Apparatus and method for fiberizing solid wood blocks
AssigneeAlan A. Marra
InventorsAlan A. Marra, Vic Marra
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Abstract
An apparatus (10) having a rotating fiberizing disc (26, 226 or 326) for fiberizing wood blocks (100) to produce fibrous elements is described. The apparatus includes a housing (12) within which is mounted the disc. The disc is provided with a series of rows (32, 232 or 332) of teeth (28, 228 or 328) on the front planar face (26A, 226A or 326A) as well as a scraper (30, 230 or 330). The wood block is advanced to the face of the disc in a manner such that its long grain direction can be controlled at various angles with respect to the path of the circularly travelling teeth and thereby changing the nature of the resulting fibrous elements.
Claims20
An improved disc for comminuting a wood block to produce fibrous elements having a planar face and journaled for rotation, the improvement which comprises:
- (a) a plurality of teeth having a cylindrically shaped cutting end and protruding from the planar face of the disc which engage and plow through a surface of the wood block to induce total and partial cleavages on the surface of the wood block to produce fibrous elements, the teeth arranged in at least one row on the planar face of the disc;
- and
- (b) a scraper positioned on the planar face of the disc so as to remove fibrous elements from the surface of the wood block.
An apparatus which comprises:
- (a) a rotatable disc with a planar face which is journaled for rotation and having teeth with a cylindrically shaped cutting end and extending from the planar face which engage and plow through a surface of a wood block in a circular path to induce total and partial cleavages on the surface of the wood block to produce fibrous elements as the disc rotates with the teeth arranged in at least one row on the planar face of the disc and having a scraper which sweeps fibrous elements from the surface of the wood block;
- and
- (b) feed means mounted adjacent the rotatable disc which directs the wood block against the face of the disc so that the teeth engage the surface of the wood block in a circular path.
A method for producing fibrous elements from wood blocks, which comprises:
- (a) providing an apparatus which comprises:
- a rotatable disc with a planar face which is journaled for rotation and having teeth with a cylindrically shaped cutting end and extending from the planar face which engage and plow through a surface of a wood block in a circular path to produce fibrous elements as the disc rotates, the teeth arranged in at least one row on the planar face of the disc and having a scraper which sweeps fibrous elements from the surface of the wood block;
- feed means mounted adjacent to the rotating disc which directs the wood block against the face of the disc so that the teeth engage the surface of the wood block in a preset manner;
- and
- (b) introducing the wood block into the apparatus so that the surface of the block engages the teeth on the planar face of the disc with the teeth moving in a circular path on a preset grain direction of the wood block to induce total and partial cleavages on the surface of the wood block to produce fibrous elements and the scraper engages the surface of the wood block to remove fibrous elements from the wood block.
Dependencies are inferred from the claim text.