A log saw for cutting convolutely wound logs of web material is disclosed. The log saw includes a cutting blade operating in a cutting plane, a log saw clamp for the retention of a convolutely wound log of web material such that the convolutely wound log of web material extends in a log advancing path through to the cutting plane, and controls connected to the clamping device.

An apparatus for forming and sealing a duct member for use in an air handling system. At least one work station accommodates a work piece, which is generally a cylindrical tube.

A pipe cutting device with a positioning element and a counter-support, which are formed on a c-shaped working head, wherein the working head also transitions into a foot part that can also be used as a grip region, and the positioning element can be displaced relative to the foot part to change an opening width of the working head, wherein the positioning element can also be fixed on the foot part by a detent device, which has a hand-operable engagement element that interacts with a receiving part to fix the detent. In order to improve the design in terms of handling, the engagement element is situated on the positioning element and can be displaced together with the positioning element relative to the receiving part.

A strand of connected elastics is disclosed. The strand includes a series of elastic bands and a series of connecting portions that connect the series of elastic bands to each other. The connecting portions may have configurations that enable them to broken when separation and use of an elastic from an end of the strand is desired. Methods for manufacturing and using strands of connected elastics are also disclosed.

A strand of connected elastics is disclosed. The strand includes a series of elastic bands and a series of connecting portions that connect the series of elastic bands to each other. The connecting portions may have configurations that enable them to broken when separation and use of an elastic from an end of the strand is desired. Methods for manufacturing and using strands of connected elastics are also disclosed.

A flex adapter for a stripping tool for treating plastic pipes or pipes coated with plastic, comprising a base body, at least two fins with respective sops. The fins are flexibly designed such that an outer radial load on the stops produces an opposing spring force; the fins are present in the rear region of the base body. The flex adapter according to the invention further comprises tensioning elements that are arranged integrally in the front region on the base body.

Device for locking two adjacent sections (1, 2) of a roll of paper (3) placed on the sides of a cutting section plane (4) defined by the movement of a cutting blade (5) of a cutting-off machine (M), comprising a pair of clamping devices (6, 7) configured to be able to assume an unlocking configuration with a locking configuration of respective sections (1, 2) of the roll (3); at least a first actuator (8) which can be operated on command to pass said clamping devices from the unlocking configuration to the locking configuration of the respective sections (1, 2), and vice versa; at least a second actuator (10) connected to the clamping devices (6, 7) and configured to perform a movement of reciprocal distancing of the clamping devices in a locking configuration with respect to said cutting section plane (4); means of inhibition (11) of the reciprocal moving away of the clamping devices active during the cutting advancement of the blade (5) through the roll (3); and activation means (12) of the second actuator (10) of the clamping devices (6, 7) configured to activate the reciprocal removal of the clamping devices immediately after the end of the roll cutting phase (3) performed by the blade (5).

Device for locking two adjacent sections (1, 2) of a roll of paper (3) placed on the sides of a cutting section plane (4) defined by the movement of a cutting blade (5) of a cutting-off machine (M), comprising a pair of clamping devices (6, 7) configured to be able to assume an unlocking configuration with a locking configuration of respective sections (1, 2) of the roll (3); at least a first actuator (8) which can be operated on command to pass said clamping devices from the unlocking configuration to the locking configuration of the respective sections (1, 2), and vice versa; at least a second actuator (10) connected to the clamping devices (6, 7) and configured to perform a movement of reciprocal distancing of the clamping devices in a locking configuration with respect to said cutting section plane (4); means of inhibition (11) of the reciprocal moving away of the clamping devices active during the cutting advancement of the blade (5) through the roll (3); and activation means (12) of the second actuator (10) of the clamping devices (6, 7) configured to activate the reciprocal removal of the clamping devices immediately after the end of the roll cutting phase (3) performed by the blade (5).

A hand operated cutting tool (200) for pipes or tubes includes a housing (202). The housing (202) defining at least one first opening (204) to receive an object (210) to perform a first cutting action, and a second opening (206) which is adapted to perform a second cutting action. The first opening (204) includes a longitudinal axis (A-A1) and the second opening (206) include a longitudinal axis (X-X′). The longitudinal axis (A-A1) and the longitudinal axis (X-X′) include an angle (Z) therebetween that is unequal to 0 degree. And, one or more cutting blades (208, 502) are operatively coupled to the first opening (204) and the second opening (206). The one or more cutting blades (208) is arranged such that it is performing both the first cutting action and the second cutting action.

A shut-off system of the present invention includes a straight pipe made of a polyolefin-based material, and a knife gate, wherein: a semicircular arc-shaped first cutting blade is formed on a distal end side of the knife gate to cut open the straight pipe to form a slit-shaped opening; an arc band-shaped sealing portion is formed on a proximal end side of the knife gate to be in contact with cut surfaces of the straight pipe; the knife gate includes a pair of side edge portions that connect the first cutting blade and the sealing portion; the first cutting blade and the side edge portions bite into an inner circumference surface of the straight pipe along the inner circumference surface; the knife gate is formed in a flat plate shape having a first surface and a second surface, extending from the first cutting blade to the sealing portion and between the pair of side edge portions; the opening extends in a circumferential direction on the straight pipe; and the sealing portion extends from one end of the opening to the other end thereof, and extends from the inner circumference surface to an outermost surface, which is on an outermost side, of the straight pipe.