Category:Geared rack jacks
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English: Geared rack jacks, where a mechanical gear system is used to wind a pinion against a straight rack gear. Most commonly used in German-speaking countries, and also unseen in English-speaking countries where they are regarded as unreliable and unsafe, owing to a lack of inherent positive locking against descent as a screw jack provides.
Deutsch: Zahnstangenwinde
Media in category "Geared rack jacks"
The following 6 files are in this category, out of 6 total.
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Domkraft, fig 1, Nordisk familjebok.png 442 × 1,069; 40 KB
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Mémoires d'artillerie Surirey 79397.jpg 3,651 × 2,684; 1.95 MB
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Stahlwinde.jpg 2,024 × 3,063; 1.42 MB
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Zännradwann Millewier.jpg 2,736 × 3,648; 4.39 MB
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Zännradwann--w.jpg 854 × 1,779; 533 KB
