GB Patent: GB-189,811,889
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| Improved Reverse and Variable Cut Off for Portable and Other Engines
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Patentee:
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| John Abell (exact or similar names) - Toronto, York County, ON, Canada |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 24, 1898 |
| Granted: |
Apr. 22, 1899 |
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Patent Pictures:
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Espacenet patent
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Joel Havens
"Vintage Machinery" entry for John Abell Engine & Machine Works
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Description: |
| Patented in Canada, #CA-60,739.
Abstract:
Relates to variable cut-off and reversing gear for portable and other engines. The valve is actuated by an adjustable crankpin D, Fig. 2, carried by a disc F which is geared in the manner shown to the crank shaft K. The crank-pin is mounted on a slide E which can be moved across the disc by means of a pinion M in gear with a rack cut in the slide. The shaft L carrying the pinion is enclosed for a portion of its length in a sleeve H formed in one with the disc F and rotating in a bearing. The other end of the shaft L has adjustably secured to it a sleeve N also rotating in a bearing. The adjacent ends of these sleeves are enclosed by a sleeve 0, Fig. 3, in which is cut a pair of oppositely-inclined helical grooves d, d containing movable blocks e, e pivoted to the sleeves. The sleeve 0 has on it a collar or flange b engaged by one end of a bell crank Q, the other end of which is connected to a hand reversing-lever by which the expansion can be varied or the engine reversed while in motion.
In mechanism for the purpose described, a slide having a wrist pin on which is thereon on which is journaled the valve connecting rod in combination with a disk having guides thereon in which the said slide may move: a suitably journaled sleeve on which the said disk id fast; means for revolving the said sleeve from some moving part; a shaft within the sleeve; a connection between the shaft and the slide whereby the latter may be moved by the turning of the shaft. |
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