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Патент USA US2120812

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June 14, 1938»
E. s. RBNALDY ET AL.
2,120,812
ANIMAL TRAP
Filed June 26, 1937
INVENTORS
£0 WARD 5. A’m/AL DYA/VD ApA/vl 5cm 555/?
Bald
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ATTORNEY.
2,120,812
Patented June 14, 1938
UNITED STATES
PATENT OFFICE
2,120,812
ANIMAL TRAP
Edward S. Rinaldy and Adam ‘Schaefer,
Chester, N. J.
Application June 26, 1937, Serial No. 150,452
10 Claims.
The invention relates to traps for rodents and
the like, being adapted particularly for catching
and killing rats.
It has for an object the provision-of a trap
5 which may be baited after the trap has been
sprung as well 'as in a non-set or retracted
position, eliminating thereby the danger of in
advertently springing the trap with possible in
10
jury to the person setting the same.
A further object of the invention resides in
the provision of a construction whereby the re
lease mechanism is of the hair-trigger type, only
a very slight force being required to spring the
trap, increasing rapidly, however, to exert the
required holding force.
A still further object of the invention is to
provide a trap wherein the animal must follow
a predetermined course leading it eventually to
a position for reaching the bait wherein hold
20 ing elements will be caused to grip and kill the
animal when the trap is sprung.
The invention has for another object a trap
of simple and inexpensive construction and which
is effective in operation and in which the setting
mechanism is readily manipulated.
In carrying out the invention, a suitable base
or support is provided, which may be, for ex
ample, in the nature of an inverted open box
having an opening or openings in its side walls
30 for entrance of the animal and a single opening
in the top through which the bait is accessible.
The entire trapping mechanism is carried on this
top or support and comprises essentially a ?xed
jaw member bordering a portion of the top open
ing and a lever fulcrumed to the top for move
ment in the plane of said ?xed jaw member and
across the said opening, the said lever having
also a jaw portion adapted for juxtaposition to
the ?xed jaw member.
In addition, said lever at its jaw end is pro
4.0
vided with an extension continuing about and be
yond the said opening and terminating in a de
tent. The latter is designed to engage a tiltable
bait-holder or bell-crank trigger element, one
arm of which is positioned above said opening
to receive the bait. A slidable member is pro
vided over said lever for movement along a side
edge thereof between the lever fulcrum and the
said top opening, and is spring-drawn to pull
50 the said lever across the opening. When sub
stantially in line with said fulcrum, or in a dead
center position, the member is drawn with a
minimum or practically no force and consequent
55
ly exerts only the slightest pull on the lever which
is designed with respect to the slide member
(Cl. 43—85)
such that the pull thereon is not applicable fully
until the trap is sprung when it increases rapidly
and materially.
The nature of the invention, however, will best
be understood when described in connection with
the accompanying drawing, in which:
Fig. 1 is a plan view of the novel trap with
a portion of the housing element broken away
to disclose the gripping mechanism.
Fig. 2 is a side elevation thereof with the 10
housing shown in vertical section and part eleva~
tion.
Referring to the drawing, Ill designates a
suitable base or support member, indicated in the
present embodiment as an inverted box-like 15
structure provided with an opening or openings
II in a side wall and through which the animal
may enter the trap. There is provided also a
circular opening i2 in the top, these openings be
ing designed to predetermine the course of the
animal so that it will be required to enter the
opening I2 to reach the bait. This will be held
on a tiltable trigger element l4 pivoted at l3
to a bracket secured to the support [0. This
element has its one arm extending over the open
25
ing l2 to receive the bait, while its other arm l5
acts as a stop for a detent hereinafter set forth.
The arrangement is such that as the arm I4 is
disturbed by an animal, for example, raised, the
detent stop l5 will be moved to spring the trap,
said trigger element being normally under the
influence of a spring [6 operating to move the
arm I4 in a direction opposed to that which
would spring the trap, that is to say, downwardly
toward the base 10.
The gripping mechanism of the trap comprises
a ?xed jaw member 20 secured to the base with
a preferably toothed marginal portion 2! border
ing a portion of
lever fulcrumed
arm 23 provided
ably toothed as
the opening I2, and a movable
at 22 to the base having one
with a jaw portion, also prefer
at 24, designed to be brought
into juxtaposition to the toothed portion 2| of’
the ?xed jaw member. The arm 23 is designed
to move in the plane of said ?xed jaw member 45
across the opening for gripping an animal when
the trap has sprung and under the action of a
spring 25 secured at one end to the base and
drawing normally the said arm 23 toward the jaw
member 20. The other end of the spring con
nects with a member 26 slidable along one side
edge 21 of the arm 23 between said fulcrum 22
and the opening l2 to vary the effective leverage
of said arm.
The gradient of the edge 21 is made such that 55
2
2,120,812
as the member 26 progresses from the fulcrum
toward the opening, the application of the force
of spring 25 will be rapidly accelerated so that
ample force for gripping the animal will be avail
able and its application almost instantaneous.
end terminating in a detent, a trigger element
pivotally carried by the support, one arm of
which element is adapted for engagement with
said detent and the other to bepositioned above
the said opening and adapted to retain the bait,
To effect a smooth action in this respect, it is
a member slidable along the lever between said
preferred to provide the member 26 with a roller
10
15
20
K1 in
30
opening and the lever fulcrum and substantially
28 bearing against the edge 21, the said member to the latter, resilient means drawing said lever
26 to this end embracing at its outer end the toward the ?xed jaw through said slidable mem
said lever arm 23 and carrying between the ' ber, and a housing hinged to said support for 10
turned-over portions said roller, as shown.
enclosing the trigger element and opening.
The said arm 23, furthermore, is provided with
3. An animal trap, comprising a box-like sup
an extension at the jaw end, the same being ar
port having an entrance opening in a wall there
cuate to extend about and beyond the opening of and having an opening in its top through
l2 and carrying at its outer and free end a de
which the head of the animal must pass to reach 15
tent 30 designed to contact the stop I5 when the bait, the opening over a portion being bor
the trap is set and as indicated in the full-line dered by a ?xed jaw member, a lever fulcrumed
position, Fig. 1 of the drawing. In this posi
to the support for movement in the plane of said
tion, moreover, it will be noted that roller 28 is ?xed jaw member across said opening and having
at the innermost portion of the arm 23 substan
a jaw portion for juxtaposition to the ?xed jaw 20
tially in line with the fulcrum 22 so that very member, said lever having also an extension at
little force is exerted by the spring 25 to move the jawend terminating in a detent, a trigger
said lever arm 23. Consequently, only a very element pivotally carried by the support, one
slight force will be required to trip the arm l4 arm of which element is adapted for engagement
and spring the trap. When this occurs, the arm with said detent and the other to be positioned 25
will take the position indicated in the dotted above the said opening and adapted to retain the
lines, bringing the two jaw members together bait, a member slidable along the lever between
about an animal to securely hold and kill the said opening and the lever fulcrum and substan
same. ‘
tially to the latter, and resilient means drawing
In releasing the trap as for resetting a knob said lever toward the ?xed jaw through said 30
29 is provided on the lever; and it will be ap
preciated thatthe force required diminishes as
the lever arm is brought outwardly. A stop 3!, in
the nature of a pin extending upwardly from the
.base l9, may be provided to limit its outward
swing. By providing a shoulder 32 on the oppo
site end of the lever, travel of roller 28 will also
be limited to ?x the minimum pull upon the arm
23 of said lever.
To prevent access to the bait from the top of
the trap, a suitable housing or cover member 35
is provided, the same being hinged as at 36 to an
upstanding bracket 31 secured to the base, said
cover extending over the opening l2 and trigger
mechanism.
It is provided, furthermore, with
a spring-catch 38 designed to ?t a notch or keeper
39 in the side of the support member II].
We claim:
1. An animal trap, comprising a support having
50 an opening through which the head of the animal
must pass to reach the bait, the opening over a
I
60
65
70
75
slidable member.
'
4. An animal trap, comprising a box-like sup
port having an entrance opening in a wall thereof
and having an opening in its top through which
the head of the animal must pass to reach the 35
bait, the opening over a portion being bordered
by a ?xed jaw member, a lever fulcrumed to the
support for movement in the plane of said ?xed
jaw member across said opening and having a
jaw portion for juxtaposition to the ?xedrrjaw 40
member, said lever having also an extension at
the jaw end terminating in a detent, a trigger
element pivotally carried by the support, one
arm of which element is adapted for. engagement
with said detent and the other to be positioned 45
above the said opening and adapted to retain
the bait, a member slidable along the lever be
tween said opening and the lever fulcrum and
substantially to the latter, and a spring secured
at one end to the top of the box-like structure
and at its other end to the slide member and
portion being bordered by a ?xed jaw member, between the lever fulcrum and the said opening.
a lever fulcrumed to the support for movement
5. An animal trap, comprising a box-like sup
in the plane of said ?xed jaw member across said port having an entrance opening in a wall thereof
opening and having a jaw portion for juxtaposi
and having an opening in its top through which
tion to the ?xed jaw member, said lever having the head of the animal must pass to reach the
also an extension at the jaw end terminating bait, the opening over a portion being bordered
in a detent, a trigger element pivotally carried by a ?xed jaw member, a lever fulcrumed to the
by the support, one arm of which element is ' support for movement in the plane of said ?xed
adapted for engagement with said detent and jaw member across said opening and having a
the other to be positioned above the said‘ opening jaw portion for juxtaposition to the ?xed jaw
and adapted to retain the bait, a member slid
member, said lever having also an extension at
able along the lever between said opening and the jaw end terminating in a detent, a trigger
the lever fulcrum and substantially to the latter, element pivotally carried by the support, one arm
vand resilient means drawing said lever toward of which element is adapted for engagement with
the ?xed jaw through said slidable member.
said detent and the other to be positioned above
2. An animal trap, comprising a support hav
the said opening and adapted to retain the bait,
ing an opening through which the head of the a member slidable along the lever between said
animal must pass to reach the bait, the opening opening and the lever fulcrum and substantially
over a portion being bordered by a ?xed jaw to the latter, resilient means drawing said lever
member, a lever fulcrumed to the support for toward the ?xed jaw through said slidable mem
movement in the plane of said ?xed jaw mem
her, and a stop extending upwardly from the said
ber across said opening and having a jaw por- ' top to engage the lever to limit its outward move
tion for juxtaposition to the ?xed jaw member, ment.
'
said lever having also an extension‘at the jaw
6. An animal trap, comprising a support hav
50
55
60
65
75
3
2,120,312
ing an opening through which the head of the
animal must pass to reach the bait, the opening
over a portion being bordered by a ?xed jaw
member, a lever fulcrumed to the support for
movement in the plane of said ?xed jaw mem
ber across said opening and having a jaw por
tion for juxtaposition to the ?xed jaw member,
said lever also having an arcuate extension ex~
tending beyond and about the said opening and
10 terminating in a detent, a trigger element piv~
otally carried by the support, one arm of which
element is adapted for engagement with said
detent and the other to be positioned above the
said opening and adapted to retain the bait,
15 a member slidable along the lever between said
opening and the lever fulcrum and substantially
to the latter, and resilient means drawing said
lever toward the ?xed jaw through said slidable
member.
I
‘7. An animal trap, comprising a support hav
ing an opening through which the head of the
animal must pass to reach the bait, the opening
over a portion being bordered by a ?xed jaw
member, a lever fulcrumed to the support for
25 movement in the plane of said ?xed jaw mem
ber across said opening and having a jaw por
tion for juxtaposition to the ?xed jaw‘ member,
said lever having also an extension at the jaw
end terminating in a detent, a trigger element
30 pivotally carried by the support, one arm of
20
which element is adapted ‘for engagement with
said detent and the other to be positioned above
the said opening and adapted to retain the bait,
a member slidable along the lever between said
35 opening and the lever fulcrum and substantially
to the latter, resilient means drawing said lever
toward the ?xed jaw through said slidable mem
ber, and a member carried by the lever for man
ual operation of the same to retract the lever
40
in setting the trap.
8. An animal trap, comprising a support hav
ing an opening through which the head of the
animal must pass to reach the bait, the opening
over a portion being bordered by a ?xed jaw
member, a lever fulcrumed to the support for
45 movement in the plane of said ?xed jaw member
across said opening and having a jaw portion
for juxtaposition to the ?xed jaw member, said
lever having also an extension at the jaw end
terminating in a detent, a trigger element piv
otally carried by the support, one arm of which
element is adapted for engagement with said de
tent and the other to be positioned above the said
opening and adapted to retain the bait, a slide
member having an end embracing the said lever
and a roller carried by said end between its
turned-over portion ‘for engagement with the
side edge of the lever, and resilient means at
tached to the other end of the slide member
and to the support between said opening therein
and the fulcrum of the said lever.
9. An animal trap, comprising a support hav
ing an opening through which the head of the
animal must pass to reach the bait, the open 10
ing over a portion being bordered by a ?xed jaw
member, a lever fuicrumed to the support for
movement in the plane of said ?xed jaw mem—
her across said opening and having a jaw portion
for juxtaposition to the ?xed jaw member, said 15
lever having also an extension at the jaw end
terminating in a detent, a trigger element piv
otally carried by the support, one arm of which
element is adapted for engagement with said
detent and the other to be positioned above
the said opening and adapted to retain the bait,
a slide member having an end embracing the
said lever and a roller carried by said end be
tween its turned-over portion for engagement
with the side edge of the lever, said edge taper 25
ing for a portion toward the said opening, and
resilient means attached to the other end of the
slide member and to the support between said
opening therein and the fulcrum of the said
30
lever.
10. An animal trap, comprising a support hav
ing an opening through which the head of the
animal must pass to reach the bait, the opening
over a portion being bordered by
member, a lever fulcrumed to the
movement in the plane of said ?xed
across said opening and having a
a ?xed jaw
support for
jaw member
jaw portion
for juxtaposition to the ?xed jaw member, said
lever having also an extension at the jaw end
terminating in a detent, a trigger element piv~ 40
otally carried by the support, one arm of which
element is adapted for engagement with said
detent and the other to be positioned above the
said opening and adapted to retain the bait, a
member slidable along the lever between said
opening and the lever fulcrum and substantially
to the latter, and resilient means drawing said
lever toward the ?xed jaw through said slidable
member, the arm of said lever beyond its ful»
crum being provided with a nose or stop to limit 50'
the movement of the slidable member in a direw
tion away from said opening.
EDWARD S. RINALDY.
ADAM SCHAEFER.
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