baber/WOPTO huggingface dataset:
Patent GB-1312539-A (GB)
Title: Meat injection tenderization apparatus
IPC: A22C9/00
Filed: 1971-11-03
Abstract: 1312539 Tenderising meat BAXTER LABORATORIES Inc 3 Nov 1971 [10 Nov 1970] 50997/71 Heading A2E A hand - operated air - powered injection apparatus for tenderising meat comprises a manifold 14 for receiving and dispensing enzyme solution, a manually actuated valve 43 for receiving and dispensing pressurised air, a cylinder 13, having an upper chamber 31 for receiving enzyme solution and communicating with the manifold 14, and an adjacent lower chamber 32 for receiving pressurised air via valve -43, there being a piston within said cylinder having a reciprocal motion for receiving and dispensing the air and solution, a number of hollow injection needles 16 communicating with the manifold and housed in a needle carrier 17 having a cam 19 and a rigid member 18 adapted for upward and downward motion synchronous with the corresponding motion of the piston, a first valve 42 between the cylinder and manifold for controlling the flow of solution through the manifold, a second valve 45 actuated by the cam between the valve 43 and the air source for alternately shifting the flow of air in the cylinder and causing upward and downward motion of the piston and needle carrier and communicating with the first valve 42 to actuate the flow of solution therethrough. The needles may be biased by means of spring 39 to permit them to retract if a bone 41 is struck.
Patent GB-1449652-A (GB)
Title: Method of fabricating an electrical superconduct9ve winding
IPC: H02K15/12
Filed: 1973-11-05
Abstract: 1449652 Making superconductive windings WESTINGHOUSE ELECTRIC CORP 5 Nov 1973 [16 Nov 1972] 51202/73 Heading B3A A method of fabricating an electrical superconductive winding 11 in a slotted structure includes forming a plurality of superconductive filaments 15 into a single strand, encasing the strand in a normally conductive material to form a wire 13, insulating the wire, covering the wire wire with a thermally responsive bonding material 21, forming a plurality of such wires into a composite cable, placing a desired number of coil turns of the cable in the slot and compressing the coil turns by a fluid pressurizing material 27 at a pressure sufficient to cause the bonding material 21 of adjacent wires to merge without filling the interstices among the wires, hardening the material 27 to keep the coils compressed and heating the structure to cure the bonding material 21 thereby securing the coil turns. The slotted structure may be a dynamoelectrical machine rotor or stator or an electromagnet. The wires 13 are comprised of niobium-titanium filaments 15, which are enclosed in a copper sheath 17 surrounded by an insulating layer 19, preferably of phenolic modified polyvinyl formal, and the bonding material 21 is an epoxy resin. The winding 11 is placed in a rotor slot, at the bottom of which is located a collapsible tube 25, and it is secured by a slot wedge 29. The pressurizing material 27 is forced into the tube, compressing the winding but leaving interstices 31 for the passage of a cryogenic refrigerant.
Patent GB-1199086-A (GB)
Title: Retrivable Well Packer
Inventor: YOUNG DAVID E
IPC: E21B33/129
Filed: 1968-10-29
Abstract: 1,199,086. Well packers. SCHLUMBERGER TECHNOLOGY CORP. 29 Oct., 1968, No. 51206/68. Heading E1F. A well packer comprises a mandrel 11, a hollow tubular body 23 slidably positioned on the mandrel, packing means 28, anchor means (36) below the packing means, fluid by-pass passage 72 extending along the mandrel and communicating with the well bore above, at 74, and below the packing means, valve means 79 on the mandrel and engageable with a valve seat 75 on the body 23 to close the passage, a piston 109 connected to the mandrel and operative in response to the tubing pressure - i.e. the pressure below the packing means - exceeding the annulus pressure - i.e. the pressure above the packing means -to exert a force on the mandrel to oppose the force thereon of this pressure difference, and a piston 112 operative in response to the annulus pressure exceeding the tubing pressure to exert force on the mandrel to counterbalance the force thereon exerted by the pressure difference. The piston 109 is slidable within the body 23 and has the annulus pressure applied to the bottom surface through openings 74 in the body, and the tubing pressure applied to the top surface thereof through bypass passage 72, passageway 101 and bore 116. The piston 112 has the annulus pressure applied to the top surface thereof and the tubing pressure applied to the bottom surface. Accordingly when the annulus pressure exceeds the tubing pressure, piston 112 bears against piston 109 or as shown, or alternatively against a shoulder on the mandrel with the effective difference D in area between the two pistons being chosen to be equal to .the effective horizontal cross-sectional area of the mandrel on which the annulus pressure acts so that there is no net force on the mandrel. Above piston 112 slips are provided and are moved outwardly to engage the casing P by another double piston when the tubing pressure through passageway 101 exceeds the annulus pressure. Beneath the packer the tubular body 23 is jayed to the mandrel and has drag blocks which on un-jaying prevents the bottom portion moving downwardly with the mandrel so that the anchor means (36) can be set, and the tubing string weight applied to the packing means to set the packer.
Patent GB-1157915-A (GB)
Title: Improvements in Electro-Hydraulic Parallel Motion Means for Drill Boom Supported Rock Drilling Apparatus
IPC: E21B15/04
Filed: 1967-11-13
Abstract: 1,157,915. Rock drills. ATLAS COPCO A.B. 13 Nov., 1967 [14 Nov., 1966], No. 51449/67. Heading B3C. [Also in Division G3] In a rock drill 22 the difference between angles A 12 , A 13 , Fig. 1, is maintained at a constant value, and the difference between angles A 16 , A 18 , Fig. 2, is also maintained at a constant value during elevation or lateral adjustment of the drill. Drill 22 is movable along a guide 20 by a lead-screw driven by a motor 23. Guide 20 is pivotable about an axle 13 on a boom 11, by an hydraulic ram 25, and about an axle 18 by an hydraulic ram 49. Jib boom 11 is pivotable about an axle 12 by an hydraulic ram 24, and about an axle 16 by an hydraulic ram 48. A potentiometer, or digital capacitive, or inductive angle-sensing means, i.e. synchro or resolver synchro R 12 , R 13 , R 16 , R 18 , is located in each axle 12, 13, 16, 18, and a differential resolver synchro DRH or DRS is connected between resolver synchros R 12 , R 13  and R 16 , R 18 , respectively. In operation, angle A 12  is changed by actuating a manually controlled throttle valve T 24 , so that ram 24 pivots boom 11. The angle A 12  is sensed by synchro R 12  and the orientation of the electromagnetic field of the stator windings in R 12  changes, so as to induce an error voltage in the windings of R 13  which corresponds to the angle change, this voltage being transmitted through leads 44, to an amplifier 45, fed by a power unit 43. The error voltage is rectified and fed through leads 46 to the motor of a servo valve HSV, which actuates ram 25 so as to make angle A 13  equal to angle A 12 . The angles can both be inclined by operating a knob 42 of synchro DRH. The angles A 16  and A 18  are manoeuvred in an analogous manner.
Patent GB-1389594-A (GB)
Title: Continuous mixing machines
IPC: B29B7/48
Filed: 1972-11-08
Abstract: 1389594 Mixing apparatus BEKEN ENG Ltd 31 July 1973 [8 Nov 1972] 51548/72 Heading B1C A mixing machine comprises two parallel shafts 4, 4a disposed in a mixing chamber having an inlet and an outlet, the shafts carrying intermeshing feed worms 5, 5a at the inlet end and a series of mixer blades 6, 6a, and gear means 7, 7a for rotating the shafts together but in opposite senses and at different speeds. Materials may be fed into the machine by a variable speed feeder 9 and a liquid inlet pipe 10 while a discharge control unit 11 may be mounted at the discharge end. The blades 6, 6a may be arranged in angularly staggered e.g. helical pattern along the shafts.
Patent GB-1419602-A (GB)
Title: Carburettor
IPC: F02M1/10
Filed: 1973-11-08
Abstract: 1419602 Spray carburetters FORD MOTOR CO Ltd 8 Nov 1973 [15 Nov 1972] 51833/73 Heading F1B A carburetter comprises an air/fuel induction passage 20, an unbalance mounted choke valve 28 mounted for movement across the passage to control air-flow temperature responsive spring means 60 connected to control the choke valve and first and second heater elements 87, 86 associated with the spring means to heat it to open the choke valve as the temperature rises, the first heater element 87 being operable at all times and the second being operable only above a predetermined ambient temperature. The first heater element has a smaller heat output capacity than the second heater element. The heater elements comprise positive temperature coefficient semi-conductors supplied with current via a terminal 96, the connection to heater 86 being by way of bi-metallic switch 94, which is closed at ambient temperatures above 65F so that in these conditions the choke valve opens more quickly. A hot air passage 68 connects a housing portion 42 of the choke mechanism to, for example, an exhaust manifold. A piston 78 is provided to slightly open the choke valve when the engine starts, as a result of the depression in the induction manifold. By-pass slots are formed around piston 78 to allow air to flow from passage 68 to a passage 80.
Patent GB-1138069-A (GB)
Title: Nuclear reactors
Inventor: PEARSON ROBIN
IPC: G21C15/08
Filed: 1966-11-24
Abstract: 1,138,069. Cooling reactors. NUCLEAR POWER GROUP Ltd. 23 Nov., 1967 [24 Nov., 1966], No. 52644/66. Heading G6C. In a high temperature gas cooled, graphite moderated nuclear reactor, part of the gas flows first between the fuel sleeves and the graphite core and then through the fuel sleeves, while a separate gas stream occurs between the core and the concrete pressure vessel wall. The pressure vessel 1 houses the core 2 above the heat exchangers 5. The grid 4 supports the core and the neutron shield 3. Coolant gas is urged upwards through the ducts 9 by the circulator 8, into the grid 4. The upward flow continues from the grid through passages between the fuel channel walls and the fuel sleeves, also formed of graphite, to the upper space 10. The gas flow continues downwards through the fuel channels 7, the tubular extensions 7a, the compartment 6 and through the exchanger to the circulator inlet. In addition, part of the gas flowing upwards from 4 enters the space 13 between the core and the vessel wall and recombines with the gas flowing upwards through the core in space 10. Flow regulators are mounted in passages 14 and the required gas distribution over the grid is effected by openings 16.
Patent GB-1438399-A (GB)
Title: Anthraquinone dyes
IPC: C09B1/514
Filed: 1973-11-14
Abstract: 1438399 Anthraquinone dyes GAF CORP 14 Nov 1973 [6 Dec 1972] 52785/73 Heading C4P The dyes have the formula in which A is H, Cl, Br or lower alkyl; R is alkylene of from 2-4 C, vinylene, 1,2-benzene, 1 ,2-cyclohexane, 1,8-naphthalene or 1,2-cyclohex-4-ene, all of which are opt. subs. by Cl, Br or lower alkyl; R<SP>1</SP> is lower alkyl; and Y is H, OH, Cl, Br, lower alkyl or lower alkoxy. Prepared by the reaction of an arylaminoanthraquinone with an appropriate imide and formaldehyde or a formaldehyde-generating substance in the presence of an acid, the dyes may be used to colour polyester fibres in reddish blue shades.
Patent GB-1376030-A (GB)
Title: Apparatus and method for treatment of synthetic filaments
IPC: D01F6/18
Filed: 1972-11-16
Abstract: 1376030 Treating dry spun polyacrylonitrile filaments E I DU PONT DE NEMOURS & CO 16 Nov 1972 [17 Nov 1971] 52983/72 Heading B5B [Also in Division D1] A rope is formed from dry spun solvent-laden polyacrylonitrile filaments by combining filaments from a plurality of spinning cells into a composite rope, piddling the rope into a container, forwarding the rope from the container to a liquid bath for washing to extract solvent, withdrawing wash liquor from the bath, cooling the withdrawn wash liquor, applying this cooled liquor to the rope prior to the washing step, e.g. by spraying this liquor on the rope as it is being piddled, and withdrawing surplus wash liquor from the container. If desired, ropes from a plurality of containers may be combined and forwarded as a composite tow to the washing bath. The solvent is preferably dimethyl formamide and the washing liquid water. As shown in the Figure a number of solvent-laden yarns 12 from a plurality of spinning cells 10 are passed round roll guides 14 and gathered into a composite rope 16 which is forwarded by pull-rolls 18 from where the rope is piddled by piddler 20 and associated spout 22 into an open top container 24 where it is retained for further processing, i.e. the washdraw machine 30. In this machine ropes 16<SP>1</SP> are combined by rollers 15 into a tow 17 which is passed via rollers 31, 32 ,33 and 34 through a washing bath. From this bath, wash liquor is withdrawn by valve 35 and passed to a cooler 40 from where it is fed to spray nozzles 46 and sprayed on to the piddled rope. In tank 24 the liquor may be withdrawn either by outlet pipe 25 located in the true tank bottom 28 or, by vertical pipe 25<SP>1</SP> extending through false foraminous bottom 26. In both cases the solvent is recovered in apparatus not shown.
Patent GB-1384390-A (GB)
Title: Electronic surveillance apparatus
IPC: G01F23/18
Filed: 1971-11-16
Abstract: 1384390 Measuring liquid levels under variable pressure SENSORS & SYSTEMS Ltd 14 Feb 1973 [16 Nov 1971] 53037/71 Heading G1N [Also in Division G3]  The level of a liquid in a high-pressure vessel 1, Fig.1, is found from the pressure differential between the liquid at pipe 2 and the vapour at pipe 3. The liquid level is related to this pressure differential by a function which depends on the pressure of the vapour because the liquid density varies with pressure. The pressure differential signal formed at transducer 4 is therefore modified by the vapour pressure signal from transducer 7 at compensator 10 so that the level measured is correct over the whole range of pressures which may occur in the vessel. The vessel may be a steam boiler, and the level signal may control water inlet valves or the speed of an inlet pump to maintain the level constant. The vapour in Fig.1 is steam, and it condenses into a constant head device 5 whose pipe 6 is connected both to the differential pressure transducer 4 and the pressure transducer 7. The basic equation relating the water level to the various pressures, heights and densities indicated in Fig.1 reduces to the equation h-b = F 2  (p) - F 1  (p) #p, where h is the level, b is a constant, F 1  (p) and F 2  (p) are functions of pressure generated in compensator 10, and #p is the pressure differential. Fig.7 shows in block form the integers of the compensator 10. The blocks marked Gain Function and Offset Function generate F 1  (p) and F 2  (p) by using diodes and resistors at the inputs of operational amplifiers, Figs.8 and 9 (not shown); the outputs of the operational amplifiers are a series of linear portions matched to the desired functions, Figs.3 and 4 (not shown). The outputs of the function generators are multiplied and produce the required corrected level signal, Fig.10 (not shown). A power supply is given, Fig.1 (not shown), as are all component values.
Patent GB-1424556-A (GB)
Title: Device for adjusting and maintaining valve play in internal combustion engines
IPC: F01L1/24
Filed: 1973-11-16
Abstract: 1424556 Hydraulic back-lash adjuster DAIMLER-BENZ AG 16 Nov 1973 [2 Dec 1972] 53373/73 Heading F2K An hydraulic back-lash adjuster pillar, forming an abutment pivot for a cam operated rocker arm of an I.C. engine valve gear, is constructed to prevent pump-up at high engine speeds and maintain valve clearance at a constant value and comprises a cylindrical housing 10 screwed into the engine cylinder head (not shown) and in which is slidingly mounted a 1st piston 12 formed with a ball head pivot 14 for the rocker arm (not shown), the 1st piston carrying a 2nd piston 21 forming a non-return valve between the usual pressure chamber 17 and reservoir 20, an oil collector groove and port 34, 35 serving to prevent oil loss by returning any oil leaking from the pressure chamber 17, past the 1st piston 12, back into the reservoir 20. A releasable clamping device 18 for clamping the 2nd piston 21 to the 1st piston 12 to maintain the 2nd piston 21, i.e. non-return valve, closed when the adjuster pillar is under compressive load, pressurizing chamber 17, comprises a resilient double conical-ended ring 26, on the 2nd piston 21, sandwiched between conically ended rings 27, 29, the clamping device 18 being retained in the 1st piston by a snapring 21 with a small axial clearance representing a predetermined amount of valve clearance. In operation, if on initial engine starting from cold an engine valve has been open and the associated hydraulic pillar has collapsed, i.e. the pressure chamber 17 has been exhausted to the reservoir 20 via the collector groove 34, 35, closing of the engine valve allows the pillar to be axially extended by a surrounding spring 16, the 2nd piston 20, i.e. non-return valve, opening at its seat 32, by vacuum, to fill the pressure chamber 17 from the reservoir 20 to restore the correct working height of the pillar. Thereafter the pillar remains at its working height, the engine valve clearance being maintained constant by the small predetermined axial clearance movement of the 2nd piston 21 clamping device 18 in the 1st piston 12 and pump-up being prevented by the clamping device 18 which clamps and prevents opening of the non-return valve piston under pressure. The reservoir 20 may be filled by dripped or sprayed oil injected from outside via a bore 14 and admission valve 36 which is notched at 38 to avoid pressurizing the reservoir 20. A push rod 43 on the valve 36 enables the non-return valve piston 21 to be opened during assembly to facilitate fitting of the 1st piston 12 in the oil filled housing 10.
Patent GB-1399608-A (GB)
Title: Process for preparing indole derivatives
IPC: C07D401/06
Filed: 1971-11-19
Abstract: 1399608 Derivatives of 3-(piperidinoalkyl)- indoles JOHN WYETH & BRO Ltd 6 Nov 1972 [19 Nov 1971] 53782/71 Addition to 1218570 Heading C2C The invention comprises compounds of formula wherein R<SP>1</SP> is H, C 1-6  alkyl, C 7-10  aralkyl or aroyl; R<SP>2</SP> is H, C 1-6  alkyl or aryl; R<SP>3</SP> is H, halogen, OH or C 1-6  alkyl or alkoxy; R<SP>4</SP> is H, halogen or C 1-6  alkyl; R<SP>5</SP> is aryl (possibly heterocyclic), C 1-6  alkoxy, aryloxy, C 7-10  aralkyl or aralkoxy, diaryl-C 1-6 -alkyl or C 5-7  cycloalkyl; R<SP>6</SP> is an organic quaternizing group removable under mild conditions, e.g. by hydrogenolysis; X is an anion; A is C 1-4  alkylene (possibly substituted by OH or 1-2 oxo groups which may be ketalized); Z is oxo when the bond represented by the broken line is absent, or is oxo or H 2  when that bond is present. These compounds, which are prepared by reacting together the appropriate 3-X-A-indole and 1-R<SP>6</SP>-piperidine, may be hydrogenolysed to give the corresponding unquaternized compounds (in which R<SP>6</SP> and X are absent). Therapeutic compositions for oral or parenteral administration comprise compounds of the above formula, which act on the cardiovascular system (e.g. hypotensive and/or antihypertensive activity).
Patent GB-1084710-A (GB)
Title: Method of producing aromatics
Inventor: FRILETTE VINCENT JOSEPH
IPC: C07C5/41
Filed: 1964-09-11
Abstract: Aromatic hydrocarbons are obtained from acyclic olefins, involving the formation of not more than one new carbon-carbon bond, at 371-704 DEG  C. in the presence of carbon or an oxide, hydroxide or salt of an acid having a dissociation constant less than 1 x 10-2 of magnesium aluminium, zinc or calcium. Specified olefins are diisobutylene, octene-1, hexene-2, 2,5 - dimethylhexene - 2, 2,5 - dimethyl hexadiene - 1,5 or -1,3 or - 2,4 hexadiene - 1,5 or - 2,4, isobutylene trimers and 1 - phenylbutene-3. Alumina used as catalyst preferably contains alkali metal.  The pressure may be up to 1000 p.s.i.a. and the 2HSV 0.2-20.
Patent GB-1407439-A (GB)
Title: Production of polymer solutions and of aromatic oxadiazole/ n-alkyl hydrazide copolymers therefrom
IPC: C08G73/08
Filed: 1972-11-24
Abstract: 1407439 Aromatic oxadiazole/N-alkyl hydrazide co-polymers MONSANTO CO 24 Nov 1972 [26 Nov 1971] 54324/72 Heading C3R In a process for producing a sulphuric acid solution from which an aromatic oxadiazole/N- alkyl hydrazide copolymer may be obtained by mixing the solution with water, there are reacted together (A) an aromatic dicarboxylic acid or a salt or the amide or nitrile derivative thereof, (B) a dialkyl ester of an aromatic dicarboxylic acid and (C) hydrazine or the hydrate or an acid salt thereof, the mole ratio of (A) to (B) being from 95 : 5 to 20 : 80 and of (C) to (A) plus (B) being at least 1 : 1, the reaction being carried out in fuming sulphuric acid containing up to 40 weight per cent of sulphur trioxide, the reaction temperature is from 80‹ to 170‹ C. and the dissolution and mixing of the reactants is completed prior to the start of the reaction. In examples (A) is terephthalic acid, a mixture of terephthalic and isophthalic acids, and ammonium terephthalate, (B) is dimethyl terephthalate, and (C) is hydrazine sulphate; the solutions of polymers obtained are used to spin fibres.
Patent GB-1310078-A (GB)
Title: Planar pn-junctions
IPC: H01L29/00
Filed: 1971-11-24
Abstract: 1310078 Making semi-conductor devices MARCONI CO Ltd 24 Nov 1971 [25 Nov 1970] 54492/71 Heading H1K Boron is diffused into a (100) face of an N- type silicon wafer 5 through an apertured thermal oxide mask 6 to provide a P+N junction which is rectangular in plan, the sides of the rectangle being in (110) planes. A borosilicate glass layer 8 is formed during the diffusion process. The junction-surface intercept is exposed and etched with aqueous KOH used at a temperature of more than 80‹ C. The etching is self-limiting and produces a trough bounded by (111) planes; some (211) planes may appear at the corners of the rectangle. Only the plane portion of the junction remains after the trough is formed, so that the breakdown voltage of the junction is enhanced. The trough walls are passivated and a metal contact 12 is then provided. As shown in Fig. 2d, the contact may be extended over the new junction-surface intercept to provide a field plate. A variant process involves the initial formation of the trough followed by formation of the junction by diffusion into the appropriately masked surface.
Patent GB-1485126-A (GB)
Title: Hydraulic actuating arrangements
IPC: F15B18/00
Filed: 1974-12-12
Abstract: 1485126 Fluid-pressure control circuits LUCAS INDUSTRIES Ltd 12 Dec 1974 [24 Nov 1973] 54651/73 Heading F1P In the circuit shown, Fig. 1, a piston 11 is controlled by a pair of reversing valves 13, 14 which supply either pressure P 1  or P 2  or connect to return through lines 20, 22, and a piston 12 is similarly controlled by valves 24, 25. The actuators 15, 16, 26, 27 of the valves are operated in unison by bars 28, 29 resiliently connected thereto by springs 30. This arrangement ensures that the pistons move in the desired direction even if one or even two of the valves jam. Excess pressure which may develop due to. this is relieved by one of valves 34-37.