Abstract: In curling the hair, strands of hair are wound round an apertured cylindrical roller and secured thereon until set. For securing the wound strands, an arm mounted on a slider within the roller is movable from an axial withdrawn position in which it is clear of the wound hair, to a holding position in which it overlies and holds the hair against the roller. The arm can be moved to a stored condition within the roller. A preferred embodiment has a spring-loaded clip operable by grasping handle portions between finger and thumb.

Abstract: An arrangement for producing or showing distance lapse motion pictures in coordination with a bicycle through mechanical or electrical system operated in accordance with the speed at which the bicycle or exercise bicycle by a user thereof.

Abstract: In an endless belt sanding tool, drive is imparted to the endless belt by a drive roller contacting the outer sanded face of the belt at a part thereof intermediate two thrust rollers. The tool may have an integral motor, or be adapted for drive from an external source such as an electric drill. A preferred embodiment has the belt and its support and thrust means on a portion of a tool body which is separable from the remainder of the tool body carrying the driving roller. Step adjustment or spring-loading may be provided to tension the belt. A speed-change is advantageously included in coupling means to the drive roller. The body may include an extension pivotable with respect to the remainder, for positioning the belt in a non-linear path. The body may include a resilient backing plate for the belt. A plurality of discrete belts may be arranged in a bunch, with provision for maintaining tension in the remainder whenever a worn belt is removed.

Abstract: A device mountable between the carburetor and intake manifold of an internal combustion engine through which the air-fuel mixture from the carburetor passes and including superposed wire screens with balls therebetween which creates a whirling mass of a highly volatile vapor of said mixture entering the manifold to cause a maximum combustion of said mixture in the engine cylinders.

Abstract: A band reel device for safety belts for vehicles provided with a locking mechanism which becomes activated when the safety belt connected to the reel is rapidly pulled out from the reel and an adjustably mounted body of inertia operatively connected to the locking mechanism for actuating the locking mechanism when there is an abnormal change of movement of the vehicle carrying the band reel device.