baber/WOPTO huggingface dataset:
Patent GB-557245-A (GB)
Title: Improvements relating to electric circuit breakers of the free-handle type
IPC: H01H71/50
Filed: 1942-05-26
Abstract: 557,245. Automatic circuit-breakers. DRAKE & GORHAM, Ltd., and NEWELL, J. May 26, 1942, No. 7113. [Class 38 (v)] The manually-actuated shaft 10 of a freehandle circuit breaker is connected to the contact-operating arm 2, pivoted at 3, by means of a lever 9 and links 4, 5 forming a compound toggle system, which is normally retained in the arched position shown by a holding link 11 pivoted at 12 to a lever 13 rotatable on pivot 3. A roller 16 on lever 13 engages a recess in a retaining lever 14 pivoted at 15, which lever is in turn engaged by a trip lever 20 pivoted at 21 and having arms 22 and 23, 24 engageable, respectively, by an electromagnet trip device and teeth 25 on the lever 10 for manual tripping by backward movement of the latter. When the electromagnetic trip operates, link 11 moves to tne left and carries pivot 6 over the line of centres 8, 10 so that lever 9 rotates clockwise through 90 degrees. The opening movement of arm 2 from position c is arrested at position o so that toggle links 4, 5 again move to the relative positions shown and cause the latch system to reset, so that when the handle is rotated to reclose, the lever 9 and link 5 resume the overset position as determined by adjustable stop 26.
Patent GB-253974-A (GB)
Title: Improvements in or relating to electric hand irons and other electrically-heated appliances
IPC: D06F75/26
Filed: 1925-03-17
Abstract: 253,974. Bailey, P. H. H. March 17, 1925. Drawings to Specification. Heating by electricity.-An electrically heated appliance is fitted with an audible or visual signal controlled by the current. An iron is fitted with a buzzer mounted thereon and arranged in a shunt circuit to the heating resistance. Reference has been directed by the Comptroller to Specifications 1562/13, 26462/13, 167,860, and 171,850.
Patent GB-552871-A (GB)
Title: Improved means for controlling roof openings for ventilation purposes
IPC: F24F7/02
Filed: 1942-05-28
Abstract: 552,871. Roof ventilators. GELDER, R. May 28, 1942, No. 7213. [Class 137] A sloping roof has fixed sections 1, 2 and movable sections 3 spaced from the fixed sections and slidable on the roof and interconnected by a cable 5 running over a pulley 6 so that when one section is moved up, the other is lowered to uncover the openings over which they are normally disposed. One movable section is provided with wind deflectors 10a, 10b, and the fixed sections adjacent the other movable section has similar deflectors which create an extractor effect between the overlapping and spaced portions of the sections, to withdraw air from the interior. The movable sections are manipulated by cables 7 running over a pulley 8. The apex of the roof is provided with a raised portion 11 for ventilation and weather proofing. With the movable sections in position covering their openings the deflectors act as light screens. By suitable modifications the device may be applied to a single roof of the lean-to type.
Patent GB-724969-A (GB)
Title: Flush hinge
IPC: E05D3/06
Filed: 1953-03-16
Abstract: 724,969. Hinges. HARTWELL, C., and HARTWELL, E. M., [trading as HARTWELL AVIATION SUPPLY CO.]. March 16, 1953 [Dec. 15, 1952], No. 7223/53. Class 65 (2). A hinge comprises a member 1 having an arcuate portion provided with arcuate slots 5, a member 6 having an arcuate portion adapted to ride on the arcuate portion of the first member and also having looped portions 9 extending through the slots, and a pin 10 connecting the looped portions together. Member 1 has an outwardly directed flange 2 secured to a frame F, and an inwardly directed flange 3 defining a loop 4 into which the slots extend. Member 6 has an outwardly directed flange 7 secured to a door D. Movement of member 6 from the closed position of the door takes place about the radius of curvature of the arcuate portions till the pin lodges in the loop 4 to permit further turning of member 6 about the axis of the pin. Loop 4 is formed with external cam elements 11 which co-operate with tongues 8 at the free end of member 6 to retain the door in the fully open position. Springs 14 coiled around the pin in the spaces between loops 9 have respective ends abutting member 6 and an offset end 17 of flange 3. The springs, by co-operation with the end 17, serve to bias the pin to one or the other end of the slots. Member 1 is provided with arcuate ridges 12 which engage corresponding arcuate channels 13 provided on member 6.
Patent GB-1452381-A (GB)
Title: Winch arrangement
IPC: B66D1/74
Filed: 1974-02-18
Abstract: 1452381 Constant tension devices WESER AG 18 Feb 1974 [17 Feb 1973] 7263/74 Heading B8B A winch arrangement comprises a rope or cable 3 which passes over drive pulleys 1, 2 of a friction winch on to the storage drum 12 of a storage winch, and a control device for controlling the tension in the rope 3, the control device including a roller 11 which is freely rotatable on a shaft 13 which has at both ends a journal 14, 15 arranged eccentrically of its axis, the journals being mounted in stationary bearings. An hydraulic motor 16 is connected to the journal 15 and is controlled by a servovalve 17 which is adjusted by means of a rope tension controller (18) which receives pulses from both a nominal value transmitter (19) for the desired rope tension and a rope tension measuring device (20) which records the actual tension in the rope (3), Fig. 2 (not shown), so that deviations of the rope tension from the desired value produces rotation of the shaft 13 about the common axis of the journals 14. 15.
Patent GB-736043-A (GB)
Title: Improvements in means for supplying anti-detonant to the induction systems of internal-combustion engines
IPC: F02M25/14
Filed: 1953-03-17
Abstract: 736,043. Treating charge. RIDLEY, J. C., and SAXTON, S. A. March 5, 1954 [March 17, 1953], No. 7283/53. Class 7(2). In a device for supplying a pre-determined quantity of anti-detonant, such as water, or water and methanol or other material which will depress the freezing point of the water and participate in combustion, to an engine induction pipe 47 to reduce pinking and deposition of carbon and to cool the engine and ensure fuel economy, comprising an inlet 15 for the anti-detonant, a manually-adjustable needle valve 22 controlling the inlet, an outlet duct 45 connected to the pipe 47, a diaphragm chamber 12 connected to the duct 45, a diaphragm 13 carrying a spring-loaded valve member 31 having an axial passage 35 and the valve member 31 being opened to establish a channel from the valve 22 to the duct 45 when sub-atmospheric pressure exists in the latter, the passage 35 incorporates a port 34 which is concurrently opened to admit atmospheric air through an opening 56 to the passage 35 wherein it mixes with the anti-detonant flowing therethrough to the duct 45. The anti-detonant enters the inlet 15, passes into an annulus 53, and flows through radial ports 54 to a second annulus 55 round a reduced part of the needle valve 22, which, when it its opened by rotating a handle 24, makes the liquid available at the valve 31. After passing the valve 31 the anti-detonant enters an annulus 58 and traverses radial ports 59 into the passage 35 ; the air in the latter forms an emulsion with the anti-detonant that enters a member 46, located down-stream of the throttle valve 48, due to the air in the pipe 47 acting ejectorwise on an orifice 52 whilst a smaller orifice 51 admits air that maintains the emulsion or initiates it if, due to the engine having been shut down, the member 46 is filled with anti-detonant. The handle 24 can be turned to any desired extent and is provided with a pointer co-operating with a scale.
Patent GB-1435504-A (GB)
Title: Cigarette filter
IPC: A24D3/16
Filed: 1972-02-17
Abstract: 1435504 Smoke filter N WALD 17 May 1973 [17 Feb 1972] 7395/72 Headings A2C and A2M  A filter for tobacco or tobacco substitute smoke includes means for removing part of the carbon monoxide content from smoke passing therethrough by the catalytic oxidation of CO to CO 2 , there being provided a desiccant, to protect the catalyst from wafer and water vapour. Preferably the CO is oxidised to CO 2  using hopcalite a 60/40 mixture of MnO 2  and CuO. The catalyst may have a surface area in excess of 150 m<SP>2</SP>/g and a particle size of 0.8 to 1.6 mm. The desiccant usually precedes the catalyst layer and thereby prevents the passage of water vapour through it. The desiccant may be SiO 2  or LiBr on a charcoal base. The catalyst may be incorporated in or on a fibrous material e.g. cellulose and may form part of a cigarette, cigar, pipe or cigarette holder.
Patent GB-472117-A (GB)
Title: Improvements in or relating to refrigerators
IPC: E03D1/18
Filed: 1936-03-11
Abstract: 472,117. Refrigerators. WALB & CO. ZWEIGNIEDERLASSUNG DER GES. FUR LINDE'S EISMASCHINEN AKT. - GES.. G. H. March 11, 1936, No. 7400. Convention date, March 11, 1935. [Class 29] A method of cooling material in a refrigerator consists in precooling it either with a known type of refrigerating machine or water ice and effecting further cooling by dry ice. The material may be cooled in the inner of two spaced chambers of heat-insulating material, the inner of which may be up to ten times as thick as the outer, between which is disposed a refrigerating coil e. A dry ice box c having insulated and uninsulated ice compartments may be placed in the inner chamber, the cover d of which is formed of spaced sheets of metal foil. In use, the cover and the ice box are removed from the inner chamber and the material placed therein, whereupon the material and the space between the chambers are cooled by the coil e to, e.g. -10‹ C. at which point the dry ice box is inserted in the inner chamber and the cover replaced. Leakage of heat into the inner chamber is prevented by the coil e. In a modification, the precooling is effected by ice packed into tubes in the space between the chambers. In another arrangement, the dry ice is contained in a tube h, Fig. 3, inserted through the sides of the refrigerator, one portion of the ice being enclosed in a heatinsulated cylinder k.
Patent GB-698440-A (GB)
Title: Heated cathode electron multiplier
IPC: H01J43/16
Filed: 1951-03-30
Abstract: 698,440. Electric discharge tubes. STANDARD TELEPHONES & CABLES, Ltd. March 30, 1951 [June 19, 1950], No. 7415/51. Class 39(i) An electric discharge tube comprises a secondary electron emissive target, a collector electrode and a heated primary electron emissive cathode comprising a heated tantalum base coated with an electron emissive oxide. The secondary electron emissive target electrode comprises a surface of silvermagnesium alloy and oxides thereof. The collector electrode may consist of a wire grid preferably of a refractory metal such as tantalum. The tube may include a control grid or beam deflection means. The discharge tube 1 shown in Fig. 1 comprises the cathode 2, the target electrode 3, a control grid 4 and a collector electrode 5 arranged coaxially. Supporting discs of mica are shown at 11. Heater leads for the cathode are shown at 6 and leads for applying operating potentials at 7, 8, 9 and 10. The cathode 2 comprises a tantalum sleeve 12 carrying an emitting oxide coating 13. The collector electrode 5 is in the form of an open cage or grid of wires which will permit the passage of high velocity electrons from the cathode to the secondary emitting electrode. Normally the secondary emitting target electrode is maintained positive with respect to the cathode and the collector electrode is maintained at a higher positive potential. It is stated that the secondary electron to primary electron ratio is three or more which is maintained for a long period.
Patent GB-890207-A (GB)
Title: Extraction of a new polysaccharide substance from crude fucoidin
IPC: C08B37/12
Filed: 1958-03-07
Abstract: The invention comprises a polysaccharide comprising a fucosemethylpentose ether sulphate polymer having a molecular weight of about 5,000 to about 50,000, a specific rotation of [a ]25D = -119,6 DEG  in water, having in aqueous solution of 0,8% strength an ultra-violet absorption of very weak character in the range 256-280mm and being devoid of additional absorption maxima at 220-600 mm , having in 0,85 saline solution a relative viscosity of 1,2 being amorphous in character, containing the elements carbon, hydrogen, oxygen, sulphur, sodium, potassium and calcium, and being soluble in water.  The novel polysaccharide is obtained by fractional precipitation of an aqueous solution of crude fucoidin by means of a water-miscible organic solvent and collecting the polysaccharide precipitated as the concentration of the solvent in the solution is increased from about 45% to about 67%, or by treating the said aqueous solution with a quaternary ammonium compound, preferably one containing a carbon chain of 8 carbon atoms or more, collecting the water-insoluble precipitate, breaking up the obtained quaternary ammonium-polysaccharide complex by the addition of a strongly ionizable salt and collecting the polysaccharide from the obtained solution with a water-miscible organic solvent.  Both the fractional precipitation method and the quaternary ammonium complex formation may be used.  The new polysaccharide may be further purified by dialysis.  The product possesses anticoagulant and antilipemic activity.  An example also describes the extraction of crude fucoidin from ground, air-dried Fucus vesiculosus by heating with water, adding toluene, diluting and filtering the supernatant fluid, adding lead acetate solution and filtering, adding barium hydroxide to the filtrate, shaking the resultant precipitate with sulphuric acid, and dialysing for 3 days.  The non-dialysable material is concentrated in vacuo, freed of insoluble material by spinning at 12,000 g. for 45 minutes, the supernatant is poured into ethanol and dried in vacuo over P2O5.  The material is designated as crude fucoidin.ALSO:A new polysaccharide comprising a fucosemethylpentose ether sulphate polymer (obtained from crude fucoidin, see Group IV (a)) having anticoagulant and antilipemic properties, may be dispersed in any of the usual dosage unit forms of pharmaceutical preparations, for example, tablets, pills, capsules, solutions, powders, with any desired excipients, binders, fillers or other therapeutically inert ingredients.  For parenteral administration, the polysaccharide may be dissolved in any suitable liquid medium which is compatible with body fluids, e.g. physiological saline solution.  For oral administration, the polysaccharide may be employed with or without other physiological active ingredients in tablets, pills or capsules.
Patent GB-1509983-A (GB)
Title: Apparatus for winding a textile thread around a resilient filament
IPC: D02G3/32
Filed: 1976-02-25
Abstract: 1509983 Knitting; yarns BREVITEX ETAB POUR L'EXPLOITATION DES BREVETS TEXTILES 25 Feb 1976 [27 Feb 1975] 07496/76 Headings D1C D1K and D1W [Also in Division B8] A rotary spindle 6 has a groove in which a single knitting needle is reciprocated by a stationary cam 3 engaging a butt 14 thereon, a resilient e.g. rubber filament 10 being advanced through a bore 9 in spindle 6 and a textile thread 16 being fed to the needle so that it is wound round filament 10 and knitted once on each rotation of the spindle thus producing a covered yarn. A series of these assemblies may be fed with filaments 10 from a beam.
Patent GB-530371-A (GB)
Title: Improvements in high vacuum unobstructed path distillation
IPC: B01D3/12
Filed: 1939-03-09
Abstract: 530,371. High-vacuum distillation. DISTILLATION PRODUCTS, Inc. March 9, 1939, No. 7581. Convention date, March 9, 1938. [Class 32] In apparatus for high - vacuum distillation, a plurality of perforated condensing surfaces are arranged consecutively in relation to a single distilling surface as shown, distilland such as degassed cod - liver oil, is introduced through a conduit to flow d o w n the column 18, heated by electrical means. The space within the casing 4 is evacuated by a high-vacuum pump. Volatile materials and gases are evolved. Condenser elements 50 and 52, cooled by a fluid flowing through conduits 36, 54, are spaced so that the vaporized molecules are condensed thereon while the residual gases escape outwards. Undistilled residue and condensate fractions are collected in gutters 20, 34, 53 and are withdrawn through conduits 43, 41, 42 ; condensing surfaces made up of strips of wire gauze may be employed. The Specification as open to inspection under Sect. 91 includes the matter described in Specification 15903/40 (as open to inspection under Sect. 91) and describes a modification including only one condensing surface; also the use of perforated evaporating surfaces. This subjectmatter does not appear in the Specification as accepted.
Patent GB-550073-A (GB)
Title: Improvements in or relating to rubber-coated textile fabrics
IPC: D06M15/693
Filed: 1941-06-18
Abstract: 550,073. Coated fabrics. LATEX INDUSTRIES, Ltd.. and LANDAU, L. June 18, 1941. No. 7725. [Class 140] A process for coating fabric with rubber or rubber-like materials comprises first applying a rubber dispersion or solution to an auxiliary non-porous surface, e.g. of stainless steel, synthetic resin, paper or fabric impregnated with synthetic resin or glass to form a film of predetermined thickness, applying thereto the fabric, removing the dispersion medium, e.g. by evaporation and finally stripping the rubber coated fabric from the surface. Tne auxiliary surface may be an endless band. A water spray may be applied to the fabric after drying to facilitate stripping. The thickness of the film applied to the auxiliary surface is such that sufficient liquid is present to give good adhesion, but without penetrating to the moist surface of the fabric. The rubber dispersion may contain a thickening agent, e.g. karaya gum, bentonite, sodium silicate or sodium alginate. The thickness of the film may be controlled by an adjustable doctor knife or a serrated squeegee. Alternatively the auxiliary surface may be provided with depressions and a straight squeegee used. Rubberized fabric gloves may be made from the product by placing the gloves on a porcelain former, dipping in a rubber dispersion, coagulating the rubber, e.g. by drying and repeating the process until the required thickness of rubber is obtained.
Patent GB-800885-A (GB)
Title: Improvements in or relating to vices
Inventor: PEARCE HAROLD EDWARD
IPC: B25B1/12
Filed: 1956-03-13
Abstract: 800,885. Vices with quick release. STEEL NUT & J. HAMPTON, Ltd. March 13, 1957 [March 13, 1956], No. 7773/56. Class 61. A hand operated sliding-jaw vice has a quick release mechanism that is actuated by a small unscrewing motion of its main screw spindle 19 ; this motion rotates a one-way clutch assembly 34-36 carrying a finger 42 which turns a blade 30 to disengage a half-nut 26 from the threads of the spindle 19. The vice comprises a body 10 carrying a fixed jaw 12 and a sliding jaw 13 in which the spindle 19 is housed rotatably but secured against end-motion. The sliding jaw is carried on the forward ends of two spaced parallel bars 14 which are slidably guided in two bores (not shown) in the body 10 and which have their rear ends connected by a bar 18 that also provides a bearing for the other end of the spindle. The half-nut 26 is anchored against axial movement by lugs 27 but can be moved vertically relative to the spindle, for which purpose it has a tail portion 28 that engages with the blade 30. The sleeves 34 and 36 are slidably and rotatably mounted on the spindle and the sleeve 36 transmits rotation to the sleeve 34 in the unscrewing sense only through dog teeth 35. The outer end of the sleeve 36 has two opposed square dog teeth 37 engaging the projecting ends of a pin 38 which passes through the spindle 19, thereby providing one third of a turn free movement between the spindle and the sleeves. A spring 39 urges the spring assembly into close contact with the pin 38 and the sleeve 36 comes the finger 42 which co-operates with a lever 33 on the blade 30. Rotation of the blade 30 against a coil spring 32 withdraws the half-nut from the spindle and frees the moving jaw of the vice for quick adjustment. On release of the lever 33 the spring 32 counter rotates the blade and maintains the half-nut in contact with the spindle.
Patent GB-640113-A (GB)
Title: Recording apparatus
IPC: G01D15/34
Filed: 1948-03-15
Abstract: 640,113. Recording-apparatus. FOXBORO CO. March 15, 1948, No. 7774. Convention date, March 13, 1947. [Class 106 (iv)] A record chart has a central alignment opening and is marked with a plurality of calibrated circles concentrically arranged about the opening and having a series of regularly disposed blank spaces interrupting the continuity of each of the circles, the spaces being oriented to give an optical illusion of symmetrically disposed lines extending generally radially from the opening. A chart 28 is held by a hub 26 on a driving spindle driven counter-clockwise at constant speed by mechanism 22 and co-operates with pens 46 and 48 on arms 38 and 44 pivoted about an axis A-A in a bearing assembly 49. The pen arm 38 moves with a crank arm 36 linked to an arm 35 on a shaft 30 whose movements reflect changes of differential pressure in a flow meter and the pen arm 44 moves with a crank arm 42 linked to an arm 41 on the free end of a Bourdon element 32 supplied through tubing 52 with fluid pressures corresponding to the static pressure. The chart is marked with a series of concentric circles calibrated for static and differential pressures and the continuity of the circles is interrupted regularly by a series of short spaces oriented throughout the circles to give an optical illusion of arcuate time lines with which the arcuate path of the pens 46, 48 co-incides as the chart rotates.
Patent GB-268126-A (GB)
Title: Dazzle reducing apparatus for head lamps of motor vehicles
IPC: F21V14/08
Filed: 1926-03-20
Abstract: 268,126. Collins, C. M. March 20, 1926. Lantern gratings. -An anti - dazzle device for a vehicle lamp comprises two or more spaced coaxial wind-driven propellers, adjacent propellers rotating in opposite directions. Each propeller comprises a boss 1 with vanes 2 and is carried by a spindle 3 mounted in front of a lamp 6 by means of a member 4 having eyes 5 engagable over the pins of a lamp bracket. There may be gaps or translucent sections between the vanes. The Provisional Specification states that a single propeller may be employed.
Patent GB-436430-A (GB)
Title: Improvements in and relating to the manufacture of abrasive wheels
IPC: B24D18/00
Filed: 1935-03-13
Abstract: 436,430. Grinding-wheels. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. March 13, 1935, No. 7814. Convention date, March 17, 1934. [Class 60] [See also Group V] A grinding-wheel comprises a core 5 of molybdenum, or other metal, to which is welded or brazed an abrasive annulus consisting of diamond particles embedded in a cemented carbide composition. The wheel is produced in a mould consisting of carbon blocks 1, 2 shaped to form a cylindrical recess surrounding a carbon block 3, upon which is placed a molybdenum, &c. disc 5 positioned by an extension 8 of a carbon plug 7, the extension passing through a central opening in the disc. The space around the disc is filled with a finely-divided mixture of diamond, cobalt, and tungsten carbide, and pressure is applied by means of a hollow plunger 4 of carbon or of molybdenum with an interposed ring 14 of carbon, the mould being heated to the sintering temperature of the mixture by means of an electric current applied by water-cooled electrodes 10, 11 ; the mixture becomes welded to the disc 5 simultaneously with the sintering. In a modification, for small discs, the core 17 is of the hollow cylindrical shape shown in Fig. 5. The proportion of diamond may be from 10 per cent to 20 per cent by weight of the composition, and the carbide composition may comprise from 3 per cent to 10 per cent of cobalt, the remainder being tungsten carbide, or other compositions may be used. The annulus may be formed separately and brazed to the disc 5. Specifications 349,732 ; 364,718, [Group II], and 419,126 are referred to.