Abstract: Apparatus for and method of extruding a metal pipe having a substantially uniform inner diameter. The forward and rearward end sections of the pipe are thicker than the middle section of the pipe. A heated metal billet having a cylindrical longitudinal bore is inserted into the rear opening of a cylindrical bore of a stationary container. A two-part removable inner die is located within the bore of the container adjacent the forward end of the container and an outer die is located outside of the container adjacent the front end of the container. The inner die has a relatively small diameter cylindrical bore. The outer die has a relatively large diameter cylindrical bore. The billet is moved along a central longitudinal axis within the bore of the container by a press which includes a circular forward pressing surface and a mandrel extending forwardly from the pressing surface toward the billet.

Abstract: A log splitter is disclosed as employing a fluid driven hammer adapted to impart successive log splitting movements to a log splitting element, a manually operable parallelogram linkage for supporting the hammer for vertical movement relative to an upper position for removably positioning the splitting element in engagement with a log to be split, and a control for controlling operation of the hammer.

Abstract: Apparatus for and method of extruding a metal pipe having a uniform inner diameter. The forward and rearward end sections of the pipe are thicker than the middle section of the pipe. A heated metal billet having a cylindrical longitudinal bore is inserted into the rear opening of a cylindrical bore of a stationary container. A two-part removable inner die is located within the bore of the container and an outer die is located outside of the container. The billet is moved within by a press which includes a mandrel extending forwardly from a pressing surface toward the billet. The mandrel has a cylindrical relatively large diameter rearward portion, a cylindrical relatively small diameter middle portion and a frusto conical forward portion which tapers outwardly in the forward direction from the diameter of the middle portion to the diameter of the forward portion.

Abstract: Apparatus for and method of extruding a metal pipe having a uniform inner diameter, and forward and rearward end sections which are thicker than the middle section of the pipe. A metal billet having a bore is inserted into an open ended cylindrical bore of a stationary container. The billet is moved axially within the bore of the container by a press which includes a pressing surface and a mandrel extending forwardly from the pressing surface through the bore of toward the billet. The mandrel has a cylindrical large diameter rearward portion, a cylindrical small diameter middle portion and a forwardly and outwardly tapering forward portion. Metal from the billet is forced through the small diameter bore of a two part removable first die around the middle portion of the mandrel by moving the press forwardly for a first distance to form a preliminary forward end section of pipe.