing a which
is open in front, and in which two horizontal intermediate partitions and c are
inserted, Figs. 1 and 3. Upon the lower of these partitions are screwed the bearings
or supports of the type-levers e arranged in a semi-circle. In order to simplify the
drawing only a single row of type-levers is represented, whilst for machines having
complete alphabets it is expedient to employ two rows.
In proximity to the bearing or support are jointed to the type levers the connecting-
rods the upper end of which is connected with a rod g by means of a hinge. The
rod 9, which is provided above with a key h, slides in the vertical direction in two
holes formed in the partition b and the cover of the case. A helical spring h¹ which
surrounds the rod g, and the lower end of which bears upon the partition b, whilst
its upper end bears against a projection g' on the rod g, always tends to push this
rod upwards so that the type levers when the machine is not used, will occupy the
position shown in the drawings in which they bear against a flat pad i below the cover
of the case.
The length of the type lever is such that each type invariably strikes upon the same
place as every other type.
The downward movement of the type-levers is utilized for actuating a peculiar
transporting mechanism which automatically effects the forward movement of a paper
roller k.
This transporting mechanism consists essentially of a flap 1, Figs. 1 to 6, the
journal m of which rests in bearings n upon a bar o extending over the entire width
of the machine and firmly connected with the frame. At the front end of the flap is
arranged above an india-rubber pad p bent to the form of a semi-circle or a complete
ring. Through the opening of this pad passes the type shortly before the lever set
in action reaches its lowermost position, as indicated in Figs. 1 and 2 by dotted lines.
In this case the lever strikes the indiarubber pad and forces the front end of the flap
downwards. As soon as the lever swings upward again a spiral spring wound
upon the journal m and bearing upon the bar o will turn the flap back to its position
of rest.
A projection v arranged at the rear end of the flap when this flap is in the position
of rest shown in Fig. 5 engages with the teeth 8 of a slide t. This levert which is
about half as long as the lever o embraces the lower part and the two sides of the
latter and is prevented from falling by two transverse pieces u, u extending over the
bar. Through the medium of a device hereinafter described the tendency is imparted

page_text: to the said slide of moving towards the left hand side Figs. 1 and 2. The two lateral
parts & and w of the slide, as shown in Figs. 2 and 4, are toothed above; into the
teeth s at the rear drops the projection r above referred to. Now as soon as a type-
lever presses down the front end of the flap the projection leaves the teeth s but
shortly before this a projection v arranged at the front end of the flap engages with
the second series teeth w of the slide t, so that despite this movement of the flap the
slide will not be displaced. The projection r is not firmly connected with the flap 1,
but can be displaced in the same. Upon the part of the projection acts a spring 1
attached to the flap, and imparts to it the tendency of moving to the right hand side,
Figs. 4, 7 and 8. Accordingly as soon as the projection », owing to the said move-
ment of the flap, passes from the teeth the projection r is displaced to the right hand
side until it strikes against a stop on the flap. This stop is so arranged that the pro-
jection can only remove forwards exactly through the distance between the faces of
two consecutive ratchet teeth.
now
After the type has printed the type-lever moves again upwards; the spring
commences to act, and the rear end of the flap is lowered. The projection therefore
enters the next space between the teeth s. But as the power with which the slide t is
forced to the left hand side, Figs. 1 and 2, is greater than the tension of the spring 1.
the slide will be pushed forwards until the projection strikes against the stop
which is on the left hand side of the flap. This path of the slide corresponds exactly
to the distance between two letters.
Through the medium of this peculiar transporting mechanism the slide is always
displaced exactly through the distance equalling the distance between the faces of
two consecutive teeth. Any accidental displacement through a greater distance is
impossible, and the displacement can moreover occur only after the type-lever has
printed and is moving upwards. By making the spring for displacing the paper
roller only a little more powerful than that for displacing the movable projection the
fixed projection is prevented from striking too violently against a tooth.
described transporting mechanism however acts only when the slide with the paper
roller has imparted to it the tendency of moving to the left hand side. This takes
place in the following manner :-
The
By means of a thumb-shaped prolongation u with which the transverse piece u
on the right hand side is provided, Figs. 1, 2, 3, 19 and 20, and which engages with
an annular groove 2 in the paper roller, the above mentioned slide is coupled with
this roller. The naves 3 of the paper roller slide upon the horizontal rod 4, Fig. 13,
which is fixed to the frame and is made square in order that the naves shall not turn
upon the same. The naves 3 are provided with annular grooves wherein the head-
pieces 5 of the paper roller turn, thus the naves 3, which are not otherwise connected,
cannot be displaced relatively to each other.
The paper roller is hollowed out to such an extent that a spring case 6 arranged at
or near the middle of the rod 4 will not prevent the movements of the roller, Figs 3,
10 and 13. The spring case is placed within the forked part of the rod 4, Figs. 10,
11 and 12, and in the interior of the same is provided a spiral spring 7 upon the pin
or journal 8. The latter is provided in the known manner with a ratchet wheel 9
and a pawl 10 for enabling the tension of the spring to be changed according to
requirements. A draw-band 11 secured at one end to the spring case 6 and laid
around the same, and at the other end is fixed to the paper roller, Fig. 13, so that
this roller is always pulled to the left hand side. The transporting movement herein-
before referred to of the projections only enables the roller and the slide coupled with
it to move forward by steps.
When the roller has reached the end of its displacement to the left land side, it is
pushed back by hand whereby the spring 7 is again put under tension.
In this displacement of the roller the flap performs short upward and downward
movements in the manner represented in Figs. 71 and 72.
The four positions in Fig. 71 are those of the movable nose, that is to say of the
one which is at the rear end of the flap; the corresponding diagrams in Fig. 72
indicate the simultaneous positions of the fixed projection that is to say that situated

page_text: nearest to the buffer. At the beginning of the displacement the projection on the
flap will occupy the position represented at 1. The movable projection (on the left
hand side) is carried away by the rack and passes to the position II, while below the
fixed projection (on the right hand side) passes a tooth. In the further displacement
of the rack to the right hand side the back of the following tooth raises the movable
projection and with it the rear end of the flap, the front end moving downwards with
the fixed projection so that the latter enters a space between the teeth and will
occupy the position shown in III. In the case of the fixed projection the back of
the following teeth then begins to act, raises the projection and the front end of the
flap, lowers the rear end and forces the movable projection into the next space
between the teeth, so that both are in the position IV.
In the further displacement of the slide with the racks only the two positions III
and IV are concerned. Accordingly the flap vibrates only in these positions until
on stopping the slide for a moment the position II and then the position of rest 1 is
reached.
The two naves of the paper roller are prolonged to the outside Fig. 13, and here
carry rollers 12 upon which the inking band 13 is wound, Figs. 1, 2 and 13. This
band is conducted over two horns 14 fixed to the slide and extends across the roller
in such a manner that it just covers the places upon which the types strike, Fig. 2
and 13. In lieu of a draw-band, the inking band can be employed for displacing the
paper roller. This modification of the machine is represented in Figs. 14 to 18. In
this instance a spring case 15 is arranged outside the paper roller in a fork at the left
hand end of the rod 41. The inking band 16 is fixed to the said case and laid around
the same.
It is supported by a roller 18 fixed to the nave 17 situated on the left
hand of the roller and conducted over the paper roller to the inking band roller 19 at
the end of the paper roller which is on the right hand side. This latter inking band
roller is arranged similarly to that used in the arrangement herein before described.
In order to enable the paper to be introduced between the slide t and the paper
roller, the bar o, Figs 1, 2, 3, 5 and 6, is adapted to turn upon the pins or journals 20
which are arranged at or near the central part of the same on the sides of the casing.
Through the medium of two springs 21 likewise attached to the casing the bar is
turned in such a manner that the lower front edge of the slide will bear upon the
roller.
To provide means for judging whether the roller has turned exactly through the
distance between two lines, upon the bottom of the annular groove are arranged two
depressions 22, Figs. 19 and 20, with which engages the point of the finger u¹ which
forms a spring for this purpose.
By gradually turning the paper roller further the sheet of paper to be written
upon is conducted between the slide and the paper roller and finally removed
from the machine through an opening 23, Fig. 3 formed in the rear side of the
casing.
The machine illustrated in Figs 21 to 64 consists essentially in an upper part A and
a lower part B. The upper part comprises the type levers and devices for actuating
them, whilst the lower part comprises the paper roller which is automatically displaced
to the left hand side, and the transporting mechanism, Figs. 21 to 23. The upper
part A has a head plate 24 and a bottom plate 25 which are held at a definite distance
from each other by a number of vertical columns 26. Through the medium of other
columns 27 arranged in like manner a horizontal plate 28 of nearly semi-circular shape,
which is situated between the head plate and the bottom plate, is secured to the head
plate. Outside the columns 26 the head plate is provided below with a groove 28,
and the bottom plate has above a similar groove 29, into which two grooves are
inserted a plate 30. This plate closes the space between the head plate and the rear
plate towards the rear side of the machine."
Upon the bottom plate 25 are arranged in two semi circles the bearings 31 for the
type levers 32, Figs. 21, 22, 23, 61 to 64. The bearings for the row at the rear are
secured by screws upon the bottom plate 25, and those for the front row below the
bottom plate. In promixity to the bearings rods 33 are jointed to the type levers

page_text: (see also Figs. 61 to 64), which rods are connected through the medium of hinges
with the vertical rods 35 provided above with the keys 34, Figs. 21, 22, 23. Each
rod 35 is continually forced upwards by the helical spring 37 bearing against a
stop 36 on the rod 34 and upon the intermediate plate 28. In this case the type
levers bear against a felt pad 38 which is fixed to a strip of wood 39 screwed upon the
head plate of the machine.
The length of the type levers, as in the arrangement illustrated in Figs. 1 to 20, is
such that all the types will strike one point of the place where the printing takes
place.
The lower part of the machine consists essentially of a wooden frame upon whose
horizontal bottom plate rolls a carriage supporting the paper roller, a suitable device
imparting to the said carriage the tendency to roll to the left hand side, this movement
being however regulated by a ratchet mechanism.
The wooden frame consists of two vertical sides 40, which are connected by means
of a horizontal bottom-plate 41, Figures 21, 23, 37, 38, and 39. Hooks 42 on the
outer surfaces of the sides 40 extend over pins 43 on the upper part when the latter
is in its place.
If this connection is severed and the upper part is removed, the lower bearings for
the type-levers are uncovered. In order to uncover the upper bearings the plate 30 is
pulled outwards. Accordingly the type levers can be adjusted without difficulty by
loosening the two small screws of the bearings for the said lever and tightening them
again, after the bearing has been shifted in a suitable manner.
Two bars which protrude to the front are screwed upon the sides from above; to
the bar 44 situated on the left hand side is secured a clamping spring 45,
Figs. 21, 23, 37 and 38 below which is placed the forked end of the bar 46
extending across the whole width of the machine, Figs. 21 to 25. The other end of
this bar is removably connected with the bar 47 screwed upon the right hand side 40
(see also Fig. 38) in the following manner. Through a hole in the bar 46 extends
a pin 48, fixed to the bar 47 Figs. 21 and 22. A lever 50 adapted, to turn in the
horizontal direction upon the pin 49 of the bar 46 can be caused to engage with a
recess in the pin 48. If therefore the lever 50 is pressed to one side it will liberate
the pin 48, so that the bar 46 can be taken from the latter and displaced to the right
hand side if it is to be removed altogether. The main object of this arrangement is
however to enable the carriage to be optionally displaced to the left hand side, as will
hereinafter be specified.
Below and on its two sides, the bar 46 is surrounded to about one-half of its
length by a slide 51 which is rigidly connected with the frame of a carriage C,
Fig. 23. The rectangular frame is composed of two bars 52, Figures 37 to 39, and
two bars 53. To each of the bars 52 are connected two friction-rollers 54; the
bars. 52 protrude so far to the front of the bar 53 that a vertical plate 55 provided
above with a horizontal flange can be fixed to them. Upon the horizontal flange is
secured the aforesaid slide 51.
Between the plates 55 the paper-roller 56 is supported in the following manner.
Its journals turn in holes formed in the arms 57 Figs. 40 to 43. These arms are
connected with each other by a horizontal shaft 58, the journals of which can turn
in an opening 59 provided in the plate 55 (see also Figs. 54 to Fig. 57). In order to
enable the shaft 58 to be displaced in a vertical direction the openings 59 for the
journals of the same are made of elongated shape. Between the arms 57 and the
plate 55 is arranged a sliding-piece 60 which embraces the shaft 58 and can be fixed
by means of a screw 61 adapted to be displaced in an elongated hole.
In order that the paper roller shall always be pressed upwards against the slide 51,
Fig. 23 the shaft 58 is surrounded by two helical springs 62 Figs. 40, 41 and 55, the
ends of which are secured to the shaft and to the sliding-piece 60.
Nearly axially with the paper-roller, pins 63 are secured to the plates 55 and serve
to receive the inking band. The inking-band 65 is adapted to pass over two horns
connected with the horizontal parts of the plates 55 and is conducted over the roller

page_text: in such a manner that the parts of the same which are struck by the types are covered
by the inking band, Figs. 22, 38, 57 and 58.
To the carriage, and therefore to the slide and paper-roller, is imparted the
tendency by the following device to move to the left hand side. Upon the bar 52
placed on the right hand side of the carriage C, Figs. 38 and 39 is fixed, by means of
a conical pin 67, a string 68, the said pin being placed in a round opening, which is
open below, of the bar (see also Figs. 48 and 49). The pin is held in its position
by keeping the string always under a tension. For this purpose the string is laid
around a spring case 69 arranged in or near the middle of the bottom-plate 41 of the
lower part and below the same, Figs. 38 and 39. The spring-case is adapted to turn
upon a pin 70, Figures 44 to 47, which is immovably supported in a case 71, but
is usually prevented by ratchet wheel and pawl from turning. If the string is
to be put under more or less tension, that is to say if the carriage is to be driven
with more or less power to the left-hand side, the aforesaid pin 70 is suitably
adjusted.
In order that the rear part of the carriages may not turn over, on the bar 53 at
the rear (Figs. 38, 5 and 53 is fixed to pressing roller 72 supported in a U-shaped
arm 73. This arm oscillates upon a pin 74, and is forced by a spring 76 acting upon
the stop 75 on the bar against the lower edge of the bottom plate 25.
The bow-shaped wire 77, Figs. 23 51 and 52, secured to the bar 52 on the left
hand side, has for its object to enable the hammer 78 to strike the bell 79 arranged
on the left-hand side below the bottom plate when the carriage C moves forward.
Before the carriage reaches its extreme position on the left-hand side, the bow-shaped
wire 77 seizes that part of the pin of the hammer which protrudes above the bottom
plate, turns it upon the pivot 80 and shortly afterwards releases it again. The hammer
swinging beyond its position of rest causes the bell to sound and gives the signal for
the completion of a line. In the backward movement of the carriage the bow shaped
wire moves out of the way to the left as soon as it reaches the hammer. Accordingly
the latter cannot move outward sufficiently for causing the bell to sound. The
distance between the lines is also is this arrangement adjusted by turning the paper-
roller by hand to such an extent that a pin 82, engaging with a depression 81
(Figs. 9 and 60) at the front end of the roller will snap into the next depression.
In this case, the pin is fixed to a spring 83 screwed to one of the arms 57 carrying
the roller.
As in the machine represented in Figs. 1 to 20 the forward movement of the
carriage is regulated by a flap 84 arranged upon the stationary bar 46, and having a
fixed projection 85 and a movable projection 86, Figs. 21, 22, 23 and 26 to 36.
The flap is pivoted through the medium of a short shaft 87, the journals 88 of
which turn in bearings 89. By two helical springs 90 surrounding this shaft to the
flap is imparted the tendency to turn in such a manner that the movable projection 86
at the rear will engage with the teeth 91 of the slide 51. As soon as a type-lever
strikes an indiarubber pad 92 at the front end of the flap, the fixed projection 85
will engage with the teeth 93 of the slide 51. During this time the movable pro-
jection will be forced to the right-hand side by the action of the spring 94 arranged
in the interior of the flap.
As soon as the type has printed the rear end of the flap is lowered again, and the
movable projection engages with the next space between the teeth in the same manner
as above described.
Modifications which may be made in the transporting mechanism of the machines
of both categories are represented in Figs. 65 to 70.
In the arrangement represented in Figs. 65 and 66 the flap is placed parallel with
the bar carrying the same, from which it follows that both projections can operate in
combination with a single rack. The fixed and the movable projections engage
alternately with the teeth.
In the transporting mechanism represented in Figs. 67 to 70 the movable pro-
jection at the rear gears with the teeth of a slide in the same manner as above

page_text: described, whilst an india-rubber pad 95 takes the place of the fixed projection. This
pad, when the front end of the flap is pressed down, is forced upon the roughened
front part 96 of the slide, and together with the latter forms a brake for the paper
roller and acts at the moment when the tooth at the rear is disengaged. The india-
rubber pad is secured to the flap in the following manner.
The ends of the indiarubber strip are passed through the two openings 97 in a
sheet-metal strip 98, and both are screwed against the flap, the outwardly bent ends
of the india-rubber strip being turned upwards. In this case the projection at the
rear is kept engaged by means of a spring 99 which is screwed upon the flap, and
extends through an opening in the same, and bears upon the bar.
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 :-
First. A type-writing machine in which the paper roller is adapted to be displaced
upon a horizontal stationary rod, and is forced to the left hand side by a spring
arranged in the interior of the same, its movement being regulated by a ratchet
mechanism actuated by the type-lever, substantially as hereinbefore described, and
represented in the accompanying drawings.
Second. A type-writing machine, in which the paper roller is forced to the left
hand side by the inking band laid around a stationary spring case placed on the left
hand side which band is moreover fixed to the right hand side of the roller, the move-
ment of the roller being regulated by the ratchet mechanism actuated through the
medium of the type-lever, substantially as hereinbefore described and represented in
the accompanying drawings.
Third. A type-writing machine in which the paper roller is supported by a carriage
adapted to roll to and fro upon a horizontal surface and is guarded by a horizontal
bar which is ordinarily fixed, the carriage being forced to the left band side by the
pull of a spring; whilst the movement of the carriage being regulated by a ratchet
mechanism actuated by the type-lever substantially as hereinbefore described and
represented in the accompanying drawings.
Fourth. A ratchet mechanism for the paper roller, forced to the left hand side by
the force of a spring of a type-writing machine consisting of a flap adapted to
oscillate at a right angle to its longitudinal direction and arranged in such a manner
that all the type levers will pass through an opening at the end shortly before the
printing, the Hap being provided with a fixed projection whereas a movable projection
at the other end of the flap alternately with the fixed projection, engages, with one or
two teeth of the slide which embraces the lower part and the two sides of the guide
bar, substantially as hereinbefore described and represented in the accompanying
drawings.
Fifth. The arrangement of type-levers in a semi-circle or an arc approaching a semi-
circle, which type-levers are provided in proximity to their fulcrum with short inter-
mediate links upon which the pressing-rods provided with the keys having letters act
in a direct manner, and the ends of which, provided with the types all strike upon the
centre of the semi-circle or arc, in the printing, substantially as herein before described
and represented in the accompanying drawings.
Sixth. A ratcbet mechanism for the paper roller of a type-writing machine, con-
sisting of an oscillatory flap which is arranged in such a manner that each type-lever,
shortly before the printing, passes through an opening of the flap provided with an
india-rubber pad, whilst a movable projection at the other end of the flap is alternately
lowered, with the india-rubber pad, the latter being pressed against a roughened
surface of the slide embracing the lower part and two sides of the guide bar, whereas
the projection engage with the teeth of the latter substantially as hereinbefore described
and represented in the accompanying drawings.
Seventh. In the above mentioned flap the arrangement of a spring which tends to
displace upwards the end of the flap provided below with a fixed projection or an
india-rubber pad, and above with a semicircular or circular pad for mitigating the

page_text: effect of the stroke of the type-levers and a second spring which tends to displace the
movable projection to the right hand side the projection being adapted to be displaced
exactly through one pitch of the teeth, substantially as hereinbefore described and
represented in the accompanying drawings.
Eighth. In a ratchet mechanism for type-writing machines the arrangement of the
teeth in such a manner that they are equally divided and that the teeth are opposite
each other in a vertical direction to the axis of the roller, the projections engaging
in the central position of the flap with two opposite spaces between the teeth if the
movable projection occupies its terminal position on the left hand side and the latter
is moved through a division to the right hand side as soon as it is disengaged,
substantially as bereinbefore described and represented in the accompanying
drawings.
Ninth. In the carriage supporting the paper roller the arrangement of the roller
having spring supports and moving below the bottom of the upper part of the machine
and at the rear end of the same, for the purpose of preventing the carriage from
turning over-substantially as hereinbefore described and represented in the accom-
panying drawings.
Tenth. In the carriage supporting the paper-roller the adjustable support of the
paper-roller which turns in a frame whose journals are pivoted in bearings that can
be displaced in the vertical direction, for the purpose of changing the tension of the
springs which tend to turn the frame in such a manner that the roller is pressed
against the slide adapted to move upon the guide-bar, substantially as herein before
described and represented in the accompanying drawings.
1
Eleventh. In the carriage supporting the paper-roller a bow-shaped piece, which
in the movement of the carriage seizes that part of the hammer lever of a bell
which protrudes from the bottom plate shortly before the terminal position is reached,
and causes the hammer to strike by releasing it at the next moment, whilst in the
backward movement of the carriage it slides upon the lever without causing the
bell to sound, substantially as hereinbefore described and represented in the accom-
panying drawings.
Twelfth. For adjusting the distance between the lines, the arrangement of a series
of depressions on the front surface or the outer surface of the paper roller, with which
a spring pin engages, substantially as herein before described and represented in the
accompanying drawings.
Thirteenth. The arrangement of a guide-bar for the paper roller which bar is fixed
at one end by clamping and is held at the other end by turn-buckles for the purpose
of enabling the same to be lifted at the locked end and the ratchet mechanism to be
disengaged or also the bar to be removed.
Fourteenth. The arrangement of the machine in such a manner that the upper
part of the same comprises only the type-levers and their actuating mechanism so
that the lower bearings for the type-levers are uncovered if the upper part is
removed, but that the upper bearings are rendered accessible by removing the
plate which extends all around and is held in the grooves of the bottom plate and
cover plate.
Dated thie 19th day of February 1890
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant.