Method of Balancing Relays. Page: 4 of 4
[1], 3 p. : ill. ; 23 cm.View a full description of this patent.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
745,687
ries with the main-line battery 89 and a sec-
ondary relay-coil 111 through the main relay
to the contact-brushes cooperating with the
current-changer 4. This test-alarm is pro-
5 vided with an independent battery 112 and
bell 113 in circuit with a contact-piece 82, co-
operating with the armature 82"1 of the relay-
magnet 111. The object of this is a test to
ascertain whether the battery-cells are in
1o working order, as by pressing the button 97
the circuit through the relay 111 is opened,
permitting the armature'82 to make contact
through the battery 112 and bell 113. In the
present arrangement of circuits.it will be ob-
15 served that the circuit is split, and the bat-
tery could continue to weaken until it finally
became exhausted without giving the alarm,
and up to this time the invention would con-
tinue to operate. By the use of the push-
2o button the battery, as well as the working of
the system, can always be tested from the pro-
tected structure without the necessity of
breaking a line elsewhere, and thus causing
an alarm to be given. The test-button simply
25 opens the line 110 from the main battery 89.
The substations shown in Fig. 1 are illus-
trated with and without the fuses or fire-
alarms C. If one or more of these fuses are
introduced into a fire-protection circuit and
3o become melted, the circuit is opened, which
throws the armature91lof the main relay 116,
Fig. 1, making contact with the line 99. This
also opens contact to substations by breaking
contacts of spring 106,thereby releasing arma-
35 ture of relay 83 at substation, which closes
local battery 103 through bell 107. Substan-
tially the same effect would necessarily take
place should the substation be broken or
tampered with. The armature for the sub-
40 station apparatus is indicated at 105 and
adapted to contact with the point 101 by
means of the spring 106 under the conditions
just mentioned.
Within both the protected structure and
45 the protected cabinet containing the appara-
tus suitable resistances, as indicated at M N
0, Fig. 2, and P Q R, Fig. 1, are added in se-
ries with each other, but so arranged that dif-
ferent amounts are at each end of each line,
50 whereby each line shall always have the same
total resistance as another line. For in-
stance, assuming that the resistances just
mentioned are extra resistance-coils added to
the line-wires and taking line 55, we may as-
55 sume that the resistance of the coil P is sev-
enty-five ohms, while that of M in circuit
therewith at the protected structure has a re-
sistance of twenty-five ohms. Likewise tak-
ing the line 55b and assuming the resistance
6o Q to have twenty-five ohms and the next line
in the same manner, using any arbitrary di-
vision of the various resistances which may
be found proper. It is of course understood
that the resistances P Q R are located in aproper protected position at a police-station 65
or any other suitable point.
It will be obvious that the details of con-
struction and configuration of the relay here-
in described may be changed and the relay
applied in any desired relation to other elec- 70
trick circuits not herein illustrated without
departing from the spirit of the invention as
defined by the appended claims.
Having described our invention and set
forth its merits, what we claim, and desire to 75
secure by Letters Patent, is-
1. The method of balancing a relay for pro-
tecting an electric circuit, consisting in sus-
pending a polarized armature in the field of
mutually-repellent magnets, one of which is 8o
wound with divisions of said circuit extend-
ing in opposite directions upon the core
thereof.
2. The method of balancing a relay for pro-
tecting an electric circuit which consists in 85
dividing a circuit from a battery and connect-
ing said divisions in reverse directions upon
a polarized core and relative to a polarized
armature to form the coil of a permanent
magnet having a polarized core mutually re- 90
pellent to the pole of said armature next to
said core, presenting a resistance to one di-
vision of said circuit and a permanent mag-
net having a repellent pole disposed at the
opposite side of the armature from said cir- 95
cuit-connected magnet.
3. The method of balancing a relay for pro-
tecting an electric circuit which consists in
dividing a circuit from a battery and connect-
ing said divisions in reverse directions upon rno
a polarized core and relative to a polarized
armature to form the coil of a permanent
magnet having a polarized core mutually re-
pellent to the pole of said armature next to
said core, presenting a resistance to one di- 105
vision of said circuit, shifting the other di-
vision of said circuit from one set of lines to
another and alternating its polarity in the
act of shifting and a permanent magnet hav-
ing a repellent pole disposed at the opposite iio
side of the armature from said circuit-con-
nected magnet.
4. The method of controlling a balanced re-
lay which consists in dividing a circuit and
passing the divisions thereof in opposite di- T15
rectios upon a polarized core to form a mag-
net, and disposing separate sets of said di-
vided-current magnets with their mutually-
repellent poles at opposite sides of the repel-
lent pole of a polarized armature. 120
In testimony whereof we affix our signa-
tures in presence of two witnesses.
HENRY M. SUTTON.
WALTER L. STEELE.
MICHAEL COERVER.
Witnesses:
W. H. BURKHALTER,
N. L. MOSELEY.3
Search Inside
This patent can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Patent.
Sutton, Henry M.; Steele, Walter L. & Coerver, Michael. Method of Balancing Relays., patent, December 1, 1903; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth508290/m1/4/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.