In a cutting device, a cutting blade is reciprocally movable within a movable range including a first retracted position away from a target to be cut and a cut complete position at which cutting of the target is to be completed. A memory is configured to store cutting data indicating the first retracted position. A controller is configured to perform controlling, in response to determining that the cutting blade has stopped at an intervening position between a cut start position at which cutting of the target is started and the cut complete position, a drive portion to move the cutting blade from the intervening position to a second retracted position positioned within the movable range and away from the target. The controller is configured to further perform updating the cutting data stored in the memory so as to indicate the second retracted position in place of the first retracted position.

A cutting device, including a frame, a cutting blade, which is fastened to the frame for pivoting about a first pivot axis, and a reduction transmission, which converts each forward pivoting movement of a plurality of successively performed forward pivoting movements and backward pivoting movements of a drive arm into a cutting pivoting movement of the cutting blade. A cutting-blade back-pivoting apparatus is provided, by which the cutting blade can be pivoted back from a pivoting end position to an initial position. The back-pivoting apparatus has, in particular, a tension element, which acts on the cutting blade in such a way that a clearance is formed.

A cutting device, including a frame, a cutting blade, which is fastened to the frame for pivoting about a first pivot axis, and a reduction transmission, which converts each forward pivoting movement of a plurality of successively performed forward pivoting movements and backward pivoting movements of a drive arm into a cutting pivoting movement of the cutting blade. A cutting-blade back-pivoting apparatus is provided, by which the cutting blade can be pivoted back from a pivoting end position to an initial position. The back-pivoting apparatus has, in particular, a tension element, which acts on the cutting blade in such a way that a clearance is formed.

A half cutter includes a cutting blade having a blade and a holder to which the blade is fixed, a blade receiving member having a blade receiving surface from and with which the blade is separated and comes into contact, and a spacer having at least one of a holder spacer arranged at the holder which is made of a material that is different from a material of the holder, is provided in the holder to protrude toward the blade receiving surface further than the blade, and generates a gap between the blade and the blade receiving surface and a blade receiving spacer arranged at the blade receiving surface which is made of a material different from a material of the blade receiving member, is provided to protrude from the blade receiving surface, and generates a gap between the blade and the blade receiving surface.

A half cutter includes a cutting blade having a blade and a holder to which the blade is fixed, a blade receiving member having a blade receiving surface from and with which the blade is separated and comes into contact, and a spacer having at least one of a holder spacer arranged at the holder which is made of a material that is different from a material of the holder, is provided in the holder to protrude toward the blade receiving surface further than the blade, and generates a gap between the blade and the blade receiving surface and a blade receiving spacer arranged at the blade receiving surface which is made of a material different from a material of the blade receiving member, is provided to protrude from the blade receiving surface, and generates a gap between the blade and the blade receiving surface.

A cutting board for cutting food articles into parts. The cutting board has a pair of long sides and a pair of short sides defining an area of the cutting board. A lateral groove extends between the pair of long sides and differentiates the area of the board into a first platform and a second platform. The area is further differentiated into a third platform which is adjacent to the second platform. A blade pivotally coupled to the end of the lateral groove. The cutting board further includes a finger guard and a food stopper.

A cutting board for cutting food articles into parts. The cutting board has a pair of long sides and a pair of short sides defining an area of the cutting board. A lateral groove extends between the pair of long sides and differentiates the area of the board into a first platform and a second platform. The area is further differentiated into a third platform which is adjacent to the second platform. A blade pivotally coupled to the end of the lateral groove. The cutting board further includes a finger guard and a food stopper.

A half cutter includes a cutting blade having a blade and a holder to which the blade is fixed, a blade receiving member having a blade receiving surface from and with which the blade is separated and comes into contact, and a spacer having at least one of a holder spacer arranged at the holder which is made of a material that is different from a material of the holder, is provided in the holder to protrude toward the blade receiving surface further than the blade, and generates a gap between the blade and the blade receiving surface and a blade receiving spacer arranged at the blade receiving surface which is made of a material different from a material of the blade receiving member, is provided to protrude from the blade receiving surface, and generates a gap between the blade and the blade receiving surface.

A half cutter includes a cutting blade having a blade and a holder to which the blade is fixed, a blade receiving member having a blade receiving surface from and with which the blade is separated and comes into contact, and a spacer having at least one of a holder spacer arranged at the holder which is made of a material that is different from a material of the holder, is provided in the holder to protrude toward the blade receiving surface further than the blade, and generates a gap between the blade and the blade receiving surface and a blade receiving spacer arranged at the blade receiving surface which is made of a material different from a material of the blade receiving member, is provided to protrude from the blade receiving surface, and generates a gap between the blade and the blade receiving surface.

A borehole is bored to a borehole target depth in a site and a geothermal heat exchanger is inserted into and then secured in the borehole at the desired depth. Once the heat exchanger has been secured in the borehole, the heat exchanger has a closed distal end and an open proximal end and has at least one fluid path between the closed distal end and the open proximal end, with installation fluid disposed in the fluid path(s). After securing the heat exchanger in the borehole and before excavation of a portion of the site immediately surrounding the borehole, the heat exchanger is temporarily sealed by installing, through the open proximal end, at least one respective internal seal in each fluid path. For each fluid path, the internal seal(s) will be disposed below a respective notional subgrade depth and excavation of the site immediately surrounding the borehole can proceed.