Improvements in or relating to Typewriting, Matrix Making, and like Machines.
Year: 1896

page_text: Date of Application, 23rd June, 1896-Accepted, 7th Nov., 1896
COMPLETE SPECIFICATION.
Improvements in or relating to Typewriting, Matrix Making, and
like Machines.
A communication by THE STENOTYPE COMPANY, of 39 Exchange Street,
Portland, in the County of Cumberland and State of Maine, United States
of America.
I, GEORGE CECIL DYMOND, M.I.M.E., of the Firm of W. P. Thompson & Co.
of The Agency for Foreign Patent Solicitors, 6 Lord Street, Liverpool
and 6 Bank Street, Manchester both in the County of Lancaster, 118 New
Street, Birmingham in the County of Warwick and 322 High Holborn in the
County of Middlesex, Patent Agent, do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
This invention relates to improvements in linotype machines, and refers.
particularly to that class of machines in which an impression is taken from a
complete line of type. The object of the improvements is to produce a machine
for rapid printing. The sub-objects of the improvements are;-1st. To provide
in one machine mechanism which will automatically set up or align a line of type
from which impressions are to be taken; 2nd. Mechanism by which said composed
line of type is moved to the printing point; 3rd. Mechanism for there taking an
impression from such line of type upon a sheet of paper carried by a movable and
automatically operated paper carriage. 4th. Mechanism by which after printing
the composed or aligned line of type is distributed; and 5th. Mechanism whereby,
during the printing operation, the composing or aligning devices can be
continued in operation and be ready to simultaneously compose or align a line
of type, so that the operator can work continuously at the key-board, as above
stated.
The reference letters and figures herein refer to the accompanying drawings,
which illustrate the machine, and in which:
Figure 1 is a vertical central section through the machine on line 1-1,
Figure 2.
Figure 2 is a plan view of carriage with cylinder casing in section on line 2-2,
Figure 1.
Figure 3 is a detail section looking down on the line 3-3, Figure 1.
Figure 4 is a cross section on line 4-4, Figure 1 enlarged.
Figure 5 is a detail side elevation of Figure 4.
Figure 5A is a detail view of the stop arm shown in Figure 4.
Figures 6 and 7 are perspective views of parts of type-bars.
Figure 8 is a detail of the main supporting shaft and clutch operating
devices.
Figure 9 is a transverse section on line 9-9, Figure 1.
Figure 10 is an elevation of the escapement mechanism.
Figure 11 is a plan view of the top plate on Figure 10.
Figure 12 is a cross section on line 12-12, Figure 10, looking down.
Figures 13 to 18 are details of the escapement mechanism.
Figure 19 is an enlarged sectional view of the lower part of the pin-cylinder,
and an elevation of the lower operative mechanism of the machine.
Figure 20 is a bottom plan view of Figure 19.

page_text: Figure 21 is a view at right-angles of the parts shown in Figure 19.
Figure 22 is an enlarged cross section on line 22-22, Figure 19 looking
down.
Figure 22 is an enlarged detail of the trip mechanism for lowering the type-bar
holder.
Figure 23 is a diagram showing the cycle of operation of the mechanism of the
machine.
Figures 24, 25, 26 and 27 are diagrams illustrating the various positions of the
type-cylinder and paper carriage.
Figures 28, 29, 30 and 31 are details of the locking devices of the type-bars.
Figures 32 and 33 illustrate the switch for controlling the descent of the type-
bar holder.
Figure 34 is a detail view of the devices for rotating the type-holder and moving
the paper carriage.
Figure 35 is a diagram of the electrical circuits and connections in the
machine.
Figures 36, 37 and 38 are details of the switch mechanism controlling the
starting and stopping of the motor.
Figure 39 is a top plan view, partly broken, showing the relative arranging and
position of the several parts.
Figure 40 is a detail horizontal view of the upper portion of the casing partly
in section showing the inking device.
Figure 41 is a detail in elevation of the inking rolls.
Figure 42 is a broken elevation of athe cylinder and type-bar holder which has
telescoped the cylinder and been withdrawn therefrom, showing a number of the.
movable type-bars in printing position and alignment thereon.
Figure 43 is a detail view of the portion of the bank of magnets showing the.
construction in detail thereof.
From a plate A depends a vertical cylindrical casing A¹ closed by a bottom
plate A from which rises a fixed shaft or support A that extends up into a
cylindrical casing a on plate A vertically over casing A¹.
Within casing A' is the pin-cylinder B having a gear B¹ on its bottom, whose
hub encircles the shaft A3 and has a collar B3 on its lower end supported on ball
bearings on plate A². On the hub of gear Bis loosely journaled a gear b, and
between the gears B' b is a spring 6' having one end fastened to pin B on gear B¹
and the other end to pin on gear 6 so that said spring will tend to revolve the
gears oppositely as hereinafter described.
The gear B meshes through a slot in the side of casing A' with the first one D
of a train of reducing motion gears D, D', D2 and D³ mounted on shafts journaled
in bracket-plates D³, De secured to the side of the casing A¹, Figure 10. The
shaft D of gear D³ extends above plate D, and on it is a disc d, Figure 12,
which has seven equi-distant radial slots d¹ in it, in each of which slots is a latch d²
confined by an annulus d³ engaging a slot in its inner end which is split as shown
in Figures 15 and 18, so as to bind in the slots with sufficient friction to hold the
latch up, when lifted, unless forcibly depressed. The latch d2 that is furthest from
the casing A¹ is engaged by a catch G hereinafter described, so as to lock the disc
and through the gearing, the pin-cylinder B, until the catch is depressed and the
latch released.
Above disc d is a plate F supported on posts F¹ attached to plates Ds, Do
From plate F depend six pairs of stationary electro-magnets f³, f³, ff, fo
and one pair over each of the latches d, except that one engaged by the
catch G. Each latch d² carries an armature d which will be attracted to the
magnet immediately above it when the latter is energized. A roller F7 on
the lower end of: a stud F is arranged to return all latches that pass catch G to
position in slots.. The upward throw of catch G can be regulated by rod G and.
nut G2, a spring G³ on said rod always tending to throw the catch upward.
.
Ou rod G¹ is a cross-bar G which forms the armature of electro-magnets G³

page_text: mounted on plate D³, Figures 10 and 13, consequently when magnets Gare
energized catch G is disengaged from latch d and the pin cylinder rotates until
catch G engages another latch d².
Gear & meshes with a pinion 15 on a vertical shaft i exterior to the cylinder A¹
and a, driven by a bevel gear I meshing with a bevel clutch gear Jon a hori-
zontal shaft J journaled in brackets A below the bottom plate A. Shaft J is a
main driving shaft of the machine and is intermittently rotated, preferably by an
electric-motor, indicated at J in the drawings, Figure 1. The gear J' is loose on
shaft J, but can be locked thereto by a clutch collar J³ splined on the shaft and
which can be shifted into or out of engagement with gear J', as hereinafter
described, and when gear J is locked to shaft J, shaft I will be rotated and the
spring wound up.
.
The type-bar holder is a part-cylinder which enters the casing a or pin
cylinder B, and is about twice as long as the said pin-cylinder, and is kept in
upright position by and guided on shaft A3 by means of yokes K', K². The
upper yoke K rests on ball bearings & on collar 2 slidably fitted on shaft A³ and
rigidly fastened to a bar fitted in a vertical channel in shaft A3 flush with the
surface of said shaft. The lower portion of the sliding bar k is provided with a
rack which meshes with a pinion 2 on a sleevej mounted on shaft J and having
a clutch on its other end adapted to be engaged with clutch J3 when the latter
is disengaged from clutch gear J. By this means the type-holder is raised and
lowered in the cylinders a and B. The holder descends by its own weight when
clutch Jis disengaged from clutch ', and is raised when clutch J³ is engaged with
the clutch and the motor circuit is closed, as hereinafter described. On sleeve j
is a gear meshing with a pinion on a shaft (journaled in brackets attached
to or depending from plate A2) and a gear jo and a shaft meshing with"
pinion cn a shaft (also journaled in brackets beneath plate A2) on which is a
fly escapement which can be locked by a stop m fixed on a movable rod m³
guided in suitable brackets, the stop being kept from rotating by a pin m* and a
spring m³.
a
Another bar N, Figures 8 and 22, is fitted into a longitudinal groove in shaft A³
opposite bar k, and has stops N', N fastened to it in position to be alternately
engaged by yoke K' when the type-bar holder reaches its highest and lowest
position, respectively, and shift bar N longitudinally. The lower end of bar N
engages with an arm n¹ on a rock shaft a journaled in proper bearings below and
transversely of clutch J³ (see Figures 8, 20, 22) and to said shaft n is attached the
bifurcated shifter n² which engages clutch J³. Thus as the type-bar holder
reaches the end of its up stroke it shifts bar N and causes it to disengage clutch .J³
from clutch gear J, but when the said type-bar holder reaches the end of its
down stroke it shifts bar N and causes clutch J³ to disengage clutch J and engage
clutch . When clutch J³ is disengaged from clutch j¹ and the stop m disengaged
from fly nothing will prevent the descent of the type-bar holder into the pin-
cylinder, the speed being governed by the train of gearing connecting sleevej with
Hyok
Yoke K2 has a bushing K' which fits neatly around the shaft A³, and is secured
in the said yoke by suitable means. This bushing may be slotted or grooved. if
necessary to accommodate the bars k and N, or rack k. The type-bar holder K
has both a rotary motion and an endwise movement and is lowered into and raised
from the pin-cylinder during one-fourth of a revolution thereof.
Figures 24 and 25 are diagrams showing respectively, the relative position of
parts when the holder is ready to descend into, and just after it has been
withdrawn from the pin cylinder, in which interval a one-fourth revolution has
been made.
After the holder has printed a line and reached the position indicated 'in
Figures 24 and 32 a circuit closer on the bottom of holder closes an electric circuit
between two contacts M M which are connected by wires M', Ms to opposite
poles of battery MP or Z and the, current flows through a tandem solenoid. M³
:

page_text: having a compound core M which is moved inward and its projecting end strikes
against rod m and pushes stop m from engagement with fly releasing the holder
which thereupon descends into the pin-cylinder, until its yoke & strikes lug n³ and
moves bar N, causing clutch J to engage clutch and simultaneously the current is
switched into the motor J, as hereinafter described, and the shaft J rotated to
drive pinion and raised the holder from the pin-cylinder up into the cylinder a,
until yoke K strikes lug N' and causes bar N and rock arms n', n2 to throw the
clutch J from engagement with clutch j and into engagement with clutch gear J.
When the holder starts upward stop m engages fly by the following or other
suitable mechanism.
A short rock-shaft O is journaled in suitable bearings above and transversely of
rod m and on said rock-shaft is an arm O' adapted to strike the rod m and push
said stop m and the core M of the solenoid M back to original position so that
the stop m will engage and lock the fly, and thus keep the holder K raised when
the clutch is disengaged from the clutch j' until stop m is moved inward by the
core M. Another arm O2 on shaft O enters a slot in the side of shaft A3 and
presses against the edge of bar k, in which edge near the bottom of the bar, is a
notch into which the end of the arm O2 drops when the holder (and bar) reaches
its highest position, thereby rocking shaft O and causing the arm O₁ to push the
stop m into position to engage fly, as described. The shaft is rocked by a spring o
or other suitable means. When the holder K and bar & are about to descend the
rod mis projected forward by the solenoid core M, disengaging stop m on rod m³
from the fly, and thrusting the end of arm O¹ toward the shaft A', rocking shaft O
and raising arm O' out of notch when the bar and holder will descend as is
evident.
The switch for controlling motor J is as follows:-P, Pl are two conductor
rings on, but insulated from shaft A3 and from each other. The upper ring P¹ is
movable and to it is attached a contact piece P adapted to make and break circuit
between the two rings. A suitably insulated spring p is attached to ring P and
a pin projecting from shaft A' and always tends to keep pieces P2 and P3 in
contact. As the holder K reaches the position shown in Figures 4 and 24 an
insulated arm Ke within and attached to the holder contacts with piece P2 and
moves it away from piece P sufficient to allow a spring-actuated insulated dog p
attached to bar N to spring between the pieces P2 and P3 and break contact and
closing circuit through motor, for rings P and P are connected to wires P and P'
which pass through an opening in shaft A, as shown, the wire P connecting with
a dynamo or other source of electricity, and wire P' to one binding post of the
motor J and wire Ps to the other. When the holder reaches its lowest position
and shifts bar N downward it draws dog p from between pieces P2 and P, which
then contact, closing circuit through the motor, which thereupon (clutch J* being
shifted into engagement with clutch j') raises the holder as described.
holder reaches its uppermost position and pulls bar N upward it disengages clutch J³
from clutch and engages it with clutch gear J, the current is not cut off,
because, while dog p is raised it cannot pass between the pieces P, P and is held
down, yieldingly, so as not to injure the pieces P2, P3 and remains in readiness to
jump between the pieces P, P when separated by the arm K", which occurs when
the holder has made a half revolution in its elevated position, then the motor is
cut out and the holder descends. When the holder is elevated and the motor
running, shaft is positively driven by the clutch J, clutch gear J and bevel
gear and winds up spring &, rotates the holder, and moves the paper carriage to
print, as follows:-On the upper end of shaft 1 is a pinion i meshing with a gear i
loosely mounted on shaft A and supported on collar fixed thereou just above the
top of the holder when in its highest position. To the under side of gear is a
stud or tooth i adapted to engage a recess or channel Q in the upper side of
segmental gear Q attached to top of holder K. These devices are so proportioned
and arranged that when the holder reaches its highest point and is freed from the
pin-cylinder, pin will engage gear Q and continue the rotation of the holder,

page_text: clutch J³ having just disengaged clutch and engaged clutch gear J. The
segment Q meshes with a rack Re attached to a paper carriage R. This rack is
permitted a slight longitudinal movement by springs R', to prevent the teeth on
gear Qand R breaking if they should not properly register by allowing the rack R
to slip forward until its teeth register with the gear. The carriage R is guided by
wheels R on horizontal rails Rlying transversely of cylinder a, and is provided
with a paper roll R³, a platten R, and guide and clamp rolls R, R. The
platten R² lies opposite a slot a³ in casing a and projects sufficiently inward to
contact with the type on the type-bars L on the type-bar holder, as the latter
rotates past said slot. The carriage travels at the same rate of speed as the holder
rotates, and takes an impression from such types as are horizontally in line with
the platten, and when aligned to spell words, the result will be a complete line
printed at each operation of the platten. As soon as the line is printed gear Qis
disengaged from rack R and the carriage R is quickly returned to the starting
point by any suitable meaus, and, as it is drawn back, the platten is automatically
turned to present a space for a new line of print by a ratchet and pawl device, or
any other suitable means. The assembled line of type may be inked prior to
printing by any suitable means. As shown in Figure 40 an inking roller W is
mounted in a slot in casing a in position to supply ink to the line of type on the
holder as latter rotates to make an impression. Roller W may be supplied with
ink from a distributer roller W2 which receives ink from the supply roller W',
which may be of absorbent material, or hollow, to contain ink and supply it to
roll W2.
In order to ensure register of the type-bar slots with the rows of pins in the pin-
cylinder, when the holder enters the latter, a collar U is loosely mounted on
shaft A3 or yoke K2 and provided with a radial arm U¹ which has a tooth U
projecting slightly beyond the face of the type on the type-bars. This arm is
connected to the yoke K2 by a spring U, and when the holder is released from
gear i the tooth U contacts with one of a pair of diametrically opposite dogs u
pivoted on the upper end of the pin-cylinder and pressed inward by a
spring u¹,
but have their movement limited by stops u. The said dogs pull the arms forward
and spring U draws the holder up until a key K' thereon registers with a vertical
groove B' in the pin-cylinder, when the holder drops, being guided in its descent
and moved along by and with the pin-cylinder, through the key K' in the groove B'.
The tooth U enters groove B8 in the pin-cylinder beside groove B. As the piu-
cylinder makes but a half revolution for each revolution of the holder K, there
are two pairs of grooves B7, B8, diametrically opposite to permit the said holder
to descend at its proper intervals.
The holder is rotated by and with the pin-cylinder while engaged therewith, and
when disengaged therefrom is then rotated independent thereof by the gear and
is released from the said gear when its revolution is completed and it is again in
position to have its arm U¹ caught by dog u and again engaged with said
cylinder.
In holder K are a number of vertical channels L³ in each of which is placed
type-bar L having on its outer edge the alphabet and punctuation points arranged
one above the other in any predetermined sequence. Each bar has a lug Lon
its lower end adapted to contact with the pins in the pin-cylinder and on its inner
edge teeth L adapted to be engaged by a locking device to hold the bars in
position when shifted in their grooves. This locking device (see Figures 1, 3, 28
and 31) consists of a plate 7 placed in a horizontal groove K³ in holder K and is
provided with teeth on its periphery adapted to lock the type-bars (as indicated
in Figure 3) by turning the plate forward, or disengage therefrom by turning the
plate back. The plate is shifted by a bell-crank lever pivoted in the holder, the
vertical arm thereof entering a slot in the plate l, and its horizontal arm adapted
to contact with a vertically movable rod within the holder. When the holder
is lowered into the pin-cylinder the rod strikes the bottom of the latter and engages
and rocks lever 1. After the holder has been elevated and the printing finished

page_text: the horizontal arm of lever 12 passes. (as the holder rotàtes) under an arm on
shaft A3 and is thereby depressed whereby the plate is returned to its original
position and releases the type-bars.
The pin-cylinder B is provided with vertical and horizontal rows of radial
perforations B in which are held movable pins C. At one side of the pin-cylinder
(see Figures 1, 9 and 23) are vertical rows of push pins C, there being as
many push-pins in a vertical row, as there are pins C in a vertical row in the
cylinder.
These push-pins are supported in perforations in the casing A¹ and in a plate Aº
secured thereto, and when any push pin is moved inward it will project a corre-
spondingly located pin in the adjoining row of pins in the cylinder B, which is
intermittently rotated to always bring un-acted upon rows of pins into register
with the rows of push-pins. The push-pins C' are normally retracted by springs C²
but are moved inward by rods C attached to the armatures C of magnets C³
which are energized when the corresponding key of the key-board is depressed.
Fig. 4 is a roller to return the pins C into their normal position.
Each push-pin has an independent maguet to operate it, and each key on the
key-board controls one particular push-pin, therefore, each key has a separate
connection with the magnet of the corresponding push-pin, but a common return
may be used for each series of push-pin magnets to the battery. I have indicated
seven rows of keys cl, cs, es, c, cb, c and c7 on the key-board, each row controlling
a series of push-pins; each pin has a direct connection with its corresponding
push-pin magnet, and below the series of keys is a common contact Z¹ connected
with the positive pole of the battery, so that when any key is depressed it
contacts Z and closes circuit through the magnet corresponding to the key-
depressed, which actuates the corresponding push-pin and causes it to project a
pin in a row in the pin-cylinder B which pin at the proper time will arrest a type-bar
in such position that the letter thereon corresponding to the key depressed will be
printed at the next printing operation of the machine. As shown I have arranged
two magnets tandem with their armatures connected to a common rod, which gives
a very quick acting device, and as soon as the current is broken the rod will be
thrown back by the retraction of the displaced push-pin C2. These magnets are
preferably arranged in bank as shown in Figures 1, 9, 39 and 43, the magnets C
being arranged one behind the other so that the magnetic pull of two or more
magnets is converted into one mechanical thrust. These magnets consist of soft
iron holders or casings C7 each being so constructed that a number of bobbins can
be encased therein, the cores of said bobbins being secured to said holder C7 so
that the cores will constitute one leg of the magnet, and the surrounding casing
the other leg or pole. These holders are arranged in sets so that the armature
stem C of one magnet will thrust the armature C of the preceding magnet
forward. The casings are arranged so that the armature stems of one set will
pass between the casing or through holes therein.
The magnet G is interposed in a shunt circuit between the battery Z and the
common contact Z1 of the key-board, which is momentarily closed after the
depression and release of any key on the key-board, thereby energizing said
armature and causing it to momentarily depress catch G and release latch d² and
allow the pin cylinder to rotate more or less. Diagrams Figures 23, 35 and 39
fully explain this part of the invention.
In Figure 35 the seven rows of keys are illustrated by the seven keys c', c², c³, c², c³, c
and & each of which may be taken as a key in the row it represents. The seven
magnets respectively represent the series of magnets which actuate the push-pins.
The common contacts Z is connected by wire Z2 to the battery Z and a magnet
is interposed in the circuit between the contact battery, and the wires Z3 leading
from the positive pole of the battery connects in multiple with the row of
magnets C that are connected to the first row of keys el in the key-board. One
terminal of each of the magnets f², ƒ³, ƒ ƒ³, f, f respectively, is connected
by independent wires to the series of magnets C belonging to the respective series

page_text: of keys c, c, c, c, c, c7 and their other terminals are connected to wire 4, as
shown. The armature 1 of magnet is connected by a shunt wire to the
positive pole of battery Z and rests on a spring which is compressed when the
magnet attracts the armature, and when the circuit is broken throws the armature =¹
upward sufficient to momentarily strike a contact point 23 which is connected by a
wire with one terminal of the magnet G, the other terminal being connected by
a wire Z with the negative pole of the battery Z. In Figure 35 it will be seen
that when key c' is depressed circuit is established through said key, its corre-
sponding magnet C, and magnet actuating the proper push-pin, while the
pin-cylinder is at rest, because a latch d², which controls the movement of said
pin-cylinder, is locked by catch G. The passage of a current through magnet,
however, attracts armature ¹ and tensions spring and the instant the current
through z is broken by the release of the key c', armature z¹ is thrown upward
momentarily contacting 23, (from which it immediately drops by gravity,) which
energizes magnet G causing catch G to disengage the latch d which was in
contact therewith, but allows it to fly back into position to receive the next latch
that may be depressed. The object of using the shunt current to release catch G
is to prevent the pin-cylinder moving while the push-pins are projecting the pins
therein. From the foregoing it is evident that the push-pins will operate before
the catch is released, though in an immeasurably short time.
In operating the machine the operator should begin on the first row of keys, or
keys controlling the first row of push-pins (that at the left hand side of the
cylinder if the said cylinder rotates to the left) and must depress them successively.
in the order of the letters which spell the words to be recorded; if, however, he
has a word of two or three letters, as "at" and "the" for instance, he may
simultaneously depress the "a," "t," "t," "h," "e" keys in the first, second,
fourth, fifth and sixth rows, respectively, whereupon the proper push-pins in the
first, second, fourth, fifth and sixth rows will be projected, projecting the corre-
sponding pins in the pin-cylinder, and the said pin-cylinder will rotate six notches,
as hereinafter described. When it is desired to space between words a row of
keys on the key-board is passed over, so that there will not be a push-pin, or
corresponding pin in the cylinder thrust forward. Practically word-keys may be
placed on the key-board so that upon the depression of a word-key push-pins, will
While I have described
be operated in proper order for the selection of the word.
a key-board having but seven rows of keys and seven rows of corresponding
magnets, and an escape with seven latches thereon it is evident that the number
of rows &c., can be increased as desired, without departing from the spirit of the
invention.
In
When a key c¹ in the first row is depressed the disc d makes a one-seventh of a
revolution only, and the pin-cylinder rotates but one notch; if a key c² in the
second row is depressed the pin-cylinder rotates two notches; the cylinder rotates.
three notches when a key in the third row is depressed, and so ou up to seven
notches when a key in the seventh row is depressed, before being arrested.
order to enable the cylinder to do this it is necessary that key c2 control magnet f³,
key controls, f, that key e controls magnets f, f, f, that key c controls
magnets f,, f, that key c controls magnets f ff, f, and that
key controls magnets f', f, f, f, ff. From this it will be seen that each
magnet controls every preceding magnet. Magnet is energized upon the
depression of any key in any row, consequently magnet G is energized
indirectly after the depression of any key. The keys control the magnets as
follows: Over each magnet, f, f,f and f' is an insulated spring s³, s, s
and s respectively, which form secondary armatures for the magnets, and when the
magnets are energized will be drawn into contact with insulated contact:
points to, t, to, and t respectively. Each spring s³, s, so, s and is connected
with a wire s which connects with wire 2 (see Figure 35).
Contact t is connected by a wire T3 with the return wire from inagnet f2;
contact by wire T to the return wire froin magnet-f³; contact to by a wire. T

page_text: with return wire from magnet f, contact te to a wire Te to return wire from
magnet f, and contact t' by wire T' to return wire from magnet f: Therefore
if contact be made between springs 3 and point (by energizing magnet f³) a
current is instantly shunted from wire Z3 through magnet f', wire T³, point t³,
springs and wires to the battery Z, the magnet f2 being also energized, thus the
latches d² underlying the magnets f, f, will be raised upon the depression of
any key c, and as magnet G is also energized upon the release of said key,
the disc d will rotate three-sevenths of a revolution, not stopping until the
latch d², which at the moment of starting lay under magnet strikes against
catch G, for the two latches which lay under the magnets f", 3, will be raised
thereby, and will remain in a raised position until pressed down by a slicker F', as
is apparent.
If any key c' were depressed the current would pass directly through magnet f
which would cause spring sto contact with point t', and a shunt current would
flow through magnet energizing it, and it in turn would shunt a current through
magnet, which would shunt a current through magnet f, which in turn would
shunt a current through magnet f³, and this magnet would shunt a current
through magnet f³, as described. Thus if only key c were depressed, the disc d
would make a complete revolution and a partial revolution of greater or less
extent for any key depressed, according to the row on the key-board in which it
is located.
The invention is not limited to the employment of shunt circuits whereby one
magnet is enabled to control another, as above described. In some instances the
employment of mechanically instead of electrically controlled escapements is
contemplated as herein described.
The operation of the machine is as follows:
The machine being ready for operation and all of its several parts being in their
normal position the operator depresses the keys in the different rows of the key-
board to spell the word desired. The keys depressed operate push-pin and the
latter project pins in the pin-cylinder B. The pin-cylinder which has a rotary
movement, rotates one step or notch for each push-pin operated, and when the said
pin-cylinder has made a half revolution the type-bar holder descends therein, and
the type-bars in the holder being freed from their locks drop down with the holder,
but every bar caught by a projected pin is upheld, so that a row of type is set
up in the holder corresponding to the letters of the keys that projected the
push-pins; then the locking plate is turned so as to lock the type-bars on the
holder in the position the pins have stopped them, and the holder raises bringing
the aligned row of type up to the opening as opposite the platten on the paper
carriage. The gear Q then engages rack R and as the holder rotates the
platten is drawn past the opening and the impressions are taken from the
aligned type upon the paper on the platten; gear Q then releases rack R6 and
the paper carriage returns to its starting point, while the bolder continues to
rotate until it comes into position to descend into the pin-cylinder. In the
mean time the operator has been working the keys and other rows of pins
have been projected in the other half of the pin cylinder which is moved
under the holder and the latter descends thereinto, its type-bars being first
released, so that the bars can be shifted as desired by the projected pins in
the cylinder that lie in the path of the type-bars on the descending holder.
The operator can continuously operate the keys and project pins in the pin-
cylinder, as the said pin-cylinder is of such size that the type-bar holder when
therein does not interfere with the setting up or projecting of other pins.
After the pins bave aligned a set of type-bars they are returned to their
normal position in the pin-cylinder before they are again passed before the push
pins.
The advantages of this invention will be obvious to those skilled in the art, and
also its adaptability to various purposes besides type-writing, such as matrix
making machines, embossing, and for various uses in the printing arts.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondents, I declare that what I claim is
1. A linotype machine constructed and operated substantially as described, and
shown in Figure 1, of the drawings.
2. In a machine of the character described the stop-pin operating mechanism,
substantially as described, and shown in Figures 1, 9, and 23.
3. In a machine of the character described the electrically controlled escapement.
mechanism for the pin-cylinder, shown in Figures 9 to 18 inclusive.
4. In a machine of the character described mechanism for raising and lowering
and rotating the type-bar holder, substantially as described and shown in
Figures 1, 2, 4, 19, 20, 21, 22, 224, 34, 36, 37, 38.
5. In an escapement mechanism such as referred to in Claim 3, the electric
magnetic shunt circuits, such as illustrated in Figures 23, 35 and 39.
Dated this 22nd day of June 1896.
WM. P. THOMPSON & Co.,
Agents.