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James E. Harris
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دانلود کتاب A Study of Handcuff Improvements
by James E. Harris|
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عنوان فارسی: مطالعه بهبود دستبند |
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جزییات کتاب
Study of Handcuff Improvements
NCJ Number: 86295
Author(s): J E Harris
Date Published: 1980
Annotation:
The report presents designs for improving the security of present day ratchet and pawl metallic handcuffs.
Abstract:
Two methods using a new lock feature were developed that significantly improve the lock, and the National Bureau of Standards has applied for a patent on these innovations. In addition, several other potential handcuff improvements are discussed. They include using a single chain instead of the present two or more (a proper-sized single chain would preclude interlocking the handcuff swivels), adding a back edge chamber to and reducing the slope of the last ratchet tooth, and adding coined 'match-up' marks to the ratchets and housings. Drawings and photographs are supplied.
NCJ Number: 86295
Author(s): J E Harris
Date Published: 1980
Annotation:
The report presents designs for improving the security of present day ratchet and pawl metallic handcuffs.
Abstract:
Two methods using a new lock feature were developed that significantly improve the lock, and the National Bureau of Standards has applied for a patent on these innovations. In addition, several other potential handcuff improvements are discussed. They include using a single chain instead of the present two or more (a proper-sized single chain would preclude interlocking the handcuff swivels), adding a back edge chamber to and reducing the slope of the last ratchet tooth, and adding coined 'match-up' marks to the ratchets and housings. Drawings and photographs are supplied.
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