Improvements in the Construction of Type-writing Machines.
Year: 1899

page_text: Date of Application, 16th May, 1899
سية
D
1000
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Type-writing Machines.
1, PETER JENSEN, of 77, Chancery Lane, in the County of Middlesex, Chartered
Patent Agent, do hereby declare the nature of this invention, which has been com-
municated to me from abroad by Antonia Hanson and Ole Halversen Lee, both
of Number 462, Fourth Avenue, in the City of Milwaukee, County of Milwaukee
and State of Wisconsin, United States of America, Manufacturers, to be as
follows:-
-
This invention has for its principal object the construction of a type-writing
machine, embodying a vertically disposed horizontally rotatable platen, together
with suitable type-bars and their actuating mechanism, and mechanism. for
rotating said platen, and for elevating the said platen to predetermined heights
as desired, and to these ends the said invention consists primarily, in the combina-
tion of such a platen, and type-bars and their actuating mechanism with other
mechanism for rotating the said platen, this last named mechanism being
actuated by the actuation of the said type-bar actuating mechanism; secondly,
in a pair of oppositely revolving pulleys and belt-gearing for rotating the said
platen, and for moving the said platen longitudinally; thirdly, in a pivotally
supported lever, having two pairs of upward projecting tongues or forks constitu-
ting a ribbon-holding device, and in the combination of the various parts thereof
with the frame, platen, and operating mechanism; fourthly; in the combination
with the said vertically disposed horizontally rotatable platen, and the type-bars
and operating keys therefor, of means for raising the platen, means for regulating
the ascent thereof, means for checking the said ascent, and means for lowering
said platen, all at the will of the operator; fifthly; in the combination with the
said described platen, of a series of open annular paper clamps; carried by and
rotating with the platen and having frictional contact therewith; sixthly; in
constructing said paper clamps in the form of open spring bands, and providing
them with a series of rollers bearing against said platen; seventhly; in arranging
a vertical feed roller in a line parallel to that of said platen, and near the
openings in the said annular paper clamps; eighthly; in a rectangular upright
frame having a vertically movable slide for supporting the said vertically disposed
horizontally rotatable platen and adjacent parts and connections; ninthly; in the
combination with the said platen, and the type-keys, key-levers, type-bars and
other operating mechanism, of a shift-key and shift-key levers, properly sup-
ported and connected together, and means for shifting the type-bars independently
of the shift-key, as well as means for locking the shift-levers in their shifted
position, and for releasing them from such position and restoring the parts to
normal condition; tenthly in the combination with a horizontally disposed key-
board and a vertically disposed platen, and series of type-keys, key-levers, shift-
key and shift-key levers, of a pair of bell-crank shift-levers, an arc-shaped
rod connecting the upper ends of the long arms of said shift-levers, and a series
of type-bars pivotally arranged on said rod and linked to said key-levers, the free

page_text: ends of said type-bars each bearing two printing characters, slanting in opposite
direction from the center of said ends, whereby, when any one of said type-bars
makes impact against the platen, the character struck will always stand exactly
vertical and give a direct horizontal impression, whether the said type-bar is in
its normal or shifted condition; eleventhly; in the combination with the said
key-board and platen, of a platen-supporting slide, having side-bars one of which
is provided with a vertical series of teeth or notches, a line-spacing mechanism
having dogs in adjustable engagement with said toothed' or notched side-bar, and
means for automatically elevating the platen and supporting slide on the with-
drawal of one of said dogs from its contact with said side-bar; twelfthly; in the
combination with the horizontally disposed key-board and vertically disposed
platen and type-bars arranged to present the type vertically to the platen, of a
key and connecting mechanism for raising said platen at the termination of
each line, so as to continuously and successively revolve the platen in one
direction only, from start to finish of the sheet being written upon, by the
successive depressions of the different keys only; thirteenthly; in the combina-
tion with said horizontally disposed key-board and vertically disposed platen, of a
margin regulating key for automatically raising said platen and beginning each
new line at a stated distance from the edge of the sheet being written upon, and
adjustable means for predetermining the said distance as required, said platen
being continuously revolved in one direction only, without lateral change of
position of said platen; fourteenthly, in the combination with a key-board having
type-keys and levers, and a series of type-bars and a platen raising key and con-
necting mechanism. of a vertically disposed platen, supported on a vertically
movable frame, and movably mounted on a vertical shaft, and another vertical
shaft carrying two horizontally disposed shell-pulleys, each containing a volute-
spring arranged to revolve said pulleys in opposite directions, one of said shell-
pulleys being geared to the lower end of the first named vertical shaft so as to
automatically revolve said platen with each depression of a type-key, .and the
other shell-pulley being connected by cord and pulleys to the said platen-support-
ing frame so as to automatically raise said platen with each depression of the
platen-raising key: and finally, in the details of construction and combination of
all of the herein before recited parts.
Improvements in the Construction of Type-writing Machines.
I, PETER JENSEN, of 77, Chancery Lane, in the County of Middlesex, Chartered
Patent Agent, do hereby declare the nature of this invention, which has been com-
municated to me from abroad by Antonia Hanson and Ole Halversen Lee, both
of Number 462, Fourth Avenue, in the City of Milwaukee, County of Milwaukee
and State of Wisconsin, United States of America, Manufacturers, and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:-
This invention has for its principal object the construction of a type-writing
machine, embodying a vertically-disposed horizontally rotatable platen, together
with suitable type-bars and their actuating mechanism, and mechanism for rotat-
ing said platen, and for elevating the said platen to predetermined heights as
desired, and to these ends the said invention consists in certain peculiarities of

page_text: construction and combination of parts as will be hereinafter more particularly
set forth with reference to the accompanying drawings, and subsequently claimed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a vertical central longitudinal section through a machine embodying
the said invention, taken on the plane indicated by the line 1-1 of Figure 2.
Figure 2 is a horizontal sectional view on the planes indicated by the line 2-2
of Figure 1 with the type-bars, shift-lever lock, and key-lever springs and con-
necting parts omitted.
'f
Figure 3 is a vertical sectional view on the plane indicated by the line 3-3 of
Figure 1.
Figure 4 is a detail view of the line-spacing mechanism shown in elevation.
Figure 5 is a sectional view on the line 5-5 of Figure 3, drawn to an enlarged
scale.
1
Figures 6 and 7 are detail views of the line-spacing mechanism.
Figures 8, 9 and 10 are detail views of the letter-spacing mechanism.
Figure 11 is a partly diagrammatic and partly detail perspective view of the
platen-operating mechanism.
Figure 12 is a detail view of the shift-lever lock.
Referring to the drawings, A represents the lower part of the frame of the
machine, which belongs to that class of type-writing machines which employ
key-boards, type-bars connected to the key-levers, and ink-ribbons in front of the
platen for the type-bars' to strike against and B represents the upper front portion
of the machine-frame which frame not only serves as the base or support of the
machine, but also as a casing for the key-levers and their operating mechanism.
In the machine illustrated in the present drawings I have shown only nineteen
type-keys CCC, arranged in three banks, and each type-bar is constructed to
have two characters thereon, whereby thirty-eight characters are provided for;
but it will be understood that any required number of type-bars may be employed,
and the form of machine best adapted for ordinary office use is provided with
thirty-eight keys arranged in four banks, thereby providing for seventy-six
characters; but I have illustrated, as stated, a machine provided with only one-
half of the usual number of type-keys to avoid useless duplication of parts in
the drawings.
1) represents the spacer-bar; E, the shift-key; F, the platen-raising key,
and G a key called for the sake of brevity the " margin-key," the construction,
arrangement. and function of these various keys and their attachments being
hereinafter fully explained.
HI represent the vertical standards of the cylinder or platen J, around which
platen the sheet of paper to be type-written on is wrapped, as hereinafter
described. K is a yoke-shaped cross-piece connecting the said standards H I at
some little distance below their tops, the feet or bases of said standards being
secured in any preferred manner, as by screws a a, to the base of the frame A.
Each standard H I is formed with a vertical T-shaped groove (marked h and i,
respectively) to receive the correspondingly-shaped side bars Hand I' of the
platen-supporting slide, said side bars being united near their base by a cross-
bar J and at their top by another cross-bar K. In line with the ends of the
yoke-shaped cross-piece K are two rearward-extending arms L M, projecting
from the standards H I, respectively, and terminating in vertical bearings for
the vertical shafts NO of the ribbon-spools N¹ 0¹.
AA are lugs projecting inwardly from the rear end of the lower part A
of the frame and are transversely bored to form bearings for a transverse shaft B',
to the extreme ends of which shaft are rigidly secured the enlarged rear ends c¹ di
of the levers CD, whose forward ends rise abruptly, as shown at a¹, Figure 1,
and are united by a cross-bar 6. To each end of the described spacer-bar D are
secured the upwardly-bent forward ends of levers E' F¹, whose rear ends are
enlarged into hubs elf, which are journaled on the transverse shaft G¹, which

page_text: is itself journaled in the side pieces of the frame A. These levers E¹ FI are
each formed with a rounded bend at about the centers thereof, as shown at g',
Figure 1, which bent portions straddle and rest on the herein before-named
front end cross-bar 6 of the levers CD, and each lever E and F is connected
by a spiral retracting-spring to the key-board proper, i, while the other
levers are retracted by means of flat springs, whose free forward ends
rest on the base of the frame A, all as shown in Figure 1 with respect to the
levers CE the springs of the other levers F (not shown in said figure) being
identical in construction and arrangement.
L' represents the ribbon whose ends are wound around the spools N¹ O, and M¹
is what I term the ribbon-holder," whose construction and, arrangement are
shown in detail in Figures 1, 3 and 5 and are as follows: The yoke-shaped cross-
piece K has at its center two upward lugs bb, perforated to form bearings for the
pivot c, passed therethrough, and on this pivot e, between the said lugs bb there
is mounted a sleeve d, which forms the center of a hell-crank lever ef, and from the
upper arme of the said bell-crank lever there projects the said ribbon-holder M',
the same having two pairs of tongues or forks, between which the ribbon L¹ is
held, as clearly shown in the three figures of the drawings just named, said ribbon
also passing around vertical antifriction-sleeves gg, which revolve on studs or
pins, projecting up from the top of the said cross-piece K, at about the ends
of the straight central portion thereof, as best shown in Figure 5, from which
points the said ribbon goes directly to the said ribbon-spools N O¹. The ribbon-
holder M is kept normally away from contact with the platen J (or the sheet of
paper thereon) and retracted (after it has been carried back to such contact
by a type-bar, as hereinafter explained) by means of a spring K, secured to the
front end of the lower arm f of the described bell-crank lever and to a pin m,
projecting from the front center of the described cross-piece K.
P represents an arc-shaped rod, whose ends are held in the upper ends of the
long arms QQ of the bell-crank shift-levers QqQg, on which rod P and between
said arms QQ all of the type-bars are pivotally arranged, as hereinafter
described. These bell-crank levers Q7 are pivoted, one on each side, to the side
pieces of the upper part B of the frame or casing on the inner sides thereof.
as shown by the lugs or bearings nn and pivot-bolts oo, as shown in Figure 2,
the inner heads 1 of said pivot-bolts being shown in said figure
and one of them being also shown in Figure 1, in which last-named view only the
left-hand shift-lever or that nearest the shift-key E is shown, and the shift-lever
on this said left-hand side is provided with a retracting-spring 1", secured
to the arm of the lever and to a pin q projecting from the inner surface of the
left-hand side piece of the said upper frame or casing B, while the movement
of both of the shift-levers Qg is limited by stops or pins p p projecting inwardly
from the said side pieces of the frame or casing B, as most clearly shown with
reference to the stops on one side in Figure 1. said stops being duplicated on
the other side of the said frame or casing.
Qis a post projecting obliquely forward from near the upper end of the arm Q
of each shift-lever Q, and to the tops of said oblique posts there is secured a
transverse bar R, having right-angled ends extending toward the rear of the
machine. This bar may be brazed screwed or otherwise secured in position on
the upper ends of the said post Q', this being immaterial so long as the parts
are rigidly united together, and, if desired, the said ends may be formed
integrally with the levers Qq and posts Q and the bar R be simply a straight
transverse rod.
SS represent two levers operated by the shift-key E. The lever S, at its
forward end, is connected directly to the lower end of the shank of said shift-
key E and farther back is bent into a downward rounded curve, as shown at k¹
(so as to pass under the described cross-bar 6 of the levers C¹ D',) and thence
straight on backward to the described transverse shaft G1, to which its enlarged
rear end is rigidly secured near one end of said shaft, all as shown in Figures 1

page_text: and 2, the said rear end being in the form of a sleeve or hub m, through which a
pin ¹ is driven into the said shaft G¹. R¹ is a link pivotally connecting the
extreme forward end of the short arm q of the bell-crank shift-lever Qg to this
said shift-key lever S, just beyond the described curve or bend kin said lever,
by the pivots, this said shift-key lever S¹ being on the left-hand side of the
machine in the construction illustrated in the present drawings, because the
shift-key E is shown as being on that side. On the opposite side of the machine
is the lever S, which, as shown in Figure 2, only extends as far forward as the
end of the short arm 7 of the lever on that side, to which short arm the
said forward end of the lever S is pivotally connected by another link R¹ and
pivots, the rear end of this fever S terminating, like the just-described
lever S, in a hub or sleeve m², slipped on the transverse shaft G₁, adjacent to
its other end, and secured in place thereon by a like pin n'.
TTT represent the key-levers, connected at their forward ends to the lower
ends of the shanks of the type-keys CCC and at their rear ends terminating in
sleeves or hubs ttt, which are slipped on the described transverse shaft G between
the sleeves or hubs m' m' of the shift-key levers SS. One of these key-levers T is
shown in detail in Figure 1, where the front straight part bears said reference-
letter T, there being a curved upwardly and rearwardly extending intermediate
parts and a straight oblique downward rear part 1, terminating in the described
sleeve or hub t. The straight forward part of each key-lever T rests on the
described front cross-bar of the levers CD!.
UUU represent the type-bars, and one of the same is also fully illustrated in
Figure 1. Each type-bar is, near its lower end, slightly enlarged and there
provided with a transverse opening (whereby the said type-bars are strung upon
the hereinbefore-named arc-shaped rod P,) and beyond this the said type-bar
terminates in an obliquely-disposed foot u, which latter is pivotally connected,
by a link T, to its key-lever T, the upper pivot being shown at u, at the end
of the foot, and the lower pivot being shown at e, at the apex of the upward-
extending portionss and t¹ of the key-lever T. The upper free end of the type-
bar U is bent rearwardly and upwardly and fitted with a plate U¹, bearing two
characters, one above the other, the faces of the said characters slanting in
opposite directions, as shown in Figure 1. These type-bars U U are all strung on
the rod P, and the object in having the said rod arc-shaped is so that each type-bar
will strike at exactly the same place, namely, through the front center of the
ribbon-holder M, between the front fork or front pair of tongues thereof, as
indicated by the broken or dotted lines in Figure 3.
V is a transverse rod extending across the front portion of the machine from
side to side of the upper frame or casing B just back of the front portion of said
frame or casing, and V1 represents a spiral retracting-spring whose upper end
is secured to said ród V and whose lower end is secured to a loop or eye on the
key-lever T beneath, there being one of these springs to each key-lever, so that
the said lever may be instantly retracted to its normal position after it has
been depressed. One of these springs, with the rod V in section, is shown in
Figure 1; but this showing is omitted in Figure 2, together with the series of
type-bars UU, to avoid confusion in the drawing, which simply shows at this
place the key-levers T T and portions of connected mechanism.
The preferred arrangement of characters on the plates of the type-bars U is
that common to type-writing machines which employ a shaft-namely, the upper
character is the capital letter and the lower character is the corresponding
lower-case letter, with the usual arrangement of figures and punctuation-
marks et cetera, and I lay no claim to that arrangement; but, so far as I know,
making the faces of the upper and lower characters on each plate slant in opposite
directions is new with me, the object being to have each character at its impact
with the ribbon (when the latter is against the paper on the platen) stand exactly
vertical and give a direct horizontal impression, whether the type-bar is
in its normal position, so that the lower character will strike, or

page_text: shifted; so that the upper characters will strike. It is sometimes desirable
to continuously use the upper characters exclusively for an extended length of
time, as in making headings of letters or circulars, and the like, and to facilitate
this I employ the shift-lever lock. (Shown best in the detail view, Figure 12.)
The locking-cam of this device is also shown in Figure 1; but in Figure 2 I have
omitted any showing of this device, which would otherwise confuse the view of
the shift-lever Qg on the left-hand side of the machine.
W represents the locking-cam of the shift-lever lock, which cam is cast
rigidly with a sleeve or collar c, these parts being located on the inner side of the
left-hand side piece of the upper frame or casing B, so that the said cam is in ver-
tical line with the short arm q of the shift-lever Q 7 on that side, said part W w
being made rigid, as by pin, with the inner projecting end of a shaft X, which
is journaled in said side piece of the frame B, while W represents a finger,
having a sleeve or collar wo rigid therewith, mounted on the outer projecting
end of said shaft X and there secured, as by pin al, all as best shown in the said
detail view Figure 12, the cam W and finger W of the device projecting at prac-
tically right angles to each other, so that by pulling on the finger Wand
drawing it forward from a practically horizontal position the said locking-cam W
will bear down on the short arm g of the shift-lever Q 7 on that side, shifting
said lever against the force of its spring 1", and thereby not only accomplish
the shift without the need of touching the shift-key E, but also lock the lever in
the shifted position (shown in dotted lines in Figure 1) while a downward push
against the said finger W1 will serve to instantly free the point of the cam W
from contact with the arm q, thereby allowing the said spring 1" to retract the
shift-lever to its normal position (shown in full lines in Figure 1) and restoring
the parts to their normal condition.
.
The platen J consists of a hollow cylinder of india-rubber mounted upon a
hollow cylinder X, of either wood or metal, but preferably of the former for
lightness. Y is a circular base-piece formed with a vertical central tube Y',
extending upwardly to a height greater than that of the said cylinder X¹ and
platen J, said tube being externally round in cross-section and having a bore
which is square in cross-section, said tube further extending below the base-
piece a short distance, as shown at y, while from the upper surface of said base-
piece there projects an annular flange y, which may be formed with exterior.
screw-threads to take into or engage with the lower end of the cylinder X¹.
Z is an annular plate or flat ring surrounding the annular flange y', and resting
on the outer circumferential portion of the base-piece Y, said ring Z having a
circumferential shoulder formed by an upward vertical annular flange terminat-
ing in an outward horizontal flange, as shown at, leaving thereby an annular
space all around between the base-piece Y and flange z for the reception of
another flat ring 7, from whose periphery there projects horizontally a pin 2,
for a purpose hereinafter described.
A is a cap, which is the counterpart of the base-piece Y, applied in a reverse
position, except that in place of a central tube it has à central hole for the tube Y¹
to pass through, said 'cap having a downward-depending annular flange 2,
corresponding to the flange lettered y¹ of the base Y, which flange on the cap is
preferably exteriorly screw-threaded to take into or engage with the upper end
of the cylinder X, and between the top of said cylinder and the under surface of
the outer circumferential portion of the cap there is located an annular plate or
flat ring B, which is the counterpart of the described lower ring Z, only applied
in a reversed position, the upper ring B2 having a circumferential shoulder formed
by a downward vertical flange, terminating in an outward horizontal flange, as
shown at 62; thus leaving an annular space all around between the said flange ba,
and cap A for the reception of another flat ring C2, which latter corresponds
to the described lower flat ring 7. and the two last-named flat rings are united by
a vertical rod and in the preferred construction before both of the said flat
rings are united to the ends of the rod there are slipped upon the latter the open

page_text: annular paper clamps Da D³. The preferred form of these clamps is best shown
in Figure 5, wherein is illustrated one of said clamps formed of a flat metallic
spring-band open at one point, said band being enlarged and vertically perforated,
as shown at 2, to receive the rod 2, (although of course, a separate loop could be
secured to the band D2 for this purpose, if desired,) and at suitable intervals the
said band is similarly enlarged and is vertically perforated and transversely
slotted for the reception of rollers e² e² of any suitable number, (five being enough
for effective service.) which rollers bear against the sheet of paper E2, (shown by a
solid black line in Figure 5) which is wrapped around the platen J to be type-
written upon and hold the paper in place by frictional contact, one end of
the band De being bent inward so as to also bear against the paper. The rod c²
is stationary; but adjacent thereto there is another rod g², whose ends are journaled
in the described flat rings CZ and which rod is covered with a tight-fitting rubber
cylinder 2, which also bears against the paper E2, the band D³ being curved
around the cylinder 2, but free from contact therewith, as shown at beyond
which point the adjacent end of the said band is bent to project outwardly, as
shown at 2.
In Figure 1, I show how the platen J and its cylinder X are secured in place
between the base-piece Y and cap A, with the intermediate flat rings thereby
securely clamped in position, it being preferable that there should be a collar
near the upper end of the tube Y, against which collar the under surface of the
cap A abuts, the upper end of said tube passing through a central opening in
the upper cross-bar K₁ of the platen supporting slide H I while the described
lower end y of said tube Y¹ is scated in a central opening in the lower cross-bar J¹
of said slide. The upper end of the tube Y is preferably formed with screw-
threads on its outer surface for the ready attachment thereto (after the parts
have been put together as shown and described) of a hand-wheel F2 for the
more convenient manipulation of the platen, as hereinafter described.
G is an obliquely-disposed horizontal arm projecting inwardly from the left-
hand standard H toward the platen J and provided at its inner end with a down-
wardly-projecting pin m² for engagement at the proper time with the horizontally-
extending pin on the periphery of the lower flat ring 7 of the platen when
the paper is to be fed on said platen, as hereinafter set forth.
He represents the platen-raising lever, connected at its front end to the platen-
raising key F and terminating at its rear end in an enlarged hub n2, whereby it is
mounted on the transverse shaft B₁ at the rear end of the machinė, next to
the hub or enlarged rear end of the lever 11, there being an upward-curved
bend near its rear end to enable said lever H2 to pass over and operate free
from contact with the shaft K2 of the ribbon-reversing mechanism, hereinafter
described. I is a flat spring secured at its front end to said lever H2 and with its
free rear end resting on the upper surface of the base of the frame A of the
machine. J2 represents the margin-key lever, connected at its front end to the
margin-key G and extending backward substantially in horizontal line with and
just beyond or on a line inside of the said lever H2. The lever J2 terminates
at its rear end in an enlarged hub p, whereby it is mounted on the aforesaid rear
transverse shaft B', between the hub n² of lever H2 and the adjacent lug A', and is.
furthermore, formed with an upward-curved bend q near its end, like lever H2
(there being also a like upward-curved bend in lever D' at this
enable all these levers to
point) to
pass over and escape contact
with the aforesaid shaft K2. L2 is a flat spring (similar to the just described
spring 2) secured at its front end to said lever J2 and with its free rear end
resting on the upper surface of the base A, exactly like said spring I2. The
lever J2 is further provided with a lug s2, projecting from the upper surface and
transversely bored to form a bearing for a rod M2, hereinafter described. the
adjacent projecting end of said rod resting on top of the platen-raising lever H³.
Referring now especially to Figures 3, 4, 5, 6, and 7, I will next describe certain
details of the line-spacing mechanism. The side bar I¹ of the vertical platen-
'

page_text: supporting slide, which moves in the slot i of standard I, is provided on its outer
transverse edge with a series of notches formed by teeth 122, projecting beyond
the edge of said standard I. №2 02 represent the arms of an L-shaped lever, the
arm of which is perforated and journaled on a pivot-bolt 2 which is screwed
into a lug on the rear of the standard I, this arm 02 terminating in a reduced
end 2, which normally rests on the upper end of an adjusting-screw, which
projects vertically through the screw-threaded bore lug y on said standard I. At
about the angle of the two arms 02 N2 of this lever there is a perforated lug 2
from which a spring P2 extends to a pin or lug a³ on the standard I. The arm N
of this lever is provided with a pin or stop b³. These two arms N2 02 are laterally
or horizontally disposed. Q2 R2 represent, respectively, the upright and lateral
arms of another L-shaped lever pivotally secured at about the junction of the
said two arms thereof to the arm N of the first-named lever, the pivot in question
being the properly shouldered shank of a finger S2, the said lever Q R having
a heel, which comes normally against the herein before-named pin or stop 63,
while to the outer end of the lateral arm R2 of said lever there is connected the
upper end of a link T2, whose lower end is pivotally connected to the herein-
before-named platen-raising lever H2, as shown at in Figure 4.
U2 repre-
sents the head of a cam. having a suitable lever-handle f³, said cam being pivotally
secured to the said lever Q2 R by means of the properly-shouldered shank of a
pivot-bolt g. The lever arm Q2 has a lug h³ projecting therefrom, to which is
secured the upper end of a curved flat spring V2, whose free lower end bears
against the head of the cam U2. The upper end of the lever-arm Q² terminates
on one side in an inwardly bent stationary dog, which in the position of the
parts shown in the drawings is understood as being in engagement with one of the
notches or teeth 2 on the side bar I of the platen-supporting slide. W2 is a
sliding plate having a vertical slot therein, through which slot there pass the
shanks of headed screws m³ m³ into the lever-arm Q2, so that said plate has free
vertical movement between the heads of said screws, and the outer face of said
lever-arm, the said slide W2 resting, when it drops by its own gravity, on the
head of the cam U2 and the upper end of said slide terminating in another
inwardly-bent dog of like shape with the described dog and disposed at the
right-hand side thereof, so that when the lever Q2 R2 is pulled to the left by
the link T2 and lever H2, as hereinafter explained, the dog will be laterally
freed from engagement with a notch or tooth 2 of the slide side bar I and the
dog he brought into engagement with the same notch or tooth.
Referring now particularly to the detail views Figures 8, 9 and 10 and also
to Figures 2 and 3, I will next describe certain details of the letter-spacing
mechanism. X2 is a cross-piece which connects the two standards H I at some
little distance above their lower ends, and the mechanism about to be described
is mainly situated adjacent to the left hand standard below this cross-piece, the
said cross-piece being provided with a central vertically-perforated hub to
form a bearing for the hereinafter-described vertical shaft, which serves to
revolve the platen. Y is a vertical plate projecting inwardly from the standard H
just beneath the cross-piece X2, to which it may be cast or secured, as shown
best in the detail view Figure 9. 72 is a horizontal plate or table projecting
from the rear of the standard H at a plane below the bottom of the plate Y² and
extending inward at a right angle, said table having a downward-depending
vertical flange or web o along its inner edge and an arm 7 projecting horizontally
from its outer edge and thence extending vertically and terminating in a
perforated bearing for a push-rod A3, which latter is provided with a notch w
therein to engage with a latch secured by pivot 6 to said arm p³ as herein-
after described.
'13 represents a stop-arm the lower end of which is rigidly fastened to a
shaft, journaled in the lower inner corner of the described plate Y2, to the other
end of which shaft, beyond said plate, there is rigidly secured a fork C³,
which straddles a pin D projecting from a sliding plate E³, which has longitu-

page_text: dinal movement on the table 72 by reason of.a slot in said plate and the shanks
of headed screws t³ ³, passed entirely through said slot into said table Z².
13 represents a segment having a hub cast rigidly on one side thereof, said
segment being pivoted to the flange 3 of the table Z2 by a pivot 3. The upper
end of this segment is formed with a fork 3, which straddles the described pin D³
just back of the fork C³, and the lower rounded edge of said segment is provided
with two notches or indentations for engagement at the proper time, as
hereinafter explained, with a dog near the free outer end of a flat spring G³,
whose inner end is secured to a lug a, projecting from the standard H. Further.
the said segment 13 is provided with two shouldered pins b for engagement
with the loops de respectively of the links H³ ³, as hereinafter explained.
J3 is an 'angle-block whose lower horizontal part rests on the inner end of
the described sliding plate 3, to which it is pivotally secured by screw-bolt f
while the upper vertical part has a rearward-projecting lug g, to which is secured
one end of a retracting-spring K³, whose other end is secured to a lug 4, projecting
rearwardly and upwardly from the slide 3. The outer end of this lug his
transversely perforated to admit the passage therethrough the herein before-
named push-rod A Just back of the angle-block J there is a vertical lug or
stop on the upper surface of the slide 13, at the inner rear corner thereof.
L3 is a lever which is pivotally secured to the vertical upper arm of the angle.
block by pivot-bolt said lever terminating at its forward end in a stationary
dog bent at a right angle to the length of said lever and of about half the
width thereof. The other end m of said lever is adapted to be engaged by the
inner end of the described push-rod_A³.
M3 is a sliding plate having a longitudinal slot therein, whereby it is
secured to said lever L by the shanks of headed screws oo, passing therethrough
into the lever, and said plate terminates at its forward end in a like bent dog p' of.
the same width and projection as that of the described stationary dog on the
lever L. The said lever is further formed with a downward extension g'.
from which there projects a lug, and to this lug there is secured the lower end
of a flat spring s+, whose upper free end bears against the rear end of the said
sliding plate M³
N³ is a headed pin projecting from the lever L3, and from said pin the link H³
is suspended by means of a ring or eye at the upper end u of said link above
and at a right angle to the loop in said link H³.
Referring especially to Figures 1, 2 and 3 and incidentally to Figures 9 and 10.
03 represents a horizontally-disposed wheel having a notched or toothed-
periphery for engagement with the just-described dogs kp on the lever L
and its sliding-plate M. The wheel 0 is mounted near the lower end of a vertical
shaft and rigidly secured to said shaft, which latter has a cylindrical lower end
passing through the central vertical bore n³ in the hereinbefore-named cross-
piece X, there being a collar 4 rigidly secured to said shaft just above the said
cross-piece X2, on which the collar rests, and above this collar the said vertical
shaft is square in cross-section, so as to fit within the square bore in the
vertical central tube Y₁ of the platen J. The wheel 03 has a hub w on its under
side, and below this there is a pulley Q3, rigidly secured to the extreme lower
end of said shaft P. In the drawings the pulley Q3 is represented as having
à concave or V-shaped groove in its periphery for the reception of a triangular
belt R3, passing around a like groove in the periphery of another and larger
pulley S at the rear of the pulley Q³, as hereinafter described; but it is
obvious that, if desired, the said two pulleys may be belted together in any other
way, as by a sprocket-chain engaging with sprockets on their peripheries
they may be connected by a train of gear-wheels instead of by the friction-belt
shown.
ог
Tis a wheel horizontally mounted on the shaft P3, the hub of said
wheel coming just below the cross-piece X2 and the rim y' of said wheel being
of greater thickness than that of the web of the wheel and square in cross-section,

page_text: as shown in Figures 1 and 9 so as to best provide for the attachment to said rim
of the margin-regulator Us, consisting of upper and lower plates with opposed
recesses in their rear ends to embrace the said wheel-rim y' and a clamping
screw to draw these two plates together and secure them tightly to the rim at
any required point on said wheel-rin, according to the width of margin desired
to be maintained on the left-hand side of the sheet type-written upon, this being
accomplished by the stoppage of said margin-regulator by the stop-arm B³ at
the proper time, as hereinafter explained.
V represents a lever whose rear end terminates in an enlarged hub a', loosely
mounted on the hereinbefore named transverse shaft 13 at the extreme rear
end of the machine and whose front end is rigidly connected to the adjacent end
of the rod M2 whose other end is journaled in the margin-key lever J. This
lever Vis formed with an upward-curved bend 65 (best shown in Figure 3) to
enable it to pass over and escape contact with the herein before-named shaft K²
and said lever is supported near its forward end by the link from pin c* on
segment 3, as shown in Figures 3 and 9.
W3 represents a lever whose rear end terminates in an enlarged hub mounted
on the transverse shaft B' next to the hub a of lever V; but unlike that 'this
hub is rigidly secured to said transverse shaft, so that lever Wwill move with
the levers whenever a type-key C (or the spacer-bar D) is depressed. The
said lever W³ is formed with an upward-curved bend (best shown in Figure 1)
to enable it to pass over the shaft K like the lever V3, and the forward end of
this lever W3 is supported by the link H³ from pin N₁ on the lever L³ as best
shown in Figure 9.
X represents a left-hand standard and Y³ a right-hand standard, at the rear
end of the machine, said standards being connected at their tops by a transverse
cross-bar, said standards having outwardly-projecting feet, secured to the
upper surface of the bottom of the base A of the machine, as by screws or
rivets gg. A short distance above its foot e the standard X3 has a horizontal
outward-projecting arm provided with a vertical bore therethrough, forming a
bearing for the vertical shaft N of the ribbon-spool N', already described, and
similarly, the standard is provided a corrreponding short distance above its
foot f with a horizontal outward-projecting arm provided with a vertical bore
therethrough, forming a bearing for the vertical shaft of the other. ribbon-
spool 0: The described transverse shaft K2 passes through holes or bearings in
said standards x Y3 about midway between the said feet and outward-projecting
arms, which latter form a casing or housing for the outer vertical miter-
wheels on the shaft K² and for the horizontal miter-wheels no on the lower
projecting ends of the vertical shafts N O. The transverse shaft K2 is provided
with a head m to facilitate moving said shaft in or out to enable its vertical miter-
wheels to engage with one or the other of the adjacent horizontal miter-wheels,
as hereinafter described. "The said shafts NO are kept at their proper elevation
by means of collars pg, secured to them and resting upon the rearward-extend-
ing arms L M.
A represents another cross-bar connecting the just-described rear stan-
dards XY in line with and below the cross-bar 7 about midway of the height
of said standards. The upper cross-bar is provided with a central vertically-
perforated hub and the lower cross bar A is similarly provided with a central
vertically-perforated hubs both forming hearings for a vertical shaft B. C* is
a hand-wheel on the projecting top end of this shaft B, just below which there
is a ratchet-wheel D, which latter rigidly secured to said shaft just above the
cross-bar 7.
E is a horizontally-disposed escapement which is pivoted, as shown at t
to the cross-bar and held in engagement, with the teeth of the ratchet-wheel D*
by a spring F, secured to said cross-har, the lever of said escapement being
marked 5.
G is a horizontally-arranged hollow or shell pulley within which is contained

page_text: a volute spring H, properly secured at its ends within the shell of the pulley
and covered with a top or casing y as shown in Figure 1, said top or casing being
removed or broken away in Figure 2 to show the said spring H. The periphery
of this pulley G is grooved to hold the cord I as it is wound thereon, one end
of said cord being secured to the said pulley, as shown at e, Figure 1, and said
cord I thence passing obliquely to and under a pulley J, secured to a stud w on
the forward obliquely-projecting end of a V-shaped lug K, extending from the
Jeft-hand standard H. From this pulley J the said cord I extends vertically
upward to, over, and around a pulley L, mounted on an inward-projecting stud
on a curved lug M, projecting from the top of the standard H above the yoke-
shaped cross-piece K, while the pulley Jis located on a horizontal line just
above that of the shell-pulley G. The cord 1 after passing up over the upper
pulley L from the rear side thereof continues down on the front side of said
pulley to a lug N on the left-hand end of the lower cross-bar J of the platen-
supporting slide and is there secured, as best shown in Figure 3.
Just below the described shell-pulley G the vertical shaft 13 is provided with
another ratchet-wheel 04, whose hub abuts against the under side of the depend-
ing hub of said shell-pulley G and is fastened to the said vertical shaft. From
the under side of the just-named shell-pulley there depends a lug or arm a, which
is rigidly connected to said pulley, and to the lower end of this arm there is
secured by pivot-bolt a dog or pawl 14, whose free end engages with the teeth
of the ratchet-wheel (* A vertical pin e rises from the upper surface of said
dog or pawl P, and a flat spring projects from the said arm a and bears
against said pin to keep it against said ratchet-wheel 0+. The said shaft B*
is further provided with a collar e rigidly secured thereto and resting on the hub s
of the cross-bar A4, and just below said cross-bar is located the hereinbefore named
horizontally-arranged pulley 83. This is also a hollow or shell pulley with a top
casing f, and it contains another volute spring Q' secured therein, so as to
operate in exactly the reverse direction from the spring H in the shell-pulley G
above. I have already described the peripheral groove in this shell-pulley S,
and the belt R, traveling therein and around pulley Q
The lower side of the pulley S3 is formed rigidly with a depending hub g
terminating in a horizontal miter gear wheel, which is adapted to mesh with
cne or the other of the opposing vertical miter-wheels on the transverse
shaft K, according as the latter is drawn out or pushed in, as hereinafter explained.
Rrepresents a collar at the extreme lower end of the shaft B. whose function
is to keep the pulley S and its miter gear-wheel in proper position on said shaft.
With respect to the two shell-pulleys and the volute-springs therein contained
it is to be noticed that one end of the upper volute spring H is secured to the.
pulley G (preferably to the inner end of the pivot-bolt whose outer end secures
the adjacent end of the cord 14, as already described) and that the other end of
this spring II is secured to the hub of the cross-bar 7, as shown at 6, and
hence that said upper volute spring is free from contact with the vertical shaft B',
while one end of the lower volute spring Q is directly attached to said shaft B',
as shown at me, and its other end is secured to the pulley, S. as clearly shown at »".
In Figure 1, I have shown the bell and adjuncts and omitted the same from the
other figures to avoid confusion in the drawings. S represents a bell supported
on an upright standard 6, rising from an arm T, which projects inward from the
left-hand side piece of the frame or casing of the machine. U is a post rising
from the inner end of said arm, this post being shouldered and provided at its
upper end with a vertical stationary spindle or journal to form the bearing
for the hub of a hell-crank lever, one arm of which carries a knob at its
end to impinge against the hell while the other arm . projects in the path
of a downward-projecting pin on the wheel T, (which I term the "stop-
wheel") said arm being provided with a downward bend, as shown at 6 to
nable it to escape contact with the herein before-named margin-regulator U³.
W represents a spring secured to the spindle or journal above said bell-crauk-

page_text: lever hub to engage with an upright pin 26 on the arm to of said lever to force
the knob so against the bell St at the proper time.
The operation of the machine will be readily understood from the foregoing
description of its construction taken in connection with the accompanying
drawings.
I will first describe the manner of securing the sheet of paper to be type-
written upon to the platen J. The said sheet is secured vertically around said
platen, as indicated in Figures 5 and 11. First of all the platen J is raised
above the plane of the ribbon L¹, which is done as follows: The operator places
his left hand on the hand-wheel F on top of the tube Y¹ (so as to regulate the
speed with which the platen. is raised) and with his right hand presses down on
the finger S, and thereby releases the dog from contact with the engaging
notch or tooth 2 of the side bar I of the platen supporting slide, when the said
slide will be automatically raised by the action of the spring H within the shell-
pulley G+, said spring causing said pulley to rapidly revolve thereby winding the
cord I around its periphery and raising the platen. When the platen is raised to.
the
when
proper height, the operator withdraws his hand from the said finger $2,
the spring draws the lever-arm Q2 inward on its pivot-bolt and causes
the said dog to again engage with a notch or tooth and hold the platen-sup-
porting slide in its raised position. The operator next presents the right-hand
vertical edge of the sheet of paper E against the platen back of the outwardly.
projecting ends of the described open annular paper-clamps 12 D², holding the
sheet in his left hand, and with his right hand revolves the platen by means
of the hand-wheel F2 just named, the said clamps 12 D being adjusted at the
proper distance apart, according to the height of the sheet of paper these clamps
being held in any adjusted position (to which they have been moved on the
vertical rod by hand) by frictional contact of the spring-bands of said clamps
and their rollers e²² against the platen and the said sheet of paper thereon. As
the platen is thus revolved by the hand-wheel F on the tube Y, which encloses
the square vertical shaft P, the said sheet of paper is next engaged by the
described vertical rubber cylinder 2, which thus acts as a feed-roller and draws
the paper in around the platen, between the latter and the said rollers e e² on the
clamps D2 D2 until the said sheet is firmly secured in place with the other
ends f of said clamps D2 bearing also on the said sheet, as shown in Figure 5.
The platen J with the paper in proper position thereon, is then pushed downward
by pressure on the said hand-wheel F2 to the proper position, so that the upper
part of the sheet, on which the first line is to be type-written, will be in line with
the ribbon L. The type-keys Care struck in the ordinary way, and as each
key C is depressed (against the force of its retracting-spring "V) it carries down
with it the forward end of its lever T, whose rear end is pivoted on the transverse
shaft G¹, and this downward movement of the key-lever I draws down its link T,
and as the other end of said link is pivoted to the oblique foot u of the corre
sponding type-bar U (pivoted on the arc-shaped rod P) the free upper end of said
type-bar is thereby thrown over toward the platen, and the character-bearing
plate Uon said end of the type-bar is thus carried between the front pair of
tongues of the ribbon-holder M and against the ribbon L, thereby forcing said
ribbon and holder against the sheet of paper on said platen, (against the force
of the spring of the said ribbon-holder), making the desired impression. As the
operator's finger is removed from the type-key just struck the retracting-spring V
carries the key-lever T back to its normal position, and the retracting-spring k
performs a like office for the ribbon-holder M. The shift when the upper
character on the plate U of the type-bar is to be impressed is accomplished as
follows: The operator with his left hand depresses the shift-key E, which
depresses the forward end of the shift-key lever S on the left-hand side of the
machine, whose rear end is rigidly secured to the transverse shaft G¹, as already
described, and this movement draws down the link R¹ and the short arm 7 of the
shift lever Qq on said left-hand side of the machine, and the same action takes

page_text: their
rear
rear
place with the lever S, rigidly secured at its rear end to said shaft G¹ on the
right-hand side of the machine, and consequently this draws down the link R¹
and short arm of the shift-lever on said right-hand side simultaneously, thus
throwing both shift-levers QqQg and their posts Q into the position shown (for
the left-hand set) in dotted lines in Figure 1, against the force of the spring ".
The arc-shaped rod P. being carried by the long arms Q of the shift-levers, when
thus thrown back gives a different center to the arc of the circle through which
the character-plate 1 of each type-bar U moves in making the impression against
the platen from that occupied before making the shift, and hence when the parts
have been shifted, as described, the upper part of said plate U₁ will strike
against the ribbon and in order that the face of the type or character may
always strike squarely as the platen has a vertical face in my machine, I have
slanted the upper and lower characters on the plate U in opposite, directions, as
already set forth, and I have already described how the shift-lever may be locked
to continue the use of the upper characters exclusively when desired and how
the retracting-spring will restore the parts to normal position after unlocking
the same or after shifting a type-bar when the shift-levers are not locked. The
spacer-bar levers EF, as stated, are pivotally attached to the transverse shaft G¹
at their rear ends like the key-levers T, and the operation of all of these
levers E F and CCC et cetera, is exactly the same. All of these levers rest upon
the cross-bar 61, whose ends are connected to the abruptly-rising forward ends.
of the described levers CD'. Now as either the spacer-bar D or one of the type-
keys C is depressed this action (through the levers of the spacer-bar or the key-
lever) depresses the said cross-bar whose levers (1) are rigidly secured at
ends to the
rear transverse shaft B, and thus partly
revolves said shaft B', thus depressing forward end of the lever Wa
whose
end is rigidly secured to said shaft B¹
as already
described, said lever W being supported by the link H³, as best shown in
Figure 9, and said link being connected by its loop to a pin b on the segment F
while the upper end of said link is secured to a pin N3 on the dog-lever L³, as
already described, and the result of this depression of the forward end of the
said lever W is to pull down (through said link H³) on said dog-lever L³, bring-
ing the stationary dog kon said lever down out of contact with the toothed or
notched horizontal wheel 0, which is fast on the shaft P3 of the platen (which
stationary dog held said wheel 03 stationary) and drawing the dog pt on the
sliding plate Mon said lever L³ into contact with said wheel 0. The moment
the stationary dog 4 is released from contact with the notched periphery of the
wheel 03 and its place taken by the dog on the sliding plate the force of
the volute spring Q within the shell-pulley S3, will partly revolve the said
pulley S, and the belt R³ in the peripheral groove of pulley will partly revolve
the pulley Q, rigidly secured to the lower end of the shaft P, until the sliding
plate reaches the limit of its movement on the lever L, which is a distance equal
to just one notch on the periphery of the said horizontal wheel 03, when the
wheel is again brought to a standstill, but meanwhile in the just-described
movement of the pulley Q3 the attached squared shaft. P has been partly revolved
a corresponding distance, thereby carrying the platen around to present on
the sheet 2 the space required for the impression of one character on the plate Uj¹
of the type-bar U. The moment the operator's finger is removed from the type-
key (or spacer-bar) after depressing the same the retracting-springs V1 or hi (as
well as the retracting-springs of the levers C₁ D) will restore the various
levers to their normal positions and turn the transverse shaft 131 back to its former
position, thereby raising the lever W. freeing the dog from and restoring the
stationary dog to engagement with the notched wheel 0, the said dog **
now occupying of course, the next notch ahead of that which it occupied before
the wheel was moved by the movable dog p, and the latter on its release
is moved forward to its former position by the action of the spring against the
rear end of the sliding plate M³.. When the first line of type-writing is nearly

page_text: completed across the sheet 2, the bell S gives warning by reason of the contact
of the pin V, which is on the under side of the stop-wheel T, with the adjacent
arm of the bell-crank lever, followed immediately by the action of the spring W
against the pin on said arm, when the pin V has moved past the said arm,
and when the type-written line is completed-say with from seven to ten impres
sions or impacts of type-keys after the bell has sounded, according to the location
of the pin on the stop-wheel or as soon after the bell has sounded as is
desired within said limits the operator presses the margin-key G, which depresses
the lever J, and through the rod M² secured to said lever and also secured to the
lever, also depresses said lever V, thereby, through link and its loop c¹
and pin on segment 3, drawing down the left-hand side of said segment,
which latter moves on its pivot ³, and by reason of the segment-fork, which
straddles the pin D3, projecting from the sliding-plate E on the table 7, this
movement of said segment F3, pin 13, and sliding plate 3 serves to retract
the lever L, connected to said sliding plate, and thus draws the dog on the
end of said lever laterally away from engagement with the notched or toothed
wheel. This same movement of the pin 13 carries the fork ( back toward
the standard H of the machine, and as this fork (3 is rigid with shaft of the
stop-arm 13 the said stop-arm B is thrown forward in the path of the margin-
regulator on the wheel T3, and as the shell-pulley S is now no longer held
from revolution by the described engagement of one of the dogs on lever L
and the teeth or notches on wheel 0, the spring Q within said pulley $3 is free
to revolve the latter, and this, through the belt R³ and pulley Q, revolves the
shaft and with it the stop-wheel T3, rigidly secured to said shaft P, until the
margin-regulator U encounters the said stop-arm 133.
The described depression of the margin-key G not only accomplishes the just-
.described results, but further, when the described rod M is depressed by such
action the end of said rod which projects over the platen-raising lever, He depresses
said lever Hand draws down on the link T, and this link pulls down the outer
end of the lateral arm R2 of the L-shaped lever Q2 R2, (see Figures 6 and 7,) and
as said lever is thus tilted on its pivot ³ the stationary dog is moved laterally
out of its engagement with a tooth or notch 2 on the side bar I', and the dog jon
the sliding plate W2 is brought into engagement with that same tooth or notch.
whereupon the action of the spring H revolves the pulley G, winding up the
cord in the grooved periphery of said pulley, and thus raising the plate J.
This upward movement of the platen is checked when the lower end wall of
the slot in the sliding plate We encounters the shank of the lower headed
pin m³, the cam-head U2 in the device as adjusted in Figure 7 being arranged to
permit the upward movement of the platen for the space of only one notch or
footh, and hence for a "single line" elevation of the paper fast on said platen:
but if the lever-handle of said cam be depressed then the cam-head 2 will
be turned so that the movement of the sliding plate W2 and the dog will be
equal in height to that of two adjacent teeth or notches 2, and then the platen
and its paper will be raised a double or two-line" distance. The moment the
operator removes his finger from the margin-key G the lever He is raised by means
of its spring L, and as the link T is stiff this link raises the outer end of
said arm R back to its normal horizontal position and throws arm Q back from
a tilted to its normal vertical position, thereby pushing the sliding-plate dog
laterally out of engagement with the notch or tooth it has just occupied or
engaged with and pushing the stationary dog into engagement with the next
lower notch or tooth if the cam-head is set for a single tooth and line adjust-
ment or the second lower notch or tooth if the cam-head is set for a double
tooth or two-line adjustment. In the previously described movement of the
segment (when the margin-key G was depressed) said segment was tilted over
to the left and that side brought down by the link 13, the upper end of the loop
of said link being in engagement with the pin and the segment held in this
position by engagement of the dog on spring G3 with the left-hand notch
in

page_text: said segment.
At the same time this tilting of the segment has resulted in
raising the pin up to the upper end of the loop of link H³, and when the
margin-key G is released and the lever H2 is raised by its spring L², all as
stated, the rod M2 is also raised by lever He and with it the lever V3, fast on the
other end of said rod Me, and this upward movement of the lever V3 raises the
link I, the lower end of the loop et being now in contact with the pin, the
relative positions of loop and pin b being unchanged from the last-described
relations. The effect of the foregoing-described movements consequent upon the
depression and subsequent release of the margin-key G is practically to revolve
and raise the platen. so as to carry the paper fast thereon around to the point
where the next line is to be started, so that the paper on the platen is in position
to receive the impact of the first letter or character on said new line. The first type-
key C struck (or first striking of the spacer-bar D if that is to be now first used)
will depress cross-har band levers CD, turning the rear transverse shaft B',
and hence depressing the forward end of lever W, (whose hub is rigidly
secured to said shaft B) which draws down on link H, and thereby. (as the top
of the loop of said link is now against the pin 64) drawing down the elevated
right-hand end of segment F3, whose fork moves the pin D3 away from the
standard H, carrying with it the slide and attached lever L, thus bringing
the dog p on the sliding plate M³ into engagement with a notch or tooth on the
wheel (spring Q now being permitted to revolve pulley S3, and thus move
wheel 03 one notch), and this movement of the pin D3 will also carry the fork. (3
with it away from the standard I, and thus cause the stop-arm 133 to recede from
the path of the margin-regulator U. This movement of, the segment 3 causes
the left-hand side of said segment to rise, carrying the pin up against the top of
the loop e of link I and also causes the dog on spring G³ to escape from
notch and engage with the right-hand notch y³ of the segment. The moment
the operator's finger is removed from the said just-struck type-key C (or spacer-
bar D) the levers CD¹ are raised by their springs thereby revolving rear trans-
verse shaft B back to its normal position, and thus raising lever W³ to
its normal position, and this is turn elevates link H³ to its normal position,
with the lower end of its loop d against pin 4, and said upward movement
of lever W and link H³ also raises the adjacent end of the lever L (on
its pivot ) by reason of the pin Non said.lever and ring or eye at the top of
the upper end of said link H³, which elevates the dog on sliding plate 3
above and free from the wheel and causes the stationary dog on said lever L³
to engage with the notch or tooth on the wheel O' next to the one just vacated by
the sliding-plate p+, the several parts being now all in the relative positions best
shown in Figure 9.
It only remains to describe the especial function of the platen-raising key.F.
The platen-raising lever He has been described, with the manner in which it was
operated by the margin-key G; but it may also be operated directly by its
own key Findependently of the margin-key and is to be so operated whenever
the platen is to be raised a short distance without being revolved, as, for example,
when it is desired to widely separate two paragraphs or leave considerable blank
space intermediate of the top and bottom of the sheet being type-written. In such
cases all that is done is to depress the said platen-raising key F and repeat this
action until the platen is raised to the desired height, according to the required
space to be left on the said sheet between the lines of type-writing. Each depres-
sion of the key F will raise the platen the space of either a line or two lines.
according to the position of the described cam-head U2 at the time.
When the sheet of paper is fully type-written upon or otherwise completed, it
may be readily removed from the machine as follows: The operator places his left.
hand on the hand-wheel F2 and depresses the finger S with his other hand, so
as to control the ascent of the platen, just as described herein before, when putting
the paper on the platen. When the latter is raised to the required height, he
removes his left hand from the hand-wheel and his right hand from the finger S³,

page_text: and now takes hold of the hand-wheel. Fe with his right hand and with his left
hand presses the push-rod A3 against the adjacent end of the lever L3, which turns
said lever, on its pivot f, thereby withdrawing dog from engagement with the
teeth or notches of wheel 03, and in order to prevent the lever being drawn back
by the spring K³, so that the dog would again engage, the hereinbefore-named
pivoted latch is dropped into the notch in said push-rod A. When these
parts are thus held against movement, the operator begins to turn the platen J in
the opposite direction from that employed in feeding the sheet of paper to said
platen, and as said sheet begins to emerge from its position between the platen
and the open annular paper-clamps D2 12 he grasps said sheet with his left hand,
meanwhile continuing to turn the hand-wheel F2 and platen with his right hand,
and thus quickly completes the said removal. As soon as the paper is removed
the push-rod A3 must be freed from the latch ", so that the dog may be again
thrown into engagement with the notched or toothed periphery of the wheel 0.
One great advantage of my machine is the fact that the platen is always
revolved in one direction, and hence there is no time lost in carrying the platen
back from the end of one line to the beginning of the next, as in the case of the
ordinary machines with horizontally-disposed platens.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
1 claim is:-
1. In a type-writing machine, the combination of a vertically-disposed horizon-
tally-rotatable platen, type-bars, type-bar-actuating mechanism, and mechanism
for rotating said platen actuated by the actuation of said type-bar-actuating
mechanism. substantially as described.
2. In a type-writing machine, the combination of a vertically-disposed horizon-
tally-rotatable platen, type-bar-actuating mechanism a motor tending constantly to
rotate said platen, and mechanism actuated by the actuation of said type-bar-
actuating mechanism for permitting the rotation of said platen by said motor,
substantially as described.
3. In a type-writing machine, the combination of a vertically disposed horizon-
tally-rotatable platen, type-bars, type-bar-actuating mechanism, a spring tending
constantly to rotate said platen, mechanism actuated by the actuation of said type-
bar-actuating mechanism for permitting the rotation of said platen by said spring,
substantially as described.
4. In a type-writing machine, the combination of a vertically disposed horizon-
tally-rotatable platen, type-bars, type-bar-actuating mechanismi,. mechanism
actuated by the actuation of said type-bar-actuating mechanism for rotating said
platen, and mechanism for raising said platen and rotating the same the required
distance to provide the necessary margin, substantially as described.
5. In a type writing machine, the combination of a vertically-disposed horizon-
tally-rotatable platen, type-bars type-bar-actuating mechanism, a spring acting
constantly to rotate said platen, mechanism actuated by the actuation of said
.type-bar-actuating mechanisin for permitting the rotation of said platen by said
spring, a spring acting constantly to move said platen longitudinally. and
mechanism for permitting the longitudinal movement of said platen by said
spring, substantially as described.
6. In a type-writing machine the combination of a vertically-disposed horizon-
tally-rotatable platen, type-bars, type-bar-actuating mechanism, mechanism for
rotating said platen actuated by the actuation of said type-bar actuating mechan-
ism, mechanism for moving said platen longitudinally, and a lever and key for
operating said last-mentioned mechanism substantially as described.
7. In a type-writing machine, the combination with a horizontally-disposed
keyboard, comprising a series of type-keys and a spacer-bar supported in a suitable
frame, vertical standards rising from each side of said frame back of the keyboard
connected by a yoke-shaped cross-piece and provided with suitable guides or

page_text: ways, a platen-supporting slide having side bars vertically movable in said guides
or ways, and upper and lower connecting cross-pieces, a vertically-arranged platen
supported in said slide, vertically-disposed revolving shafts back of said platen,
ribbon-spools on the upper ends of said shafts, a ribbon-holder on the said yoke-
shaped cross-piece in front of the said platen, a ribbon extending from spool to
spool around and in front of said platen, and through said ribbon-holder, said
ribbon being vertically disposed with respect to its width, and a series of type-
bars arranged in front of the platen and connected at their lower ends to the type-
key levers, and with their free upper ends adapted to move toward and from the
said ribbon-holder in the arc of a circle..
8. In a type-writing machine, the combination with a vertical platen, and
a ribbon, of a ribbon-holder comprising a suitable support transversely-perforated
lugs projecting upward from said support, a pivot journaled in said perforated
lugs, a bell-crank lever having an upper and a lower arm united by a sleeve
mounted on said pivot, means for normally depressing the free outer end of
said lower arm, and two pairs of tongues, or forks, projecting from said upper
arm to receive the ribbon between them.
9. In a type-writing machine, the combination with the key-board, type-keys,
and key-levers, of a vertically-arranged platen, a yoke-shaped cross-piece in front
of the same, a ribbon-holder pivotally secured to and rising from said cross-piece,
and having two pairs of tongues or forks projecting from the upper end thereof to
receive the ribbon between them, means for keeping said ribbon-holder normally
away from contact with the platen, and a series of type-bars connected to said key-
levers and adapted to strike against the ribbon between the forks of the ribbon-
holder and carry said ribbon against the platen, with every depression of a type-
key.
10. In a type-writing machine, the combination with a vertically-arranged hori-
zontally-revolving platen, type-bars, and operating-keys therefor, of means for
raising the platen, and means for regulating the ascent thereof, means for
checking the said ascent, and means for lowering said platen, all at the will of
the operator.
11. In a type-writing machine, the combination with a vertically-arranged hori-
zontally-revolving platen, of a series of open annular paperclamps carried by and
rotating with the platen and having frictional contact with said platen.
12. In a type-writing machine, the combination with a vertically-arranged hori-
zontally-revolving platen. of a series of open annular spring-bands provided with
a series of rollers carried by and rotating with the platen and having frictional
contact with said platen.
13. In a type-writing machine, the combination with a vertically-arranged hori-
zontally-revolving platen, of a series of open annular paper-clamps having
frictional contact with said platen carried by and rotating with said platen,
and a vertical feed-roller arranged in a line parallel to that of said platen, and
near the openings in the said annular paper-clamps.
14. In a type-writing machine, the combination with a vertically-arranged hori-
zontally-revolving platen; of a series of open annular flat spring-bands surround-
ing said platen, and carrying a series of rollers in contact therewith and being
carried by and rotated with the platen, and a vertical feed-roller arranged in a
line parallel to that of said platen and near the openings in the said bands.
15. In a type-writing machine, the combination with a vertically-arranged
horizontally-revolving platen having flat rings at each end thereof, of a vertical
rod uniting said flat rings and stationary therein, a vertical feed-roller revolubly
journaled in said flat rings, and a series of open annular slotted spring-bands
surrounding said platen and movably supported on said vertical rod, and with the
openings of said bands adjacent to said feed-roller, together with a series of
rollers mounted in the slots of said bands and having frictional contact with
said platen,

page_text: 16. In a type-writing machine, the combination with a suitable frame; and a
platen-supporting slide movable therein, of a vertically-disposed platen compris-
ing a hollow cylinder with an exterior covering of india-rubber; a circular
base-piece having a vertical annular flange fitting within the said hollow cylinder
and a vertical central tube extending upward through and above said hollow
cylinder, and below said base-piece, and said tube having a bore square in cross-
section and an annular plate surrounding the said annular flange of the base-
piece and resting on the circumferential portion thereof, and having an upwardly
off-set outer edge; a flat ring held between the base-plate and superimposed
annular plate; a cap-piece forming the counterpart of the base-piece and provided
with a central opening for the passage of the central vertical tube therethrough:
an annular plate resting on the top of the platen just below the cap-piece and
having downwardly-offset outer edge; a flat ring held between the cap-piece and the
last-named annular plate; a vertical shaft square in cross-section passing through
the said vertical central tube, on which shaft said platen is vertically movable ;
a hand-wheel in the upper end of said shaft and a series of operating wheels on
the lower projecting end of said shaft.
17. In a type-writing machine, the combination of a frame, a platen, a pair of
bell-crank levers pivotally supported and connected by a bar, a series of type-
bars pivoted on said bar, type-keys and connection between the same and the
type-bars, a shift key, and operative connections between the latter and said bell-
crank levers, substantially as described.
18. In a type-writing machine, the combination with a horizontally-disposed
keyboard and vertically-arranged platen, type-keys, key-levers, type-bars and a
shift-key and shift-key levers, all properly connected together, with a suitable
frame or casing therefor of a pair of bell-crank shift-levers pivotally connected
to said frame or casing; and to said levers, and means for shifting the type-bars
independently of the shift-key, as well as for locking the shift-levers in their
shifted position, and for releasing them from such position and restoring the
parts to normal condition.
19. In a type-writing machine, the combination with a horizontally-disposed
keyboard and vertically-arranged platen, and suitable supporting-frames therefor,
of a pair of bell-crank shift-levers pivoted, one on each side, to the side pieces of
the upper part of the frame or casing on the inner sides thereof; a shift-key on
one side of the key-board; a retracting-spring connecting the shift-lever with the
side piece of the frame on that side: stops or pins projecting inwardly from the
side pieces of the frame, on both sides, to limit the backward movement of the
shift levers posts projecting obliquely forward from each shift-lever and con-
neeted by a transverse bar having right-angled ends projecting rearwardly; an
are-shaped rod connecting the upper ends of the long arms of the shift-levers:
a series of type-bars pivotally arranged on said rod and having obliquely disposed
feet projecting downward and rearward beyond said rod; a fransverse shaft jour-
naled in the side pieces of the frame; key-levers connecting said transverse shaft
with the type-keys of the keyboard: links connecting the feet of said type-bars
to the said key-levers: a shift-key lever on one side of the frame connected
at its forward end to the lower end of the shift-key and at its rear end to the said
transverse shaft; another shift-key lever on the opposite side of the frame,
connected at its rear end to said transverse shaft, and at its forward end pivotally
connected by a link to the short arm of the bell-crank shift-lever on that side
and another link similarly connecting the other bell-crank shift-lever with the
other shift-key lever.
20. In a type-writing machine. the combination with a suitable frame or casing
and a bell-crank shift-lever pivotally connected thereto, and type-keys and levers.
and type-bars pivotally connected together and to said shift-lever; of a retracting-
spring connected to the long arm of said shift-lever and to said frame or casing:
a locking-cam rigidly secured to one end of a shaft journaled in the adjacent

page_text: side piece of said frame or casing above and in vertical line with the short arm
of said shift-lever; and a finger rigidly secured to the other end of said shaft,
said cam and finger projecting at practically right angles to each other.
21. In a type-writing machine, the combination with a horizontally-disposed
key-board and a vertically-disposed platen, and series of type-keys, key-levers,
shift key and shift-key levers; of a pair of bell-crank shift-levers; an arc-shaped
rod connecting the upper ends of the long arms, of said shift-levers: and a series
of type-bars pivotally arranged on said rød and linked to said key-levers, the free
ends of said type-bars each bearing two printing characters, slanting in opposite
directions from the center of said ends, whereby when any one of said type-bars
makes impact against the platen, the character struck will always stand exactly
vertical and give a direct horizontal impression, whether the said type-bar is in its
normal or shifted condition.
22. In a type-writing machine, the combination with a horizontally-disposed
keyboard and a vertically-disposed platen, of vertical standards on each side of
said platen, said standards having vertical grooves therein, and being united, near
their upper ends, by a yoke-shaped cross-piece: a platen-supporting slide, having
side bars adapted to move vertically within the said grooves in the standards, and
united by upper and lower cross-bars, between which the said platen is supported,
and one of said side bars having a vertical series of teeth or notches: a vertically-
movable shaft extending entirely through the center of said platen and through the
said cross-bars, and so secured to the platen that the latter is capable of moving
freely up and down on said shaft, but incapable of revolution independently of
said shaft: a line-spacing mechanism having dogs in adjustable engagement with
the toothed or notched side bar and means for automatically elevating the platen
and supporting-slide on the withdrawal of one of said dogs from its contact with
said side bar.
23. In a typewriting machine, the combination with a horizontally-disposed
keyboard, a vertically-disposed platen, and type-bars arranged to present the
type vertically to the platen, of a key and connecting mechanism for raising
said platen at the termination of each line so as to continuously and successively
revolve the platen in one direction only, from start to finish of the sheet being
written upon, by the successive depressions of the different keys only.
24. In a type-writing machine, the combination with a horizontally-disposed
keyboard, a vertically-disposed platen, and type-bars arranged to present the type-
vertically to the platen, of a single key and connecting mechanism, for automati-
cally raising the platen at the termination of each line and simultaneously revolv-
ing said platen the required marginal distance for the beginning of the next fine.
so that said platen is continuously and successively revolved in one direction
only, from start to finish of the sheet being written upon, and with each line
beginning at the predetermined distance from the edge of the said sheet, by the
successive depression of the different keys only.
25. In a type-writing machine, the combination with a horizontally-disposed
keyboard and a vertically-disposed platen, of a margin-regulating key for auto-
matically raising said platen and beginning each new line at a stated distance
from the edge of the sheet being written upon, and adjustable means for predeter-
mining the said distance as desired, said platen being continuously revolved in
one direction only, without lateral change of position of said platen.
.
26. In a type-writing machine, the combination with a keyboard having type-
keys and levers, and a series of type-bars and a platen-raising key, and connecting
mechanism of a vertically-disposed platen, supported on a vertically-movable
frame, and movably mounted on a vertical shaft: and another vertical shaft carry-
ing two horizontally-disposed shell-pulleys, each containing a volute spring
arranged to revolve said pulleys in opposite directions, one of said shell-pulleys
being geared to the lower end of the first-named vertical shaft so as to auto-
matically revolve said platen with each depression of a type-key, and the other

page_text: shell-pulley being connected by cord and pulleys to the said platen-supporting.
frame, so as to automatically raise said platen with each depression of the platen-
raising key.
Datod this 8th day of December 1899
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.