A bundle breaker includes upstream and downstream breaking supports, platens over the breaking supports and actuators for moving the platens toward and away from the breaking supports. Each of the platens includes a plurality of air bladders each having a bottom contact surface facing one of the breaking supports. The actuators move the platens to selectively clamp a log between the bottom contact surfaces of the air bladders and the breaking supports. A third actuator shifts an input end of the downstream breaking support relative to an output end of the upstream breaking support from a first position to a second position to break a first portion of the log from a second portion of the log.

A method where a propeller is set into locomotion relative to a medium at least partially surrounding the propeller. An actuator induces a rotation of the propeller relative to the medium and about a rotational axis of the propeller, and the propeller converts its rotational movement into locomotion relative to the medium. The aspect ratio of at least one cross-section of the propeller is three or more. Also a helical or modifiedly helical propeller for converting rotational movement of the propeller into locomotion of the propeller relative to a medium at least partially surrounding the propeller, where the aspect ratio of at least one cross section of the propeller is three or more. And a method of producing a propeller, including the step of providing a plate extending along the helical axis, where the aspect ratio of at least one cross section of the plate is three or more.

This document describes techniques, apparatuses, and systems for severing a cable tie with a rounded cut. Using a cable tie severing tool, a cable tie may be looped around an object and a tail portion received through a nosepiece assembly. A head of the cable tie may be aligned using an alignment indicator to ensure a rounded cut of the serrated portion of the cable tie at a finite distance from the head portion of the cable tie. A blade member may be displaced to sever the serrated portion of the cable tie and produce a rounded cut free of sharp edges. In this manner, the likelihood of abrasive damage from contacting the rounded cut may be reduced.

In one embodiment, systems and methods include using an ultrasonic cutter tool to cut a seal. The system comprises an ultrasonic cutter tool disposed onto a railing system coupled to a platform, wherein the ultrasonic cutter tool is configured to translate along the railing system. The system further comprises a power source electrically coupled to the ultrasonic cutter tool, and an alignment mold disposed parallel to the railing system and offset by a distance. The system further comprises one or more roller bearing carriages coupled to the railing system, wherein each of the one or more roller bearing carriages comprises a set of roller bearings, wherein each set of roller bearings is disposed over the alignment mold, wherein each set of roller bearings is configured to translate along the alignment mold as each of the one or more roller bearing carriages translates along the railing system.

A system for cutting medical tubing sourced from a spool of tubing uses two actuator groups that each reciprocate along a respective track, which are parallel to each other. Each actuator group has a clamp and a cutting tool which have an operative position along a common axis. The tubing is fed along the common axis to be operated on by the actuator groups. A forward actuator group clamps onto the tubing and is then moved along its track, pulling the tubing. A rearward actuator group then clamps onto the tubing and cuts the tubing. While still clamped onto the tubing, the rearward actuator group is moved forward, pulling more tubing, and the actuator group that was forward is moved to the rearward position and the process is repeated iteratively to produce tubing sections cut to the desired length. The tubing is pressurized and kept under pressure to straighten the tubing.

A stamping machine for labels and covers includes a servomotor as a driving element. The servomotor can be directly or indirectly connected to a spindle which causes the stamp to move forward in a linear manner.

A cutting device includes an upper cutting portion and a lower cutting portion. The upper cutting portion includes an upper head portion movable in a first and a second direction, an upper holder connected to the upper head portion, and an upper cutting wheel connected to the upper holder. The upper holder includes an upper body portion connected to the upper head portion, an upper cutting wheel fixing portion rotatable with respect to the upper body portion, and an upper magnetic portion disposed on sides of the upper cutting wheel fixing portion including a magnetic substance. The lower cutting portion includes a lower head portion movable in the first and the second direction, a lower holder connected to the lower head portion, a lower cutting wheel connected to the lower holder, and an upper holder rotation inducing portion connected to the lower head portion including a magnetic substance.

A cutting device and a method for cutting paper are provided. The cutting device includes a cutting blade and a counter-member. The cutting device is further provided with a first guide and a second guide extending in or parallel to the driving direction for linearly guiding a holder that holds the cutting blade. Each of the guides includes a guide body. The guide bodies of the first guide and the second guide, when released, are arranged to be rotatable relative to the frame about a first adjustment axis and a second adjustment axis, respectively. Each guide body includes an eccentric section that moves eccentrically about the respective adjustment axis and that is arranged to convert the rotational movement of the guides about the respective adjustment axes into a linear movement of the holder in the adjustment direction.

A system and method for shaped cutting of washable sanitary absorbent articles having a back layer of washable fabric and the like is provided, wherein the back layer is fed longitudinally along a travel direction to a cutting unit including at least one cutting tool movable transversally to the travel direction so as to cut at least one longitudinal side edge of the back layer, in combination with a longitudinal displacement thereof, along a curved profile.

A cutting device includes a tool drive, cutting tool having first and second connecting parts respectively connected to first and second followers, and guiding device, including a first guiding unit with first and second guiding modules. The first guiding module includes first and second guiding wheels, which are held each by related bearing devices rotatable in a guiding plane, peripherally adjacent to each other at a first transfer position, include an outwardly open receiving opening suitable for receiving the first follower, rotatable by the tool drive in opposite directions with the same angular velocity, and arranged so that their receiving openings lie opposite one another at the first transfer position after each revolution, so that the first follower is transferable alternately from one receiving opening into the other at the first transfer position and is further guidable alternately along the periphery of the first or second guiding wheel.