baber/WOPTO huggingface dataset:
Patent GB-1133640-A (GB)
Title: Information recording
IPC: G06K1/12
Filed: 1966-09-13
Abstract: 1,133,640. Photochromic data stores. INTERNATIONAL BUSINESS MACHINES CORP. 13 Sept., 1966 [30 Dec., 1965], No. 40763/66. Heading G4C. [Also in Division C4] A reversible photochromic recording medium 4 is sensitive to e.m. radiation of certain wavelengths and intensity in such a way that its light reflecting properties are altered at a plurality of loci lying in equally spaced parallel surfaces within the medium to form a periodic structure having the property of reflecting radiation of a half wavelength equal to an integral function of the spacing of the surfaces in the direction of incidence. The changes are produced by peak energy levels at antinodes of standing waves 5 caused by interference between two beams of monochromatic U.V. light 2, 2<SP>1</SP>. The beams are produced by a wave filter and beam splitter or a laser and are reflected by mirrors 3, 3<SP>1</SP> to the material 4. A plurality of structures may be formed by using several sources and reflecting the respective beams at various angles. Information can be read out and erased by radiation of other wavelengths. The material may be a spiropyran or a glass and a He-Ne laser may provide reading light.
Patent GB-1487243-A (GB)
Title: Method and composition for treating plastic substrates prior to plating
IPC: C23C18/20
Filed: 1974-09-23
Abstract: 1487243 Electroless plating OXY METAL INDUSTRIES CORP 23 Sept 1974 [21 September 1973] 41255/74 Heading C7F A plastics substrate, e.g. polypropylene, phenolic, epoxy, polysulphone, A.B.S., is plated with e.g. Cu, Co or Ni by etching the surface in acid, activating with a Sn-Pd complex, rinsing with water, and then accelerating with a solution comprising hydrochloric, sulphuric or fluoroboric acid, a compound capable of forming fluoride ions, and a salt (chloride) of Ni, Co, Pd, Ru, Rh, Os, Ir or Pt. Fluorides of Na, K, Li, NH 4 , acid fluorides of K, Na or NH 4 , HF or fluorosilicic acid may be used.
Patent GB-1398567-A (GB)
Title: Reed contact unit
IPC: H01H51/28
Filed: 1972-09-07
Abstract: 1398567 Reed contact units INTERNATIONAL STANDARD ELECTRIC CORP 7 Sept 1972 41540/72 Heading H1N The co-operating reeds 4, 5 of a reed contact unit are mounted in an envelope 1 of circular cross-section and have a substantially semi-circular cross-section over the majority of the lengths of the reeds between their contact making ends 6, 7 and the points 2, 3 where the envelope 1 is sealed to the reeds 4, 5. The flat surfaces of the reed face each other at the overlapping contact ends 6, 7 and stamped flat portions 13, 14 of the facilitate bending adjacent the fixed ends.
Patent GB-1222840-A (GB)
Title: End of travel detection device for fluid operated double acting ram
Inventor: GUINOT GABRIEL
IPC: F15B15/28
Filed: 1968-08-30
Abstract: 1,222,840. Shovelling machines. POCLAIN. 30 Aug., 1968 [21 Sept., 1967], No. 41546/68. Heading E1F. [Also in Division F1] An hydraulic or pneumatic ram 1 operating the bucket of an earthworking machine has a piston 7 provided with valves 8 arranged to inter-connect the chambers on opposite sides-, of the piston 7 when at its end of travel position, the resulting pressure drop in the supply line 2 being used to operate a pressure switch 14 and light a lamp 13. To prevent lighting of the lamp 13 when the pressure in the lines 2 is low due to distributor 9 being in the neutral position shown, the electrical circuit to the lamp is broken by contacts 11 a, 11 b operated by an abutment 10 coupled to the distributor 9. A valve 15 ensures that the pressure switch 14 is exposed to the higher of the pressures in the lines 2.
Patent GB-884597-A (GB)
Title: An improved method of providing a sand casting mould with gates
IPC: B22C21/00
Filed: 1958-12-23
Abstract: 884,597. Moulding processes. BAYERISCHE BERG-, HUTTEN-UND SALZWERKE A.G. Dec. 23, 1958 [Jan. 20, 1958], No. 41587/58. Drawings to Specification. Class 83 (1). Sand moulds have prefabricated pouring and riser gates. The gates may be inserted, after removal of the mould from the moulding machine, into tapered apertures formed by pattern portions. Alternatively the gates may be detachably mounted on the pattern so that after moulding they remain in the mould. The gates may be made of a durable material such as fireclay so that they may be re-used.
Patent GB-989446-A (GB)
Title: Process for rendering urea non-caking
IPC: C07C273/02
Filed: 1962-11-02
Abstract: Crystalline urea is rendered non-caking by heating to 118 DEG  to 127 DEG  C. for 1 to 2 hours and then cooling to room temperature, preferably by a continuous process.  In the examples there are described the use of a vacuum oven, an atmospheric oven, a laboratory rotary, fluid-heated evaporator and a large scale apparatus employing direct heating by means of combustion products of a flame.  A test for comparing the non-caking properties is given.
Patent GB-1293329-A (GB)
Title: Pharmaceutical compositions
IPC: A61K31/415
Filed: 1971-09-07
Abstract: 1293329 Capsules containing sodium dantrolene NORWICH PHARMACAL CO 7 Sept 1971 [14 Sept 1970] 41646/71 Heading A5B Pharmaceutical capsules suitable for oral administration contain the muscle relaxant sodium dantralene (the sodium salt of 1 [5-(pnitrophenyl) furfurylideneamino] - hydantoin) 25-100 mg, lactose 126-232 mg, starch 20- 35 mg, talc 10-20 mg and magnesium stearate 5-10 mg. The capsules provide an increase in the physiological availability of the active compound.
Patent GB-1018785-A (GB)
Title: Electromagnetic means for reciprocating a plunger
Inventor: JONES PETER DAVID
IPC: H02K33/10
Filed: 1961-11-22
Abstract: 1,018,785. Reciprocating pumps. JOSEPH LUCAS (INDUSTRIES) Ltd. Nov. 20, 1962 [Nov. 22, 1961], No. 41737/61. Heading F1A. [Also in Division H2] A diaphragm pump is actuated by an electromagnetic motor the coil of which is in circuit with a transistor 14 which together with the coil 11, which may be a tapping on the coil 10, forms a relaxation oscillation; the coil 10 is shunted by a diode 15 which may have a resistor in series. When a silicon transistor is used the base is connected through a resistor to the terminal 13.
Patent GB-1132707-A (GB)
Title: Railway vehicle buff and drawgear
Inventor: LEVIE MAX HUBERT PROPHET ALEXA
IPC: B61G9/22
Filed: 1965-07-23
Abstract: 1,132,707. Railway vehicle buff and draw gear. F. H. LLOYD & CO. Ltd. 23 June, 1966 [23 July, 1965], No. 41983/67. Divided out of 1,132,705. Heading B7T. A bracket 44 on the vehicle frame provides a flat horizontal surface 45 supporting the coupler head, and a convex striker plate 46 is provided.
Patent GB-1163629-A (GB)
Title: Improvements in or relating to Dry Shavers.
Inventor: OTTINA LUIGI
IPC: B26B19/14
Filed: 1967-09-18
Abstract: 1,163,629. Dry shavers. L. OTTINA. 18 Sept., 1967 [23 Sept., 1966], No. 42351/67. Heading B4B. In a motor-driven dry shaver having a perforated guard 154 supported at its periphery on the shaver housing and a rotary cutter 156 having blades urged resiliently against the guard, the cutter is provided with a stationary column 171 extending into juxtaposition with, and forming a support for, the central portion of the guard. The column has mounted thereon a sleeve 175 integral with a drive gear 177, a portion of the sleeve having a non-circular section on which the cutter can be removably fitted. The column 171 is mounted on a plate 165 fixed to the shaver housing, the plate supporting gears 181, 185 for transmitting drive from a motor-driven shaft 157 to the cutter.
Patent GB-1473682-A (GB)
Title: Magnetic recording apparatus
IPC: G11B5/027
Filed: 1974-09-30
Abstract: 1473682 Magnetic tape recording and playback MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 30 Sept 1974 [29 Sept 1973] 42435/74 Heading G5R Parallel longitudinal tracks 12, 15 on a moving magnetic tape are recorded and played back by a stationary audio head 16 and a rotary video head 17, the air gaps 18, 20 of the two heads having different azimuth angles.
Patent GB-1486908-A (GB)
Title: Radiation sensitive transducer for character recognition equipment
IPC: G06V30/148
Filed: 1974-10-01
Abstract: 1486908 Photo-detector array INTERNATIONAL BUSINESS MACHINES CORP 1 Oct 1974 [22 Oct 1973] 42640/74 Heading G1A [Also in Divisions G4 and H1] A transducer comprises a two-dimensional array of radiation sensors arranged as two concentric  segmented rings and an inner circle. Each ring and circle contains at least two sensors, each sensor being a sector of the ring or circle. The transducer may be used in a character recognition system. As described the transducer views the horizontally moving-character via a rotating transmissive hexagonal prism so as to scan the character with a vertical raster. At any instant the transducer provides a signal from each sensor corresponding to the blackness of the area seen by that sensor. The transducer output is clocked to provide a set of signals at each clockpulse, and the sets are converted to binary form by a threshold unit. The unit may comprise a number of circuits, one for each ring or circle of sensors, each circuit comparing the outputs of the sensors in a given ring with a signal proportional to the highest of those outputs. The binary sets pass to a recognition unit. Fig. 4 shows a transducer (only one ring and the circle being shown) viewing part of a numeral 2 and results in certain sensors providing "black" signals as shown by X. As indicated in Fig. 5, during a line scan of the numeral 2 the transducer provides, among other sets, a sequence V4 of binary sets F1- F4. In the scanning of the whole numeral the sequence Hx, consisting of successive sequences V1-V4, is produced. The recognition unit can be designed to respond to such a sequence Hx that is unique to numeral 2. For improved discrimination the sequences V may include binary sets which must not occur between successive sets F, and  sequence Hx sequences which most not occur  between successive sequences V. There may be several Hx pertaining to a given numeral so as to permit recognition of variants of the numeral. To aid separation of adjacent characters the transducer may be flanked by a linear array of sensors Fig. 2c (not shown). The sensors may be silicon semi-conductor photo-diodes separated by grooves formed by mesa etching of the semi-conductor chip.
Patent GB-1519313-A (GB)
Title: Ferritic stainless free-machining steel
IPC: C22C38/28
Filed: 1975-10-17
Abstract: 1519313 Free machining ferritic stainless steel SANDVIK AB 17 Oct 1975 [18 Oct 1974] 42776/75 Heading C7A Free machining ferritic stainless steel of composition: - wherein the Mn, Ti and/or Zr and S and/or Se contents are adjusted to form finely dispersed sulphides and/or selenides of diameter or thickness between 1 and 4 Ám by monotectic or entectic reaction. The steel may be prepared by melting, casting heating to 1200‹C and hot working, re-heating to 920‹C and quenching.
Patent GB-1067196-A (GB)
Title: Fluid flow regulator
IPC: E21B1/26
Filed: 1963-10-30
Abstract: 1,067,196. Regulating fluid flow. R. I. V. ANSTALT ZUR VERWALTUNG VON REAL - und IMMATERIAL VERMOGEN. Oct. 30, 1963 [Oct. 30, 1962; Nov. 28, 1962; March 26, 1963 (2); May 17, 1963], No.42845/63. Heading G3H. A fluid flow regulator has a tangential inlet to a circular section chamber which contains an internal member of circular cross-section and is closed at one end and has a concentric outlet from the other end whereby the resistance to fluid flow increases as, with increasing speed of fluid flow, the fluid medium is forced away from the outlet as a result of centrifugal force. The chamber may comprise a tangential inlet (9) and a concentric outlet (10) opposite a conical (11) or frustro conical insert Figs. 1 and 2 (not shown), or a conical chamber (19) may contain an axially adjustable conical insert member (22) Fig. 3 (not shown). Fluid may also pass to the outlet around channels formed by a pair of spaced concentric cylinders, via spaced tangential passages through the walls thereof Fig. 4 (not shown) and, with contacting cylinders (36) and (37) Figs. 5 and 6 (not shown) the smaller (37) may project through the chamber wall (38) with the fluid resistance adjustable upon the rotation thereof to vary the cross section of the passages between the cylinders. In further embodiments, fluid flow resistance may be raised by screwing a hollow cylinder Fig. 7 (not shown) through the outlet to project down into the chamber interior, or by the adjustment of a hollow screw (55) with radial openings therefrom Fig. 8 (not shown); alternatively, the surface of the screw may be longitudinally grooved Fig. 9 (not shown) or the outlet may comprise a cylindrical extension of the end wall with the cross-section of longitudinal slots at the extremity thereof adjusted by a screwed-on cap Fig. 10 (not shown).
Patent GB-975528-A (GB)
Title: Improvements in and relating to liquid conveying pipes
Inventor: MCWILLIAMS JOHN JOSEPH
IPC: F16L1/12
Filed: 1961-11-30
Abstract: 975,528. Supporting pipes. NORTH BRITISH RUBBER CO. Ltd. Nov. 30, 1962 [Nov. 30, 1961], No. 42939/61. Heading F2P. An air pipe 15 associated with a liquid-conveying pipe 10, for floating or submerging the latter as desired, has independent compartments or sections 16, 17, 18 with valves controlling the flow of air to and from each compartment to effect the raising or lowering of the pipe 10. The pipe 10 is attached to the pipe 15 by belts, chains or wire ropes 14, or the air pipe 15 may be concentrically arranged around the liquid (e.g. oil) pipe 10. In the latter case there are apertured discs of, e.g. epoxy resin, between the flanges 12 and extending beyond their peripheries, over which fabric is extended to form compartments. A hose 21 in the pipe 15 carries air pressure and discharge lines 20 communicating with each pipe section 16, 17, 18. Each air line 20 has an electrically activated, pressure operated on/off valve 24 with an associated manual override valve 33 and the flow of air through all the lines 20 is controlled by master stop valves 23, 31 associated with a low-pressure regulating valve 22 and high pressure regulating valve 32. To raise the pipes 10 and 15 from the sea bed, the high pressure regulator 32 is set to a required pressure, e.g. 40-45 1b. per sq. in. and air flows to the master stop-valve 31, the actuation of which sends air under pressure to the on/off valves 24. These valves are actuated simultaneously or sequentially with the result that air flows to compartments 16, 17, 18 in the air pipe 15 which, carrying with it the oil pipe 10, rises to the surface. When the pipes have reached the surface the valve 31 is closed and the low pressure regulator 22 is set to a pressure of e.g. 10-15 1bs. per sq. in. The master stop-valve 23 is actuated and air flows out through the pressure relief valve 29 till the pressure is at the value required to keep the pipes 10, 15 floating. When the oil carrying is done the valves 22, 23, 24 are all closed and a master stop-valve 28 on the vacuum side is opened. Discharge on/off valves 27 in the discharge lines 26 are then actuated sequentially and the pipes 10 and 15 sink to the sea bed.
Patent GB-986200-A (GB)
Title: Stabilization of ester group-containing synthetic resins
IPC: C11B5/00
Filed: 1961-12-01
Abstract: A process for stabilizing ester group-containing synthetic resins comprises incorporating in the synthetic resin at any convenient stage in its production or in the finished resin, a polycarbodiimide having a molecular weight of at least about 500 and having more than 3 carbodiimide groups.  Specified synthetic resins are those derived by reacting a polyfunctional carboxylic acid with a polyfunctional alcohol, if desired with the concurrent use of a monofunctional acid or alcohol, polyesteramides, polyesterurethanes, synthetic resins derived from naturally occurring esters, polyesters containing styrene residues and unsaturated polyesters, many suitable reactants for making the polymers being listed.  Specified carbodiimides are those derived from isocyanates. The examples disclose compositions comprising:-(1) a polyester polyurethane made from ethylene and propylene glycol, adipic acid, 4-41-diphenyl methane diisocyanate and butane diol, carbon black, stearic acid, t-butyl cumyl peroxide, triallyl cyanurate and triisopropyl benzene polycarbodiimides; (2) a maleic anhydride/propylene glycol alkyd and a polycarbodiimide made from 2:4:6-triethylphenylene-1:3-diisocyanate; (3) an ethylene/vinyl acetate copolymer, stearic acid, silicic acid, dicumyl peroxide and 1:3:5-triisopropylbenzene polycarbodiimide; (4) a polyurethane made from adipic acid, ethylene glycol, monoethanolamine and hexamethylene diisocyanate, furnace black, hexamethylol melamine, chloronaphthol and triisopropyl benzene polycarbodiimide; (5) a polyester polyurethane made from adipic acid, ethylene and propylene glycol, 4:41-diphenyl methane diisocyanate and glycerol monoallyl ether, stearic acid, pyrogenic silicic acid, cadmium stearate, sulphur, 2-mercapto benzothiazole, an addition product of mercaptobenzothiazyl disulphide and stannous chloride and triisopropyl benzene polycarbodiimide; (6) a polyester polyurethane made from diethylene and butylene glycol, adipic acid and 2:4- and 2:6-toluylene diisocyanate, stearic acid, carbon black, dimerized 2:4-toluylene diisocyanate and 1:3:5-triisopropyl benzene polycarbodiimide; (7) polyacrylic acid methyl ester, stearic acid, carbon black, dicumyl peroxide, triallylcyanurate and 1-methyl-3:5-diethyl benzene polycarbodiimide and (8) polyvinyl acetate and a polycarbodiimide made from 3:5:31:51-tetraisopropyl diphenyl methane-4:4-diisocyanate. Specifications 851,936 and 930,036 are referred to.
Patent GB-1058562-A (GB)
Title: Electron paramagnetic resonance spectrometer for nuclear reactors
Inventor: GALLAND DANIEL
IPC: G01N24/10
Filed: 1964-10-22
Abstract: 1,058,562. Reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 22, 1964 [Oct. 22, 1963], No. 43119/64. Heading G6C. [Also in Division G1] Apparatus for studying solids being irradiated within a nuclear reactor by electron paramagnetic spectrometry comprises a resonant cavity (17), Fig. 3 (not shown), for receiving the specimen housed within a solenoid (1) mounted on a support member extending from a plug (5) designed for insertion in the end of a tangential channel of the reactor, a waveguide for conveying energy to the cavity, and a cooling loop for the solenoid passing through the plug and the support. The coil which is of anodized aluminium wire includes two additional coils for compensating for 1st and 2nd order heterogeneities and is enclosed in an aluminium cooling shroud through which copper leads in stainless steel sleeves pass. The plug is in two parts, one of a heavy concrete (barium oxide) (5b) and the other of lead shot (5d). The waveguide, which includes a shut off plate valve to prevent leakage, is offset in its passage through the plug to trap nuclear radiation from the core and the plug incorporates thermocouples whereby the temperature is monitored as a safety precaution. Coupling between the waveguide and the cavity, which is of silver lined aluminium and resonates in the T102 mode, may be effected by a vane (16) which is movable across a coupling orifice by compressed air, the installation including supplies of air for cooling the wave guide and emptying the cooling system, and nitrogen for maintaining a neutral atmosphere in a drainage reservoir. Provision may also be made for flushing radiation impurities from the coil with benzene. A regulated and adjustable power supply is provided for the test equipment, the regulator being responsive to slow current variations and rapid voltage variations. Separate supplies are provided to the auxiliary windings on the solenoid, and an oscillator is connected to the solenoid regulator to provide field sweep. The test frequency 10À000 m/cs. is provided by a klystron (92), Fig. 7 (not shown), and applied to a magic T100 through a coupler (97), an attenuator (98) and isolators (95), (99). A wavemeter (96) is coupled to the supply line. The output from the magic T is coupled to a symmetrical crystal detector (105). The klystron is locked to the cavity frequency by modulating the klystron frequency with the 350 kc/s. output from an oscillator (113), the feedback loop including an amplifier (114), and a discriminator (115). The test results are recorded at (119). Safety and protection arrangements described include stand-by plant, i.e. reserve pumps and a beam trap block which can be pushed in front of the channel opening. The cooling apparatus is described with reference to Fig. 5 (not shown).
Patent GB-996262-A (GB)
Title: Improvements in sheepsfoot rollers
Inventor: DIGBY WILLIAM EDWARD
IPC: E02D3/026
Filed: 1961-12-01
Abstract: 996,262. Rollers. STOHERT & PITT Ltd. Nov. 29, 1962 [Dec. 1, 1961], No. 43143/61. Heading A1B. A sheeps foot for a sheeps foot roller is hollower and has a flat end surface 3, a straight side 2 radial to the shell 4 of the roller and a convexly curved side 1 the centre of curvature of which lies on or near the intersection of the side 2 with the shell. The end surface 3 is preferably circular. The sheeps feet are welded to the shell of the roller which is perferably a vibrating roller, in circumferential rows the members of one row being staggered relative to those of adjacent rows so that in alternate the rows the sheeps feet are axially aligned.
Patent GB-1479816-A (GB)
Title: Tattletale annunciator and shut-down control for compressors or like equipment
IPC: F01B25/16
Filed: 1975-10-21
Abstract: 1479816 Fluid-pressure servomotor systems FRANK W MURPHY MFR INC 21 Oct 1975 [16 Dec 1974] 43181/75 Heading G3P A machine 32, such as an engine or compressor, is provided with sensors 29, 30, 31, for example for pressure, temperature and liquid level, to connect a corresponding part in a cylinder 14 to atmosphere if a malfunction occurs so that a differential piston 17, subjected to pressure from a source 10, descends to the position of the vented port to indicate the nature of the malfunction on a panel 41 and to operate a valve 16 which shuts down the machine by closing a main fuel or gas supply valve 35. The supply to the cylinder 14 may be controlled by a push-button operated valve (53) Fig. 6 (not shown) held open through a holding circuit (55). An adjustable screw on the rod 21 of the piston 17 operates an actuator 47 on the valve 16. The panel 41 carries printed strips and is held in place in a body portion (45) Fig. 5 (not shown) by a detachable window (50).
Patent GB-1045718-A (GB)
Title: Method of preparing amino alkyl sulfates
Inventor: SCHNEID ALFRED FREDERICK
Filed: 1963-11-04
Abstract: b -Aminoalkyl sulphates are obtained by reacting a b -aminoalkanol in an inert solvent that forms an azeotrope with water with an equimolar amount of sulphuric acid in the presence of a small amount of a cationic surface-active agent.  Specified amino alkanols are ethanolamine, isopropanolamine, 2-aminobutanol - 1, 2 - amino - 2 - methylpropanol - 1, N - ethylethanolamine, N - methylethanolamine and 3-amino-3-methylbutanol-2; specified solvents are toluene and xylene. After the reaction the water is preferably removed by azeotropic distillation.
Patent GB-1095177-A (GB)
Title: Improvements in or relating to tunnelling arrangements
Inventor: LASKOV NIKOLAI MINTSHEV
IPC: E21D3/00
Filed: 1965-10-14
Abstract: 1,095,177. Tunnelling equipment. MASHINOSTROITELEN ZAVOD PERNIK. Oct. 14, 1965 [Oct. 19, 1964], No. 43682/65. Heading E1F. In raise driving a man and drill-carrying cage can be winched up and down cables secured at the top of the raise and when at the top of the raise can be secured in the raise whilst the cables can be released from anchoring points and advanced through the cage for securing to new anchorage points ahead of the old anchorage points to allow for the next cycle of raise driving operations to 'be commenced.