Apparatus for use in the production of a tube of organic thermoplastic polymeric material wherein the peripheral portions of the calibrating disc assembly and the seal that contact the wall of the tube comprises a liquid absorbent material; and a method of producing the above tube.

Apparatus for crushing swarf and like materials having a circuit for controlling the operation thereof which provides for operating the crusher for selected time durations in order to insure processing of a load of material, and including means for temporarily interrupting the operating cycle in response to any of a plurality of abnormal conditions and for shutting down the crusher if the abnormal conditions are not corrected within a predetermined time interval.

A method of weighing and an apparatus therefor, wherein articles varying in unit weight are continuously weighed by a single weighing machine to classify them into three ranks, one for articles having error weights outside the allowable error limits, another for articles having error weights plus-oriented inside the allowable error limits and the other for articles having error weights minus-oriented inside the allowable error limits, said articles having error weights outside the allowable erro...

A roadway marker having a housing with a base for engagement with the surface of a roadway, and a reflective wall for reflecting light from vehicles on the roadway. The reflective wall has a central plane extending at an acute angle from the base and is integrally formed with a plurality of spherical reflector elements arranged in side by side relationship. Each of the spherical reflector elements has its center located on the central plane with the portions of the spherical reflector elements t...

Powder compositions for producing high resistivity resistors capable of withstanding high voltage surges without large changes in resistivity, said compositions comprising finely divided pyrochlore-related oxides, lead glasses and metal titanates. Alternately to comprising titanates, the compositions may comprise metal titanate precursors such as crystallizable glasses capable of forming metal titanates upon being heated or titanium oxide plus a glass which react to form metal titanates.

A tennis shoe and a sole therefor having a longer life than a conventional tennis shoe. The Sole has an upwardly extending side portion in a toe region and inside ball-of-the-foot region which is thicker at the junction of the side portion with the bottom portion of the sole than the junction of the upwardly extending side portion with the bottom portion along the remainder of the side boundary of the sole.

A slotted stud comprising two elongate, spaced-apart, parallel stud portions connected to one another at a point substantially intermediate their ends, and a partition formed by a plurality of such studs arranged in spaced-apart coplanar array and opposed panels mounted on respectively opposed stud portions, and in some embodiments, slotted plates respectively connected to aligned opposite ends of said studs, all of the above configurations contributing to or forming partitions with reduced soun...

The present invention relates to stress proteins and methods of modulating an individual's immune response. In particular, it relates to the use of such stress proteins in immune therapy and prophylaxis, which results in an induction or enhancement of an individual's immune response and as an immunotherapeutic agent which results in a decrease of an individual's immune response to his or her own cells. The present invention also relates to compositions comprising a stress protein joined to anoth...

An improved cage for rodents or the like that facilitates maintenance and care and is adapted for use in a battery, characterized by perforate floors, a plurality of spaced apart apertures in one of the accessible upstanding walls and a water bottle that has supports adapted to fit the spaced apart apertures, has a vacuum sealing lid that can be readily lifted from or snapped into place to allow quick refilling and provide the water only on demand to the interior of the cage. The battery of cage...

A wheeled attachment arm assembly, mountable alongside a power rotor tiller apparatus to which a rake or a blade may be fastened for preparing the surface of the ground, prior to tilling it. The assembly incorporates an arm which is threaded into and extends laterally from the side of a rotor tiller machine, with a hinged bar fastened to a collar fitted on the arm and extending forward of the arm. A shield is fastened to the hinged bar to project forward of the bar, with the shield riding on a w...