US Patent: 5,522,441
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| Wood lathe tooling
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Patentees:
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| William D. Fulton (exact or similar names) - Puddington, Great Britain |
| Stephen J. Perry (exact or similar names) - Windermere, Great Britain |
| Roger Bowness (exact or similar names) - Windermere, Great Britain |
| Gordon Footit (exact or similar names) - Grasmere, Great Britain |
| Kenneth R. Anselm (exact or similar names) - LaCenter, KY |
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Patent Dates:
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| Applied: |
Aug. 10, 1994 |
| Granted: |
Jun. 04, 1996 |
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Jeff Joslin
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Description: |
| These cutterheads for automatic lathes—especially Mattison lathes—are manufactured by Western Cutterheads as their "Hydro Tooling". The cutterhead cylinder has eight dovetailed slots that can hold knife carriers. The carriers can be of various cutting diameters and various shear angles. A wedge retains the knife and is designed so that the centrifugal force on the knife serves to tighten the wedge more securely. In addition, the knives are corrugated to prevent them for sliding outward."A cutterhead, particularly for wood lathe tooling includes one or more sleeves each of which has an inner hydraulically operated circumferential gripper for securement to a rotatable arbor, and an outer, independently hydraulically operated circumferential gripper for securement to a cylinder. The outer peripheral surface of the cylinder is provided with longitudinal dovetail ribs. Knife carriers and space-filling limiters slide axially onto these ribs and are locked in place by set screws. Each carrier has a slot for radially receiving a knife to be gripped between a wedge and a corrugated keeper. The keeper and carrier slot are keyed together to provide for radial adjustment of the knife. A threaded pin restrains slot spreading and radially retains the wedge and keeper. Wedge action prevents radial throwing of elements should someone neglect to secure the carriers or limiters, or neglect to elevate the wedges. Knives are slotted for easy removal, and corrugated to match the keepers to facilitate knife height adjustment. All but inner and outer rings of the sleeves, the threaded pins and keepers are made of aluminum. The knives are made of steel." |
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