| 21. | Jigsaws first emerged in the 19th century and employed a treadle to operate the blade.
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| 22. | Around 1480, the early medieval rotary grindstone was improved with a treadle and crank mechanism.
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| 23. | Most eight-shaft floor looms have only ten to twelve treadles due to space limitations.
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| 24. | However, the treadle-like left hand is present, keeping her rooted in reality.
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| 25. | After European contact, treadle looms were introduced, although backstrap looms continue to be popular.
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| 26. | BTW, if I had a treadle pump at my disposal I would take a photo.
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| 27. | These included crank-, treadle-powered and horse-powered workshop and light industrial machinery.
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| 28. | On treadle operated looms, the number of sheds is limited by the number of treadles available.
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| 29. | On treadle operated looms, the number of sheds is limited by the number of treadles available.
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| 30. | Standard treadle pumps are suction pumps, and were first developed in the early 1980s in Bangladesh.
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