A mousetrap is a specialised type of animal trap designed primarily to catch mice; however, it may also (intentionally or unintentionally) trap other small animals. Mousetraps are usually set in an indoor location where there is a suspected infestation of rodents. Larger traps are designed to catch other species of animals; such as rats, squirrels, other small rodents, or other animals.
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Mousetrap types
Jaw mousetrap
The trap that is credited as the first patented lethal mousetrap was a set of spring-loaded, cast-iron jaws dubbed "Royal No. 1". It was patented on 4 November 1879 by James M. Keep of New York, US patent 221,320. From the patent description, it is clear that this is not the first mousetrap of this type, but the patent is for this simplified, easy to manufacture, design. It is the industrial age development of the deadfall trap, but relying on the force of a wound spring rather than gravity.
The jaws of this type are operated by a coiled spring and the triggering mechanism is between the jaws, where the bait is held. The trip snaps the jaws shut, killing the rodent.
Lightweight traps of this style are now constructed from plastic. These traps do not have a powerful snap like other types. They are safer for the fingers of the person setting them than other lethal traps, and can be set with the press on a tab by a single finger or even by foot.
Spring-loaded bar mousetrap
The classic spring-loaded mousetrap was first patented by William C. Hooker of Abingdon, Illinois, who received US patent 528671 for his design in 1894. A British inventor, James Henry Atkinson, patented a similar trap called the "Little Nipper" in 1898, including variations that had a weight-activated treadle as the trip.
In 1899, Atkinson patented a modification of his earlier design that transformed it from a trap that goes off by a step on the treadle into one that goes off by a pull on the bait. The similarity of the latter design with Hooker's of 1894 may have contributed to a common mistake of giving priority to Atkinson.
It is a simple device with a heavily spring-loaded bar and a trip to release it. Cheese may be placed on the trip as bait, but other food such as oats, chocolate, bread, meat, butter and peanut butter are more commonly used. The spring-loaded bar swings down rapidly and with great force when anything, usually a mouse, touches the trip. The design is such that the mouse's neck or spinal cord will be broken, or its ribs or skull crushed, by the force of the bar. The trap can be held over a bin and the dead mouse released into it by pulling the bar. In the case of rats, which are much larger than mice, a much larger version of the same type of trap is used to kill them. Some spring mousetraps have a plastic extended trip. The larger trip has two notable differences over the smaller traditional type: increased leverage, which requires less force from the rodent to trip it; and the larger surface area of the trip increases the probability that even the most cunning of rodents will set off the trap. The exact latching mechanism holding the trip varies a lot and some need to be set right at the edge in order to be sensitive enough to catch cautious mice.
In 1899, John Mast of Lititz, Pennsylvania, filed a U.S. patent for a modification of Hooker's design that can be "readily set or adjusted with absolute safety to the person attending thereto, avoiding the liability of having his fingers caught or injured by the striker when it is prematurely or accidentally freed or released." He obtained the patent on 17 November 1903. After William Hooker had sold his interest in the Animal Trap Company of Abingdon, Illinois, and founded the new Abingdon Trap Company in 1899, the Animal Trap Company moved to Lititz, Pennsylvania, and fused with the J.M. Mast Manufacturing Company in 1905. The new and bigger company in Lititz, however, retained the name Animal Trap Company. Compounding these different but related patents and companies may have contributed to the widespread mis-attribution of priority to Mast rather than Hooker.
Electric mousetrap
This more recent type of mousetrap delivers a lethal dose of electricity when the rodent completes the circuit by contacting two electrodes located either at the entrance or between the entrance and the bait. The electrodes are housed in an insulated or plastic box to prevent accidental injury to humans and pets. They can be designed for single-catch domestic use or large multiple-catch commercial use. See U.S. Patent 4,250,655 and U.S. Patent 4,780,985.
Live-capture mousetrap
Perhaps the earliest patented mousetrap was a live capture device patented in 1870 by W K Bachman of South Carolina. These traps have the advantage of allowing the mice to be released into the wild, or the disadvantage of having to personally kill the captured animal if release is not desired. These traps need to be regularly checked (once a day at least) as captured mice can die slowly from stress or dehydration. Mice would need to be released some distance away, as mice have a strong homing instinct. Survival after release is not guaranteed, since house mice will tend to seek out human buildings, where they might encounter lethal mousetraps or may be eaten by predators. House mice tend to not survive away from human settlements in areas where other small mammals, such as wood mice, are present.
There appears to be endless variations of this type of trap: One of the simplest designs consists of nothing more than a drinking glass placed upside down above a piece of bait, its rim elevated by a coin stood on edge. If the mouse attempts to take the bait, the coin is displaced and the glass traps the mouse. Another is to make a half-oval shaped tunnel with a toilet paper roll, put bait on one end of the roll, place the roll on a counter or table with the baited end sticking out over the edge, and put a deep bin under the edge. When the mouse enters the toilet paper roll to take the bait, the roll (and the mouse) will tip over the edge and fall into the bin below; the bin needs to be deep enough to ensure that the mouse cannot jump out. See also bucket trap.
A style of trap that has been used extensively by researchers in the biological sciences for capturing animals such as mice is the Sherman trap. The Sherman trap folds flat for storage and distribution and when deployed in the field captures the animal, without injury, for examination.
Glue mousetraps
Glue traps are made using natural or synthetic adhesive applied to cardboard, plastic trays or similar material. Bait can be placed in the center or a scent may be added to the adhesive by the manufacturer. Glue traps are used primarily for rodent control indoors. Glue traps are not effective outdoors due to environmental conditions (moisture, dust), which quickly render the adhesive ineffective. Glue strip or glue tray devices trap the mouse in the sticky glue.
Glue traps sometimes do not kill the animal, so that one might want to kill the animal, especially a rat, before disposal. However, the makers of these devices usually state that trapped animals should be thrown away with the trap. This is an advantage if the local population of animals have rat mites since the mite will remain on the animal's body while it is still alive and the glue would also trap mites leaving the animal after the animal's death.
Pets who inadvertently come into contact with the trap can be released from the glue by applying vegetable oil and gently working the animal free. Nevertheless, these types of traps are effective, and non-toxic to humans.
Controversy
Death is much slower than with the traditional type trap, which has prompted animal activists and welfare organisations such as PETA and the RSPCA to oppose the use of glue traps. Trapped mice eventually die from exposure, dehydration, starvation, suffocation, or predation, or are killed by people when the trap is checked. In some jurisdictions the use of glue traps is regulated: Victoria, Australia restricts the use of glue traps to commercial pest control operators, and the traps must be used in accordance with conditions set by the Minister for Agriculture. Other jurisdictions have banned their use entirely; in Ireland it is illegal to import, possess, sell or offer for sale unauthorized traps, including glue traps. This law, the Wildlife (Amendment) Act, was passed in 2000. The use of glue traps to catch rodents without Ministerial approval has been prohibited in New Zealand since 2015. Uncle Bob's Self Storage, the fifth largest self storage company in the United States, has banned the use of these devices at all its facilities; other companies that have taken similar measures are ING Barings and Charles Schwab Corporation.
Bucket mousetraps
Bucket traps may be lethal or non-lethal. Both types have a ramp which leads to the rim of a deep-walled container, such as a bucket.
The bucket may contain a liquid to drown the trapped mouse. The mouse is baited to the top of the container where it falls into the bucket and drowns. Sometimes soap or caustic or poison chemicals are used in the bucket as killing agents.
In the non-lethal version, the bucket is empty, allowing the mouse to live, but keeping it trapped. The unharmed mouse can be released outdoors.
The variations are many with some being single catch and some multi-catch.
Disposable mousetraps
There are several types of one-time use, disposable mousetraps, generally made of inexpensive materials which are designed to be disposed of after catching a mouse. These mousetraps have similar trapping mechanisms as other traps, however, they generally conceal the dead mouse so it can be disposed of without being sighted. Glue traps are usually considered disposable - discard the trap with the mouse attached.
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Similar devices
Similar ranges of traps are sized to trap other animal species; for example, rat traps are larger than mousetraps, and squirrel traps are larger still. A squirrel trap is a metal box-shaped device that is designed to catch squirrels and other similarly sized animals. The device works by drawing the animals in with bait that is placed inside. Upon touch, it forces both sides closed, thereby trapping, but not killing, the animal, which can then be released or killed at the trapper's discretion.
History
A historical reference is found in the Alciati, Emblemata from 1534. Other mouse traps in art from: Gerrit Dou The mouse trap 1650, Nicolas de Larmessin, Rowlandson 1799, Francis Wheatley 1790s, Edmund Bristow 1787-1876 and more can be seen in a blog post by Patricia Bixler Reber.
Mousetraps in literature
Reference to a mousetrap is made as early as 1602 in Shakespeare's Hamlet (Hamlet; act 3 sc.2), where it is the name given to the 'play-within-a-play' by Hamlet himself: "'tis a knavish piece of work", he calls it. There is a reference in the 1800s by Alexandre Dumas, père in his novel The Three Musketeers. Chapter ten is titled "A Mousetrap of the Seventeenth Century". In this case, rather than referring to a literal mouse trap, the author describes a police or guard tactic that involves lying in wait in the residence of someone whom they have arrested without public knowledge and then grabbing, interviewing, and probably arresting anyone who comes to the residence. In the voice of a narrator, the author confesses to having no idea how the term became attached to this tactic.
There is an earlier reference to a mousetrap, found in Ancient Greek The Battle of Frogs and Mice: "... by unheard-of arts they had contrived a wooden snare, a destroyer of Mice, which they call a trap.".
A mousetrap (Spanish: ratonera) figures prominently in the second chapter of the 1554 Spanish novel Lazarillo de Tormes, in which the hero Lazarillo steals cheese from a mousetrap to alleviate his hunger.
Ralph Waldo Emerson is credited (apparently incorrectly) with the oft-quoted phrase advocating innovation: "Build a better mousetrap, and the world will beat a path to your door."
Mousetraps are a staple of slapstick comedy and animated cartoons. The Tom and Jerry cartoon usually bases their plot on Tom attempting to trap Jerry with different (and sometimes ridiculous) methods of trapping the mouse with a device realized as Rube Goldberg machine, often being outsmarted by the latter and injuring himself in the process with the traps.
Mousetraps are also used to demonstrate the principle of a chain reaction.
Source of the article : Wikipedia
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