baber/WOPTO huggingface dataset:
Patent GB-1167480-A (GB)
Title: Preparation of Benzene from Toluene
Inventor: SIMONETTA MASSIMO
IPC: C07C67/00
Filed: 1968-09-16
Abstract: 1,167,480. Benzene. SOC. ITALIANA RESINE S.p.A. 16 Sept., 1968 [20 Sept., 1967], No. 44002/68. Heading C5E. Benzene is prepared by hydrodealkylating toluene at high temperature (e.g. 600-800 C.) and high pressure (e.g. 30-70 atm.) in the absence of solid catalytic materials but in the presence of 0À5-20 wt. per cent (based on toluene) of one or more C 2-4 -alkylbenzenes, e.g. di-o-poly-isopropylbenzenes.
Patent GB-440049-A (GB)
Abstract: 440,049. Colour photography. OPTICOLOR AKT.-GES., Glarus, Switzerland. Aug. 21, 1934, No. 24103. Convention date, Aug. 23, 1933. Addition to 421,084 and 435,859. [Class 98 (ii)] The apparatus described in Specification 435,859 is modified by constructing one of the moving plane mirrors as a roof-shaped mirror so as to produce a lateral reversal of the image 1. In the form shown light from the source 2 is directed on to the original film 1 and passes by reflection at the angular mirror 9 and the mirror 10 to the objective 8, thence by the mirror 11, and angular mirror 12, one surface of which is formed as a roof-shaped mirror, to the film 7. The mirrors 9, 12 are mounted on an oscillating platform 14.
Patent GB-1324728-A (GB)
Title: Electric contact-making devices
IPC: H05K7/18
Filed: 1971-09-23
Abstract: 1324728 Two part couplings SIEMENS AG 23 Sept 1971 [25 Sept 1970] 44357/71 Heading H2E  Spring contacts 5 on rack 2 are brought into electrical contact with conductors 35 on assembly units 27 plugged into the rack by a wedge-drive mechanism depending on the cooperating inclined surfaces 17 of an operating rod 15 and 18, 19 of thrust bars 13, 14, the thrust bars being connected to the carrier of the contacts 5 by resilient arms 11, 12 and the lever (26) which actuates rod 15 being supported both on rod 15 and on a member fixed in relation to rack 2. Strips 1 of contacts 5 are each mounted on a support plate 3 with cranked ends for screwing it to rack 2 (Fig. 1), each contact 5 being a double spring arm providing two contact portions (Fig. 5). The arms are embedded in plastics body 4 moulded or cast on support plate 3, body 4 extending the length of the strip in portions. The arms extend rearwardly as connecting tags 6. Plastics members 8, 9 on either side of the support plate 3 and body 4 are secured together and to plate 3 by rivets 10 which also secure cover plates 20, 21. Members 8, 9 are integral with the resilient arms 11, 12 supporting thrust bars 13, 14. Operating rod 15 has windows the sides of which embrace bars 13, 14 and which include the inclined surfaces 17. Levers (26) (Fig. 2, not shown) each have two pins, one fitting into hole 22 in rod 15, the other into one of openings 25 in rail 24 secured to rack 2. Actuating the lever raises rod 15 from a disengaged position (Fig. 3, not shown and Fig. 5) to an engaged position (Fig. 4, and Fig. 6, not shown) and at the same time horizontal struts 39 on rod 15 and lugs 37 on assembly units 27 interlock. Units 27 are inserted along guide rails 28 which have apertures 29 for guiding levers 26.
Patent GB-1366375-A (GB)
Title: Catalyst of scheelite crystal structure containing  bismuth ions and cation vacancies
Inventor: AYKAN KAMRAN
IPC: B01J23/30
Filed: 1971-09-23
Abstract: 1366375 Oxidation catalysts E I DU PONT DE NEMOURS & CO 23 Sept 1971 [24 Sept 1970] 44408/71 Heading B1E [Also in Divisions Cl C2 and C5] A supported catalyst of the formula ABO 4  having the schealite crystal structure, wherein A and B are metallic ions, and at least some of the A cation being Bi<SP>3+</SP> and also vacant, with the proviso that when B consists of V and Mo, the A metal ion is not solely Bi (see Division C1). The catalyst may be supported on SiC, SiO 2 , ZrO 2 , Nb 2 O 5 , TiO 2 , PbMnO 4 , mullite or Al 2 O 3 .
Patent GB-950780-A (GB)
Title: Improvements in or relating to the arrangement of air compressors in vehicles
Inventor: BEVIS PERCY CHARLES
IPC: B60K25/06
Filed: 1961-12-14
Abstract: 950,780. Arrangement of auxiliary apparatus. BROOM & WADE Ltd. Dec. 11, 1962 [Dec. 14, 1961], No. 44923/61. Heading B7H. In a motor vehicle having an engine, a transmission shaft to the rear axle 17 and a separate power take-off shaft 21, there is provided an air-compressor 42 located beneath the floor 15 of the vehicle, an air inlet filter 26 located in a compartment formed at the side of the vehicle formed beneath a lateral floor 20 at the rear of a wing arch, and an air receiver 27 secured to straps 47 and located beneath the floor 15 at the rear of the vehicle. An outlet air oil filter 28 is provided in a compartment at the other side of the vehicle corresponding to that containing the filter 26.
Patent GB-1418839-A (GB)
Title: Restoration system for pattern information using and-type logic '
IPC: H04N1/411
Filed: 1973-09-26
Abstract: 1418839 Copying by scanning TAKACHIHO KOEKI KK 26 Sept 1973 44998/73 Heading H4F Every second black dot on each horizontal and vertical line of a pattern (Fig. 2, not shown) to be transmitted is omitted (Fig. 3, not shown) the resulting modified pattern being scanned vertically upwards to produce signals which are compressed to omit the signals corresponding to the white spaces, transmitted, and expanded before being fed from 103 to a shift register 1-96, the signal stored at 64 which corresponds to a specific dot having associated therewith signals corresponding to the adjacent dots in the modified pattern which are stored at 32 (left dot), 96 (right dot), 63 (upper dot) and 65 (lower dot). The outputs of storage units 32, 96, 63 and 65 are connected to AND gates 97- 99, the outputs of which together with the output from 64 being fed to an OR gate 100, the output of which is displayed on a cathode-ray tube 101 to produce a pattern which has some of the previously omitted dots restored. The AND gate 97 may be connected to receive signals from 32 and 96, gate 98 receiving signals from 32, 63 and 65 and gate 99 receiving signals from 63, 65 and 96. In an alternative embodiment (Fig. 5, not shown) gate 97 receives signals from 32, 65 and 96, gate 98 receives signals from 63 and 65 and gate 99 receives signals from 32, 63 and 96. In a further embodiment (Fig. 6, not shown) using four AND gates gate 97 receives signals from 32, 65 and 96, gate 98 receives signals from 32, 63 and 65, gate 99 receives signals from 63, 65 and 96 and a fourth AND gate receives signals from 32, 63 and 96. A further embodiment (Fig. 7, not shown) uses two AND gates, one receiving signals from 32 and 96 and the other receiving signals from 63 and 65.
Patent GB-1363487-A (GB)
Title: Switching device for tape recorder
IPC: G11B15/46
Filed: 1971-09-28
Abstract: 1363487 Feeding record tapes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 Sept 1971 [1 Oct 1970] 45129/71 Heading G5R A switching device for automatically stopping or reversing a tape drive when the tape comes to a standstill, e.g. at the end of its run in an end-to-end tape cassette machine, comprises two coaxial rotatable components 3, 5 of which the first 3 rotates continuously and the second 5 rotates only during tape movement (being, e.g. secured to a take-up spindle 1 driven through a slipping clutch 4), a switch 17, Fig. 2, or 32,Fig. 3, and a switching element S or S<SP>1</SP> which is driven in a first direction A 3  during the rotation of the second component 5 and in the opposite direction B to operate the switch 17 or 32 when the second component 5 is stationary; the second rotatable component 5 comprises a disc having an upstanding rim 6 with internal teeth 7, and the switching element S or S<SP>1</SP> comprises a disc 9 eccentrically disposed between the two rotatable components 3, 5 and having an annular hub with external teeth 11 which are locally held in engagement with the teeth 7 of the rim 6 by a pin 12 projecting from the first rotatable component 3, so that during movement of the tape the switching element S or S<SP>1</SP> rotates together with the two rotatable components 3, 5 in the direction A 3  whereas when the tape and the second rotatable component 5 are stationary the switching element S or S<SP>1</SP> rotates in the opposite direction B. It then operates the switch 17 or 32 as shown either through a ratchet 14 and pawl 15, Fig. 2, or by a wedging action of the end 31 of a flexible member 30 against an end 29 of a pivoted arm 21 which releases a switchoperating arm 24.
Patent GB-981121-A (GB)
Title: Automatic target apparatus
Inventor: GILLAM KENNETH HARRY
IPC: F41J7/04
Filed: 1961-12-18
Abstract: 981,121. Target apparatus. V. M. GILLAN, and L. KNIGHT. Dec. 18, 1961, No. 45299/61. Headings F3C and F3X. A target assembly comprises electricallyoperated or controlled means, e.g. a reversible electric motor M for moving a target (not shown) the means being controlled by an electric inertia switch I.S. which is actuated when the target is hit by a missile. Preferably the motor raises and lowers the target to and from a visible position and actuation of the switch causes the motor to return the target to concealed position. Alternatively the target movement may be horizontal, e.g. the target may move on a wire or chain to simulate a crawling enemy or vehicle. The apparatus also permits correct aiming of a weapon to actuate an electric switch for operating the motor without live firing. For this purpose the weapon is movably mounted upon a rest and movement of the weapon horizontally causes corresponding movement of the arm of a multi-point switch H and vertical movement of the weapon moves the arm of a switch V. The fixed contacts 14, 15 of the switches H, V represent correct aim and are connected to a power supply PS2 and relay R1. If a switch S1 is closed to raise the target and the weapon is correctly aimed, the relay R1 operates to complete a circuit for operating the motor M and the target is retracted. A switch closed by pressing the trigger may be incorporated in series with the operating circuit of relay R1 so that R1 can only be operated when the trigger is pressed. In using the apparatus for live firing, provision is made for simulating retaliatory fire from the target if it is not hit. For this purpose a circuit includes a relay R4, and a stepping selector switch S3, the fixed contacts of which are wired to electric detonators DET. This circuit is operative only when the target is raised and on closing a switch S2. Time-switches incorporated in the circuits may permit exposure of target only for limited periods and " retaliatory fire " may be made to occur if the target has not been hit within a set time after being raised. A counter C is provided for recording the number of hits. This may be replaced or supplemented by an aural indicator of hits comprising an audio oscillator and amplifier feeding a loud-speaker. Instead of the manually controlled switches S1 S2, relays may be provided which are actuated by a radio signal from a remote transmitter. The target may be provided with a resilient layer which gives " self-sealing " of bullet holes. Thus it may be made of foamed plastic material such as polystyrene or phenol-formaldehyde. Alternatively a target may have a backing of bondwood or fibreglass and a surface layer of resilient rubber or plastic. Larger targets may be curved or dished to give greater rigidity and to transmit the impulse from a hit to the switch more effectively. Fig. 3 (not shown) shows an alternative circuit arrangement for the target assembly.
Patent GB-1193327-A (GB)
Title: Production of Pure Melamine
IPC: C07D251/60
Filed: 1967-10-05
Abstract: 1,193,327. Melamine. BADISCHE ANILIN- & SODA-FABRIK A.G. 5 Oct., 1967 [6 Oct., 1966], No. 45450/67. Heading C2C. [Also in Division C3] Pure melamine, obtained by the thermal conversion of urea at temperatures of more than 300‹ up to 450‹ C. in the presence of ammonia and catalysts, is separated by cooling the off-gas from said reaction in a first stage to a temperature above the dewpoint up to 360‹ C. and removing the solid thus deposited, and cooling the resulting off-gas in a second stage to a temperature below 220‹ C. to precipitate pure melamine. The dew point of the off-gas generally lies in the range 280-300‹ C. and the process is suitably effected by cooling in the first stage to 290-310‹ C. and in the second stage to 180-220‹ C. The cooling may be effected by mixing the off-gas with a cold inert gas (e.g. off-gas from which the melamine has been removed), liquid or solid.
Patent GB-1477087-A (GB)
Title: Treatment of dairy products
IPC: A23C9/12
Filed: 1975-11-03
Abstract: 1477087 Dairy products of reduced lactose content TETRA PAK INTERNATIONAL AB 3 Nov 1975 [13 Nov 1974] 45647/75 Heading A2B The lactose content of dairy products, e.g. milk, is reduced by adding an enzyme e.g. lactose after pasteurisation and/or sterilisation and sealing in packaging containers. After the enzyme is added the product is allowed to stand under sterile conditions for a day or more at above 8‹C.
Patent GB-1024816-A (GB)
Title: Basic ethers of substituted hydroxy benzoic acids and process for making same
IPC: C07C233/12
Filed: 1962-12-04
Abstract: The invention comprises compounds of the formula <FORM:1024816/C2/1> wherein R1 is hydrogen or an aryl radical optionally substituted by a halogen, an alkyl group or a nitro group; R2 is an aryl radical optionally substituted by a halogen, one or two alkyl groups or a nitro group; or R1 and R2 may be lower alkyl groups combined directly or through an oxygen atom to form with the nitrogen atom a saturated heterocyclic ring, R3 and R4 are lower alkyl groups which may be combined to form with the nitrogen atom a saturated heterocyclic ring, R5 is hydrogen or a halogen and R6 is a lower alkylene group; the word lower referring to groups contain at most 4 carbon atoms) and salts thereof with inorganic acids and quaternary ammonium derivatives thereof; and their preparation by reacting a halide of the formula Hal.R6.NR3R4 at 60-110 DEG  C under atmospheric pressure, if necessary in an alkaline medium with a compound of the formula <FORM:1024816/C2/2> (where Y is the group NR1R2 or an alkoxy group) and then, when Y is alkoxy, reacting the product with the appropriate amine NHR1R2.  The halide may be replaced by an alkylene dihalide or alkylene halohydrin in this process, when the product must be reacted with the amine NHR3R4 or with a tertiary amine derived therefrom, if necessary after replacement of the hydroxy group in the halohydrin residue by a halogen atom Preferably, an alkali metal salt of the phenolic reaction component is used.  Also, in the halide Hal.R6 NR3R4, the amino group may be free or monoalkylated, when the product is subsequently N-alkylated Examples are given.
Patent GB-1511839-A (GB)
Title: Modification of siloxane
IPC: C08K5/00
Filed: 1974-10-25
Abstract: 1511839 Modification and cure of unsaturated polysiloxanes with 1,3-dipolar compounds IMPERIAL CHEMICAL INDUSTRIES Ltd 16 Oct 1975 [25 Oct 1974] 46253/74 Heading C3T Siloxanes containing at least one non- terminal Si atom bearing aliphatic carboncarbon unsaturation are modified by reaction with a compound A(BDz)y wherein A is H, or an organic group containing C and H and optionally O atoms, or an organometallic, organosilicon or polymeric group, or may be a direct bond when y is 2, B is a 1, 3 dipolar group, D is H or a monovalent organic group, z is 0-4 and y, the valency of A, is 1 to 10. Suitable groups B include: nitrile oxide nitrile sulphide nitrile imine nitrone diazoalkane sydnone and isosydnone the compounds may be prepared in situ if necessary. In Examples (i) polydimethylsiloxanes containing MeViSiO units and optionally MePhSiO units, which may be used, in heptane solution, to coat paper, are cured to rubbers using 10 p.h.r. of terephthaldinitrile oxide, ONC-C6H4-CNO, or smaller quantities when a silica filler is present; (ii) similar siloxanes or one containing propargyloxy or acrylatopropoxy groups are gelled by reaction with 5-10 p.h.r. of terephthaldinitrile oxide, benzene 1,4- bis(phenyl nitrone) or p-phenylene-3,3-bis-sydnone; a nitrile imine, used to gel a siloxane, is generated in situ from terephthaloyl - bis - phenylhydrazide and Et3N, and a nitrile sulphide, used to cross-link a rubber stock, is generated in situ from ethylenebis - 1,3,4 - oxathiazol - 5 - yl - 2 - one; (iii) pyrazoline groups are introduced into an acrylatopropoxy siloxane by treatment with ethyl diazoacetate. The process of Specification 1,474,691, wherein a dinitrile oxide is generated in situ from a polycyclic furoxan, is disclaimed.
Patent GB-1330316-A (GB)
Title: Electrode for an electronic tube
IPC: H01J1/36
Filed: 1970-09-30
Abstract: 1330316 Making anodes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 Sept 1970 [3 Oct 1969] 46569/70 Heading B3A [Also in Division H1] An anode for a beam power tube comprises metal plate parts 2, 3 having parallel complementary portions in which lugs 5 attached to part 2 are inserted through corresponding apertures in part 3 and joined by spot-welding the lugs. Perforated plate members 1, which act as cooling members, are sandwiched between the electrode parts 2 and 3, the lugs 5 passing through corresponding apertures in members 1. Alternatively, the members 1 may carry lugs which extend through apertures in parts 2 and 3. The construction enables a wide electrode to be used for spot-welding, and improves the thermal conductivity of the assembled anode.
Patent GB-1249329-A (GB)
Title: Control of the rate of precipitate growth and of precipitation in aqueous systems
IPC: C02F5/12
Filed: 1968-10-01
Abstract: 1,249,329. Sequestering. BETZ LABORATORIES Inc. 1 Oct., 1968 [1 Nov., 1967], No. 46643/68. Heading C1C. Precipitation in aqueous systems is controlled by adding lignosulphonate, lignin, tannin, starch, sodium mannuronate, sodium alginate, agar, certain polyelectrolytes together with an acid having a dissociation constant of 3-8. Specification 1,210,534 is referred to.
Patent GB-1208596-A (GB)
Title: Ignition device
Inventor: BARNES HUGH VERNON
IPC: H01L41/113
Filed: 1967-10-12
Abstract: 1,208,596. Piezo-electric generators. RADIATION Ltd. 28 Aug., 1968 [12 Oct., 1967], No. 46647/67. Heading H2A. In a piezo-electric igniter, movement of an operating rod 18 against a return spring 20 causes a detent 19, carried by the rod, to retract a hammer 7 against a spring 8 until a cam surface 16, Fig. 2, swivels the detent out of engagement with the hammer and allows the latter to strike an anvil 4 on a piezo-element 5. Rod 18 is carried by cover 10 which forms the top of a casing 1 enclosing the element 5 and hammer 7, the detent 19 projecting through an aperture in the cover which is profiled to form the cam surface.
Patent GB-1307376-A (GB)
Title: Preparation of hydrous silica
IPC: C01B33/193
Filed: 1970-10-07
Abstract: 1307376 Preparation of hydrous silica PFIZER Inc 7 Oct 1970 [22 June 1970] 47782/70 Heading C1A Granular, substantially gel-free hydrous silica is prepared by adding an alkali metal silicate, preferably water glass (6À4% Na 2 O; 20À7% SiO 2 ), to water at a temperature above 70‹ C. over a period of at least 10 minutes to produce a final silica concentration of at least 90 grams per litre while simultaneously introducing pure carbon dioxide or gases containing CO 2  until the precipitation of the hydrous silica is substantially complete. The carbon dioxide may be contained in either flue or lime kiln gases.
Patent GB-1207158-A (GB)
Title: Improvements in control devices mounted on a support
IPC: B60H1/00
Filed: 1967-10-23
Abstract: 1,207,158. Control means for actuating movable members. SOC. ANON. FRANCAISE DU FERODO. 23 Oct., 1967 [25 Nov., 1966], No. 48149/67. Heading B7E. [Also in Division F2] A control device e.g. for a sheathed cable, comprises an actuating first part projecting through a rectilinear slot formed in a support e.g. a vehicle dashboard, and a pivoted second part so connected to the first part that when the first part is moved manually along the slot the second part will pivot, the first part projecting through the slot by a constant amount during movement along the slot. In Fig. 1, the Bowden cable 39 is anchored at 26 to a lever 41 pivoted about a fixed pin 22, the lever 41 comprising two parts 20, 27 slidably secured together and urged apart longitudinally by a compression spring 37, and a knob 32 being carried by the plate 27. The cable may be anchored to either of the plates 20, 27. In another embodiment, the lever extends beyond the fixed pin and the cable is anchored to this extension, and two guide rollers on one plate engage in an aperture in the other plate. In a further embodiment, the knob is formed by the end of a finger which is spring-biased out of a cylinder carried on a parallel linkage pivoted on fixed axes, and the cable or cables is or are anchored to either or both links of the linkage, or to an extension thereof. In Fig. 8 the finger 90 is integral with a U-section slide 93 embracing a fixed guide-rail 94 and carrying a pin 96 engaging an arm 98. In another embodiment, the slide has two rollers engaging in a slot in a fixed plate, and the rail is omitted. In other embodiments, the slide has four rollers engaging a fixed guide rod, and the slide is engaged by a blade spring.
Patent GB-1470173-A (GB)
Title: Twin-wire papermaking apparatus
IPC: D21F9/00
Filed: 1974-03-17
Abstract: 1470173 Web-forming apparatus INTERNATIONAL PAPER CO 17 March 1974 48345/73 Heading D2A In a method of forming a web of fibres, a dilute suspension of fibres is passed between a pair of endless foraminous forming carriers 30, 32 moving continuously into and through a forming section 46 over converging paths, the web being formed between the converging carriers 30, 32 by forcing water under pressure from the suspension without suction through each carrier 30, 32 into a respective plurality of successive seal boxes 48, 50 disposed adjacent that carrier 30. 32 on the side thereof opposite the flowing suspension. The water level in the respective seal boxes 48, 50 is maintained above the points of entry of the water from the carrier, the convergence of the carriers substantially blocking the flow of suspension out of the forming section 46 between the carriers 30, 32. As described, the suspension is passed through an inlet section 12 which stabilizes the velocity thereof by means of vanes 24 and a passageway 22 of substantially constant cross-section. The rate of flow of water through the seal boxes may be separately controlled so that the velocity of the remaining suspension through the forming section is substantially constant. The speed of the carriers 30, 32 is kept the same, the fibrous web leaving carrier 32 at transfer roll 82 before being transferred if required to a dryer fabric 86. The boundary layer of the suspension flowing through inlet section 10 may be removed through apertures adjacent seals 34, 36. The inlet of each seal box 48, 50 includes a foraminous support 52, 54 for the carriers 30, 32, each array of seal boxes 48, 50 being mounted on a common mounting which allows adjustment of the outlet 56 to accommodate different web thicknesses. Various modifications are described which allow manufacture of multilayer paper. In one modification, (Figure 8, not shown) a central vane 24 extends through a substantial length of the forming section, allowing two separated stabilized streams to be used, each coming into contact with a single support, the resultant webs joining adjacent the outlet 56. Wood and synthetic fibres may be employed. A three layered paper may be produced by a further modification (Figure 9, not shown), the outer layers resulting from the same stock, a second stock being separated from the first until being introduced, adjacent the forming section inlet 14, between the two parts of the first stream. Yet a further modification (Figure 10, not shown) allows the manufacture of a filled sheet. A suspension of filler enters at the inlet 14 being initially separated from a single stock until the web has been at least partly formed.