GB Patent: GB-250,039
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| An Improvement in or Relating to Metal-Planing Machines
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Patentee:
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| Robert Binns (exact or similar names) - Halifax, York County, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 09, 1925 |
| Granted: |
Apr. 08, 1926 |
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Patent Pictures:
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Espacenet patent
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Joel Havens
"Vintage Machinery" entry for C. Redman & Sons
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Description: |
| In a machine for producing tapered work such as switches for railway or tramway rails, the tool-slide g is lowered during the cutting stroke of the work-table b and raised during the idle stroke, or vice versa, 'by means of a rack i adjustably attached to the table and connected through gearing to the screw h which adjusts the tool-slide vertically. More than one tool-slide may be operated in a similar manner. The rack engages a pinion j on a vertical shaft k having spiral or other gears l for rotating a shaft m connected by change-gears o to a shaft q which passes through the cross-slide d and is connected to the screw h by two pairs of bevel gears. The first bevel gear r is loose on the shaft q and may be engaged therewith by a sliding clutch w so that one or more of the tool-slides g may be disconnected at will. The mechanism may be thrown out of gear completely by removing the pinion j. A second rack operating on the opposite side of the pinion j may be provided so as to act when the first rack finishes and thus produce a V-shaped cut.
Claim:
The combination with a planing machine, of a rack secured to the work table and operating through suitable intermediate gearing to lower the tool or tools gradually during one direction of movement of the table and to raise it or them to initial position during the return movement of the table. |
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