ripper


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Related to ripper: Jack the Ripper

ripper

Software that converts audio and video content into formats for computer storage and playback. See ripping and MP3.

Ripper

 

an excavating machine for loosening layers of frozen soil, rock (usually of medium strength), and artificial surfaces in layers using the tractive force of a prime mover. Rippers are used in construction together with other excavating machines to prepare foundation pits, canals, and trenches; they are also used for stripping work in open-pit mines.

Rippers are equipped with a trailer or mounted tined device with elements for attachment to the prime mover and a hydraulic drive. A distinction is made between three-armed, four-armed, and parallelogram mounted devices. Rippers may have remote adjustment for the angle, operating width, and depth of ripping. The working member of the ripper is a tooth with a replaceable tip and a wear-resistant protective covering. Modern rippers usually have a hydraulic drive to raise and lower the teeth, change the ripping angle of the tip of the tooth, control the mechanism that positions the arms, and change the spacing of the teeth. Some rippers have shock absorbers to reduce the transfer of peak dynamic loads to the prime mover and attachments for working with push tractors.

REFERENCES

Rovinskii, M. I., and G. A. Shloido. Navesnye rykhliteli dlia razrabotki merzlykh i skal’nykh gruntov. Moscow, 1965.
Mashiny dlia razrabotki merzlykh gruntov. Moscow, 1973.

G. A. SHLOIDO

ripper

ripper, 1
1. An attachment with long angled teeth that fits on the rear of a tractor or is towed by it; penetrates and loosens subsurface layers of earth to a depth of up to 3 ft (approx. 1 m).
2. A tool used for removing damaged slates on a roof; consists of a long steel blade with a notched hook at one end for withdrawing nails.
3. A towed machine, provided with teeth to loosen hard soil and soft rock.
References in periodicals archive ?
The Holy Ghost Writer's use of fictional detective Sherlock Holmes, infamously known for his "astute logical reasoning" along with an uncanny ability to adopt to almost any disguise was thus the perfect protagonist to solve the mystery of Jack the Ripper.
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So many years later, interest in the Ripper endures.
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Compelling as the theory seems, the most likely female Ripper was not a midwife - although it's plausible that's what she told victims.
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The North East historian has penned a novel on the Whitechapel murderer which points the finger at George Chapman, a convicted killer who was also prime suspect in the minds of the police chasing the Ripper.
Yorkshire Ripper Peter Sutcliffe has jumped to the defence of Savile, who he claims is innocent.
The famous 492-year-old building swarmed with period-dressed extras to recreate the late 19th century streets where terrifying serial killer Jack the Ripper prowled.