baber/WOPTO huggingface dataset:
Patent GB-1188242-A (GB)
Title: Safety Razor
IPC: B26B21/26
Filed: 1968-05-15
Abstract: 1,188,242. Razors. GILLETTE CO. 15 May, 1968 [16 May, 1967], No. 23097/68. Heading B4B. In a safety razor having a blade support platform and a blade guard structure, the latter extending in generally parallel spaced relation to the front edge of the blade support platform, the blade guard structure includes a flexible portion having a first position of predetermined spacing from the front edge of the blade support platform when the razor is not in use so that the edge of a sharpened blade disposed on the platform has a first exposure, and a range of dynamic second and further positions closer to the front edge of the platform than the first position, the range including a dynamic position in which the blade exposure is double the first exposure, the flexible portion being sufficiently resilient to move from the first position along a path generally parallel to the plane of the blade to any of the dynamic positions under the corresponding influence of the force with which the razor is pressed against the user's face during a shaving stroke and to return to the first position upon completion of the shaving stroke. Preferably, the first exposure is less than 0À003 inch, and the flexible portion of the guard structure has a thickness in the plane of the blade of the order of 0À05 inch. The guard structure and the platform may be a single unit of synthetic organic polymeric material. The shaving geometry dynamic characteristic, e.g. exposure or tangent angle, is substantially linear as a function of pressure over the range of dynamic positions. In one form, a ribbon type razor comprises a blade support platform 42, Fig. 3, and hold-down elements 44. Below and forwardly of the platform 42 is a guard 60 having end portions 62, 64 integral with base 34. Stop member 66 protrudes from guard 60 towards a surface 46. In another form, the razor comprises handle 100, Fig. 5, blade support member 102 and cap 104. Member 102 has exposed on each side of the body 120 thereof a guard bar 122 which is secured to the body by webs 124 which extend from the body. Located equidistantly from the webs 124 is a stop 126.
Patent GB-480284-A (GB)
Title: Improvements in the manufacture and production of vat dyestuffs of the dibenzanthrone series
IPC: C09B3/30
Filed: 1936-08-22
Abstract: Vat dyes are made reacting halides of aromatic acids with dihydroxydibenzanthrones or dihydroxyisodibenzanthrones or their alkyl ethers or acyl esters or a dibenzanthrone-b z2.b z21-quinone in the presence of iron or anhydrous iron halides.  The reaction is usually carried out at about 150 DEG  C., preferably in presence of a diluent such as di- or tri-chlorbenzene.  Mixtures of compounds containing one and two aroyl radicles may be separated by solution in organic solvents such as trichlorbenzene.  In examples, b z2.b z21-dihydroxydibenzanthrone is heated with (1) benzoyl chloride and iron powder in trichlorbenzene (green-blue shades on cotton); (2) 2.4-dichlorbenzoyl chloride and ferric chloride (blue); (3) 1 - chloranthraquinone - 2 - carboxylic acid chloride, trichlorbenzene and ferric chloride (green-blue); in (2) the dihydroxydibenzanthrone may be replaced by dibenzanthrone-b z2.b z21-quinone; (4) the dimethyl ether of b z2.b z21-dihydroxydibenzanthrone is heated with benzoyl chloride, trichlorbenzene, and ferric chloride (green-blue); (5) the dihydroxyisodibenzanthrone prepared according to German Specification 468,957 is heated with 2.4-dichlorbenzoyl chloride, ferric chloride, and trichlorbenzene (blue-violet).  Samples have been furnished under Sect. 2 (5) of products obtained by heating the 2.4-dichlorbenzoyl esters of b z2.b z21-dihydroxydibenzanthrone and of the dihydroxyisodibenzanthrone of (5) above with 2.4-dichlorbenzoyl chloride in presence of anhydrous ferric chloride. The 2.4-dichlorbenzoyl esters of b z2.b z21-dihydroxydibenzanthrone and of the above referred to dihydroxyisodibenzanthrone are prepared by heating the parent bodies with 2.4-dichlorbenzoyl chloride. Specification 14498/12, [Class 2 (iii)], is referred to.
Patent GB-685238-A (GB)
Title: Improved device for measuring the thickness of wet coatings
Inventor: SCOTT ROLAND
IPC: G01B5/06
Filed: 1950-09-21
Abstract: 685,238. Gauges. MIDLAND TAR DISTILLERS, Ltd. Sept. 21, 1951 [Sept. 21, 1950], No. 23193/50. Class 106 (ii). A gauge for measuring the thickness of liquid coatings, such as tar, on a road surface, comprises a drum 2 with two concentric flanges 4 and between the flanges a series of pegs 6 with tips which lie at different distances beneath an imaginary cylindrical surface joining the circumferences of the flanges. To measure the thickness of the coating material the drum is rolled over the surface by means of the handle 8. The flanges penetrate the coating and rest on the surface beneath, the peg which is just wetted by the coating material indicates the depth of the material and may be calibrated in square yards per gallon of material. The gauge is rolled in two directions at right angles and the average figure of the two readings is taken.
Patent GB-807514-A (GB)
Title: Method of regulating refining in converters
IPC: C21C5/30
Filed: 1955-08-12
Abstract: A method of controlling the refining in a converter comprises measuring the temperature during the whole or part of the conversion continuously or intermittently and adding solid or gaseous reagents in accordance with such temperature measurements and in such manner that the bath temperature maintains concordance with a predetermined curve.  If the temperature measurements are made intermittently they should be at short intervals.  The temperature measurements may be made by the method and apparatus of Specification 778,638 and use may be made of the two colour optical pyrometer of French patent Specification 1,036,996.  If the temperature-time curve rises above the standand curve cooling reagents are added, e.g. scrap, or lime or an endothermically dissociating gas, and if the curve falls below the standard additional oxygen may be introduced into the blow. The curve may be temperature or time or the amount of air or oxygen blown.
Patent GB-360435-A (GB)
Title: Improvements in or relating to reducing valves
IPC: G05D16/10
Filed: 1930-08-02
Abstract: 360,435. Pressure-reducing valves. COOK, J. L., 12, Avoca Road, Upper Tooting, and MARSHALL, S. H., 14, Victoria Street, both in London. Aug. 2, 1930, No. 23324. [Class 135.] In pressure-reducing valves for ironing-machines &c. of the type having a piston of two different diameters and a longitudinal bore, means are provided for regulating leakage from the annular space 21 below the shoulder of the piston into the outer air. The means consists of a screw plug 23 having a right-angled bore 25. The part 7 of the piston is a slack fit in its bearing so that a small leakage of pressure fluid takes place into the space 21.
Patent GB-480700-A (GB)
Title: Improvements in or relating to self-closing stop valves
IPC: F16K17/32
Filed: 1936-08-26
Abstract: 480,700. Fluid - pressure servomotor - control systems. COCKBURNS, Ltd., and MACNICOLL, M., and MACNICOLL, M., [Representatives of MACNICOLL, D.]. Aug. 26,1936, No. 23387. [Class 135] A self-closing stop valve comprises a main valve 1, Fig. 1, closed by the fluid pressure on the side 2b of a preferably leaky piston 2 when the pressure on the other side is released under the control of a pair of valve elements actuated by a pressure drop on either side of the main valve. The control valve elements consist of a pair of needle valves 4, 5, Fig. 3, mounted coaxially in a piston 6 and pressed apart by a spring 12. The piston 6 is subject at its two ends respectively to the pressures, transmitted by ducts 17, on the two sides of the main valve, and in the event of a drop in either pressure, moves to open the chamber 10 of the corresponding valve 4 or 5 to atmosphere, both chambers 10 being connected to the underside of the main piston 2. Hand-operated stop valves are provided in the ducts 17. The main piston 2 is cushioned at the end of its downward movement, by coacting annular flanges and recesses on the piston and the cylinder end as described in Specification 480,742. The valve spindle 22, when the valve is fully opened by the hand wheel 29, is freed for the automatic closure.
Patent GB-536640-A (GB)
Title: Improvements in frames for motor road vehicles
IPC: B62D21/00
Filed: 1939-08-14
Abstract: 536,640. Uniting by fusion. ZAVODY RINGHOFFERTATRA AKCIOVA SPOLECNOST. Aug. 14, 1939, No. 23413. Convention date, Sept. 1, 1938. [Class 83 (iv)] [Also in Group XXXI] The central frame member of a vehicle is formed from a number of channel section members, some 1 bent into U-shape, some 2 ,4 bent to an angular shape, and the remainder 3, 5 bent to V-shape, the meeting edges of all the channels being welded together to form a single frame member each part of which has a closed box section. The number of members 1 depends on the number of transverse bearers B, C, D. Plates 6 cover the openings at the centres of the bearers.
Patent GB-234526-A (GB)
Abstract: 234,526. Luginbuhl, G. R. May 26, 1924, [Convention date]. Guide-books; indexing.-A railway guide-book is provided in its interior with a double page index located from the front of the book by an index notch 1, and bearing on all its edges notches 3, 4 for locating pages bearing information for places indicated along lines radiating from a place centre to the notches.
Patent GB-1545024-A (GB)
Title: Diagnostic kit
IPC: A61K33/24
Filed: 1977-06-02
Abstract: Colloid-forming kit which can be used for medical diagnosis and has two separate containers, one of which contains a freeze-dried tin(II) phytate complex and the other contains a buffered aqueous solution of calcium chloride. The kit is suitable for preparing an injectable aqueous colloid of technetium-99m-calcium phytate for visualising the liver, the spleen and the bone marrow.
Patent GB-169363-A (GB)
Title: Folding bed
IPC: A47C17/82
Filed: 1920-08-11
Abstract: 169,363. Coady, T. J. Aug. 11, 1920. Folding and cabinet bedsteads.-In a cabinet bedstead, the folding framework is made in four equal hinged sections, the sections 1, 2 folding into the case A<1>, and the sections 3, 4 folding into the case A<5>, the member B<3> abutting against the member B<1>. A wire mattress may be provided, having cross-members for attachment to the parts B, B'.
Patent GB-814993-A (GB)
Title: Improved vehicle braking system
Inventor: BUTLER HENRY JAMES
IPC: G05G7/14
Filed: 1956-07-31
Abstract: 814,993. Fluid pressure brakes. DUNLOP RUBBER CO. Ltd. July 17, 1957 [July 31, 1956], No. 23541/56. Class 103 (1). An hydraulic braking system for a vehicle comprises brakes, a single pedal or the like operated master cylinder connected to all the brakes, and an inertia mass mechanically coupled to the pedal or the like and movable in the same direction as the pedal or the like on deceleration of the vehicle to augment the load applied to the pedal or the like and increase the hydraulic pressure uniformly in the system. The driver's seat 5, master cylinder 1 and pedal lever 10 are mounted on a strut 3 mounted on rollers 6, 7 secured to the vehicle. Pressure on pedal 11 operates the master cylinder to apply the brakes and on deceleration the inertia of seat 5 and the driver causes strut 3 to move forwards, the end 8 of lever 10 pivoting on a fixed stop 9 to further rotate lever 10 to augment the pedal pressure; the inclination of end 4 of strut 3 and springs, not shown, which may be inherent in the system, return the seat and strut to their normal position on brake release. In Fig. 2, not shown, a weight on an extension of the lever 10, replaces the seat, as an inertia mass, and moves in a vertical plane whilst a similar weight in Fig. 3, not shown, moves in a horizontal plane.
Patent GB-758093-A (GB)
Title: Fluxes for welding and brazing light alloys
IPC: B23K35/36
Filed: 1953-08-26
Abstract: A range of flux compositions for welding Al, the weldable Al-base alloys, including Al-Mg alloys containing up to 10 per cent Mg, and the Mg-base alloys, and for brazing Al, the brazable Al-base alloys and Al-Mg alloys containing up to 5,5 per cent Mg, consists of KCl 4-9,5 per cent, NaCl 0-10 per cent, LiCl 15-50 per cent, ZnCO3 0-20 per cent, cryolite 20-50 per cent and CaF2 10-20 per cent.  Examples of preferred flux compositions for certain of the operations stated above are given.
Patent GB-1101249-A (GB)
Title: Fire-proofing of lignocellulosic material
IPC: B27N3/00
Filed: 1966-05-26
Abstract: Lignocellulosic material is brominated in a two-stage process involving first impregnating with one or more reactants under non or partial-brominating conditions and then impregnating with further reactant(s), or adjusting the conditions, to effect complete bromination.  The material may be subsequently treated with a known flame-proofing agent, e.g. a borate.  The reactants may include a bromide (or bromine which forms bromide by partial bromination), an oxidizing agent, and an acid.  When all the reactants are employed in the first stage, reaction may be effected by application of heat or pressure or change of humidity.  Impregnation may be by a reduced pressure technique. Bromination may be followed by a neutralization step to remove remaining acid.  The lignocellulosic material may be in the form of wood, pulp, paper, straw or chip board, fabric, rope or belting.  Reference has been directed by the Comptroller to Specification 940,575.ALSO:Lignocellulosic material is brominated in a two-stage process involving first impregnating with one or more reactants under non- or partialbrominating conditions and then impregnating with further reactant(s), or adjusting the conditions, to effect complete bromination.  The reactants may include a bromide (or bromine which forms a bromide by partial bromination), an oxidizing agent, and an acid.  When all the reactants are employed in the first stage, reaction may be effected by application of heat or pressure or change of humidity.  Impregnation may be by a reduced pressure technique.  Bromination may be followed by a neutralization step to remove remaining acid.  The lignocellulosic material may be in the form of wood, pulp, paper, straw or chip board, fabric, rope, or belting.  Reference has been directed by the Comptroller to Specification 940575.
Patent GB-583752-A (GB)
Title: Improvements in or relating to electric frequency counting arrangements
IPC: G01S13/58
Filed: 1944-11-28
Abstract: 583,752. Frequency measurements. STANDARD TELEPHONES & CABLES, Ltd., and MORTLOCK, A. Nov. 28, 1944, No. 23732. [Class 37] In a frequency counter of the kind in which a current or voltage which varies as a known function of the frequency is derived by the periodic charging and discharging of a condenser 2, Fig. 2, at the frequency to be counted, the condenser 2 is connected in series with a bridge network containing oppositely poled rectifiers 3, 4 in adjacent arms and resistances 20, 21 in each of the other arms. The bridge is connected across a D.C. source at terminals 11, 12 but isolated therefrom by the condenser 2 and a further series connected condenser(s) 19. A switch, for example an electronic switch 1 normally blocked and biassed so as to conduct only during the positive alternations of the incoming waves whose frequency is to be determined, causes the condensers 2, 19 to charge over rectifier 3 during each blocking period and to discharge over rectifier 4 during each conducting period. A D.C. voltage proportional to the frequency is thereby developed across the resistors 20, 21 and may be taken from the bridge diagonal 22, 23, or from tappings on the resistors 20, 21 at terminals 17, 16. Resistors 14, 24 and condensers 15, 25 are included for smoothing. Since the counting network is isolated from the D.C. supply terminals 11, 12 a plurality of similar networks 30, 31, 32 ... Fig. 4 may be connected in parallel across the D.C. -supply their D.C. outputs being connected in series over resistors 33, 34 ... whereby the D.C. voltage output may be multiplied as desired. The D.C. voltage output instead of being directly proportional to the frequency being counted, may be made proportional to the logarithm thereof over various frequency ranges by shunting the rectifiers, Fig. 3 (not shown), by a resistance and condenser connected in series. The rectifiers may be dry-contact rectifiers, diodes or other electronic unilateral conducting devices. The valve 1 may be replaced by any other suitable type of switch, for example, at very low frequencies, an electro-magnetic relay. The resistors 20, 21 may be connected to terminal 11 through separate isolating condenser or a condenser network.
Patent GB-1146712-A (GB)
Title: Improved method of producing nitrogen-containing chromium-steel alloys
IPC: C23C8/26
Filed: 1966-05-27
Abstract: 1,146,712. Making alloy steel; powder metallurgy. MANNESMANN A. G. May 27, 1966 [June 2, 1965], No. 23854/66. Headings C7A, C7D and C7U. A chromium-containing steel alloy powder, or a compact produced therefrom by pressing or rolling, is heat-treated at sub-atmospheric pressure and a temperature above 1100C., preferably in the range 1150 - -1200C., and is then immediately annealed in a nitrogen-containing atmosphere at a temperature in the range 800 - 1100C. and preferably at atmospheric pressure. The powder or compact may then be compacted by rolling or pressing at 1000-1200C. to produce a high-nitrogen alloy. In a particular embodiment, an 18/8 steel having a stoichrometric ratio of carbon-oxygen were atomized by water under pressure, and the powder pressed into blocks at 2 metric tons per sq. cm. The blocks were annealed for eight hours at 1150C. at reduced pressure to remove carbon and oxygen, after which the furnace temperature was reduced and nitrogen introduced. After twenty minutes the blocks had a uniform nitrogen content of 8%; they were then heated in the nitrogen atmosphere to 1150 C. and extruded into tubes. In another example the following compositions were obtained by heating the steels in nitrogen for three hours at 950 C. %C % Si % Mn % Cr % Ni % N 0À12 1À52 0À38 18À0 9À9 2À3 0À11 1À55 0À26 12À1 - 1À6 0À15 1À68 0À61 17À3 - 2À5
Patent GB-1391363-A (GB)
Title: Breakout strip for cable harness
IPC: H01B7/00
Filed: 1972-05-22
Abstract: 1391363 Supporting conductors THOMAS & BETTS Ltd 10 May 1973 [22 May 1972] 23947/72 Heading H2C Oblique cuts 5 each lead from an edge 6 of a resilient strip 1 into a corresponding rectangular aperture 2, and a portion 7 at the side of each aperture is thus caused to form a resilient tongue which can be deflected in order to admit an individual conductor into the aperture for isolation as a branch when a cable harness is being assembled.
Patent GB-676068-A (GB)
Title: Improvements in or relating to measuring apparatus
IPC: G01L7/00
Filed: 1950-10-02
Abstract: 676,068. Electric indicating systems. SMOOT, C. H. Oct. 2, 1950. No. 24024/50. Class 40 (i). A variable to be measured produces a force which is balanced by an opposing force which is adjusted by an electric motor controlled by an electrical detector sensitive to force unbalance. The detector is connected with the motor in a continuous circuit in which negative feedback is introduced to prevent hunting of the motor by a tacho-generator driven by the motor. As shown, a diaphragm 10 responsive to the differential pressure of two fluid sources applied at 11 tends to rock a beam 12 clockwise in opposition to the torque produced on the adjustable end 19 of the beam. by a tension spring 17 acting through a bell-crank 18. Normally, in the beam balance position, an electrical pick-off device 27 produces zero output. When the pressure or other variable being measured alters, the armature 38 of the pick-off moves with the bell-crank 18 to produce an output which depends in magnitude and phase sense on the magnitude and sense of the alteration. This output is amplified at 26 and drives a two phase servomotor 21 in the appropriate sense to adjust the tension in the spring 17 through a cam 24 and a bell-crank 25 until balance is restored. Hunting is prevented by a tacho-generator 28 driven. by the motor which applies velocity feedback in the negative sense to the amplifier input. The magnitude of the variable is indicated by the displacement of the motor or the cam, and may be indicated by a meter 43 the current in which is determined by a potentiometer 41 driven by the motor, this current also being used, if desired, to regulate the variable. The pick-off may comprise an E type transformer 31, the primary 34, Fig. 3, of which is connected across a source 32. In the balance position, the voltage developed across the secondary 35 is balanced by the potential. of the adjustable arm 37 of a potentiometer 33 connected across the same source, giving zero output at 36. Movement of the armature 38 adjusts the coupling of the transformer coils. In a modified pick-off, Fig. 4 (not shown), a pair of variable inductances and a potentiometer form bridge arms across an A.C. source. The inductances are varied differentially by movement of the armature 38 and the output is taken from the bridge diagonal.
Patent GB-185030-A (GB)
Title: Vacuum tubes and method of making same
IPC: H01J19/30
Filed: 1921-09-09
Abstract: 185,030. Western Electric Co., Ltd., (Western Electric Co., Inc.). Sept. 9, 1921. Vacuum tubes.-One or more of the electrodes of a valve, preferably the grid or anode, or both, is provided with a black coating of nickel oxide to increase heat radiation. The coating may be produced by heating a nickel electrode in air or oxygen, in an electric furnace, to a temperature of 900‹ C. A coating of nickel oxide, or molybdenum oxide, or other semiinsulating substance on the grid prevents secondary emission of electrons therefrom, due to the presence of particles from the filament cathode. The coating may be removed from the anode over a part which lies in the path of the electron stream, by means of a jet of hydrogen or other reducing agent while the surface of the anode is heated, or by means of a blast of abrasive material.
Patent GB-824238-A (GB)
Title: Improvements in or relating to ozonisers
IPC: C01B13/11
Filed: 1958-07-25
Abstract: 824,238. Producing ozone. TRUB, H. July 25, 1958, No. 24115/58. Class 39(1). A plate-type ozonizer with dielectric plate 1 and perforated electrodes 2, 3 which are spaced apart at the edges and at the centre by spacing members 4, 5, 6, Fig. 1, or bulges 12 in the electrodes, Fig. 5, has clamping means at the edges consisting of resilient insulating members 13, Fig. 5. The members 13 extend inwards from outer frame members 10, and have a mechanical bias which tend to urge the electrodes together. The outer frame members 10 are seated in slots 20 in the housing 17. The electrodes are at least 0À7 mm. thick and are so mechanically pretensioned that they have in the free state the shape of a spherical dome or a section of a cylinder. The frame members 10 may be located relative to one another by bores and locating pins provided at the corners. Several ozonizing units may be assembled in the housing.
Patent GB-510575-A (GB)
Title: Improvements in rotary pumps
IPC: F04C2/344
Filed: 1938-08-18
Abstract: 510,575. Rotary engines. BREWER, C. E. Aug. 18, 1938, No. 24318. [Class 110 (ii)] [Also in Group XXVII] A rotary pump (which may be modified to act as an engine) comprises a concentric chamber h, a rotor c having a roller or sliding vane f, inlet port g, and end ports in the rotor which co-act with ports i in the casing end walls to lead fluid from a passage j in the rotor, to an outlet h. Where a sliding vane is used rollers may be placed in its tip, and bear against its sides. A compressor constructed as above, may be placed on the head of an internal-combustion engine l, and supply gas to the latter through ducts h which communicate with ports i. The exhaust gases pass. out through passages n, q, end ports p and ducts r. Two units may be combined, one forming the compressor and the other acting as a rotary engine. In a modification the rotor may have circular webs on its ends with slots which register with exhaust ports in the casing walls.