baber/WOPTO huggingface dataset:
Patent GB-847968-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H3/60
Filed: 1957-12-06
Abstract: 847,968. Fluid-blast switches. WESTING- HOUSE ELECTRIC CORPORATION. Dec. 6, 1957 [Dec. 20, 1956], No. 38005/57. Class 38 (5). [Also in Group XXXVI] A fluid-blast switch comprises a relatively stationary contact 29 disposed at one end of an insulating casing 4, a movable cylinder 45 carrying an orifice member 88 and a movable contact 43 which co-operates with the contact 29, and a mechanism to move the cylinder relatively to a piston 83 to force fluid from within the cylinder through the orifice member to extinguish the arc drawn between the contacts. In the Figure, the cylinder 45 has a pair of lugs 46 to which are connected insulating operating rods 48, and carries a pair of contact rails 54 (one shown). Contact rollers 72 interposed between the rails 54 and fixed conducting rails 62 provide a good electrical connection between the moving contact assembly and a fixed terminal member 57, and guide the movement of the assembly. The piston 83 is carried by a " shock absorber " 85 which initially offers considerable resistance to any motion of the piston 83 so that the piston is able to force fluid from the cylinder to extinguish the arc. Subsequently movement of the piston by the cylinder is permitted so as to increase the gap between the contacts. Limited movement of the stationary contact 29 is permitted under the bias of a spring 42 which maintains adequate contact pressure when the contacts are closed. Rods 77 and compression springs 80 maintain the casing 4 in compression to counteract the effect of internal pressure under arcing conditions. The casing may be sealed and contain sulphur hexafluoride gas, the orifice member 88 being of polytetrafluoroethylene. The switeh may be used as an isolator in series with a pair of impedance-shunted arc-extinguishing units, Fig. 7 (not shown). Reference has been directed by the Comptroller to Specification 736,090.
Patent GB-931773-A (GB)
Title: Improvements relating to electronic computer equipment
Inventor: CONNETT JACK
IPC: G06F13/26
Filed: 1958-11-26
Abstract: 931,773. Electronic computers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 25, 1959 [Nov. 26, 1958], No. 38189/58. Class 106 (1). The sequential execution of computer programme steps is interrupted when a peripheral unit is ready to send data to, or receive it from, the computer, the particular peripheral unit being searched for over a number of search highways by signals which successively eliminate half of the remaining units. Fig. 2 shows an arrangement having seven peripheral units (although eight would be possible with the three pairs of search highways shown) each connected to one of each of the pairs a, b; c, d; and e, f. The computer commences search procedure on receipt of a pulse at P0 by energizing the a, b, c, d and f lines, so that all peripheral items on the f line (items 1-4) will receive three inputs. If any of these is ready for data transfer a signal is transmitted over line g to the computer, which then de-energizes line c at pulse P1 so that items 1 and 2 are tested, or if none of items 1-4 are calling for connection P1 will act to energize line e and de-energize f in addition to de-energizing c, so that items 5 and 6 are tested. At pulse P2 line b, a is de-energized, and c and d are interchanged or not according as an item has or has not transmitted a signal back over line g. At pulse P3 a and b are similarly interchanged if necessary, and at P4 the setting of the search highways is transferred to an X register whence it is subsequently transmitted over address highways to be identified by the decoder of the selected unit to effect the necessary connection to the computer by means described in Specification 931,772.
Patent GB-956990-A (GB)
Title: A method for manufacturing aluminum
IPC: C22B21/00
Filed: 1961-10-25
Abstract: A method for manufacturing aluminium comprises heating a complex of an alkylaluminium compound having the general formula (R1R2CHCH2)2AlY, where R1 and R2 are hydrogen atoms and/or alkyl radicals and Y is a hydrogen atom or the R1R1CH.CH2 radical, up to a temperature at which said compound is decomposed, (e.g. 180-300  DEG C.).  The complex former may be (1) MZ where M is an alkali metal and Z is an alkyl radical, hydrogen atom, halogen atom or the 1/3 AlF6 radical, (2) ethers of the form R3R4O where R3 and R4 are hydrocarbon radicals and may be directly linked in the form of cyclic ethers, (3) polyethers having 2 or 3 oxide linkages per hydrocarbon molecule, (4) amines of the general formula R5R6R7N wherein R5, R6 and R7 are hydrogen atoms and/or alkyl radicals, and (5) quaternary ammonium salts of the formula R8R9R10R11NX where R8, R9, R10 and R11 are alkyl radicals and X is a halogen atom.  The reaction may be carried out in the presence of seed aluminium powder and may be carried out in a continuous manner so that reactants are added to make up the loss due to reaction, and the products are removed continuously, e.g. by scraping up from the reaction mass.  Specification 788,619 is referred to.
Patent GB-1311985-A (GB)
Title: Cutting head for dry shavers
IPC: B26B19/38
Filed: 1970-08-10
Abstract: 1311985 Dry shavers BRAUN AG 10 Aug 1970 [26 Aug 1969] 38458/70 Heading B4B A dry shaver cutting head, Fig. 1 (not shown), includes an apertured cutting foil having two different forms of aperture interspersed over the operative part of the foil and separated by bridges. Square apertures 20, Fig. 4, may be surrounded by adjacent slots 21-24, or paired square apertures (30), (300), Fig. 5 (not shown), may be surrounded by slots (31)-(34) of unequal length. Further, Fig. 6 (not shown), hexagonal apertures (40) may be surrounded by parallelogram-shaped slots (41)-(46), or ex tended slots 47, Fig. 7, may lie adjacent hexagonal and triangular apertures 40, 48. Also, Fig. 8, generally triangular apertures 50 may be separated by corresponding slots 51-53.
Patent GB-869807-A (GB)
Title: Process for the preparation of 3-substituted oxazolid-2:4-diones
Inventor: PIANKA MAX
IPC: C07D263/44
Filed: 1958-11-28
Abstract: 3-Substituted oxazolid-2,4-diones are prepared by cyclization of halogenacyl N-substituted carbamic acid esters.  In particular, compounds of the general formula:  <FORM:0869807/IV (b)/1> are prepared by cyclizing a compound of the general formula: XR11CHCO,NR,COOR1 wherein R represents a saturated or unsaturated aliphatic group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted heterocyclic group or a substituted or unsubstituted alicyclic group, R1 represents a halogenalkyl or an alkyl group, R11 a hydrogen atom or an alkyl group, and X a halogen atom.  The process may be combined with one wherein the starting materials (II) are prepared by reacting a compound RNH COOR1 with a compound XCH,R11,COX, and in this case the compound (II) may be cyclized without isolation.
Patent GB-1125900-A (GB)
Title: Stabilisation of resin
Inventor: HURLOCK RONALD JAMES
IPC: C08K5/39
Filed: 1966-08-30
Abstract: 1,125,900. Stabilized ABS resins. IMPERIAL CHEMICAL INDUSTRIES Ltd. 18 Aug., 1967 [30 Aug., 1966], No. 38555/66. Heading C3P. An ABS resin is stabilized by the incorporation therein of a thiocarbamoyl compound of formula wherein n is 1 or 2, R 1  is a hydroxyphenyl group optionally substituted by one or two alkyl or cycloalkyl groups, R 2  is hydrogen or an alkyl or cycloalkyl group, R 3  is an alkyl or cycloalkyl group, or R 2  and R 3  together with the nitrogen atom form a heterocyclic ring.
Patent GB-1330380-A (GB)
Title: Position locating system
IPC: G01S1/30
Filed: 1971-08-17
Abstract: 1330380 Radio navigation ASTROPHYSICS RESEARCH CORP 17 Aug 1971 [17 Aug 1970] 38584/71 Heading H4D In a system affording an indication at a central station of a mobile unit and utilizing radio transmitters at fixed locations providing emissions received at the mobile unit, the latter incorporates means for translating the received signals to low frequencies in the audio range for transmission to the central station in a voice communications channel, and the translator has means for providing reference signals of different frequencies and predetermined phases, each reference signal differs in frequency from a corresponding one of the received signals by one of the low frequencies and means for mixing each reference signal with the corresponding one of the received signals. Communication signals may be added. Processing means at the central station converts positional output signals to digital form for computing. The initiating navigation system may be a or an, omega or phase-comparison hyperbolic utilizing harmonically-related carrier frequencies.
Patent GB-882546-A (GB)
Title: Method of adding hydrogen bromide to vinylaryl compounds
Inventor: WILKINSON BRUCE WENDELL
IPC: B01J19/08
Filed: 1959-11-13
Abstract: 2-Bromoethyl benzene and other 2-bromoethyl aromatic compounds are produced by reacting styrene or the appropriate vinylaryl compound, dissolved in an inert solvent, with gaseous hydrogen bromide while the system is exposed to a field of high-energy ionizing radiation, e.g. from cobalt-60, cesium-137 or an electron-beam or X-ray generator, of an intensity sufficient to give a dosage absorption of at least 5,000, preferably between 50,000 and 1 million, rads per hour, 1 rad representing 100 ergs of energy absorbed per gram of vinyl compound.  The vinyl compound is preferably dissolved in pentane, heptane, carbon tetrachloride, or 1,1,1-trichloroethane. After hydrobromination, the reaction product is neutralized with sodium carbonate, washed with water, dried and distilled in the presence of iron to decompose any 1-bromoethyl compound.  In Example 1, gaseous hydrogen bromide is sparged, for 1-6 hours, into 117 grams of a mixture of 1 part by volume of styrene and 5 parts by volume of carbon tetrachloride, while it is maintained at about 25 DEG C., and while it is subjected to gamma radiation from a cobalt-60 source at a dose rate of 400,000 rads per hour.  A 97% yield of 2-bromoethyl benzene is obtained.  Examples 2 to 12 relate to a continuous process for the hydrobromination of styrene in carbon tetrachloride.  Other vinylaryl compounds which may be similarly hydrobrominated are: vinyltoluene, dimethylstyrene, vinylmesitylene, monochloro- and dichlorostyrenes, chloromethylstyrenes, hydroxystyrene, methoxystyrene, divinylbenzene, alkyldivinylbenzenes, chlorodivinylbenzenes, and divinylnaphthalene.  Specifications 554,499 and 825,476 are referred to.
Patent GB-1322781-A (GB)
Title: Radiothermoluminescent materials and dosimetry methods
IPC: G01T1/11
Filed: 1970-08-12
Abstract: 1322781 Thermoluminescence DAI NIPPON TORYO KK 12 Aug 1970 [13 Aug 1969] 38889/70 Heading C4S A method of measuring a dose of radiation comprises exposing to the dose a phosphor consisting of a magnesium oxide-silicon oxide host containing Tb and/or Ce as activator, the molar ratio of the oxides (Si to Mg) being in the range 0À03 to 3À0 inclusive and with 10<SP>-5</SP> to 3 x 10<SP>-2</SP> grm. atm. of activator/mole of magnesium oxide, heating the phosphor, and measuring the thermoluminescence. An exemplified radiothermoluminescent material has a silicon oxide to magnesium oxide molar ratio of 0À3 and 10<SP>-5</SP> to 3 x 10<SP>-2</SP> gram atoms of Tb and/or Ce, further concentrations being specified. In preparation, the starting materials which may be oxides or materials convertible thereto on heating, examples being given, may be heated at from 1300 C. to 2000 C. in air for 0À5 to 20 hrs. and an optional second heating at from 1000 to 1500 C. for 1 to 5 hours in Ar or N 2  to enhance emission. Thermoluminescent mechanisms with impurities, defects, and metastable states are discussed with visible or near visible emission at room temperature or lower, the above phosphor exhibiting a peak at 190 C. and smaller peak due to any light incidence (Fig. 3, not shown). Figs. 1 and 2 (not shown) illustrate emissions for specific compositions, and Fig. 4 (not shown) illustrates the linear effect of γ- or X-ray dosage. Heating may be in air in an electric furnace followed by quenching and crushing. Mixing may be dry in a ball or roll mill or in a wet process with water or ethyl alcohol, or coprecipitation by means of hydroxides for example. The dosimeter may include a 1 mm. diameter by 10 mm. glass tube together with inert gas, or the material may be solidified, e.g. by compressing with a tabletting agent such as potassium bromide or by embedding in a thermoresistant resin such as fluorine or silicon resin. Examples of preparations are described for specified compositions and inclusions of Tb as Tb 2 O 3  or Tb 4 O 7  in the starting mix is instanced. Instanced are from several tens ÁR and 10<SP>-4</SP> to 5 x 10<SP>4</SP> R radiations and γ-rays from Co<SP>60</SP>, electron beams from accelerating apparatus, X-rays from generating apparatus, X-rays being used in medical diagnosis and non- destructive testings, Co<SP>60</SP> for medical purposes; exposure for improvement of species in agricultural fields, food presevation and synthesis and improvement of industrial materials, and requiring exposure measurements.
Patent GB-1320224-A (GB)
Title: Lined reactors
IPC: C01G31/00
Filed: 1970-08-12
Abstract: 1320224 Refractory linings DYNAMIT NOBEL AG 12 Aug 1970 [13 Aug 1969 (2) 2 Oct 1969] 38939/70 Heading C1J A reactor lining composition comprises a refractory and a binder of a partially hydrolysed mixed alcoholate of silicon and of Al and/or Zr in a solvent. Specified refractories are αAl 2 O 3 , MgO, BeO, ZrO 2 , ThO 2 , MgO.Al 2 O 3 , ZrSiO 4 , forsterite, mullite and sillimanite, whilst solvents are acetone and MeCoEt. The composition can be consolidated by treating with a moist non-reactive gas, by vibrating (both being followed by heating) or by calcining.
Patent GB-1117127-A (GB)
Title: Improvements in or relating to vertical and horizontal centre-hung windows
IPC: E05D11/00
Filed: 1965-09-13
Abstract: 1,117,127. Releasable fastenings. ELTREVA A.G. 13 Sept., 1965 [11 Sept., 1965], No. 39001/65. Addition to 1032818. Heading E2A. A vertical or horizontal centre hung window comprises a window casement mounted in a window frame by means of pivotal journals, an external contracting brake shoe 2 which is mounted on the frame and is actuable by a cam 6 to engage and disengage one of said journals 12 on hand lever 18 through which the cam is operable to control 'the brake shoe, a fastening rail 20 mounted on the frame alongside the brake shoe and provided with a slot 19 through which the hand lever extends one edge of the slot being angled along part of its length relative to an imaginary surface along which the hand lever is movable whereby the hand lever co-operates with said one edge in guiding the fastening rail to and from a fastening position in accordance with the actuation of the brake shoe. In the construction described the fastening rail is biassed upwardly towards its fastening position by springs retracting against the frame and the edge of the slot is the lower edge, a part being downwardly angled.
Patent GB-807890-A (GB)
Title: Derivatives of 3-hydroxy-anthranilic acid
IPC: C07K1/06
Filed: 1956-12-21
Abstract: The invention comprises 3-hydroxy-anthranilic acid derivatives of the general formula <FORM:0807890/IV (b)/1> (wherein X is a radical of an amino-acid, other than glycine, or an amino-acid ester, or of a peptide or peptide ester, and R is hydrogen or an alkyl group, preferably methyl), and their preparation by reacting the corresponding 3-hydroxy-2-nitrobenzoic acids (as such) with amino-acid esters or peptide esters or with their derivatives modified in the amino group in such a manner as to be able to react with the carboxyl group, or reacting derivatives of 3-hydroxy-2-nitrobenzoic acid modified in the carboxyl group in such a manner as to be able to react with the amino group of amino-acids or peptides or their esters, or by reacting 3-hydroxy-2 nitrobenzoic acid peptides having a free carboxyl group at the peptide end with further amino-acids or peptides or their esters, and in each case subsequently reducing the aromatic nitro group to an amino group. Examples describe the preparation of N-(2-amino-3-hydroxy-4-methylbenzoyl)-glycine ethyl ester, N-(2-amino - 3 - hydroxy - 4 - methylbenzoyl)-glycylglycine ethyl ester and N-(2-amino-3-hydroxy-4-methylbenzoyl)-glycine benzyl ester by hydrogenating the corresponding nitro-compounds over Raney nickel.  N - (2 - Nitro - 3 - hydroxy - 4 - methylbenzoyl)-glycine is prepared by reacting 2-nitro-3-hydroxy - 4 - methylbenzoyl chloride (from the acid and thionyl chloride) with glycine, or by the alkaline hydrolysis of N-(2-nitro-3-hydroxy-4 - methylbenzoyl) - glycine ethyl ester obtained by reacting 2-nitro-3-hydroxy-4-methylbenzoic acid with glycine ethyl ester in the presence of dicyclohexylcarbodi-imide.  N - (2 - Nitro - 3 - hydroxy - 4 - methylbenzoyl) - glycylglycine ethyl ester is prepared by reacting 2-nitro-3-hydroxy-4-methylbenzoic acid with glycylglycine ethyl ester in the presence of dicyclohexylcarbodi-imide, or by reacting N-(2-nitro-3-hydroxy-4-methylbenzoyl)-glycine with glycine ethyl ester hydrochloride in the presence of tetraethylpyrophosphite and triethylamine in diethylphosphite.  N - (2 - Nitro - 3 - hydroxy - 4 - methylbenzoyl)-glycine benzyl ester is obtained by transesterifying the corresponding ethyl ester with benzyl alcohol and hydrogen chloride.  N-(2-Nitro - 3 - hydroxy - 4 - methylbenzoyl) - threonine is prepared by reacting 2-nitro-3-hydroxy-4-methylbenzoyl chloride with threonine.  N - (2 - Amino - 3 - hydroxy - 4 - methylbenzoyl) - glycine ethyl ester, -glycylglycine ethyl ester and -glycine benzyl ester are characterized by conversion (by air oxidation) to, respectively, 1,8-dimethyl-3-aminophenoxazone-(2) - 4,5 - dicarbonyl - bis - glycine ethyl ester, -glycylglycine ethyl ester and -glycine benzyl-ester.  Specification 807,687 is referred to.
Patent GB-1262055-A (GB)
Title: Self-sealing dust bag
IPC: A47L9/14
Filed: 1970-08-13
Abstract: 1,262,055. Self-sealing bag for vacuum cleaner. ELECTROLUX Ltd. 13 Aug., 1970 [5 Sept., 1969], No. 39062/70. Heading B1T. A disposable paper dust bag for a vacuum cleaner has a cardboard end plate with an aperture 14 therein bridged by a disc 15 of porous foamed rubber or polyurethane with one or more slits 16 therein, which allow an inlet tube to be pushed through the disc and which close again when the tube is withdrawn. As shown, two slits 16 form a cruciform shape, and disc 15 is sandwiched between two plies of plate 10 (Fig. 2, not shown). Or the disc could be stuck to one side of a single ply plate. Disc 15 is at least 3mm thick.
Patent GB-979880-A (GB)
Title: Improvements relating to bale collecting sledges
IPC: A01D85/00
Filed: 1963-10-08
Abstract: 979,880. Bale sledges. T. W. WORSDALE. Oct. 8, 1963, No. 39524/63. Heading B5F. A bale sledge for receiving two courses of bales, one above the other, comprises retaining arms 2 held in the operative position shown by means of a hinged gate 6 co-operating with locking arms 3. The arms 2, 3 are fixed to pivoted shafts 4. Release of the retaining arms 2 is effected when an upper bale moves the gate 6 clear of the locking arms 3.
Patent GB-1299467-A (GB)
Title: Improvements relating to folders for enclosing record sheets
Inventor: HARRIS JOHN
IPC: B42D1/06
Filed: 1970-08-17
Abstract: 1299467 Filing folders JOHN HARRIS DESIGN ASSOCIATES Ltd 17 Aug 1971 [17 Aug 1970] 39566/70 Heading B6E A filing folder for retention of printed reports 11 comprises a pair of covers 2, 3 articulated to each other by a spine folded along 2n + 1 (where n is at least 2) parallel fold lines 4, 5 . . . 8 to provide at least the inner pocket in which are secured the reports 11 by staples 12, the staples being rendered invisible by providing the spine portions between pairs of external fold lines 4, 5 and 7, 8 with self-adhesive strips 9, 10 by means of which the facing spine portions, defining between them outer pockets, are adhered to each other. The self-adhesive strips may be associated with protective strips. Alternatively, the strips may be replaced by thermoplastics material.
Patent GB-1407826-A (GB)
Title: Speed regulating system for an electrically powered vehicle
IPC: B60L15/20
Filed: 1972-08-25
Abstract: 1407826 Automatic speed regulation BROWN BOVERIE & CIE A G 25 Aug 1972 [28 Aug 1971] 39805/72 Heading G3N A system for regulating the driving and braking of a self-propelled electric vehicle forms a desired torque value according to expressions simulated by a computing circuit and using electrical signals representing actual and desired vehicle speeds and a maximum torque value. The expressions produce a linear relationship between torque setting and desired speed set by a single control element, avoiding excessive and abrupt torque variations. The computing circuit may include a D.C. amplifier with a feedback transistor providing an impedance dependent on the actual speed signal.
Patent GB-1405285-A (GB)
Title: Semiconductor information storage devices
IPC: G11C11/411
Filed: 1972-08-30
Abstract: 1405285 Semi-conductor devices FERRANTI Ltd 28 Aug 1973 [30 Aug 1972] 40168/72 Heading H4K [Also in Division H3] A pair of cross-coupled multi-emitter transistors 31, 32 are formed by collector-diffusionisolation techniques. Each collector is formed by a N+ buried layer and isolation zone 13, 20 (Fig. 1, which is section I-I of Fig. 5), and emitter zones 161, 16<SP>11</SP>, 16<SP>111</SP> are formed in the epitaxial P+ layer 11 forming the base. A passivating silicon dioxide layer (not shown) on the surface has contacts made through it to the emitters, base and collector, and is overlaid with aluminium conductors. One of these conductors 18 short-circuits one of the emitter zones 16<SP>111</SP> to the base zone 15. The emitter zone 16<SP>1</SP> carries two electrodes 17<SP>1</SP>. The surface of the p-epitaxial layer is made p + (not shown) The collector resistors R1, R2 are provided by a common doped region 60 in the epitaxial layer, the common contact 64 defining the two resistor portions.
Patent GB-1438718-A (GB)
Title: Isomerisation of lower polymers of butadiene
IPC: C08C19/10
Filed: 1973-08-24
Abstract: 1438718 Isomerizing butadiene polymers NIPPON OIL CO Ltd 24 Aug 1973 [25 Aug 1972 28 Sept 1972] 40330/73 Heading C3P Lower polymers of butadiene and copolymers of butadiene with other conjugated dienes or vinyl aromatic monomers, said polymers and copolymers being liquid or semi-solid at room temperature and having a M.W. of 300- 10,000, are isomerized to give products containing conjugated double bonds by contact at 0-200‹ C. with a catalyst comprising (1) an organic alkali metal compound and (2) a diamine compound of formula in which n is 2 or 3, and the Rs each represent hydrogen or a C 1-20  organic radical (including substituted radicals) optionally any two of R 1  to R 4  being bonded together to form a cyclic structure. Alternatively, isomerization may be effected at 0-200‹ C. by adding a diamine compound as defined above to a polymerization mixture of monomers defined above, the polymerization having been effected in the presence of an alkali metal or organic alkali metal compound as catalyst. Both procedures are illustrated in the examples, the polymer being polybutadiene or butadiene/styrene copolymer of various stereo structures; the (1) component of the catalyst being, for the first procedure, benzyl sodium, phenyl sodium, amyl sodium, butyl lithium or phenyl potassium, and, for the alternative procedure, benzyl sodium, or orthoterphenyl/sodium complex, butyl lithium or metallic sodium; and the diamine compound (2) being ethylene diamine, tetramethylethylene diamine, tetraethylethylene diamine, diethylene triamine, triethylene diamine, and certain of these amines containing additional methyl substituents. Uses.-Quick-dry paint vehicles, moulded articles, intermediates for further reaction.