No. 702,454. Patented June 7, 1902.

W. M. MNER.
EECTRC SYNCHRONO US APPARATUS.
(Application filed July 25, 1901.)
(No Mode.)

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 UNITED STATES PATENT OFFICE.
WILLAR D M. MIN ER, OF PLAIN FIELD, NEW J ER SEY.
ELECT R C SYNC - R O NO U S A PPARATUS.

SPECIFICATION forming part of Letters Patent No. 702,454, dated June 17, 1902.
Application filod July 25, 1901, Serial No. 69,644 (No model.

To all, Luhon, it inval CO7 cer'70: vibrates, it acts to alternately shunt the cur
Be it known that I, WILLARD M. MINER, a rent of the supply-wires 18 from the magnets
citizen of the United States, and a resident of 4 in turn, so that they will be energized al 55
Plainfield, in the county of Union and State ternately and cause the tongue 9, which car
of New Jersey, have invented certain new and ries armatures for said magnets, to vibrate
useful Improvements in Electric Synchronous in synchronism with the tongue 13, all as de
Apparatus, of which the following is a speci scribed in my copending application for pat
fication. ent. Incandescent lamps 16 may be placed
My invention relates to synchronizing ap in shunt or branches around the contacts of
O paratus for telegraphic, telephonic, and other
the relay 13, as shown, to operate as Spark
purposes, and more particularly to apparatus preventing devices in the manner described
designed to operate in connection with an in said application.
electric motor for keeping said motor run The fields of the motor which are to be run
ning in synchronism with a distant appliance. in synchronism with the distant appliance
IS The object of my invention is to simplify are indicated by the numeral 7, while 6 indi
the arrangements of apparatus heretofore em cates the armature of said motor. The fields
ployed for this purpose, to diminish the num 7 are maintained by current derived from the
ber of separate generators which it is neces power-circuit 18 and are in a branch in mul
sary to employ, to permit the use of motors tiple with that which supplies the vibrator
having a large torque and operated by heavy magnets 4. Suitable lamps 17 may be placed,
currents, and to secure other advantages. as shown, to cut down the Voltage of the cur
To these ends my invention consists in the rent supplied from wires 18 and render the
novel combinations of apparatus hereinafter same suitable for operating magnets 4 and
set forth, and then specified in the claims. for energizing the fields of the motor.
25 In carrying out my invention the vibrator The almature of the electric motor herein
which I employ and which is made to follow shown is wound after the manner described
the movements of the relay employed in the in the patent No. 428,222 and illustrated in
combination is kept in operation by an ar Fig. 4 of said patent, and the circuit-wires So
rangement of devices such as is described in which supply the reversed currents to said
30 an application for patent filed by me of even armature are indicated by the numeral 5.
date here with, Serial No. 69,643. The reversed currents required for syn
Referring to the accompanying drawing, chronism are produced by a double battery
wherein. I have shown diagrammatically a or generator 10. Current from the two por
general arrangement of apparatus embody tions L0 is caused to flow alternately over the
35 ing my invention, 3 indicates a main line connection 5 in opposite directions by the ac
which includes the coils 2 of a polarized re tion of the vibrator-tongue 9, which is a split
lay whose tongue 13 serves to bring the mag tongue, as shown, the two halves of which
nets 44 of a vibrator alternately into action, control, respectively, the connections of the 90
so as to cause a vibrator-tongue 9 to vibrate two batteries 10 with the circuit 5, placed as
40 in synchronism with the tongue 13 and with a shunt or branch to the two portions of the
the reversals of current upon the controlling vibrator by making contact, respectively,
line 3. with contact-stops connected also to said bat
18 indicates electric supply-wires leading teries in the mannershown. When the tongue 95
from any suitable source of electric power, 9 is against one contact-as, for instance, the
and the magnets 4 are included in a circuit left-hand contact-circuit may be readily
from one wire to the other, as may be readily traced from the lower of the two batteries or
traced in the diagram. From the junction generators through connection 5 in the direc
of the two coils 4 a wire or connection is tion of the arrow 30 and back to the opposite OC
taken to the vibrating tongue 13, and the two pole of said battery through the tongue 9 and
opposite contact-stops of said tongue are also contact-stop. When the tongue 9 is against
connected to the outside terminals of the the opposite contact, current passes from
magnet-circuit, as shown. When the tonguo the upper of the two batteries 10 through
 2 702,454.

connection 5 in the direction of the arrow tromagnetic vibrator having its operating 55
40. If the current thus flowing is a syn magnets in circuits leading from a suitable
chronizing as well as a power current for electric-power circuit through the contacts of
the motor, the energy supplied by the batte the relay, an armature-winding for the mo
ries or generators 10 must be considerable, tor, two local batteries and connections from
and the sparking at the contacts of the cir the same to the contacts of the vibrator
cuit-changing vibrator will be so heavy as to adapted as described to cause a leversal of
produce liability to sticking. I obviate this current-flow in the al'mature-winding by the
difficulty and reduce the voltage of the bat action of said batteries alternately, and a
O telries by giving to them the sole function separate armature-winding supplied from the
of control and by providing the armature electric-power circuit in multiple with the
with an additional winding, which operates operating-magnets of the vibrator.
as a starting and a power winding combined 2. In a synchronizing apparatus for an elec
and which may be supplied from the power tric motor, the combination substantially as
circuit 18 or from any other suitable source described of a main-line relay, an electro
and in shunt with the operating-magnets of the magnetic vibrator, a power-circuit supplying
Vibrator. The commutator-brushes and com energy to the vibrator magnets through the
mutator-cylinder of such additional winding contacts of the relay, a synchronizing-circuit
are indicated by the numerals 25 and 35, re on the motor-armature, a local battery or gen
spectively. The windings of the armature erator from which currents are made to flow
connected to the commutator 35 may be any alternately in opposite directions through the 75
Suitable Windings adapted to operate with said synchronizing-winding by the action of
continuous current and to produce a continu the vibrator, an independentarmature-circuit
Ous torque of the armature. As shown, this for the motor, a field-winding therefor and con
25 Continuous current or starting - winding is nections for supplying said independent arma
Supplied in a branch in multiple with that ture and field with current from the power So
which supplies the fields and the operating wire in multiple with the operating-magnets
magnetS 4 of the vibrator. of the vibrator.
It is obvious that instead of using a double 3. In a synchronizing apparatus for an elec
Wound armature, one winding for synchron tric motor, the combination substantially as
izing and the other for power, a double arma described of a main-line relay in the Syn
ture might be employed. If desired, a suit chronizing-circuit, a vibrator having a num
able switch may be employed in the connec ber of operating-magnets brought into action
tion for the power winding or armature, alternately through the vibration of the re
35 whose commutator and brushes are indicated lay, a synchronizing-circuit on the armature
by the numerals 25 and 35. Such a switch is of the motor, two or more local generators or 90
indicated at 45. Suitable liquid and plate sections of generator connected alternately
condensers 11 and 12 may be placed in shunts into the circuit, of the armature over the con
around the contacts of the vibrator. tacts of the vibrator to cause reversals of cur
40 The connection of the circuit 5 as a branch rent-flow thereon, an independent power
or shunt around the two parts of the vibrator winding on the armature, an electric-power 95
to secure reversals of current through a sin circuit supplying current continuously in the
gle armature-winding by the action of the same direction to the commutator of said
Vibrator, as herein described, is the subject power-winding, and a field-magnet for the
45 of claims in my application for patent filed motor supplied in multiple with said arma
of even date here with, Serial No. 69,642, and ture power-winding from the power-circuit. IOC
is only shown for the purpose of illustrating Signed at New York, in the county of New
one of the arrangements of switching and cir York and State of New York, this 26th day
cuit-changing appliances to which my present of June, A. D. 1901.
invention is applicable. WILLARD MI. MINER.
What I claim as my invention is
l. The combination substantially as de Witnesses:
scribed with a synchronous motor, of a main DELBERT II. DECKER,
line relay in a synchronizing-circuit, an elec ETHIEL L. LAWLER.