baber/WOPTO huggingface dataset:
Patent GB-1495534-A (GB)
Title: Photoconductive binder layer and method of making and using same for electrostatic imaging
IPC: G03G5/00
Filed: 1974-12-18
Abstract: 1495534 Photo-conductive layers XEROX CORP 18 Dec 1974 [26 Dec 1973] 54683/74 Addition to 1296291 Heading G2C [Also in Division C3] A photo-conductive layer used for electrophotography comprises coated photo-conductor particles dispersed in an insulating binder, the particles being present in an amount of 1 to 25 vol. per cent of the layer and being in the form of a plurality of continuous paths through the layer and comprising a core comprising at least one particle of a photo-conductor surrounded by a coating of an organic material (generally photo-conductive) which transports electrons or holes generated by the photo-conductor, this material being transparent to at least a significant portion of wavelengths to which the photo-conductor is transparent. The layer may be made by dispersing photo-conductive particles (e.g. Se) in the organic material (e.g. polyvinyl carbazole PVK) and grinding the solution to produce Se particles coated with PVK. These particles are dispersed in particles of the binder (e.g. polyester); the binder particles being 5-100 times greater than the coated particles so that the latter particles fill the interstices between the binder particles and form continuous paths. The dispersion is coated on a conductive support and heated to fuse the particles. Other photo-conduction such as CdS, CdSSe, CdSe, ZnS, ZnO, PbO, SbS 3 , Se alloys with Te, Tl, Bi, S, or Sb, Cds doped with Cu, phthalocyanine, anthracene or anthraquinone may be used. Other organic materials such as polymers of vinyl anthracene, acenaphthalene, substituted vinyl carbazoles; pyrenes, anthraquinone, phthalic anhydrides, nitrofluorenones and other nitro substituted aromatic compounds may be used.
Patent GB-1147510-A (GB)
Title: Production of carboxylic acids and their esters
Inventor: SILVERSTONE GERALD ALFRED
IPC: C08G63/553
Filed: 1967-12-02
Abstract: 1,147,510. Succinyl iso-oleyl acids and esters. VICTOR WOLF Ltd. 2 Dec., 1967, No. 54922/67. Heading C2C. Succinyl iso-oleyl acids and esters are prepared by reacting maleic acid or anhydride with iso-oleic acids or their esters. The isooleic acids (or esters) are derived by dehydration from substantially completely hydrogenated castor oil, such that the acids or their esters are free of all but traces of linoleic or more highly unsaturated acids, and the product produced is distilled in conventional distillation equipment without the need of molecular distillation techniques.
Patent GB-1158914-A (GB)
Title: Moulding tool for sizing surfaces of vitreous bodies.
IPC: C03B23/08
Filed: 1966-07-27
Abstract: 1,158,914. Reshaping moulds. RONOR A.G. 27 July, 1966 [18 Aug., 1965], No. 55030/68. Divided out of 1,158.913. Heading C1M. A moulding tool 10 for sizing or otherwise conditioning an outer surface on a preformed solid vitreous body 9 comprises a unitary metal mould 12 with an axial passage extending through the mould, the axial passage having a contact zone 10 intermediate the ends with a continuous inner surface of accurate dimensions to receive the outer surface of the body 9 and heating means 14 outside the mould to heat at least the contact zone 10. An electric resistance wire 14 is wound round the outside of the tool 10 and may extend thereover or may be a single coil to give an inhomogeneity as a predetermined breaking point in the body 9. A heat probe 16 may be used to check the temperature of the tool 10. The tool is preferably enclosed in a jacket 18 and is cooled by compressed air through ducts 17.
Patent GB-1174589-A (GB)
Title: Cathode Ray Tube apparatus including ab Auxiliary Beam Deflection YOke
IPC: H01J29/70
Filed: 1966-12-13
Abstract: 1,174,589. Cathode-ray tube operating circuits. RADIO CORPORATION OF AMERICA. 13 Dec., 1966 [14 Dec., 1965 (3)], No. 55870/66. Heading H4T. [Also in Division H1] A cathode-ray tube arrangement for a colour television receiver includes a circular, toroidally wound auxiliary yoke arranged to be supplied with currents varying with the deflection of the beam, to reduce departures from the desired deflection pattern provided by the main deflection yoke. The auxiliary yoke may consist of a series of uniformly spaced coils 1 to 12, Fig. 3, mounted upon a strip steel ring 43, each coil having a horizontal winding overlaid by a vertical winding. The horizontal deflection windings of coils 1 to 6 are series connected with one another and, in the reverse sense, with those of coils 7 to 12, the vertical deflection windings being connected in a similar manner but with an angular displacement of #/2. The coils are of varying number of turns around the ring, and numerical data on the turns distribution is given. In an alternative structure (Figs. 4 to 6, not shown), each of the auxiliary coils is a single helix, of varying turns density, wound on the ring. In an arrangement for displacing the effective deflection centres with increasing temperature, to maintain colour purity despite temperature-induced shadow mask distortion, the deflection circuit (Fig. 7, not shown), includes a pair of relays and a pair of thermistors, arranged such that, upon first switching the tube on, the auxiliary coils are energized by induction by the main coils, to displace the centre of deflection towards the screen. When one of the thermistors, mounted on the core of the horizontal deflection transformer for example, attains a certain first temperature, its resistance is such as to cause the operation of relay to open-circuit the auxiliary coils, whereupon the centre of deflection moves back to the position determined by the main deflection coils alone. At a second, higher temperature, the second thermistor produces operation of the second relay, whereupon the auxiliary coils are energized by the main deflection coil transformers, and the centre of deflection is moved still further back from the screen. An alternative circuit (Fig. 8, not shown) employs a saturable reactor and a magnetic reed switch, and provides a continuous displacement with temperature of the horizontal deflection centre, together with a single abrupt displacement at a predetermined temperature of the vertical deflection centre.
Patent GB-1165196-A (GB)
Title: Doppler Radar Systems
IPC: G01S13/933
Filed: 1966-12-13
Abstract: 1,165,196. Doppler radar. THOMSON CSF. 13 Dec., 1966 [17 Dec., 1965], No. 55889/66. Heading H4D. The Specification describes a doppler surveillance radar normally radiating unmodulated C.W. radiation and displaying the speeds of detected targets, which, by frequency modulating the radiation, can also simultaneously give the range of the targets. In the system of Fig. 1 a U.H.F. carrier from oscillator 2 is normally radiated by an antenna An, scanning in azimuth, and the echo signals are passed to a receiver R including doppler frequency analysing means. The output of the receiver is passed to a display In, showing, Fig. 2a, the speed of targets, e.g. V 8  against their azimuth e.g. g 8 . To enable the range of the targets to be displayed a switch 4 is closed whereby a modulating frequency e.g. 60c/s is applied to modulator 1, to frequency modulate the radiated signal. The frequency of the beat signal in the receiver is now f=fi + fd+ #F. #m.#Cos#m (t-#/2) where fi = intermediate frequency of receiver fd = doppler frequency. #F = frequency deviation of modulation #m = modulation frequency T = 2D/C where D=range of target. Each spot on the display therefore oscillates vertically at a frequency #m with an amplitude proportional to F. #m.#, i.e. proportional to target range. This produces the display shown in Fig. 2b, whereby a measurement of the vertical length of each spot gives a rough estimate of the target's range. If the radar is to be of the pulse type, a pulse modulator may be included in transmitter E. In the system of Fig. 4, the receiver comprises a bank of doppler filters 1À1... 1À9, respectively followed by detectors 2À1 ... 2À9 and integrators 3À1 ... 3À9. Thus, if due to one target X consecutive ones of the integrators are energized, indicating presence of the corresponding frequencies, then X is proportional to F. #m.#, or target range, and if n is the order of the highest filter to be energized, then the frequency corresponding to the filter in the middle of the energized filters, i.e. that of order [n-x-1/2] is proportional to target speed. Thus to determine which integrators are energized a series of clock pulses from generator 6 are fed by distribution 5 to close 4À1 ... 4À9 in turn. The resultant output at P, applied to the control inputs of AND gate 9 and NAND gate 10 comprises a pulse for each energized integration. The clock pulses are applied to the other inputs of gates 9 and 10, such that gate 9, gates through a number of pulses equal to X which are counted in counter 8, and gate 10 only starts to pass the clock pulses when the pulses at P cease. The first pulse from gate 10 causes the destructive readout of counter 8 into a range indicator 15. The clock pulses are also counted in counter 11, which is non-destructively read out into computer 13 by the output of gate 10. The count so read out equals n + 1. The number X is also fed to computer 13, such that it can compute [n-x-1/2] and feed a speed indicator 14. Indicators 14 and 15 may be used by themselves or in parallel with indicator In of Fig. 1.
Patent GB-1343663-A (GB)
Title: Electronic timepieces
IPC: G04G5/00
Filed: 1971-12-06
Abstract: 1343663 Electronic watches SUWA SEIKOSHA K K 6 Dec 1971 [17 Dec 1970] 56558/71 Heading G3T In an electronic watch comprising a crystal controlled oscillator 1 Fig. 1 followed by M.O.S. frequency dividers 2 to 7 and driving circuits 3<SP>1</SP> to 7<SP>1</SP> of integrated circuit construction for selectively activiating elements of a liquid crystal or light emitting diode time display D.I., there are provided switches S1 to S5 which are selectively closed for correction of the 1 sec, 10 sec, 1 min, 10 min and 1 hour indications respectively, there being selectively applied to the inputs of respective f divider stages a signal of one polarity or of the opposite polarity. Thus in divider 3 Fig. 2 for example, the divider proper B includes four M.O.S. transistors c,d,e,f, and the input includes M.O.S.T.s a and b. Normally the gates of a, b and grounded via R 1  so that a and b are "ON" and "OFF" respectively. Thus input signals of appropriate polarity are fed via transistor a to the divider proper B. When it is required to effect correction S.I. is closed and a positive potential V DD  is applied to the gates of M.O.S.T.s a and h so that a becomes "OFF" and b "ON". Thereby a polarity inverter I is placed in circuit so that the polarity of signals applied to the divider proper B is reversed. Thus each time S.I. is closed and opened, in effect a pulse is applied to the divider B, and pulses can be successively delivered to correct the time indicated. Switches S2 to S7 effect similar charges when closed and opened.
Patent GB-1360475-A (GB)
Title: Power steering gear
IPC: B62D5/083
Filed: 1971-12-08
Abstract: 1360475 Power assisted steering systems TRW Inc 8 Dec 1971 [8 Dec 1970] 57100/71 Heading B7H In a variable ratio power assisted steering assembly in which a valve 24 controls fluid supply to working chambers 14, 15 for a piston 13 having a rack 17 drivingly meshing with a gear sector 20 of a rocker shaft 21, the rack and/ or sector teeth are constructed so that the steering ratio between a steering shaft 28 and shaft 21 is lowest at the central steering position and so that the torque output increases as the assembly is turned from the central position. The pitch of the rack teeth may be constant whereas the radius pitch of the sector gear teeth may vary, or alternatively the sector teeth may be of constant radius pitch and the line pitch of the rack varied, to achieve the desired steering ratio and torque profiles. Valve 24 comprises a rotary spool 30, integral with or connected to the steering shaft 28, mounted for limited relative rotation within a sleeve 31 comprising an outer sleeve 31a pinned to an inner sleeve 31b by bored pins 32. Sleeve 31b is part of a steering worm 58 which connects the spool via a torsion bar 55, and has pairs of diametrically opposed axial slots 42, 42a communicating via radial bores 45, 45a with bore 25 containing the spool 30. Slots 42 and 42a respectively open into chamber 15 and bore 25. Spool 30 has diametrically opposed axial slots 47, 48 separated by lands 63 which are smaller than bores 45 or 45a, slots 47 and 48 respectively allowing communication between bores 45 and bores 33 is pins 32 and between bores 45a and a peripheral groove 49 on the spool connected to the outlet port. With spool 30 in the position shown in Fig. 3, pressure fluid passes to inlet 22 and via passages 36, 38 and annular groove 34 to the pin bores 33 and slots 47. Since lands 63, are smaller than bores 45, 45a both chambers 14, 15 are connected to supply. On rotation of the rotor (Fig. 4, not shown) only slots 47 connect with pressure supply and provide fluid to chamber 15 or 14 via slots 42 or 42a, the other chamber being connected via the appropriate slot to exhaust.
Patent GB-1399297-A (GB)
Title: Negative admittance circuits
IPC: H03H11/44
Filed: 1972-12-12
Abstract: 1399297 Negative impedance circuits POST OFFICE 30 Nov 1973 [12 Dec 1972] 57272/72 Heading H3T A two terminal negative admittance circuit comprises: a bipolar transistor T<SP>1</SP> 9  with its collector-emitter path connected between the two terminals 3<SP>1</SP>, 4<SP>1</SP>; a bias resistor R<SP>1</SP> 11  connected from one terminal to the base of the transistor; a negative resistance circuit connected from the other terminal to the base; and a capacitor connected from one electrode of the transistor to one or other of the two terminals. As shown in Fig. 5, the circuit is that described in Specification 1,397,789 with the addition of the capacitor C2 connected between emitter and terminal 4<SP>1</SP>. Alternatively, Fig. 4 (not shown), the capacitor may be connected between base and terminal 4<SP>1</SP> (C N ) or between base and terminal 3<SP>1</SP> (C1). More than one of the capacitors may be used to give any required negative admittance.
Patent GB-1245955-A (GB)
Title: Conveyor belt
IPC: B65G15/02
Filed: 1968-12-03
Abstract: 1,245,955. Endless conveyer belts. B. F. GOODRICH CO. 3 Dec., 1968 [4 Dec., 1967], No. 67291/68. Heading B8A.  A conveyer belt has a substantially inextensible central spine 21 embedded in rubber and flanked by corrugated rubber load-carrying portions 51, 52. The corrugations may be disposed at right angles to the spine 21 (Fig. 4) or may be at an acute angle thereto (Fig. 5). The belt may be supported by belts 34, or by large diameter rollers 62. On curves of the conveyer about a vertical axis, rollers 36, 36, engage the edge of the belt. The sides of the belt may be supported by rollers 63 (Fig. 9). The belt may be disposed in V-shaped cross-section (Fig. 11, not shown). The corrugation may have reinforcement bundles 33 of wire (Fig. 10) in which the scale is larger in a vertical direction as compared with the horizontal. There is a gap 61 at the centre of the bundles. The spine 21 is covered by a reinforcement 60.
Patent GB-1321030-A (GB)
Title: Asynchronous adding-substracting device
IPC: H03K21/00
Filed: 1971-12-13
Abstract: 1321030 Reversible counters PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 13 Dec 1971 [16 Dec 1970] 57768/71 Heading G4A A reversible binary counter comprises a number of bi-stable stages, each stage except the first being connected to the preceding stage via a coupling unit. Each bi-stable provides complementary outputs connected to switches, e.g. f.e.t's., which feed a differentiator, the switches and differentiator together forming the coupling unit. The switches are rendered alternately conducting and non-conducting under the control of complementary signals which control the direction of counting. The direction control signals pass to the switches via pulse-slopereducing units. The counter is suitably formed as an integrated circuit. In one arrangement, Fig. 2, the bi-stables 1-4, 2-4 &c., are connected by coupling units 2-3, 3-3 &c. The f.e.t. switches 26, 27; 36, 37; etc.; are controlled by complementary direction-reversing signals at 60, 70, the slope of the transitions in the signals being reduced by integrators 63, 73. If the voltage changes applied to the gate electrodes of the f.e.t.'s. were to be rapid the currents through them would be large, with consequent high amplitude voltage pulses across the resistors 29, 39 &c., of the differentiators, these pulses possibly being high enough to change the state of the counter so that a false count would be indicated, when the direction of counting were reversed. In another arrangement, Fig. 3 (not shown), the function of the differentiators in Fig. 2 is performed by dynamically controlled bi-stables, each forming a bi-stable stage of the counter. The state of such a bi-stable can be changed only if the voltage applied to its input changes sufficiently rapidly from high to low. In the case of Fig. 2, for forward counting a high voltage, e.g. + 6 V, is applied at 60 and a low voltage, e.g. - 6 V, at 70. V1 is + 6 V. If the count is initially zero each output Q is low, e.g. 0 V. The first pulse applied to bi-stable 1-4 sets its output Q high, e.g. + 6 V. The second pulse sets Q of 1-4 low and, since f.e.t'. 26 now has low resistance because of the high voltage between the gate and input terminals, a current flows through the f.e.t. to charge capacitor 28. The resulting negative pulse, superimposed on V1, causes bi-stable 2-4 to change its output Q from low to high. For reverse counting - 6 V is applied to 60 and + 6 V to 70. It is now f.e.t.'s. 27, 37 &c. that are low resistance and consequently a bi-stable changes state only when the output Q of the preceding stage changes from high to low.
Patent GB-1356078-A (GB)
Title: Fluid flow indicator device
IPC: C08J3/05
Filed: 1972-12-20
Abstract: 1356078 Measuring fluid-flow NOROSAEN 20 Dec 1972 [30 Oct 1972] 58954/72 Heading G1R In a rotatable vane flow rate indicator in which a wall 32 separates inlet and outlet ports 52, 54, a rotatable vane 44 abuts a spring loader vane 82 located in the free edge 36 of the wall 32 to prevent leakage between the vane 44 and the wall 32.
Patent GB-1286139-A (GB)
Title: Method for producing dichlorobutenes
IPC: C07C17/00
Filed: 1969-12-08
Abstract: 1286139 Dichloro butenes SUMITOMO CHEMICAL CO Ltd 8 Dec 1969 [10 Dec 1968] 59763/69 Heading C2C Dichlorobutenes are prepared by the additive chlorination of butadiene in the vapour phase by separately introducing butadiene and chlorine in a molar ratio of at least 2 : 1 into a first reaction zone at a temperature of from 150‹ to 280‹ C. wherein the gaseous mixture is strongly agitated and then passing the gaseous reaction mixture into a second reaction zone maintained at a temperature of from 150‹ to 280‹ C. but containing no agitation means. The feed gases may be pre-heated before introduction to the first reaction zone through, for example, a plurality of jets.
Patent GB-1350229-A (GB)
Title: Indazolone derivatives their preparation and use as colour couplers
IPC: G03C7/32
Filed: 1971-12-29
Abstract: 1350229 Gadazolone derivatives and their preparation AGFA-GEVAERT AG 29 Dec 1971 [29 Dec 1970] 60404/71 Heading C2C [Also in Division G2] Compounds of the formula wherein R is hydrogen or C 1-3  alkyl, R 1  is hydrogen or alkyl, R 2  is alkyl containing up to 17 carbon atoms, and R 1  and R 2  may, together with the carbon atom joining them, form a cycloalkane ring, X and Y may be the same or different and represent hydrogen, halogen, C 1-18  alkyl, cycloalkyl, C 1-18  alkoxy, C 1-18  thioalkyl, phenyl, aryloxy or acylamino, and where the said groups may carry additional substituents, and X or Y may form, together with R 1  or R 2  and the carbon atoms joining them, a cycloalkene ring, and Z is hydrogen, sulphanyl, which may be substituted with monoalkyl, dialkyl or aryl groups, or a group which renders the compound soluble in alkali, may be prepared by reacting a suitably substituted styrene, optionally in the diameric form, or the corresponding α-carbinol, with an anthranilic ester in the presence of an acid catalyst to alkylate said ester in the 5-position, and effecting subsequent indazolone ring closure by a known method; the product may then be optionally sulphonated. The radicals X or Y, when an acylamino group, may be derived from aliphatic or aromatic carboxylic or sulphonic acids, the additional substituents may be, for example, halogen, hydroxyl, carboxyl, acylamino or carbonyl groups, and groups representative of Z which render the compounds soluble in alkali may be, for example, carboxyl or sulphonic, optionally in the anionic form. In examples: (1) dimeric isopropenyl phenol is reacted with potassium hydroxide and cetyl bromide to form the corresponding di-p-cetoxy ether, the latter is reacted with methyl anthranilate to form 5-[2- (4<SP>1</SP> - hexadecyloxyphenyl) - isopropyl] - anthranilic acid methyl ester which is diazotised and cyolised to give 5-[α-(4<SP>1</SP>-hexadecyloxy)-isopropyl] - indazolone which is then sulphonated in the 31-position; (2) o-hydroxy-acetophenone is etherified with cetyl bromide and the ketone group subsequently reduced to form o-cetoxy phenyl methyl carbinol, the latter is reacted with methyl anthranilate to form 5-[α-(2<SP>1</SP>- hexadecyloxyphenyl) - ethyl] - anthranilic acid methyl ester and indazolone ring closure is effected as above. The compounds of the above formula may be used as magenta forming couplers in light-sensitive photographic materials.
Patent GB-1283562-A (GB)
Title: High power arc furnace electrode
IPC: C04B35/52
Filed: 1969-12-12
Abstract: 1283562 Modified carbon body C CONRADTY 12 Dec 1969 [30 Jan 1969] 60666/69 Heading C1A [Also in Division H5] An arc furnace electrode of carbon and/or graphite contains a titanium boride for arc stabilization, improved oxidation resistance, &c. Up to 20% of TiB and/or TiB 2  is introduced into the electrodes preferably 1-8% (by weight). The components are added to the starting materials in the finishing process or impregnated into calcined electrodes before graphiting so that titanium boride compounds are produced in the finished product. Titanium carbide or boron in solid solution may additionally be present in the finished electrode. Specific reactions include the reaction of TiO 2  and B 2 O 3  with the carbon to give TiB 2  and carbon monoxide; the reaction of Ti metal, boron carbide and B 2 O 3  to give TiB and CO. The introduction of titanium and boron into an already fired electrode takes place by impregnation with titanium-silicon compounds and organo-boron compounds in organic solvents, subsequent evaporation of the solvent and then decomposition to give titanium borides.
Patent GB-1192182-A (GB)
Title: Improvements in and relating to Combined Liquid Heaters and Radiators
Inventor: DRAKE DERICK GEORGE
IPC: F24H3/00
Filed: 1966-08-11
Abstract: 1,192,182. Boilers; burners; space heating radiators. SERVOTOMIC Ltd. 11 Aug., 1967 [11 Aug., 1966], No. 60908/68. Divided out of 1,192,181. Headings F4A, F4S and F4T. The subject-matter is identical with that of the parent Specification 1,192,181 but the claims relate to the fact that the core 11 comprising the two water containing panels can be orientated in two ways in the casing 10, with the air inlet and flue gas outlet 41, 42, in either the right hand or left hand recess of the casing 10.