baber/WOPTO huggingface dataset:
Patent GB-1521476-A (GB)
Title: Solar heat-exchange apparatus
IPC: F24S90/00
Filed: 1975-10-30
Abstract: 1521476 Solar heating E C HALLIDAY 30 Oct 1975 [10 Dec 1974] 53490/74 Heading F4U  Solar energy extraction equipment comprises a circuit for the circulation of heat carrying liquid 14, the circuit having an absorption panel 20, a heat exchanger 42 for extracting heat from the circuit, a pump 34 and an opening 43 to atmosphere. The pump is arranged to draw liquid from the panel and urge it towards the opening 43, so that the liquid pressure in the panel is below atmospheric. As shown, the liquid flows downwardly through the panel, but may flow upwardly (Fig. 7, not shown) or horizontally. In the embodiment shown in Fig. 7, the opening 43 is replaced by an open tank (32). The space between the sheets forming the panel includes means for forming capillary flow through the panel.
Patent GB-1487326-A (GB)
Title: Brake application control devices
IPC: B60T13/12
Filed: 1973-11-22
Abstract: 1487326 Brake booster and control devices AUTOMOTIVE PRODUCTS Ltd 18 Nov 1974 [22 Nov 1973] 54255/73 Addition to 1432350 Heading F2F An improvement in or modification of the brake control device of Specification 1,432,350 has a barrier which separates the space between  the piston 16 and the valve spool 34 into two chambers 57, 66 one of which is bounded by the piston 16 and the other by the spool 34, and a passage 31 which connects the first port 29 to one chamber so that liquid can flow freely from the first port 29 to the one chamber and the first port 29 is in restricted communication with the other chamber via a space between rod 49 and a bush 64 allowing braking pressure to build up slowly. Actuation of the brake pedal moves a plunger 38 and hence spool 34 and is transmitted to piston 16 through a spring 52 and rod 49 cutting off communication between wheel cylinders and reservoir and placing a port 33 in communication with port 29 to supply liquid under pressure from an accumulator to the brake cylinders. Liquid pressure in an annular chamber 66 provides resistance to braking by acting on the end of spool 34 and providing "feel". In the event of pressure failure the pedal can operate the piston 16 via rods 48, 49.
Patent GB-1116918-A (GB)
Title: A process for the manufacture of benzdiaz[1,4]epine derivatives
IPC: C07D243/24
Filed: 1966-12-08
Abstract: Compounds of the general formula (I) <FORM:1116918/C2/1> (wherein R and R1 each represent a halogen atom or a nitro, trifluoromethyl or lower alkyl group, R2 represents a halogen atom, R3 represents a lower alkyl group and the broken lines denote optional substitutents) and their acid addition salts are prepared by reacting a 2-aminobenzophenone of the formula (II) <FORM:1116918/C2/2> with a diester of the formula (III) <FORM:1116918/C2/3> or a salt thereof, optionally followed by salt formation.  The lower alkyl groups contain 1-7 carbon atoms.  Compounds of the formula (I) and their salts are muscle relaxants, sedatives and anticonvulsants, and may be administered in the form of pharmaceutical preparations containing them together with a carrier.
Patent GB-1370752-A (GB)
Title: Flow controlling device
IPC: G05D7/01
Filed: 1972-11-30
Abstract: 1370752 Valves C A H M WASKOWSKY A K FLUGEL and P H HANGARTNER 30 Nov 1972 [30 Nov 1971] 55246/72 Heading F2V A valve for maintaining fluid flow at a desired rate irrespective of inlet pressure comprises a plate 1 with sealing disc 5 biased by a spring 9 against seat 44 and an adjusting arrangement attached to the plate which is constituted by a hollow cylinder 15 with two sharp-edge valve closure members 17, 19 which co-operate with valve seats 18, 20 respectively and which acts to throttle the fluid flow as the inlet pressure on the plate increases against the spring pressure. In a mixing regulator to give a desired ratio of mix (Fig. 3) the adjusting arrangement in one inlet is connected to a plate in the other inlet by a rod 49 and the spring 9 is dispensed with so that the desired flow rate through one inlet is controlled by the pressure at the other inlet and not by the spring 9 as in the first embodiment. The spring 50 acts only to enable the two plates to act as check valves. A flow dividing regulator (Fig. 4) contains two adjusting arrangements without springs and connected by a rod 60. The springs 59, as in the previous embodiment act to enable the plates to function as check valves. The amount of regulation in one outlet being determined by the pressure in the other outlet.
Patent GB-1308924-A (GB)
Title: Process for the recovery of solvent from an olefin polymerization reaction
IPC: C08F210/00
Filed: 1970-11-20
Abstract: 1308924 Recovering solvent in olefin polymerization ESSO RESEARCH & ENG CO 20 Nov 1970 [8 Dec 1969] 55340/70 Heading C3P In the copolymerization of ethylene with a C 3 -C 10  alpha olefin and optionally a non- conjugated diene, carried out in the presence of a catalyst and in an inert liquid diluent, the diluent is recovered by a process comprising the steps of: (a) flashing the effluent from reactor 11 with steam in flash drum 13 to form a flash overhead comprising diluent, unreacted olefins and heavy impurities (including any unreacted diene; (b) rectifying the flash overhead gas in rectifier 18 to give (i) rectifier overhead comprising olefins, diluent and water and (ii) rectifier bottoms comprising an aqueous phase, which is withdrawn at 28, and an organic phase, comprising diluent and heavy impurities, which passes to stripper 29; (c) stripping this organic phase to give bottoms containing most of the impurities and overhead containing the diluent; (d) returning this overhead by line 17 to the rectifier inlet; (e) condensing the rectifier overhead and collecting it in vessel 21 where it forms an aqueous phase, which is withdrawn at 22, and an organic phase, part of which is withdrawn while the remainder is returned to the rectifier as reflux. Uncondensed gases (olefins) are withdrawn at 26. The organic phase withdrawn from vessel 21, which comprises moist diluent and a small proportion of the higher olefin, may be dried in tower 37, dry bottoms being withdrawn at 39 and the moist overhead condensed and returned to vessel 21. The reactor effluent may be treated to inactivate and/or remove catalyst residues before entering flash drum 13. An alternative form of the apparatus is also described in which the rectifier and stripper are separate rather than being constructed in a single tower. Polymerization of ethylene, propylene and 5-ethylidenenorbornene in hexane using a VCl 4 /Et 2 AlCl catalyst is described in detail.
Patent GB-1452756-A (GB)
Title: Stabilised solutions of hydrolysed silicic acid esters
IPC: C09D183/02
Filed: 1973-11-29
Abstract: 1452756 Hydrolysed Silicic acid esters DYNAMIT NOBEL AG 29 Nov 1973 [1 Dec 1972] 55520/73 Heading C3T A stabilized aqueous solution of a partially condensed, partially hydrolysed C 1 -C 4  alkyl ester of silicic acid, which hydrolysate has an average number of Si atoms per molecule not greater than 10, contains as a stabilizer for increasing the shelf life of the hydrolysate, a cyclic ether, an ether alcohol, a carboxylic acid ester, a ketone, or a mixture thereof in an amount of 1-30% wt., with the proviso that the solution does not contain more than 12% wt. of the stabilizer, when the stabilizer is an etheralcohol, methylethylketone or acetone. Suitable cyclic ethers are 1,4- and 1,3-dioxane, trioxane and dioxolan. Suitable ether alcohols are compounds of the formula R<SP>1</SP>-O-R<SP>2</SP>-OH, in which R<SP>1</SP> is a C 1 -C 6  alkyl radical and R<SP>2</SP> is a C 1 -C 6  alkylene radical. Suitable carboxylic acid esters are ethyl acetate, butyl acetate, ethyl propionate and ethyleneglycol acetate. Suitable ketones have a chain length of up to 10 carbon atoms such as methylethylketone, methylisobutylketone, diethylketone, din-propylketone and diisobutylketone. The stabilizers can be added to the hydrolysed silicic acid ester preparation either by being introduced into the mixture of silicic acid ester, water, catalyst and solvent before it is hydrolysed, or by being mixed into the hydrolysate after hydrolysis. In the examples stabilized solutions are prepared by adding a mixture of aqueous HCl, ethanol and various stabilizers to ethyl polysilicate containing 40% wt. SiO 2  or to tetraethylorthosilicate. Uses.-Binders for zinc dust paints and shell moulds.
Patent GB-1165836-A (GB)
Title: Internal Combustion Engine Cylinder Heads
IPC: F02B3/06
Filed: 1967-12-06
Abstract: 1,165,836. Cylinder heads. WHITE MOTOR CORP. Dec.6, 1967 [Dec. 9, 1966], No.55545/67. Heading F1B. In an I.C. engine, a cylinder head covering a row of cylinders has an intake manifold extending longitudinally of the row including chambers 39 to 43 separated by compartments 46 accommodating valve actuating rods. One intake passage 28 for each cylinder extends from a manifold chamber adjacent one end of the compartment 46 accommodating the valve actuating rods for the cylinder and another intake passage 30 for the cylinder extends from a manifold chamber adjacent the other end of the compartment. The intake manifold cover 36 may be an aluminium alloy die casting. The intake passages 28, 30 have a progressively decreasing cross-sectional areas from the inlet ends. The rectangular crosssections (7, 14, Figs. 8 to 13, not shown), of the inlet ends of the intake passages (28, 30) have a depth approximately twice the width and the crosssections progressively change to a width approximately twice the depth at the outlet ends (1, 8). The planes of the intake passage outlets (1, 8) are at an angle of approximately 45 degrees to the plane of the base of the cylinder head. Bores 52, 52a in the head provide for attachment to the cylinder block. Cooling water is supplied through ports 55 and passages 56 to flow towards the axes of the cylinders. Each of the passages 56 extends around a fuel injector (58, Fig. 5, not shown), and the cooling water flows through an annular clearance (60) around the injector to spaces in the head.
Patent GB-1166279-A (GB)
Title: Forced Commutating Inverter.
IPC: H02M7/521
Filed: 1966-12-12
Abstract: 1,166,279. Inverting. WESTINGHOUSE ELECTRIC CORP. 12 Dec., 1966 [13 Jan., 1966], No. 55558/66. Heading H2F. [Also in Division H3] An inverter includes a commutating circuit for the main converter elements 14, 16, 18, 22, 24, 26 which comprises controlled rectifiers 64, 68, tapped inductors 31, 33, capacitors 52, 54 and diodes 36, 44, 74, 78 connected as shown in Fig. 1. Control signals 64A, 68A, 14A, 22A, 16A, 24A, 18A, 26A having the form shown in Fig. 2 are derived from a ring counter, Fig. 3 (not shown), and are fed to a gating circuit, Fig. 4 (not shown), to feed bursts of high-frequency signals to the controlled rectifiers bearing corresponding reference numbers. At time TO, rectifier 68 fires momentarily to charge capacitor 52 and rectifiers 14, 18, 24 fire to energize the load ZA, ZB, ZC. At time T1, rectifier 64 fires, discharging capacitor 52 through the primary winding of autotransformer 32 to produce, in the secondary winding 31, a turn-off voltage for rectifiers 14, 18. At the same time capacitor 54 is charged through rectifier 64. After time T1 rectifier 14 is re-ignited by the continuation of its control signal 14A, and rectifier 26 is fired by the start of control signal 26A. The load is thus now energized via rectifiers 14, 24, 26. At time T2 rectifier 68 is again fired, to discharge capacitor 54, extinguishing rectifiers 24, 26 and to recharge capacitor 52. After time T2 the load becomes energized via rectifiers 14, 16, 26. The firing is thus sequentially stepped to produce a three-phase output as shown at EZA, EZB, EZC.
Patent GB-1327256-A (GB)
Title: Apparatus for indicating sweat concentration
IPC: A61B5/00
Filed: 1970-11-24
Abstract: 1327256 Electro-medical apparatus SHERWOOD MEDICAL INDUSTRIES Inc 24 Nov 1970 [28 Nov 1969] 55860/70 Heading G1N [Also in Division A5] The concentration of sodium chloride in a sweat sample is indicated directly by providing a signal which is proportional to the conductivity of the sweat sample, translating this signal into a second signal which is a non-linear function of the first signal, and applying this second signal to an indicator which is operated proportionally to the second signal to indicate concentration directly. As shown, sweat is collected in cup 25 containing a pair of electrodes and the cup is arranged in a circuit which includes a rectangular source of D.C. provided by a pair of zener diodes 74, 75, and a potentiometer 77 connected across an A.C. supply as shown, a full-wave rectifier bridge 84, and a resistor 90. The magnitude of current through resistor 90 is proportional to the conductivity of the sweat sample. A non- linear network of diodes 92, 93 is connected between one end of resistor 90 and one terminal of indicator 30, the other end of resistor 90 being connected directly to the other terminal of the indicator, and the indicator scale being graduated in concentration of sodium chloride. There is also shown an iontophoresis circuit 12 for inducing localized sweating in a patient. This includes a pair of pilocarpine iontophoresis electrodes 20, 21 which in use are energized by a D.C. source of fixed magnitude for a preset period of time. A switch 66 is provided so that the indicator can indicate the magnitude of this current in addition to sodium chloride concentration.
Patent GB-1224340-A (GB)
Title: Gluing apparatus for packaging machines
Inventor: DERDERIAN EDWARD JOHN
IPC: B65B51/02
Filed: 1968-11-25
Abstract: 1,224,340. Packaging. E. J. DERDERIAN. 25 Nov., 1968, No. 55903/68. Heading B8C. [Also in Division B2] A machine for sealing cartons having closing flaps which are pivotally movable between a closed sealing position and an open position includes means for receiving and maintaining the flaps at an angle with respect to the closed sealing positions thereof, which angle is in the range from 120 to 90 degrees, and means for applying glue to the side flaps as the flaps are maintained at said angle. As shown, the machine includes a package supporting and guide track system comprising a plate 13, rollers 14, table plate 15, lower and upper guide rails 16, 18, support plate 17, endless chain-driven crossflight bars 19, an end flap depressing plate 21, a rotatable flap tucker arm 22 and upper and lower plows 23 for folding side flaps 25, 26 of a box or case 27 back against the respective end flaps. Glue applying nozzles 69, fed with glue through conduits and controlled by solenoidoperated valves, are urged by torsion springs against felt pads 75 which extend into water containers 77. The nozzles are mounted on nut members 43a, 43b, 53a, 53b carried on screwed shafts 41, 51, the rotation of which causes the nozzles to move towards or away from each other; the shafts are mounted in nut members 39, 48 carried on vertical, screwed shafts 38, 47 which are rotatable to raise or lower the shafts 41, 51 and thereby the nozzles. After the guide rails 16, 18 and gluing devices have been adjusted to suit the dimensions of the box 27, the latter is advanced through the machine by a cross-flight 19 and guide rods 78a spread and unfold the side flaps 25, 26 which are directed between guide elements 61a, 61b, the leading elements of the side flaps then entering between the nozzles 69 and pads 75, whereby glue is applied to the flaps, after which the plows 23 operate to fold back the flaps against the respective end flaps. Adjustment of the machine to accommodate cartons of various sizes may be performed automatically by providing mechanical or electrical sensors controlling the operation of reversible motors coupled to the several shafts.
Patent GB-1176817-A (GB)
Title: Pharmaceutical Compositions
IPC: A61K31/075
Filed: 1967-12-08
Abstract: 1,176,817. Analeptic compositions. LABORATORI BIOCHIMICI FARMACEUTICI CAMILLO CORVI (S.R.L.). 8 Dec., 1967 [9 Dec., 1966], No. 55974/67. Heading A5B. [Also in Division C2] Pharmaceutical compositions comprise a pharmaceutical carrier or diluent .together with an active ingredient of substantially pure alphapinene oxide, substantially pure sobrerol or a mixture thereof. They may also contain other active ingredients such as antipyretics, antitussives, sedatives, antihistamines, cardiorespiratory analeptics and/or antibiotics and may be administered orally, by injection or inhaled. The compositions also may take the form of suppositories and be used in solution or suspensions in conventional liquefied propellants as "aerosols".
Patent GB-1495698-A (GB)
Title: Method of forming a building product
IPC: C04B28/34
Filed: 1973-12-04
Abstract: 1495698 Building product REDLAND ROOF TILES Ltd 4 March 1975 [4 Dec 1973] 56195/73 Heading C3N  A method of forming a coherent solid material suitable for use as or in a building product comprises mixing separated cerospheres defined as the material separated from fly ash or fuel ash with phosphoric acid as a binder and heating the mixture to a sufficiently high temperature for a sufficiently long period of time to cure the mixture to a coherent solid mass, the curing conditions being such as not to cause collapse of the cerospheres. The cerospheres may have a particle size of 50-200 microns and are preferably dried to a moisture content of less than 1% by weight before mixing with phosphoric acid. The binder is preferably orthophosphoric acid. The sequence of events used in one embodiment to make the coherent materials of the invention.
Patent GB-1360474-A (GB)
Title: Method and apparatus for treating waste water
IPC: C02F9/00
Filed: 1971-12-03
Abstract: 1360474 Filtering waste water ECODYNE CORP 3 Dec 1971 [14 Dec 1970] 56318/71 Heading B1D [Also in Division Cl]  A process for treating water containing suspended solids from a sanitary system comprises aerating the water, delivering the water to a screen with components of motion across and through the screen, controlling the flow of water and the components of motion thereof so that a layer or coating of solids builds up on the screen and is maintained thereon, which layer acts as a filter for water subsequently passing therethrough, storing said water after it has passed through the screen and recycling the water to a sanitary system. In the process the water may be treated with coagulant (e.g. polyamine) prior to reaching the screen, then pumped from the screen via a well, to a 3-stage paper filter, chlorinated and passed to a storage tank. The pumps may be controlled by level sensors in the wells. The apparatus for carrying out the process may comprise (Fig. 1) a tank 12 having an influent zone 16 with aerators 28 and an effluent zone 18 separated by screen 14 and pipe 30 for returning activated sludge from zone 18 to zone 16; or (Fig. 6) a tubular screen unit comprising a number of screen tubes 112 in a tube 102. The tubular screen unit may comprise tubes of rectangular cross-section (Fig. 7, not shown) or a number of concentric tubes (Fig. 8), tube 118 being impermeable to liquid so that water to be filtered is passed to the bore of tube 116 and to the annular space between tubes 118 and 120 and the filtered water is discharged via the annular spaces between tubes 116 and 118 and 120 and 102 respectively. The apparatus may comprise a tank in which are a number of stationary flat screens (Figs. 2, 3, not shown) rotating tubular screens (Fig. 9, not shown). The screens may be made of metal or plastics and may be of various weaves.
Patent GB-1374188-A (GB)
Title: Turbine flowmeter
IPC: G01F1/10
Filed: 1972-12-07
Abstract: 1374188 Turbine flowmeters ITT INDUSTRIES Inc 7 Dec 1972 [9 Dec 1971] 56483/72 Addition to 1309516 Heading F1F In a turbine flowmeter as in the parent Specification 1309516 at least one of the diffusers, either or both of which may be unlipped has a diameter greater than the rotor hub diameter.
Patent GB-1154740-A (GB)
Title: Improvements in or relating to Protective Helmets
IPC: A62B18/04
Filed: 1966-12-16
Abstract: 1,154,740. Protective helmet. PILKING- TON BROS. Ltd. and T. B. LEAMON. 30 Nov., 1967 [16 Dec., 1966], No. 56488/66. Heading A3V. A helmet for protection against heat radiation comprises a head casing 1 shaped to cover the upper region of a wearer's head and face and having an outer heat reflecting surface, mounted on a head frame of heat insulating material, which fits on the wearer's head to support the head casing in spaced relationship thereto and a viewing aperture closed by a transparent member 17 with an outer heat reflecting surface. The internal surface of the head casing is preferably polished and the casing has a chin-strap of heat insulating material to support the face covering portion 1a away from the face. The transparent member slides into a groove and may be backed by a wire mesh. The viewing aperture is protected by a member 18 which also serves as a handle for carrying the helmet. The head frame includes a head band which surrounds and engages the wearer's head and an inverted U-shaped strap secured to opposite sides of the head band to limit the penetration of the wearer's head. A cape accessory 23 may be fitted by means of hooks 24 and eyes 26 to cover the back of the neck and may be of aluminised fabric.
Patent GB-1365439-A (GB)
Title: Method of milling curved grooves
IPC: B23C3/28
Filed: 1972-12-07
Abstract: 1365439 Method of milling curved grooves GENERAL MOTORS CORP 7 Dec 1972 [7 Jan 1972] 56496/72 Heading B3K A method of simultaneously milling grooves in opposite sides of a workpiece 14, in which the grooves have a common centre line, each groove has a bottom and two parallel sides perpendicular to the groove bottom, the two sides having different radii of curvature relative to the common centre line, the method comprising: supporting a milling cutter 30 at each side of the workpiece for rotation about an axis 31 inclined to the common centre line, such that teeth on the cutter having their peripheral cutting edges inclined to the axis 31 will have parallel contact with the sides of the workpiece; rotating the cutters in opposite directions, moving the cutters relative to the workpiece until the peripheral cutting edges on the cutters cut the grooves to the required depth, and turning the workpiece about the common centre line of the grooves to effect simultaneous cutting of the length of the grooves. The milling cutter 30 for machining the grooves in the side faces of a rotor for a Wankel engine has axis of rotation 31 and radially-projecting, circumferentially spaced teeth 32, each tooth having a peripheral cutting edge 36 which lies on a conical surface whose vertex 38 lays on an extension of said axis. Each tooth has parallel, radially extending side cutting edges 42, 44. These cutting edges may be straight and perpendicular to the peripheral cutting edge or they may have a constant radius of curvature relative to a common point 22 laying on said axis. In operation the milling cutter is mounted at an angle # to line 49 so that cutting edges 36 are parallel to the surface to be machined and the side cutting edges 42, 44 are perpendicular thereto. The workpiece is turned about groove axis 27. Figs. 6, 7 (not shown) illustrate a machine having three cutting heads, whereby at each, grooves on both sides of a workpiece are machined, and three inspection heads. The workpieces are suitably indexed between stations.