baber/WOPTO huggingface dataset:
Patent GB-1245088-A (GB)
Title: Improvements in or relating to the bonding of structures
Inventor: CUMBERS DAVID CHARLES
IPC: D04H3/14
Filed: 1967-11-10
Abstract: 1,245,088. Laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 5 Nov., 1968 [10 Nov., 1967], No. 51217/67. Heading B5N. [Also in Divisions D1 and F2] A fibrous assembly is bonded in a pattern of spaced binder areas by passing the fabric through a pressure nip which comprises a bonding member heated to a temperature below the softening temperature of thermoplastic material in the fabric. The bonding member has a surface with 50-1000 projections/sq. ins. thereon, the tips of the projections having a crosssectional area of 1 Î 10<SP>-5</SP> to 5 Î 10<SP>-4</SP> sq. ins. (producing bonded areas of 1 Î 10<SP>-5</SP>-1 Î 10<SP>-3</SP> sq. ins.), and 1-10% of the total area of the bonding member comprising the projection tips. The projections can have a length, e.g. 0À02- 0À10 ins., such that the surface of the bonding member between the projections does not exert pressure. The projections can have an angle between their sides of from 0-100 degrees. The projection tips can be domed or flat. The projections may penetrate the fabric to a depth of 50-98% of the fabric thickness. The fibres in the assembly may be staple fibres or continuous filaments and may be crimped. The fibres may be made of cotton, wool, polyamides, polyesters or blends thereof. The fibres may comprise at least two polymer components. The fibrous assembly can be a non-woven fabric which may be air laid and can be needled prior to bonding. Alternatively, the fibrous assembly may comprise a plurality of layers which are to be bonded together, or the fibrous assembly may be bonded to a non-fibrous assembly or incorporate a scrim, or it may comprise two woven fabrics containing different fibres which are bonded together.
Patent GB-1473269-A (GB)
Title: Process for the agglomeration of fines in particular coal fines
IPC: B65G53/30
Filed: 1975-12-15
Abstract: 1473269 Agglomerating carbonaceous fines SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 15 Dec 1975 [16 Dec 1974] 51248/75 Heading C5G [Also in Division Cl] Fines in slurry or powder form are agglomerated by adding to the fines 5-15 wt. per cent, based on anhydrous fines, of an aqueous bitumen emulsion, the bitumen having a penetration at 25‹ C. below 5 and a Conradron value over 35. As emulsifier for the emulsion is preferably used alkali metal naphthenate, but there may also be used an alkali metal soap of a higher fatty acid. The fines may in particular be coal fines but may also be coke fines, iron fines, e.g. sponge iron fines from steel works and ores, e.g. iron ores.
Patent GB-1503977-A (GB)
Title: Device for premanently locking a fastener slider in a closed position
IPC: A47C31/02
Filed: 1975-12-15
Abstract: 1503977 Securely fixing a fastener slider in a closed position YOSHIDA KOGYO KK 15 Dec 1975 [21 Dec 1974] 51298/75 Heading A4J [Also in Division E2] A sliding clasp fastener comprises a pair of rows of interlocking elements 15, a slider 17 movable along the rows of interlocking elements having a Y-shaped channel which receives the row of interlocking elements with the branched end of the Y-shaped channel located at the front end of the slider opposite a narrower, rear end, and means for securing the slider in the closed position on the rows of elements, the means comprising a stop 18 fixedly mounted on the interlocked rows of elements 15 and so positioned as to be held in contact with the rear end of the slider which is located in its  closed position. As shown, an opening, in an upholstered back 11 of a chair 10 with no legs, is closed by a sliding clasp fastener which extends around one of a pair of tubular posts 13 which pivatally couple the back 11 to a seat 12, and which has a pair of conventional end stops 16. The sliders 17, which have no built-in lock mechanism, or pull tabs, are pulled, e.g. by a suitable tool, to their fully closed positions in which they abut the respective post 13, and a stop 18, e.g. in the form of a metal staple, is fixedly mounted on the interlocked rows of fastener elements in contact with the rear end of each slider.
Patent GB-1395202-A (GB)
Title: Gas discharge panel display system
IPC: H01J17/49
Filed: 1972-11-10
Abstract: 1395202 Matrix displays and circuits therefor INTERNATIONAL BUSINESS MACHINES CORP 10 Nov 1972 [30 Dec 1971] 51965/72 Headings G5C [Also in Division H1] In a gas discharge panel display system comprising a plurality of gas discharge sites defined by the cross-overs of pairs of drive conductors 5 and 7, the gas panel is partitioned into regions I and II, each pair of drive conductors defining a discharge site in each region, and each region has a respective independently operable pilot light arrangement 17, 19, ignition of discharge at a selected site being effected by applying momentarily a potential difference across the pair of conductors defining the site which is greater than the voltage sufficient to sustain a discharge, but less than the voltage necessary to ignite a discharge, and by simultaneously igniting momentarily the pilot light arrangement of the region containing the selected site. The conductors 5 and 7 are printed on the inner surfaces of glass members 1 and 3 forming a gas-filled envelope which is divided into regions I and II by a glass rod 15. More than two regions are normally provided. Conductors 7 are connected in pairs to form in effect a plurality of conductors each having a portion in each of the regions I and II. Pilot conductors 17 and 19 formed on member 1 are connected to terminals PI or PII. A common counter-electrode 21 printed on member 3 is connected to ground. Alternatively, all three pilot electrodes 17, 19 or 21 may be printed on member 1. A control circuit for the panel is described (Figs. 7A and 7B, not shown), comprising X and Y sustain drive circuits and a write pulse gate circuit connected through a transformer to switching circuits for applying operating potentials to the respective X and Y lines. The switching circuits are controlled by four bits of a 5-bit binary address function, the fifth bit of which controls pilot select circuits.
Patent GB-1364623-A (GB)
Title: Copolymers of olefines with vinyl furanes or vinyl thiophenes
IPC: C08F28/06
Filed: 1971-05-11
Abstract: 1364623 Monoolefin-vinyl furan or thiophon copolymers SOC NATIONALE DES PETROLES D'AQUITAINE 11 May 1971 [11 May 1970] 52189/73 Divided out of 1362693 Heading C3P Copolymers of one or more monoolefine, and optionally a non-conjugated diene, and a furan or thiophen derivative of the formula: where X is 0 or 5 and one of the R symbols represents a vinyl group and the other three R symbols represent a hydrogen or halogen atom or an alkyl, aryl, cycloalkyl, alkoxy, aryloxy or dialkylamino radical of up to 16 carbon atoms, are obtained by copolymerizing in the presence of the usual Zeigler-Natha catalysts. The heterocyclic monomer may be complexed with Lewis acids. In the examples, ethylene/vinyl furan or vinyl thiophen, ethylenepropylene or butene-vinyl furan or vinyl thiophen, and ethylene/propylene/dicyclopentadiene/vinyl thiophen copolymers are formed using VCl 4 , VOCl 3  or VCl 3 . 3(tetrahydrofuran) together with (C 2 H 5 ) 2  Al Cl or (C 2 H 5 ) 3  Al 2  Cl 3 , in some cases in the presence of hydrogen. The products may be thermoplastic or elastomeric; the latter are vulcanizable using sulphur and free-radical generators.
Patent GB-1478380-A (GB)
Title: Phased array antenna
IPC: H01Q3/34
Filed: 1974-12-03
Abstract: 1478380 Phased array antennas STANDARD TELEPHONES & CABLES Ltd 3 Dec 1974 52260/74 Heading H4A In a phased array antenna assembly including at least one row of radiating elements (but may possibly be a 2-dimensional array) each element comprises a length of rectangular waveguide, with an open and a closed end, the elements being arranged side by side and each element includes along a major portion of its length a bifurcating wall section normal to a plane extending parallel to the row. Means are supplied to apply energy at the operating frequency, from a plurality of phase shifted sources, to the radiating elements so that energy from each source is split equally and applied to the adjacent bifurcated portions of two adjacent elements. The properties of a mode higher than the dominant H 01  mode are used to reduce sidelobes and hence grating lobes. The TE 11  mode is excited by introducing the required amount of phase shift between the two bifurcated portions of each element and the required relative phase of the propagating modes at the aperture is set by the length of the unbifurcated waveguide portion. In Fig. 2 links 13(1) etc., are provided to couple the pair of bifurcated portions in each waveguide element to control the reflection coefficient at the junction of the bifurcated waveguide. In another embodiment, Figs. 6 and 7, each bifurcated section is tapered for part of its length towards the closed end, to assist in accurately controlling the excitation of the TE 11  mode relative to the H 01  mode. The feeds are provided through coaxial connectors 20 and 21 via inductive loops 32, 34 and 31, 33 respectively. The links, e.g. 13(1) are similarly coupled to each waveguide, through the rear wall 25.
Patent GB-1368231-A (GB)
Title: Thio-substituted azetidinones and thiazolino azetidinones
IPC: C07D501/08
Filed: 1970-11-03
Abstract: 1368231 Azetidinone derivatives GLAXO LABORATORIES Ltd 30 July 1971 [31 July 1970 3 Nov 1970] 37186/70 and 52289/70 Heading C2C Novel compounds of the Formula (I) wherein R<SP>1a</SP> and R<SP>3a</SP> represent groups R<SP>1</SP> and R<SP>3</SP> respectively where R<SP>1</SP> is a blocked amino group including a group of formula -NHCOR (where -COR is a C 1-21  acyl group) and R<SP>3</SP> is an acyl group, an aliphatic, aromatic or araliphatic group or a group -SR<SP>5</SP> (where R<SP>5</SP> is an aliphatic, araliphatic cycloaliphatic or aromatic group of 1 to 20 carbon atoms) or a group of Formula (IIA) or R<SP>1a</SP> and R<SP>3a</SP> together denote -N=C(R)- where R is the residue of an acyl group -COR, which acyl group has 1 to 21 carbon atoms, the carbon atom of the group -N=C(R)- being bonded to the sulphur atom of the compound of Formula I, are obtained by subjecting to oxidative cleavage a compound of Formula (III) wherein R<SP>2</SP> is a group where R<SP>4</SP> is H or a carboxyl blocking group, R<SP>1a</SP> and R<SP>3a</SP> are as defined above except that R<SP>3</SP> is an acyl group, an aliphatic, aromatic or araliphatic group or a group -SR<SP>5</SP> (where R<SP>5</SP> is an aliphatic, araliphatic, cycloaliphatic or aromatic group containing from 1 to 20 carbon atoms) or a group of Formula II whereby the group of groups R<SP>2</SP> are removed. Intermediates of Formula III in which R<SP>1a</SP> is a phenylacetamido group and R<SP>3a</SP> is an acyl group are also new compounds and may be obtained from penicillanic acid 1-oxides by treatment with a trivalent phosphorus compound in the presence of an acylating agent. Intermediates of Formula III in which R<SP>1a</SP> and R<SP>3a</SP> together represent a group -N=C(R)- may be obtained from penicillanic acid-1-oxides by treatment with a trivalent phosphorous compound, e.g. a trialkyl phosphite. The intermediates in which R<SP>2</SP> is can be isomerized with a base (e.g. NEt 3 ) to compounds in which R<SP>2</SP> is Reference has been directed by the Comptroller to Specification 1,269,279.
Patent GB-1300944-A (GB)
Title: Cycloalkylaryl-hydroxypropyl-aryl piperazines
Inventor: BYSOUTH PETER THOMAS
IPC: C07D295/084
Filed: 1969-05-22
Abstract: 1300944 Cyclohexylphenyl-hydroxypropylpiperazines BDH PHARMACEUTICALS Ltd 6 May 1970 [22 May 1969] 52376/71 Divided out of 1300943 Addition to 1171251 Heading C2C Novel compounds 1 - [3 - (p - cyclohexylphenyl) - 2 - hydroxypropyl] - 4 - (o- or ptrifluoromethylphenyl) piperazine hydrochlorides may be obtained by reacting o- or p-bromo- or chlorobenzotrifluoride with excess of piperazine in dimethyl sulphoxide solution with or without the addition of an alkali metal carbonate and reacting the resulting 1-(o- or p-trifluoromethylphenyl) piperazine with 1-chloro-3-(pcyclohexylphenyl) propan-2-ol and a base. The products are active as central nervous system depressants.
Patent GB-1429965-A (GB)
Title: Broadcast receiver including an automatic frequency control circuit
IPC: H04N5/50
Filed: 1973-11-12
Abstract: 1429965 Tuning radio receivers; disabling AFC; transistor level variation circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 12 Nov 1973 [15 Nov 1972] 52377/73 Headings H3Q, H3A and H3T A broadcast receiver such as a radio or T.V. has a tuning member which is coupled to an electrical level adjusting circuit 31, Fig. 1, for adjusting the electrical level at its output simultaneously with adjusting the receiver tuning and a level variation detector 43 which has its input 41 coupled to the output 29 of the level adjusting circuit and its output 45 coupled to an operational signal input 47 of a circuit 19 for suppressing automatic correction of the receiver tuning during variation of the tuning. Changes in tuning voltage at 29 during tuning selection by switches 36, 38, 40 and/or adjustment of potentiometers 35, 37, 39 and when the receiver is switched on producing a varying supply 33, are detected by level variation detector 43 which turns on one of transistors 53 or 55 to short-circuit the output 11, 13 from the frequency or phase deviation detection circuit 9 so that during tuning the tuning voltage at 29 is applied directly via 21 to the oscillator 3. After completion of tuning a storage capacitor 115, Fig. 2, at the output of the level variation detector 43 maintains the transistor 53 or 55 on for a time to prevent immediate return of the automatic tuning correction to the oscillator 3. As a smoothing capacitor 56 is discharged by conduction of transistor 53 or 55 during tuning there is no residual voltage to cause unwanted detuning when the automatic tuning correction is switched in again and this is useful in remote control receivers which employ stepwise tuning. In a modification when variable capacitors or inductors are used for coarse tuning the oscillator, the connection between 29 and 25 is removed, 25 is then connected to a fixed potential and the level adjusting circuit 31 consists of a single potentiometer the wiper of which is mechanically coupled to means for varying the capacitors or inductors. The tuning correction suppression circuit 19 may be used with digital tuning circuits. The receiver may be of the kind having an automatic station finder in which a tuning voltage varies until a station is found as determined by a further output from the detection circuit 9. The level variation detector 43 is shown in detail in Fig. 2. Any variation in level of the input signal at 41 is fed via a differentiating circuit 57, 61, 63, 65, phase splitter transistors 59, 67, transistors 83, 85 which operate as rectifiers, transistor 87 to a threshold circuit 107, 109, the transistor 107 of which is normally cut off so as to cause an output across the storage capacitor on occurrence of the signal variation at the input 41.
Patent GB-1042720-A (GB)
Title: Magnetic tape recording and reproducing apparatus
IPC: H04N5/783
Filed: 1964-12-24
Abstract: 1,042,720. Playing back still television pictures. SONY CORPORATION. Dec. 24, 1964 [Dec. 26, 1963], No. 52474/64. Heading G5R. When a still picture is played back from a magnetic tape by a rotating head scanning an oblique track on the tape with the tape stationary, the tape gets worn and the output signal level is reduced; this reduction in signal level is detected and used either to retract the head from the tape, Fig. 4 (not shown), or to stop the head, Fig. 2 (not shown), or to advance the tape so that the head scans a fresh track, Fig. 5 (not shown). In Fig. 4 a detector 16 responds to the reduced output level by energizing a solenoid 18 thereby depressing a plunger 27 in the rotary shaft 2 carrying the disc 19 supporting the head 3. Depression of the plunger retracts a member 23, which is coupled by a pin 21 to the head, and so withdraws the head from the tape 5. In Fig. 5 the output of the detector 16 drives a motor 36 operating a cam 34 which closes a pair of contacts to complete the capstan drive circuit so that the tape starts to move; when the signal output returns to its proper level the drive stops and the head continues scanning on an adjacent track. In Fig. 2 the output of detector 16 operates a switch to interrupt the head drive.
Patent GB-1535518-A (GB)
Title: Drive mechanism for louvre blinds
IPC: E06B9/36
Filed: 1975-12-24
Abstract: 1535518 Vertical slat blind H GROSS 24 Dec 1975 [31 Dec 1974] 52797/75 Heading E1J [Also in Division F2] A drive mechanism for a vertical slat blind incorporates a lost-motion arrangement so that the slats turn before they move laterally on opening or closing the blind; the lost motion device comprises an epicyclic gearing arrangement with a sun wheel 14 on the drive shaft 12 (driven from the main shaft 4), two planet wheels 16 with projecting stops 17 and an annulus 15 with stops 18 connected to the output shaft 7 driving the transport mechanism; output shaft 6 driving the slat turning mechanism is driven by shaft 4, slipping clutches are incorporated in each drive mechanism. When the drive shaft 4 is rotated shaft 6 immediately operates the slat turning mechanism, the planet wheels 16 rotate within the annulus until the stops 17, 18 abut when the annulus rotates with the shaft 12.
Patent GB-1244400-A (GB)
Title: Improvements in or relating to trenchless pipe laying apparatus
Inventor: MYERS CRISPIN LESLIE
IPC: E02F5/10
Filed: 1969-10-31
Abstract: 1,244,400. Mole ploughs. C. L. MYERS. 26 Aug., 1970 [31 Oct., 1969], No. 53505/69. Heading A1B. [Also in Division F2]  Trenchless pipe laying apparatus comprises a chassis 5 mounted on a leading skid 6 and two trailing skids 7 all of which are independently, hydraulically or pneumatically adjustable towards or away from the chassis, a blade 12 adjustable under hydraulic or pneumatic control in guide means (rollers 18, 19) and means to displace the apparatus in a pipe laying direction. The displacing means may be a winch mounted on the chassis and connected by cable to a staked tractor or the winch may be mounted on the tractor. The lower edge of the blade terminates in a pointed slug 15 and the leading edge of the blade is pointed as at 17. In use the skids and the blade are adjusted to locate the slug 15 at the required depth and the apparatus is drawn along the ground. The blade 12 and slug 15  open up the ground and flexible pipes 27 from reel 26 is guided via rolls 28-31 to be laid in the hole formed by slug 15. A hopper 23 may be provided to feed aggregate &c on to the pipe when laid, if necessary and the chassis may be provided with road wheels 24. A second embodiment (Fig. 5, not shown) is adapted to lay pipe sections and has a pivotal rudder arrangement (34) behind the blade (12) to guide the pipe sections and a presser wheel (39) to press the pipe sections into the ground.
Patent GB-1184299-A (GB)
Title: Incubator Egg Tray
Inventor: CANNON ROBERT WILLIAM
IPC: A01K41/06
Filed: 1968-11-12
Abstract: 1,184,299. Trays. R. W. CANNON. 12 Nov., 1968 [21 Nov., 1967; 6 Nov., 1968], No. 53584/68. Heading B8P. [Also in Division A1] An egg tray particularly for incubators comprises a grid-like structure with rectangular apertures into each of which protrudes resilient fingers 66, 68, 70, 72, upon which an egg sits upwardly and downwardly extending fingers 94, 96, 98 &c. and hollow support posts 40-46 which engage in the hollow support posts of a similar tray stacked thereupon, the upwardly and downwardly supporting fingers 94 &c. supporting the eggs while allowing free circulation of air. The tray is preferably of plastics and resilient to some extent.
Patent GB-1447640-A (GB)
Title: Liquid crystal display system
IPC: G04G9/06
Filed: 1973-11-22
Abstract: 1447640 Alpha numeric displays HITACHI Ltd 22 Nov 1973 [27 Nov 1972] 54197/73 Heading G5C A display system comprises a plurality of liquid crystal devices LCD1... LCDn each including a first common electrode and a plurality of second segment electrodes, respective segment electrodes being connected in common, means for selectively applying to first electrodes high, medium or low level potentials V H , V M , V L , and means for selectively applying to second electrodes high or low level potentials; the potential V H -V L  energizing the liquid crystal, the potentials V H -V M  and V M -V L  being insufficient to energize the liquid crystal. The driving circuit includes P- and N-channel insulated gate F.E.T.'s M1, M3 and M2, M4 respectively, AND gate AG1, OR gate OG1, exclusive OR gate EG1 and inverter IN1. Additional circuits applying signals Vs 1 ... Vsm are not shown. With inputs comprising bidirectional drive BD, device and segment selectmg signals DT1 ... n, S1 ... Sm, pulses Vc1 ... Vcn are sequentially applied to the common electrodes and pulse trains Vs1 ... Vsm to segment electrodes. The potential across the liquid crystal is Vc1-Vs1 and this is only V H -V L  when selecting signals are applied, e.g. DT1 and S1. In another embodiment Vs1 includes a Vm component between V H  and V L  pulses so that V M  is applied to non-selected electrodes. In a further embodiment with low power consumption the driving pulses have a duration equal to a scan period and pulse train BD is used as a source of blanking pulses which limit the time which potentials are applied.
Patent GB-1298248-A (GB)
Title: Preparation of tris-peroxides
Inventor: BAFFORD RICHARD ANTHONY
IPC: C07C409/16
Filed: 1970-11-16
Abstract: 1298248 1,3,5 - Tris[alpha - (alkylperoxy)- isopropyl]benzene; phosphite esters PENNWALT CORP 16 Nov 1970 [18 Nov 1969] 54438/70 Headings C2C and C2P A liquid tris-peroxide composition consisting predominantly of 1,3,5-tris - [α - (alkylperoxy)- isopropyl] - benzene is prepared by (a) heating a tertiary hydroxyalkyl acetylene of the formula R<SP>1</SP>-C#CH, where R<SP>1</SP> is alkyl or cycloalkyl group containing a hydroxy group substituted on a tertiary carbon atom, in solution in an inert solvent in the presence of nickel tetracarboxyl and a triaryl phosphite of the formula (R n ArO) 3 P where Ar is phenyl or naphthyl, R is alkyl, cycloalkyl or aryl, and n is an integer of from 1 to 4 when Ar is phenyl or zero or an integer from 1 to 6 when Ar is naphthyl, with the proviso that, in each Ar group, one position adjacent to the oxygen-attached carbon atom is unsubstituted; (b) treating the crystalline product of (a) in solution in a substantially non- aqueous solvent and in the presence of a strong acid with sufficient t-alkyl hydroperoxide to peroxidize substantially all the hydroxy groups present in the crystalline product and (c) recovering from the product of (b) a liquid trisperoxide-containing composition consisting predominantly of 1,3,5 - tris - [α - (alkylperoxy)- isopropyl]-benzene. The triaryl phosphites may be prepared from the appropriate phenol and phosphorus trichloride. The trisperoxide compositions may be used as cross-linking agents for organic polymers.