Rauma Repola Oy

Rauma-repola Oy Loviisan Tehtaat

Matti Jaakonmaki

Pentti Raura

A blade ring for a shaver, consisting of blade units disposed in succession in ring configuration, within which a rotor rotates, urging the chips against the cutting blades. The blade units usually constitute a conical envelope, with a similar conical rotor within. The distance between the rotor and the blades is in means of prior art adjusted by shifting the rotor in axial direction, but this is difficult and requires complicated equipment. The blade ring of the invention is characterized in that each blade unit may be turned about an axis close to the cutting blade and parallelling the blade edge, for adjustment of the thickness of the shavings. By the aid of the invention, the thickness of the shavings can be regulated by simple adjustments.

Blade ring for shaver

A wood chip shaver, consisting of cutting blades disposed on a circle and of a rotor rotating therewithin and carrying on its circumference vane-shaped chip guide members immediately adjacent to the blades, the members guide and press the chips against the blades. In front of the vane of the chip guide member is provided a guide surface approaching the blades in wedge-shape fashion in the travelling direction of the chips, the chips being carried in between the surface and the blades. With the aid the invention the chips are guided to enter between the chip guide members and the blades, whereby leaf-like chips such as are desired are obtained.

Wood chip shaver

A wood chip shaver, consisting of cutting blades disposed on a circle and of a rotor rotating about its drive shaft therewithin and carrying a chip guide means. The drive shaft is vertical and the rotor carries a plurality of chip guide plates on top of each other. By the aid of the invention, each blade will be evenly loaded and do shaving over its whole length.

A shaver for wood chips, consisting of a rotor provided with a chip guide plate and circumferential blades placed on its outside, in connection of which there is an annular interspace for the shavings cut from the chips, wherefrom the shavings further depart through a discharge aperture communicating with the interspace. At least one air passage is provided on the margin of the interspace and in the chip guide plate, through which the air flow created by the rotor can rejoin the circulation in the shaver. With the aid of the invention the air flow created by the rotor can be included in the internal circulation in the shaver and no large objectionable quantities of air depart from the shaver.

Growing community of inventors

Valko, Finland

Matti Jaakonmaki