El quitagrapas, sacagrapas o desgrapadora es un utensilio que se emplea para extraer las grapas que sujetan los folios de papel, evitando el posible daño en uñas o dedos. Se trata de una simple pinza que permite, con su bordes curvados, sacar las grapas introducidas en el papel. La pinza posee un muelle que le permite volver a su posición original al disminuir la presión. == Historia == Aunque existían utensilios similares a comienzos del siglo XX, una versión modificada de quitagrapas fue ideada por William G. Pankonin de Chicago, Illinois. La forma similar a la actual fue patentada por Joseph…

A staple remover is a device that allows for the quick removal of a staple from a material without causing damage. Also known as a ’’’canassas’’’, the best-known form of staple remover, designed for light-gauge staples, consists essentially of a) two opposing, pivot-mounted pairs of thin, steep wedges and b) a spring that returns the device to the open position after use. Although a simple metal wedge can be used for the same purpose, and although some staplers (especially small ones about 1.5 inches (3.8 cm) long) feature such a wedge at their hinge end, use of the wedge tends to tear fragile...

"Mind the gap" (listen ) is an audible or visual warning phrase issued to rail passengers to take caution while crossing the horizontal, and in some cases vertical, spatial gap between the train door and the station platform. The phrase was first introduced in 1969 on the London Underground in the United Kingdom. It is today popularly associated with the UK among tourists because of the particularly British word choice (this meaning of the verb mind has largely fallen into disuse in the US). == Origin of the phrase == The phrase "Mind the gap" was coined in around 1968 for a planned autom...