baber/WOPTO huggingface dataset:
Patent GB-731133-A (GB)
Title: Means for measurement by electrical condenser of characteristics and conditions of material
IPC: G01N27/22
Filed: 1953-09-08
Abstract: 731,133. Electric tests and measurements. FOXBORO CO. Sept. 8, 1953 [Sept. 11, 1952], No. 24844/53. Class 37. Apparatus for measuring the moisture content of a material by determining the capacity of a condenser having the material as part of its dielectric is characterized in that the test material is located across the edges of the plates of the test condenser, which is itself constructed and connected into a bridge circuit in such a way that the direct capacitance between the condenser plates is effectively eliminated. Construction of measuring condenser.-The measuring condenser comprises a number of pairs of plates 21, 22 (Fig. IX), and shields 23, with interleaved insulating strips 42, having bent extensions 43, 45, 23<1> respectively which, on complete assembly of a series of such units, are electrically connected together. The complete assembly is located in a housing 29 (Fig. VII), with a smooth, oval, convex surface 30 over which the material to be tested passes. The shields 23 extend beyond the condenser plates 21, 22 in all directions except the upper edge. Circuit arrangement.-The complete measuring condenser Cm (Fig. I), is connected into a bridge network 10 fed with 1000 cycle A.C. from a source 15 across two coils 16, 17 comprising two of the bridge arms, the fourth arm consisting of an adjustable condenser 20. The unbalance current is amplified at 11, rectified at 12, and selectively energizes coils 47, 48 to adjust the value of condenser 20 to establish balance, the movement of the plate of condenser 20 being indicated on a recorder 14. It is shown that the direct capacitances Cmgl, Cmg<2> between the plates 21, 22 and the shield 23, which is earthed, does not affect the bridge balance, and the bridge therefore indicates the edge capacity Cm<1> of the measuring condenser, which is determined by the moisture content of the tested material 24 forming its dielectric.
Patent GB-320193-A (GB)
Title: Improvements relating to the measurement of the temperature of electric cables
IPC: G01K7/02
Filed: 1928-08-29
Abstract: 320,193. Callender's Cable & Construction Co., Ltd., and Brazier, L. G. Aug. 29, 1928. Thermometers.-In order to determine the temperature of a point within an electric cable which is not accessible for direct measurement, a reference length of cable is heated internally at a rate proportional to the heating effect of the load on the actual cable at the point of interest, the temperatures of the exterior surfaces of the two cables are maintained at the same value or in a defined relation to each other, and means are provided for indicating the temperature in the interior of the reference cable at a point corresponding to the point of interest in the real cable. The point A denotes the position at which the core temperature of the cable 1 is to be determined, this, cable having a number ot conductors 2 and a lead sheath 3. The reference cable 4 is preferably a short length of the real cable in which the central strand of each conductor has been replaced by a heating resistance 6. A transformer 7 supplies current to the wires 6 so that the heating effect per unit length of the cable 4 is equal or proportional to that of the current in the cable 1. The hot junctions 8<a>, 9<a> of thermo-couples 8, 9 are attached to the sheaths 3, 5, the cold junctions being mamtained at the same temperature. The two thermocouples are connected in opposition to a controller 17 arranged to switch in a heating device 12 or a cooling device so that the sheaths 3, 5 are maintained at the same temperature. The hot junction 16<a >of a thermo-couple 16 is attached to the wire 6 and this couple is connected to a measuring-instrument 15 which indicates the desired core temperature of the cable 1. Specification 170,728 is referred to.
Patent GB-827867-A (GB)
Title: Improvements in or relating to locking means for automobiles
IPC: B60R25/04
Filed: 1956-08-15
Abstract: 827,867. Preventing unauthorized use. McNAMARA, R. E. Aug. 15, 1956 [Aug. 16, 1955], No. 24909/56. Class 7(2) [Also in Groups XXV and XXXI] Locking means provided in an automobile adjacent the driver's position, controls the operation of remote devices such as the ignition switch, door, bonnet and trunk locks. The locking means comprises a plurality of control rods 18 lockable against axial movement in a casing 24 on the steering column, by a master key 8, 11 depressing an annular member 15 causing a plurality of locking pins 16 to interlock with the rods 18. When the tumblers 9 of a combination lock in the steering wheel hub are correctly aligned the master key 8, 11 can be moved inwards to move a cam 10 on the key, off a roller 12 carried by a pin 12a, Fig. 2, connecting two rods 14 fixed to the annular member 15, springs 13 on the rods 14 lifting the rods 14 and member 15 to release the locking pins 16 and permitting the control rods 18 to be moved axially by finger latches 1, 2, 3, 4 to operate the bonnet lock, ignition switch 23, door and trunk locks respectively, the bonnet, door and trunk locks being operated by light cables fixed to the end of rods 18 and extending to spring locks or electrical devices. The finger latch 3 is maintained in its upper position in which the doors are unlocked, by a spring Fig. 10, not shown, until positively pressed down. U.S.A. Specification 2,270,850 is referred to.
Patent GB-440829-A (GB)
Title: Improved ignition means for electric arc or discharge apparatus
IPC: H01J13/34
Filed: 1934-08-29
Abstract: 440,829. Metallic-vapour apparatus. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London. Aug. 29, 1934, No. 24930. Convention date, Aug. 30, 1933. [Class 39 (i)] An ignition electrode is adapted to dip permanently into the liquid cathode and comprises transverse layers of metal 3 which are separated from one another by insulating layers 2, but are electrically connected together by a central core 1 of material having a high resistance. Platinum, molybdenum or tungsten discs may be separated by discs of porcelain, quartz or aluminium oxide and the core consists of boron, boron carbide, silit or the material known under the Registered Trade Mark " Carborundum." The electrode may be positioned so that its longitudinal axis is inclined to the surface of the cathode, as shown in Fig. 2. Alternatively, the discs may be inclined to the axis of the core which is so arranged that the discs are inclined to the cathode surface. The arc root on the electrode may be located by replacing segments of the metal discs with insulating inserts. In a modification, the core is divided into pieces 7, Fig. 5, which are located within apertures in the insulating discs 2 and connect imperforate metal discs 3 together. The discs are secured together by insulating bolts 8 which may be provided internally with water cooling tubes.
Patent GB-403480-A (GB)
Title: Process for the vulcanisation of caoutchouc
IPC: C08K3/32
Filed: 1932-09-08
Abstract: Vulcanization of rubber by the use of sulphides of phosphorus, as described in Specification 230,637, [Class 70, Indiarubber &c.], is accelerated by addition to the sulphide of an inorganic base and free sulphur, with or without oil, and is retarded by the addition of polyhydroxy bodies such as glycerine, starch or ester gum, or of organic bases, aldehyde amine condensation products, pine tar, creosote, or lycopodium.  Several examples are given, of which the following is typical:-2.24 parts of phosphorus sulphide, 3.20 of sulphur, 0.16 of MgO, are mixed and ground in 2.4 parts of oil, and are added to 100 parts of rubber which may be left to vulcanize at room temperature, or heated to 120 DEG  C. for 15 min.  The addition of 1-2 per cent of ester gum delays the vulcanization of the rubber for sufficient time for manipulation.
Patent GB-863656-A (GB)
Title: Improvements in or relating to aerials
Inventor: ROBERTS ROBERT SYDNEY
IPC: H01Q5/321
Filed: 1958-08-05
Abstract: 863,656. Aerials; R.F. couplings. WOLSEY ELECTRONICS Ltd. July 31, 1959 [Aug. 5, 1958], No. 25027/58. Class 40(7) [Also in Group XL(b)] An aerial system which is resonant at two spaced frequencies consists of two conductive elements connected by parallel-connected inductance and capacitance. For example the folded dipole 1 may have its two elements centrally connected by inductor L in parallel with capacitor C. The aerial feeder is connected at the terminals 2, 3. The capacitor serves to by-pass the inductor to give resonance at a higher frequency whilst the inductor tunes the system to resonance at a relatively low frequency. At this low frequency the impedance of the capacitor will be high. In another arrangement straight elements in V formation interconnected centrally by the parallel inductance and capacitance units are used. In this embodiment the feeder is connected to the opposite ends of the parallel circuit. The folded dipole elements may also be arranged in V formation and may be mounted on a housing containing an amplifier and the inductor and capacitor (Fig. 3, not shown). In one form of amplifier the aerial signals are fed to the grid of valve 4 having two series connected inductors L2 and L1 in its anode lead. The junction of the two inductors is connected to earth through Cl and they are respectively inductively linked with windings 6 and 7 series connected in the output circuit. At the higher frequency Cl presents a relatively low impedance and the load impedance of the valve is L2 in parallel with the valve internal capacitance (C2). At the lower frequency L2 and C2 are not important and the load is formed by L1 and Cl.
Patent GB-1316813-A (GB)
Title: Jacking device
IPC: E04G21/16
Filed: 1970-05-22
Abstract: 1316813 Step-by-step jacks E J VON HEIDENSTAM 22 May 1970 [23 May 1969] 25048/70 Heading B8J A jack 1 comprises a casing 10 housing an hydraulic piston 8 and upper and lower supporting nuts 11, 9 threaded on to a screwed rod 2. In the climbing mode the rod 2 is fixed, pressure fluid fed to upper chamber 7 so that the load is taken by the lower nut 9 and the casing 10 forced upwards carrying with it building slab 4 In this phase the upper nut 11 is unloaded and caused to follow-up the casing by a chain 20 driven by a chain 23, connected similarly to other jacks, through chain wheels 21, 24 connected by an axle 22. In the return stroke the load is taken by the upper nut 11, upper chamber 7 being connected to exhaust and lower chamber 29 being fed with pressure fluid, the lower nut 9 being caused to follow-up the piston 8 through chain drive 34. The jack 1 may alternatively be used with its casing 10 fixed to lift or lower the rod 2 carrying a load. A large number of the jacks 1 may be interconnected, for simultaneously lifting a large load, by a transmission system, Fig. 4 (not shown).
Patent GB-669950-A (GB)
Title: A method and apparatus for measuring the colour of substantially white substances
Inventor: KENT-JONES DOUGLAS WILLIAM
IPC: G01J3/46
Filed: 1949-09-29
Abstract: 669,950. Photo-electric colorimeters. JONES, D. W. KENT-, and AMOS, A. J., (practising as KENT-JONES & A. J. AMOS, D. W.). Aug. 17, 1950 [Sept. 29, 1949], No. 25062/49. Class 40 (iii). [Also in Group XX] A method of measuring the colour (or brightness) of a substantially white substance, and in particular of flour, comprises causing beams of parallel rays of infra-red free light to illuminate both the surface of the substantially white substance and a standard comparative surface and measuring the amount of light reflected by each by means of a pair of photo-electric cells and a current measuring instrument in circuit therewith, a filter being disposed in the system so that the light reaching the photo-electric cells has a wavelength within the range of 500 to 560 mÁ. Light within the stated wavelength range, and preferably of 530 mÁ, is used because the yellowness due to yellow pigments in flour then has least effect and dullness due to bran powder is therefore most accurately measured. The standard substance is preferably heavy magnesium oxide. In one embodiment light from a lamp 1 passes through infra-red filters 18 to lenses 2 and 3 which form two beams of parallel light divided respectively towards glass cells 4 and 5, each of which at the beginning of a test contains the standard substance. Light is reflected from the cells through filters 8 having a main transmission of 530 mÁ light to photo-electric cells 6 and 7 connected with a current measuring instrument in a null indicating circuit. Arranged in front of lens 2 is a shutter 9 operated by a set zero control knob 10. The precise position of the shutter 9 with the knob 10 out is determined by screw adjustment 11 set to make the best use of the scale over the range of samples to be tested. In conducting the test calibrated knob 16 controlling the position of shutter 15 in front of lens 3 by means of cam 17 is set to zero, knob 10 is lifted to render shutter 9 operative, and, with the standard substance in both cells, the set zero knob 14 controlling shutter 12 is adjusted until the current measuring instrument indicates a null. Cell 4 is then changed for a similar cell containing the test sample, knob 10 is depressed to move shutter 9 into the ineffective position and knob 16 adjusted to again obtain a null. The amount calibrated knob 16 has to be rotated represents in arbitrary units the dullness factor of the test sample.
Patent GB-1107094-A (GB)
Title: Edible collagenous products
Inventor: KIDNEY ALLAN JAMES
IPC: A22C13/00
Filed: 1965-06-14
Abstract: 1,107,094. Collagen films. UNILEVER Ltd. 13 June, 1966 [14 June, 1965], No. 25123/65. Heading B5B. A method of preparing a collagenous product includes forming the product, applying a setting solution, applying a solution of a hydrophilic material and drying in the presence of the hydrophilic material. Application of the setting solution may constitute the application of the hydrophilic material, the setting solution acting as the solution of the hydrophilic material. The hygroscopic material may be removed from the collagenous product after the drying treatment. The hydrophilic material may be a salt, especially sodium chloride, or a polyhydric alcohol, especially sucrose or polyethylene glycol. The collagenous product may be formed from collagen treated with an acid, or with an alkali, or with a protoolytic enzyme. The collagenous product may contain a plasticizer, especilly glycerol. The collagenous product may be dried in the presence of the hydrophilic material to a moisture content not greater than 40% by weight of the product, and especially between 15% and 30%. The collagenous product may be dried in the presence of the hydrophilic material to a moisture content of not more than 40%, especially 15% to 30%. When the collagenous product is formed by setting with a hydrophilic material, it may be convenient to dry the product to a moisture content within the above-mentioned limits in the presence of that hydrophilic material. Alternatively the hydrophilic material used to set the collagenous product may be removed or partially removed by transferring the product to a second hydrophilic material, the product then being dried or partially dried in the presence of that second hydrophilic material. The collagenous product may be especially a sausage casing, or alternatively a sheet or band, fibre or filament. Examples are given relating to the treatment of collagen sausage casings and films.
Patent GB-1318826-A (GB)
Title: Electro-erosion machining
IPC: B23H7/38
Filed: 1971-04-19
Abstract: 1318826 Electro machining using a magnetic field INDUSTRIELLE ELECTRONIK AGIE LOSONEBEI LOCARNO AG 19 April 1971 [26 March 1970] 25141/71 Heading C7B [Also in Division B3] A magnetic field is produced in an electrodischarge or electro chemical machining gap with the lines of force perpendicular to the erosion front. A permanent magnet or electro-magnetic coil connected to a D.C. or A. C. source can be positioned around or within the electrode and/or workpiece so that the magnetic field produced increases the width of the gap. In one embodiment Fig. 11, magnets 10, 12 are positioned about the electrode 5 and ferromagnetic rods 16 which are connected to a workpiece bath 6 through clamps 9 or to the electrode 5 via a ferromagnetic sheet (17) Fig. 12, (not shown). In another embodiment, Fig.13 a magnet 10, 12 is positioned around a ferromagnetic rod 15 arranged in a bore of the workpiece 7 and abutting a plastics spacer 51 at the lower end of the electrode 5. In an alternative embodiment Fig. 21, (not shown), the workpiece is attached to a magnetic chuck around which is arranged an electromagnetic coil. The electrode may comprise a copper portion (17) Fig.16, (not shown) connected to a ferromagnetic portion (5) or a portion containing a ferromagnetic filling (18) Fig. 17, (not shown) coated with a layer of copper (17). In other embodiments Figs. 18-20, (not shown), the electrode comprises an assembly of parallel rods or tubes which can be coated or filled with ferromagnetic material. A liquid electrolyte or a liquid or gaseous dielectric enriched with ferromagnetic material may be used. The magnetic field can alternatively be used to suppress arcs causing short circuits and to vary the width of the machining gap.
Patent GB-937471-A (GB)
Title: Improvements in or relating to digit-indicator glow-discharge tubes
IPC: H01J17/49
Filed: 1961-07-12
Abstract: 937,471. Glow discharge tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 12, 1961 [July 15, 1960], No. 25235/61. Class 39 (1). Cold cathode glow discharge indicator tube comprises an envelope with a viewing end 16 and a base 15 holding rods 13 each coated with a layer of enamel 14 and supporting eleven anodes 12 of grid form connected in parallel and spaced by insulating rings 17 from digit-shaped cathodes 0-9 connected in parallel. Ring- shaped auxiliary anodes H 0 -H 9  are also supported on the rods 13 and are spaced from adjacent cathodes by insulating rings 18, and from adjacent anodes by insulating rings 19. The ring-shaped auxiliary anodes have diameters not more than twice the diameters of the
Patent GB-796810-A (GB)
Title: Improvements relating to apparatus for compressing a coating of comminuted material around a preformed core
Inventor: TALMAN FRANK ARTHUR JOHN
IPC: B30B11/34
Filed: 1954-09-02
Abstract: 796,810. Rotary table compression-moulding machines. EVANS MEDICAL SUPPLIES, Ltd. Dec. 2, 1955 [Sept. 2, 1954], No. 25539/54. Class 87(2). Apparatus for forming tablets by compressing a coating of comminuted material around preformed cores by means of a pair of punches movable in a die and actuated by passage between compression rollers, has means automatically operable in response to the loading applied to the punches during compression to eject imperfect tablets consisting entirely of coating material or of a core with no coating or insufficient coating. A machine for forming medicinal tablets comprises a rotatable die plate 1 having a circular row of die apertures 2 in each of which a pair of punches 3 is moved on passing between rollers 4 (only one of each of the items 2, 3, 4 being shown). After passing between the rollers 4 the lower punch 3 of each pair is normally guided by a selector track 7 to a cam track 5. When, however, the loading applied by the rollers 4 to a pair of punches 3 is below a predetermined amount as when the die 2 contains only coating material or an insufficiently coated core, the lower roller 4 is not moved downwardly to disturb the mechanism by which the load is applied, viz. rocker arms 10, 11, connecting rod 13, and spring 12, and current is supplied to a solenoid 8 via switches 9, 14 to tilt the selector track 7, so that the lower punch 3 passes to a track 6 and is raised thereby to eject the contents of the die, the ejected object being removed by a scraper (not shown). The switch 9 is operated by a gear wheel driven by the coating machine and is closed only when a pair of punches is between the rollers 4. When a normal pellet is compressed the lower roller 4 is moved downwardly to tilt the rocker arm 11 which carries one of the contacts of the switch 14 so that the latter is opened and the solenoid 8 is not energized. A further switch (not shown) is operated when a punch passes over the track 7 to ensure that the solenoid 8 is energized for a sufficient period. In another construction the selector track 7 is operated hydraulically. Specification 744,799 is referred to.
Patent GB-1069617-A (GB)
Title: Resolution of di-glutamic acid
Filed: 1965-06-16
Abstract: DL-Glutamic acid hydrochloride is optically resolved by adding to a supersturated solution thereof at least 1% (based on the weight of desired optical isomer in the solution) of seed crystals of one optically-active form of glutamic acid hydrochloride, crystallizing solids from the solution, removing said solids from the solution before spontaneous nucleation and crystallization of any substantial portion of the non-seeded enantiomorph occurs, heating the mother liquor at 180 DEG  to 200 DEG  C. to convert the remaining glutamic acid hydrochloride to the fully racemic form and supersaturating the resulting solution with respect to DL-glutamic acid hydrochloride to provide a solution capable of further resolution.
Patent GB-1184816-A (GB)
Title: Method of Preparing a Catalyst Suitable for Manufacturing Formaldehyde from Methanol
IPC: C07C67/00
Filed: 1967-06-02
Abstract: 1,184,816. Oxidation catalysts. SOC. ITALIANA RESINE S.p.A. 2 June, 1967 [4 June, 1966], No. 25547/67. Heading B1E. [Also in Division C2] Oxidation catalysts are made by (1) preparing a solution of (NH 4 ) 6 MO 7 O 24  in HC1 at room temperature and diluting with deionised water until the concentration of (NH 4 ) 6 MO 7 O 24  is 3-7%, the HCl/(NH 4 ) 6 Mo 7 O 24  ratio is 12/1 to 18/1 (2) mixing the resulting solution with an aqueous solution of FeCl 3  at 2-3% concentration in a proportion providing a molar ratio MoO 3 /Fe 2 O 3  in the final catalyst of 10/1 to 5/1 (3) reducing the (NH 4 )+ content to <0.2% by washing (4) squeezing the washed precipitate to a water content of 35-38% and forming a catalyst product containing MoO 3  and Fe 2 O 3  by heating in air at temperatures up to 450‹C.
Patent GB-1344726-A (GB)
Title: Method of preparing crosslinked hydrogels
IPC: C08F20/42
Filed: 1971-04-19
Abstract: 1344726 Cross-linked hydrogels CESKOSLOVENSKA AKADEMIE VED 19 April 1971 [26 March 1970] 25576/71 Heading C3P Cross-linked hydrogels are prepared by forming a primary gel by polymerizing under free radical conditions acrylonitrile alone or together with a minor proportion by weight of methacrylonitrile, vinylidene cyanide, or acrylic or methacrylic acid or amide, in an inorganic solvent which exhibits a chain transfer constant lower than acrylonitrile, the acrylonitrile being present in the solvent in amount of at least 15 weight per cent, and partially hydrolysing the primary gel formed and removing the solvent. The inorganic solvent may be aqueous zinc chloride, lithium bromide, calcium thiocyanate or sodium thiocyanate solution or nitric acid, and small amounts of strong mineral acids, e.g. sulphuric and hydrochloric acids, may be added. The primary gel may be exposed to gaseous hydrogen halide, optionally with infra-red heating, to effect hydrolysis. Amide groups resulting from partial hydrolysis may be converted to carboxyl groups by treating with nitrous acid or a nitrite solution, and carboxyl groups may be reacted with hydroxylamine. The products may be cross-linked with trivalent cations of aluminium, chromium or iron, or by reacting with formaldehyde, hexamethylene tetramine or dimethylol urea in the presence of an acid. Examples describe the polymerizations of acrylonitrile in (I and III) aqueous zinc chloride and hydrolysis of the product with hydrochloric acid; in (II) nitric acid, and in (VI) nitric acid containing sulphuric acid; further reaction of product III with (IV) nitrous acid followed by (V) chromium trichloride; and the hydrolysis of gel product I with (VII) sodium hydroxide.