Year: 1891

page_text: Date of Application, 18th Aug., 1891-Accepted, 26th Sept., 1891
Figure 3 is a detan.
Referring by letter to the drawing,
A designates a table or platform having a compound movement, that is, the table
or platform has a to and fro movement and a lateral movement imparted to it.
The table or platform A is mounted and is moved laterally upon a carriage A¹
which is movable on ways a, supported on posts a¹ extending upward from a bed
plate A².
As a means to impart a to and fro movement of the table or platform A,
I employ an electro-motor A³, which may receive its current from any desired
source.
The electro-motor A³ has a gear wheel B on its shaft, meshing with a gear
wheel B' having its shaft B' mounted on standards erected upon the bed
plate A2.
A pitman B2 extends from the wheel B¹ and is engaged with the carriage A¹.
Obviously by this construction the carriage A' will be moved back and forth on
the ways a and carry the table A.
The end of the shaft B³ opposite to the wheel B¹ may have a balance wheel B
on it connected by a pitman B5 with the carriage A¹. To maintain a uniform
speed, the electro-motor is provided with a governor B.
It is to be understood that I do not confine myself to an electro-motor, as a steam
or any other motive power may be employed.
A lateral movement is given to the table A by means of a screw C rotating in
bearings and carried by the carriage A¹ and engaging in tapped holes in the
framing of the table A. On the outer end of the screw C is mounted an escape-
ment or similar wheel C' with which an escapement lever C engages alternately on
The lever C is fulcrumed to
opposite sides to rotate the screw one step at a time.
a bracket extending downward from the carriage A2 and has a pin c extending from
its lower portion into the path of tappets c¹ erected upon the bed plate. As the
table is moved to and fro the lever C² by coming in contact with the tappets c¹ will
operate to rotate the screw to impart a lateral movement to the table.
To hold one of the ends of the lever C2 in contact with the wheel C¹ until the
lever is operated by contacting with the opposite tappet I employ a brake here
shown as a friction wheel with which the lower end of the lever engages. This
wheel is supported by a spring arm e extending from a depending portion of the
carriage A¹.
D is a supporting arm for a receiving pen D¹ and a transmitting point or circuit-
closer D². The arm D is longitudinally adjustable, over the table A, on a bar D³,
which is secured to posts extending upwards from the bed plate A². The posts are
preferably insulated from the bed plate by insulating material b².

page_text: As a means for adjusting the arm D on the bar D³ and securing it rigidly as
adjusted I have shown the bar D³ as longitudinally slotted and a set screw is
extended through. the slot into a tapped hole in the arm.
In Figure 1, I show an instrument D', supposed to be at a distant point or station
and acting as a receiving instrument.
It is to be understood that the instruments are alike in construction and each may
serve as a transmitter or a receiver, by changing the electrical circuit as hereinafter
described and bringing the pen or the transmitting point into play.
The receiving pen D¹ is tubular so that ink may be placed therein and find an
exit through a small perforation in the point.
The pen D' is movable or reciprocates vertically in a socket in the end of the
arm D and is pivotally secured to an armature E which co-acts with an electro-
magnet El mounted on the arm D.
The armature E is fulcrumed to a post d extending from the arm D, and a
spring e secured at one end to the armature and at the other end to the arm D serves
to return the armature and pen to an upward position when the electro-magnet is
disengaged.
The transmitting point or circuit closer D2 consists of any suitable metal and is
moved vertically in a socket in the end of the arm D adjacent to the pen D'.
The instrument D² preferably has a hard sharp point and the socket is provided
with a bushing of insulating material.
The circuit closer D2 may be held in yielding contact with the paper on the
table A by means of a spring & surrounding the circuit closer between a pin or
shoulder thereon and the lower portion of the arm D as shown.
When the
instrument D' is not in use it may be held out of contact with the paper by means
of a thumb screw d³ engaging in a tapped hole in the wall of the socket and
impinging against the instrument.
I will now describe the electrical connections :
FF designates batteries each having a ground wire G. From the battery Fa
wire f extends to the electro-magnet E' and a wire f¹ also extends from the battery F
to the transmitting point or circuit closer D².
'
A wire f2 extends from the electro-magnet El to a switch point f³. A wire f*
extends from the metal table A to a switch point g, and g' is a line wire extending
to the distant receiver, and as here shown, the circuit is closed between the
wires by the switch g².
Referring to Figure 2, a message will be seen in place upon the table A. This
message is written on paper with metallic ink and the letters and words of each line
are connected to a side line which contacts with the tablet A or with the wire 4.
In operation the transmitting point or circuit closer will be placed in contact with
the paper and as the table is reciprocated the point will contact with the metallic
ink and close the electrical circuit to operate the receiving pen on the device D.
The current being from the battery F to the point D³, thence through the
message and table to wire f, through switch g2, line wire g, switch g* wire g³,
electro-magnet F², wire 96, battery F and back to battery F, through the ground.
Of course by changing the switches g² 9¹ the operation of the machines may be
reversed.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is:
1. The combination of an electric circuit, a movable table upon which a message
is supported and a transmitting point co-acting with the message to close the
circuit, substantially as specified.
2. The combination with the movable table of the transmitting point and the
receiving pen mounted above the said table, substantially as specified.
3. The combination with the table of the pen supporting arm adjustably mounted
over said table, substantially as specified.

page_text: 4. In combination with an electric circuit of a pen and a table movable to and fro
beneath said pen, substantially as specified.
5. In combination with an electric circuit of a pen and a table having a to and fro
and a lateral movement beneath the pen, substantially as specified.
6. In combination with the pen, of a table, a motor for imparting a to and fro
movement to said table and a screw for imparting a lateral movement to said table,
substantially as specified.
7. In a device of the character described a transmitting point or receiving pen,
a table beneath the same, a carriage upon which the table is mounted and with
which it is movable, ways upon which the carriage is movable and a motor for
imparting movement to the carriage, substantially as specified.
8. In a device of the character described, the combination of the the table,
pen,
a carriage upon which the table is movable laterally, a way upon which the carriage
is movable to carry the table to and fro, a motor for causing such movement, and a
screw operated at the ends of the to and fro motion to impart a lateral movement
to the table, substantially as specified.
9. The combination with the electric circuits of the receiving pen mounted on an
armature, an electro-magnet co-acting with said armature and a table movable
beneath the pen substantially as specified.
Dated this 18th day of August 1891.
DANIEL H. SMITH, M.D.