A spun yarn splicing method wherein ends of both yarns untwisted and positioned in overlapping relationship within a yarn splicing hole are acted upon by a compressed fluid to effect an intended splicing of yarns. Prior to the untwisting operation of the yarn ends, the yarn ends are held and cut, and grasping of the yarn ends are released after the yarns are relaxed and the tension of the yarn is ...

A thread guide consists of a rod 1, preferably an extruded alumina ceramic rod, thick enough to accommodate in about half its thickness a thread-receiving lateral notch 2 extending obliquely to the axis of the rod and preferably having the notch base 3 profiled to provide a small area of contact for a thread. The rod may have a root end shaped, for mounting such as in the wall of a melt-spinning c...

An improved rotary centrifuge seal is disclosed of the type formed from a rotatable ring member (40) and a non-rotatable ring member (42) having a sealing face of each in contact to provide a dynamic seal between rotatable and stationary centrifuge elements. This improved seal is provided with means for entrapping solid particulate matter generated at areas of contact (44) and means for directing ...

1. Electrical lead accumulator with limited maintenance, comprising in a casing a group formed of positive and negative plates and separators, immersed in the electrolyte, a separator filling the space between a positive and a negative plate, said separator being constituted of a microporous material of unwoven fibres, characterized in that the separator is constituted by one or more layers, the u...

PURPOSE:To carry out multi-item analysis with respect to one specimen rapidly, by an electrode method wherein the pH, the oxygen partial pressure and the carbon dioxide partial pressure of a living body liquid are measured at first in the same tank by each measuring electrodes to be sent to the same electrolyte measuring tank where various kinds of electrolytes are measured with respect to the mea...

PURPOSE:To detect the approach angle to the boundary of traveling areas of a car so as to ensure the optimum steering control in accordance with the approach angle of the car, by providing copying sensors in parallel to each other at front left and right sides of the car with a prescribed space secured between them. CONSTITUTION:Copying sensors are set in parallel to each other at the front left a...

PURPOSE:To detect the approach angle of a car with satisfactory accuracy regardless of the approaching direction of the car, by setting copying sensors in parallel to each other with a prescribed space between them and adding another sensor at the front oblique position of both of above-mentioned copying sensors. CONSTITUTION:The approach angle of a car is detected by setting copying sensors in pa...

PURPOSE:To detect a prescribed boundary with discrimination of the degree of the approach angle of a car so as to ensure the optimum steering control, by setting copying sensors with a prescribed space between them so that a virtual line connecting both sensors forms a folded line. CONSTITUTION:Copying sensors are set with a prescribed space between them so that a virtual line connecting both sens...

PURPOSE:To make the quality uniform with a higher molding efficiency by providing each bead hold segment with a bead retaining segment in such a manner to be folded inside simultaneously with the start of bending by a tool head for bending back a ply. CONSTITUTION:An external part of ply 30 as wound on a tire molding drum 29 is bent and then, a bead 31 retained with each bead holding segment 22 an...

This invention concerns the manufacture of a layer of elastomeric material to form part of a pneumatic tire, and the manufacture of a reinforced elastomeric layer. According to the invention a layer of elastomeric material is formed as a progressive helical winding along a mandrel. The layer may be transferred in cylindrical form to a tire carcass building former to constitute an inner lining for ...

An electronic control system for a motor vehicle friction clutch and which has an electrical reference signal generator, an engine speed sensor and signal means, and a throttle position sensor which produces a signal indicative of throttle opening. The throttle signal is combined with the engine speed signal to form a modified engine speed signal and a comparator receives the modified engine speed...

An electronic control system for a motor vehicle friction clutch and which has an engine speed sensor, a reference signal generator, and a clutch actuator responsive to an error signal E derived from engine speed and reference signals V1 and VR respectively. The error signal E is fed into an integrator having two operation modes, dependent upon whether a capacitor in the integrator circuit bypasse...

Certain phenolic cellular materials of low thermal conductivity can be produced by having in the cells of the cellular material a synergistic mixture of trichlorofluoromethane and 1,1,2-trichloro-1,2,2-trifluoro-ethane in a molar ratio of 1:20 to 20:1.

A power drive system for controlling the transmission of power from a prime mover such as a diesel engine (40) to a load such as the epicyclic transmission (50) of a track-laying vehicle comprises an hydraulically operable multiple dry-plate clutch (20), an electro-hydraulic valve (64) connected to operate the clutch, and a microprocessor control system (60). The microprocessor responds to the thr...

To increase the density of the sorbent, which increases the possibilities to use the sorbent outdoors, the hardened foamed urea formaldehyde material is comminuted with preserved moisture contents and is packed in hermetically sealed containers or bags.

A drilling orientation well tool is described in which variables of interest (e.g. tool heading, inclination and orientation) are measured and each encoded into a coarse part and a fine part. The encoded information is transmitted to the surface as mud pressure pulses (603-608). The pressure pulses are produced by varying the area of a mud flow passage through the tool. Power for controlling the a...

A telemetry sub 1 for a drill string 2, 3 comprises upper and lower portions 6 and 7 electrically insulated from one another by an insulator 8. The sub 1 incorporates a transformer 12 having its secondary connected between the upper portion 6 and the lower portion 7. In operation a measurement data signal in the form of pulses is supplied to the primary of the transformer 12 by suitable electronic...

In apparatus for producing metal powder by rapid solidification of molten metal particles flung into a quenching chamber from a rotating disk through vertical zones of cooling fluid, improved cooling fluid flow, improved operating efficiency and low pressure losses are provided by having the cooling fluid introduced into the quenching chamber via a plurality of cylindrical tubes each having an inl...