Improvements in Traps for Rats, Mice, and other Animals.
Year: 1884

page_text: BUYDUNAL
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SPECIFICATION.
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Improvements in Traps for Rats, Mice, and other Animals.
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I, JOHN LEIPER, of Bryn Efa, Rhyddlan, in the county of Flint, Patternmaker,
do hereby declare the nature of my invention for "IMPROVEMENTS IN TRAPS FOR
RATS, MICE, AND OTHER ANIMALS," to be as follows:-
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This invention consists of a wheel with four or more arms turning with its,
spindle between two sides by a spring coiled on the spindle. or by a cord and,
weight and wound with a key similar toy a clock. On the spindle is fixed two
ratchet wheels having the teeth reversed, on one of which there is a tooth for each,
arm of the wheel, with a spring click or detent to hold it in position, one end of a.
lever moving on a pivot is connected to the click or detent, and from the other end.
is carried a wire down to the bottom with a hook on the end to place the bait,
upon, sufficiently clear, for the arms to pass over when set in motion by the spring
or weight; the other ratchet wheel with twice the number of teeth and a paul is.
simply to prevent it being turned back.
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To set it for use, a small door is opened on one side, a peice of meat is placed on.
the hook, and the door closed, the paul is lifted off the ratchet wheel, the key is
applied, the paul is dropped again and it is ready for use, when its action is as
follows; The animal passes in under one arm to the hook in front of the next arın,
and by pulling the meat and hook releases the click or detent from the ratchet
wheel and allows the spring or weight to move the arms round till stopped by the.
click or detent on the next tooth of the ratchet wheel and consequently takes the
animal before it inside, and is in the same position as before.

page_text: I, JOHN LEIPER, of Bryn Efa, Rhyddlan, Flintshire Gentleman, do hereby declare
the nature of my said invention for IMPROVEMENTS IN TRAPS FOR RATS, MICE,
AND OTHER ANIMALS, and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :-
The invention consists in constructing traps that shall allow of free access to the
bait and when operated by the animal pulling at the bait shall push or thrust the
animal into a cage and be thereby set ready to be operated by another animal and
so on as long as any bait remains-whereby the trap is self setting and one baiting.
will last a long time if properly fastened to the hook. The invention is most con-
veniently performed as illustrated in the accompanying. drawing which represents
a full sized trap for mice-Fig. 1 being a sectional elevation and Fig. 2 a plan with
cover M removed-Fig. 3 detail-all the letters refer to corresponding parts in
the figures-A is the side or wall of the trap, A¹ bait hole, B inclined or curved
board over which mouse is pushed by the movement of the blade H into the
cage K-C is the bait hook pivoted on the lower end of the lever D as shown' and.
which lever is pivoted at a fulcrum point D₁-the upper end of the lever D is
connected with a cross arm E pivoted to a detent F kept normally in position
against a tooth of the ratchet wheel G by the spring J as shown, H are four blades,
any convenient quantity may be used, Li are distance or support bolts for securing
the side walls, M is a cover, N is a spiral spring fitted on the axle of the bladed fan
or wheel H and serving to operate it when the detent F is withdrawn by the
mouse pulling the bait and moving the lever.D, O.is a ratchet winding wheel
fitted with the pawl O¹ and a thumb or turn screw P-the arrows show the
direction in which the mouse enters and approaches the bait-The trap is set as
follows; the thumb screw P is turned until the spring on the axle, on which it is
keyed, is wound up; bait is put on the hook which is placed in its position as
shown for placing the bait the hook can be lowered as shown in dotted lines―
The action is as follows, a mouse enters the trap in the direction of the arrow and
nibbles or pulls at the bait on C thus pulling the lower end of the lever D toward
it, this lever thereby pulls outwardly the arm E which in its turn draws back or
disengages the, detent F from the ratchet wheel G thus allowing and causing the
fan H to move round a fourth part of a circle and push the mouse forward over B
into the cage K-the fan wheel only moving in one direction as denoted for the
arrow there is no means of the animal escaping and on the wheel moving the
required distance the bait hook is pulled up again in position as shown, for another
animal to enter. The trap can be made of any convenient material and any
desired size to catch any animals required and in mere matters of detail the parts
may be varied,

page_text: 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
The improvements consisting of the combination of the moving wheel or fan H
with spring attachment and releasing mechanism operated by the animal, together
with the adjustable bait hook, to form an animal setting trap all substantially as
illustrated and described and for the purposes set forth.