baber/WOPTO huggingface dataset:
Patent GB-1132980-A (GB)
Title: Apparatus for reducing undesirable products of combustion from internal-combustion engines
IPC: F01M13/00
Filed: 1965-12-01
Abstract: 1,132,980. Treating charges. R.E. McMAHON, D.D. BINDER and J.W. HURON [trading as McMAHON, BINDER & HURON], Dec.1, 1965 [May 17, 1965], No. 51076/65. Heading F1B. Fumes from a sealed crank-case flow through a combined non-return and manually adjustable metering valve unit 3 and a tube 52, to a chamber 2 where they mix with a portion of the engine exhaust gases, tapped from the exhaust manifold J through a tube 53, in which they are cooled. The resultant mixture from chamber 2 is drawn into the inlet manifold F. The crank-case fumes flow through a frusto-conical tube, Fig. 7 (not shown), located within chamber 2, the spacing between the downstream end of the chamber and the downstream and larger end of the tube being adjustable to provide a means for regulating the proportion of exhaust gases flowing through the chamber. If the pressure in the crank-case exceeds a certain value, fumes pass through a bore Fig. 10 (not shown) in the closure 4 for the engine oil replenishment opening, a non-return valve and a tube 45 to a point downstream of the air filter H. The crank-case fumes may be led to chamber 2 from a plugged opening 16 in the side of closure 4 rather than from the crank-case itself. The respective inlets to the chamber 2 served by tubes 52, 53 may be interchanged. In modifications Figs. 12 and 13 (not shown), chamber 2 is dispensed with, the tubes 52, 53 discharging either directly and separately into the inlet manifold or into two limbs of a T pipe, the third limb discharging into the inlet manifold.
Patent GB-1495619-A (GB)
Title: Induction heating apparatus comprising a static converter
IPC: H05B6/10
Filed: 1975-12-12
Abstract: 1495619 Protecting inverters; supply systems for induction heating TOCCO-STEL 12 Dec 1975 [17 June 1975] 51119/75 Headings H2F and H2H In induction heating apparatus comprising a rectifier 1 supplying D.C. to a charging inductor 9 feeding a bidirectional switch comprising a thyristor 3 and inverse diode 4 and having a series LC commutating circuit 5, 6, connected in parallel with the bidirectional switch 2, the inductor 6 forming or being coupled to an induction heating coil 15, protection is made against spurious turn on of the thyristor 3. This may take the form of an inverse diode 20, Fig. 4, in series with a capacitor 21 across the charging inductor 19 or an RC circuit (25, 26) connected across the inductor 6. As described, thyristor 3 is turned on periodically so as to provide full cycles of oscillation at a frequency 20-40 kHz) determined by 5, 6, the period of which is more than twice the turn-off time of thyristor 3. Waveforms (Fig. 2, not shown) indicates that if inductor 6 is lightly loaded, the voltage across the bidirectional switch 2 at the end of a complete cycle may be sufficient to cause spurious turn on of the thyristor 3. This is prevented in Fig. 4 by diode 20 and capacitor 21, which is initially charged via resistor 23, The voltage stored across capacitor 21 may be used to supply power to an auxiliary thyristor 24 for triggering the main thyristor 3. In Fig. 3 (not shown) resistor 23 is connected in parallel with capacitor 21 across charging inductor 9 on the positive side. Components 22 and 24 are omitted. In Fig. 5 (not shown) a snubbing circuit (25, 26) is connected across inductor 6 to prevent spurious dv/dt triggering of thyristor 3.
Patent GB-1328575-A (GB)
Title: Cutting machine for french beans and similar vegetables
IPC: A23N15/12
Filed: 1971-11-04
Abstract: 1328575 Cutting machine for beans FRANCO-EUROPEENNE DE MATERIAL POUR L'INDUSTRIE ALIMENTAIRE 4 Nov 1971 [6 Nov 1970] 51363/71 Heading A4C [Also in Division B8] A cutting machine for French beans and similar vegetables comprises a feeding device (1), Fig. 1 (not shown), for aligning and uniformly distributing the vegetables to a cutting head (2) comprising a pair of substantially identical , horizontal and parallel drums 7, 8 synchronously driven in opposite directions, each drum carrying a series of radial, equidistant cutting blades 11 and bars 14 disposed between adjacent blades, the bars on one drum acting as cutting boards for the blades on the other drum, the axes of the drums being located in an oblique plane, and a discharge end 16a of the device opening directly into a space between the drums. A strip of rubber 15 is stuck to part of each bar to enable a certain penetration of each blade, and when the blades are worn down they may be adjusted by a corresponding adjustment of a screw 12. The feeding device comprises a vibrating trough 4, a base (16), Fig.3 (not shown), consisting of longitudinal channels (17), a series of parallel wires (19) at the feeding end of the device, and a tipping plate (16a) at the discharge end. The trough is activated by a vibrator (6) driven by a motor (6a) connected to a frame (3). V-shaped deflectors (18) and the longitudinal channels (17) aid the aligning of the vegetables before they are discharged into the cutting zone. The wires (19) may be replaced by a mash of expanded metal defining elongated openings parallel to the V- shaped channels (18), and the feeding device may comprise round-bottomed channels with upwardlyflared side walls.
Patent GB-1371932-A (GB)
Title: Torque-counterbalanced earth drilling
IPC: E21B10/04
Filed: 1971-11-15
Abstract: 1371932 Universal joints; toothed gearing TONE BORING CO Ltd 15 Nov 1971 [13 May 1971] 52859/71 Headings F2U and F2Q [Also in Division E1] In earth boring apparatus comprising a cutter 160 rotated about its own axis and about the axis of the apparatus by a motor 120 fixed to a non-rotary central member 110 the torque on the member is negligible. A casing 130 is secured to the member 110 and the motors 120 are mounted on the casing, each motor driving gearing I1, I2, II1, II2 housed in a rotary carrier 131. A gear IV1 rotating with each gear II2 drives a gear IV2 on a sleeve 150 rotatable about the member 110 and having a gear VI driving a gear V2 on the shaft of a cutter. Each cutter with its shaft and gear V2 is supported in a carrier 140 rotated about the member 110 by a gear III1 attached to the rotary carrier 131. The shafts of the cutters may be inclined so that the leading side of each cutter penetrates deeper into the borehole bottom than its trailing side (see Fig. 7), the shaft having external splines V4 engaging internal splines V3 in the gear V2 and being a loose fit in the gear. The carrier 140 has a core breaker 142 and carries nozzles 141 for flushing liquid supplied by hose 4. Flushing liquid is withdrawn through the pipe 5, air being supplied by a pipe 6 to assist the withdrawal. The machine is supported from a derrick by a chain or pipe and when used in a borehole filled with liquid a member having adjustable buoyancy is interposed between the support and the machine to adjust the boring thrust. A drilling collar may also be interposed between the support and machine. The gears may be immersed in oil and the wall of the casing 130 carries a piston or diaphragm to maintain the oil at the pressure of the surrounding flushing liquid.
Patent GB-1419391-A (GB)
Title: Lithoprinting plates
IPC: G03G5/14
Filed: 1972-11-17
Abstract: 1419391 Coated printed plates RICOH KK 17 Nov 1972 [17 Nov 1971] 53102/72 Heading B2E [Also in Divisions B6 and G2] A lithographic printing blank, or a printing plate prepared from such a blank, comprises a cellulosic support, a surface image-receiving layer and an intermediate layer comprising a non-acrylic organic polymeric material, having at least two hydroxyl groups, and a compound containing at least two isocyanate groups. The image-receiving layer may be photoconductive, and consist of zinc oxide in a resin base. Preferably the support has a coating of a hydrophilic material, which may be electrically conductive such coatings may be present on both sides of the support. Lists of polymers which can be used in the intermediate layer and of hydrophilic coating materials are given.
Patent GB-1127320-A (GB)
Title: Improvements in or relating to fuel-air mixture intake systems for internal combustion engines
Inventor: LAWRENCE GEOFFREY LLOYD
IPC: F02M35/10
Filed: 1965-12-15
Abstract: 1,127,320. Spray carburetters; induction systems. ZENITH CARBURETTER CO. Ltd. Dec. 7, 1966 [Dec. 15, 1965; May 12, 1966], Nos. 53251/65 and 21174/66. Heading F1B. Mixture from a constant suction carburetter flows through a primary conduct 24 and a secondary conduct 22, throttle valves 26, 21, in which open in succession. The primary conduct 24 contains a heater 25. The trottle valve 21 is operated from the spindle 28 of the valve 26 through a lost motion device (32) Fig. 5 (not shown) whereby valve 21 begins to open when valve 26 is nearly wide open. Valve 26 may be situated in the pipe 22 upstream or downstream of the connections of pipe 24 thereto. In a six cylinder engine Fig. 7 separate carburetters 45, 47, feed two manifolds 42, 43, each connected to three cylinders, joint branch pipes 51, 55, 56 forming the primary circuits inter-connecting the manifolds.
Patent GB-1109570-A (GB)
Title: Expansible bolt anchoring device
Inventor: TAYLOR CECIL ARTHUR
IPC: F16B13/00
Filed: 1965-12-15
Abstract: 1,109,570. Anchoring bolts. RAWLPLUG CO. Ltd. 15 Dec., 1966 [15 Dec., 1965], No. 53276/65. Heading F2A. An expansible bolt anchor comprises a cylindrical shell 1, formed from a plurality of segments, and a plastics ferrule 10 at one end to hold the segments together. The ferrule is formed with concentric inner and outer sleeves, or sets of fingers, 12 and 11 respectively, joined at one end 17. The inner sleeve 12 is shorter than the sleeve 11, and is formed with a protuberance 14 which locates in grooves 16 in the segments. The end 17 may be formed with an outwardly extending peripheral flange to act as a washer. The inner surface of the sleeve 12 may be convex in longitudinal section.
Patent GB-1442848-A (GB)
Title: Flexible shaft
IPC: F16C1/06
Filed: 1973-11-19
Abstract: 1442848 Collapsible steering columns SAABSCANIA AB 19 Nov 1973 [27 Nov 1972 (2)] 53520/73 Heading B7H [Also in Division F2] In a flexible shaft, which may be used in the steering column assembly of a motor vehicle, (Fig. 7) the torque-transmitting member is a flexible tube 12, Fig. 3, closed at each end by the attachment of coupling members 6, 7, and the bore of tube 12 is supported against inward deformation by a filler core 13 having a central body 16 from which a series of flanges 17 extend radially outwards and are in frictional engagement with the bore of tube 12. The body 16 may consist of a continuous flexible rod, or alternatively the core 13 may be composed of a series of flange discs 24, Fig. 6, having separate spherical body members in mutual abutment. Sleeve members 18, 19, 20 may be secured externally to the tube 12 as means of guiding the shaft axis within stationary bearings (not shown) and may also be associated with thrust collars (9a, 10a, 10b), Fig. 2 (not shown), for resisting longitudinal stresses. Between such collars, the shaft may be pro-stressed during assembly. A rigid member 21 may provide additional internal support to the tube 12 within the bearing sleeve 19. Where the shaft is curved, a fixed curved guiding member may be fitted externally. The flexible tubing 12 may be composed of a cross-lapped braided material, Fig. 4, having wire or band portions 22, 22<SP>1</SP>, braided together with portions 23, 23<SP>1</SP>. There may be an outer protective sheath 25. and the gap 25 may contain a lubricant. In the embodiment shown in Fig. 8, the steering column is capable of flexible deformation both in its lower portion, and also in its upper portion, to the position 131, Fig. 8, thereby promoting driver safety in the event of a vehicle collision.
Patent GB-1149426-A (GB)
Title: Improvements relating to mass spectrometry
Inventor: BARBER MICHAEL
IPC: H01J49/02
Filed: 1966-12-01
Abstract: 1,149,426. Mass spectrometers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 24 Nov., 1967 [1 Dec., 1966], No. 53876/66. Heading H1D. In a double-focusing mass spectrometer metastable mass peaks are recorded utilizing ion decompositions occurring both in the ion source 2 and in the region A between the ion source and the electrostatic analyser 5 by producing a scanning variation of the voltage ratio between the ion accelerating voltage and the electrostatic analyser deflection voltage, e.g. by producing a scanning variation of the ion accelerating voltage unaccompanied by complementary variation of the electrostatic analyser deflection voltage. The varying ion collector output is recorded in time correlation with the scanning variation. The collector output and also the voltage ratio may be periodically sampled and presented in digital form (Fig. 3) and a peak top sensing unit may be included (Fig. 5). The recording circuit may include a threshold detector responsive to the collector output rising above a set value towards a peak (Fig. 6). In a fully automated system the magnetic field of the magnetic analyser is scanned, preferably by decreasing the magnetic field exponentially, and as each peak is detected an accelerating voltage scan is made (Fig. 9). Each peak is arranged to have a flat top where a change in magnetic field produces little or no change in collector ion current, e.g. by suitable adjustment of the source and collector slits 4, 7. Provision may be made for discontinuing the magnet field scan for the duration of each voltage scan without interrupting the magnet current by use of a flux stabilizing arrangement (Fig. 10). A mass marker may also be included presenting mass identification in digital form. Examples are given of specific circuitry for suitable threshold detectors for the voltage sweep generator and for the accelerating voltage supply (Figs. 11 and 12).
Patent GB-1095747-A (GB)
Title: Improvements in semiconductor transistors
Inventor: PRICE JOHN CLIFFORD
IPC: H01L29/00
Filed: 1966-12-01
Abstract: 1,095,747. Semi-conductor devices. STANDARD TELEPHONES & CABLES Ltd. Dec. 1, 1966, No. 53943/66. Heading H1K. At least the base region of a silicon transistor contains lithium as a dopant, in addition to the dopant which determines the conductivity type of the region. It is stated that the presence of the lithium minimizes the detrimental effect of radiation damage on the transistor's behaviour. In the preferred form an NPN silicon planar transistor is made by diffusing boron through a suitably photo-etched mask into a phosphorus-doped epitaxial layer of silicon on a silicon substrate, thus to form a P-type base region. More phosphorus is then diffused through a further mask into the barium-doped region, to form the N-type emitter. Lithium is then diffused into the reverse side of the crystal at 500‹ C. to a concentration of 10<SP>15</SP> atoms/c.c., and it is stated that this has the effect of reducing the carrier recombination rate at centres in the base region which comprise a phosphorus atom and a radiation induced vacancy or interstitial. After application of contacts the transistor is encapsulated.
Patent GB-1193989-A (GB)
Title: Container Closure Assembly Comprising a Hollow Capsule
IPC: B65D51/28
Filed: 1967-11-28
Abstract: 1,193,989. Compartmented containers; container closures. L'OREAL. 28 Nov., 1967 [6 June, 1967], No. 54211/67. Headings B8D and B8T. A moulded stopper comprises a cylinder 3 and a cap 5 slidably mounted in an annular body 4 on the mouth of a bottle 14. Following removal of a protective cap 2, pressure is exerted downwards on the cylinder 3 so forcing the cap 5 out of the body 4. A gap separates the cylinder 3 and the skirt of the cap 5, the latter being positioned between the cylinder and body 4. When the skirt of the cap 5 ceases to be gripped by the inner surface of the body 4 the cap separates from the cylinder 3 so allowing mixture of a component 20 in the cylinder with the bottle contents. The cylinder 3 can then be removed from and replaced in the annular body 4, thus acting as a simple stopper. The protective cap 2 is retained in position by a tamper proof band 19, torn off to permit the cap to be removed.
Patent GB-1293670-A (GB)
Title: Improvements in or relating to electro-acoustical transducers
IPC: H04R7/18
Filed: 1970-11-17
Abstract: 1293670 Diaphragms; piezo-electric transducers SIEMENS AG 17 Nov 1970 [5 Dec 1969] 54534/70 Heading H4J An electro -acoustic transducer has a diaphragm 1 gripped in a region intermediate its edge and its centre, and the diaphragm 1 has a vibration node corresponding to a harmonic (other than the fundamental) of the diaphragm 1 which provides a nodal line in a part of the diaphragm remote from the region where it is gripped. The harmonic is in the useful frequency band of the diaphragm, e.g. 100 Hz to 3,500 Hz. A relatively smooth response is thereby obtained over the useful frequency band. Fig. 1 shows a microphone with a titanium diaphragm 1 carrying a layer 2 of piezoelectric ceramic or piezo-resistive material. The diaphragm 1 is gripped on opposite sides by annular extensions 6, 7 and 8, 9 of an elastic bearing 3, preferably of silicon rubber. Weakening grooves 10, 11 and 12, 13 may be provided. A metal support plate 15 has a surrounding flange 16. A centre contact 20 is disposed in an insulating body 19. The electrodes of piezoelectric layer 2 are connected by wires 21, 22 to an amplifier 23. A diode 24 is incorporated. Fig. 3 shows a diaphragm M having a piezoelectric layer P vibrating in a second harmonic mode. A nodal circle is adjacent the gripped area. The diaphragm M deforms the bearing L.
Patent GB-1293955-A (GB)
Title: Position control apparatus
IPC: H03K5/26
Filed: 1969-11-07
Abstract: 1293955 Positioning system VYZKUMNY USTAV OBRABECICH STROJU A OBRABENI 7 Nov 1969 [8 Nov 1968] 54715/69 Heading G4H In a positioning system of the type in which the required multi-decade position of a member is set up on preselector switches 21, 22, 23 (Fig. 1), and the actual position is represented by the phase of the signal from resolvers 13, 14, the zero position of the system is variable by setting zero setting switches 7, 8 to zero at the required starting position. As described, phase displaced clock pulses on parallel leads are derived from a source of clock pulses 1 and fed to the switches 21, 22, 23 to select for each decade one of the clock pulses. Pairs of signals each pair being phase displaced 36 degrees with respect to another pair and 90 degrees with respect to each other are fed to the zero setting switches, each switch selecting one pair for feeding to the stator windings of the gear coupled resolvers. The phase signals from the rotors are fed via filters 15, 16 and shaping circuits 17, 18 to integrating circuits 19, 20 to convert them to triangular form these signals being added in circuits (32, 40 and 45, 55, Fig. 2, not shown) to correcting voltages which arise since any movement of the zero setting switch of the second most significant decade, e.g. through 36 degrees necessitates a correction of 3.6 degrees being made to the phase of the signal from the rotor of the highest decade. The signals from the summation circuits are converted to square waveform, the trailing edges of these wave forms being compared in bi-stable circuits (34, 47) to energize relays (36,49) at time coincidence. Adding circuits receiving the triangular waveforms, the correcting voltages and a signal representing the absolute position of the next least significant decade (to give an output representing effectively the resultant position of two adjacent decades) control the anodes of decade tubes, the cathodes receiving the phase displaced clock pulses so that the correct digit is indicated. The third digit is determined by counting clock pulses in a counter (62) from the time a trigger (59) is set by a reference pulse until the trigger is switched by circuit (58). This count is converted to analogue form in a resistor network (61) to correct the time of display of the second decade. The direction of movement required is determined by examining the relative phase of the negative edges of the square wave voltages representing the actual position of the highest decade not set and the preselected position for that decade (Fig. 3, not shown).
Patent GB-1328559-A (GB)
Title: Process for the manufacture of boron halides
IPC: C01B35/06
Filed: 1970-11-18
Abstract: 1328559 Manufacture of boron halides ELEKTROSCHMELZWERK KEMPTEN GmbH 18 Nov 1970 [18 Nov 1969] 54822/70 Heading C1A Boron halides are manufactured when boron carbide and/or if desired its precursors mixed with a boride of an alkali metal, alkaline earth metal or earth metal is reacted with halogen at from 300‹ to 1800‹ C. During this process the reaction proceeds so strongly exothermically that an additional supply of energy is not necessary. Typical changes are 50 to 97% by weight of boron carbide and/or a mixture of boron-oxygen compounds and carbon with 3 to 50% relative to the total amount of boron carbide of the boride and a halogen. A molten mixture of borides and boron carbide can also be used. The process temperature may be controlled by varying the amount of boride added relative to the amount of material reacted. The reaction can be carried out in a reaction furnace in the stationary or fluid state (solid or moving bed) or in a fluidized bed. The starting substances which are to be halogenated are advantageously introduced to the reaction furnace as a mixture having a particle size of 0À1 to 15 mm. and preferably a mixture of the borides and boron carbide or boron-oxygen compound is produced beforehand and pelletized.
Patent GB-1304709-A (GB)
IPC: C07C225/22
Filed: 1970-06-30
Abstract: 1304709 Benzophenones F HOFFMAN-LA ROCHE & CO AG 30 June 1970 [15 April 1970 13 May 1970] 54842/71 Heading C2C Compounds of the general formula (R 1,3 =H, C 1-7  alkyl; R 2 =H, halogen; R=H, protecting group) are prepared by reacting a p-alkylaniline or N-alkyl derivative thereof with a benzoyl or halobenzoyl halide in the presence of a catalyst to give a compound of the formula protecting the nitrogen atom (e.g. by acylation), oxidizing the product and, if necessary, removing the protecting group.