Abstract: A fishing device for preventing a line from breaking when a fish has been hooked. The fishing device comprises a hollow cylinder in which a piston is slidably mounted. The piston is provided on one of its flat surfaces with a rod that extends out of the cylinder. The free end of the rod is formed with an eyelet. A tab with a similar eyelet is provided at the opposite end of the cylinder. On its other flat surface, the piston is provided with a pair of elastic jaws that engage the end of a retaining stud that is solid with the cylinder. A coil spring is fitted around the piston rod and bears at one end on the cylinder and at its other end on the piston. To use the fishing device, the adjacent ends of two line portions are connected to the eyelets. When the jaws are engaged on the stud, the piston is solid with the cylinder and a fish may be struck as if the line were uninterrupted. Once hooked, a fish can exert considerable pulls on the line.

Abstract: A machine is provided for grinding small parts in which a rigid frame carries a rotatable flat grinding surface, a cam rest with a flat surface parallel to the fat grinding surface and a mobile carriage movable in a direction perpendicular to the flat grinding surface, a rotary guide cam and a workpiece are carried by said carriage and are rotatable in synchronism, a first control device for movement of said carriage and a second control device for regulating the pressure with which the workpiece is applied to the grinding surface are mounted on said frame and the first and second control devices are embodied in a single unit.