baber/WOPTO huggingface dataset:
Patent GB-1132772-A (GB)
Title: Coal-winning machine
Inventor: WEINHOLD HEINZ
IPC: E21C27/18
Filed: 1966-02-24
Abstract: 1,132,772. Coal-mining machines. GEWERKSCHAFT EISENHUTTE WESTFALIA. 24 Feb., 1966, No. 8213/66. Heading E1F. A coal-mining machine, e.g. a plough, is provided with a kerfing tool 9 that extends obliquely downwardly relative to the horizontal to beyond the outermost limit of cut of the other coal-cutting means of the machine. Preferably, the tool 9 is vertically and horizontally pivotable with respect to the rest of the machine on which it is mounted, is of swallow tail shape when seen from above and tapers towards its free extremity or extremities.
Patent GB-1384825-A (GB)
Title: Apparatus for measuring the light transmission characterisitcs of a fluid
IPC: G01N21/85
Filed: 1973-02-20
Abstract: 1384825 Photo-electric measurement of light transmissions BIOSPHERICS Inc 20 Feb 1973 [25 May 1972] 8333/73 Heading G1A A piston 35, fig.4, is moved to and fro in an open ended cylinder 48 so as to make a fluid sample in which the cylinder is immersed enter the cylinder bore where it is optically analysed, e.g. for suspended solids. The cylinder 48 is a glass tube surrounded by a casing in which an optical source 45 and two detectors 47 are disposed. The piston 35 moves to and fro in the bore around a rod 40 fixed to the casing by a pin (not shown). Fig.1 shows a rod 12 attached to piston 35 (not shown in Fig.1) within casing 13. The rod 12 is reciprocated by a motor 27 driving a wheel 25 having a crank 24 engaging plate 28 attached to the rod. The apparatus is intended to be mounted in a tank of the fluid to be analysed. Optical components:-Fig.5 shows a cross section of the piston and cylinder arrangement. The source 45 illuminates detector 46 directly through the fluid in the cylinder, while detector 47 is illuminated only along path 55 by light scattered around the rod 40. It is found that a ratio of the signals from the two detectors is a linear measure of the concentration of solids suspended in the fluid, Fig. 7 (not shown). A suitable circuit for combining the detectors with a meter and range changing switch is given, Fig.6 (not shown).
Patent GB-810930-A (GB)
Title: Improved process for the manufacture of organic phosphorus compounds
Inventor: CHILDS ANTHONY FRANCIS
IPC: C07F9/42
Filed: 1954-03-22
Abstract: Mono-alkyl alkylphosphonohalidates of the formula RO-P(= O)(-R1)X, in which R and R1 are alkyl radicals, X is chlorine or fluorine, are prepared by reaction of a dialkyl phosphonohalidite (RO)2PX with an alkyl halide or ester to produce a mixture from which the mono-alkyl alkylphosphonohalidate is separated by fractional distillation under reduced pressure. Thus, di-isopropyl phosphorofluoridite is prepared by interaction of isopropanol and phosphorus dichlorofluoride in the presence of a tertiary base such as diethylaniline.  The di-isopropyl phosphorofluoridite is heated with methyl iodide, dimethyl sulphate or methyl-p-toluene sulphonate to yield isopropyl methylphosphonofluoridate.  Alkyl alkylphosphonochloridates may be produced in analogous manner.
Patent GB-1020383-A (GB)
Title: Control systems for hydraulic pumps and pump-turbines
Inventor: WYCLIFFE JOZEF PAUL
IPC: F03B3/18
Filed: 1962-03-05
Abstract: 1,020,383. Remotely controlled fastenings; clamps. ENGLISH ELECTRIC CO. Ltd. March 1, 1963 [March 5, 1962], No. 8396/62. Headings E2A and E2B. [Also in Divisions F1, F2 and G3] The subject-matter of this specification is substantially the same as that described in Specification 1,020,384 but the claims are concerned with a control system for an hydraulic pump or pump-turbine having guide vanes angularly adjustable about axes transverse to the flow path, which includes means for locking the guide vanes in any predetermined position and electrical switch means for connecting means for controlling the operation of guide vane actuating means to the electrical power supply when the vanes are unlocked and disconnecting therefrom when the guide vanes are locked.
Patent GB-1093405-A (GB)
Title: Anionic polymerisation of lactams
IPC: C08G69/20
Filed: 1965-02-26
Abstract: A lactam is polymerized in the presence of an anionic catalyst and as promoter a di-spiro-2,2-alkylene - 4,4 - alkylene - cyclo - butane - 1,3-dione. Lactams specified are: butyrolactam, oenantholactam, caprylolactam, decyllactam, undecyllactam, laurolactam, and mixtures thereof.  Ionogenic catalysts specified are sodium caprolactamate, Al(Pri)3, ZnEt2, alkali metal alkyls, alkali metals, alkaline earth metals and their hydrides, oxides, hydroxides and carbonates, alkyl magnesium bromides and aryl magnesium bromides; 0.1-10 mole per cent may be used.  Promoters specified are: dispiro - (5,1,5,1) tetradecane - 7,14 - dione and dispiro - (4,1,4,1) dodecane - 6,12 - dione; 0.05-10 mole per cent may be used.  Reaction may be effected by mixing all three ingredients simultaneously or by melting the lactam, adding the catalyst and heating the mixture to the polymerization temperature before adding the promoter.  The polymerization temperature may be between the m.p. of the monomer and that of the polymer, e.g. between 90 DEG  and 250 DEG  C. in which case the product assumes the shape of the reaction vessel, e.g. a cylindrical bar.  The mixture may initially be heated to 90-150 DEG C. and the temperature then allowed to rise further, due to the exothermic reaction. Materials which may be incorporated into the polymer are: dyes, wood flour, carborundum, carbon black, powdered shale, coal dust, coke dust, natural or synthetic fibres and fabrics, polystyrene, polyformaldehyde, polypropylene, polyethylene, polyamides, phenoplasts, and urea and melamine/formaldehyde resins.
Patent GB-685778-A (GB)
Title: Improvements in or relating to electric secondary cells or accumulators
Inventor: CHAPMAN CHRISTOPHER LIONEL CAR
IPC: H01M10/42
Filed: 1950-04-04
Abstract: 685,778. Batteries. YARDNEY INTERNATIONAL CORPORATION. April 2, 1951 [April 4, 1950], No. 8492/50. Class 53. A storage battery having zinc and silver electrodes enclosed in semi-permeable envelopes impregnated with an alkaline electrolyte such as caustic potash is subjected to a treatment before being taken into service, or an exhausted accumulator is regenerated by the same treatment, which consists in first charging the accumulator and then completely immersing it in a large volume of water for a long period such as two or three weeks. The accumulator is short-circuited by the water and slowly discharges. When completely discharged the accumulator is removed and emptied and the envelopes again impregnated with fresh electrolyte and the accumulator re-charged.
Patent GB-370630-A (GB)
Title: Improvements in or relating to iron-nickel alloys
IPC: C22C38/10
Filed: 1931-03-20
Abstract: Magnetic alloys contain 0,5-3,5 per cent o-cobalt and 30-64 per cent of nickel, the ref mainder being iron and less than 5 per cent of other elements and impurities.  The other elements may comprise copper, aluminium, chromium, vanadium, and silicon, the amount of any single element not exceeding 4,5 per cent. Phosphorus and sulphur should be less than 0,2 and 0,01 per cent respectively.  The alloy may be heated at about 800-1100 DEG  C. for at least 1 hour and slowly cooled to 200 DEG  C. over a period of from 1-24 hours. Specification 347,305 is referred to.
Patent GB-274930-A (GB)
Title: Improvements in or relating to automatic regulation in electric lighting systems
IPC: H02J7/18
Filed: 1926-03-30
Abstract: 274,930. Vickers, Ltd., Lyne, F. C., and Etchells, J. March 30, 1926. Supplying and controlling consuming devices from variable-speed dynamos; regulation, automatic.-Train-lighting and other systems for supplying a variable load and charging a battery, and in which a field regulator 7 causes the generation of excessive voltage in order to charge the battery, the regulator shunt winding 4 has a series resistance, the value of which is varied when the lamp load is switched on, the resistance 8 through which the lamps are supplied being switched into parallel with the normal series resistance 13. This causes the generation of a higher charging voltage when lamps are on and this voltage is varied according to the load by reason of the variation in value of the lamp resistance according to the current in it. The lamp resistance may have a switch 9 by which it is short-circuited automatically when the dynamo current or voltage falls to a given value. The main switch controlling the lamp circuit preferably has an additional contact 12 by which the lamp resistance 8 is paralleled with the resistance 13 permanently in series with the shunt coil 4.
Patent GB-564050-A (GB)
Title: Improvements in electric circuit breakers with arc extinguishing devices
IPC: H01H9/34
Filed: 1943-05-31
Abstract: 564,050. Magnetic dust covers. BRITISH THOMSON-HOUSTON CO., Ltd. May 31, 1943, No. 8693. Convention date, May 29,1942. [Class 38 (ii)] [Also in Group XXXVII] An arch shoot comprises plates 17, 18 of high-resistance magnetic material, preferably comprising a mixture of three parts by weight of powdered iron oxide (FE 3 O 4 ) to one part asbestos powder, with 15 c.c.s. of 75 per cent phosphoric acid (H 3 PO 4 ) for each 100 grams of the mixture. The materials are subjected to 3000 lbs./in .<SP>2</SP> pressure at 200 F. to form moulded members or blocks and then further baked at 110 C. for 12 hours to improve dielectric characteristics. A suitable asbestos powder comprises MgO, SiO 2 , Fe 2 O 3 , Al 2 O 3 , H 2 O in the following percentages by weight, 33.3, , 40.92, 8.7, 5.18 and 11.3 respectively. The inner faces of the plates 17, 18 are formed with ridges 19, 20 of uniformly-increasing height, those of one plate interleaving those of the other, so as to form a progressively narrowing zig-zag passage into which the arc is driven and gradually lengthened. Cut-out parts 26 in the top of the intervening spaces of each plate allow of a greater ridge-height thereat. Magnetic slotted cheeks 27, 28 and 29, 30 are provided on either side of arc-runners 14, 15 respectively, and are bridged by magnetic plates 31, 33 insulated at 32, 34 from the runners. The runner 14 is extended at 13 to make a magnetizing half-loop about a bar magnet 31a joining plates 27, 28. A cooling grid comprises alternate vertically-corrugated magnetic sheets 41 and mica or fibre strips 42 which overlap them above and below, and are so spaced as to even out the arc-distribution. By spacing the arc-runners from the plates 17, 18 by suitable insulating material, the plates may contain more iron oxide and so be of lower resistance and higher permeability.
Patent GB-1450661-A (GB)
Title: Carbon brushes for electrical machines
IPC: H01B1/04
Filed: 1974-02-27
Abstract: 1450661 Carbon brushes ROBERT BOSCH GmbH 27 Feb 1974 [28 Feb 1973] 8791/74 Heading C1A [Also in Division C3] Carbon brushes for electrical machines are made from a composition comprising a mixture of carbon and a binding agent which is an aromatic polymer free from cross-linking in which the aromatic nuclei are unsubstituted and linked by a C-C bond, by an atom other than carbon, by a group containing carbon and one or more atoms other than carbon or by a group containing two or more atoms other than carbon.
Patent GB-424033-A (GB)
Title: Improvements in footwear
IPC: A43B3/02
Filed: 1934-03-21
Abstract: 424,033. Protectors for boot uppers. ANDREWS, L., and GUTTA PERCHA & RUBBER (LONDON), Ltd., 84, York Road, King's Cross, London. March 21, 1934, No. 8882. [Classes 17 (ii) and 17 (iii)] A shield of rubber is incorporated in or permanently attached to footwear in front of the waist extending from the inside and around and over the toe portion to engage the gear-changing pedal of a motor-cycle and prevent damage. The shield a may, as shown, be combined with a " kickstart guard " b described in Specification 362,752, and is preferably formed with a non-slipping pattern a<1>.
Patent GB-525802-A (GB)
Title: Improved apparatus for testing sparking plugs
IPC: G01M3/02
Filed: 1939-03-21
Abstract: 525,802. Testing sparking plugs. SAUNDERS, F. S. March 21, 1939, No. 8931. [Class 7 (iv)] Sparking plugs are tested for ignition and for pressure leakage in a chamber 7 to which compressed air can be supplied. Actuation of a lever 25 opens a valve 34 admitting compressed air by way of pipes 38, 35, and simultaneously closes a high-tension circuit across contacts 39, 41. The contact 41 and associated lead 42, are supported in an arch 18 carrying the pressure chamber and bolted to the lever 25 by which it is lowered. Spark observation is effected through an aperture 46 in the casing 2 by reflection from a mirror 47. A transparent plate 8 closes the lower end of the chamber 7. The lever 25 may close lowtension as well as high-tension circuits and is held in the operative position by the engagement of an enclosed spring-pressed roller 28 with the recess 31 in the frame.
Patent GB-449802-A (GB)
Title: Improvements in or relating to two-stroke internal combustion engines
IPC: F01B7/12
Filed: 1936-03-26
Abstract: 449,802. Two-stroke-cycle engines. SULZER FRERES SOC. ANON., Winterthur, Switzerland. March 26, 1936, No. 8979. Convention date, July 4, 1935. [Class 7 (ii)] Pressure variations in the closed-crank chamber o are minimized by making the volume displaced or vacated by the working piston or pistons el, e2 equal to that vacated or displaced by the pump-piston l. The engine is preferably of the opposed-piston type with an intervening combustion chamber ; the pump-piston l may be stepped, affording delivery by the upper side of the volume of air required for each engine cycle.
Patent GB-1454522-A (GB)
Title: Bulked polyester textile yarns
IPC: D02G1/18
Filed: 1973-02-23
Abstract: 1454522 Bulked polyester composite yarn IMPERIAL CHEMICAL INDUSTRIES Ltd 11 Feb 1974 [23 Feb 1973] 8990/73 Headings D1F and D1W A process for the production of a bulked polyester yarn comprises forming a bundle composed of 25-75% by weight of (A) potentially crimpable, drawn bicomponent polyester filaments (as defined) and 75-25% by weight of (B) drawn polyester homofilaments, the filaments (A) having a greater potential shrinkage than the filaments (B); and subjecting the filaments of the bundle to the action of an interlacer 10 using jets of heated gaseous medium, while substantially simultaneously allowing the filaments to relax, the jets of gaseous medium serving to forward the bundle and to interlace and twist the filaments preferably to produce a yarn having alternating compact and loopy zones. In one embodiment, bundles of the two types of filaments are fed from bobbins 1 to guide 2 and feed rolls 3, 4. From the rolls 3, 4 the combined bundles pass to the feed roll 5 of a draw zone and thence to draw roll 7. The drawn bundle is then fed to the interlacer 10 and immediately to a conical expansion chamber 12 where the filaments are relaxed prior to passage to relax rolls 13, 14 and wind-up means 15. The temperature of the heated gaseous medium in the interlacer is in the range 170-250C, preferably 210-240C, and the flow of the medium is in the range 20-80 cubic feet per hour, preferably 40-65 cubic feet per hour. The gaseous medium is usually air. Examples of combinations of bicomponent and homofilaments are given.
Patent GB-435466-A (GB)
Title: Improvements in and relating to the production of ketols
IPC: C07C49/17
Filed: 1934-03-22
Abstract: Ketols are manufactured by reacting aldehydes and ketones in the presence of a very small amount of alkali metal hydroxide, e.g. less than 0,5 c.c. of an alcoholic solution thereof per litre of reaction mixture, with rigid exclusion of air from the reaction mixture.  In an example, hydracetylacetone is produced by adding acetaldehyde to acetone rendered just alkaline to cresol red by the addition of a few drops of a solution of potassium hydroxide in methanol, the temperature being kept at about 30 DEG  C., and nitrogen, free from carbon dioxide, being passed through the reaction vessel.
Patent GB-1375932-A (GB)
Title: Mudguard structure adapted for use in or on a towing vehicle  tractor construction machine or other heavy duty vehicle
IPC: B60R21/13
Filed: 1972-02-28
Abstract: 1375932 Mudguards P E KETTLER 28 Feb 1972 [29 April 1971] 9077/72 Heading B7J A mudguard 1 is reinforced by a stay member 3, made from a heat-treated, high-strength structural steel, the member 3 being of hornshaped construction whose arms 3a, 3b are welded to a plate 2 bolted at 6, 7 to a bearing plate 4 on a vehicle wheel axle 5, the horns 3c being welded to plates 9 secured to the mudguard by bolts 8. The invention is characterized in that the stay material has a high elastic limit whereby a minor accident would not result in the elastic limit being exceeded but a major accident would result in the elastic limit being exceeded with consequent absorption of kinetic energy by the stay.    Reference has been directed by the Comptroller to Specification' 1,286,353.
Patent GB-1410330-A (GB)
Title: Spring brake actuators for disc brakes
IPC: F16D65/18
Filed: 1972-02-28
Abstract: 1410330 Spring applied brake actuators GIRLING Ltd 31 Jan 1973 [28 Feb 1972] 9147/72 Headings F2E and F2F In a disc brake actuator, spring means 9 act through a thrust transmitting assembly comprising an adjustable length strut having a first part 7 fast with a fluid pressure responsive member 5 of a brake release fluid motor and a second part 13, 16 axially manually adjustable relative to the first part between an operative position wherein it abuts a pad assembly 17, 19, 20 for thrust transmission and holds the first part clear of the pad assembly, and an inoperative position wherein there is no thrust transmission, the first part being held clear from engagement with the pad by engagement of the pressure responsive member with a mechanical stop 6a under the action of the spring means. A stack of Belleville washers forming the spring means 9 act through a sleeve forming the first part, with a shoulder 8, an adjuster member 13 of the second part, screwed in the sleeve, and a low friction thrust transmitting member 16 of the second part to a back plate 17 of the pad assembly, the reaction being taken by a stop 10 and a floating caliper 3 to an opposed pad 18. A piston forming the member 5 in a cylinder 4 releases the pad assembly, the piston being held axially by a grub screw on the sleeve 7. The distance B for the piston 5 to contact the cylinder end wall is less than the distance from the sleeve end to the back plate 17 to avoid possible engagement and over application of the brake. The member 13 is screw threadedly adjusted for pad wear and initial pad setting; it is manually adjustable for brake release. The maximum adjusting distance C between stop shoulders on the sleeve 17 and member 13 is equal to twice the permissible wear of the pad 20 minus the maximum piston movement. A wear indicator comprises a plate 25 which moves with the sleeve 17 and contacts a rod 27 breaking an electrical circuit upon excessive travel. In a modification, Fig. 3 (not shown), the piston and sleeve are integral and between the washers and the pad assembly. The wear indicator is actuated by a disc between the piston and the washers.
Patent GB-957402-A (GB)
Title: Planet gear transmission between a turbine and generator
IPC: F03B13/10
Filed: 1963-03-07
Abstract: 957,402. Change-speed gear. BETEILIGUNGS - UND PATENTVERWALTUNGSGESELLSCHAFT. March 7, 1963 [March 8, 1962], No. 9164/63. Heading F2D. [Also in Division F1] A change-speed gear between a turbine and generator comprises a fixed ratio planet train 6, 7, 8 having a fixed ring gear 7, a planet carrier 3 fast with the turbine shaft 1 and a sun gear 8 connected through sleeves 10, 12, 19 to a double clutch member 18 which is selectively clutched at 23, 25 to the generator shaft 17 or to a pinion 30 (or ring gear) of a reversing train 30, 31, 33 having an idler 31 and ring 33 (or pinion) fast with the generator shaft, and the clutch 23, 25 is engaged by pressure liquid when the turbine shaft 1 drives the generator shaft 17 to produce the same direction of rotation in the shafts 1, 17 whilst the clutch 26, 28 is engaged when the generator acting as a motor drives the turbine to produce opposite directions of rotation in the shafts 1, 17, whereupon the turbine is driven reversely to act as a pump. The clutches 23, 25 and 26, 28 may be provided with synchronizing means.
Patent GB-106018-A (GB)
Title: Improvements in and relating to Cigarette Cases.
Inventor: LEVI SAMUEL JOSEPH
IPC: A24F15/18
Filed: 1916-06-29
Abstract: 106,018. Levi, S. J. June 29, 1916. Ornamenting cases &c.-A cigarette case, cigar case, &c. has, in one or both sides, an opening exposing to view a photograph, picture, &c., which is secured in place by a hinged plate a adapted to be fastened in its closed position by a pivoted spring-metal tongue b engaging between small projections c stamped up from the plate a. The central part of the plate a is dished so as to press the photograph &c. outwards against the beaded edge c of the opening.
Patent GB-1023572-A (GB)
Title: Flux compositions for ferrous material
Inventor: BUCKINGHAM HERBERT CHARLES
IPC: C22B9/18
Filed: 1962-03-09
Abstract: A flux composition for forming an electro-conductive slag consists of a mixture of calcium metasilicate and fluorspar, preferably in proportions of 2:1 respectively, and may be bonded with Na (or K) silicates.  The mixture forms a molten slag having a conductivity between 10-150 mhos at 1800  DEG C. and a viscosity within 0.1-0.2 poises at 1800  DEG C. Preferably the composition is such that the conductivity of the molten slag at 1800  DEG C. is between 50-100 mhos.  The flux can be applied to the welding of steel plates less than 1 inch thick, owing to the higher conductivity of the flux.
Patent GB-399476-A (GB)
Title: Improvements in or relating to means for resisting the passage of high frequency electrical impulses through electric power transmission wires
IPC: H03H1/00
Filed: 1932-03-31
Abstract: 399,476. Protective arrangements. JARVIS, M. H., Elthorne, Nightingale Road, Wendover, Buckinghamshire. March 31, 1932, No. 9301. [Class 38 (iv).] To prevent interference with the reception of wireless transmission resulting from high frequency disturbances in a power supply cable, inductance coils are connected in the cable leads and these are magnetically coupled and connected so as to have a low impedance to low frequency currents and a high impedance to high frequency currents. In the form shown in Fig. 1, inductances 15, 16 are connected in the power supply leads 11, 12 the connection being such that they are non- inductive to low-frequency currents but highly inductive to high frequency currents, the direction of flow of which is shown by arrows. The input and output ends are spaced apart to avoid capacity coupling. In addition the input and output leads may be electrostatically screened. Reference has been directed by the Comptroller to Specifications 323,477, [Class 38 (iv), Electric supply and transmission systems &c.], and 382,809.
Patent GB-1180275-A (GB)
Title: System for Remotely Positioning a Controlled Body
Inventor: YADA TOSHIHALU
IPC: G05D3/14
Filed: 1967-02-27
Abstract: 1,180,275. Transistor switching circuits. SHIMADZU SEISAKUSHO Ltd. 27 Feb., 1967, No. 9302/67. Heading H3T. [Also in Divisions G1 and H2] In an automatically balanced potentiometric system, the signal e p  (Fig. 4), derived from the slider of a potentiometer 16, is compared with a control signal e s , and the difference e is used to fire one of a pair of silicon-controlled rectifiers 57, 58 to energize a relay 61 or 62, whereby a motor reduces the difference signal e to zero. The error voltage e is fed to a pair of transistors 38, 40 connected as a flip-flop circuit, each collector being connected to the gate of a corresponding S.C.R. 57 or 58. The bias on the rectifiers is manually adjustable at potentiometer 66 to determine the minimum value of e at which they fire, thereby producing an adjustable dead zone.