Rat Trap Page: 4 of 5
[2], 3 p. : ill. ; 23 cm.View a full description of this patent.
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1,175,797
of the openings 14 into the compartment 12.
At the moment the weight of the rodent is
received upon the platform 21 said platform.
will be depressed, thus causing the platform
5 to engage the contact 28 and also causing
the contact 27 to engage the contact 29.
This closes an electrical circuit through the
wire a to the platform 21, through the wire
b to the electro-magnet 17 and through the
10 wire d to.the, engaging contacts 29 and 27
and thencethrough the wire e back to the
battery, the electro-magnet being thus ener-
gized to result in. the operation of the arms
16, thereby swinging the closures 15 into
15 closed position to prevent the .escape of the
rodent. The rodent, naturally looking for
an avenue of escape, passes through the
opening 23 in the partition 11, and in so do-
ing, .steps upon the platform 25 in the com-
20 partment 13. At the moment the rodent
leaves the first compartment it will be ap-
parent that the springs engaging the plat-
form 21 will return the same to initial posi-
tion,so that the .platform will engage with
25 the contact 30 and 'be out of- engagement
with the contact 28, the contact 27 being thus
disengaged from the contact 29. Depression
of the platform 25 causes the same to engage
with the contact 31 and thus it will be seen
So that the electro-magnet will be energized in
the opposite direction, thereby causing the
same to release the arms 16 and permit the
closures ,15 to swing into an open position
to receive the next victim,- the current in the
35 latter instance being adapted to pass from
the battery 20 through. the wire a and plat-
form 21 to the contact 30 and thence through
the .wire c to the electro-magnet, through
which it passes to operate the': same, causing
40 the release of the compartment. the current
then passing -through the wire' b and the
wire f to contact. 30 which, engaged by the.
platform 25, results in current passing
through the platform 25 and through the
45 wire g back to the battery,. thus completing
the circuit.
From the foregoing description it will
therefore. be seen that with a trap of the
character described the entire operation will
50 be electrically controlled in, that the first
compartment of the trap will be open. to re-
ceive the first victim who, upon entering the
compartment,.will, due to his weight, result
in the electrical operation of the.electro-
55 magnet, causing the closures to _ the first
compartment to assume their closed posi-
tions. The rodent now passing into the sec-
ond. compartment and stepping upon the
platform 25 again causes the electro-magnet
60 to. operate, resulting in the release of the
closures from their .closed position so that
they can swing into open position to receive
the next victim.-
From. the. foregoing description it will be
65 seen that the trap constructed as mentionedwill -present a neat and effective appearance
and will effectually perform the result for
which it is intended.
- leavingg thus described my invention, I
claim: 70
.1. A trap comprising a casing, a partition
formed to divide the casing into communi-
cating compartments, doors controlling en-
trance passages into one of the compart-
ments, a platform. in each. of.said compart- 75
ients, an electro-magnet, a source of elec-
trical energy, and a circuit connection be-
tween said source of energy, magnet and
one of said platforms through. which the
current flows in a given direction upon de- 80
pression of . the platform in said circuit, a
circuit connection between said source of
energy, magnet and other platform through
which the current flows in an. opposite direc- -
tion around the magnet with respect to the 85
first mentioned circuit when the -latter men-
tioned platform is depressed, and means co-
operating with said magnet to control -the
opening and closing movements of said
doors.90
2. A trap comprising a casing, a partition
formed to divide the casing into commumn-
cating compartments,. doors controlling en-
trance passages into one -of the compart-
ments, a platform in each of said compart- 95
ments, an electro-magnet, a source of elec-
trical energy, and a circuit connection be-
tween said source of energy, magnet-and one
of said platforms through which the current
flows in a given- direction upon depression 100
of said platform, a circuit connection be-
tween -said source of energy, magnet- and
other platform. through which the current
flows in an opposite direction around- the
magnet.-with .respect- to the first mentioned 105
circuit when the latter mentioned platform
is depressed, means coperating with said
magnet to control the opening and closing
movements of said doors, and means for
normally holding said platforms out of elec- 110
trical communication with their respective
circuits.
3. A trap comprising a casing, a partition
formed to divide the casing into communi-
cating compartments, doors controlling en- 11
trance passages into one of the -compart-
ments, a-;platform in each of- said compart-
ments, a source of electrical energy, an elec-
tro-mrgnet, and a circuit connection be-
tween said source of energy, magnet and 120
one of . said platforms through which the
current flows in a given direction upon -de-
pression of said platform, a circuit connec-
tion between said source of energy, magnet -
and other platform.through which the cur- 125
rent flows in an opposite direction around
the magnet with respect to the above men-
tioned circuit upon depression of the latter
mentioned platform, 'and arms protecting
from said doors to coperate with said mag- E2
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Reference the current page of this Patent.
Newell, Greene E. Rat Trap, patent, Date Unknown; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth857866/m1/4/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.