A bulldog clip is a device for temporarily but firmly binding sheets of paper together. It is made up of rectangular sheet of springy steel curved into a cylinder, with two flat steel strips inserted to form combined handles and jaws. The consumer presses the 2 handles together, causing the jaws to open against the force of the spring, then inserts a stack of papers and releases the handles. The spring forces the jaws together, gripping the papers firmly.
A Clip combined with a suitable piece of board makes a clipboard. BULLDOG is really a registered trademark of Brandsley Limited that is licensed to Faire Bros & Co Limited. Its registration as being a trademark in britain dates back to 1944.
* Bulldog clips have many uses, domestic, industrial and then in crafts and arts.
* Bulldog clips are a good tool for making flicker books since they allow sheets to get added, removed or replaced.
* A novel use for this particular product is to use it as a wire guide in a computer station for instance. The clip can be clamped to the fringe of a desk and computer cables can be threaded with the holes on the end of the tip. This can help the consumer organize wires and prevents them from falling back behind the desk.
* Another use is made for resealing an opened bag of food to maintain it fresh longer.
* Bulldog clips can be utilized in weaving to warp a loom.
* Bulldog clips can be used to make a fast release mechanism for theatre “drops”.
* An eraser held in a Bulldog clip can, through providing a larger surface to grip, come in handy to some people who have motor disabilities.
* A clip can be employed to hold down the Ctrl key on a computer keyboard to circumvent the problem of holding the button down when picking multiple items.
* A clip can be used to pin hair back on top of the person’s head.
A paper clip (or sometimes paperclip) is a device used to hold sheets of paper together, usually made from steel wire bent to your looped shape (though some are covered in plastic). Most paper clips are variations of the Gem type introduced within the 1890s or earlier, characterized by the almost two full loops created by the wire. Present with paper clips proper is the consumption of torsion and elasticity in the wire, and friction between wire and paper. Each time a moderate number of sheets are inserted in between the two “tongues” from the clip, the tongues will be forced apart and cause torsion within the bend in the wire to grip the sheets together.
Paper clips normally have an oblong shape with straight sides, but may even be triangular or circular, or have more elaborate shapes. The most frequent material is steel as well as other metal, but moulded plastic is additionally used. Some other kinds of paper clip utilize a two-piece clamping system. Recent innovations include multi-colored plastic-coated paper clips and spring-fastened binder clips.
Based on the Early Office Museum, the very first patent to get a bent wire paper clip was awarded in the United States to Samuel B. Fay in 1867. This clip was originally intended primarily for attaching tickets to fabric, even though the patent recognized that it could be utilized to attach papers together. Fay received U.S. patent 64,088 on April 23, 1867. Although functional and practical, Fay’s design together with the 50 other designs patented before 1899 are certainly not considered similar to the modern paperclip design known today. Another notable paper clip design have also been patented in the United States by Erlman J. Wright in 1877. This clip was advertised at that time for use in fastening newspapers.
Middlebrook 1899 patent to get a paper clip machine showing the Gem was already in common use (top and bottom)
The most common kind of wire paper clip still being used, the Gem paper clip, has never been patented, but it was more than likely in production in the uk in the early 1870s by “The Gem Manufacturing Company”, in accordance with the American expert on technological innovations, Professor Henry J. Petroski. He refers to an 1883 article about “Gem Paper-Fasteners”, praising them for being “better than ordinary pins” for “binding together papers on the same subject, a bundle of letters, or pages of the manuscript”. Because the 1883 article had no illustration of this early “Gem”, it may have already been different from modern paper clips of that name.
GEM Paper Clip advertisement, Jan 1893, by Cushman & Denison – The earliest illustration of its current form is within an 1893 advertisement for that “Gem Paper Clip”. In 1904 Cushman & Denison registered a trademark for the “Gem” name in connection with paper clips. The announcement stated that it was used since March 1, 1892, which may have been enough time of its introduction in the United States. Paper clips are still sometimes called “Gem clips”, as well as in Swedish the term for virtually any paper clip is “gem”.
Definite proof that this modern type of paper clip was well known in 1899 at the latest, will be the patent granted to William Middlebrook of Waterbury, Connecticut on April 27 of the year for any “Machine to make wire paper clips.” The drawing clearly demonstrates that the item is a great clip in the Gem type. The fact that Middlebrook did not mention it by name, implies that it gctnyu already well known at that time. Since that time countless variations on the same theme have been patented. Some have pointed as opposed to rounded ends, some have the end of merely one loop bent slightly to make it easier to insert sheets of paper, and some have wires with undulations or barbs to acquire a better grip. In addition, purely aesthetic variants have already been patented, clips with triangular, star, or round shapes. Nevertheless the original Gem type has for more than a 100 years proved to be probably the most practical, and consequently quite possibly the most popular. Its qualities-ease of use, gripping without tearing, and storing without tangling-happen to be challenging to improve upon. National Paperclip Day is May 29.