PURPOSE:To make it possible to effect air conditioning utilizing natural energy in summer, winter, daytime, nighttime, etc., by communicating a vent portion 16 of the room with the inlet of a heat storage tank via a changeover valve, and to derive underfloor cool air in an underfloor space to the room. CONSTITUTION:When an air outlet 3A is communicated with a vent portion RA and further a vent por...

PURPOSE:To prevent any deterioration of a lead storage battery which might be caused by defective contact between a plate and electrolyte when the battery is left after overdischarge by placing, either on the surface of a plate or in the interface between the plate and a separator, a compound the liquid-holding ability of which changes as pH changes, especially one having a higher liquid- holding ...

A package holder (13) for use in a creel (15) of a textile machine, comprises a tubular body part (19) adapted to fit onto a creel peg (12) and having a number, for example four, of spaced formations (24), which may be in the form of T-shapted slots, extending longitudinally of the outer surface (25). Retained in each slot (24) is a correspondingly shaped fin member (27) which extends radially out...

The invention relates to a device for separating a suspension into a coarse fraction and a fine fraction, containing a rotating stack of separator disks, to which the suspension is fed from an axial end of the annular flow chamber surrounding the stack of separating disks, while the coarse fraction is discharged through a flow channel at the other axial end of the annular flow chamber, the fine fr...

A solenoid valve includes an operating magnet which controls movement of an armature against the effect of a valve spring, which armature in turn controls the movement of a valve member connected with the armature by a sliding connection. The armature has a control member which can be introduced into a coil with an exciter winding. The coil is part of an electronic circuit provided for control of ...

This invention relates to apparatus for aligning groups of plates and separators in a group for use in an accumulator battery and can more broadly relate to general alignment apparatus. In one construction the alignment apparatus (19) has a table (20) which is mounted on a frame, which can be lifted by an hydraulic ram (21) and vibrated by a vertically acting low frequency vibrator (22) and a cycl...

Creel of a textile spinning machine, which consists of a plurality of work stations and in which each work station comprises at least one spinning can (5,6), from which the sliver (7,8) is unwound, a succession of guide pulleys (30-32) and a system (20) for drawing the sliver, characterised : - in that the successive guide pulleys (30-32) of the same work station are mounted on a plurality of para...

PCT No. PCT/NL89/00049 Sec. 371 Date Nov. 29, 1990 Sec. 102(e) Date Nov. 29, 1990 PCT Filed Jun. 15, 1989 PCT Pub. No. WO89/12540 PCT Pub. Date Dec. 28, 1989.A continuously conveyed tubular plastic foil is perforated by a laser beam which is focused by a mirror or lens on the perforation forming plane, lying at the focal point of the mirror or lens, of a tautly conveyed tubular plastic foil. For t...

PCT No. PCT/NL89/00049 Sec. 371 Date Nov. 29, 1990 Sec. 102(e) Date Nov. 29, 1990 PCT Filed Jun. 15, 1989 PCT Pub. No. WO89/12540 PCT Pub. Date Dec. 28, 1989.A continuously conveyed tubular plastic foil is perforated by a laser beam which is focused by a mirror or lens on the perforation forming plane, lying at the focal point of the mirror or lens, of a tautly conveyed tubular plastic foil. For t...

The utility model relates to a lead-acid accumulator which is mainly used as a power supply for automobiles. The existing polar plates for the accumulators are of single polarity and need to be connected in series in wall crossing mode, and the accumulator is small in size with low capacity. The utility model adopts a linkage of veneer bipolar property without crossing wall. Only two side plates i...

Porous electrodes for lead acid storage batteries without supporting plates or grids. The electrodes are porous, self-supporting, structurally integral and electrically continuous. Lead-acid batteries incorporating such electrodes exhibit improved performance characteristics as compared to conventional lead-acid batteries. The electrodes are made by forming a molten mixture of metal (e.g. lead) an...

Apparatus for inspecting the sealing surface (36) of a container finish (34) that includes a light source (42) positioned to direct light energy onto the container sealing surface as the container is held in stationary position and rotated about its central axis. A camera (48) that includes an array (80) of light sensitive elements (80a through 80n) is positioned and oriented with respect to the c...

Flexible foam is prepared using 1,1,1-trichloroethane as the sole or predominant auxiliary blowing agent.

A method producing a low-density flexible polyurethane foam comprising stirring a starting mixture containing a polyhydroxy compound, a polyisocyanate, a foaming agent and a catalyst to thereby foam the mixture, in which a foaming agent selected from the group consisting of water, formic acid and its salts is used in an amount of at least 10% by weight as water equivalent per 100 parts by weight o...

Spinnable dopes containing 10 to 25% by weight fiber-forming polymers being at least about 55% and less than about 80% para-aramid and at least about 20% and less than about 45% thermally consolidatable polymer in a common solvent and a process for making oriented, shaped articles of para-aramid/thermally-consolidatable polymer blends by orienting the dopes and removing the solvent.

Selected regional trunking systems are equipped with telephone interconnect capability and provided with local computers (106), which communicate with a national hub computer (110). At each selected trunking system, several IDs are reserved as "roaming IDs" to be temporarily assigned to roaming subscribers (112). When a subscriber determines that it has roamed into a new trunked system, it request...

The resins resulting from converting the phenol-formaldehyde type condensation products of dicyclopentadiene-phenol adducts optionally with selected aldehydes and ketones, to their corresponding vinylbenzyl ethers are an excellent matrix in which to embed fibers to produce a composite. Such resins, especially as a blend of materials with varying molecular weight distribution, are amorphous materia...