GB Patent: GB-190,514,829
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| Improvements in Planing, Shaping, or Slotting Machines with Reciprocating Strokes of Variable Length
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Patentee:
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| Joseph Hartley Wicksteed (exact or similar names) - Leeds, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 19, 1905 |
| Granted: |
May 03, 1906 |
Espacenet patent
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Joel Havens
Joseph Hartley Wicksteed
"Vintage Machinery" entry for Joshua Buckton & Co.
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Description: |
| Note: Early English patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of issue of the application and the patent #. This patent is #14,829 of the year 1905.
Abstract:
Planing, shaping, slotting, and similar machines with reciprocating beds are provided with springs of any elastic solid or fluid material to absorb the energy at the end of the stroke, such springs acting in conjunction with reversing-mechanism. The springs are arranged so that they may be simultaneously adjusted with the reversing-mechanism for variations of stroke, and may have relative adjustment so as to make the cushioning precede, coact with, or follow the reversal of the stroke. Tappets C<2> on the table engage cushioning and reversal springs E', K<2>, mounted on screw rods G<2>, J<2>, the former being fixed and transferring the compression of its spring to the framework of the machine, and the latter admitting of slight movement to alter the position of links O<2>, P, &c. communicating with switches, clutches, or belt forks for reversing the travel of the bed. The thrust of the cushioning-spring E' is taken by a carrier D', shown to larger scale in Fig. 3, provided with a nut F<2> engaging the screwed rod G'. The carrier also passes round the sleeve N' which forms an abutment for the reversing-spring K<2> and encloses the reversing-rod J<2>. The sleeve is feathered into the carrier and is formed at the end with a nut engaging the rod J'. The screwed rods have equal pitches of opposite hands and are connected at the ends by pinions M<2>, L<2>, the latter being connected with its rod by a clutch g<2>, so that on turning the squared end of the rod J<2> both springs move to an equal extent for adjusting the stroke, while, if the clutch g<2> be put out of action and the rod J<2> turned, the spring K<2> may move to a limited extent to bring it above, level with, or below the cushioning-spring E<2>. Instead of the position of the springs being adjusted to vary the stroke, the tappets may be adjusted as shown in Fig. 5. In this case, one rod D<2> does duty both for reversing and cushioning, the reversal being obtained through cams Q<2>. In the latter case, a weak spring e<1>, Fig. 6, may be used to cause reversal before cushioning, and a spring p, Fig. 5, may be used if reversal is required after cushioning. In another modification, there are two reversal rods and only one spring which comes into action whichever way the table is travelling. |
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