Binder clip

A foldback clip ( also multi-purpose terminal) is easy tool to stitch paper pages. It will not damage the paper and, in contrast to staples easily be removed.

Features and Usage

A fold - clamp consists of a strip of spring steel sheet is bent to a straight prism. At the top of the prism two handles are attached with the help of which is under voltage clamp can be opened. Rounded edges to prevent case that the sheet metal cut in the paper. Characterized in that the grips can be folded, a relatively low profile is achieved. By squeezing the handles sideways, they can also be removed entirely to permanently bind the paper. In addition, the handles can be used to suspend the bound pages.

Foldback brackets are available in widths ranging from 5 mm to 50 mm, with various clamping lengths. For example, 13 mm wide terminals 4 mm clamping diameter and are suitable for clamp together of about 40 sheets ( at a Papierstaerke of typically 80 g / m ^ 2, a rule of thumb: 10 sheets = 1 mm). They are available in a variety of colors, they are usually colored with a black oxide layer. The sheet is made ​​of stainless steel, nickel, silver or gold. The handles are usually nickel plated.

Pros and Cons

Advantages over regular staples are:

  • Rust resistance
  • Can bind more sheets
  • Binds the sheets fixed without perforating these
  • Reusable
  • Rapid change in removal of single sheets

Disadvantages compared to normal staples are:

  • Higher purchase price
  • Limited stackability more by volume ( due to design)
  • Removable without residue ( for contracts, etc.)

Use

The foldback clips are used today mainly in the use of office. They are used one hand to hold stacks of paper that are too large for staples. However, they can also be used as a bookmark or as a cable brackets, eg by be clamped to a table and the cables are then placed through the handles.

History

The foldback clip was in 1910 by Louis E. Baltzley, in Washington, DC resided invented. The invention carries the U.S. patent number 1,139,267. At this time, the conventional method of bonding paper to punch two holes, and the leaves were sewn together. This however, made it difficult to remove individual leaves. From the use of colored threads or thin strips of fabric originates the English phrase red tape. Louis Baltzley developed the foldback clips to his father Edwin Baltzley, who was a writer and inventor, to help ease the administration of his manuscripts. While the original design up to five times its present form has been changed already, the mechanism always remained the same. Baltzley made ​​his first invention of the LEB Manufacturing Company manufacture. Later, the production rights were assigned, however, to other companies.

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