baber/WOPTO huggingface dataset:
Patent GB-1331186-A (GB)
Title: Pilot burner for gas appliances
IPC: F23D/
Filed: 1971-11-19
Abstract: 1331186 Pilot burner SAGARDUI SA 19 Nov 1971 [22 April 1971] 53846/71 Heading F4F A pilot burner for a gas appliance comprises a tube which is supplied with gas at its lower end 1 and with air through holes 2 and is divided at its upper end into two arms 5 each having a flame outlet opening, an ignition electrode 7 mounted on a lug projecting from the tube and connected by a terminal 9 to a piezo-electric ignition device which electrode defines with a projection 6 a spark gap and the projection 6 also serves to deflect gas into the spark gap. A flame sensing device can be mounted on the same lug as the electrode or on another lug 4. A further mounting projection 3 can carry a thermocouple whose tip is disposed so as to detect a lack of oxygen in the flame and thereupon close a solenoid-actuated valve in the gas supply line.
Patent GB-1326958-A (GB)
Title: Regeneration of sulphuric acid pickling waste
IPC: C01G49/14
Filed: 1970-11-12
Abstract: 1326958 Regenerating sulphuric acid pickling waste DAIDO CHEMICAL ENG CORP 12 Nov 1970 [30 Dec 1969] 53972/70 Heading BID Sulphuric acid pickling waste from reservoir 15 is regenerated by mixing it in tank 8 with circulating sulphuric acid from line 14 which has a free H 2 SO 4  concentration of 40-55% by weight, concentrating the resultant liquid mixture using heater 3 and vacuum evaporation chamber 2 to obtain sulphuric acid of a concentration of 40 to 55% by weight and ferrous sulphate monohydrate crystals dispersed therein in a slurry concentration of 10-30% by weight, and separating the crystals from the sulphuric acid using settling tank 10 and vacuum filter 22. The sulphuric acid may then be passed via vacuum filtrate tank 26 to crystal growing tank 24 and left to stand for 10-30 hrs. Crystals can be returned via line 32. Condenser 34 is connected to a vacuum pump. The process causes large crystals of ferrous sulphate to be formed to improve separation during filtration.
Patent GB-1142699-A (GB)
Title: 1-hydroxymethyl-3-oxo-2-oxa-steroids and process for their manufacture
IPC: C07J73/00
Filed: 1966-12-05
Abstract: 1,142,699. 2-Oxa-steroids. CIBA Ltd. 5 Dec., 1966 [6 Dec., 1965], No. 54337/66. Headings C2C and C2U. Novel 1 - hydroxymethyl - 3 - oxo - 2 - oxasteroids, their esters and their ethers are prepared by ultra-violet irradiation of 3-oxo-2-OR- 1 - hydroxy - steroids (where R is H or C 1-7  aliphatic acyl) and, if desired, hydrolysis of any ether or ester groups in the product or etherification, esterification or oxidation of any free OH groups. The preparation of 1-hydroxymethyl - 3 - oxo - 17# - acetoxy - 5α and 5#-2- oxo-androstanes by the above process and the acetylation of the 5α compound is described. 3 - Oxo - 2 - OR - 1 - hydroxy - steroids are prepared by treating 3-oxo-4,5-oxido-steroids with a strong acid to give 2α-hydroxy-3-oxo-#<SP>4</SP>-steroids, hydrogenating these to 2-hydroxy-3-oxo-5#- steroids, converting these to the 2-mesylates, irradiating these to give #<SP>1</SP>-3-oxo-steroids and hydroxylating these, and if desired, acylating. The 1 - hydroxymethyl - 3 - oxo - 2 - oxasteroids of the androstane series and their ethers and esters are stated to have anti-androgenic and anti-estrogenic properties, and to inhibit the hypophysis, and they may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1418003-A (GB)
Title: Fasteners
IPC: F16L3/127
Filed: 1972-11-27
Abstract: 1418003 Releasable fastenings A J NIEWVELD & J E L WOLTENS [trading as CLIPCO IO BV] 27 Nov 1972 [26 Nov 1971 24 March 1972] 54794/72 Heading E2B A plastics fastener comprises a clip 20, Fig. 1, or a clamping band 23, Fig. 2, secured at a hole in a support by barbed limbs 22, 25. In the form shown in Fig. 4, a weak part 9 facilitates breaking off when used on an apertured panel, Fig. 8.
Patent GB-1474049-A (GB)
Title: Arrangement for the modulation of light
IPC: G01P3/36
Filed: 1974-12-19
Abstract: 1474049 Measuring displacement photoelectrically WETZLAR GmbH 19 Dec 1974 [12 Jan 1974 1 July 1974] 54879/74 Heading G1A Apparatus responsive to motion or displacement of an object for modulating light comprises: a plurality of diffracting means so disposed to act on light from a source that the light is subjected to at least three successive diffraction processes; the first process causing light to diverge from a point on the first diffracting means; the penultimate process causing the diffracted rays to converge towards the region of the last diffracting means; the last diffracting means directing the light components in the same direction and in the same phase. Divergent rays 10'(-2) and 10'(+2), Fig. 1 diffracted from a point on a first grating 11 strike a second grating 12, from which parts of the respective rays, diffracted as rays 10"(+4) and 10"(-4), recombine at a point on a third grating 13, whence components of the converging rays are further diffracted in at least one common (zero-order) direction. The ratio between the spacings n, m between adjacent gratings is a function of the relative grating constants of the first two gratings 11, 12. The blaze-angles of the gratings are chosen to favour the respective orders of the diffractions which they are intended to perform. By the use of an extended source 14 Fig la the light emerging from the grating 13 can be made to form an interference pattern in detectors a-d placed at the focal plane 17 of a lens 16, the detectors supplying phase-related signals indicative of the magnitude and sense of any displacement of the grating 12 in the plane of the diffracted rays and transverse to the optical axis. Four stages of diffraction may be provided by four gratings Fig. 2 (not shown), or by two gratings, one of which is arranged on the hypotenuse face of a reflex prism Fig. 3 (not shown). Three diffractions Fig. 4 (not shown) may be provided by a wheel having concentric inner transmissive and outer reflective gratings, in co-operation with reflex mirrors. Gratings of different spacings and correspondingly different grating constants may be effectively provided by a transmissive grating 11 Fig. 8 and a reflective grating 12 tilted relative to the grating 11 so that the return light path is of a different length from the outward path. A spaced-phase modulation pattern may be provided by causing convergent rays, Fig. 7 to strike the last grating 13 at two points, the recombined light due to different diffraction orders forming a pattern at an image plane 14. A displaceable diffracting element may comprise a grating, a standing or travelling acoustic wave, a light-scattering surface, or a beam-splitting polarizing device.
Patent GB-1208583-A (GB)
Title: Process for the preparation of dithiolanes
IPC: C07D277/36
Filed: 1967-12-04
Abstract: 1,208,583. 2 - Imino -1,3 - dithiolanes. SOC. NATIONALE DES PETROLES D'AQUITAINE. 4 Dec., 1967 [5 Dec., 1966; 6 Dec., 1966], No. 54990/67. Heading C2C. 2-Imino-1,3-dithiolanes of the formula wherein R represents an alkyl, aryl, cycloalkyl or aralkyl radical, are prepared by heating ethylene monothiocarbonate with an isothiocyanate RNCS or a thiourea RNH.CS.NHR<SP>1</SP> at 120-250‹ C., R<SP>1</SP> being the same as R or hydrogen. The reaction, particularly that using the isothiocyanate, may be effected in the presence of catalyst, e.g. an alkali metal salt or an organic base. The reaction generally proceeds with formation of by-product thiazolidine thiones of the formula and iminothiazolidines of the formula which can be separated from the required dithiolane by distillation, crystallization or chromatographic methods. Examples describe the preparation of 2-phenylimino-dithiolane, 3- phenyl - 2 - phenylimino - thiazolidine and 3- phenyl-thiazolidine-2-thione being isolated as by-products.
Patent GB-1081050-A (GB)
Title: Self-threading take-up reel
IPC: B65H75/28
Filed: 1965-12-30
Abstract: 1,081,050. Tape reels. COLUMBIA BROADCASTING SYSTEM Inc. Dec. 30, 1965 [Jan. 14, 1965], No. 55251/65. Heading B8M. [Also in Divisions G2 and G5] A flanged self-threading film take-up spool has a member mounted in the space between the flanges for capturing the leading end of the film, the member extending outwardly from the hub of the spool and having a part movable between a position in the space between the flanges and a second position outside this space. As shown, a leader 16 is directed into a take-up spool 34 where a notch (70, Fig. 3) in the leader is engaged by a member 56 which, as the spool rotates, draws the leader into engagement with the hub 36. A second such member (54, Fig. 1) engages a second notch (72, Fig. 3) and the first member 56 engages a third notch (74) during the second revolution of the spool. Thereafter the leader, having no further notches, rotates the two members about pivots 58 through slots 46 (and 48) in the flange 38 to an outer position, pushing spring-biased pins 68 outwards to trip a latch and disengage the drive.
Patent GB-1201825-A (GB)
Title: Substituted 1,2-dihydro-1,3,5-triazines, the preparation thereof and compositions containing the same
Inventor: MAMALIS PATRICK
IPC: A61K31/53
Filed: 1967-12-06
Abstract: 1,201,825. 1 - Aralkoxy - 1,2 - dihydro - 4,6 - diamino-1,3,5-triazines. VITAMINS Ltd. 29 Nov., 1968 [6 Dec., 1967], No. 55414/67. Heading C2C. [Also in Division A5] 1 - Aralkoxy - 1,2 - dihydro - 4,6 - diamino - 1,3,5 - triazines of the general formula wherein Ar is a mono-, di- or poly-nuclear aromatic ring system; X, Y and Z are each a hydrogen or halogen atom; R 1  is a C 1-4  alkyl group; and R 2  is a hydrogen atom or a C 1-4  alkyl group; or R 1  and R 2  may be linked together to form, with the carbon atom of the triazine ring to which they are attached, a C 5-7  spiro-cycloalkane or C 1-4  alkyl-C 5-7  spirocycloalkane group, and acid addition salts thereof are prepared (a) by reaction of an aralkoxy-di-guanide of the general formula with a carbonyl compound of the general formula R 1 COR 2 , in the presence of an acid, or (b) by reaction of a 1-hydroxy-1,2-dihydro-4,6- diamino-1,3,5-triazine of the general formula wherein Y 1  is a hydroxyl group or a reactive derivative thereof, with an aralkanol of the general formula wherein Y 2  is a hydroxyl group or a reactive derivative thereof; followed optionally by salification. 1 - Aralkoxy - 1,2 - dihydro - 4,6 - diamino - 1,3,5 - triazines of the first general formula above wherein Ar is a phenyl or naphthyl group; X and Y are both halogn atoms, Z is a hydrogen or halogen atom; R 1  is a C 1-4  alkyl group; R 2  is a hydrogen atom or a C 1-4  alkyl group; or R 1  and R 2  are linked together to form, with the carbon atom of the triazine ring to which they are attached, a C 5-7 , spiro-cycloalkane or C 1-4  alkyl-C 5-7  spiro-cycloalkane group; and acid addition salts thereof, provided that XYZAr is not 3,4-dichlorophenyl and provided also that XYZAr is not 2,4-dichlorophenyl, or 3,5-dichlorophenyl when R 1  and R 2  are both methyl, are novel compounds. 4,6-Diamino-1,2-dihydro- 2,2-dimethyl - 1 - (3 - chlorobenzyloxy) - 1,3,5- triazine and acid addition salts thereof are also novel. 2,4,5 - Trichlorobenzyloxy - diguanide is prepared by reaction of 2,4,5-trichlorobenzyl bromide with benzhydroxamic acid in the presence of sodium hydroxide, reaction of the resulting 2,4,5 - trichlorobenzyl benzhydroxamate with concentrated hydrochloric acid and treatment of the 2,4;5-trichlorobenzyloxyamine hydrochloride thus produced with dicyandiamide. Reference has been directed by the Comptroller to Specification 945,159.
Patent GB-1282135-A (GB)
Title: Semiconductor device and a method of manufacturing the same
Inventor: TSUTSUMI TADASHI
IPC: H01L21/28
Filed: 1969-11-13
Abstract: 1282135 Semi-conductor devices TOKYO SHIBAURA ELECTRIC CO Ltd 13 Nov 1969 [13 Nov 1968 21 Oct 1969] 55546/69 Heading H1K A semi-conductor device includes a semiconductor substrate having on one surface an insulating film comprising one or more of Y 2 O 3 , Sc 2 O 3 , Eu 2 O 3 , Sm 2 O 3 , Tb 2 O 3  and Dy 2 O 3 . Multiple layer films including layers of various of these oxides are also described in the Specification, and additional layers of SiO 2  and Si 3 N 4  may also be provided. Sputtering, vapour deposition, conventially or using an electron beam, anodic oxidation, high temperature oxidation and plasma deposition are referred to as methods for forming the insulating film, and a heat treatment may also be applied after formation of the film in order to modify the properties of the device. The insulating film may be used for diode or transistor surface passivation, as well as for masking purposes during planar device manufacture. It may also comprise the gate insulation of an IGFET or the insulating layer of an MIS capacitor. Semiconductor materials mentioned in the Specification are Si, Ge, GaAs and GaP. Prior art devices involving only SiO 2  or Si 3 N 4  as insulation are also referred to.
Patent GB-1254290-A (GB)
Title: Energy conversion system
IPC: H01M50/77
Filed: 1968-11-26
Abstract: 1,254,290. Screw centrifuge. GULF GENERAL ATOMIC Inc. 26 Nov., 1968 [4 Dec., 1967], No. 55988/68. Heading B2P. [Also in Division H1] A screw centrifuge 19 comprises a rapidly rotating frustoconical bowl. 37 and a more slowly rotating spiral scroll blade 24 which carries solid particles from the suspension entering via tube 21 down to discharge ports 64 whilst purified liquid discharges at the upper ports 49. The differential speeds of rotation are maintained by toothed driving belts 76, 77 driven by matching sheaves 71, 72 on the shaft of motor 74 and driving the scroll and bowl via sheaves 66, 68 on coaxial shafts 28, 52.
Patent GB-1349860-A (GB)
Title: Manufacture of shaped piezoelectric articles
IPC: H01L41/45
Filed: 1971-12-02
Abstract: 1349860 Piezoelectric films KUREHA KAGAKU KOGYO KK 2 Dec 1971 [2 Dec 1970] 56093/71 Heading B5B [Also in Division H1] Piezoelectric elements or shaped structures are made by subjecting an element or shaped structure, especially a film, formed of a copolymer of 99 to 50% by weight of vinylidene fluoride and 1 to 50% by weight of a copolymerizable ethylenically unsaturated monomer, to a treatment at a temperature between 40 and 200 C. in a D.C. electric field having a potential gradient from 30 kv./cm. to 1500 kv./cm. for a period sufficient to allow dielectric polarization of the copolymer. Preferably, the treatment temperature is between 40 C. and the melting point of the copolymer, at a potential gradient of from 100 kv./cm. to 1500 kv./cm., for a period of at least two hours. Specified comonomers include tetrafluoroethylene, trifluoroethylene, trifluoromonochloroethylene, vinyl fluoride and hexafluoropropylene. The element or shaped structure may be a mono- or biaxially stretched film, or may be a coated film on a substrate, or a sheet, block or rod. In Example 1, a vinylidene fluriride-tetr fluoroethylene copolymer powder is moulded at 200 C. in a press to form a film which is polarized by treatment between stainless steel electrodes. Example 2 is similar, but the film is stretched before the electrical treatment. In Example 10, the copolymer is dissolved in acetone and the solution cast on an aluminium plate to form a coating of 10 microns thickness. After drying, gold is deposited thereon by vacuum-metallization. Figure 2 shows an apparatus for measuring the voltage generated on applying pressure to the piezoelectric film. The film is interposed between a pair of 1 cm. square electrodes 2, and a weight 3 of 1 kg. is applied. The voltage generated is determined by means of oscillograph 5 through a circuit 4 having a field effect transistor. As the degree of dielectric polarization in the film varies, depending on the stress imposed thereon the film can be formed into a pressuresensitive element to obtain a signal corresponding to a stress.
Patent GB-1240080-A (GB)
Title: Talking clock
IPC: G09B19/12
Filed: 1969-11-18
Abstract: 1,240,080. Talking clock. MATTEL Inc. 18 Nov., 1969 [25 Feb., 1969], No. 56290/69. Heading G5R. In a toy talking clock, each clock hand is coupled to a separate gramophone pick-up arm and when moved moves the associated pick-up arm into a record groove in which the time indicated by the hand is recorded. The record is formed with 24 grooves, twelve being associated with the " hour " pick-up arm and each having their " hour " information recorded in the first two-thirds thereof and the other twelve being associated with the " minute " pick-up with their recorded information in the last third of each groove. The time is set by a control 20 which acts directly on the minute hand and via a gear train, including gears 114, 116, on the hour hand. Cams 102, 120 are secured respectively to the minute and hour hands and cam followers 104, 122 assoicated respectively with pick-up arms 34 and 42 are urged by springs 106, 124 into contact with the cams and move the pickup arm needles 36, 44 to the required record grooves. The time is played back by operating control 22 which via a cam 54 moves an operating member 56 about a pivot 58. The member closes a switch 66, 68 and is locked in that position. The switch energizes a turntable drive motor 48 from battery 50 and as the record rotates a lift arm cam 76 on the turntable moves out of engagement with lift arm 78, whereby two end portions 80, 82 of the arm disengage from speaker pistons 38, 39 and allow these to engage the pick-up arms. During the first two-thirds revolution of the record play back mechanism 50 including speaker 46 plays back the hour information and during the last one-third the mechanism 32 plays back via speaker 40 the minute information. After one revolution a stopping cam 86 on the turntable engages on the operating member and restores it to its initial position in which the motor is switched off and an indented portion 94 of the operating member engages an abutment on the turntable.
Patent GB-1333720-A (GB)
Title: Method of mannufacturing shock-absorbent material
IPC: B29C53/24
Filed: 1970-11-30
Abstract: 1333720 Sheet forming KIMBERLY-CLARK CORP 30 Nov 1970 [28 Nov 1969] 56797/70 Addition to 1268571 Heading B5A An improvement in or modification of the method claimed in claim 1 of Specification 1,268,571, comprises continuously extruding a molten curtain of thermoplastic material, e.g. a film forming organic polymer, from a nozzle 108 on to a moving mould belt 100 having geometrically cross-sectioned apertures 110, forcing the material into the apertures by vacuum from a box 118 through openings 116 as the belt passes thereover to produce a packaging material having cells of the shape of the apertures, including substantially vertical walls, cooling the material in a cooler 120, and removing the solidified material on to a drum 122. The nozzle 108 is supported above a catch basin 130 mounted on rails 136, 138. The belt may be supported on a grid 114.
Patent GB-1179618-A (GB)
Title: Blend Control Device
IPC: G05D11/00
Filed: 1967-12-15
Abstract: 1,179,618. Dispensing fluids. VEEDER INDUSTRIES Inc. 15 Dec., 1967 [28 Dec., 1966], No. 57073/67. Heading A4T. [Also in Division B1] In an apparatus in which two fluids (e.g. grades of petrol) are mixed in a predetermined ratio by a proportioning valve controlled by a meter in each flow line through a device which adjusts the valve in a pre-determined flow ratio, there is a compensating device which initially moves the valve past the position providing the pre-determined ratio in order to compensate automatically for the time taken by the valve to reach the adjusted position. The outputs of meters 20, 22 (Fig. 1) are summed by differential 28 and transmitted to subtracting differential 16, a speedchange mechanism 32 reducing the speed of shaft 33 so that it will rotate at the same speed on the subtracting differential input shaft 26 when the flow rates are in the desired ratio, maintaining the blend control shaft 18 stationary. The output of summing differential 28 is also applied to a variator 34 and register 36 to compute and register the cost of the blend dispensed. If a blend different from that of the previous delivery be selected, the shaft 18 will rotate (see Fig. 2) actuating valve operating shaft 56 through bevel gear 42 and carrier ring 52 of differential gear 44. Shaft 18 also causes, through worm 72, axial displacement of rack 74 to move along splined shaft 90 a friction wheel 88 which is in peripheral contact with friction disc 96, the latter being driven e.g. by a constant speed motor or by the output shaft 30 of the summing differential 28. A supplementary input to the valve actuating shaft 56 proportional to the angular displacement of shaft 18 is thus given by shaft 90 through the gear train 98, 100, 102, 106, 52, 54. Valve 14 is therefore moved past its adjusted position. As this occurs, subtracting differential 16 will rotate blend control shaft 18 in the opposite angular direction returning wheel 88 to the centre of disc 96 where it ceases to rotate so that the supplementary input to shaft 56 is reduced to zero. By suitable dimensioning of the mechanical elements the supplementary input may be arranged to compensate, without hunting, for the incorrect blend initially supplied due to the time-lag in the valve reaching the adjusted position (see Fig. 3, not shown).
Patent GB-1244964-A (GB)
Title: Improvements in or relating to adhesive compositions
Inventor: ALLEN CHRISTOPHER MACLAREN
IPC: C08G18/10
Filed: 1967-12-16
Abstract: 1,244,964. Boots &c. BOSTIK Ltd. 16 Dec., 1968 [16 Dec., 1967], No. 57252/67. Heading A3B. [Also in Division C3] A shoe sole of plasticised polyvinyl chloride may be bonded to a shoe bottom with an adhesive composition which is formed by mixing p-nitrophenol, a polyisocyanate and a substantially linear polyurethane in an inert solvent, the amount of polyisocyanate being in excess of that which would provide just sufficient NCO groups available for reaction with active hydrogen containing groups of the polyurethane, and the amount of p-nitrophenol being such as to provide 1 to 8% by weight of that part of the composition which is not solvent. In specific Examples, the adhesive compositions are prepared by mixing a polyisocyanate derived from I, 6-hexane diisocyanate, water or glycerol in solution in equal parts of ethylene glycol acetate and xylene, with part of a solvent mixture of methyl ethyl ketone and toluene, dissolving a commercial thermoplastic polyesterurethane in the solution, adding the p-nitrophenol and then adding the remainder of the solvent to adjust the viscosity of the composition. The adhesive composition may be applied to the shoe bottom so as to provide a dry film thereon, and subsequently a molten polyvinyl chloride composition may be injected at a temperature of 170‹C into a sole-shaped mould cavity defined in part by the shoe bottom and in part by a mould so as to fill the mould and so mould and attach a sole to the shoe bottom.
Patent GB-1142082-A (GB)
Title: Folding table
IPC: A47B23/04
Filed: 1966-12-22
Abstract: 1,142,082. Tables. L. JOUK. 22 Dec., 1966 [12 May, 1966], No. 57520/66. Heading A4H. A folding table comprises a frame formed by a horizontal beam A integral with an upright telescopic member B1, a table top which may be turned into the plane of the frame and four feet a, b, c. d articulated to the horizontal beam A. The frame may have two uprights (B1, B2, Fig. 3). Each foot has a socket g pivoted on an axle e integral with the beam A. Resilient rings j push the socket against a cross pin i on the end of pivot axle e, the pin being disposed in two cross grooves h of V section in the socket to determine the folded and in-use positions of the feet. To prevent the pivot axles of the feet from bending under load an apertured plate (k, Figs. 5-9) joins the ends of the axles of each pair of feet. A single cross pin (i) traverses the two axles and is located in a groove (m) in the plate (k).