Improvements in Type-writing Machines.
Year: 1890

page_text: Date of Application, 24th June, 1890-Accepted, 23rd Aug., 1890
COMPLETE SPECIFICATION.
Improvements in Type-writing Machines.
I, HERBERT JOHN ALLISON, of 52 Chancery Lane, London, County of Middlesex,
Patent Agent, do hereby declare the nature of this invention, which has been com-
municated to me from abroad by The Transatlantic Machine Company, a Corporation
organized under the Laws of the State of New York, United States of America, and
having its offices in Temple Court, in the City of New York, County and State of
New York, United States of America, 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 that class of type-writing machines in which the printing
types are carried by a series of vibratory type-bars, or levers, usually arranged
radially in a circular series, and actuated by key-levers connected severally thereto,
said key-levers having finger-keys constituting a key-board; and in which a paper-
carriage supporting a platen, on which the paper to be printed upon is placed, has
movement over and across the type-bar series.
"
This invention consists in a certain novel arrangement of the key-levers and
conjunctive auxiliary levers, and in certain novel devices by which the type-bars are
fulcrumed, assembled and made adjustable, individually, in their series, whereby
simplicity and compactness in the machine structure are attained, and, whereby a
permanent alignment by the printing-types, ut their common printing-point, in the
machine, is effected. This invention further consists in certain novel features in the
spacing-key," the "finger-keys," the devices for actuating the inking-ribbon, and
the "paper-carriage." And this invention also consists in a novel form of type-bar
carrying two or more printing-types, in connection with a platen adapted to vibrate,
in the machine, in a novel manner, relatively to the printing-face of the types,
whereby two or more printing-types on a single vibratory type-bar may strike
successively upon the platen on the same printing line thereon, and thus single type-
bars in the series thereof be enabled to, individually, print two or more characters in:
succession, as, for example, a capital and a small letter of the alphabet on the paper:
carried by the platen.
Figure 1 is a plan of a type-writing machine containing features of this
invention;
Figure 2 is a plan of the same, the paper-carriage and a portion of the series of
type-bars being removed, to disclose the system of assembled key-levers and the
auxiliary-levers.
Figure 3 is a vertical, lateral section of the machine, taken on the line figure 1,.
the paper-carriage and series of type-bars being removed and only a single key-lever
of the series thereof being shown, in connection with the spacing-key.
Figure 4 is a vertical, central, longitudinal section of the machine, taken at right
angles to the section shown in figure 3, and illustrating two type-bars of the series
thereof, and their vibrations;
Figure 5 is a plan of the assembled type-bar series, detached, and shown in
connection with two key-levers and an auxiliary-lever, of the respective series
thereof;
Figure 6 is a plan, in detail, of a type-bar, its supporting bracket and the pivot by
which it has vibratory bearing on the bracket, in accordance with a feature of the
invention;
Figure 7 is a similar view of the same, shown partly in horizontal section ;
Figure 8 is a side elevation, enlarged, of a type-bar and its supporting bracket to

page_text: Figure 9 is an end view of the type-bar supporting bracket and type-bar pivot,
partly in section ;
Figure 10 is a front elevation of the paper-carriage and platen;
Figure 11 is an end elevation of the said carriage and platen, and showing in
section the ways upon which the carriage moves ;
Figure 12 is a vertical, central cross-section of the carriage and platen ;
Figure 13 is an end elevation, in normal position, of the devices for rotating the
platen;
Figure 14 is a similar view of the same, in position at the conclusion of a partial
rotation of the platen ;
Figure 15 is a longitudinal, vertical, central section of the machine, illustrating the
novel type-bar for printing more than one character or letter by a single type-bar of
the series thereof and also illustrating the novel vibratory platen in connection with
the series of said type-bars: the platen being shown in normal position, in the
machine, to receive an impression from one of the type carried by each type-bar, as,
for example, the small letters of the alphabet;
Figure 16 is a similar view of the same, showing the platen vibrated to a position
to receive an impression from the other of the type carried by each type-bar, as, for
example, the capital letters of the alphabet.
Figure 17 illustrates a modified form of the novel type-bar and the corresponding.
vibrations of the platen;
Figure 18 is an enlarged plan of one of the novel type-bars; and
Figure 19 is a side elevation of the same.
The devices for actuating the inking-ribbon are illustrated in figures 1, 3 and 4.
In type-writing machines of the class stated and which are commonly known as
"type-bar" machines and in which the type-bars are usually arranged radially in a
circular series and have a common printing-point at the centre of a series, the key-
levers which operate the type-bars are usually arranged in a series, in the machine, in
a plane below that of the type-bar circle and substantially parallel therewith and are
severally connected to the respective type-bars by links or rods. In such machines
the series of key-levers, therefore, occupies an area in the machine which is greater
than that of the type-bar circle and extends laterally, in the machine, so that some of
the key-levers lie beyond the circumference of the type-bar circle on opposite sides
thereof. The object of certain features of this invention is to reduce the distance
necessary in machines of the class stated between the type-bar circle and the series of
key-levers, and thus to lessen the height, or equivalent dimension, of the machine;
and furthermore, to permit the type-bar circle to be contracted in its circumference or
area, thus promoting compactness of structure.
A feature of this invention consists, primarily, in the combination, in a type-
writing machine having a circular series of radially arranged vibratory type-bars,
and a series of key-levers fulcrumed at one side, and preferably at the rear, of said
circular type-bar series, of an auxiliary-lever fulcramed outside of the circular type-
bar series, and intersecting, and at such intersection pivotally connected to certain of
the key-levers, together with a link or rod connecting said auxiliary-lover to certain
of the type-bars in that segment of the circular series thereof, which is adjacent to
the key-lever fulcrums.
At A is represented a series of type-bars arranged radially in a circle and
fulcrumed generally to supporting brackets as hereinaftor described. The type-bars
are all usually fulcrumed in the same plane and are adapted to strike or print at a
common printing-point, which is at the centre of the type-bar circle.
At B is represented a series of key-levers usually and preferably arranged in the
machine as shown, below, and in a plane parallel to, the plane of the type-bar circle,
so as to extend laterally, horizontally in the machine. The key-levers are pivoted or
fulcrumed in the machine at, or beyond, one of the sides of the type-bar circle, and
preferably to the rearward side thereof, and extend forwardly, below the said type-bar
circle, to the front of the machine, where they are severally provided with finger-

page_text: keys B, constituting the customary key-board. The key-levers may be fulcrumed on
any of the four sides of the type-bar circle, in the machine, without variation from
this feature of the invention..
In arranging these key-lovers, it is desirable to assemble the fulcrumed ends closely
together as shown in Figure 2. and to fulcrum them all on a single, or common, bar
carried by brackets B3 which are secured to and depend from a top-plate B', upon
which plate the various parts of the machine may be mounted as hereinafter set forth.
A shoulder is preferably provided on the end of each lever at its under edge, as
shown, adapted to seat to the under-face of the bar B2, and a spring, seated by one
end, in the said bar, may extend thence to and beneath each of the key-levers and be
furnished with a bifurcated end or projection 2 adapted to engage the under side of
its key-lever. The levers vibrate against the stress of the springs, respectively, in
operating the type-bars, and upon being released are returned to their normal positions
by the recoil of the springs, respectively.
From their closely assembled fulcrums, as described, the key-levers extend forwardly
in the machine desirably divergently, relatively to each other: By this means the
forward ends of the key-levers are given a separation, relatively to each other, at
their forward or key-ends to accommodate the attached finger-keys at the key-board,
as shown.
,,
Referring now to figures 2, 3, 4 and 5, illustrating plainly the lever-movement
feature of the invention, represents one of those of the key-levers B- which lie or
pass within the line of the circumference of the type-bar circle, and 6 represents one
of those of the key-levers B which lie or pass beyond the edge of such circle. In
carrying out the "lever-movement" feature of the invention, an auxiliary-lever C is
employed, fulcrumed or pivoted outside of the type-bar circle and, preferably, as
shown, to a bracket B6, which is desirably secured to and depends from the top-
plate B, so that the said auxiliary-lever will extend laterally in the machine and to
ard across and above a key-lever, to which it is pivotally connected at its intersection
therewith as by a link c. The auxiliary-lever C extends to a point in line directly below
a type-bar in that segment of the circular series of type-bars which is adjacent to the
common fulcrum-bar of the key-levers, and is there pivotally connected to a type-bár
by a link or rod D, as shown.
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In constructing a type-writing machine containing the novel "lever-movement," a
series of these auxiliary-levers C, is employed as shown in Figure 2, in two sections
or divisions, corresponding to the groups of the key-levers which lie beyond the type-
bar circle on opposite edges thereof. One of these sections or divisions of the series
of auxiliary-levers is fully shown in Figure 2 and it will be understood that the
opposite section, which is partly shown, is similar thereto in all respects. The said
auxiliary-levers, are preferably, severally controlled by retracting springs, as shown,
similar in form and application to said levers to the springs which control the key-
levers, as heretofore described. The auxiliary-levers C extend laterally in the machine
and, preferably, in substantially parallel lines across and immediately above those of
the key-levers, namely &, which lie beyond the type-bar circle and reach respectively
to type-bars in that segment of the circular series thereof which is adjacent to the
key-lever fulcrums; that is to say, to the segment of said series of type-bars which
is on the rear side of the machine. The auxiliary-levers C preferably terminate,
respectively, at points in line below their several type-bars in such segment, and they
are severally pivotally connected to key-levers at their intersection therewith, as by
short links c, and at their ends, which are opposite to their fulcrums, are connected to
their respective type-bars, in said rear segment of the type-bar series, by links D
which links are arranged, relatively to their respective auxiliary-levers, preferably at
a right angle thereto, as shown, and which links D are shorter than the links D¹
which connect the key-levers 3, severally, directly to type-bars in the front segment
of the type-bar series as shown. These links are preferably arranged at right
angles to their key-levers 6, as shown. I find this arrangement of the key-levers and
auxiliary-levers preferable for the reason, that, while the length of the key-levers b³,
respectively, from their fulcrums to the type-bars in the front segment of the circular
I..!

page_text: series thereof obviously adapts them to be connected directly to their type-bars by
links D which are rectangular to the key-levers, and to thereby impart an effective
..movement to such type-bars, by a direct pull, through said links, the distance between
the fulcrums of the key-levers, which lie beyond the type-bar circle, and points in
..line with type-bars in the rear segment of the series thereof, being comparatively
small, the auxiliary-levers can be effectively combined with such key-levers to
not only obtain a direct vertical pull on their type-bars by links D which are
rectangular to said auxiliary-levers, but also to multiply the lever-movement
between the finger-keys and the type-bars; and that said links D, by being made
shorter than the links D' compactness in the machine structure is promoted.
'
It is obvious that by means of this arrangement a machine may be constructed in
which the type-bar circle may be made of such diameter only as will accommodate
the fulcrums or journal-bearings of the type-bars, as hereinafter set forth, with the
..radial type-bars themselves of such a length only as will enable them to strike at
a common printing-point at the centre of the circle, and that the key-levers may
be arranged or located immediately below and close to the pendant ends of the
type-bars, when the latter are in a position of rest; and that, by an auxiliary-
lever C, pivotally connected to a key-lever lying beyond the circumference of
the contracted type-bar circle, and a short link D, arranged at right angles to
..said auxiliary-lever, as described, and connecting the same to a type-bar in the
rear segment of the circular series of type-bars, there may, by a depression of the
.key-lever at its finger-key, be obtained the sum of the vibrations of the said koy-
lever and auxiliary-lever in a direct vertical pull, through the link D, on the type-bar,
-50 that, while structural compactness in the machine is promoted, the actuating lever-
movement is communicated to the type-bar from a key-lever lying beyond the type-bar
circle, in the most effective manner.
:
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It is apparent that in a machine thus constructed a key-lever 63 passing under the
type-bar circle may be connected directly to a type-bar in the front segment of the
circular series of type-bars in line with it, above it, by a link D arranged at
right angles to the koy-lever, as shown in the drawings; and it is also evident that
an anxiliary-lever C may be so proportioned, and arranged to intersect and be
pivotally connected to. a key-lever b, lying beyond the type-bar circle, at such a
point, relatively to the fulcrums of each of said levers, that the sum of the length of
the auxiliary-lever from its fulcrum to its joint with its link D, uniting it to a type-
bar in the rear segment of the circular series of type-bars, and of the key-lever &
from its fulcrum to its joint with the said auxiliary-lever, will be substantially equal
to the length of the key-lever 63 from its fulcrum to its joint with its link D₁,
uniting it to a type-bar in the front segment of the circular series of type-bars;
whereby, the sum of the vibrations of the key-lever and its auxiliary-lever, by a
depression of said key-lever at its finger-key, will be substantially the same as
the total vibration of the key-lever by a substantially equal depression thereof at
its finger-key, so that an equal movement of the key of a key-lever lying under the
type-bar circle and of the key of a key-lever lying beyond such circle will effect an
equal extent of vibration of their respective type-bars in printing.
In arranging the auxiliary-levers C of each division of the series thereof, the
length of each auxiliary-lever is so proportioned and it is linked to a key-lever bat
such a distance from the fulcrum of its key-lever, that the sum of the total length
of each auxiliary-lever and the length of its key-lever from its fulerum to its joint
with the auxiliary-lever, shall be approximately the same in all the key-levers 6 and
..the auxiliary-levers of the combined series thereof; whereby, substantially the same
vibration or depression of all the key-levers, at their koy-ends, will effect a
substantially equal vibration of the auxiliary-levers at their joints with their
respective links D, and consequently a substantially equal movement of ail their
..respective type-bars in printing; and furthermore, it will be understood, that in
such.arranging the levers and C, the said levers are so proportioned, fulcerumed
and united. to each other, respectively, and to their links D, as recited, relatively to
the proportions and arrangement, respectively, of the key-levers 68 and their links D₁

page_text: as hereinbefore set forth, that a substantially similar movement or depression, at
their finger-keys, of any of the key-levers and 6', will effect a substantially
similar movement of the links D or D', as the case may be, and consequently a
substantially equal vibration of all the type-bars of the series thereof.
In promoting structural compactness in the machine, a base-plate or standard is
dispensed with, and a top-plate B', with the brackets B3 carrying the bar B, and the
fulcrum-brackets B³, secured to said top-plate, serve as the supporting frame upon
which the several working parts of the machine are mounted. The top-plate may
serve as a lid or cover to a case or box B, enclosing the lever-movement and type-
bars, as shown. The seating-ring of the assembled type-bars, hereinafter described,
may be secured in an opening in the top-plate, and the portion B' of said top-plate
on the forward side of the machine, may be perforated to accommodate the passage
and play of the finger-keys in the key-hoard, as shown.
A further feature of the invention, relating to the fulcrums of the vibratory type-
bars and the assembling of the type-bars and. the brackets to which they are
severally pivoted and to the adjustability of said brackets, individually, in the
assembled series of type-bars, consists, primarily, in the combination with a type-bar
support or bracket having thereon an aligning-face, and a type-bar having thereon
a face opposed and preferably parallel to and guided by said aligning-face, of a
conical or tapered pivot fixed rigidly to said support or bracket, by which the
typo-bar, having a corresponding conical or tapered bearing, is pivotally mounted
on the support or bracket; whereby, as the type-bar is vibrated on said pivot in the
direction to effect printing, the said face on the type-bar will be automatically forced
to contact with the aligning-face on the support or bracket, and the type-bar will thus
always vibrate on said bearing in one and the same plane when effecting printing;
and this feature of the invention further consists in the combination with a series of
radially arranged type-bars, of a corresponding series of radial supports or brackets,
each said support or bracket being provided with a conical or tapered pivot rigidly
fixe to, and by which the type-bars are severally given bearing on, the support or
bracket, individually, throughout the series, and each said support or bracket carrying
its single type-bar on said conical or tapered pivot, being individually adjustable
radially in the series; whereby, while wear on each or any of the type-bar pivotal-
bearings will be automatically compensated for by the described taper of the pivot,
so that the ty pe-bars will each always vibrate in one and the same plane when
vibrated on said bearings in the direction to effect printing, as hereinbefore stated,
such wear upon the conical or tapered pivots may be compensated for in the direction
longitudinally of a type-bar by said radial adjustment of the support or bracket to
which each said pivot is fixed, so that the type carried by each type-bar may be
made to always strike or print at one and the same point. And this feature of the
invention also includes a rigid annulus upon. which the described type-bar brackets
are seated at one edge, a flexible annular plate fitting to the opposite edge of said
brackets throughout the series thereof, and binding-screws passing through, and
adapted to bear upon said flexible plate, and extending between the opposed faces of
the adjacent brackets, throughout the series thereof and seated in said rigid annulus,
the sides of each two of said screws being in contact peripherally with the opposite
faces of the brackets between which they are located and thus supporting said brackets
perpendicularly on their seat on the annulus.
At E are shown the brackets to which the type-bars. A are severally, individually,
pivoted to vibrate thereon. Each bracket is provided with an aligning-face e, and
the type-bars. have each a face a thereon, the said faces, e. and. a, being preferably
planes, as shown, and desirably located. around: the pivotal-bearing, and with the
face a on the type-bar opposed: and: preferably parallel to the face e on the bracket as
:shown..
At e' is shown a conical or tapered pivot which is fixed rigidly upon each bracket E,
and is preferably constituted by a pintor stud seated fixedly in the bracket and having
a conical head with the taper thereof in the:direction toward the face e on the bracket.
The type-bar A has an aperture or bearing corresponding to the conical or tapered

page_text: pivot whereby it is mounted on said pivot. Variations in the form of general
outline of the tapered-hearing may be made without departing from this feature of
the invention, so long as the general direction of the taper of the pivot is towards the
said aligning-face e on the bracket.
Now, it is evident that, when a type-bar is vibrated in the direction to effect printing,
as, for example, by means of a heretofore described key-lever and link uniting it.
thereto, the described fixed tapered pivotal-bearing e will operate to automatically
force or crowd the type-bar face a to contact with the aligning-face e on the bracket,
so that the type-bar. in its vibration will be guided by the aligning-face e and will
hence always vibrate in one and the same plane.
The brackets E, each carrying a type-bar, are supported. edgewise, arranged
radially in a circular series, upon a rigid annulus E' which is adapted to receive and
seat the bottom edges of the brackets, as shown. E is an annular plate corresponding
to the rigid annulus E' and adapted to fit upon the entire circular series of the
seated brackets E, on the top-edges thereof, as shown. The annular plate E² is flexible
Hatwise, and is preferably constituted of a continuous circular piece of thin sheet
anetal. Between the opposed sides of the adjacent brackets throughout the entire
circular series thereof, are located binding screws which pass through and have
their heads bear upon the top-face of the plate E2 and into, and are seated at their
lower ends in threaded apertures or recesses in, the rigid annulus E'. These screws
are of such a diameter, or are, as is preferable, provided with sleeves e³, as shown, of
such a diameter, that said screws, or sleeves, as the case may be, are peripherally in
contact with the opposite faces of the brackets between which said screws are located,
throughout the circular series of the brackets.
The advantages of this described assembling and seating of the series of the type-
bar brackets are that, owing to the employment of the flexible annular plate E³ and
the described binding screws intermediate the brackets throughout the series, when
it is desired to adjust one of the brackets of the series, either radially or laterally on
its seat on the rigid annulus E!, this may be accomplished without disturbing any
other of the brackets of the series, by loosening the two screws which are on opposite
sides of the bracket, after. preferably tightening somewhat the two screws next
.beyond the said lossened screws on either side thereof in the series, when the tendency
of the tight screws will be to not only bind the annular plate E2 snugly to the
brackets on either side of the one desired to be adjusted and thus maintain such
brackets rigidly in position, but, at the same time, to somewhat flex the annular
plate E³ upward between said tight screws at the point where the loosened screws
are located and over the place occupied by the bracket which is desired to be
..adjusted, so that the loosened bracket may be readily moved on its seat either radially
or laterally; and furthermore, owing to the peripheral contact of the screws, or their
sleeves, as set forth, with the opposite faces of the adjacent brackets between which
the screws are located throughout the series, the brackets, when seated, are thereby
supported perpendicularly on their seat on the annulus E¹ and are prevented from
having lateral movement bodily on their seat on said annulus. It is evident that in
.-assembling the brackets E, carrying severally the respective type-bars, into the stated
circular series on the annulus E, the advantage of being able to adjust the brackets
individually, radially and laterally, without disturbing any other of the brackets of
the series, is very great from an economical as well as a mechanical point of view.
And it is evident that by means of the described seating of each bracket carrying a
type bar, while each type-bar will always vibrate on its fixed conical pivot in one
and the same plano, any wear upon the bearing on said pivot being automatically
compensated for by the taper of the pivot, as before described, so far as the forcing
of the face a on the type-bar to contact with the aligning-face on the bracket is
concerned, such wear on each tapered bearing may be compensated for, in the direction
longitudinally of the type-bar, by the radial adjustability of each bracket on its seat
between the rigid annulus and the annular-plate E², so that the type carried by each
type-bar, having vibration always in the same plane, as set forth, may be made to
always strike or print at one and the same point.

page_text: A projection eis arranged on that face of each bracket on which the type-bar is
pivoted, namely, the face e, said projection being located, relatively to the type-bar,
so that it will be met by and stop sail type-har as the type-bar vibrates reversely
after vibrating in a direction to effect printing. This projection et on each bracket
constitutes a "back-stop" for each type-bar, and it may be made in the same piece
as the bracket, in the form of a lug or ear turned angularly to the bracket, as shown
in figure 9.
The paper-carriage in its general structure, is similar to the usual carriage in type-
writing machines; that is to say, the carriage-frame F is composed of a rod f
extending longitudinally of the rear side of the carriage an fixed on a bar which
is adapted to slide in ways across the machine above the type-bar circle. A corre-
sponding rod constitutes the front of the frame and has a friction-roller f³ which
travels on the rail. End-yokes and fare pivotally mounted at one end ou
the rod and are united at their opposite ends by the rod.
The cylindrical
platen G is journalled in said yokes as shown. The rail bears the usual letter-
scale shown, with which is combined the customary pointer on the front of the
carriage-frame. A paper-guide may be provided on the carriage-frame in front of
the platen. The carriage is thus adapted to swing on the rod so as to expose the
printing-line on the platen to the operator in the usual manner.
The carriage may be given its longitudinal movement across the machine by the
usual pulling-cord attached at one end to the bar f' of the carriage and to the
opposite end to the well-known spring drum 10. The motion of the carriage may be
controlled, to effect the spacing, on the printing-line, between letters and words, by
the customary rack f" fixed and extending longitudinally on the carriage-frame, into
which rack the dogs F, F2 take, and which dogs are controlled by springs and are
actuated by what is commonly called the universal-lever F3 of the machine through
an arm thereof and a reciprocatory bar F. The vibration of the universal-lever 3,
by the engagement with its arm 13 of either a finger-key lever, or the spacing-key
lever, which is hereinafter described, will swing the arm of said universal-lever so
as to reciprocate the bar F and cause the dog F' as it engages a tooth on the rack "
and thus holds the carriage at rest, to, at the same time, rock the dog on its pivot,:
by engagement with the heel thereon so as to disengage the dog from the rack.
Upon the release of the universal-lever by the key-lever the arm f12 of said universal-
lever will be reversely vibrated and, as the retracting-spring 18 of the dog F
withdraws said dog from its engagement with the rack, the dog F will be consequently.
released and will be actuated by its spring to move on its slotted pivot-bearing so
as to engage a succeeding tooth on the rack ". The dog F may be provided with
an arm and a sliding bar 18 may be arranged as shown to engage said arm 17,
whereby the dog F may be oscillated to disengage it from the rack ", whereupon.
the carriage may be moved freely back and forth on its ways.
The bar is preferably constructed in two parts which are jointed together
endwise at by a screw-joint and one end of said bar is connected to the arm of
the universal-lever by journalling the former in the latter as shown at 20. By this
means the length of the bar F may be varied and adjusted to its connected devices to
take up any wear thereof or lost motion and so to give the requisite movement to the
dogs from the oscillation of the universal-lever.
The way H in or upon which the bar fl of the carriage-frame moves may be composed,
advantageously, of two parallel plates which are adapted to be mounted on the
machine frame adjustably relatively to each other, as, for example, by means of slotted
apertures in one or both said plates and screws h³ passing through said apertures and
into the machine-frame. In the upper faces of these parallel plates a longitudinal dove-
tail groove is formed, a portion of the groove being made in each plate, as shown, and
adapted to receive a corresponding longitudinal dovetail rib formed on the bar fl
as shown. The positions of the groove and rib may of course be reversed, in which
case a portion of the dovetail rib would be formed on each of the plates hh. By:
means of this described arrangement the rib may be fitted to its groove readily and
accurately and the desirable play of the rib in the groove be inore satisfactorily.
J

page_text: attained by the adjustment of the plates to each other than when the groove, or rib,
as the case may be, is formed wholly in or upon a single plate and thereafter fitted to
its corresponding part also in a single piece.
A
K is a plate which extends longitudinally of the platen G continuously from end to
end thereof and is formed with a plane portion & which is tangential to the circum-
ference of the platen, thus constituting a throat-like space between the plate and the
platen into which the paper to be placed on the platen may be introduced.
portion is curved flatwise to conform to the platen's periphery and extends under
The platen to the printing-line thereof. This plate K is pivotally hung upon the rod f
of the carriage-frame so as to swing thereon with the platen and to traverse the same
when the carriage moves across the machine, by lugs which are formed on the
plate K at the ends thereof by bending the metal plate angularly as shown, which
lugs are perforated to fit to the rod f.. Upon each end of the plate K are fixed
spring-arms 3, preferably in the form of leaf-springs, as shown, which springs are
adapted to reach under the platen to and be seated upon the front rod 2 of the
carriage-frame. The action of these spring-arms 3 is to hold the curved face
of the plate K to the platen-surface with a yielding pressure, so that while the
paper sheet to be printed upon will be held firmly to the platen without the aid
of a pressure-roller, the platen may be freely rotated to introduce the paper to
position thereon as to feed the paper, line by line, in printing. The spring-arms k³
being located at the extreme ends of the plate K and the plate being made of a
requisite length, said arms may be made to lie wholly beyond the ends of the
practical printing-line on the platen, so that the plate K will support the paper
on the platen without obstructing or obscuring the surface of the paper thereon.
Lis a pointer which is used to indicate the location on the platen of the common
printing-point thereon of the series of type-bars, in place of a second or supplemental
letter-space scale which is usually mounted on the platen. This pointer is hinged or
pivotally mounted on the rod of the carriage-frame by means of a sleeve / carrying
the pointer and through which sleeve the said rod fpasses loosely. The pointer is
curved to conform to the platen and reaches around under the platen and terminates
with its index-end just below the printing-line on the platen, as shown, immediately
beneath the pressure-plate K. A lug or pin on the bar of the carriage-frame
engages a peripheral slot in the sleevel. The pointer is by this arrangement free
to swing with the platen on the rod when the platen is lifted to expose the printing-
line to the operator, but is prevented from longitudinal movement on the rod f with
the carriage.
The devices employed to rotate the platen effect the line-spacing, are as follows:-
M is a lever pivotally mounted on the rod of the carriage-frame at one end of the
platen, and extending forwardly on the carriage across the journal of the platen. This
lover is provided with a spring m fixed on the end yoke of the carriage-frame and
adapted to press the lever upward to its limit of movement on its said pivot. The
lever has on its under side the depending lug m¹ which is provided with the segmental
guide-slot m² adapted to engage the axis or journal of the platen as shown. Upon the
lever M is pivoted a pawl m³ which is adapted in location and direction to engage a
ratchet m fixed on the platen-end, and to rotate the platen through the distance of
one of the teeth of said ratchet when said lever is vibrated downward against the
stress of its spring to the limit of its movement in such direction; and to ride the
succeeding tooth of the ratchet and assume a position in line above it, when the lever M
is retracted upward to its limit of movement by its said spring. The pawl m³ is
formed or provided with a weighted heel m beyond its pivot on the lever, so that
when the lever is thrown upward the said heel will, by gravity, swing the pawl to its
stated position relatively to the ratchet. A downward pressure, therefore, on the free
end of the lever M, which end is, as stated, on the forward side of the carriage, where
it may be conveniently manipulated, will operate to rotate the platen the distance of a
predetermined space between the lines of printing.
N, N are the spacing-key-levers which are preferably fulcrumed on the common
fulcrum-bar B² of the key-levers B, and which engage the arm f13 of the universal-

page_text: lever F, so that, when said spacing-key levers, one or both, are depressed, the universal-
lever will be vibrated to effect the longitudinal feed or movement of the paper-carriage,
as herein before described. The said spacing-key levers are preferably provided, at
their forward ends, with the vertical extensions n and n', respectively, which extensions
are desirably pivotally connected to the levers, as shown. N is the spacing-key,
which I prefer to locate in the machine immediately in front of the paper-carriage, at
the rear side of the key-board, as shown, and the extensions n, n' serve to connect the
spacing-key, in this location, to the spacing-key levers N, N¹. The location of the
sacing-key may, however, be varied in the machine.
The spacing-key N° consists of a wooden or metal plate, as shown, and of a length
adapted to reach from one to the other of the levers N, NI, as shown. The spacing-
key N is pivotally jointed or hinged at or near each end to the levers N and N' and
preferably to the upper ends of the vertical extensions n, n' of said levers, as shown.
I find it desirable, when said vertical extensions n, n³ are employed, to constitute these
pivotal joints or hinges by means of a socket-piece n² adapted to fit detachably to the
upper end of the vertical extension and a plate n³ which is secured to the under face
of the spacing-key, as by screws n', said plate being mortised or slotted at to receive
the solid head of the socket-piece n² and a pivot-pin 7 being passed transversely
through the plate and socket-head, as shown. By means of this construction the
plates n having the socket-pieces n² pivoted to them may be readily secured in proper
positions on the key N and the socket-pieces n³ may then be conveniently seated on
the extremities of the vertical extensions 'n n¹.
By means of this spacing-key N2 pivotally jointed at each end to the supporting-
levers N, N, the carriage may be moved, to effect spacing on the line of printing, by
depressing the key in the middle or at either end, and when the key is depressed at
one end the lever at such end of the key will act to vibrate the universal-lever F³,
while the other lever remains idle and the joint of the spacing-key thereto acts as a
pivot on which the key oscillates. The operator may thus actuate the spacing-key
with either hand as may be most convenient at the instant, when spacing is desired to
be effected while printing with the machine, and may effect the spacing with the
exertion of only such force on the spacing-key as is necessary to depress but one of
the spacing-key levers in engagement with the universal-lever.
In constructing and arranging the finger-keys, it is desirable to make the stem ³ of
each cylindrical, as shown, and to unite said stem to the stems of the several key-
levers, which are likewise preferably cylindrical, by a tubular socket in one of said
stems, into which socket the other and cylindrical stem is seated endwise. The socket
is preferably formed in the key-stem, as shown in one of the key-levers in Figure 4,
extending from the lower end longitudinally of said stem; and said socket is pre-
ferably formed of a somewhat less diameter than the diameter of the lever-stem 6 and
has a slot the wall of said socket, longitudinally, as shown at 67, whereby the socket-
wall may be spread a little in seating the lever-stem in the socket, so that when
thus seated the lever-stem will be closely hugged by the socket-wall. The socket may,
however, he formed in the lever-stem 6, and the key-stem & fitted therein, as shown
in another of the key-levers in Figure 4. Upon the cylindrical stem which is seated
in the tubular socket a radial projection 68 is formed adapted to pass into and project
more or less through the slot in the socket-wall. The finger-key is by the means
described, detachably jointed to the key-lever, and at the same time is prevented from
turning in its socket-seat when once seated.
At Sand S' are shown the inking-ribbon spools carrying the usual inking-ribbon R,
said spools having respectively the shafts, s', having bearings in the machine frame
as shown. These shafts are arranged horizontally on the machine and are provided
with the ratchet-wheels 2, 3, respectively. T and T are bell-crank levers fulcrumed
respectively at and with an arm of each pivotally connected, preferably by a
pin t common to both said arms, to the bar which is reciprocated by the arm/1
of the universal-lever. Each said bell-crank lever has a pawl-like arm & arranged and
located in the machine at a right angle to the plane of its respective ratchet on the
spool-shafts, and reaching to and adapted to engage the periphery of said ratchet
B

page_text: flatwise of said pawl-arm, as shown. W is a bar carrying or provided with projections w
having respectively oppositely inclined faces w¹, said projections being located on said
bar relatively to said pawl-arms t, so that when one of said projections engages one of
said pawl-arms by its inclined face, the other projection is free from engagement with
the other pawl-arm, as shown. The bar W has longitudinal movement on suitable
guides, so that either projection may be engaged to the corresponding pawl-arm.
The pawl-arms are flexible or adapted to have play flatwise at their fulcrums, whereby
when the bar W is moved to bring either one of its projections into engagement with
the corresponding pawl-arm, said pawl-arm will be thereby lifted out of engagement
with its ratchet, the other pawl-arm being by the same movement of the bar released
from the other projection and hence free to engage its ratchet. The reciprocation of
the bar F operates to oscillate both the levers T and T continuously, and the respec-
tive pawl-arms of said levers, by engagement with the ratchets 2, 3, alternately,
respectively, thereby operate to rotate the ribbon spools in either direction as desired, at
cach vibration of the universal-lever during the operation of printing.
The form and arrangement given to the levers T, T, and their pawl-arms and the
location of the latter, as described, relatively to the inking-spool ratchet, namely, at
right angles flatwise to the planes of the respective ratchets, enables the mechanism
which actuates the inking-spools to be given compactness of structure and to occupy
but a very limited space in the organization of the machine.
A further feature of the invention consists, primarily, in the combination of a
vibratory type-bar having two or more printing-types, with a platen adapted to be
struck by said types, successively, on the same printing-line, in positions corresponding
to the number of said printing-types, which positions of the platen are in a line with
each other at a right angle to the plane of the printing-face of a type when in the act
of striking the platen; and this feature of the invention comprises further, a vibratory
type-bar provided with two or more printing-types the planes of the printing-faces of
which are at an angle to each other whereby said types may strike successively on the
same printing-line on a platen which is adapted to assume positions, corresponding in
number to the number of said printing-types, in a line with each other at a right
angle to the plane of the printing-face of a type when in the act of striking the platen;
and this feature of the invention also includes the combination of a series of vibratory
type-bars adapted to strike at a common printing-point and each having two or more
printing-types with a platen adapted to vibrate in the direction substantially at a right
angle to the plane, or planes, in which the type-bars are fulerumed.
In the machine illustrated in Figures 15 to 19 of the drawings, the type-bars are
shown at A each carrying two printing-types and arranged radially in a series and
fulcrumed in a common plane, and adapted to strike or print at a common printing-
point which is at the centre of said series. The form and arrangement of the series
of type-bars may be varied from that illustrated and any known and equivalent
device may be substituted in place of the vibratory type-bar to actuate the printing-
types to strike or print at a point common to the type-series, without material variation
from this feature of the invention.
The platen B is adapted to vibrate in the direction substantially at a right angle
to the plane or planes in which are the fulcrums of the series of type-bars, so that it
will assume two or more positions which will be in a line with each other at a right
angle to the plane of the printing-face of a type when such type is in the act
of striking and is in contact with the platen or the paper thereon to be printed
upon.
The vibration of the platen in the direction stated may be effected by causing the
carriage C and its ways c to move vertically to the plane of the type-bar fulcrums,
or up and down on the machine over the type-bar series; and these movements of
the carriage and its ways and the supported platen may be effected by means of
reciprocatory bars d*, working in ways ex, and engaging the under side of the carriage-
ways ex at each end thereof, said bars being engaged by key-lever arms fx which are
operated through a connecting fulcrum gx, by a key hx, which key may be located in
the key-board of the machine. It should be understood, however, that I in no way

page_text: limit myself to the use of the reciprocatory-bars d*, arranged as described, as a means
for giving to the platen the stated vibrations.
more
When a type-har Ax is vibrated to strike the platen and a type carried by it
is in the act of striking the platen, as illustrated in Figures 15 and 16, the
described vibration of the platen will cause the platen to assume two or
positions which will be in a line with each other at a right angle to the plane of
the printing-face of the type which is striking the platen and is in contact with the
platen or the paper thereon to be printed upon. The platen is thus adapted to be
struck successively, on the same printing-line by the two or more types carried by
each type-bar, in positions which correspond in number to the number of types on the
type-bar, and which positions are, as stated, in a line with each other at a right
angle to the plane of the printing-face of a type when in the act of striking said platen
In constructing the improved type-bir carrying two or more types, the planes of
the printing-faces of the several types are arranged at an angle to each other, as shown
in Figures 15. 16, 18 and 19, where a type-bar having two printing-types is illustrated,
or in Figure 17 where a type-bar having three printing-types, is shown. The planes
of the printing-faces of said types on each type-bar are arranged at such an angle to
each other, successively, that when the platen is vibrated, as described, to assume
positions corresponding in number to the number of types on the type-bar, which
positions are in a line with each other at a right angle to the plane of the printing-
face of one of the types on the bar when in the act of striking the platen, the
printing-faces of the other types on the type-bar will be adapted to respectively
strike the platen, on the same printing-line, when the platen is in its other described
positions.
This is plainly illustrated in Figures 15 and 16, the type-bar being shown in
Figure 15 striking the platen on the print.ng-line thereon, with the type which is
nearest the type-har fulcrum, the platen being in one position, and then striking the
platen in Figure 16 on the same printing-line with the type or types beyond said first
type on the type-bar, the platen being vibrated into the other position which is in a
line at a right angle to the plane of the printing-face of a type whe such type is in
the act of striking the platen; the type-bar is vibrated on its fulcrum to successively
bring the printing-faces of the respective types to contact with the platen, as shown in
the said Figures 15 and 16.
It is evident that a type-bar may be thus constituted, which, in combination
with a platen having vibration in the direction specified, is adapted to print several
characters or letters upon said platen on the same printing-line thereon.
It is preferable to construct the type-bar, with two types, and to place upon one of
the inclined faces, preferably the extreme end face, an upper case or capital letter, and
upon the other of said in-lined faces, preferably the one nearest the type-bar fulcrum,
a lower-case or small letter, of the same alphabetical character.
By this arrangement when the platen is in normal posi ion as in Figure 15, a small
letter may be printed on the platen by the type-bar, and when it is desired to print a
capital letter, the platen may be vibrated to the position shown in Figure 16 in a line
with its position, when struck by the small letter type, at a right angle to the plane of
the printing-face of said small letter-type when in the act of striking, and a capital
letter may then be printed on the platen by the other type on the type-bar, on the same
printing-line as shown in said Figure 16.
The described type-bars being arranged radially in a circular series, as heretofore
described, and all adapted to strike at a common printing-point which is at the centre
of the series, and with the platen, as herein before set forth, adapted to vibrate in the
direction substantially at a right angle to the plane or planes in which the type-bars
are fulcrumed, the types carried by each type-bar throughout the series are located
relatively to each other radially on their respective type-bars; that is to say, the
types on each of all the type-bars of the series, which in vibrating to strike the platen
have their longitudinal axis at other than a right angle to the longitudinal axis of the
platen, are located on their respective type-bars with the centres of their printing-
faces in a line parallel to the planes through which their respective type-bars vibrate.

page_text: This is illustrated in the type-bar shown in Figure 18. It is apparent that, the types
which throughout the series of type-bars are located on their respective type-bars
nearest the type-bar fulcrums, and which, for example, bear the lower-case or small
letters of the alphabet, will be adapted to all strike upon the platen when in its normal
position, at a common printing-point; and that the types which throughout the series
of type-bars are located, as described, on their respective type-bars at the extremities
thereof and which, for example, bear the upper-case or capital letters of the alphabet,
will be adapted to all strike at the common printing-point and on the same printing-
line upon the platen, when the platen is vibrated in the direction substantially at right
angles to the plane of the type-bar fulcrums, to a position, as heretofore described,
which is in a line with its first or normal position at a right angle to the plane of the
printing-face of a type when in the act of striking the platen.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the samo is to be performed, I declare that what I
claim,
is : :-
1. In a type-writing machine having a circular series of radially arranged vibratory
type-bars, and a series of key-levers fulcrumed at one side of the type-bar circle, the
combination therewith of an auxiliary-lever fulcrumed outside the type-bar circle
and intersecting and at such intersection pivotally connected to certain of the series of
key-levers, and a link or rod connecting said auxiliary-lever to certain of the series
of type-bars in the segment of the circular series thereof adjacent to the key-lever
fulcrums, substantially as and for the purpose set forth.
2. in a type-writing machine having a circular series of radially arranged vibratory
type-bars and a series of key-levers fulcrumed in the machine at the rear side of
the type-bar circle, the combination therewith of an auxiliary-lever fulcrum d
outside the type-bar circle and intersecting and at such intersection pivotally con-
nected to certain of the series of key-levers, and a link or rod connecting said
auxiliary-lever to certain of the series of type-bars in the rear segment of the circular
series thereof in the machine, substantially as and for the purpose set forth.
3. In a type-writing machine having a circular series of radially arranged type-bars
and a series of key-levers fulcrumed at one side of said type-bar circle, the combina-
tion therewith of an auxiliary lever fulcrumed outside said type-bar circle and
intersecting and at such intersection pivotally connected to certain of the series of
key-levers, and a link or rod rectangular to said auxiliary-lever and connecting said
lever to certain of the series of type-bars in the segment of the circular series
thereof adjacent to the type-bar fulcrums, substantially as and for the purpose
set forth.
4. In a type-writing machine having a circular series of radially arranged type-bars
and a series of key-levers fulcrumed at one side of said type-bar circle, the combination
therewith of a link or rod connecting certain of the series of key-levers to certain
of the circular series of type-bars in the segment of said series opposite to the type-
bar fulcrums and an auxiliary-lever fulcrumed outside the type-bar circle and
intersecting and at such intersection pivotally connected to certain of the series of
key-levers, together with a link or rod connecting said auxiliary-lever to certain of
the series of type-bars in the segment of the circular series thereof adjacent to the
type-bar fulcrums, substantially as and for the purpose set forth.
5. In a type-writing machine having a circular series of radially arranged vibratory
type-bars, and a series of key-levers fulcrumed at one side of the type-bar circle, the
combination therewith of a series of auxiliary-levers fulcrumed outside the type
bar circle and intersecting and at such intersection severally pivotally connected
to key-levers of the series thereof, and links or rods severally connecting the
auxiliary-levers respectively to type-bars in the segment of the circular series
thereof adjacent to the key-lever fulcrums, substantially as and for the purpose
set forth.
6. In a type-writing machine having a circular series of radially arranged vibratory
type-bars fulcrumed in a plane, or planes horizontal in, or parallel to the base of

page_text: the machine, and a series of key-levers fulcrumed at one side of said type-bar circle
and extending below the same in a plane substantially parallel to the plane or planes
of the type-bar fu'erunis, the combination therewith of a series of auxiliary-levers
fulcrumed outside the type-bir circle and extending between and in a plane substant ally
parallel to the planes of the type-bar cirrie and key-levers, and intersecting and at
such intersection pivotally ea tesverally to certain of the key-levers, and links
or rods severally connecting said anxiliary-levers to certain of the type-bars in the
segment of the circular series thereof adjacent to the key-lever fulcrums, substantially
as and for the purpose set forth.
7. In a type-writing machine having a circular series of radially arranged vibratory
type-bars and a series of key-levers fulcramed at one sile of the type-bar circle, the
combination therewith of a series of auxiliary-levers fulcrumed outside said type-bar
circle and extting in parallel lines across and at their intersection therewith
pivotally connected, respectively, to key-levers of the series thereof, and links or rods
Severally connecting said auxiliary-levers to type-bars in the segment of the circular
series thereof adjacent to said key-lever fulcrums, substantially as and for the purpose
set forth.
8. In a type-writing machine having a circular series of radially arranged vibratory
type-bars and a series of key-levers fulcrumed at one side of the type-bar circle, the
combination therewith of links or rods connecting certain key-levers of the series
thereof to certain type-bars of the said series thereof, and auxiliary-levers fulcrumed
outside said type-bar circle and intersecting and at such intersection severally
pivotally connected to certain other key-levers of the series thereof, together with links
or rods severally connecting said auxiliary-levers to certain other of the type-bars
of the circular series thereof, substantially as and for the purpose set forth.
9. In a type-writing machine having a circular series of radially arranged type-bars
and a series of key-levers fulcrumed on a common bar at one side of said type-bar
circle, the combination therewith of a series of auxiliary-levers fulerumed on a
common bar outside the type-bar circle and extending across and at their intersection
therewith pivotally connected, respectively, to key-levers of the series thereof, and
links or rods severally connecting said auxiliary-levers to type-bars in the segment
of the circular series thereof adjacent to the common fulcrum bar of the key-levers,
substantially as and for the purpose set forth.
10. In a type-writing machine having a circular series of radially arranged type-
bars and a series of key-levers fulcrumed in the machine on a common bar at the rear
of said type-bar circle and extending divergently forward in the machine below said
type-bar circle, the combination therewith of a series of auxiliary-levers fulcrumed on
a common bar outside said type-bar circle and extending across key-levers of the
series thereof intermediate said key-lever series and said type-bar circle, and links or
rods severally connecting said auxiliary-levers to type-bars in the segment of the
circular series thereof adjacent to the common fulcrum-bar of the key-levers, together
with a universal-lever located adjacent to the said fulcrum-bar of the ker-levers and
having an arm adapted to engage all said key-levers at a point near their fulcrums,
substantially as and for the purpose set forth.
11. In a type-writing machine having a circular series of radially arranged type-
bars and a series of key-levers fulcrumed at one side of said type-bar circle, the
combination therewith of a series of auxiliary-levers fulcrumed out-ide said type-bar
circle, and severally intersecting and at such intersections pivotally connected to
certain of the key-levers of the series thereof, together with links or rods severally
connecting said auxiliary-levers to type-bars in the segment of the circular series
thereof adjacent to said key-lever fulcrums, said certain key-levers ani the auxiliary-
levers pivotally connected thereto being proportioned, fulcrumed and connected
severally and respectively, so that the sums of the lengths of each said certain key-
levers from their respective fulcrums to their joints with their respective auxiliary-
levers, and of the several auxiliary-levers from their respective fulcrums to their
joints with their respective links or rods connecting them severally to their type-bars,

page_text: are substantially equal throughout the series of said levers, substantially as and for
the purpose set forth.
12. In a type-writing machine having a circular series of radially arranged type-
bars and a series of key-levers fulcrumed at one side of said type-bar circle, the
combination therewith of links or rods severally connecting certain of said key-levers
directly to certain of said type-bars, and a series of auxiliary-levers fulcrumed
outside said type-bar circle and intersecting and at such intersection severally
pivotally connected to certain other of said key-levers, together with links or rods
severally connecting said auxiliary-levers to certain other of the type-bars, said
certain key-levers connected directly to certain of the type-bars and said certain other
key-levers and the auxiliary-levers to which they are severally pivotally connected
and which auxiliary-levers are severally connected to certain other of the type-bars,
being proportioned, fulcrumed and severally connected as described, so that the sums
of the respective vibrations of the auxiliary-levers and those of the key-levers
connected thereto will be equal, relatively to the type-bars. to the respective vibrations
of those of the key-levers connected directly to type-bars, substantially as and for the
purpose set forth.
13. In a type-writing machine, the combination with a series of vibratory type-
bars, of a series of key-levers for actuating said type-bars, each of said key-levers
having a shoulder on the under side of its fulcrum-end, a bar B2 common to all the
key-levers and to which they are fulcrumed by their said shoulders, and a series of
springs having each an angularly bent heel and an angularly bent bifurcated
opposite end, by which they are severally seated in said bar and severally engage said
key-levers, substantially as and for the purpose set forth.
14. In a type-writing machine, the combination with a top-plate B, of brackets B³
pendant from said plate, a bar 132 carried by said brackets, and a series of key-levers B
fulcrume on said bar, substantially as and for the purpose set forth.
15. In a type-writing machine, the combination with a top-plate B1, of brackets B³
pendant from said plate, a bar 132 carried by said brackets, and brackets B5 pendant
from said plate, together with a series of key-levers B fulcrumed on said bar 132 and a
series of auxiliary-lovers fulcrumed on said brackets B³, said auxiliary-levers
being, severally, pivotally connected to key-levers of the series thereof, substantially
as and for the purpose set forth.
16. In a type-writing machine, the combination with the ink-ribbon spools S S',
their respective shafts ss, and ratchet-wheels s2, 3, on said shafts, respectively, of
bell-crank levers T T', an arm f2 of each of which is pivotally jointed to a recipro-
cating-rod B and an arm f4 of each of which is located at right angles to the plane
of and engages, respectively, the spool-ratchets, and a bar W having longitudinal
movement and provided with projections we adapted to, severally, alternately, engage
an arm of said bell-crank levers, substantially as and for the purpose set forth.
17. In a type-writing machine, the combination with a type-bar support or bracket
provided with an aligning-face, and a type-bar having a face which is opposed to and
guided by said aligning-face on said support, of a conical or tapered pivotal bearing
fixed rigidly to said support, by which said type-bar is mounted to vibrate on said
support or bracket, substantially as and for the purpose set forth.
18. In a type-writing machine, a vibratory type-bar having a conical or tapered
bearing in combination with a conical or tapered pivot fixed rigidly to a support, and
an aligning-face on said support around said pivot parallel and opposed to AL
corresponding face on the type-bar, substantially as and for the purpose set forth.
19 In a type-writing machine, the combination with a series of radially arranged
type-bars, of a corresponding series of radial supports or brackets, each said support
or bracket being provided with a conical or tapered bearing fixed rigidly therein, by
which the type-bars are severally pivotally mounted on said supports or brackets, and
said supports or brackets being adapted to be adjustable radially, individually, in the
said series, substantially as and for the purpose set forth.
(
20. In a type-writing machine, the combination of a circular series of radially

page_text: arranged type-bar brackets, a corresponding series of radially arranged type-bars
severally pivoted to the respective brackets on the sides thereof, a rigid annulus upon
which il brackets are seated at one edge, a flexible annular plate fitting to the
opposite edge of said brackets throughout the series thereof, and screws pas-ing
through, and adapted to bear upon said flexible plate, and extending between the
opposed faces of the adjacent brackets throughout the series thereof, and seated in
said rigid annulus, the sides of each two of said screws being in contact peripherally
with the opposite faces of the brackets between which they are located and sup-
porting them perpendicularly on their seat, substantially as and for the purpose set
forth.
21. In a type-writing machine, the combination of a circular series of radially
arranged type-bars severally pivoted to the respective brackets on the sides thereof, a
rigid annulus upon which said brackets are seated at one edge, a flexible annular
plate fitting to the opposite edge of the orackets throughout the series thereof, screws
passing through and adapted to bear upon said flexible plate and extending between
the opposed faces of the adjacent brackets throughout the series thereof and seated
in said rigid annulus, and sleeves on each said screws the sides of each two of
which sleeves being in contact peripherally with the opposite faces of the brackets
between which they are located and thereby supporting said brackets perpendicularly
on their seat, substantially as and for the purpose set forth.
22. In a
type-writing machine, the combination with a type-bar and a type-bar
support or bracket on which the type-bar has pivotal bearing, of a projection on the
face of the support or bracket on which the type-bar is hung and located in the path
of the movement of said type-bar when it vibrates reversely on its bearing after
vibrating in the direction to effect printing, substantially as set forth.
23. In a type-writing machine, the combination of a rack on the paper-carriage,
spring-controlled dogs F1, F2, to engage and operate said rack, and the universal-
lever F, to actuate said dogs, with a reciprocatory-bar F composed of two parts
united endwise by a screw-joint /10, one of which parts is journalled at 20 in the
arm of said universal-lever, and the other of which parts engages said dogs, sub-
stantially as and for the purpose set forth.
24. In a paper-carriage for type-writing machines, the combination of the rotary
cylindrical platen G with a pressure-plate K extending longitudinally and continuously
on the platen and having the plane portion & and curved portion k', said plate being
provided with the angular perforated end-lugs bent froin said plate and pivotally
engaging the hinge-bar of the platen, and with the spring-arms projecting from
the front edge of said plate at the ends thereof and reaching forwardly of the
carriage-frame to and seated upon the front rod thereof, substantially as and for the
purpose set forth.
25. In a paper-carriage for type-writing machines, the combination with the
cylindrical platen G journalled in the carriage-frame, hinged to the rod of a
correspondingly curved pointer L reaching to the printing-line on the platen and
carried by a sleeve mounted loosely on the hinge-rod fand provided with a peripheral
slot together with a fixed pin adapted to engage said peripheral slot, and prevent
the movement of said sleeve longitudinally of said hinge-rod, substantially as and for
the purpose set forth.
26. In a paper-carriage for type-writing machines, the combination with the
cylindrical platen G journaled in the hinged yokes f³, f, and a correspondingly
curved pressure-plate K hinged at its ends by lugs k to the hinge rod of the platen
and extending longitudinally and continuously on the platen and provided at its ends
with the spring-arins 3 adapted to reach forwardly of the carriage-frame to and be
seated on the front rod thereof, of a curved pointer L carried by a peripherally
slotted sleeve mounted loosely on the hinge-rod of the platen and on the rear or
under side of said pressure-plate and a fixed pin to engage said slot, said pointer
being adapted to reach below and around said pressure-plate to the front edge thereof
on the platen, substantially as and for the purpose set forth.
27. In a paper-carriage for type-writing machines, the combination with the

page_text: journalled platen provided at one end with the ratchet m of the spring-controlled
lever M fulcrumed on the rod of the carriage-frame and extending to the front of the
carriage, and provided with lug m³ having the guide-slot m² to engage the axle of the
platen, together with the pawl m³ pivoted on said lever and adapted to engage the
ratchet on the platen when the lever is vibrated downward, and the weighted heel m² on
said pawl, whereby the pawl is swung to position above the ratchet when the lever is
vibrated upward, substantially as and for the purpose set forth.
28. In a type-writing machine, a spacing key pivotally jointed at each end thereof
to its supporting spacing levers, substantially as and for the purpose set forth.
29. In a type-writing machine, the combination with the spacing-key and its
supporting-levers, of vertical extensions on said supporting-levers respectively, and
pivotal joints uniting said spacing-key at each end thereof to said vertical extensions,
substantially as and for the purpose set forth.
30. In a type-writing machine, the combination with the spacing-key and its
supporting-levers, of vertical extensions on said supporting-levers respectively and
pivotally connected thereto, and pivotal joints uniting said spacing-key at each end
thereof to said vertical extensions, substantially as and for the purpose set forth.
31. In a type-writing machine, the combination with the spacing-key and its
supporting levers, of plates secured to the spacing-key at each end thereof, vertical
extensions on said supporting-levers and socket-pieces fitted on the said vertical
extensions, said socket-pieces being pivotally jointed to said plates, respectively,
substantially as and for the purpose set forth.
32. In a type-writing machine, the combination with the spacing-key and its
supporting-levers, of slotted plates secured to the under face of the spacing-key,
vertical extensions on said supporting-levers and socket-pieces detachably fitted on said
vertical extensions with their heads located in the slots in said plates on the key,
together with pivot-pins passing through said plates and socket-heads respectively,
substantially as and for the purpose set forth.
33. In a type-writing machine, the combination with a finger-key composed of an
index-letter bearing-disk and a stem thereon, of a stem on the key-lever, said stems
being united endwise by a cylindrical end on one stem seated in a cylindrical
longitudinal socket in the other stem, said socket-wall being longitudinally slotted,
and said stem having a radial projection from the cylindrical part thereof, fitting in
said slot in the socket-wall, substantially as and for the purpose set forth.
34. In a type-writing machine, the combination of a finger-key composed of an
index-letter bearing disk provided with a stein baving the longitudinal tubular socket
and a slot in said socket-wall, with a cylindrical key-lever stem adapted to fit to
said socket and having a radial projection & extending from the cylindrical part
thereof, adapted to be seated in said slot, substantially as and for the purpose set forth.
35. In a type-writing machine, the combination of a vibratory type-bar having two
or more printing-types, with a platen adapted to be struck by said types, successively,
on the same printing-line, in positions corresponding in number to the number of said
types, which positions of the said platen are in a line with each other at a right angle
to the plane of the printing-face of a type when in the act of striking the platen,
substantially as set forth.
36. In a type-writing machine, a platen adapted to vibrate to positions which are
in a line with each other at a right angle to the plane o the printing-face of a type
in the machine when the type is in the act of striking the platen, substantially as set
forth.
37. In a type-writing machine, the combination of a series of vibratory type-bars
each having two or more printing-types and adapted to print at a common printing-
point, with a platen adapted to vibrate in the direction substantially at a right angle
to the plane or planes, in which the type-bars are fulcrumed, substantially as set forth.
38. In a type-writing machine, a vibratory type-bar having two or more printing-
types, the planes of the printing-faces of which are at an angle to each other,
substantially as set forth.
39. In a type-writing machine, the combination of a platen with a vibratory type-

page_text: bar having two or more printing-types, the planes of the printing-faces of which are
at an angle to one another, said type-bar being adapted, when vibrated, to strike said
platen with its longitudinal axis at other than a right angle to the longitudinal axis of
the platen, and said types being located on said type-bar with the centres of their
printing-faces in line radially on the type-bar parallel to the plane through which the
type-bar vibrates, substantially as set forth.
40. In a type-writing machine, the combination of a series of vibratory type-bars
each having two or more printing-types, the planes of the printing-faces of which on
their respective type-bars are at an angle to each other, and the centre of the printing-
faces of which are in line radially on their respective type-bars parallel to tho planes
through which the type-bars vibrate, respectively, throughout the series with a platen
adapted to vibrate in the direction substantially at a right angle to the plane or planes,
in which the type-bars are fulcrumed, substantially as set forth.
Dated this 94th Jun 1900
ALLISON BROS.,
Agents for the Applicant.