baber/WOPTO huggingface dataset:
Patent GB-1266458-A (GB)
IPC: B60R15/02
Filed: 1970-07-01
Abstract: 1,266,458. Brush handles. ALLSTAR VERBRAUCHSGUTER G.m.b.H. & CO. K.G. 1 July, 1970 [3 Sept., 1969], No. 31824/70. Heading B4K. [Also in Division A4] A brush comprises a plastics material handle 1 connected to a wedge-shaped brush-body 2 consisting of two identical plastics material shells 3, 3 the outer surface of each shell being covered with a padded textile material 4, 5, e.g. velvet or plush. Each shell is constructed in such a manner that when the two are placed together to form the brush body complementary structural elements 8 and 9 formed on the shells align and interengage. The periphery of each shell is toothed, the teeth 6, 6<SP>1</SP> and 7 holding the textile 4 in position. The handle is secured to the brush body by the engagement of a forked clip 15 in recesses 13 formed in longitudinal webs 12 which are integral with the half-shells. A brushing element 4 in which the bristles all point in the same direction is preferred.
Patent GB-1290336-A (GB)
IPC: G01S17/02
Filed: 1969-03-26
Abstract: 1290336 Determining molecular weight by photo-electric means; correlators NATIONAL RESEARCH DEVELOPMENT CORP 19 March 1970 [26 March 1969] 15959/69 Headings G1A and G1U The light of a laser beam deflected from a test material displaying Brownian motion has a frequency function consisting of simultaneous different doppler shifts in frequency from the frequency of the incident beam so that by generating from the frequency function a corresponding time function an estimate of the diffusion coefficient of the material can be made. Then if the sedimentation coefficient of the material (as derived with the aid of an ultracentrifuge) is divided by the diffusion coefficient, the molecular weight of the material e.g. large protein molecules, can be obtained (Svedberg's Equation). The time function may be a Fourier transform of the frequency function. It is shown mathematically using auto-correlation techniques followed by simplification in terms of a random telegraph function, that the same time function can be obtained from the intensity distribution of the scattered light by counting the number of photons deflected along a specific direction off the beam axis during successive time slots each of which is sufficiently short that the likelihood of a photon appearing is very small. The test material is suspended in a transparent container and illuminated by a laser beam. Light scattered from the material is detected by a photo-multiplier located off the beam axis. The photo-multipliers pulse output is shaped and applied to a digital clipped autocorrelator Fig.3 (not shown). The latter comprises eighteen stores in which the numbers of photons received during successive time slots are stored such that a first store contains the count for the current time slot whilst a last store contains the total count since zero time with the intermediate stores containing the cumulative count at intermediate time slots. Photons arriving during the shift from one store to the next at the beginning of each time slot are ignored by the action of an inhibit gate at the output of the pulse shaper. The contents of the stores are plotted against time to provide an exponentially decaying autocorrelation function which is the Fourier  transform of the intensity fluctuation spectrum of the light scattered by the test material. From the decay time of the function a measure of the diffusion coefficient and hence of the molecular weight of the material is obtained.
Patent GB-1295528-A (GB)
IPC: C03C27/12
Filed: 1970-06-19
Abstract: 1295528 Glass laminates IMPERIAL CHEMICAL INDUSTRIES Ltd 8 June 1971 [19 June 1970] 29906/70 Heading B5N A method of making a glass laminate having modified transparency comprises forming a sandwich of two sheets of glass with two sheets of plastics film between them, at least one of the film surfaces at the inter face between the two sheets of plastics film having been metallized, heating the sandwich to a temperature above the melting point of the plastics film, and thereafter holding the layers of the sandwich in contact with each other until the plastics film material has cooled to a solid state. Specified plastics materials are copolymers of ethylene with monomers containing the free hydroxyl, carboxyl or ethoxy groups, e.g. acrylic or methacrylic acid, and preferably containing units of a third comonomer, e.g. an acrylate or methacrylate or a vinyl ester. The preferred metal is aluminium. The method may be effected by assembling the layers on a jig, placing the assembly on a rubber or plastics bag, evacuating the bag and heating the assembly in an autoclave or an oven, the assembly being cooled or allowed to cool prior to the removal of the bag; in an alternative method, heat and pressure may be applied by a mechanical or hydraulic press.
Patent GB-1296090-A (GB)
IPC: H03H11/26
Filed: 1970-03-12
Abstract: 1296090 Transistor pulse delay circuits COMPUTER OPTICS Inc 12 March 1970 [12 March 1969] 11853/70 Heading H3T A pulse delay circuit comprises a series of active delay devices 1 . . . 8, and a number of output circuits 11, 12, 13 each receiving pulses from a pair of the delay devices to produce delayed output pulses of which the turn-on and turn-off are both controlled by the leading edge of a pulse being propagated down the series of delay devices. Each device 11, 12, 13 is an AND gate which is set to its " 1 " output level by the leading edge of a propagated pulse arriving at one stage along the delay chain, and is reset when the pulse arrives at a subsequent stage. For example, the output pulse on DL-1 is initiated by the pulse at stage 1 of the delay and terminated when this pulse reaches stage 4. The output pulse width is therefore of duration equal to that of three delay stages, and is not dependent on any variations in the width of the pulse propagated down the delay chain. Outputs of required delay are produced on DL1, DL2, DL3 by applying enabling pulses on lines 16, 17, 18. The delay devices 1 . . . 8 comprise a chain of common emitter transistor switches, Fig. 2 (not shown) and the AND gates 11, 12, 13 comprise three transistors with the emitter-collectors circuits in parallel, Fig. 3 (not shown).
Patent GB-1296225-A (GB)
IPC: H01L29/86
Filed: 1969-12-16
Abstract: 1296225 Semi-conductor devices WESTERN ELECTRIC CO Inc 16 Dec 1969 [20 Dec 1968] 61112/69 Heading H1K A semi-conductor device has a psnspsn zone sequence where the s zones are of low conductivity and may be intrinsically conductive. The outermost p and n-zones (e.g. # 10<SP>20</SP> atoms. cm.<SP>-3</SP>) are preferably at least ten times more highly doped than the inner p and n zones (e.g. # 10<SP>16</SP> atoms. cm.<SP>-3</SP>) which themselves are preferably at least ten times more highly doped than the s zones-the outermost zones may be degenerately doped. A semi-conductor switch is shown in Fig. 4 in which the inner p and n zones 20A, 21A are provided with heavily doped contact regions 20B, 21B. The load 44 and main power supply are connected across the inner psn sequence 20A, 19, 21A and the reverse bias set to just below the point of avalanche breakdown. Closure of either or both switches 45, 46 is arranged to initiate avalanche breakdown in the end regions 15, 16 and carriers thereby injected into the main s region 19 cause the device to turn on-very little power it taken from the trigger circuits, the switches 45, 46 of which may be transistorized circuits. In a negative resistance diode, Fig. 1 (not shown), the intermediate electrodes and associated heavily doped contact regions of the Fig. 4 switch are omitted-the diode may be used in amplifiers, oscillators, and parametric circuits. In the devices, the width of the central s zone 19 may be 5-100 Á, the width of the other s zone 17, 18 1-5 Á and the width of the inner p or n zones less than that of the pair of s zones 17, 18.
Patent GB-1297665-A (GB)
IPC: H01R13/502
Filed: 1970-04-02
Abstract: 1297665 Two-part coupling ARROWHART (EUROPE) Ltd 2 April 1970 [3 April 1969] 54376/70 Divided out of 1297664 Heading H2E The subject matter is included in Specification 1,297,664, the claims being directed to a strain relief means for a conductor cord comprising two clamp members 60 mounted on a body of a connector and on either side of a conductor cable so as to clamp the cable between arcuate jaws 60a, each of which is attached to a clamp member by a rib 60c. The jaws and clamp may be integrally moulded in electrically insulating material.
Patent GB-1297841-A (GB)
IPC: B25B21/00
Filed: 1970-02-25
Abstract: 1297841 Screwdrivers K TOTSU 25 Feb 1970 [6 Aug 1969] 9112/70 Heading B3N A portable electric screwdriver 10, Figs. 1 and 2 comprises a handle 12 housing an electric motor 16, a driven shaft 22 and a clutch mechanism 36, the screwdriver being adapted to be driven by the electric motor until a predetermined resistance is reached, whereat the screwdriver is operated manually from the handle through clutch 36, which drives shaft 22. The motor shaft 18 is connected to an intermediate shaft 20, which in turn is releasably coupled to shaft 22 by a split pin 28 in the shaft 22 which is located in a bore 24 in shaft 20, and a diametric slot and key connection 20, 30. Shafts 20, 22 may be formed on a single shaft. Clutch 36 is formed as a coil which is connected at one end to handle 12, and at the other end to a collar 34 connected to shaft 20. In operation, a push button 38 is actuated so that motor 16 drives in a screw 68, Fig. 10 (not shown), and tends to open the coils of clutch 36. When a predetermined torque is reached motor 16 stops, and handle 12 is rotated so as to wind-up the clutch and further tighten the screw. Collar 34, Fig. 5, is rotatable relative to shaft 20, and has ridges (40), Fig. 6 (not shown), or balls (54), Fig. 7 (not shown), which co-operate with recesses (44) in a second collar 42 rotatably fixed but axially slidable on shaft 20 to provide a clutch drive, override of the clutch is varied by screwing a nut so as to vary the tension in a spring 50. A planetary reduction gear may be provided between the motor and shaft 22. The screwdriver tip 56 comprises a bore and slot 60 58, Fig. 8, into which a driver bit 62 is fitted, a resilient screw-holding member 64 being provided.
Patent GB-1306651-A (GB)
Title: Air intakes for gas turbine engines
IPC: F02C7/045
Filed: 1971-03-02
Abstract: 1306651 Gas turbine engines air intakes ROLLS-ROYCE Ltd 2 March 1971 5802/71 Headings F1G and F1J The invention relates to an air intake for a gas turbine engine and to means of attenuating noise during certain phases of engine operation. The engine shown is a gas turbine ducted fan engine comprising a fan 14 rotatable within a duct 18 defined by a cowl member 16 which is of double-wall form, a series of openings 24 being formed in the inner wall of the cowl. Series of panel members 26, 28 are associated with each opening 24, the inner panel 26 being movable between a position in which it closes the opening 24 and an operative position radially inward of the first position. Both surfaces of the panel member 26 are covered with sound absorbing material. The outer panel 28 is formed of parts 28a, 28b pivotally connected at 30 and parts 28c, 28d pivotally connected at 32. The panel 28 is inter-connected with the panel 26 such that when the panel 26 is disposed in the opening 24, the panel 28 is retracted within the hollow interior of the cowl 16, and when the panel 26 is moved inwardly to its operative position within the air intake duct 20 the panel 28 is moved inwardly so as to be disposed within the opening 24. The inner surface of the panel 28 is covered with sound absorbing material. The panel 28 is formed of four parts 28a, 28b, 28c, 28d the parts 28a, 28b being hingedly connected at 30 and the parts 28c, 28d being hingedly connected at 32. A link 36 is pivotally connected to the panel 26 at 40 and to the panel member 28a the link being enclosed within a fairing 34. Similarly a pair of links 36a, 36b is pivotally mounted on the panel 26 and is secured to the panel member 28c, the links being enclosed within fairings 34a, 34b. Actuators 54 are connected by linkage 56, 38a to the links 36a, 36b and by linkage 56, 58, 60, 62, 38 to the links 36. The rearward end of the panel member 28b carries rollers 42 which engage in cam grooves 44 in fixed structure. Similarly the panel member 28d carries rollers 42a which engage in cam grooves 44a in fixed structure. The arrangement is such that the panel members are movable between the retracted position shown in broken lines towards an operative position as indicated by full lines. In a second embodiment the outer panel 74 is formed in one piece and is pivotally mounted at its rearward end 76 to the cowl 16. Bellcrank levers 80, 82 are pivotally connected to the panel at points 84, one arm of each bellcrank lever being pivotally connected to the inner panel member 70 and the other arms of the two bellcrank levers being connected by a link 92. The forward end of the link 92 carries a roller 86 which engages in a cam groove 88 formed in fixed structure. An actuator 78 is connected to the outer panel 74 and the arrangement is such that as the outer panel 74 is pivoted inwardly so as to be disposed within the opening 72 in the cowl wall the inner panel 70 is moved to an operative position within the duct and parallel to the inner wall of the cowl.
Patent GB-1313417-A (GB)
Title: Process and apparatus for making human foods and animal feeds
IPC: A23L29/00
Filed: 1970-06-05
Abstract: 1313417 Foods UNITED NATIONS CHILDRENS FUND BUEHLER AG Gebr and A BUFFA 5 June 1970 27431/70 Heading A2B A process for making human foods (e.g. infants' and dietetic foods) and animal feeds comprises mixing a starch-containing raw material, a high temperature resistant α-amylase and water to form an extrudable paste having a 30-50% by wt. moisture content, extruding the paste at 65-115‹C to obtain partial gelatisation and a priming of fermentation, treating the extruded product in a fermentation apparatus for up to 90 minutes at 55-90‹C in a high humidity atmosphere to convert the starch into dextrines and sugar (e.g. maltose, sucrose), and drying the product (e.g. at 85-100‹). The product may be sterilised during the drying. The drying operation may comprise a preliminary stage to deactivate the enzyme. Water and steam may be added to the extruded product before or while it is in the fermentation apparatus. The pH of the paste may be controlled before extrusion by the addition of additives. The mixing may be done in a heated mixer. The dried product may be ground and mixed with additives, e.g. sugar, protein, powdered milk, vitamins, aminoacids and mineral salts. The paste may comprise flour, meal and grits of cereals, pulses, starch roots, tubers and oil seeds, milk products, vitamins, mineral salts, aminoacids and a gluco-amylase. The fermentation and drying devices may comprise vessels in which are mounted a plurality of superimposed conveyor belts.
Patent GB-1314427-A (GB)
Title: Amino acid esters of 2,2-dialkyl-4-4-pyridyl-2h-7-substituted- chromen-5-ols
IPC: C07D405/04
Filed: 1970-07-17
Abstract: 1314427 Amino-esters derived from 4- pyridylbenzopyran BEECHAM GROUP Ltd 8 July 1971 [17 July 1970] 34861/70 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable acid addition salts or acyl derivatives, wherein R 1  is a C 1-6  non-aromatic hydrocarbon group, R 2  is a C 1-20  non-aromatic hydrocarbon group, X is a C 1-10  divalent hydrocarbon group, R 3  is H or a hydrocarbon group (possibly joined to X or R 4 ) and R 4  is H or a hydrocarbon group (possibly joined to R 3 ). In examples, these compounds are prepared by ester-formation, or by removing an N-trityl or N-carbobenzyloxy group from compounds formed by esterification (e.g. the N - carbobenzyloxy - DL - # - phenylalanine ester of 2,2 - dimethyl - 7 - (3 - methyl - 2 - octyl) - 4- (4-pyridyl)-2H-chromen-5-ol). Therapeutic compositions for oral or parenteral administration comprise compounds of the above formula, which have cardiovascular and C.N.S. activity. Antihypertensive, analgesic, antidepressive and anti-anxiety activities are mentioned.
Patent GB-1321612-A (GB)
Title: Extraction of metals from metal-containing materials
IPC: C22B4/00
Filed: 1969-06-02
Abstract: 1321612 Extracting metals M D BAXTER [trading as ADVERTRANS] 2 June 1970 [2 June 1969] 27893/69 Heading C7D [Also in Division F4] Finely divided metalliferous material is passed downwardly in a dispersed condition through a reaction zone heated by arcs produced by rod electrodes angularly spaced round the material path, a gaseous reduction medium also being injected into the reaction zone. As shown in Fig. 1, powdered ore from conduit 15 and reducing gas from nozzle 14 are discharged between electrodes 11, and molten metal collected in bath 17, while in the modification of Fig. 2 a  separation zone 20 is surrounded by magnetic coils 24 which accelerate ferromagnetic particles downwardly thereby separating them from non- ferrous materials which are carried off in an upward stream of gas induced by fan 25 and subsequently separated. The gas stream may be such as to temporarily solidify the ferrous particles, while the coils may alternatively be arranged to tumble the ferrous particles together so that they coalesce. In a further embodiment, Fig. 5 (not shown), the electrodes 40 are axially adjustable so that they may also be used for initially melting a charge of scrap metal, while as shown in Fig. 6 (not shown) the extraction apparatus may be integrated with a conventional arc furnace wherein the extracted metal is finally processed.
Patent GB-1324843-A (GB)
Title: Method and apparatus for identifying and distinguishing members
IPC: G01R31/02
Filed: 1969-10-22
Abstract: 1324843 Indicating wires D W J WHITE 21 Oct 1970 [22 Oct 1969] 51719/69 Heading G4H A device uniquely identifying a particular wire in a cable, comprises a transmitter which marks each wire with a unique digital signal, and a receiver attached to a probe which identifies the wire. The wires may have clock pulses transmitted along them, appropriate clock pulses in an eight pulse train being marked by a longer pulse to identify the wire by a binary decimal code. Alternatively trains of a hundred pulses are used, one pulse being marked to indicate the wire. Short circuits between the wires may be detected and open circuited wires may also be detected.
Patent GB-1327032-A (GB)
Title: Quaternary ammonium substituted hydroxylamines and their use as photographic developers
IPC: G03C8/06
Filed: 1969-10-27
Abstract: 1327032 Quaternary ammonium substituted hydroxylamines AGFA-GEVAERT 2 Oct 1970 [27 Oct 1969] 52564/69 Heading C2C [Also in Division G2] The invention comprises compounds in which one of R 1  and R 2  is a hydroxyalkyl group carrying a cyclic or acyclic quaternary ammonium group, and the other is alkyl or a hydroxyalkyl group carrying a cyclic or acyclic quaternary ammonium group. These compounds may be prepared by quaternization or by reaction of hydroxylamine or an N- alkylhydroxylamine with a quaternary salt of a glycidylamine. The compounds of the invention used as photographic developing agents.
Patent GB-1328350-A (GB)
Title: Governor machines
IPC: F02D1/00
Filed: 1969-12-30
Abstract: 1328350 Speed governors; fluid pressure servomotors C A V Ltd 10 Dec 1970 [30 Dec 1969] 63236/69 Headings G3B G3P A speed governor for controlling the quantity of fuel delivered by a fuel injection pump comprises weights 14, an axially movable sleeve 15, a thrust race 17, a second sleeve 16, and a leaf spring 27 provided to oppose the movement of the weights. The leaf spring extends around a shaft 25 at one end and bears upon rollers 24, Fig. 1 (not shown) which in turn contact the sleeve 16. A roller structure 28 co-operates with the leaf spring and an inclined surface 31 so as to alter the force acting on the spring. The structure 28 is actuated manually by rotation of the shaft 25. Limit stops 36 and 37 are provided. Servomotor Movement of the sleeve 16 causes movement in a lever 19 which is transmitted to a valve member 38 (Fig.4). The valve member reciprocates in a piston 40 the movement of piston 40 being transmitted to the control rod of the fuel injection pump apparatus. High pressure fluid is fed to the r.h.s. of the piston 40; the l.h.s. is at low pressure. In equilibrium, valve lands 49 and 50 cover bores 47 and 42 respectively. Movement of the valve member 38 causes the piston to follow until the equilibrium position is restored. The lever 19 is formed as two parts spring- loaded relative to each other so that the valve member 38 can be moved to reduce the pump output to zero when it is required to stop the engine. For this purpose an operator's stop control Fig. 5 (not shown) is provided. Various attachments may be provided to effect additional control over the quantity of fuel supplied. Such additional control can be altitude pressure of air delivered by a supercharger and torque, the latter attachment comprising springs acting between sleeve 16 and a collar which collapse when the governor weights opposed by the leaf spring exceed a predetermined value.
Patent GB-1337581-A (GB)
Title: Gaseous fuel burner
IPC: F23Q3/00
Filed: 1971-04-19
Abstract: 1337581 Igniting gas burners; pilot burners LANDON KINGSWAY Ltd 19 April 1971 [4 March 1970] 10311/70 Headings F4F and F4T A gaseous fuel burner comprises a hollow tubular member 10 having a fuel-air outlet 14 at one end and an insulating bush 15 at the other end, a high tension electrode 16 extending from the bush 15 to the outlet 14, and a further hollow tubular member 12 positioned with its axis perpendicular to the axis of member 10, the interiors of members 10, 12 communicating via a fuel-air inlet 13 so that in use fuel and air flow from member 12 into member 10 where they mix and are then ignited adjacent the outlet by a spark passing between electrode 16 and outlet 14. The member 12 has a gas jet 18 and at least one aperture 19 for combustion air.
Patent GB-1344820-A (GB)
Title: Mining
IPC: E21B10/40
Filed: 1969-12-30
Abstract: 1344820 Mining MINING DEVELOPMENTS AG 21 Dec 1970 [30 Dec 1969] 63237/69 Heading E1F A method of winning reef or vein type material deposits comprises the steps of cutting a first series of adjacent holes of substantially rectangular transverse section above or to one side of the reef or vein, cutting a second series of similar adjacent holes below or to the opposite side of the reef or vein, removing the intervening border of material between the adjacent holes of each series to form first and second slots, and thereafter removing the separated material deposits between the first and second slots. A drill bit 20 screw threaded on a drill rod 15 is used to produce the holes, the drill rod in use being impacted axially and oscillated through an angle not exceeding 22¢. A pilot bit 23 may or may not be provided on nose 22 of the drill bit 20, and the axis of the latter may be coaxial with, or off-set from, the axis of the drill rod. The intervening burden 28 may be removed by means of a manually, or power, hammered wedge 30.
Patent GB-1346432-A (GB)
Title: 4-tube pressure gauges
IPC: G01L7/18
Filed: 1972-03-01
Abstract: 1346432 Pressure gauges M H GLASSPOOL 1 March 1972 [1 March 1971] 5641/71 Heading G1L In a "U" tube monometer one arm of the arms 1, 2 is loaded to a predetermined pressure by a diaphragm or a piston and cylinder apparatus 7, 8 located in a line passing between the arms 1, 2. In an alternative embodiment the piston and cylinder is, in the operative position, Fig. 2, (not shown), located on a line between and above the arms and connected to one of the arms by a valve and, in the inoperative position, is rotated in a vertical plane to a position between the arms.