baber/WOPTO huggingface dataset:
Patent GB-1258403-A (GB)
IPC: G01N30/84
Filed: 1968-09-11
Abstract: 1,258,403. Gas chromatography. CALIFORNIA INSTITUTE OF TECHNOLOGY. 10 Sept., 1969 [11 Sept., 1968], No. 43260/68. Heading B1X. After conventional separation of a sample in a first carrier gas into its components by gas chromatography, the effluent stream from the column comprising the separated components is mixed with a second carrier gas which is added at a controlled constant rate not greater than that at which the effluent stream flows, and the mixed stream is then passed to a gas transfer device in which the first carrier gas is removed, so that the residual stream contains a higher concentration of the separated components in the second carrier gas than was present in the first carrier gas, whereby the subsequent detection of components initially present in low concentration is facilitated. Whe nthe first carrier gas is hydrogen and the second carrier gas is helium, a suitable transfer device is a heated palladium/silver alloy tube which allows the hydrogen to pass through the walls; pumping may be achieved by passing oxygen over the external surface of the tube so that emergent hydrogen is immediately converted to water catalytically. Using such apparatus, (a) a mixture of 90% A and 10% CH 4  was separated on a molecular sieve column; (b) a C 1 -C 5  ester mixture was separated on an open column; (c) a gasoline mixture was separated on an open stainless steel column internally coated with squalane; and (d) A and O 2  may be separated. The system is of particular application in conjunction with ionization, thermal conductivity, gas density or mass spectrometer detectors.
Patent GB-1265041-A (GB)
IPC: G01J5/30
Filed: 1969-04-10
Abstract: 1,265,041. Transistor amplifying circuits. KOLLSMAN INSTRUMENT Ltd. 2 April, 1970 [10 April, 1969], No. 18526/69. Heading H3T. [Also in Divisions G1 and G4] An optical pyrometer head delivers signals varying non-linearly with temperature to a buffer and conditioning amplifier A1, the output of which is linearized in circuit 1 and fed to output amplifiers A2, A3 for control or indication and/or for feedback purposes. For example, in the monitoring of a gas turbine engine the output signals may be used for engine control or flight deck indication, or fed back to the pyrometer head for temperature compensation. Amplifier A1, Fig. 2, comprises a silicon chip having long-tailed pair Q1, Q2, temperature stabilized by heating transistor Q4, fed by amplifier 3 receiving sensing transistor Q3 output. Amplifier 2 is provided for input offset changes fed back via R2, R1, and is temperature compensated by circuit D3, D4, VR1, VR2. Diodes D1, D2 provide protection against input voltage spikes. The input amplifier may be a chopper-amplifier and include means to chop the input, an amplifier of the square wave formed and a detector. Alternatively it may be a chopper-stabilized device in which the lowfrequency component of the input is chopped, amplified and demodulated, followed by D.C. amplification of the low and high-frequency components. Linearizing circuit 1, Fig. 3 (not shown), is designed to work within specified tolerances for lower and higher temperature ranges. This involves changing from one equation for the lower to another for the higher temperatures, Fig. 10 (not shown). The circuit includes three channels feeding a summing amplifier (5), one containing amplifier 4 and a temperaturestabilized matched transistor pair (Q5, Q6) &c. renders the input signal logarithmic, thereby providing some linearization of the output. Modifications to allow for the different temperature ranges is provided by channels including amplifiers (6 or 7), the transistor (Q1) turning on at the changeover level. Output amplifiers A2, A3, Fig. 4 (not shown), have provision in which on interruption of supply, the feedback output can maintain its previous value by means of a feedback capacitor (C2) and supplementary A.C. supply provided by capacitor (C3). Power supplies, Fig. 5 (not shown), for all circuits are also described. Test facilities.-On pressing switches (PTT1) and (PTT2), a test voltage is applied to the circuit which should give a predetermined output. A test box may be connected to isolate the pyrometer head and routine test. Time-temperature record, indicative of turbine blade creep, may additionally be made by passing output of amplifier (A1) through a voltage to frequency converter to a pulse counter.
Patent GB-1266243-A (GB)
IPC: H01L29/00
Filed: 1969-10-14
Abstract: 1,266,243. Semi-conductor devices. TEXAS INSTRUMENTS Inc. 14 Oct., 1969 [30 Dec., 1968], No. 50404/69. Heading H1K. A process for manufacturing a metal insulator semi-conductor FET comprises the following steps: a doped silicon dioxide layer is formed on an oppositely doped silicon substrate 11, the layer subsequently being partially removed to form two spaced bodies 13a, 13b, a film 15 of silicon nitride is deposited over the substrate surface and then the film 15 is removed from the area between the bodies, followed by the removal from this area of a thin layer of the substrate, a silicon dioxide layer 19 is formed on the area by heating in an oxygen atmosphere, and a second silicon nitride film 21 deposited over the substrate surface; the source and drain regions 23a, 23b are formed by diffusing the impurities from the bodies 13a, 13b into substrate 11. Windows are etched subsequently through the nitride films and the blocks to the substrate layer, metallizations 27a, 27b subsequently being deposited in these windows to form the source and drain electrodes, and metallization 29 forming the gate electrode. The source and drain dopant may be boron, and an anodic etch may be used to remove the desired area of the silicon nitride film 15. The steps of removing the thin layer of silicon substrate in the area between the blocks, forming the layer of silicon dioxide on this area, and the second silicon nitride film, may all be carried out sequentially within the same reactor tube.
Patent GB-1287968-A (GB)
IPC: B23B31/16
Filed: 1970-08-04
Abstract: 1287968 Chucks ERICKSON TOOL CO 4 Aug 1970 37618/70 Heading B3B A chuck comprises a body 2, a plurality of jaws 4 at least one of which is radially movable, actuator means e.g. wedge block 7, movable transversely of said jaw 4 and having inclined teeth 6 intermeshing with teeth 5 on said jaw to move the latter radially responsive to transverse movements of the wedge block 7, and lock means e.g. locking pin 8, engageable with said jaw when said teeth 5 and 6 are disengaged during a jaw change or reversing operation to retain the jaw 4 in the body in the event of inadvertent rotation of the chuck while said teeth are disengaged said lock means being releasable by manually operated external release means e.g. unlocking member 27. To disengage the teeth 5 and 6 the wedge block 7 is moved transversely to an end position whereupon a recess 24 allows a plunger 23 to move radially inwardly which releases the locking pin 8. Manual depression of member 27 releases the locking pin 8. The wedge block 7 is moved by a screw 11 having a wedge adjusted end seating to pre-load the screw. The driven wedge block 7 is connected to other wedge blocks for each jaw by engagement of a spigot 21 in a driving annular ring 18. Alternative locking arrangements are provided in which a manual member is pulled to release the locking pin (Figs. 5, 6, not shown); and in which the operating means for the locking pin act to lock the jaw when centrifugal forces are acting (Figs. 8-12, not shown). In these latter arrangements the recess for receiving the radial plunger is provided in the driving ring 18; or a spring biased striker is mounted in the ring 18 to be actuated by a radial plunger.
Patent GB-1296319-A (GB)
IPC: C09B62/345
Filed: 1971-04-19
Abstract: 1296319 Anthraquinone dyes BAYER AG 19 April 1971 [28 March 1970] 24843/71 Heading C4P The invention comprises anthraquinine dyes having the formula where R 1  is hydrogen, hydroxyl, halogen er a sulphonic acid group, R 2  is hydrogen or a substituent; R 3  is hydrogen or a sulphonic acid group and R 4  is an optionally substituted alkyl, aralkyl or aryl group. The dyes may be prepared by condensing the required 1-amino-2- sulpho-4-bromoanthraquinone with an amine of formula in the presence of a hydrogen bromide binding agent and copper or a copper compound, at 40-100 C. Alternatively, they may be reacted with amines where R 3  is hydrogen and the produced dyes sulphonated. In a preferred embodiment amines of formula are used and the compounds reacted with a salt of a sulphuric acid of formula R 4 SO 2 H. The dyes are used for dyeing and printing cellulose and nitrogen-containing materials e.g. wool, silk and polyamide fibres, and give greenish blue shades on these materials.
Patent GB-1297347-A (GB)
IPC: B60T1/14
Filed: 1971-04-26
Abstract: 1297347 Emergency brakes; crash bags DAIMLER-BENZ AG 26 April 1971 [28 April 1970] 11429/71 Headings B7B and B7H [Also in Division F2] A motor-road vehicle has on its underside at least one gas cushion of the closed-bag type which is inflated to bear downwardly on the road surface and thereby act as emergency brake. The cushion 3 has a plate 7 which is of abrasion resistant material and may be grooved or may have rollers or spikes. The cushion is independent or dependent on actuation of the normal brakes. By limiting inflation pressure and/or inflated cushion depth the vehicle steered axle suspension is relieved but only so far as to retain steering control, whereas the unsteered axle suspension is relieved to a greater extent. The inflation of the cushion may be accompanied by inflation of cushions inside the vehicle or on the front, back, sides and/or the roof of the vehicle.
Patent GB-1304681-A (GB)
IPC: H03B19/16
Filed: 1969-01-10
Abstract: 1304681 Harmonic generator MULLARD Ltd 7 April 1970 [10 Jan 1969 6 May 1969] 1564/69 and 22981/69 Heading H2F [Also in Division H3]  In a frequency multiplier circuit which functions as a harmonic generator a varactor diode X4 is shunted by a resistance R1 and in parallel with R1, a resistance R2 in series with diode D2 and potential source V2. Resistance R1 is used to produce a self-biasing of the varactor diode X4. The units R2, D2 and V2 provide a voltage dependent non linear resistance circuit whose function is to render the power output of varactor X4, at T2, independent of the power input at T1. In the second embodiment, Fig. 6, the varactor is shunted by Zener diode 6 and resistor R1. The input of the varactor circuit comprises a tuned circuit as does the output circuit. This circuit is characterized by a linear region in the power output frequency characteristic. Both these circuits may be used as pumps for parametric amplifiers, which for example comprises a varactor diode, which is biased to alter its frequency output. Output power of the parametric amplifier may be stabilized by adjusting the input power characteristics of the pump.
Patent GB-1309500-A (GB)
Title: Composite bodies
IPC: B22D19/08
Filed: 1971-05-25
Abstract: 1309500 Bearings; impregnating ABEX CORP 25 May 1971 17070/71 Heading F2A [Also in Divisions B3 and C1] A method of making composite articles comprises heating a particulate material in the presence of a thermally decomposable binder to form a porous self-sustaining structure 35, locating said structure in a mould cavity having a depth greater than the thickness of the structure and introducing molten metal into said cavity so as to simultaneously impregnate the porous structure 35 and fill the unoccupied portion of the cavity. The molten metal used may be copper, bronze, aluminium or cast iron and the particulate material may be graphite, SiC MoS 2  or Al 2 O 3  or mixtures thereof, optionally together with Cu or Sn. Suitable decomposable binders include resins, silicones silicates and metallic phosphates. The casting operation may be carried out under pressure. The articles produced may be used as bearings or as friction elements for brakes and clutches.
Patent GB-1321647-A (GB)
Title: Energyabsorbing ram
IPC: B60R19/28
Filed: 1970-07-07
Abstract: 1321647 Bumpers M W MILLS 8 June 1971 [7 July 1970] 32998/70 Heading B7J [Also in Division F2] Front and rear vehicle bumpers (not shown) are mounted on a vehicle by one or more spring units comprising co-operating piston and cylinder members 2, 1, one or more springs 11 in the cylinder biasing the piston 2 outwardly, and a guide plunger 9 attached to the cylinder 1 and having an enlarged head 9a which is slidably received in a bore in the piston 2 so as to guide the piston as it moves into the cylinder or imparts to compress the spring(s). The hollow piston 2 is closed by a screw-threaded plug 10 which co-operates with the plunger head 9a to prevent the piston 2 being ejected from the cylinder 1. The spring unit(s) may constitute the sole means of mounting the bumper on the vehicle.
Patent GB-1323952-A (GB)
Title: Play equipment for children
IPC: A63G31/00
Filed: 1971-05-14
Abstract: 1323952 Play equipment T D C PLASTICS Ltd 12 May 1972 [14 May 1971] 15079/71 Heading A6M [Also in Division G1] An apparatus for children's play comprises a base 1 comprising a pair of wells 5 separated by a raised portion 4, the raised portion detachably supporting a cross beam 14 for pivotal motion about a horizontal axis 16, and the wells 5 being provided with children's seats 8. The cross beam 14 may be provided with downwardly extending legs 19 at its extremities to limit the oscillations thereof about axis 16. As described the member 16 has depandant lugs 17 which engage in holes in raised portion 4, there being two sets of holes for arranging the cross beam either (a) lengthwise of the base 1 (as shown) for use with pans 20 as weighing scales, or (b) transverse to the base 1 (not shown) for use with seats (not shown) as a see saw. If the cross beam 14 is completely removed from the base the wells 5 may be used for "imaginative play". For this purpose the wells may be fitted with simulated vehicle controls (e.g. wheels 11). The base &c. may be of glass fibre reinforced plastics sheet and the cross beam of tubular metal.
Patent GB-1325361-A (GB)
Title: Electrical heating devices
IPC: H03B9/10
Filed: 1971-04-19
Abstract: 1325361 Microwave oven circuits C E M TIBBS 19 April 1971 [5 Jan 1970] 474/70 Heading H2H A supply circuit for a microwave oven comprises a magnetron valve 7 supplied by a leakage reactance transformer 2-4 via a bridge rectifier 5, the rectifier output being shunted by a capacitor 9 which capacitor is adapted to protect the circuit from voltage surges caused by fluctuations in the current drawn through the valve 7 in combination with the reactance of the transformer secondary 4. A series capacitor 6 or a valve equal or less than shunt 9 may be included between the seondary 4 and the bridge 5 and a further inductance (10) or (10<SP>1</SP>) ,  Fig. 3 (not shown), may be included in thesupplylead to the valve 7. In a modification, Fig. 4 (not shown), two series capacitors (11), (12) having substantially equal capacitances are connected across the output of the rectifier (5), the secondary (4) of the transformer being connected across one capacitor (11) such that a voltage doubling arrangement is produced, capacitors (11), (12) serving both the obviate the effects of varying currents through the valve (7) and also variations in supply voltage.
Patent GB-1329309-A (GB)
Title: Liquid-containing capsule coated sheet material
IPC: B41M5/124
Filed: 1971-10-05
Abstract: 1329309 Printing with capsular material WASS PRITCHARD & CO Ltd 5 Oct 1971 [5 Oct 1970] 47320/70 Heading B6C [Also in Divisions B2 and D2] Liquid-containing capsules are applied to a sheet material by first applying an adhesive to discrete areas of the sheet material by printing and then depositing the dry capsules on the sheet. The adhesive means may be in the form of a tacky ink applied to the sheet material by lithographic printing, letter press printing or dry offset electrostatic printing, the surface then optionally being brushed to induce an even adhesion. The capules may be mixed with a diluting powder, e.g. French chalk, alumina, titanium oxide. When the capsules are applied to a sheet material carrying a tacky ink by means of a "bronzing machine", anti-static devices may be provided at strategic points on the bronzing machine to reduce undesirable adhesion of capsules on unwanted areas of the sheet due to build-up of static charge during the printing process. Alternatively, the capsules may be applied by means of a powder sprayer. Surplus capsules may be removed by brushing, dusting and suction or electrostatic attraction. A varnish can be applied on top of the capsules to improve the adhesion. The sheet material may be paper, plastics or metal foils. Applications mentioned are (1) for advertising, e.g. perfume-containing capsules applied to paper providing a perfume representative of a product on a printed advertisement, (2) transfers, e.g. a printed pattern of encapsulated dyes on a regenerated cellulose sheet, (3) children's magic painting books, e.g. using encapsulated invisible inks, (4) "no carbon" paper for duplicate copies, e.g. by coating the back of the master sheet with capsules over the required record areas, (5) selfsealing envelopes and bags, e.g. produced by applying an encapsulated adhesive to selected areas, e.g. the flap of an envelope.
Patent GB-1334002-A (GB)
Title: Fluid filters
IPC: B01D46/52
Filed: 1972-05-04
Abstract: 1334002 Air filter D A G MARSHALL 4 May 1972 [4 May 1971] 13065/71 Heading BIT An air filter comprising a web 10 of filter medium, which may be paper, polyurethane foam, woven fabric or glass or nylon felt, whose periphery is embedded in a frame 12 of polystyrene foam is made by filling a frame mould with foamed polystyrene beads and heating it with web 10 embedded therein, to expand and sinter the beads and bond them to web 10 without additional adhesive. Web 10 could be reinforced by perforated or expanded metal sheet(s) and may be pleated.
Patent GB-1336124-A (GB)
Title: Container self-sealing sampling attachment
IPC: B01L3/14
Filed: 1970-09-21
Abstract: 1336124 Sampling gases BUSH BOAKE ALLEN Ltd 21 Sept 1970 [19 Sept 1969] 46249/69 Heading G1B [Also in Division B8] A device for permitting sampling of adding to the contents of a bottle &c by a needle or the like, comprises a body member 1 housing a resilient septum 2 and having a hole 4 through it, one end of which is closed by the septum, the septum being held in radial compression so that a needle &c may be passed through it via the hole and the penetration of the septum so made will seal itself when the needle is withdrawn. The device is fitted to e.g. the crown cork of a bottle with the septum sealing against the cork clips 7, 8 may be fitted to hold the device on to the bottle, the body may be extended to give leverage to enable the device to act as a bottle opener.
Patent GB-1337950-A (GB)
Title: Liquid distribution systems
IPC: F16N7/32
Filed: 1970-12-16
Abstract: 1337950 Dispensing liquids by gaseous pressure DIVERSEY DEVELOPMENT Ltd 16 Dec 1970 [16 Sept 1969] 45508/69 Heading F1R [Also in Divisions B1, B8 and F2] Apparatus for dispensing liquid comprises a container and means for supplying lubricant and water or other liquid thereto to mix therein after which air is supplied under pressure to discharge the mixture. As shown the lubricant is supplied from a reservoir 1 through a non-return valve 4 and pump 2 to enter the container 5 through a nozzle 16 which is spaced beneath a lower end opening of an outlet 6 which has an opening 17, while water is supplied through a line 8, a constant flow device 10 and a control valve 9. After mixing, air is supplied from a compressor 13 through a valve 15 which prevents liquid entering the compressor during filling of the container 5, and the mixture is discharged through the outlet 6 and nozzles 7. An automatic timer 12 controls the compressor 13, pump 2, valve 9 and a control valve 11 which is opened during filling to relieve pressure in the container 5. Two containers 5 may be provided arranged so that one is being discharged as the other fills.
Patent GB-1341311-A (GB)
Title: Process for the production of organic isocyanates
IPC: C07C263/04
Filed: 1972-10-25
Abstract: 1341311 Production of isocyanates QUIMCO GmbH 25 Oct 1972 [25 Oct 1971] 49458/71 Heading C2C Organic isocyanates are produced from an amine or amine mixture and phosgene by a process wherein the amine, preheated to a temperature below its decomposition temperature at superatmospheric pressure is first reacted with preheated phosgene in the presence of an excess of an organic isocyanate at a temperature and pressure such that the reaction proceeds in a homogeneous liquid phase to give substantially organic carbamoyl chloride(s) dissolved in liquid excess phosgene and excess starting organic isocyanate and then, in a second stage, these organic carbamoyl chloride(s) are thermally decomposed at a lower pressure to give the isocyanate corresponding to the starting amine mixed with the added excess starting isocyanate. Preferably, the isocyanate is a monoisocyanate and the amine contains no functional groups other than amino groups capable of reacting with phosgene. In a preferred embodiment the first stage of the reaction is carried out adiabatically with all the reactants fed in at 120‹ to 180‹ C. and the reactant exit temperature kept at 180‹ to 250‹ C. with the applied pressure being kept constant in the range 100 to 300 atmospheres, the second stage being carried out isothermally with all the reactants fed in at 120‹ to 250‹ C. and the applied pressure being kept constant in the range of 3 to 30 atmospheres. The preferred average residence times of the reactants in the first and second stage zones are 5 to 150 sees. and 3 to 30 minutes respectively.
Patent GB-1350303-A (GB)
Title: Photographic materials
IPC: G03C1/33
Filed: 1971-10-13
Abstract: 1350303 Silver halide materials ILFORD Ltd 1 Nov 1972 [13 Oct 1971] 47682/71 Heading G2C An organic solvent soluble thienyl or furyl compound having the formula in which X is O or S is incorporated in at least one of the layers of a light-sensitive photographic material. The compound is preferably incorporated in the photo-sensitive layer e. g. silver halide emulsion layer, and reduces spots due to metal particles e.g. Al, Cr, Fe, Ni and Cu, and to salts and oxides of these metals present in the emulsion.
Patent ID-24566-A (ID)
Inventor: KOJIMA KOICHI
IPC: C07J73/00
Filed: 1998-07-27
Abstract: A compound represented by the below-described formula (I) is an active ingredient of a novel composition having remedial action for alopecia, female hirsutism or seborrhea or having preventive action against bone metastasis caused by prostatic cancer. <CHEM> R<1>, R<2>: hydrogen atom, hydroxyl group, lower alkoxy group.t