baber/WOPTO huggingface dataset:
Patent GB-568373-A (GB)
Title: Improvements in and relating to electrical circuit opening devices
IPC: H01H73/34
Filed: 1943-09-15
Abstract: 568,373. Electrically - released switches; actuation of switches ; protective cut-out systems. ELECTRIC TRANSMISSION, Ltd., and DANNENBERG, K. Sept. 15, 1943, No. 15131.. Addition to 563,849. [Class 38 (v)] According to one improvement on the invention of the parent Specification, there may be connected in series with the heating element a piece of high specific resistance material, such as tungsten or nickel wire, adapted to absorb some of the applied voltage and prevent ignition of the cartridge until a predetermined value of applied voltage is reached. This material, defined as . a voltage magnitude regulator, may be connected, as shown at 41, between the heating element 17 and current magnitude regulator 18, or, Fig. 2 (not shown), may constitute the sole connection between the element 17 and terminal 5a. The above cartridges, or the cartridges according to the parent Specification, may be adapted, when operated, to establish a shunt circuit about themselves. They may be connected in the earth-lead of an apparatus-frame so as to disconnect the apparatus from the supply if the leakage current is excessive, or they may be energized by the open-delta winding of a transformer, the primary of which is starconnected to a line supplying a motor, so as to respond to single phasing or earth leakage, Figs. 3, 4 (not shown).
Patent GB-474635-A (GB)
Title: Improvements in or relating to the handles of umbrellas and walking sticks and the like
IPC: A45B9/00
Filed: 1936-05-29
Abstract: 474,635. Embossing wood. CHELL, G., and CHELL, G. B. May 29, 1936, No. 15180. Drawings to Specification. [Class 100 (ii)] In the production of " Congo, '' " Astral," or other markings on natural wood to be used in making walking-stick handles, umbrella handles, and the like, the wood is subjected to pressure by dies so as to form indentations ; the surface is then skimmed to remove a thin layer equal or almost equal to the depth of the indentations, and finally heat or other treatment is applied so as to cause the compressed parts to swell and form raised markings on the surface. The marking operation is completed by scorching, staining, or varnishing the surface. The wood is subsequently bent to the required shape.
Patent GB-1467660-A (GB)
Title: Hydraulic apparatus
IPC: F16H63/12
Filed: 1974-04-05
Abstract: 1467660 Change-speed control KOMATSU SEISAKUSHO KK 5 April 1974 [6 April 1973] 15199/74 Heading F2D A pressure regulator, producing a gradual increase in pressure and rapid pressure release in an operated member such as the cylinder b of a ratio-selecting clutch or brake in a vehicle transmission, comprises, between an inlet 2 and outlet 3, a regulator valve 10 loaded rightwards by inlet pressure 2 acting, through a restrictor 11, in a chamber 9, to open an exhaust 4 for pressure decrease, and leftwards, for pressure increase, by a spring 15 and by pressure supplied to a back-pressure chamber 8 from delivery 3 through a bore 32 and restrictor 19 in a quick  return valve member 17. On initial supply of pressure at 2, the flow necessary for filling the clutch or brake cylinder b creates a pressure drop across an orifice 20 in a large land 17a of the valve 17, shifting the valve 17 left to exhaust at 6 the back-pressure chamber 8, so that outlet pressure is held at a constant low value by the regulator load spring 15 acting alone. When flow ceases the valve 17 is moved back to the right by outlet pressure 3 acting on the land 17a, closing the exhaust 6 and supplying pressure at a controlled rate to the back-pressure chamber 8 through the bore 32 and restrictor 19. This produces an instantaneous small pressure rise followed by a gradual increase to the maximum (Fig. 2, not shown).
Patent GB-986154-A (GB)
Title: Improvements in or relating to phosphoric acid purification
IPC: C01B25/225
Filed: 1962-04-19
Abstract: <PICT:0986154/C1/1> An aqueous solution of phosphoric acid prepared by reacting Ca3(PO4)2 with an excess of H2SO4 is purified by admixing the hot solution with (1) a precipitation seed comprising CaSO4.2H2O and (2) a calcium compound in amount at least sufficient to convert the excess H2SO4 in the solution to CaSO4, agitating and simultaneously cooling to 0 DEG -50 DEG  C. to precipitate CaSO4; and separating the resulting purified aqueous solution of phosphoric acid from the precipitate.  Alkali metal cations which may be provided by Na2SO4, K2SO4, NaHSO4, KHSO4, Na3PO4 or K3PO4 may be present in the aqueous sulphuric acid in amount such that the atomic ratio of alkali metal to phosphorus present in the Ca3(PO4)2 is between 0.08 and 0.64.  The precipitation seed may be added in an amount of 50 g. to 100 g. of solid material per litre of solution, and may comprise solid material formed in a preceding operation of the process.  The calcium compound added may be CaO, CaCO3 or Ca3(PO4)2 and in amount such that the molar ratio of free H2SO4 in the solution to the CaO is 0.5 to 1.75.  A soluble sulphide may be added to the solution to precipitate the arsenic.  In Fig. 3 powdered apatite was introduced to vessel 1 and mixed with aqueous H3PO4. H2SO4 and Na2SO4 were added and heated to 90 DEG  C.  The slurry was pumped to filter 4 where crude H3PO4 was obtained and delivered to vat 6 and then pumped to container 9 and a slurry of CaSO4 and Na2SiF6 precipitate in a preceding run was added through line 20.  Apatite powder was then added and the mixture cooled to 30 DEG  C. by passing through heat exchanger 13.  A portion of the slurry of CaSO4 and Na2SiF6 obtained after passing the suspension through thickener 16 was recycled to container 9 and the remainder pumped to vessel 1. An adsorption agent e.g. Bentonite may be added to container 9.  A filter may be used in place of thickener 16.
Patent GB-1533966-A (GB)
Title: Dampers
IPC: F16F9/48
Filed: 1977-04-13
Abstract: 1533966 Combined hydraulic-elastomeric damper with throttling SOCIETE NOUVELLE DES ATELIERS DE VENISSIEUX 13 April 1977 [20 April 1976] 15340/77 Heading F2S A damper which combines hydraulic and elastomeric damping comprises a first elastomeric body 4 having at least one hydraulic liquid filled cavity connected to an hydraulic accumulator 2 by at least one passage 11 formed in an intermediate elastomeric body 10 that can only expand radially inwardly to narrow the passage under stress. The accumulator comprises a liquid filled cavity 13 and a gas filled bag 16 whilst the body 4 may comprise cavity defining recessed and apertured discs 41, 42, 43 or an open-celled sponge, Fig. 3 (not shown). Radially outward expansion of the elastomeric body 4 is prevented by a flanged disc 9 such that stress applied to either of telescopic outer cases 1, 22 causes compression of body 4 and increased throttling of passage 11. A membrane liner 15 may be used and may completely or partially encircle the gas filled bag 16. In Fig. 4 (not shown) three passages are provided, one of which has an insert to prevent complete blockage.
Patent GB-1171621-A (GB)
Title: Improvements relating to Generators for High Frequency Heating Equipment
Inventor: GLOVER JOHN JEKEN
IPC: H01P7/06
Filed: 1966-04-06
Abstract: 1,171,621. R.F. couplings. RADYNE Ltd. 6 April, 1967 [6 April, 1966], No. 15366/66. Heading H4A. [Also in Division H1] In a dielectric heating apparatus comprising a high-frequency generator having a cavity resonator from which power is picked up by a loop, it is stated that frequency drift caused by loading may be reduced by setting the central plane of the loop at an angle of from 20 to 55 degrees to the plane containing the axis of the cavity and the centre of the loop. The pick-up loop may be pre-set to the required angle, or it may be arranged for adjustment by rotation about its axis. As described for a cylindrical cavity of circular cross-section 10, Fig. 3, a loop 16a may project through the upper wall 15 of the cavity, or a loop 16b may project through the cylindrical side wall 11 of the cavity. An adjustable loop may be mounted on a rotatable base 24, Fig. 3, and a split ring 23, the latter being inside a bearing ring 22 which is fixed in the upper wall 15 of the cavity.
Patent GB-1457203-A (GB)
IPC: C02F1/76
Filed: 1974-04-08
Abstract: 1457203 Treating dye-containing effluent HOLLYTEX CARPET CORP 8 April 1974 [16 April 1973] 15448/74 Heading C1C Dye-water effluent is reclaimed by adding chlorine to the effluent to decolourise the pigment, removing excess chlorine by adding a chlorine-neutralizing agent to ensure that there is no hypochlorous acid present, filtering the treated effluent to reduce a build-up of salts from the chlorine-neutralizing step and recycling the filtered water. Specified chlorine-neutralizing agents are sodium bisulphite and sodium thio. sulphate. The effluent is preferably made strongly alkaline before the treatment with chlorine.
Patent GB-107511-A (GB)
Title: Improvements in Explosive Shells.
Inventor: DAVIDSON JAMES HERBERT
IPC: F42C19/08
Filed: 1916-10-31
Abstract: 107,511. Davidson, J. H. Oct. 31, 1916. Projectiles.-Consists in making the powder-cup of a shrapnel shell of sheet metal such as iron, and welding the abutting edges of the cover d and of the bcdy b together electrically or by the oxy-acetylene process. The cover may, as shown, be thinner than the body, and it may have a flanged. periphery.
Patent GB-697095-A (GB)
Title: Improvements in or relating to apparatus for testing pipe joints
IPC: G01M3/28
Filed: 1950-06-21
Abstract: 697,095. Stuffing-box packing. MOULTON, F., and LEAD WOOL CO., Ltd. July 6, 1951 [June 21, 1950], No. 15546/50. Class 122(v) [Also in Group XXVIII] A packing ring for pipe-joint testing apparatus has inclined sides and an arcuate outer periphery formed with sealing lip, Fig. 2 (not shown), or a number of circumferential grooves 20. The ring is made from a length of extruded and vulcanized rubber, and a flat steel spring being incorporated in the base of the ring. Specification 212,715, [Class 99(ii)], is referred to.
Patent GB-702853-A (GB)
Title: Improvements relating to cycle and like brakes
Inventor: WOOD ALBERT EDWARD
IPC: B62L3/02
Filed: 1951-06-30
Abstract: 702,853. Cycle brakes. BIRMINGHAM SMALL ARMS CO., Ltd. Sept. 30, 1952 [June 30, 1951], No. 15555/51. Class 136(1) A clip for a cycle brake comprises an ear 16 apertured at 17 to support slidably a brake-block carrying member, the ear being disposed substantially centrally of the clip in the direction of sliding movement of the brake-block carrying member. The clip is formed of two sheet metal pressings 2, 9. The ear 16 is formed on the part 9 which is of channel cross-section, the sides 10 of the channel 13 at each end being bent inwardly to contact each other (Fig. 2). The part 2 is semi-circular and has a D-shaped hole at one end to engage a groove 19 in the part 9. The other end of the part 2 is formed with an elongated hole 7 to receive a threaded bolt 15 which is screwed into a hexagonal or square headed nut 14 non-rotatably housed in the channel 13. The base of the channel may be flat or it may be provided with a strengthening rib.
Patent GB-277743-A (GB)
Title: Improvements in and relating to machines for making paper bags and the like
IPC: B31B19/10
Filed: 1926-06-21
Abstract: 277,743. Robinson, P. G., Duerden, S., Sargent, T., and Strachan & Henshaw, Ltd. June 21, 1926. Paper bags and the like, making.-A method of feeding bag blanks or tubes from a bag-tube making machine consists in freely feeding forward the tubes on to a support and at an appropriate time, as when the tube is about to leave the control of the forwarding rollers of the bagtube making-machine, engaging the tube between gripping surfaces which accelerate its motion and present it to a rotary folding mechanism at the surface speed of that folding mechanism, the rear of the tube being at the same time positively positioned or gripped. A roller a for making the transverse fold in a satchel or like paper bag m is fixed with respect to the forwarding rolls c, d of a bag-tube making-machine at a distance therefrom which is slightly greater than the length of the longest bag to be made. About midway between the rolls a and c, and not more distant from the axis of the folding roll a than the length of the shortest bag to be made, is a feeding roll j formed with a mutilated or recessed portion j<2> and co-operating with a second roll k. As the tube m is fed forward by the rolls c, d, its forward edge or portion passes over the roll j, whilst the mutilated portion j<2> is providing a gap between the rolls j, k, and as the tube leaves the rolls c, d the tread portion j<1> engages and grips it to accelerate its motion up to that of the folding roll a. With the longest bags the gripping occurs when about half their length has passed the feeding roll j, but with shorter ones it takes place at positions more near their forward edge. The feeding roll j and the folding roll a are of equal size, the size being such that the mutilated portion j<2> is rather longer than the distance between the centres of the rolls j, a and the tread portion j<1> is not less than the length of the shortest bag, approximating to half the length of the longest one. The roll j may be mounted on its axis so as to be angularly adjustable thereon, to vary the extent of the positive feed, and the roll k may be replaced by a second adjustable mutilated roll. In place of the mutilated roll j, plain rollsperiodically separated by cam means may be used. Specification 276,104 is referred to.
Patent GB-1170000-A (GB)
Title: Compositions containing fumaric acid
IPC: A23L27/00
Filed: 1967-04-05
Abstract: 1,170,000. Fumaric acid. ALLIED CHEMICAL CORP. 5 April, 1967 [6 April, 1966], No. 15672/67. Heading C2C. [Also in Division C6] Rapidly soluble, stable fumaric acid compositions comprise particles of fumaric acid of not more than 44 microns, at least 0À05% of an anionic surfactant, X-SO 3 -Na, where X is -OR, -R or -R(COOR) x , where R is a hydrocarbon radical containing 1-14 C, preferably an alkyl radical, x is 1 or 2, and at least 0À5% of 1,2-propylene glycol. Surfactants mentioned are lauryl sodium sulphate, dioctyl sodium sulphosuccinate, lauryl sodium sulphoacetate, and sodium triarylbenzene sulphonate. The mixture of finely divided fumaric acid as a wet press cake, and the surfactant and glycol is dried and 2 to 10% of mono or disaccharides particularly dextrose hydrate may be included. The compositions may be added to food products such as beverages.
Patent GB-478794-A (GB)
Title: Improvements relating to ceramic material
IPC: C04B35/16
Filed: 1937-06-07
Abstract: Electrical insulating material is made by firing a mass comprising a large proportion of talcum or soapstone and from 2 to 10 per cent of magnesian spinel preferably in the form obtained by electrical fusion.  Clay, barium oxide or other alkaline earth material, and zirconium oxide up to 10 per cent may be added.  In an example, a raw ceramic mass comprises 84 parts of soapstone, 7 of magnesian spinel, 7 of clay and 2 of calcium carbonate.  Other examples containing barium oxide and zirconium oxide are given.
Patent GB-338572-A (GB)
Title: Improvements in curtains and similar hangings and in the manufacture of the same
IPC: D03D39/00
Filed: 1929-05-22
Abstract: 338,572. Naamlooze Vennootschap Geb. van den Bergh's Industrie en Handelmaatschappij. March 27, 1929, [Convention date]. Pile fabrics; double and multiple fabrics.-A woven fabric for curtains or similar hangings comprises a series of tensioned warps 1 and a series of binding warps 2 shedded in chosen sequence alternately over and under the tensioned warps for the insertion of weft threads 3 - - 8 and design warps f or pile warps p combined with the weft threads on either side ot the tensioned warps. A similar structure may be obtained by weaving a double fabric having designs or pile warps on the outer faces and the inner faces connected by pile warps adapted to be cut to form a pile surface.
Patent GB-770597-A (GB)
Title: Reference electrode for making ph measurements
Inventor: INGRUBER OTTO V
IPC: G01N27/30
Filed: 1955-06-03
Abstract: 770,597. pH Measurements electrodes. CANADIAN AVIATION ELECTRONICS, Ltd. June 3, 1955, No. 16022/55. Class 37. A reference electrode for use in making pH measurements comprises an electrode stem 5, containing an electrolyte such as saturated potassium chloride, and provided with a small opening 15 at the lower end, a cooling jacket 6 surrounding the upper portion of the stem with inlet and outlet openings 7 and 8 for the passage of cooling medium, an electrolyte reservoir 11 joined to the upper end of the stem, a half cell 10 positioned within the reservoir 11 and conductor means for electrically connecting the half cell in a pH measuring circuit. The half cell is preferably of the calomel type plugged with fibrous material 22 between calomel 21 in the form of a paste or dry mixture and a small amount of potassium chloride crystals 23. A ball-point 26 provided at the end of a platinum wire 25 is immersed in the mercury 20. The electrode is suitable, particularly for measuring the pH or hydrogen ion concentration of solutions under conditions where the electrode is exposed to a temperature substantially above 160‹ C. and pressures above 120 lb. per sq. in.
Patent GB-916502-A (GB)
Title: Coded tools and means for selecting the same
IPC: B23Q3/155
Filed: 1959-06-17
Abstract: 916,502. Drills; machine tool details. KEARNEY & TRECKER CORPORATION. June 17, 1959 [June 27, 1958; March 30, 1959], No. 16061/60. Divided out of 916,501. Class 83 (3). A tool comprises a plurality of coded means 929 on a body portion 116, the coded means being capable of co-operating with sensing means of a tool indicator to identify the function, size and type of tool. The machine in which the sensing means is provided is as described in Specification 916,501. Specifications 916,503 and 916,504 also are referred to.
Patent GB-818776-A (GB)
Title: Improvements relating to thermal apparatus
Inventor: CHICK DOUGLAS RICHARD
IPC: G21C3/06
Filed: 1956-05-24
Abstract: 818,776. Nuclear reactors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 21, 1957 [May 24, 1956], No. 16116/56. Class 39(4). To prevent a reactor, particularly a materials testing reactor, from running away under fault conditions, "safety" material having a neutron capture cross-section which increases rapidly with increase in temperature is added to the moderator, fissile material or the material of fuel element cans. Samarium is the proposed safety material and the quantity required is of the order of 0À025 per cent. by weight of the U235 fuel with which it is mixed in the fuel element.
Patent GB-949970-A (GB)
Title: Improvements in and relating to containers for perishable foodstuffs and other articles
IPC: B65D19/02
Filed: 1960-05-06
Abstract: 949,970. Crates. W. T. BUSS, and SIMPSON Ltd. Jan. 4, 1961 [May 6, 1960], No. 16131/60. Heading B8P. A crate comprising a wooden box having a base and sides provided with ventilating channels, which give access of air from the underside of the base through the contents of the box when standing on the ground or when stacked. The box, made from spruce or suitable plywood, has four sides 4, a bottom panel 1 and fillets 6 and may be assembled using water-proof glue, nails 12, or screws with or without metal straps 10 or angles 8 and 9. Spacer blocks 2, fixed to the underside of the bottom panel 1, in conjunction with skids 3, provide ventilating channels 5. The ventilation of the interior of the box is afforded by the vent slots 11 formed in the bottom and sides, as shown in Fig. 1. The vent edges 11a and 116 may be upwardly inclined. The vents also provide hand holds for the handling of the container. Centre flow vents 13 surmounted by a cowl 14 and located by plate 15 may be provided. Additional ventilating channels may include vents in the sides of the box or an inner spaced jacket with vents for passage of air or gas. The corner fillets 6 may project above the side to facilitate stacking and may terminate in rails extending along the top edges of side walls. Vertical stacking may be bottom side down or alternatively bottom side down/bottom side up. Lifting facilities are provided by the ventilation channels 5, but top edge lifting may be afforded by metal straps extending under the base and up the sides terminating in eye-hooks. The box may be manufactured to be either of the rigid or collapsible type and the box panels may be nested in the space between the skids 3. The box may be provided with a lid 18 with vents 19 and a hinged gate 20 for the discharge of contents. The wood may be treated with a wood preservative.
Patent GB-312676-A (GB)
IPC: B21G3/28
Filed: 1929-05-25
Abstract: 312,676. Mustad, O., Mustad, C., Mustad, H., Mustad, W., and Mustad, C., (trading as Mustad & Son, 0.). May 30, 1928, [Convention date]. Addition to 289,404. Forging nails. The process of manufacturing horseshoe nails of the parent Specification is modified by pressing the blank once in a fourdie press in such way that the shank is pressed to its full length, and then finishing after severing the blank by two successive upsetting operations compressing the head in its longitudinal direction. The nail blank pressed in the four-die press to full length of shank but with elongated tapered part is severed from the bar and transported by the rotating carrier T from position I to position II where the tapered part K<1> is enclosed in a die. F and shortened by an upsetting tool to its final length K<2>; thereafter at position III the head is upset in the usual manner to its final form K<3>.
Patent GB-890865-A (GB)
Title: Improvements in or relating to aerials
IPC: H01Q1/12
Filed: 1960-05-09
Abstract: 890,865. Rod couplings. KOLKE, H., and KOEHLER, H. May 9, 1960 [May 20, 1959], No. 16240/60. Class 99(1). [Also in Groups XXV and XL(c)] In a passive aerial element support system the element 1 is inserted traversely through a tubular support 3, and is reinforced internally in the region of insertion by a tubular member 2. Securing means, for example a screw, engages the element 1, the member 2, and the support 3 to fix their relative positions. Detents 6 in the element 1 may be provided, these seating in depressions 5 in the member 2.
Patent GB-241841-A (GB)
Title: Improved mouse-trap
IPC: A01M23/30
Filed: 1925-06-24
Abstract: 241,841. Smith, P. J. G. June 24, 1925. Animal traps. - In a throw-over break-back trap, a lever 6 of the first order is used to restrain the throw-over frame 7, by means of its notch 11, and to hold the bait preferably in a recess 12 at the other end of the lever. The lever is pivoted on a pin 9 in the base, being fitted in a slot 5 in it. As shown, the base consists of two parts 2, 3 connected by screws 4. Specification 190,072 is referred to.
Patent GB-500781-A (GB)
Title: Process for the manufacture of non-curling films
IPC: G03C1/81
Filed: 1938-06-01
Abstract: 500,781. Films. SCHERING AKT.- GES. June 1, 1938, No. 16444. Convention date, June 1, 1937. [Class 2 (ii)] A film made by depositing a solution such as a cellulose derivative solution upon a drum, wheel, band, or like support, removing the solvent, and stripping the film from the support, is rendered non-curling by subjecting the two sides of the film to treatments with solvents or swelling agents such that the side, which was in contact with the air during the setting of the film on the casting surface, is swollen more strongly than the other side, and the film is then dried. The operation of swelling may be combined with that of coating with a thin gelatine layer such as is required for photographic purposes. In an example, the wheel side of a cellulose triacetate film is'rinsed with a solvent mixture containing methylene chloride and methanol, and the air side is treated with a mixture of the same liquids but containing a higher proportion of methylene chloride. In another example, the wheel side of a cellulose nitrate film is coated with a mixture of gelatine, water, acetic acid, and methanol, and the air side is coated with a mixture of the same ingredients but containing a higher proportion of methanol. Specification 436,784 is referred to.