baber/WOPTO huggingface dataset:
Patent GB-1187667-A (GB)
Title: Process for the production of New Isoindoline Derivatives
Inventor: LEISTER HEINRICH
IPC: C09B57/04
Filed: 1967-08-09
Abstract: 1,187,667. Iso-indoline derivatives. FARBENFABRIKEN BAYER A.G. 9 Aug., 1967 [9 Sept., 1966], No. 36624/67. Heading C4P. The invention comprises compounds of the formula in which the cyclic radical R may be substituted or tetrahydrogenated or in the form of a heterocyclic ring containing nitrogen or sulphur and R 1  and R 2 , which are different, are bivalent radicals of compounds which contain two active hydrogen atoms attached to a carbon or nitrogen atom, with the proviso that of R 1  and R 2 , only one, at most, may be of the formula =N-Z, where Z denotes a heterocycle which may contain N and/or O and/or S as hetero atoms and with which an unsubstituted or substituted benzene nucleus may be fused. The invention further comprises a process for the production of an isoindoline derivative which comprises reacting an isoindoline containing easily exchangeable substituents in the 1- and 3-positions with a first compound containing two active hydrogen atoms attached to a carbon or nitrogen atom, using 1 mole of the said first compound per mole of indoline and carrying out the reaction at temperatures from 10 to 110 C. and reacting the resulting reaction product with at least an equimolar amount of a second compound containing two active hydrogen atoms attached to a carbon or nitrogen atom at temperatures from 80 to 220 C., with the proviso that of the first and second compounds, only one, at most may be a primary 5- or 6-membered heterocyclic amine. The first compound may contain (a) a malonic acid ester radical or a bivalent radical of a cyanomethyl derivative of the structure in which A is a nitrile group; or a carboxylic acid amide group which may contain alkyl groups, hydroxyalkyl groups or optionally substituted aryl radicals on the nitrogen atom of the amide group; or a carboxylic acid ester group; or a -CO- alkyl or -CO- aryl group; or a heterocyclic ring system or an optionally substituted aryl radical or (b) a bivalent radical of the structure in which B is the complement of a five or sixmembered or heterocyclic ring; or (c) an imide radical derived from a primary amine of the heterocyclic series. The second compound may contain one of the radicals (a), (b) or (c) other than the radical contained by the first compound or (d) an imide radical derived from an aliphatic or aromatic primary amine or (e) a hydrazone radical of the structure in which D is hydrogen or CH 3  and E is hydrogen or CH 3  or D is hydrogen and E is an optionally substituted aryl group or D and E together constitute the complement of a 5- or 6-membered heterocyclic ring. Long lists of starting materials and numerous examples are furnished. The products are suitable for dyeing and printing synthetic materials made of e.g. polyesters, polyamides, cellulose triacetate and polyacrylonitrile.
Patent GB-865368-A (GB)
Title: Improvements in or relating to transistors
Inventor: FULLER DENNIS QUINTRELL
IPC: H01L29/00
Filed: 1957-11-26
Abstract: 865,368. Transistors. PYE Ltd. Nov. 26, 1958 [Nov. 26, 1957], No. 36805/57. Class 37: A junction transistor comprises an annular rectifying control electrode arranged in the viscosity of the base-emitter junction and surrounding the emitter, so that it can influence the emitter current. The Figure shows an N-type body 1 having a collector 2, central emitter 3, base connection 1a, and annular P- type control electrode 4. The control electrode is reverse biased and the resulting space charge region controls the emitter current. The control electrode may be provided by alloying, plating or depositing and may consist of a plurality of separate areas in generally annular form. As shown, the input signal is applied across resistor R3 between the control and base electrodes, 'but may be applied to other electrodes.
Patent GB-408407-A (GB)
Title: Improvements in or relating to lining concrete pipes
IPC: C04B26/26
Filed: 1932-12-30
Abstract: 408,407. Lined concrete pipes. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, TWISS, D. F., OWEN, E. W. B., and McCOWAN, W., Fort Dunlop, Birmingham. Dec. 30, 1932, No. 36849. [Class 99 (ii).] A concrete pipe is provided with a lining comprising a priming layer of bitumen and short fibres, the fibres preferably not exceeding 2 mm. in length, and a surface layer of thermoplastic material containing rubber. The priming layer may also include rubber and is applied to the pipe as a solution in coal tar naphtha, and when the solvent has evaporated the surface layer of rubber, which is preferably mixed with paraffin wax, is applied in a molten condition. The latter coating may be distributed evenly by an internally-heated spherical or disc-like tool adapted to be pulled through the pipe, although, if desired, the coating may be appled so as to have a greater thickness in the lower half of the pipe. The above materials may also be used for jointing together the ends of such lined pipes.
Patent GB-507134-A (GB)
Title: Improvements in feeding toys
IPC: A63H3/18
Filed: 1938-12-19
Abstract: 507,134. Toys. RETKIN, W. Dec. 19, 1938, No. 36889. [Class 132 (iii)] In a feeding toy the head and jaws are normally closed by spring action but are separable by a pull cord or wire 13 operable from the exterior, food being collected in a receptacle 9 housed within the body of the toy. The receptacle is accessible through a slit opening 12 closed by a sliding clasp fastening.
Patent GB-1356640-A (GB)
Title: Die casting processes
IPC: B22D17/20
Filed: 1971-08-05
Abstract: 1356640 Casting processes HONDA GIKEN KOGYO KK 5 Aug 1971 [6 Aug 1970 36954/71 Heading B3F In a pressure die casting process in which metal is forced from an injection sleeve 4 into a die cavity 2 by means of a piston 3, an additive 7 is positioned in or supplied to the sleeve 4 or runner 6 so that it mixes with and becomes dispersed in the molten metal. The additive may be in the form of a cube made from powder and located in the sleeve or runner, or it may be supplied to the injection sleeve from a container 9. When casting aluminium or an alloy .thereof the additive may be Pb, Bi, Sn, Sb,Zn, Te, Fe, Si, Cr, Mn, Ni, Co, Cu, Ti, C, S, a resin, steatite, mica, fluorite, the nitrate of K, Na, or B molybdenum disulphide, tungsten disulphide, lead sulphide, silicon carbide, iron carbide, aluminium oxide, chromium oxide, or lead oxide, carbonate or sulphate. The shape of the gate 5 is such as to cause a turbulent flow of metal.
Patent GB-1423559-A (GB)
Title: Process for the linearisation of polyurethanes with lactams and lactam addition compounds
IPC: C08G18/83
Filed: 1973-08-03
Abstract: 1423559 Linearization of polyurethanes BAYER AG 3 Aug 1973 [5 Aug 1972] 36963/73 Heading C3R Polyurethanes are linearized, i.e. biuret, allophanate, uretone imine and uretdione groups which may be contained therein are eliminated by treatment with a linearizing agent which is at least one melted or dissolved lactam and/or addition product of a lactam and an adduct-forming compound which contains at least one Zerewitinoff active hydrogen atom, the resultant state of swelling being maintained for at least 5 seconds prior to the partial or complete removal of the linearizing agent. Suitably the polyurethane is in the form of a foam which is impregnated with the linearizing agent. Suitably the lactam is butyrolactam, valerolactam, #-caprolactam or N-methylhexahydro - 1,4 - diazopinone - (3) and the addition product may be of #-caprolactam and water or methanol. The lactam may be caused to crystallize within the polyurethane matrix by evaporation of the adduct-forming compound. Washing with water removes the lactam from the matrix.
Patent GB-359281-A (GB)
Title: An improved hand support for passengers in a vehicle
IPC: B61D49/00
Filed: 1930-12-08
Abstract: 359,281. Hand-grips; hinges. POWER, R. F., 18, Chesterford Gardens, Hampstead, London. Dec. 8, 1930, No. 37030. [Class 103 (iv).] A hanging support or hand-grip for the use of standing passengers in vehicles is adapted normally to swing freely so as to be substantially non- injurious to passengers colliding therewith, but, when pressure is exerted on it by the grip of a person using it, to be rendered rigid and thereby provide a more reliable support. Preferably, the hand-grip comprises a ball-andsocket or like universal joint the elements of which have limbs or extensions associated respectively with the vehicle body and with the handle proper, with a sleeve connected with the handle is arranged to slide in or on one limb so as to engage or release the other limb, i.e. to render the universal joint inoperative or operative. In the construction shown in Fig. 1 the handle 10 is slidable within one limb 4 formed integrally with the element B of a ball-and-socket joint, and is connected by a cord 11 to a cross-pin 6 on a sleeve 7 slidable on the second limb 1, which forms part of a ceiling bracket 2 and carries the other element A of the joint. When a passenger grips the handle 10, the sleeve 7 is pulled downwards, so as to nullify the universal joint, against the action of a spring 8, which subsequently returns the parts to a freely-swinging position. In a modification, Fig. 3, in which the device is suspended from a wall bracket 2, the sleeve 7 slides within the limb 1 and is pulled downwards to engage an extension 12 of the ball element A. Air passages may be provided for the escape of any air trapped within the limb 1.
Patent GB-1470202-A (GB)
Title: Hydrophilic softeners for dispersions and pastes of synthetic material
IPC: C08L71/02
Filed: 1974-08-23
Abstract: 1470202 Coated textiles HENKEL & CIE GmbH 23 Aug 1974 [27 Aug 1973] 37065/74 Heading B2E [Also in Divisions C3 and Dl] Textile materials, e.g. cotton woven fabric, a non-woven fabric of rayon staple fibres, a cotton fabric coated with polyurethane (in which the coating is applied on the cotton side) and a polyvinyl chloride film are coated with aqueous dispersions, e.g. of polyvinyl acetate, polyvinyl chloride, polymers of (meth) acrylic acid esters, maleic acid ester polymers, polybutadiene or polystyrene, which contain as softener a polyalkylene glycol fatty acid ester: in which R<SP>1</SP> and R<SP>2</SP> are like or different residues of C 12-22  fatty acids, e.g. stearic, palmitic or behenic acid, and A is the residue of a polyalkylene glycol of molecular weight 2000-4000 which contains 40-50% by wt. of ethylene oxide and 50-60% by wt. of propylene oxide. The polymeric softeners remain in the material after washing and chemical cleaning.
Patent GB-1096821-A (GB)
Title: Improvements relating to pulse generating circuits
Inventor: SCOLES GRAHAM JOHN
IPC: H03K3/55
Filed: 1963-09-20
Abstract: 1,096,821. Pulse generating circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 5, 1964 [Sept. 20, 1963], No. 37165/63. Heading H3P. In a circuit in which a charged pulse forming network PFN is discharged to generate a pulse, protection against reverse voltages is provided by a resistor R shunted by an inductor L3 in the charging circuit and a reverse diode D3 across the charging circuit. In Fig. 2 (not shown) the invention is applied to an amplitude stabilized circuit of the type described in Specification 1,053,656.
Patent GB-1516880-A (GB)
Title: Servo arrangement
IPC: H02H3/12
Filed: 1975-09-11
Abstract: 1516880 Lamp failure alarms BASF AG 11 Sept 1975 [12 Sept 1974] 37369/74 Heading G4N [Also in Division H2] A tachometer circuit 1 is provided with a loss-of-current detector comprises an oscillator T 1 , L 1 , C 2 , C 3  which is inhibited from oscillating except when the direct current through the circuit 1 fails, whereupon a detector 6, 7 sensitive to the oscillator output causes a switch T 2  to change state. The direct current being monitored either flows directly through an inductance L 1  of the oscillator or through an auxiliary coil coupled to L 1 . The detector may monitor the current through the lanp 1 of an optical tachometer in a motor speed control system, triggering of switch T 2  either disabling the motor or operating an alarm.
Patent GB-1309825-A (GB)
Title: Shrinkproofing wool fabrics
IPC: D06M15/564
Filed: 1970-08-04
Abstract: 1309825 Shrinkproofing wool WYANDOTTE CHEMICALS CORP 4 Aug 1970 [5 Aug 1969] 37476/70 Heading D1P In a method for rendering wool fabric resistant to shrinkage, the fabric is padded with a polyurethane latex in a bath containing from 5 to 10% by weight of solids, the fabric being subsequently dried at 100 to 120F for 5 to 15 mins., and cured at 260F to 280F for 5 to 10 mins. The bath is prepared by diluting with water a polyurethane latex prepared by the chain extension of a prepolymer terminated with an isocyanate grouping, itself prepared by reaction of an organic di-isocyanate with a polyalkylene ether polyol with an equivalent weight of at least 500. The polyalkylene ether polyols are obtained from the reaction of an alkylene oxide (e.g. propylene oxide, butylene oxide, styrene oxide, epichlorohydrin, tetrahydrofuran, cyclohexene oxide, and mixtures thereof, or mixtures of these with ethylene oxide not containing more than 50% ethylene oxide) with a compound having at least three active hydrogen atoms (e.g. glycerol, trimethylolpropane, pentaerythritol, sorbitol, sucrose, aconitic, trimellitic or hemimellitic acids, phosphoric acid, ethylene diamine, propylenediamine, diethylenetriamine, triisopropanolamine, pyrogallol, dihydroxybenzoic acid, hydroxyphthalic acids and inositol mercaptans and benzene disulphoramide. Organic di-isocyanates which may be employed include 2:4 tolylene diisocyanate, or mixtures thereof with 2:6 tolylene diisocyanate, 4,4' methylene-bis (phenyl isocyanate) and m-phenylene diisocyanate, or tetramethylene diisocyanate, hexamethylene diisocyanate, 1:4 cyclohexylene diisocyanates and 4,4' methylene bis-cyclohexylisocyanate). Chain extension of the prepolymer is carried out by adding a chain extending agent to the emulsified prepolymer. 2-methyl piperazine is a preferred agent in this respect but numerous others including di- and triamines and amino- and hydroxysubstituted acids are given in the Specification.
Patent GB-1120481-A (GB)
Title: Improvements in or relating to separating apparatus
Inventor: FREELAND WILLIAM
IPC: B03C1/06
Filed: 1965-09-02
Abstract: 1,120,481. Magnetic separator. M.E.L.EQUIPMENT CO. Ltd. 13 June, 1966 [2 Sept., 1965], No. 37503/65. Heading B2J. In a magnetic separator for removing ferromagnetic particles from a liquid, e.g. machine tool coolant, the liquid to be cleaned is fed via a tank 4 over the upper surface of a ramp 1 formed by an inclined plate 2 of non- magetic material. A number of permanent magnets 14 are carried by parallel endless chains (8, 9), Fig. 2 (not shown) which are driven to move the magnets 14 up an inclined path parallel to and adjacent the underside of the ramp so as to draw ferromagnetic particles from the liquid on to the upper surface of the ramp and up the ramp, the particles being discharged from the ramp by means of a rotary scraper 17 disposed at or near the upper end of the ramp. The liquid is introduced into the tank on one side of a partition 5 which has a portion 6 defining with the ramp a duct 6a through which the liquid passes to the other side of the partition where an outlet 7 is provided for clean liquid. The magnets 14, which may be of the ring type, are mounted in rows on transverse steel plates 15 fixed at their ends to the chains (8, 9) which are driven via sprockets and chains by an electric motor 12 which also drives the scraper 17 through sprocket and chains. The scraper may comprise one or more blades 20 which are preferably flexible and made of rubber or plastics. The chains 8, 9 and the magnets are enclosed in a casing 16 of non-magnetic material the upper wall of which is formed by the plate 2. The casing is supporting by a structure which includes a telescopic strut 23 to enable the slope of the ramp 1 to be varied.
Patent GB-1213300-A (GB)
Title: Improvements relating to electrical control circuits for firing high power silicon controlled rectifiers
Inventor: MOORE GEOFFREY ROBERT
IPC: H03K17/16
Filed: 1967-08-15
Abstract: 1,213,300. Supply control systems. SOUTH LONDON ELECTRICAL EQUIPMENT CO. Ltd. 15 Aug., 1968 [15 Aug., 1967], No. 37518/67. Heading H2H. A control circuit arranged to cause the firing of a high power silicon controlled rectifier switch is connected to the gate of the rectifier and includes a further S.C.R. whose firing is arranged to be initiated by an impulse in its own gate circuit and includes a filter circuit, presenting low impedance to transients, connected across the gate circuit of the high power S.C.R. As shown identical circuits control the firing on alternate half cycles of high power silicon controlled rectifiers SCR3 and SCR4 to supply a welding transformer WT from mains L1, L2. The identical circuits are also fed from mains L1, L2 through a transformer T and each has a further silicon controlled rectifier SCR1 fired by narrow pulses across transient preventing resistor R1 and capacitor C1. Capacitor C3 and resistor R3 provide a voltage gradient limiter protecting SCR1. A Zener diode ZD1 limits the amplitude of pulses " X " from SCR1 to give waveform " Y " and resistor RS maintains potential across SCR1 if safety relay contacts CTA are open. Capacitor C5 is a transient suppressor. An indicator circuit (Fig. 2, not shown) may be connected across SCR3 and SCR4 and include a neon N1 which flashes on transients to indicate that full conduction has not been achieved.
Patent GB-829025-A (GB)
Title: Improvements in and relating to cathode ray tubes
Inventor: OXENHAM JOHN KENNETH
IPC: H01J29/48
Filed: 1956-12-10
Abstract: 829,025. Cathode-ray tubes. SYLVANIATHORN COLOUR TELEVISION LABORATORIES Ltd. Nov. 12, 1957 [Dec. 10, 1956], No. 37686 /56. Class 39(1). The electron gun of a cathode-ray tube has a cathode C, Fig. 3, and an apertured grid G, Fig. 4, only one of whose apertures is aligned with the aperture in the first anode A, so that the beam current is smaller than the current to the first anode. Specification 822,552 is referred to.
Patent GB-1158747-A (GB)
Title: Lasting Machine
Inventor: KAMBORIAN JACOB SIMON
IPC: A43D27/00
Filed: 1968-02-23
Abstract: 1,158,747. Boots &c. J. S. KAMBORIAN. 23 Feb., 1968 [8 March, 1967], No. 37726/68. Divided out of 1,158,743. Heading A3B. The subject-matter of this specification forms part of that described in Specification 1,158,743 but the claims are concerned with a heel seat lasting machine including a support for supporting a shoe bottom down in the machine and a wiper mount carrying wipers and a heel pad above the the wiper mount is moved towards the shoe wipers, the arrangement being such that until the heel paid contacts the shoe which causes the wiper mount to stop, the heel pad is retracted, the wiper mount is then raised until the wipers are level with the heel seat of the insole and the wipers perform their wiping operation.
Patent GB-1492328-A (GB)
Title: Process for joining parts of polyvinylidene fluoride
IPC: B29C55/00
Filed: 1975-09-16
Abstract: 1492328 Tube couplings &C PRODUITS CHIMIQUES UGINE KUHLMANN 16 Sept 1975 [20 Sept 1974] 38056/75 Heading F2G [Also in Division B5] Two polyvinylidene fluoride parts, one part being thicker than the other part, are joined together by coating the part of lesser thickness with a solvent which will dissolve polyvinylidene fluoride when heated or with a solution obtained by disssolving polyvinylidene fluoride in a heated solvent, heating the thicker part to a temperature between 150‹ and 320‹ C., and bringing the parts into contact and holding them in that position during cooling. The thinner part may be a tube and the other part a tube, a sleeve, a straight or elbow joint, a reduction joint, a threaded end, a collar, an expansion joint, a valve or a tap. In Examples, two tubes are joined by heating the inner surface of the thicker tube by the male portion of a heated metal muff, pushing the end of this tube over the end of the thinner tube which has previously been coated with a solvent or a solution of polyvinylidene fluoride in a heated solvent. In another Example, pipes are secured in holes in a sheet. Specified solvents, used either alone or mixed, are dimethyl formamide, dimethyl acetamide, tetrahydrofuran, dimethyl sulphoxide, cyclohexanone, hexamethyl phosphoramide and butyrolactone.
Patent GB-1144372-A (GB)
Title: Improvements in or relating to gas taps
IPC: F23Q9/14
Filed: 1966-08-25
Abstract: 1,144,372. Valves. ELEKTRO-UND GASARMATUREN-FABRIK G.m.b.H. 25 Aug., 1966 [10 Sept., 1965], No. 38154/66. Heading F2V. A gas tap comprises a rotatable plug valve 2 and a thermally responsive throttle valve (not shown), the plug and the setting of the throttle valve being controlled by rotation of a stem 3. The drive arrangement between the stem and valves is such that when the plug is open, the drive to the plug is disconnected. The plug 2 has a spindle portion slotted at 13 to receive a member 7 which is loaded by a spring 14 into contact with a cam surface 8. The member 7 is slotted at 23 to receive a pin 20 carried by the stem 3 which also carries member 9 with a cam surface 10. With the valve 2 closed, the stem 3 is rotated and the member 7 rotates the valve plug 2 to the open position at which position the cam surface 8 moves the member 7 out of the slot 23 after which further rotation of the stem rotates the member 9 whose cam surface 10 adjusts the setting of the thermal responsive throttle valve. In a modification, the cam surface is replaced by a cylindrical surface which moves a pin into and out of the slot 23.
Patent GB-1586266-A (GB)
Title: Apparatus for removing finely divided solids from gas
IPC: B01D46/34
Filed: 1977-09-13
Abstract: The gas is led through a contact material which consists of solid particles and is held between two cylindrical, concentric walls (6, 9). The outer wall (6) has slits the vanes of which are bent outwards and possess an inclination to the vertical and the slit openings of which have a width such that the majority of the contact material particles (14) can pass through the slits. The inner wall is perforated and therefore gas permeable. The perforation can consist of slits having inwardly inclined slit vanes. The solids contained in the gas are retained in the contact material (14) which is moved downwards through and out of the annular space between the two concentric cylindrical walls (6, 9), treated in order to separate out the entrained solids and fed again to the upper end of the annular chamber. A small proportion of the contact material (14) passes through the slits in the outer cylindrical wall (6) and thus prevents blockage of the slits by accumulation of the aforementioned solids. The clean gas is removed from the space surrounded by the inner cylindrical wall (9). <IMAGE>
Patent GB-1392008-A (GB)
Title: Epoxides derived from triphenylmethane
IPC: C08G59/32
Filed: 1972-08-17
Abstract: 1392008 Glycidyl ethers of tris-(hydroxyphenyl)alkanes DOW CHEMICAL CO 17 Aug 1972 [19 Aug 1971] 38385/72 Heading C2C [Also in Divisions C3 and C4] The invention comprises epoxides (I), when Q ish ydrogen or C 1-10  alkyl ; each R is independently C 1-12  alkyl, C 1-12  alkoxy, phenyl or C 3-6  cycloalkyl; each R<SP>1</SP> is independently C 1-3  alkyl; each y is independently hydrogen or methyl; Z is H or a group (A); x is Cl, Br or N0 2 ; each m is independently 0 or 1; each p is independently 0, 1 or 2; p<SP>1</SP> is 1 or 2 and n is 0 or an integer of 1-6 and their preparation by reacting a compound (II) with at least 5 moles, per hydroxyl equivalent, of a compound (III), where Hal is halogen, in the presence of a catalyst which promotes reaction between phenolic hydroxy groups and the epihalohydrin without causing dehydrohalogenation at 60- 150 C. for at least 30 min., cooling to 35- 70 C. and adding at least one equivalent of caustic alkali per hydroxyl equivalent. Trisphenols (II) may be made by condensing an alkoxy substituted aromatic aldehyde or ketone with an excess of a substituted or unsubstituted phenol.