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, creating 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 Hollow Card Holder coupled with an appropriate part of board makes a clipboard. BULLDOG is actually a registered trademark of Brandsley Limited that is licensed to Faire Bros & Co Limited. Its registration as being a trademark in the uk dates back to 1944.
* Bulldog clips have several uses, domestic, industrial and in crafts and arts.
* Bulldog clips are a good tool to make 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 with a computer station as an example. The clip can be clamped on the edge of a desk and computer cables can be threaded through 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 keep it fresh longer.
* Bulldog clips can be used in weaving to warp a loom.
* Bulldog clips can be employed to make 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 to a few people with motor disabilities.
* A clip can be used to hold down the Ctrl key on the computer keyboard to circumvent the matter of holding the button down when selecting multiple items.
* A clip can be utilized to pin hair back on top of any 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 a looped shape (though some are covered in plastic). Most paper clips are variations of the Gem type introduced inside the 1890s or earlier, characterized by the almost two full loops made by the wire. Present with paper clips proper is their usage of torsion and elasticity inside the wire, and friction between wire and paper. Each time a moderate variety of sheets are inserted involving the two “tongues” in the clip, the tongues will be forced apart and cause torsion within the bend in the wire to grip the sheets together.
Paper clips usually have an oblong shape with straight sides, but may also be triangular or circular, or have more elaborate shapes. The most frequent material is steel or some other metal, but moulded plastic can also be 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.
According to the Early Office Museum, the first patent for any bent wire paper clip was awarded in the usa to Samuel B. Fay in 1867. This clip was originally intended primarily for attaching tickets to fabric, even though the patent recognized that could be used 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 just before 1899 are not considered similar to the present day paperclip design known today. Another notable paper clip design have also been patented in the usa by Erlman J. Wright in 1877. This clip was advertised at that time to be used in fastening newspapers.
Middlebrook 1899 patent for any paper clip machine showing that the Gem was already in common use (top and bottom)
The most frequent kind of wire paper clip still in use, the Gem paper clip, has never been patented, but it was most likely in production in great britan in the early 1870s by “The Gem Manufacturing Company”, according to the American expert on technological innovations, Professor Henry J. Petroski. He refers to 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”. Considering that the 1883 article had no illustration of this early “Gem”, it may have already been distinctive from modern paper clips of this name.
GEM Paper Clip advertisement, Jan 1893, by Cushman & Denison – The earliest illustration of the current form is at an 1893 advertisement for your “Gem Paper Clip”. In 1904 Cushman & Denison registered a trademark for the “Gem” name in relationship with paper clips. The announcement stated that it had been used since March 1, 1892, which may happen to be the time of their introduction in america. Paper clips remain sometimes called “Gem clips”, as well as in Swedish the term for just about any paper clip is “gem”.
Definite proof that this modern type of paper clip was well known in 1899 on the latest, is the patent granted to William Middlebrook of Waterbury, Connecticut on April 27 of this year for a “Machine for making wire paper clips.” The drawing clearly demonstrates that the merchandise is a great clip in the Gem type. The truth that Middlebrook failed to mention it by name, suggests that it gctnyu already well known at the time. Since then countless variations on the same theme happen to be patented. Some have pointed as opposed to rounded ends, some have the end of a single loop bent slightly to help you to insert sheets of paper, plus some have wires with undulations or barbs to acquire a better grip. Furthermore, purely aesthetic variants happen to be patented, clips with triangular, star, or round shapes. But the original Gem type has for more than a 100 years became probably the most practical, and consequently by far the most popular. Its qualities-convenience, gripping without tearing, and storing without tangling-happen to be challenging to improve upon. National Paperclip Day is May 29.