A grizzly screen member assembly with a replaceable tip end. The grizzly screen member assembly comprises an elongate base member and a replaceable tip member coupled removably coupled to the replaceable tip member. The elongate base member may be coupled to a panel and assembled into a grizzly feeder system or coupled to the grizzly feeder system itself.

A sediment classification system enables the screening of material that enters a backhoe bucket. Material that enters the bucket exits through a duct with an opening at the back of the bucket. The material is screened by passing between a first set of bars and a second set of bars. The bars have spacers between them attached to one of the sets of bars. The second set of bars is pined to the first set and is able to move to clear material wedged between the bars.

A sediment classification system enables the screening of material that enters a backhoe bucket. Material that enters the bucket exits through a duct with an opening at the back of the bucket. The material is screened by passing between a first set of bars and a second set of bars. The bars have spacers between them attached to one of the sets of bars. The second set of bars is pined to the first set and is able to move to clear material wedged between the bars.

Universal belted chain including a first belt, a second belt, a first rod, a first fastener and a second fastener. The first belt has a first upper surface and a first lower surface. The first lower surface has a first channel formed therein. The second belt has a second upper surface and a second lower surface. The second lower surface has a second channel formed therein. The first fastener attaches the first rod to the first upper surface by extending the first fastener through the first belt. An end of the first fastener opposite the first rod is recessed in the first channel with respect to the first lower surface. The second fastener attaches the first rod to the second upper surface by extending the second fastener through the second belt. An end of the second fastener opposite the first rod is recessed in the second channel with respect to the second lower surface.

Universal belted chain including a first belt, a second belt, a first rod, a first fastener and a second fastener. The first belt has a first upper surface and a first lower surface. The first lower surface has a first channel formed therein. The second belt has a second upper surface and a second lower surface. The second lower surface has a second channel formed therein. The first fastener attaches the first rod to the first upper surface by extending the first fastener through the first belt. An end of the first fastener opposite the first rod is recessed in the first channel with respect to the first lower surface. The second fastener attaches the first rod to the second upper surface by extending the second fastener through the second belt. An end of the second fastener opposite the first rod is recessed in the second channel with respect to the second lower surface.

The disclosure features material separators for screening excavated material (e.g., rocks from soil.) In some implementations the materials separators include (a) a supporting frame; (b) a screening surface mounted at an incline on the supporting frame, the screening surface comprising a plurality of fixed bars that are attached to the frame in a manner to resist upward movement, and a plurality of shift bars that are attached to the frame at their upper and lower ends, in a manner to allow upward movement; and (c) a shift bar actuator, positioned between the upper and lower ends of the shift bars, the shift bar actuator being configured to impart a two-stage movement to the shift bars, whereby during a first stage the upper ends are first displaced vertically, and during a second stage the lower ends pivot upward about the upper ends.

The disclosure features material separators for screening excavated material (e.g., rocks from soil.) In some implementations the materials separators include (a) a supporting frame; (b) a screening surface mounted at an incline on the supporting frame, the screening surface comprising a plurality of fixed bars that are attached to the frame in a manner to resist upward movement, and a plurality of shift bars that are attached to the frame at their upper and lower ends, in a manner to allow upward movement; and (c) a shift bar actuator, positioned between the upper and lower ends of the shift bars, the shift bar actuator being configured to impart a two-stage movement to the shift bars, whereby during a first stage the upper ends are first displaced vertically, and during a second stage the lower ends pivot upward about the upper ends.

A method of peeling tubers includes providing a peeler device defining a cavity surrounded by a peeling mechanism, inputting tubers to be peeled into the cavity, directing electromagnetic radiation from an illumination device into the cavity, detecting electromagnetic radiation reflected into lens of a camera from tubers located in the cavity during a peeling operation by the peeling mechanism, and operating the peeler device based on the reflected electromagnetic radiation detected by the camera. Also disclosed is an apparatus for carrying out the method.

A method of peeling tubers includes providing a peeler device defining a cavity surrounded by a peeling mechanism, inputting tubers to be peeled into the cavity, directing electromagnetic radiation from an illumination device into the cavity, detecting electromagnetic radiation reflected into lens of a camera from tubers located in the cavity during a peeling operation by the peeling mechanism, and operating the peeler device based on the reflected electromagnetic radiation detected by the camera. Also disclosed is an apparatus for carrying out the method.

A grizzly apparatus includes a plurality of grizzly bars arranged at predetermined intervals in a second direction perpendicular to a first direction which is an extension direction of center axes of the grizzly bars. Each of the plurality of grizzly bars is rotatable in a direction opposite to a direction of rotation of its adjacent grizzly bar so that a slit through which a screening target object passes and a gap through which the screening target object does not pass alternately emerge, between adjacent grizzly bars. The guide includes an outer member forming its outer shape, and has at least one guide surface inclined with respect to the second direction in such a way that the guide surface descends as the guide surface advances in the second direction toward the slit to guide the screening target object having fallen onto the guide to the slit.