In a circular loom having two or more shuttles, at least one shuttle is provided with a tip portion which is upwardly or downwardly deviated out of the center line of the shuttle, and some warps are kept on the warp line during shedding motions. Said warps are moved downwardly or upwardly by the deviated tip portion of the shuttle. Some healds Hb, Hc are provided with elongate mails such that in o...

PURPOSE:To prevent capacity reduction caused by deep discharge and overcharge using a Pb-Ag-Cu-Bi alloy of a specific component ratio for the positive electrode grid of a sealed lead storage battery. CONSTITUTION:A positive electrode plate is consisted of an alloy grid composed of Pb-Ag-Cu-Bi produced by adding 0.01-1.0wt% silver, 0.001-0.01wt% copper and 0.001-0.005wt% bismuth to lead and filled ...

The permanent-magnet armature of a reciprocating linear motor is returned to its starting position by magnetic biasing means when the field coil is deenergized. One linear motor utilizes the magnetic attraction between a washer or washers (62, 64) formed from a ferrous material, e.g., steel, and a magnetic pole or poles of an armature (26) for automatically returning the armature to is original po...

A container for the continuous centrifugal separation of platelets component in blood, having a first and a second closed chambers adaptable to be rotated around a rotation axis. Whole blood is continuously introduced into the first chamber. Platelet-rich plasma being obtained as supernatant in the first chamber being discharged through a first outlet port opened at a relatively short distance fro...

An apparatus for producing a plastic container having occludable closure strips comprises a source for the closure strips, a rotatable casting cylinder having a pair of spaced apart circumferential grooves defined therein, a mechanism for advancing the closure strips to the casting cylinder, an extruder for casting a plastic film onto the casting cylinder so that it becomes connected to base porti...

A rotary bit for oil and gas well drilling has cutting elements (1) set in a hard facing material (3) which in turn is supported by a sintered steel section (4) between the hard facing and the steel base (7) of the bit.

The invention provides an electric lead-acid storage battery of maintenanceless type, preservable charge with only the acid absorbed in the plates and separators. The battery is characterized in that the grids are made of an alloy of lead free of antimony, particularly lead-calcium-tin, and carry active material provided by pastes containing organic inhibitors, such as ligninsulphonic acids, and i...

Thin, filled, drawn polyester films, single-layer or composite and comprising at least one filled outer layer which has a total roughness lower than 0.15 microns, this filled layer containing from 0.02 to 0.3% of a fine filler (titanium oxide etc) with a median diameter of lower than 0.5 microns and a volume shape factor greater than 0.08 and less than 0.02% of a coarse filler (calcium carbonate, ...

A process for preparing light-weight, insulating and semi-rigid or rigid elements, essentially comprises impregnating a porous supple material having an internal structure with preferentially open cells, with the desired quantity of a solution of a compound selected from the group comprising isocyanates, and having consequently in its formula at least a -NCO group, the material optionally having t...

A toe holder for safety ski bindings having a housing, an axle attached to the housing and perpendicular to the top surface of the ski, a sole engaging unit pivotally mounted to the axle and movable between a skiing and a releasing position, and a spring biasing the sole engaging unit towards its skiing position; the axle having a guide groove for urging the sole engaging unit upwards along its pi...