A bulldog clip is a device for temporarily but firmly binding sheets of paper together. It includes a rectangular sheet of springy steel curved into a cylinder, with two flat steel strips inserted to form combined handles and jaws. An individual presses both 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 Skeleton Clip combined with an appropriate piece of board makes a clipboard. BULLDOG is a registered trademark of Brandsley Limited which can be licensed to Faire Bros & Co Limited. Its registration as a trademark in the uk dates back to 1944.
* Bulldog clips have many uses, domestic, industrial and then in arts and crafts.
* Bulldog clips are a good tool to make flicker books because they allow sheets to become added, removed or replaced.
* A novel use for this particular product is to use it as a wire guide in a computer station for example. The clip can be clamped on the edge of a desk and computer cables can be threaded with the holes on the end in the tip. This can help an individual organize wires and prevents them from falling back behind the desk.
* Another use is made for resealing an opened bag of food to help keep it fresh longer.
* Bulldog clips can be used in weaving to warp a loom.
* Bulldog clips can be utilized to produce a fast release mechanism for theatre “drops”.
* An eraser held in a Bulldog clip can, by offering a larger surface to grip, be of use for some people with motor disabilities.
* A clip can be employed to hold down the Ctrl key over a computer keyboard to circumvent the problem of holding the button down when picking multiple items.
* A clip can be employed to pin hair back on top of any person’s head.
A paper clip (or sometimes paperclip) is actually a device used to hold sheets of paper together, usually made from steel wire bent to a looped shape (though some are covered in plastic). Most paper clips are variations of the Gem type introduced within the 1890s or earlier, described as the almost two full loops produced by the wire. Present with paper clips proper is the usage of torsion and elasticity within the wire, and friction between wire and paper. When a moderate number of sheets are inserted between the two “tongues” in the clip, the tongues will likely be forced apart and cause torsion in the bend from the wire to grip the sheets together.
Paper clips will often have an oblong shape with straight sides, but may even be triangular or circular, or get more elaborate shapes. The most typical material is steel or some 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 initial patent for any bent wire paper clip was awarded in america to Samuel B. Fay in 1867. This clip was originally intended primarily for attaching tickets to fabric, even though patent recognized that could be employed to attach papers together. Fay received U.S. patent 64,088 on April 23, 1867. Although functional and practical, Fay’s design combined with the 50 other designs patented just before 1899 usually are not considered similar to the modern paperclip design known today. Another notable paper clip design was also patented in the usa by Erlman J. Wright in 1877. This clip was advertised during that time to use in fastening newspapers.
Middlebrook 1899 patent to get a paper clip machine showing that the Gem was already in common use (top and bottom)
The most frequent form of wire paper clip still in use, the Gem paper clip, was never patented, but it was more than likely in production in the uk in early 1870s by “The Gem Manufacturing Company”, according to the American expert on technological innovations, Professor Henry J. Petroski. He identifies an 1883 article about “Gem Paper-Fasteners”, praising them to be “much better than ordinary pins” for “binding together papers on the same subject, a lot of money of letters, or pages of any manuscript”. Because the 1883 article had no illustration of this early “Gem”, it may have been different from modern paper clips of this name.
GEM Paper Clip advertisement, Jan 1893, by Cushman & Denison – The earliest illustration of its current form is in an 1893 advertisement for your “Gem Paper Clip”. In 1904 Cushman & Denison registered a trademark for your “Gem” name in relationship with paper clips. The announcement stated that it was used since March 1, 1892, which may happen to be enough time of their introduction in america. Paper clips continue to be sometimes called “Gem clips”, and then in Swedish the term for just about any paper clip is “gem”.
Definite proof that this modern form of paper clip was well known in 1899 in the latest, is definitely the patent granted to William Middlebrook of Waterbury, Connecticut on April 27 of the year for any “Machine for producing wire paper clips.” The drawing clearly shows that the product is a perfect clip from the Gem type. The fact that Middlebrook failed to mention it by name, implies that it gctnyu already well known during the time. Since that time countless variations on the same theme happen to be patented. Some have pointed rather than rounded ends, some hold the end of one loop bent slightly to help you to insert sheets of paper, and some have wires with undulations or barbs to get a better grip. Furthermore, purely aesthetic variants happen to be patented, clips with triangular, star, or round shapes. Nevertheless the original Gem type has for more than a century turned out 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 difficult to improve upon. National Paperclip Day is May 29.