baber/WOPTO huggingface dataset:
Patent GB-1326553-A (GB)
Title: Apparatus for and method of sensing the angular orientation of an object
IPC: G01S5/16
Filed: 1970-11-30
Abstract: 1326553 Attitude detection A B DE COU 30 Nov 1970 [28 Nov 1969] 56756/70 Heading H4D [Also in Division G1] To enable an object-e.g. an orbiting telescope or a space vehicle communicating to the Earth over a laser link-to detect and maintain its attitude with respect to a source of coherent light-e.g. a star or the laser source-the phase of the wave front of the coherent light is detected and compared at two laterally spaced points for each degree of freedom, the comparison resulting in error signals which can control and/or correct the attitude of the object. The orbiting telescope, Fig. 2, is initially, coarsely, positioned with respect to the Sun by means of known optical detectors 41 and thrusters 19. The detectors 50, 52, 56, ofthe invention are freely gimballed and cause fine attitude control by inertial means 46. Each detector, Fig. 3, comprises two telescopes 72, 74 comprising, as well as usual lenses, monochromatic filters 76, 78 to give the parallel beams of light, exiting from the telescopes, time (axial), as well as the normal spatial (lateral) coherence. The two parallel beams impinge at slightly different angles on to a strip array 86, Fig. 4a, of photo voltaic cells, the cross-section of the beam being broadened out into a strip by cylindrical lenses 84, and these interfere to give a fringe pattern Fig. 4b. The position #S of the maximum of the pattern with respect to the centre of the array indicates the required phase difference and is detected by switching and computing circuits Fig. 5 (not shown). In an alternative mode of operation the fine control provided by the invention is used to position a mirror &c. directing light to the telescope, the main body of the telescope being continuously coarsely positioned only. The space vehicle, Fig. 7 (not shown), has two pairs of detectors arranged on a fully gimballed cross-shaped base. If the level of illumination of the strip is not great enough to produce continuous readings from each photo-cell, said photo-cells can be replaced by integrating type solid state detectors which accumulate a charge proportional to the total light falling on them during a charging period are then periodically discharged at close enough intervals to give pseudo-continuous readings.
Patent GB-1438727-A (GB)
Title: Hydraulically operated building hoist
IPC: B66B9/04
Filed: 1973-12-10
Abstract: 1438727 Propelling elevators A F SIMS and C SIMS 15 Jan 1975 [10 Dec 1973] 57203/73 Heading B8L A hoist comprises a mast along which a load carrier T is movable by a cable 12, which at its end remote from the carrier is wrapped around a pair of vertically spaced pulley blocks 9 and 10 vertically displaceable relative to each other by an hydraulic ram 7 to take up and pay out the cable to move the carrier T. The ram 7 may be single or double acting, or a plurality of rams can be used in parallel to one another and suitably timed in operation. The cable 12 is guided over a mast top pulley 11 intermediate its length. The mast, comprising parallel spaced channel elements 1 between which the ram or rams are secured, is mounted on a base frame 3 having levelling jacks 4, the carrier T being supported on a support cantilevered out from the mast and rollable along the elements 1. The carrier support includes a mast engaging catch gear normally held out of engagement with the mast by the tension in the hoisting cable 12. The hydraulic ram or rams may be operated from any position along the mast by an operating rod 24 extending the length of the mast and being manually axially movable, and also movable by the carrier engaging end stops on the rod 24.
Patent GB-1248066-A (GB)
Title: Mobile emergency unit locating system
Inventor: CHISHOLM JOHN PETER
IPC: G01S5/06
Filed: 1968-12-05
Abstract: 1,248,066. Radio position-finding. J. P. CHISHOLM. 5 Dec., 1968, No. 57764/68. Heading H4D. Relates to a system in which three fixed and spaced receivers are utilized to locate each of several mobile units by determining the relative times of arrival of pulses from each mobile unit. According to one aspect of the invention, each mobile unit transmits in an assigned time slot and the time slot at a mobile unit is synchronized with a fixed system by a correction signal from the fixed system which is provided with an accurate clock. According to another aspect of the invention the mobile units are of two kinds (e.g. police vehicles and other vehicles) in the first of which timing means periodically actuates the pulse emitter and in the second of which a transmitter is actuated to transmit pulses at a higher repetition rate than in the first kind and a switch renders the actuator operative. Coded pulse groups of different kinds may be sent from the two kinds of mobile units.
Patent GB-1313460-A (GB)
Title: Means for producing distinguishable portions of traces made by  chart recorder writing styli
IPC: G01D15/00
Filed: 1971-12-15
Abstract: 1313460 Recording apparatus JAEGER 15 Dec 1971 [15 Dec 1970] 58304/71 Heading G1J Recording apparatus has a stylus 2 on an arm 1 for making a trace on a chart 9 and a device for laterally deflecting the arm 1 to mutually distinguish portions of the trace, deflection of the arm 1 being produced by periodic deformation of a bimetal element 4 supporting the arm 1. A generator 8 supplies electric current pulses to a heating element 7 wound on the element 4 and the element 4 may be U-shaped to provide temperature compensation. Movement of the arm 1 may be limited by a stop 10 made adjustable to allow the width of the trace to be adjustable. The stop 10 may be used as a contact in a circuit for terminating the heating pulse. Another stop may engage the arm 1 in the unenergized condition of the element 7 and may serve to switch on a new pulse. The chart 9 moves in a direction perpendicular to that of the stylus movement so that sections of the trace made at different times can be distinguished. The apparatus may be used to produce different widths of the line traced or to obtain a continuous trace denoting pulses by saw tooth deflections.
Patent GB-1224616-A (GB)
Title: Valve closure for ladles and the like
Inventor: FEHLING HANS REINHARD
IPC: B22D41/14
Filed: 1967-12-30
Abstract: 1,224,616. Foundry ladle valves. DIDIERWERKE A.G. 16 Dec., 1968 [30 Dec., 1967], No. 59289/67. Heading F4B. [Also in Division F2] A valve for controlling the discharge of molten metal from a ladle comprises a head 1, a support member 3 for the head, a body 4b having an internal flow passage 15 and means 13 to support the member 3 at a plurality of circumferentially-spaced locations from the body whereby the downward flow is divided into a plurality of streams 14 where it passes the support member, the head having a cup 1a to receive some of the molten metal or containing a metal core to counteract the effect of buoyancy. The seat 2 and its supporting blocks 5 form part of the refractory lining of the ladle while the valve body 4b may be moved axially in a cylindrical collar 10 by a mechanical or hydraulic actuator to which it is connected by bosses 12. The head, support member and body may be formed integrally with each other or as two in three separate members, the parts exposed to high temperature being made from a refractory containing 80% Al 2 O 3 , 15% S 1 O 2 , 3% ZrO 2 , 0-5% Fe 2 O 3  and about 0-8% alkali oxides or from one containing 90% tabular alumina and 9% S 1 O 2  mainly present as mullite. The upper surface of the valve head has a wetted surface which is large in relation to that on the underside so that under normal conditions the forces imposed by the melt nullify the buoyancy of the head and there is no need to anchor the latter to its support member. The parts below the valve head may be lowered as a complete sub-assembly to facilitate inspection and replacement.
Patent GB-1358179-A (GB)
Title: Process for producing diene polymers
IPC: C08F36/00
Filed: 1971-12-23
Abstract: 1358179 Diene polymers JAPAN SYNTHETIC RUBBER CO Ltd 23 Dec 1971 [26 Dec 1970] 59858/71 Heading C3P A diene elastomer is produced by polymerizing one or more conjugated dienes (e.g. butadiene, isoprene or piperylene) along or together with a vinyl aromatic hydrocarbon (e.g. styrene, α or # methylstyrene, 3 vinyl toluene or vinyl naphthalene) in the presence of an organolithium initiator (e.g. n-butyllithium) and an anionic surface active agent containing a group of the formula -SO 3 M or -OSO 3 M (where M is Na, K, Cs or Rb) and in a solvent comprising a mixture of (1) at least one aliphatic and/or alicyclic hydrocarbon, and (2) at least one alkyl substituted hydrocarbon said mixture containing 0À5 to 20% by weight of the alkyl substituted aromatic hydrocarbon. Extensive lists of monomers, catalyst components and solvents are given. In the examples butadiene is polymerized alone or copolymerized with styrene or isoprene using n-butyllithium and potassium or sodium dodecylbenzene sulphonate with as solvents cyclohexane containing toluene or n-hexane containing toluene, ethyl benzene, α- methyl naphthalene or o-xylene. The process may be continuous or batchwise and the catalyst components may be mixed in the polymerization reactor or before addition to it. Methanol, water and antioxidants may be added at the termination of polymerization.
Patent GB-1308710-A (GB)
Title: Hydraulically-actuable elevator system
IPC: B66B9/04
Filed: 1970-12-17
Abstract: 1308710 Hydraulic elevators R L BROWN 17 Dec 1970 [18 Dec 1969] 60074/70 Heading B8L A modular hydraulically actuable elevator system having an elevator car 11 vertically reciprocable between levels A and B, comprises an upright frame 20, 30, a pair of hydraulic pistons each having a plunger 62 in a casing 52 for suspending the elevator car from an upper portion 21 of the frame, either the piston plunger or casing being attached to the portion 21 or the other being attached to the car, and pump means for introducing fluid into the casings 52 to retract the plunger into the casing to cause elevation of the car, controlled withdrawal of fluid from the casing allowing the car to descend. The frame comprises upright channels 30 in which the pistons are housed, foundation pads 32 at the base of the channels and on which the whole system is supported as a module, and a cross-beam 21 for the channels 30, from which the pistons depend. The stroke of each piston is equivalent to both the height of the car and the space between the floor levels A and B. The sides of the elevator car are recessed to house the channels 30 and roller engagement is provided therebetween. Fluid is pumped into the pistons upon energization of the pump via an "up" switch and the car is elevated until a limit switch is operated to stop the pump. Upon closing a " down " switch, fluid is allowed to drain back to reservoir through a regulator valve permitting gravitational lowering of the car. In the embodiment of Fig. 7 (not shown) the plungers of the pistons comprise telescoping sections, each section being equivalent to the spacing between floor levels, whereby several floors may be served by the elevator car. The modular system may be sited alongside a building or in a well formed within the building.
Patent GB-618603-A (GB)
Abstract: 618,603. Knitting-machines. BERRIDGE & CO., Ltd., I. L., MARTIN, C. S., and COOKE, A. E. May 15, 1946, No. 14616. [Class 74(ii)] A stop motion for a knitting-machine 1 is controlled by a cold cathode valve 2. The development of a fault operates detector devices on the machine 1 which close a switch 3 and permit the charging of the valve grid 2c from the current applied through a transformer 4. The charged grid 2c permits current to flow in the main valve circuit to operate a relay 6. This relay breaks the current flowing in the relay circuit demagnetising an electromagnet 11 and permitting a spring-loaded rod 12 to withdraw. The rod 12, being connected to the machine starter, causes stoppage of the machine and also breaks contacts A-A, B-B in the valve and relay circuits. The machine is restarted by advancing the rod 12 when contacts AA, BB are closed and current supplied from source through a transformer 4a is reestablished in the relay circuit. Rectifiers 5 and 10 are fitted in the valve and relay circuits and a condenser 7 is placed across the valve circuit leads. Any device other than the switch 3, such as a capacity or variable inductance, may be used to apply voltage variations to the grid circuit.
Patent GB-1301115-A (GB)
Title: Sine function generator
Inventor: MATHEWS DAVID JOHN
IPC: H03M1/00
Filed: 1969-12-30
Abstract: 1301115 Selective signalling THORN AUTOMATION Ltd 30 Dec 1969 63348/69 Heading G4H  The range of operation of a single-quadrant sine function encoder is extended to 360 degrees by applying the least significant N-2 bits of a binary coded N-bit digital signal representing an angle in the range 0 to 360 degrees to the encoder either in true or inverted form, in accordance with the quadrant in which the angle lies as determined from the second most significant bit, and by giving its output a sign determined by the most significant bit. As described the encoder, of which no details are given, produces a digital output which is converted to analogue form in a conventional manner (Fig. 2, not shown) by switching the rungs of a ladder.
Patent GB-698117-A (GB)
Abstract: 698,117. Tape and label dispensers. MINNESOTA MINING & MANUFACTURING CO., Ltd. Oct. 2, 1951 [Oct. 2, 1950], No. 24067/50. Class 18 A device for dispensing adhesive tape having labels adhered to it at intervals comprises a container 1 for the labels over which the tape is passed so as to enable it to be brought into contact with the uppermost label of a stack and then subsequently severed on a cutter 8 so as to provide a strip of adhesive tape with the label affixed. To facilitate affixing of the label a roller 10 may press on the tape and the stack of labels is urged upwardly by a weight 3 effecting a plunger 5 pressing beneath a movable platform 2 on which the stack of labels is mounted. Alternatively the tape may be manually pressed into contact with the top label. In addition a moistening device for moistening the label may be positioned between the container and cutter. A surface 15 is provided to which the tape is affixed on severing a length..
Patent GB-1278716-A (GB)
Title: Dispensing package
IPC: A61Q5/10
Filed: 1970-10-21
Abstract: 1278716 Dyes and bleaches for hair and skin GILLETTE CO 21 Oct 1970 [28 Oct 1969] 49961/70 Headings D1B and D1P [Also in Division B8] The components of a two component hair or skin treating pack comprise an aqueous alkaline solution and a buffered hydrogen peroxide solution of pH 2.5-6.5 and are arranged to produce, on mixing, a solution of pH 7-12. The alkaline solution may be an oxidative dye or a bleach, and the peroxide solution may include a stabiliser such as hydrochloric acid, sulphuric acid, acid sulphate salts, pyrophosphates, silicates, stannates, or phenacetin. The buffer may be potassium acid phthalate, citric acid / sodium citrate or disodium phosphate or sodium chloride plus sodium hydroxide, acetic acid/sodium acetate. Dye solution example: The dye base comhydrogen peroxide, phenacetin, sodium stanmonoethanolamine, octylphenoxy polyethoxy ethanol, isopropanol, P-Phenylene diamine, resorcinol, 2,7-dihydroxynaphalene, the solution having a pH of 10. The peroxide component is a solution in deionised water of hydrogen peroxide, phenacetin, sodium stannate and potassium acid phthalate, the solution having a pH of 4. Bleach solution examples: (1) The bleach base comprises an aqueous solution of oleic acid, myristic acid, octylphenoxypolyethoxy ethanol, isopropanol, and ammonia, the pH being 10. The peroxide component is an aqueous solution of hydrogen peroxide, phenacetin, sodium stannate, surfactants, and potassium acid phthalate, the pH being 4. (2) The bleach base comprises an aqueous solution as above except that the ammonia is replaced by laurylalcohol, and the peroxide component is as above.
Patent GB-702645-A (GB)
Abstract: 702,645. Reinforced concrete pipes. RAYMOND CONCRETE PILE CO. May 27, 1952, No. 13399/52. Class 99 (2). [Also in Groups X and XXI] A concrete pipe provided with tensioned, longitudinal reinforcement is made by casting the pipe with a number of holes 20 evenly spaced around its wall 22 and extending from end to end of the pipe parallel with its axis. A group of reinforcing wires 18 is then threaded, through each hole and tensioned by jacks 24, the holes being filled with cement grout which, when set, bonds the wires to the concrete. To allow the jacks 24 to be removed after use, each group of tensioned wires 18 is clamped between a cone 10 and a tapered socket 12, the socket bearing on a spacing stool 28 which bears directly on the concrete surrounding the hole. The grout 36 is injected into the hole 20 through an axial hole 14 in the cone 10 and a passage provided through a plaster of Paris packing 30 previously cast into the spacer 28. When the grout has set the.plaster 30 is chipped away and the ends of the wires cut off, the grout bond maintaining the tension in the wires and the compression in the concrete.
Patent GB-2031100-A (GB)
Title: Structural jointing system
IPC: F16B7/00
Filed: 1978-07-26
Abstract: A method of joining members in a space structure, whereby light gauge tubular members in continuous lengths are flattened locally, and connection achieved by spot welding or other techniques such as rivetting or bolting. Particular application to double or multilayer grids is envisaged. <IMAGE>
Patent GB-2003673-A (GB)
Title: Miniature synchronous motor
IPC: G04C3/16
Filed: 1978-08-16
Abstract: A miniature synchronous motor having a bell-shaped rotor and a damping body, freely mounted, but non-rotatable on the rotor shaft. The damping body being urged, at least substantially in a radial direction by a spring, the force of which also acts substantially equally for both bearings of the motor so as to reduce noise during operation.
Patent GB-2028580-A (GB)
Title: Ion implantation methods for semiconductor substrates
IPC: H01L29/167
Filed: 1978-08-25
Abstract: A method of ion implantation for controlling the life time of minority carriers in a semiconductor substrate and hence to reduce the temperature dependency of the life time, comprises implanting iron ions into an N type semiconductor substrate with a dosage of 10<10> to 10<15> ions cm<2>, and then heat-treating the implanted substrate at 850 DEG  to 1250 DEG C. The method is applicable to the production of diodes, transistors, Si controlled rectifiers and gate controlled switching devices.
Patent GB-2014278-A (GB)
Title: Pressurized-liquids Mixing Device
IPC: B01F15/04
Filed: 1978-11-28
Abstract: The device comprises supply tubes 3 connected by means of pipes P to supply sources A and B containing liquids to be mixed. The liquids flow into a vertical cylinder 1 at flow rates adjusted by valves C and hit a bulkhead 2 so as to flow down to the lower end of the bulkhead where they are mixed. Since the liquids at different pressures are led independently to the free-pressure section where mixing takes place and a faucet 4 is connected to the lower end of the vertical cylinder 1, smooth mixing of the liquids results. <IMAGE>
Patent GB-2011054-A (GB)
Title: Freeze Drying Apparatus
IPC: F26B5/06
Filed: 1979-01-09
Abstract: A freeze-drying apparatus consists of a drying chamber 1 connected via a valve V1 to a principal condenser chamber 2 and directly connected to a secondary condenser chamber 4. The chambers are each connected via separate valves V2 and V3 to a vacuum source 3. When valves V1 and V2 are closed, chamber 4 condenses ice sublimed from the material in chamber 1 and chamber 2 may be defrosted. When the valve V1 and V2 are opened, and valve V3 is closed, the operation is normal and in addition any ice condensed into chamber 4 is re-sublimed into chamber 2 along with ice from the material in the chamber 1. Preferably the valves V1, V2 and V3 are synchronously operated through mechanical connection. <IMAGE>
Patent GB-2040449-A (GB)
Title: Assessing Concentration of Suspended Matter
IPC: G01N21/29
Filed: 1979-01-26
Abstract: In determining its available potassium content, a nutrient solution or soil is treated with a liquid extractant which extracts potassium, the solution is filtered, and the filtrate is treated with a reactant which produces a suspension whose turbidity increases with potassium concentration. The potassium content is assessed by estimating the concentration of suspended matter. In this invention use is made of a chart 1 having markings 2a to d which are visible to a different degree in contrast with a white background when observed through a liquid in which suspended matter is dispersed. A flat- bottomed test tube containing the suspension to a given depth is upright placed on the horizontal chart, the markings 2a to d are observed in pairs through the depth of the suspension, and the marking which is just visible is determined. <IMAGE>
Patent GB-2014583-A (GB)
Title: Cryoprecipitate for Blood Plasma
IPC: A61K35/16
Filed: 1979-03-05
Abstract: A method for producing cryoprecipitate from blood plasma in which the plasma is rapidly frozen by a blast freezing process, is subsequently rapidly thawed and is then held at a predetermined temperature greater than 0 DEG C; and apparatus for producing cryoprecipitate comprising a housing (2), container (42) for blood plasma, means (26) for cooling air within the housing, means (20) for heating air within the housing, fan means, (e.g. 18) for circulating air within the housing and for maintaining the plasma temperature at a first predetermined value and further cooling means (22) co-operating with the heating means (20) for maintaining the plasma temperature precisely at a second predetermined value. <IMAGE>
Patent GB-2018531-A (GB)
Title: Method and control circuit for controlling a power conversion system
IPC: H02M7/75
Filed: 1979-04-03
Abstract: The thyristors of an a.c. to d.c. bridge converter, having neutral connected thyristors, are controlled at relatively low power levels by gating each phase leg thyristor conductive for a predetermined minimum period within the electrical separation between adjacent line to neutral phase voltages and immediately gating the respective neutral leg thyristor conductive for the remainder of the period such that there are no intervals in the cycle when both neutral leg thyristors are in conduction. A three-phase digital firing control circuit controls the generation of firing pulses A+,....., N- for the eight controlled rectifiers (thyristors) in five distinct operating modes by comparing ramp signals F1-F6 corresponding to respective phase thyristors with a DC COMMAND and with the system neutral voltage NN to produce logic signals X1-X6, I1-I6 which are combined 126 with signals A-C produced by a detector 44. <IMAGE>