Year: 1888

page_text: I, FREDERICK MYERS, of 56, Huskisson Street, Liverpool, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
follows
-
This invention relates to a type writing machine in which the type are arranged
above the printing roller or platen upon the under surface of a horizontal disc, the
said disc being rotated into a given position for each type thereon, the relative amounts
of such rotation depending upon the relative lengths of the type hev levers, and the
relative distances to which they are depressed
The object of the invention is to construct a strong and comparatively cheap
machine, and one which shall at the same time be easily and quickly worked by means
of the ordinary keys placed in front of the machine
On one end of the main frame of the apparatus is mounted an upright frame,
and on the other, an overhanging standard The main frame carrying the aforesaid
frame and standard, and almost the whole of the mechanism, is pivoted in an approxi-
mately horizontal position to a lower fixed machine bed, the pivots passing preferably
through arms extending from the back edge of the main frame The main frame 19
held normally in its elevated position by means of a spring or springs or their
equivalent The upward movement of the main frame is controlled by an adjustable
stop, which is preferably fitted with a buffer block, a similar buffer or buffers being
preferably also provided for the frame to strike against the termination of its
downward movement
The type keys are preferably arranged in three parallel rows at the front of the
machine The same keys which are used for printing the large chiractors may also
be used for printing the small characters, and the figures in the manner hereinafter
described Each type key is attached to the front end of a key lever, all the key
levers being carried by a horizontal main shaft which passes through their rear ends,
and is supported in bearings preferably on the main fime and upright frame afore-
said The key levers are preferably connected to the main shift by a long key or

page_text: feather which passes through a suitable slot in the eye of each lever, so that the shaft
is rotated for a certain distance whenever a key lever is depressed Or the eye of
each key lever may be provided with a feather and a long slot may be formed in
the main shaft The key levers corresponding to one row of type keys are of a
different length from those belonging to another row, so that a key in one row, when
depressed to a given distance, would produce a different amount of movement in the
main shift from that which would be produced by a key in another row, when
depressed to the same distance Each of the key levers is guided preferably at or
near its outer end by guiding slot, against the lower end of which it strikes when
depressed to a certain distance The slots corresponding to each row of type keys
are preferably formed in a vertical rib extending across the main frame below the
levers No two slots in the same rib have the same depth, so that each key in a row
is depressed to different point, producing different amount of rotation in the main
shaft The depth of the slots in each rib is so arranged (having regard to the
varying lengths of levers) that each type key when depressed will rotate the shaft
through a different angle from that of any other key The key levers are, after each
depression, returned to their normal position by a spring or its equivalent, and their
upward movement is controlled by a buffer arrangement of any suitable description
To avoid depressing all the levers, eich time a type key is moved, the slots in the
lever eyes are made wider than the width of the feather on the main shaft One
edge of the feather is held normally (by a spring or counterweight) against the
corresponding edges of all the slots, so that the lost downward movement of a hey
lever will actuite the shaft The greatest movement of which a key lever is capable
will not, however, cause the shaft to rotate so far as to bring the opposite edge of the
feather in contact with the corresponding sides of the slots of the other levers, ind
the latter will consequently remain stationary After a lever is released the shaft is
returned to its normal position by the spring aforesaid
A finger bar may be arranged on the front of the main frame, by which it may be
depressed independently of the keys for a purpose hereinafter to be explained
The main shift carries a toothed segmental wheel, which gears with a similar wheel
on an upright shaft carried in bearings on the upright frame afore-uid
The upper
end of the said shaft carries a toothed segmental arm which projects for some distance
in a horizontal direction over the machine The sud arm is connected with a spring
or its equivalent, which returns it to its normal position whenever it is released
A buffer or stop is also provided for the arm to strike against on its return move-
ment The spring and buffer aforesaid may be attached to any convenient part of
the machine
The type are carried on the under side of a horizontal type wheel or disc, which is
capable of rotating upon a vertical pivot supported in any convenient manner upon
the machine, and above the printing platen hereinafter described, and in such a
position that the right hand edge of the type wheel lies in proximity to the standard
aforesaid, while its axis les approximately in the same vertical plane as the axis of
the printing platen The type face in a downward direction, and are arranged
preferably in three groups at a short distance from the periphery of the wheel and
approximately in a circle concentric therewith One group contains the capitals and
the stops or signs most frequently used therewith, a second group embraces the small
letters with their usual stops, etcetera, while the third group includes the numerals
and those stops, signs, or characters which are seldom used
A horizontal disc is mounted loosely above the type wheel upon the vertical pivot
aforesaid, and is provided with a hand wheel by which it may be turned The whole
or a portion of the periphery of this disc is provided with teeth into which the teeth
on the segmental arm are geared, the disc being connected with the type wheel, so
that the lattor may revolve therewith, by means of a spring pin or its equivalent on
the type wheel (or if preferred on the disc) The disc carries three holes on or near
its periphery, corresponding to the three groups of type on the type wheel, into any
of which the spring pin may be inserted, according to the group of type with which

page_text: it is desired to print It will be obvious that other mechanism might be employed
for connecting the main shaft with the type wheel, but at present I prefer the foregoing
arrangement
Near the outer edge of the type wheel there are placed number of holes corre-
sponding to and in the same relative angular position as the type, each hole being
preferably diametrically opposite the particular type corresponding to it
A locking pin is arranged to engage with one of these holes each time the main
frame is depressed This pin is placed below that side of the disc remote from the
side against which the printing platen is pressed and it is carried by a locking arm
attached to an oscillating rod supported preferably by the upright frame and standard,
and lying parallel to the main shaft The point of the pin is tapered so that it may
readily enter one of the holes to adjust and lock the type wheel in the exact position
for printing
One end of the oscillating rod is provided on the same side as the
locking arm with a horizontal arm, which is connected by link with the fixed
machine bed By this means the locking pin is rused and locks the wheel at each
depression of the main frame The type wheel is made of light material so that the
side engaged by the locking pin may be sprung slightly upwards by the said pin, and
thus the type on that side of the wheel immediately above the printing platen are
prevented from coming in contact with the latter Or the locking arm may carry
a thin strip of cloth or similar material, which covers the type immediately over the
platen
An abutment or bearing roller mounted on the standard rests against the upper
surface of the type wheel at the printing side thereof and directly above the printing
platen By this means the printing platen when used to print as hereinafter
described, is prevented from bending the type wheel
The printing platen or roller is supported in any convenient manner on a platen
frame which slides in binged guide or bed The end of the platen is provided with
a whool having a number of notches into which a spring pin or pawl engages itself,
holding the platen in any desired position The distance between each of the notches
is equal to the distance required between the lines of writing or printing One side
of the hinged bed is hinged or pivoted to the upright frame and standard aforesaid or
in other convenient manner The other side is supported upon an adjustable arm
by means of a tail on the hinged bed The adjustable arm is preferably carried by
an upright rod attached to the fixed machine bed The depressing of the main frame
causes the type wheel to be brought down upon the printing platen as hereinafter
described
The depressing of the pivoted main frame also causes the platen frame to be moved
longitudinally the necessary distance for spacing the letters This may be effected
as follows A toothed rack is supported in brackets attached to the hinged bed, and
has at or near one end a horizontally projecting pin The sliding platen frame has
pivoted to it pawl, which engages the teeth of the toothed rack in one direction
only A spacing finger having an inclined or wedge shaped termination is secured to
the fixed bea and projects upwards with its point in close proximity to the rack pin
aforesaid As the main frame is depressed, the rack pin is forced down the inclined
end of the spacing finger aforesaid and causes the rack and consequently the platen
frame to be drawn along the distance necessary to space a letter or other character
The rack having been drawn along the required distance, the pin travels, during any
further movement of the main frame, along the vertical side of the spacing finger
without operating the rack On the upward movement of the main frame the rack
is returned to its original position by a spring When the sliding platen frame is to
be withdrawn, the rack pawl may be thrown back out of gear
In order to space the words, the main frame may be depressed by the finger bar
aforesaid Or a separate word spacing lever may be employed instead of the finger
bar to actuate the rack A gap is left between the groups of type on the type wheel
in order that the wheel when depressed in spacing a word may not come in contact
with the platen

page_text: The sheet of paper is held in position on the platen by means of a roller which lies
against the platen
The roller is mounted between two arms which are pivoted to the sliding platen
frame The roller is held in contact with the printing platen by a spring or springs,
which press against the aforesaid arms One of these arms has an extension by means
of which the roller may be drawn away from the platen when the paper is to be
inserted or adjusted To fix a sheet of paper in the machine, the edge of the sheet
is first slipped under the platen, being guided by a guide The roller is then thrown
back, the edge of the paper turned over the platen, and held in position thereon by
releasing the roller
The type may be inked previous to each impression as follows,
The ink is placed upon a roller of absorptive material This roller bears against
the type, and is carried by a spring pivoted or counterweighted lever, which is pivoted
at a convenient point of the framework, so as to bear with a constant pressure on the
type The type required to print is drawn across the ink roller each time the type
wheel is rotated previous to and after printing
A warning bell such as is usually found in type writing machines may be placed
in any convenient position so as to ring when a line is almost complete
The mode of action is as follows
-
The type wheel is first adjusted so that its spring pin or catch enters the hole in
the actuating disc corresponding to the group of type with which it is desired to print
A key is depressed and causes a partial rotation of the type wheel by means of the
key lever belonging to the said Ley, and the mechanism connecting the said lever
with the actuating disc The key lever strikes the bottom of its guiding slot as
soon as the type wheel has been rotated sufficiently to bring the corresponding type
into position for printing By continuing the pressure on the key, the pivoted main
frame is depressed This causes the oscillating rod to travel in a downward direction
and to be oscillated by means of its terminal arm, and the link connecting the latter
with the fixed bed The oscillation of the rod raises the free end of the locking arm
and causes the locking pin to enter the hole in the side of the type wheel just above
it, and to spring the said side slightly upwards as before described
During the first part of the downward movement of the main frame, the rack pin
slides down the inclined spacing finger and the printing platen is consequently
drawn along into the proper position for printing Owing to the rate of downward
travel of the type wheel being greater than that of the platen, the two approach
each other during the depression of the main frame, and by the time the latter has
descended to the buffer, the platen has pressed the paper against the type wheel and
produced an impression The key being released, the key lever, type wheel and
main frame are returned to their normal position by their respective springs or
counter weights, the spacing finger is withdrawn from the rack pin, and the rack
returns to its original position by its spring
The machine is now ready for another or the same key to be depressed to produce
the next impression
On the completion of a line, the hand wheel or disc on the
platen is turned in a given direction, the line spacing pawl is therefore depressed and
the paper moved the distance required to print the next line
In describing the foregoing machine it has been assumed that the matter was
printed from left to right The machine could, however, with slight modifications be
adapted to print from right to left Also the style of the printed characters may be
varied by having a series of similar type wheels, each bearing characters of a
particular style, any one of which wheels may be readily changed for any other
It must be distinctly understood that I do not limit myself to the exact details of
the apparatus herein described as the same may be modified without materially
departing from the essential principles of the invention
For instance, instead of placing the type upon a type wheel, the former may
be carried by the segmental arm aforesaid, the arm being lengthened so as to
bring the type to the right hand side of the machine as in the case of the type

page_text: wheel The type are arranged in an arc of a circle having its centre in the axis
of the shaft carrying the segmental arm A convenient way of arranging the
three groups of type is to place each group on one side of a triangular bar which
is pivoted on the arm, so is to be capable of being turned about its longitudinal
AXIS One end of the bir is provided with hand wheel by which it may be
turned, and a small wheel is also placed on the axis having three equidistant
nicks or holes in its periphery with any of which spring piwl may engage, so
as to hold the bar firmly in position with any desired side downwards
Dated this 2nd day of June 1888
WM P THOMPSON & Co,
Of 6, Lord Street, Liverpool,
Patent Agents for the Applicant

page_text: I, FREDERICK MYERS of 56 Hushisson Street, Liverpool in the County of Lancaster,
Engineer, 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 are arranged:
above the printing roller or platen upon the under surface of a horizontal disc, the
sud disc being rotated into a given position for each typo thereon, the relative
amounts of such rotation depending upon the relative distances to which the type key
levers are depressed
The object of the invention is to construct strong and comparitively cheap
machine, and one which shall at the same time be easily and quickly worked by means
of the ordinary keys placed in front of the machine
The invention may be described by reference to the accompanying drawings, in
which,
Figure 1 is an end elovation of the machine
Figure 2 is a plan with some of the upper portions removed, and parts broken
away
Figure 3 is a plan of the upper portion of the maclune, the keys, key lovers, and
parts of framing being removed
Figure 4 is a front elevation of the machine with parts removed
Figure 5 is an elevation of the reverse end of the machine to that shown in Figure 1,
part being in section, and parts removed
Figure 6 shows a device for spacing the lines
Figures 7 and 8 are plan and elevation respectively of a modified arrangement for
carrying the type
A is the main frame of the apparatus on which is mounted the upright frame B,
and the standard B¹ A¹ is the stationary machine bed
The main frime A, carrying
the frame B, standard B¹ and almost the whole of the mechanism, is pivoted to tho
fixed machine bed A¹ at A², Figure 1, the pivots pissing preferably through the
arms A³ extending from the lower back edge of the main frame
The mun frame A is held normally in an elevated position (as shown) by means of
a spring A*, or its equivalent, Figure 1, which is introduced between the said framo A
and the fixed bed A The spring is held in position by a core a³ at each end thereof,
or by having its ends inserted into holes in the frame and bed The upward move-
ment of the frame A is controlled by the adjustable stop a³, which is preferably fitted
with a buffer block at, a similar buffer or buffers as being also provided for the frame
to strike against at the termination of its downward movement
The type keys C are preferably arranged in three parallel rows at the front of the
machine is shown in Figures 1 and 2
The same keys which are used for printing the large characters may also be used
for printing the small characters, and the figures, in the manner hereinafter
described.
4

page_text: Each type key is attached to the front end of type key lever O¹, all the levers
being carried by horizontal hey lever shaft D, which passes through their rear ends,
and is supported in bearings b and on the frumes B and B' respectively
The type
hoy levers are connected to the shaft D by a long key or feather d, Figures 4 and 5,
which passes through suitable slot d' in the eye of ench lever, so that the shaft
15 1otated for a certain distance whenever a key lover is depressed Or the eye of
each type hey lever may be provided with a feather, and a long slot may be formed
in the main shaft The type hey levers corresponding to one row of type keys are of
a different length from those belonging to another row, so that a key in one row, when
depressed to a given distance, would produce a different amount of movement in the
shaft D from that which would be produced by a key in another row, when depressed
to the same distance Each of the type key lovers is guided preferably at or near its
outer end by guiding slot c, Figure 4, ngunst the lower end of which it strikes when
depressed to a certain distance The slots corresponding to each row of type keys are
preferably formed in vertical guiding and striking rib extending across the
main frame below the levers
No two slots in the same rib C³ have the same depth, so that each key in a row is
depressed to a different point, producing a different amount of rotation in the
shaft D The depth of the slots in each rib is so arranged (having regard to the
varying lengths of the type key levers) that each of sud levers, when depressed, will
rotate the shaft D through a different angle from that of any other lover
The type
key levers are, after each depression, returned to then normal position by a spring c¹,
preferably placed below each, and their upward movement is checked by a buffer
arrangement, consisting preferably of a rod c² covered with india rubber c³ and passing
from the frame B to the standard B¹, and bearing against the top edges of the levers
To avoid depressing all the type key levers, each time a type key is moved, the slots d'
in the lever eyes are made wider than the width of the feather d on the type key lever
shaft, as shown in Figure 5 One edge of the feather is held normally by a spring f,
Figure 3, hereinafter described, or by other equivalent means against the corresponding
edges of all the slots, so that the least downward movement of a type key lever will
actuate the shaft The greatest movement of which a type hey lever is capable will
not, however, cause the shaft to rot ite so far as to bring the opposite edge of the
feather d in contact with the corresponding sides of the slots of the other lovers, and
the latter will consequently remain stationary After a lever is released, the shift is
returned to its normal position by the spring faforesaid
A finger bar E is arranged on the front of the main frame A, by which it may be
depressed independently of the heys for a purpose hereinafter to be explained
The
The shaft D carries a toothed segmental wheel D₁, which gears with a similar
wheel F¹ on an upright shaft F carried in boarings 6 on the upright frame B
upper end of the shaft F carries a toothed segment il arm F³, which projects over the
machine for some distince The said arm is connected with the spring faforesaid or
its equivalent, which returns it and the lever shaft D to their normal positions when-
ever the latter are released A buffer or stop f¹ is also provided for the arm F² to
strike against on its return movement
The spring and buffer aforesaid may be attached to any convenient part of the
machine, but preferably they are secured to an upright rod G which passes through
an opening in the main frame A, and is secured to the fixed bed A¹, (Figure 5) the
said rod being also employed for another purpose as will be hereinafter explained
The type are carried on the underside of a horizontal type wheel or disc H,
Figures 3 and 4, which is capable of rotating upon a vertical pivot h
This pivot is
preferably carried by a saddle ² which is mounted above the printing platen Ⓡ here-
inafter described in such a position that the right hand edge of the type wheel lies
in proximity to the standard B', while its axis lies approximately in the same vertical
plane as the axis of the printing platen The saddle is supported in any suitable
minner, prefer bly by honzontal rods J J1, which pass through its ends is shown,
the rod J being firmly secured to the standard B¹ and frame B, and rigidly fixed to
the saddle, and the rod J¹ passing freely through the latter and being supported in

page_text: suitable bearings on the fiame B and standard B' within which it can oscillate for a
reason hereinafter set forth The type H' face downwards, and are arranged preferably
in three groups as shown, at a short distance from the periphery of the wheel and upon
a circle concentric therewith One group contains the capitals and the stops or signs
most frequently used therewith, a second group embraces the small letters with their
usual stops, etcetera, while the third group includes the numerals and those stops,
signs, or characters which are seldom used
A horizontal disc K is mounted loosely above the type wheel upon the vertical
pivot itself, or upon the elongated boss h of the type wheel which surrounds the
pivot The whole or a portion of the periphery of the disc is provided with teeth k
into which the teeth on the segmental um F are geared, the disc being connected
with the type wheel so that the latter may revolve therewith by means of a spring
pin K or its equivalent on the type wheel (or it preferred on the disc) The disc K
carries three nicks or holes K³ on or near its periphery corresponding to the three
groups of type on the type wheel, into any of which the spring pin may be inserted,
according to the group of type with which it is desired to print The spring pin is
provided with an extension K, which serves as a handle for turning the type wheel
when adjusting it to a fresh group of type With a spring pin of this description, the
pin can be readily disengaged, and the wheel turned at one operation by means of a
finger or thumb
It will be obvious that other mechanism might be employed for connecting the
main shaft with the type wheel, but at present I prefer the foregoing arrangement
Near the outer edge of the type wheel there is placed a number of holes H³,
corresponding to and in the same relative angular position as the type, each hole
being preferably diametrically opposite the particular type corresponding to it This
arrangement may be seen in Figure 3 A locking pin L is arranged to engage
with one of these holes each time the main frame is depressed This pin is placed
below that side of the type wheel which is remote from the side against which the
printing platen is pressed, and it is carried by a locking arm L' attached to the oscil-
lating rod J¹ aforesaid, the point of the pin being tapered so that it may readily enter
one of the holes H to adjust and lock the type wheel in the exact position for
printing The end of the oscillating rod J' projects through its bearing on the
frame B, and is provided with a horizontal arm J which is connected by a link J*
with the fixed bed A¹ (Figure 1), the said link in this instance passing through a
hole in the main frame formed for the purpose By this means the locking pin Lis
raised, and adjusts and locks the type wheel at each depression of the main frame
The type wheel is made of light material so that the side engaged by the locking pin
may be sprung slightly upwards by the said pin, and thus the type on that side of the
wheel, immediately above the printing platen, are prevented from coming in contact
with the latter Or the locking arm may carry a thin strip of cloth or similar material
which covers the type immediately over the platen
An abutment or bearing roller ³ carried by a bracket * attached to the standard,
rests against the upper surface of the type wheel at the printing side thereof, and
directly above the printing platen By this means the printing platen is prevented
from bending the type wheel when brought into contact with it, in order to print as
hereinafter described
The printing platen or roller R, (Figures 2 and 5) is supported in any convenient
manner on the frame R', which slides in a hinged guide or bed S supported upon the
main frame The end of the platen R is provided with a wheel r having a number of
notches, Figure 6, into which a spring pin or pawl, engages itself, holding the
platen in any desired position The distance between each of the notches is equal
to the distance required between the lines of writing or printing One side of the
bed S is hinged or pivoted at s to the upright frame B, and to the standard B¹, or in
other convenient manner The other side is supported upon the adjustable arm S by
means of the tail S₁ of the hinged_bed The idjustable irm S2 is preferably carried
by the upright rod G aforesaid The depressing of the main frame A causes the ty pe
wheel H and the printin; platen R to be brought into contact with each other

page_text: Referring to Figures 2, 4 and 5
The depressing of the pivoted mun frame A also causes the platen frame R¹ to
be moved longitudinally the necessary distance for spacing the letters This may be
effected as follows
A toothed rack T is supported in brackets attached to the hinged bed S, and has
at its end a pin t¹ The sliding frame R' has pivoted to it a pawl which engages the
teeth of the toothed rack T in one direction only
A spacing finger T' having an inclined or wedge shaped termination tª is located
in such a position that its incl ned portion projects upwards with its point in close
proximity to one side of the rack pin t' as in Figures 2 and 4 The spacing finger 18
arranged in such a manner that on the depression of the main frame, the pin and the
inclined surface of the finger are brought into sliding contact, which causes the rack T
and consequently the platen framo R to be drawn along the necessary distance to
space a character or word The spacing finger T¹ may be secured to the fixed frame A¹
prefer however to mount it upon the frame B (preferably upon its inner side) in
such a manner that it is capable of sliding thereon in an approximately vertical
direction, being guided by a suitable device, such as by a headed pin t in the frame
working in a slot in the spacing finger, as in Figures 2, 4, and 5 The lower end of
the finger is jointed to one end of a lever to which oscillates at or about its centre on
the pivot carried by the fixed bed A¹, the other end of the lever being pivoted to the
main frame A, at or near its front edge As the frame is depressed, the inclined end
of the spacing finger is forced upwards against the side of the pin t¹ aforesaid, and
causes the rack T and consequently the platen frame R₁ to be drawn along the distance
necessary to space a character or word The rack having been drawn along the
required distance, the pin t¹ rests, during any further movement of the main frame A,
against the vertical side of the spacing finger T, without operating the rack T On
the upward movement of the main frame the rack is returned to its original position by
a spring When the sliding frame R³ is to be withdrawn the pawl t may be thrown
back out of gear
In order to space the words, the frame A may be depressed by the finger bar E
instead of by a type key Or a separate word spacing lever may be employed instead
of the finger bar to actuate the rack
A
A gap H³ is left between each two groups of type on the type wheel, in order
that the type may not come in contact with the platen when spacing a word
hole H larger than the locking pin L is also formed between each two groups of
holes H, so that the said pin when raised in spacing a word, may not come in contact
with the type wheel
means of a roller ³,
is mounted between
The roller is held in
The sheet of paper Q is held in position on the platen R by
Figures 2 and 5, which hes against the platen R The roller
two arms, which are pivoted at to the sliding frame R¹
contact with the printing platen by a spring or springs, which press against the
arms One of these armis has an extension r' by means of which the roller may
be drawn away from the platen R when the paper is to be inserted or adjusted
fix a sheet of paper in the machine, the edge of the sheet is first slipped under the
platen R, being guided by the guide, The roller is then thrown back, the edge
of the paper turned over the platen and held in position thereon by releasing the
roller
The type may be inked previous to each impression as follows
-
Το
The ink is placed upon a roller M, Figures 3 and 4, of absorptive material This
roller bears against the type and is carried by a spring pivoted or counter-weighted
lever M¹ which is pivoted at a convenient point of the framework, preferably upon the
oscillating rod J¹, so as to bear with a constant pressure on the type The type
required to print is drawn across the ink roller each time the type wheel is rotated
previous to and after printing
A warning bell such as is usually found in type writing machines may be
placed in any convenient position, so as to ring when a line is almost complete

page_text: The mode of action is as follows
The type wheel His first adjusted by means of the extension K so that its spring
pin K enters the hole K in the disc K corresponding to the group of type with
which it is desired to print A type key is depressed and causes a partial rotation
of the type wheel by means of the type key lever C belonging to the said key and
by means of the lever shaft D, the gearing D' F', the segmental arm F and the
actuating disc K The type key lever strikes the bottom of its guiding slot c as soon
as the type wheel has been rotated sufficiently to bring the corresponding type into
position for printing By continuing the pressure on the key, the pivoted main
frame A is depressed This causes the oscillating rod J' to travel bodily in a
downward direction and to be oscillated by means of its terminal arm J³, and the
link J* connecting the latter with the fixed bed The oscillation of the rod J¹ raises
the free end of the locking arm L' and causes the locking pin L to enter the hole in
the side of the type wheel just above it, and to spring the said sido slightly upwards
as before described
t¹
During the first part of the downward movement of the main frame, the rack : pin
slides against the inclined spacing finger T', and the printing platen is consequently
drawn along into the proper position for printing Owing to the rate of down-
ward travel of the type wheel being greiter than that of the platen, the two
approach each other during the depression of the main frame, and by the time the
latter has descended to the buffer as the platen has pressed the paper Qnguinst the
type wheel and produced an impression The type key being released, the type key
lever, type wheel and mun frame are returned to their normil position by their
respective springs c¹f A, the spacing fingur T¹ is withdrawn from the rack pin t¹,
and the rack returns to its original position by its spring t The machine is now
ready for another or the same type key to be depressed to produce the next impression
On the completion of a line the pawl t is thrown back, the platen trame is withdrawn
the hand wheel or disc (Figure 2) is turned in the direction of the arrow (Figure 6)
so that the pawl is depressed, and the platen can now be turned so as to move the
paper the distance required to print the next line
In describing the foregoing machine, it has been assumed that the matter was
printed from left to right The machine could, however, with slight modifications,
be adapted to print from right to left Also the style of the printed characters
may be varied by having a series of similar type wheels, each bearing characters
of a particular style, any one of which wheels may be readily changed for
any other
It will be obvious that the exact details of the apparatus herein described, may
be modified to a certain extent without exceeding the scope of the invention
For instance, instead of plicing the type upon a type wheel, the former may be
carried by the segmental arm F, as in Figures 7 and 8, the arm being lengthened so
as to bring the type to the right hand side of the machine as in the case of the type
wheel The type H are arranged in an arc of a circle having its centre in the axis of
the shaft F carrying the segmental arm A convenient way of arranging the three
groups of type is to place each group on one side of a triangular bar N, which
is pivoted on the arm so as to be capable of being turned about its longitudinal
ax18 One end of the bar is provided with a hand wheel n by which it may
be turned, and a small wheel n' is also placed on the axis having three
equidistant micks or holes n² in its periphery, with any of which a spring
pawl n may engage so as to hold the bar firmly in position with any desired side
downwards
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 18 -
1 In a type writer, a series of parallel tune kev levers mounted unan a comman

page_text: turning said shaft and wheel independently of the others, in combination with one
or more guiding and striking ribs (extending transversely below the lovers and
provided with a series of lever guiding slots c, the lower closed ends of which are
located at such a distince below their corresponding levers, that each of the litter
when depressed agunst the end of its slot, moves through different and definite
angle and rotates the type wheel into a different angular position corresponding to
the printing position of the type represented by the depressed lever, substantially as
described
2 In a type writer, a series of parallel type key levers 01 each provided with an
elevating device, and type key lever shaft D, connected with a rotatable type wheel
and passing through the rear ends of said levers, in combination with a long feather d
or its equivalent in the shaft, and a series of widened slots d¹ in the lever eyes
through which said feather passes, the feather being held normally with its working
edge in contact with the corresponding edges of all the slots, and the opposite edges
of the latter being located at a sufficient distance from the corresponding edge of the
feather to permit of each individual lever buing depressed without moving the others,
substantially as set forth
3 In a type writer, a spring raised mun frame A hinged at or near its rear edge
and carrying a rotatable type wheel and mechanism for operating the same, in
combination with a finger bar E by which the said frame may be directly depressed
when spicing word, and with one or more striking ribs C by which it inny be
depressed indirectly by a type key levur as soon as the latter has moved the type wheel
into position for printing, substantially as described
4 In a type writer, a type wheel or disc, such as H, having the type arranged on
its fice in two or more groups upon one concentric circle, in combination with
an actuating disc or wheel, such as K, mounted loosely on the type wheel axis,
and spring catch device for connecting the actuating disc and type wheel
in any one of a series of positions corresponding in the number and relative
angular position to the said groups of type, substantially as and for the purpose
described
5 In type writer, the combination with the type key lever shaft D below the
platen and the type wheel H above the same, of the upright shaft F, the gear
wheels F connecting the same with the shaft D, the toothed quadrant F
on the upper end of shatt F, the actuating disc K rotatable with the type wheel and
gearing with said quadrant, the fixed buffer stop f in proximity to the quadrant, and
the spring f¹ connecting the latter with a fixed point on the machine, whereby the
viriable movements of the shaft D are transmitted to the type wheel, and the said
wheel, shaft and connecting mechanism returned to their normal positions after each
operation, substantially as set forth
6 In a type writer, a rotatable type wheel, such as H, having the type arranged on
its underside upon one concentric circle and hinged depressible main frame, such
as A carrying said wheel, in combination with concentric series of holes H' on or
near the periphery of the type wheel and corresponding in number and relative
angular position with the type thereon, _pointed locking pin L located in
proximity to said holes, an oscillatory arm L₁ carrying said pin and supported
upon the main frame A, and a lever and link arrangement such as J³ J
connecting said arm with the fixed machine bed, whereby on the depression of
the main frame the said pin L is inserted into the adjacent hole H' and
adjusts and locks the type wheel in its exact position for printing, substantially as
set forth
7 In a type writer, the combination with a type wheel H mounted above a printing
platen upon a depressible main frame A, of a series of type H' arranged on
the underside of said wheel in groups as described, the said groups being separated
by gaps H, so located that one of them is always above the printing platen when
the type wheel is in its normal position, substantially as and for the purpose
set forth

page_text: 8 In a type writer, the combination with a reciprocatory spacing rack such as T
provided with rack pin and adapted to be depressed it each operation of the
machine, of an upright spacing finger T attached to a stationary part of the machine
and located with its inclined upper end in close proximity to one side of suid pin,
subst intially as and for the purposes described
9 In a typo writer, the combination of a quadrant arm F capable of being
oscillated as described in proximity to the upper side of the printing pliten, a triangul ir
bar N Journalled in the outer end of sud arm upon in axis approximately tingential
to the path of oscillation and provided on each of its sides with a group of type
arranged as described, and an adjustable spring catch device such as n n' n² n' by
which the bar may be locked in position with any desired fice downwards, substantially
as described and shown
Dated thre 2nd day of March 1880