baber/WOPTO huggingface dataset:
Patent GB-1363508-A (GB)
Title: Thiolcarbamates
IPC: C07D213/75
Filed: 1971-10-14
Abstract: 1363508 Thiolcarbamates BOEHRINGER INGELHEIM GmbH 14 Oct 1971 [15 Oct 1970] 47914/71 Heading C2C Novel compounds (I) (including salts thereof) where R 1  is C 1  to C 7  alkyl, C 2  to C 5  alkenyl or C 5  or C 6  cycloalkyl or cycloalkenyl and R 2  is H or -CHR 2 -CH 2 -NR 1 - signifies a 5 or 6 membered ring system, R 3  is Ph or pyridyl and R 4  is Ph, pyridyl or C 5  to C 7  cycloalkyl or cycloalkenyl are made by standard methods. The following compounds are also prepared: (where R is cyclohexyl). Pharmaceutical preparations especially showing spasmolytic action contain (I) as active ingredient; administration is orally, parenterally or rectally.
Patent GB-1515937-A (GB)
Title: Scrambling speech
IPC: H04K1/06
Filed: 1975-11-24
Abstract: 1515937 Speech scrambling TEKADE FELTEN & GUILLEAUME FERNMELDEANLAGEN GmbH 24 Nov 1975 [23 Nov 1974] 48228/75 Heading H4R Speech is scrambled by interchanging equal duration sections according to a pseudo random number sequence which is modified wherever the encoded speech would resemble clear speech. The speech sections are read-in to registers 0-7 or a direct link D according to the number sequence whilst the numbers of the one preceding and two succeeding registers, in this case 1 and 3, 4 are stored in register K, representing prohibited sections. Each new register address is compared in V with those in K and if match exists unity is added to the addressed number and comparison repeated until no match occurs, whereupon that number opens switches W1, W2 to the corresponding register. Detector BC inserts the direct link D to prevent loss, and repetition may be effected if the level of a section is too low. Reference has been directed by the Comptroller to Specification 1,353,693.
Patent GB-1376520-A (GB)
Title: Anti-lock picking apparatus and lock incorporating the same
IPC: E05B17/14
Filed: 1972-10-19
Abstract: 1376520 Pickproofing locks CRISIS CONTROL SYSTEMS INC 19 Oct 1972 [4 Nov 1971] 48270/72 Heading E2A An apparatus for association with a revolving barrel lock for revolving the same pickproof comprises an enclosure member 37 having a cover 39, side wall portions 40 and attachment means 38 for securing the enclosure member 37 to a door 10 about the lock. An aperture 42 is provided in the cover 39 in alignment with the lock barrel and a shutter member 18 is movable in the enclosure member 37 between a first limiting position and a second limiting position. In the second position and in intermediate positions between the second and first positions the shutter member 18 moves in a slideway of the enclosure member 37 so that relative rotation between the members 18, 37 cannot take place but in the first position the shutter member is clear of the slideway and relative rotation is possible. Also in the second position the shutter member 18 opens the aperture 42 in the cover 39 for insertion of a key into the lock barrel but in the first position it closes the aperture. A gate member 19 for rigid connection to the lock barrel for rotation therewith is also provided and guides the shutter member for rectilinear sliding movement, the arrangement being such that with the shutter member 18 in its second position a key K is inserted in the barrel of the lock, the shutter member then being moved to its first position and rotated whereby the gate member 19 and lock barrel are rotated to free the lock. The key, being fore shortened is removed from the lock barrel by a key retriever 55 which comprises a rigid blade 57 and a hooked spring 59 which co-operates with a slot 54 in the head of the key. The cover may be provided with a hasp 48 and the shutter member 18 an aperture 49 for the reception of a padlock (Fig. 2, not shown) to retain the shutter member 18 in its second position. The lock as disclosed is of the split tumbler type (Fig. 4, not shown).
Patent GB-1204274-A (GB)
Title: System for detecting small openings in hollow bodies
Inventor: PHILLIPS BRYCE WELDON
IPC: G01N21/954
Filed: 1968-10-14
Abstract: 1,204,274. Detecting flows photo-electrically. REYNOLDS METALS CO. Oct.14, 1968, No.48656/68. Heading G1A. In a method and apparatus for testing for perforations the side-walls and bottom of an open ended hollow body 10 having highly reflective interior surfaces the outside of the body is immersed in light and any light passing into the can through a perforation is detected in a sensor 24 mounted on the can side of a member 22 arranged to be brought into light tight engagement with the open end. The body may be pressed against a conical surface 18 to form the light seal by a transparent plate 20, and any detected light may control "accept" "reject" mechanism. The sensor may be protected from damage from the light when a can is not in position by switching off the lights or by a cover. The body may be passed through a succession of stations in which the hold-down plate is differently orientated.
Patent GB-1286888-A (GB)
Title: Injection device for injection moulding machine
Inventor: AOKI KATASHI
IPC: B29C45/23
Filed: 1970-10-14
Abstract: 1286888 Injection moulding K AOKI 14 Oct 1970 [14 Oct 1969] 48926/70 Heading B5A Injection moulding apparatus comprises an injection chamber having an inlet, a nozzle forming an outlet, a valve member therein which, in one position, closes the outlet and leaves open the inlet and, in another position, closes the inlet and leaves open the outlet, a plunger to inject resin and means feeding resin into the chamber through the inlet. As shown in Fig. 3, the apparatus comprises mould parts 101, 102, a plasticizing cylinder 9, an injection chamber 1 and a plunger cylinder 5. A valve member 11 is located in chamber, is operated by cylinder 12 and has a flange valve 15 to close inlet 3 and a needle valve 14 to close nozzle outlet 2. With valve 15 open, valve 14 closed, resin is forced through inlet 3 into chamber 1 and cylinder 5 by screw 10 as plunger 6 is retracted by ram 8 of cylinder 7. Then with valve 15 closed and valve 14 open and the mould parts 101, 102 closed and clamped, plunger 6 is advanced and resin injected through passage 3<SP>1</SP>, nozzle 2 and into mould parts 101, 102, screw 10 meanwhile continuing its rotation. Cylinders 9, 5 and chamber 1 are all enclosed by heaters 16.
Patent GB-1520769-A (GB)
Title: Priming chamber for a cartiridge
IPC: F42C19/10
Filed: 1975-11-28
Abstract: 1520769 Percussion caps ETABS LACHAUSSEE and A MAIGRET 28 Nov 1975 [8 July 1975] 48978/75 Heading F3A A percussion cap for a cartridge comprises a priming chamber formed by a tubular body 1, a base 2 containing vent holes 3, and a pressed anvil 5. The anvil has an upper part 7 of conical or pyramidal shape and a lower part 6 which is cylindrical or is conical and formed with stiffening ribs.
Patent GB-1534946-A (GB)
Title: Converter circuits
IPC: H02M3/335
Filed: 1976-11-24
Abstract: 1534946 Automatic voltage control WESTERN ELECTRIC CO Inc 24 Nov 1976 [8 Dec 1975] 49071/76 Heading G3R [Also in Divisions H2 and H3] Regulation of the output of a leakage transformer-coupled self-oscillating D.C. to D.C. transistor converter is achieved by comparing a voltage proportional to the output voltage with a reference voltage in an error detector 481, the proportional voltage being obtained from a voltage divider network of resistors 437, 438 across the converter output, and if this derived voltage differs from the reference voltage causing the error detector to supply a signal to a light emitting diode 468 optically coupled to a photo-transistor 466 on the primary side of the converter transformer. This phototransistor conducts when it receives light from the light emitting diode and modifies the base voltage of a transistor 461 thus causing the conduction time of the converter switching transistor 464, controlled by transistor 461, to vary, keeping the output of the converter at the desired level.
Patent GB-1474222-A (GB)
Title: Process for manufacturing clad blocks or slabs
IPC: B22D23/04
Filed: 1974-06-10
Abstract: 1474222 Casting composite articles KLOCKNER-WERKE AG 10 June 1974 [30 June 1973] 49138/76 Divided out of 1474221 Heading B3F  A process for the manufacture of clad blocks or slabs comprises arranging an annular claddng plate 11 in a casting mould 1 with the axis of the plate extending in a generally vertical direction and with a clearance between the lower axial end face of the cladding plate and the adjacent bottom of the mould, and subsequently pouring molten base material into the mould so as to fill the clearance, to fill the space enclosed by the annular cladding plate and to submerge the upper axial end face of the plate. During subsequent solidification and cooling, a gap (6, Fig. 1, not shown) forms between the cladding plate and base material but the engagement of the base material with the ends 5, which may be chamfered, of the plate form seals to prevent oxidation in the gap so that during subsequent rolling of the block or slab the plate becomes bonded to the base material.
Patent GB-1261470-A (GB)
Title: Forming die
Inventor: ASH BERNARD EDWIN
IPC: B31F1/00
Filed: 1970-10-16
Abstract: 1,261,470. Moulding tubes; seaming non- metallic sheet material. STANDARD TELE. PHONES & CABLES Ltd. 16 Oct., 1970, No. 49307/70. Headings B5A and B5K. [Also in Divisions F2 and H1] A die, for forming a flat strip of flexible material, e.g. paper, plastics, into a tube with a longitudinal seam, e.g. for cable insulation, comprises a block of material 1 with a circular cross-section bore 2 and a transversely tangential communicating slot with decreasing depth from the input end to the output end, the slot wall 4 remote from the bore and the bore axis being mutually angled at the input end and parallel at the output end. The bore axis may be straight and the slot wall 4 curved, or vice versa. The strip of flexible material is fed into the input end and initially a helical seam is formed as the strip is guided by the slot wall 4 and is at an angle to the bore 2. As the angle decreases towards the output end, this seam tends toward a longitudinal seam which results at the output end. Alternatively, the slot wall 4 forms part of another circular cross-section bore, both bores following a curved path. Here the strip is initially at an angle to both bores. For multi-layer tubes, each bore increases in diameter to the output end, so that the initial layers are smaller than the succeeding layers.
Patent GB-1016349-A (GB)
Title: Fluid flow control valve
IPC: F15B11/17
Filed: 1964-12-04
Abstract: 1,016,349. Valves. NEW YORK AIR BRAKE CO. Dec. 4, 1964 [Jan. 16, 1964], No. 49347/64. Heading F2V. In a valve for maintaining a substantially constant flow from two variable rate supply pumps, e.g. in motor vehicle power-steering circuits driven by the vehicles' propulsion engine, a spool 29 is biased to the left within a bore 17 by adjustable spring 41 and is displaced therefrom by pressure from a first pump acting at the primary inlet 12, against downstream pressure in outlet 14 acting in chamber 42 via spool passage 43, whereby the flow rate therefrom to primary outlet 14 is progresively increased as equi-spaced inclined flats 36 on the spool land 33 are uncovered at orifice A whilst, simultaneously, the flow from a second pump at secondary inlet 13 to chamber 22 is progressively decreased, via orifice C to outlet 14, and is progressively increased, via orifice B, chamber 21 and non-return valve 27 to secondary outlet 15, by the respective covering and uncovering of similar flats 38 and 37 in spool land 34. An exhaust port provided with a pressure-relief valve is sited on the downstream side of orifice A.
Patent GB-1445143-A (GB)
Title: Electrophotographic toner transfer and fusing apparatus and  method
IPC: B65H7/06
Filed: 1973-10-24
Abstract: 1445143 Electro-photography ITEK CORP 24 Oct 1973 [2 Nov 1972] 49515/73 Heading G2H Developed electrostatic toner images on a photoconductive member, which may be a drum 50 or a web, are transferred to copy paper 88 by intermediate member 80, which has an outer layer with a surface free energy below 40 dynes/cm., a hardness of 3 to 70 decrometers and a heat capacity below 3À1 calories x 10<SP>-3</SP>/cm.<SP>2</SP>‹C. The toner image on the intermediate member is heated to melting, then transferred to the copy paper under pressure. The intermediate member may be a rotating cylinder or an endless belt, and may be surfaced with a fluorelastomer or silicone rubber.
Patent GB-1523436-A (GB)
Title: Three dimensional display system
IPC: H04N13/00
Filed: 1975-10-24
Abstract: 1523436 Three dimensional display system DEFENCE SECRETARY OF STATE FOR 24 Oct 1975 [15 Nov 1974] 49609/74 Heading H4F A system for observing an apparent threedimensional image includes a display for producing in sequence two images of a scene viewed from different but similar viewpoints, a polarizer and liquid crystal cell arrangement for acting as an optical shutter on application of electric voltages to the arrangement, whereby images may be separately received by the two eyes of an observer, and control circuits for presenting the two images on the display in synchronism with the application of voltages to said polarizer and liquid crystal cell arrangement whereby each eye of the observer may receive its appropriate image. In one embodiment, the display comprises a cathode-ray tube 1, a polarizing layer 2 and a twisted nematic liquid crystal cell 3 being mounted on the front face of the tube 1. The display is viewed through glasses 10 provided with polarising lenses 11, 12.
Patent GB-1379825-A (GB)
Title: Interlocking stones and the like
IPC: E01C5/00
Filed: 1972-10-27
Abstract: 1379825 Paving blocks BAUTYPEN AG 27  Oct 1972 [29 Oct 1971] 49678/72 Heading E1B Interlocking paving blocks each comprising an upper rectangular portion 4 and a lower portion 5 are formed in the lower portion with projections 3 on two sides and recesses 2 on the other two sides, the relationship between the angles α and # of the lines defining the projections and recesses being such that a block which is interlocked on three edges with other blocks can be lifted obliquely in the direction of arrow 1. This is always possible if α is less than or equal to #. Projection and recesses defined by concave or convex surfaces or including steps are also possible and each side face may have more than one projection or recess. The projections may be triangular trapezoidal or arcuate in plan.  For Figures see next page
Patent GB-1412313-A (GB)
Title: Memory device using ferromagnetic substance lines
IPC: H01F10/06
Filed: 1973-10-25
Abstract: 1412313 Magnetic storage devices KOKUSAI DENSHIN DENWA KK 25 Oct 1973 [26 Oct 1972] 49684/73 Heading H3B A magnetic storage element, Fig. 3B, comprises two crossed conductors 1, 3 of rectangular cross-section, one conductor being non-magnetic while the other is a thin film of conductive ferromagnetic material having an easy axis of magnetization 6 along its length. The storage field may be concentrated by a ferromagnetic keeper layer 5 deposited on the outer and side surfaces of non-magnetic conductor 1. Dimensional conditions for ferromagnetic conductor 3 are a width of between 20 to 200 microns and a thickness of between 5000Š to 2 microns. A matrix of storage elements is described, Fig. 8. in which parallel ferromagnetic conductors 12 form word lines, and orthogonal non-magnetic conductors 14 form digit lines, the crossed conductors being insulated from each other by an SiO layer 13 and the assembly being formed on a glass or plastics substrate 11. A manufacturing process involves photo-etching a magnetic foil or deposited layer of ferromagnetic material to form the ferromagnetic conductors 12, and the addition of an insulating layer 13 and a copper, gold or silver layer, in turn, by deposition or adhesive. The upper layer is then photo-etched to provide the conductors 14. Finally a ferromagnetic keeper layer 15 is deposited on or adhered to each non-magnetic conductor 14.
Patent GB-1160907-A (GB)
Title: Hydraulic System
IPC: F15B11/00
Filed: 1966-11-10
Abstract: 1,160,907. Hydraulic apparatus. INTERNATIONAL HARVESTER CO. Nov. 10, 1966 [May 6, 1966], No. 50372/66. Heading F1P. A hydraulic system includes a pair of piston- and-cylinder units, or rams, 11, 12 that are fed with working fluid by a pump 14 through control valves 100, 200, which are mechanically coupled to manually-operated valves 300, 400, respectively, a pressure-operated by-pass valve 17 being furnished on the output side of the pump so that when the rams are rendered inoperative by the control valves the pump can be unloaded. The valve 17 is connected by a spring 31 to an actuator, or operating means, 30 to which pressure is communicated from the pump through a pipe, or line, 33 so as to close the valve whenever either of the rams is set in operation. When neither of the rams is in operation the pressure in a line 16 exceeds that in the line 33 due to frictional losses, thereby rendering the valve 17 open.
Patent GB-1359540-A (GB)
Title: Heating a gas
IPC: H05B7/18
Filed: 1971-10-29
Abstract: 1359540 Arc heaters; discharge treatment BRITISH TITAN Ltd 21 Aug 1972 [29 Oct 1971] 50521/71 Heading H5H [Also in Division C4] The electrodes 1 and 6 of an arc heater are cooled by water which has its heat transferring ability increased above a specified amount by the addition of a nucleating agent. The heat transferring ability is determined by immersing a platinum wire 0À002 inch in diameter and 3 inches long in a sample of the coolant water and slowly increasing the applied voltage until the wire burns out. The water is suitable only if the product of the burn-out voltage and the current is greater than 100 watts. The nucleating agent facilitates bubble formation and thereby reduces the tendency for an insulating vapour film to form on the electrode surface. Suitable nucleating agents are one or more of the following; aliphatic alcohols, e.g. ethanol, propanol or butanol; certain organic acids, e.g. tannic acid; ketones, e.g. methyl ethyl ketone; mineral acid salts such as magnesium sulphate, aluminium sulphate and polyphosphates; and hydrazine. The water is preferably demineralized by cationic and anionic exchange before addition of the nucleating agent. The electrodes are formed of a silvercopper alloy having 20% by weight of copper. Gas to be heated is introduced to the gap 15 between the electrodes 1, 6 by tangential passages 14 leading from an annular chamber 12. The coolant water is passed through passages 3, 7 in the electrodes or over the external surface of the electrodes. Metal oxide pigments produced by the vapour phase oxidation of a metal halide may be produced with the arc heater. For eaxmple oxygen may be heated in the arc heater and then reacted with more oxygen and titanium tetrachloride vapour to form titanium dioxide. The arc heater may be used as an arc plasma welding torch.
Patent GB-1496675-A (GB)
Title: Prevailing torque fastener
IPC: F16B39/30
Filed: 1974-12-26
Abstract: 1496675 Locking screws STANDARD PRESSED STEEL CO 26 Dec 1974 [26 Dec 1973] 51051/74 Heading F2H A prevailing torque type fastener comprises a threaded shank 10 with at least one locking portion wherein the thread root 18A is axially displaced relative to the normal helix defined by the root 18 and wherein the crest 20A is also similarly displaced, not necessarily to the same extent, and is axially thicker than the remainder of the crest 20. The non-loaded flank 24A of the displaced thread may be formed with a bulge defined by surfaces 30, 32, 33.
Patent GB-1132993-A (GB)
Title: Photoconductive material
IPC: G03G5/082
Filed: 1965-12-02
Abstract: 1,132,993. Electrophotographic materials. RANK XEROX Ltd. 2 Dec., 1965 [28 Dec., 1964], No. 51206/65. Heading H1K. [Also in Division C7] A photo-conductive material consists of an amorphous film of an alloy of 0À0001-5% by weight of Tl, balance Se. A xerographic plate may be formed by coating the material, e.g. by vacuum deposition, casting or hot-dipping, on a conductive substrate such as Al, Mg, brass, steel, Cr or on a non-conductive substrate such as glass, paper, plastics sheeting coated with Au, tin oxide or copper iodide. When positively charged, the plate is sensitive to X-rays but insensitive to visible light and when negatively charged, the plate is sensitive to visible light and has a high fatigue value.
Patent GB-1450533-A (GB)
Title: Stereo sound reproducing apparatus
IPC: H04H20/88
Filed: 1972-11-08
Abstract: 1450533 Stereophonic systems FERROGRAPH CO Ltd 6 Nov 1973 [8 Nov 1972] 51395/72 Heading H4R In apparatus for providing at least two stereophonically related output signals from two or more input signals, crosstalk at the higher end of the audio frequency band is introduced between the output signals and is controlled automatically by an arrangement including at least one frequency selective filter to increase as the amplitude of at least one of the input or output signals decreases. This makes the output signals more mono and provides an improved signal/noise ratio at low signal levels. As shown in Fig. 1, a signal source 10, e.g. a tape reproducer or record player provides outputs A, B on channels 11, 12 respectively, which are supplied to output terminals 13, 14 and are also combined at 15 to provide a signal to control attenuators 18, 21. Signal A is supplied via high pass filter 17 to attenuator 18 and signal B is supplied via a similar filter 20 to attenuator 21, the outputs of attenuators 18, 21 being added at 19, 22 to the signals B, A, respectively. The attenuators are controlled so that at high signal levels they pass no signal to units 19, 22. In a modification, Fig. 2 (not shown) the outputs of the filters 17, 20 are fed directly to the summing units 19, 22 and via controllable attenuators 18, 21 to subtracting units supplying outputs 14, 13 respectively. In this case maximum crosstalk is introduced by the summing units and is progressively removed by the subtracting units. Figs. 6 and 7 (not shown) illustrate applications of the arrangement to a quadraphonic system. Radio system.-A+B and A-B signals are supplied by the receiver 30 (Fig. 3) to a conventional decoding matrix 33 which includes summing and subtracting units 34, 35 respectively, the A-B signal being passed through a filter 39 which reduces the higher frequency components. Filter 39 is shunted by an attenuator 40 which is controlled by a signal derived at 41 from the A+B signal so that when the A+B level is high the impedence of 40 is low and the filter 39 has no effect. When the level of A+B falls the filter gradually takes effect and crosstalk is introduced into the system. In a modification, Fig. 4 (not shown) the filter 39 is operative at all times and attenuator 40 controls a complementary filter, the outputs of the two filters being added. In a further arrangement, Fig. 5 (not shown) the output of that frequency discriminator in the receiver is fed to a conventional stereo decoder and also provides a control voltage for a field effect transistor in series with a capacitor, connected across the A and B outputs of the decoder. The FET may be replaced by a phototransistor, the control circuit controlling the illumination thereof. In another arrangement Fig. 12 (not shown) the stereo output signals are used to control signal generators which control attenuators determining the amount to be added to the output from the other channel.
Patent GB-1319497-A (GB)
Title: Substituted acid anilides
IPC: C07C233/02
Filed: 1970-10-29
Abstract: 1319497 Anilides BADISCHE ANILIN- & SODA-FABRIK AG 29 Oct 1970 [30 Oct 1969] 51410/70 Heading C2C Compounds of the general formula (R = C 2-6  alkyl or alkenyl; X = Cl, Me, OMe and/or CF 3 ; n = 1 or 2; m = 1-4 or 8) are prepared by acylating the corresponding anil. These compounds are selective herbicides, and may be used in the form of compositions containing them together with a carrier.