Abstract: A reusable mechanism is disclosed for coupling two robotic appendages, such that an unintended force acting against a side of one of the appendages may decouple the appendages. The mechanism includes a revolved male dovetail mated to a revolved female dovetail. The mechanism may further include a channel within the male dovetail and a detent that inhibits rotation of the male dovetail in relation to the female dovetail.

Abstract: A reusable mechanism is disclosed for coupling two robotic appendages, such that an unintended force acting against a side of one of the appendages may decouple the appendages. The mechanism includes a revolved male dovetail mated to a revolved female dovetail. The mechanism may further include a channel within the male dovetail and a detent that inhibits rotation of the male dovetail in relation to the female dovetail.

Abstract: Methods, systems, and apparatus, for controlling optical transmission of a lens of a camera. A method includes obtaining a first image from a camera, determining that the first image does not satisfy an image requirement, in response to determining that the first image does not satisfy an image requirement, increasing an optical transmission of a lens of the camera, and, obtaining a second image with the camera while the optical transmission of the lens of the camera is increased.

Abstract: Methods, systems, and apparatus, for controlling optical transmission of a lens of a camera. A method includes obtaining a first image from a camera, determining that the first image does not satisfy an image requirement, in response to determining that the first image does not satisfy an image requirement, increasing an optical transmission of a lens of the camera, and, obtaining a second image with the camera while the optical transmission of the lens of the camera is increased.

Abstract: A reusable mechanism is disclosed for coupling two robotic appendages, such that an unintended force acting against a side of one of the appendages may decouple the appendages. The mechanism includes a revolved male dovetail mated to a revolved female dovetail. The mechanism may further include a channel within the male dovetail and a detent that inhibits rotation of the male dovetail in relation to the female dovetail.

Abstract: Methods, systems, and apparatus, for controlling optical transmission of a lens of a camera. A method includes obtaining a first image from a camera, determining that the first image does not satisfy an image requirement, in response to determining that the first image does not satisfy an image requirement, increasing an optical transmission of a lens of the camera, and, obtaining a second image with the camera while the optical transmission of the lens of the camera is increased.

Abstract: A reusable mechanism is disclosed for coupling two robotic appendages, such that an unintended force acting against a side of one of the appendages may decouple the appendages. The mechanism includes a revolved male dovetail mated to a revolved female dovetail. The mechanism may further include a channel within the male dovetail and a detent that inhibits rotation of the male dovetail in relation to the female dovetail.

Abstract: A blade for a hedge trimmer comprises a plurality of cutting teeth, each tooth having a longitudinal axis extending laterally away from the long axis of the blade, each cutting tooth comprising a root and a tip and opposing sides extending between the root and the tip, characterised in that at least one of the cutting teeth comprises a special tooth which is sharpened along at least one flank to form a cutting edge which extends to the free end of the tooth, and further in which the free end of the special tooth includes a connecting edge which extends from one flank of the tooth to the other and at least one part of which is inclined at an angle of between 4 degrees and 20 degrees relative to the long axis of the blade.

Abstract: A blade 1 for a hedge trimmer having a long axis and comprising a plurality of cutting teeth, each tooth having a longitudinal axis extending laterally away from the long axis of the blade 1, each cutting tooth comprising a root and a tip and opposing sides extending between the root and the tip, characterised in that at least one of the cutting teeth comprises a special tooth which is sharpened along at least one side to form a cutting edge, in which a first portion of the cutting edge is bevelled such that a tangent line to the first portion is inclined at an angle of between 1 degrees and 6 degrees relative to the longitudinal axis of the tooth, and a second portion of the cutting edge closer to the tip of the tooth than the first portion and which is bevelled such that a tangent line to the second portion is inclined at an angle relative to the longitudinal axis of the tooth of between 8 degrees and 25 degrees.

Abstract: A powered oscillating hand tool includes a drive unit having an electric motor and a drive shaft; a bearing eccentrically mounted on the drive shaft and located radially eccentrically relative to the drive shaft; a carrier plate mounted on the bearing and a platen for mounting on the carrier plate. The carrier plate is provided with a first engagement means and the platen is provided with second engagement means to engage with the first engagement means by rotation of the platen relative to the carrier plate. The first and second engagement means together comprise a bayonet fitting.

Abstract: A powered oscillating hand tool includes a drive unit having an electric motor and a drive shaft; a bearing eccentrically mounted on the drive shaft and located radially eccentrically relative to the drive shaft; a carrier plate mounted on the bearing and a platen for mounting on the carrier plate. The carrier plate is provided with a first engagement means and the platen is provided with second engagement means to engage with the first engagement means by rotation of the platen relative to the carrier plate. The first and second engagement means together comprise a bayonet fitting.