US Patent: 1,662,511
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| Power-transmitting mechanism
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Patentee:
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| Walter Geist (exact or similar names) - Milwaukee, WI |
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Patent Dates:
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| Applied: |
Jan. 24, 1925 |
| Granted: |
Mar. 13, 1928 |
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Jeff Joslin
Vintage Machinery entry for Allis-Chalmers Mfg. Co.
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Description: |
| This invention, consisting of vee belts and matching pulleys, was intended for using an electric motor to drive an individual machine. It was manufactured by Allis-Chalmers as their "Texrope" system, and was used, for example, on Walker-Turner's TA1180B cabinet saw.One of the advantages claimed for this invention in comparison to earlier rope-drive systems was that the shafts could be spaced much closer together. The belts were of continuous (un-spliced) construction with trapezoidal cross-section fitting into matching grooves in the sheaves. (The innermost surface of a Texrope belt was considerably narrower—coming nearly to a point—than with a modern vee belt.) Multiple belts and grooves can be combined in parallel to increase capacity.The inventor, Walter Geist, was head of engineering for Allis-Chalmers' flour milling transmission group; despite the group's name, Geist was trying to solve power transmission problems in textile machinery, where geared and direct drive systems were too jerky which broke threads, and flat belts were high maintenance and prone to slipping. Other design goals included low cost, compactness, and safety (easy guarding). After introducing their Texrope system in 1925 they quickly realized its usefulness extended far beyond textile machinery. Meanwhile others, including Gates, had been following a similar path but aimed at automotive applications. |
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