Oversewn binding
Encyclopedia
Oversewn bindings are a type of bookbinding
Bookbinding
Bookbinding is the process of physically assembling a book from a number of folded or unfolded sheets of paper or other material. It usually involves attaching covers to the resulting text-block.-Origins of the book:...

 produced by sewing together loose leaves of paper
Paper
Paper is a thin material mainly used for writing upon, printing upon, drawing or for packaging. It is produced by pressing together moist fibers, typically cellulose pulp derived from wood, rags or grasses, and drying them into flexible sheets....

 to form a text block. Threads pass through small holes that have been punched in the signature's gutter margin (nearest the spine), forming overlock stitches that attach it to previously attached sections. This method of stitching is sometimes called stab sewing. A piece of linen
Linen
Linen is a textile made from the fibers of the flax plant, Linum usitatissimum. Linen is labor-intensive to manufacture, but when it is made into garments, it is valued for its exceptional coolness and freshness in hot weather....

 is then glued to the text block spine for further support. The book's spine may be rounded and backed to keep it from caving in, but if the text block is too thick, the spine is sometimes left flat. A strip of cloth called a super is then often affixed to the spine of the text block and then to the boards of the case. Oversewing can be done by hand but is usually done with a machine in a bindery
Bindery
Bindery refers to a studio, workshop or factory where sheets of paper are fastened together to make books, but also where gold and other decorative elements are added to the exterior of books, where boxes or slipcases for books are made and where the restoration of books is carried out.-Overview:A...

.

Oversewing was frequently used as a rebinding
Library binding
Library binding is the term used to describe the method of binding serials, and re-binding paperback or hardcover books, for use within libraries. Library binding increases the durability of books, as well as making the materials easier to use...

 technique for libraries. In this case, the book's spine must be separated from the text block. Usually this requires removing a small section of the leaves' inside margin as well. It is a very strong, durable binding technique, but has lost popularity since the 1980s due to some characteristics librarians perceive as drawbacks.

__FORCETOC__

History

Cedric Chivers patented hand oversewing in 1904. He emphasized its efficiency and pointed out that technicians could do the work previously entrusted only to trained binders. Chivers opened operations in Bath, England and New York City
New York City
New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

, and by 1908 his American operation had served up to five hundred libraries in the United States. He was a skilled salesman, but historians suggest Chivers was overly focused on financial gain to the disregard of standards and specifications like the Committee on Leather for Bookbinding.

In 1920, W. Elmo Reavis, a bookbinder from Los Angeles
Los Ángeles
Los Ángeles is the capital of the province of Biobío, in the commune of the same name, in Region VIII , in the center-south of Chile. It is located between the Laja and Biobío rivers. The population is 123,445 inhabitants...

, invented an oversewing machine, and began selling it to American libraries. The mechanization of the process Chivers patented led to oversewing - now mass-produced, assembly line
Assembly line
An assembly line is a manufacturing process in which parts are added to a product in a sequential manner using optimally planned logistics to create a finished product much faster than with handcrafting-type methods...

 work - becoming even more popular. By the 1930s, oversewing was part of standard library binding specifications.

Drawbacks

In 1967, Matt Roberts, chief of the circulation department of the Washington University library, first documented the drawbacks of oversewn bindings. It is especially threatening to books with acidic paper; the tight sewing in the gutter margin may cause shards of this paper, in its weakened, embrittled state, to tear and flake off. Oversewn bindings are also often very tightly bound, so it is difficult for books' spines to open fully and lie flat. From a conservation
Preservation (library and archival science)
Preservation is a branch of library and information science concerned with maintaining or restoring access to artifacts, documents and records through the study, diagnosis, treatment and prevention of decay and damage....

standpoint, a primary concern about oversewing is that it is essentially irreversible. In order for an oversewn text block to be re-bound yet another time, more of the inside margin has to be cut or ground off. Some librarians believe that it is a hasty practice which favors cost over artifactual value, as original bindings may potentially be restorable.

By 1986, most librarians and conservators had agreed that the threats of oversewn bindings out-weighed their benefits. Now various types of adhesive bindings, especially double-fan adhesive, are favored by library binders.

Even Cedric Chivers admitted, in 1925,
"These methods were the best which at that time could be contrived, but presently complaints began to be made as to the durability of some of my bindings. Pages broke away from the sewing . . . Indeed I [now] frequently lose contracts for Library binding because of my refusal to follow the instructions of a specification which under other conditions I personally drew up.
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK