A gyratory crusher having a frame (1) and in the frame an eccentric shaft (3) rotatable around a vertical shaft in the frame, with a vertical inclined hole in it. A main shaft (4) is supported by bearings in the hold of the eccentric shaft, a supporting cone (5) being attached to the upper end of said main shaft (4). Around the main shaft, below the supporting cone (5) there is a sealing cover (10) covering the eccentric shaft. The upper edge (12) of the sealing cover (10) is sealed against the ...

An object, such as a dried and pressed flower, is to be mounted between a transparent electrostatic vinyl sheet and a cover film with the object being tightly sealed therebetween. The electrical properties of the electrostatic vinyl film are to permit the resulting sealed ornament to be applied onto a clean, flat, non-porous surface with the static electricity of the electrostatic vinyl film fixing the sealed ornament in position.

A container of heat-sealable plastic material, such as PVC, is made by folding a sheet of that material into V-shape and doubling back the vertex of the "V" to form a W-shaped profile, the infolded section or gore of the "W" being sealed except at one or two locations where rigid guide sleeves are inserted and are tightly gripped by the surrounding sheet portions. Each guide sleeve accommodates a hollow plunger for the withdrawal or introduction of fluids, the plunger having a pointed tip design...

A caster utilizing mounting structure, leg structure rotatably mounted on the mounting structure, and a wheel rotatably mounted upon the legs wherein the relatively movable parts of the caster are sealed against the entrance of foreign matter by means of a resilient synthetic material cover. In the method of constructing a caster in accord with the invention components thereof are coated with the coating material, such as by dipping, and the coating material, after curing, is severed at the desi...

A sealed pouch made of a laminated sheet comprising a plurality of synthetic resin films, or comprising a synthetic resin film and a layer of other material than the synthetic resin film, such as an aluminum foil, has a plurality of sides. At least one of the sides has an edge portion coated with a coating layer containing granules of ceramic, metal or the like.

Sealed containers comprising in combination a cylindrical packing member and a container having a closing means. The cylindrical packing member is made from a heat-shrinkable synthetic resin and has printed matter appearing thereon at the required location. The packing member also contains a circumferential tearing line, preferably perforated, at a location above the printed matter. A heat-sensitive adhesive is applied on the inner surface of the packing member at a location below the tearing li...

A vessel such as an instrument case, for example, having an opening for access to the interior of the vessel and a closure for the opening adapted to have stressed self-sealing engagement with each other augmented by pressure differentials across the seal to close the vessel against differences in internal and external pressure.

A sealed ball or roller bearing which comprises a pair of seal plates interposed between an outer and inner race, the inner race having a seal groove of a substantially U- or L-shaped cross section formed in the outer surface thereof, each of the seal plates having its outer edge hermetically secured to the outer race, the inner edge portion of the seal plate being formed with an inner seal lip facing the seal groove of the inner race in spaced relationship therewith to provide a reduced clearan...

Bearing (14) of the type having a full complement of rollers incorporating an inner race ring (13), an outer race ring (14) and a row of rollers (15) provided between these rings, said rollers being axially moveable relative to the rings. The space between inner race ring (13) and outer race ring (14) is sealed off by means of sealing members (18) arranged on one hand to provide a sealing effect by frictional engagement against the inner race ring as well as against the outer race ring, and on t...

A sealed encoder for measuring a relative position of two objects movable relative to each other and including a housing connected with one of the objects, an entrain member, which is located in a slot formed in the housing, for supporting a position-measuring device and connected with another of the objects, and resilient strip-shaped sealing elements formed of an electroconductive non-metallic material.