A scale for measuring the weight of articles being transported along the track of a conveyor system which is of the type in which each item to be weighed is supported on the track by means of a hook or the like and in which the hook is guided by a sliding and/or rolling means along a weight-meansuring element inserted in and axially aligned with the track at a weighing station. A load cell transducer supports the measuring element at each end thereof, and each load cell is preferably of the type...

A valve stem has a thickness of hardfaced material on its outer diameter in the area contacting the stem packing where the seal is formed which prevents corrosion, erosion and/or scratching of the valve stem, thereby preventing formation of leak paths. A valve packing comprises a vertically stacked array comprising alternating metal pressure rings and graphite seals.

Valve actuator for causing both rotation of a valve member and linear movement of said valve member.

A valve construction in the form of a "flex-finger" or flexible stem valve is provided for handling substances which are highly corrosive or very active chemically. The valve body, valve seats, a valve ball and flexible finger or flexible valve stem are all composed of chemically resistant material. The flexible stem has an outer end secured in the valve body against rotation with a fluid tight joint and an inner end for actuating the "ball". The flexible stem is composed of material which is su...

A drill stem especially adapted for use in a boring machine which drills upwardly, having pin and box joints on its respective ends, having a circumferential collar that is utilized for both vertical and rotational support of the drill stem section, and additionally having a spline connection on its lower end which is utilized for imparting rotating drive.

The extension of the handle-bar stem is provided with a transverse aperture forming a collar for receiving and supporting the handle-bar. A clamping lug which extends from the collar toward the vertical arm of the stem has an upper face which defines with a lower face of the extension a slot splitting the collar. The lug and the extension are provided with apertures for the passage of a clamping device. The extension also has an axial cavity which is extended by an opening formed in the collar. ...

A raise drill for enlarging a pilot hole into a larger diameter hole by disintegrating the earth formations surrounding the pilot hole is disclosed. The raise drill includes a main bit body having a plurality of cutters mounted thereon. The bit body is detachably secured to the drive stem to permit removal and replacement of the stem. The removable drive stem allows the raise bit to be transported through small drifts and helps extend the useful life of the raise bit. The drive stem extends thro...

Shredded tobacco lamina material and shredded stem material are mixed for use in cigarette making. A coarse intermixture of the materials first is formed and the mixture is metered and opened to form individual particles. The individual particles then are intermixed to form aggregates containing both lamina and stem material.

A high pressure apparatus for reducing metal rod to wire in one pass through a die by surrounding the rod with a medium under high hydrostatic pressure to maintain ductility of the metal to be formed; the die is supported against a frame member by a die stem having a central opening through which the wire passes to a winding reel. To prevent clogging of the die stem with pressure medium that passes through the die in small quantities, the die stem is heated to a temperature substantially above t...

A valve stem seal for an intake or exhaust valve in an internal combustion engine where the seal allows a metered amount of oil to run down the valve stem for lubrication of the stem in its valve guide. The seal has a cylindrical wall engaging the valve guide boss and an upper inwardly extendng flange provided with twin sealing lobes on the internal surface separated by an annular groove; the lobes and groove providing a pumping action for oil during reciprocation of the valve stem.