baber/WOPTO huggingface dataset:
Patent GB-487775-A (GB)
Title: Improved junction box for electric cables and the like
IPC: H02G15/10
Filed: 1936-12-04
Abstract: 487,775. Junction boxes. NELSON, W. A. Dec. 4, 1936, No. 33276. [Class 38 (i)] In an assemblage of junction, boxes, each box is divided by a partition into a sealing and a connecting chamber, terminals mounted on the partition serving to connect the conductors in one sealing chamber with the terminals of the adjacent box. As shown, two boxes 2 divided by partitions 4 into sealing chambers 5 and connecting chambers 6 are mounted one on the other in break-bond relationship, flanges 3 on the boxes being bolted together and covers 8,10 being similarly secured on the exposed chambers. The terminals may be interconnected by bent-strips provided with eyes for clamping on the terminals. In a modification the boxes may be of wedge form with the inclined margins of the connecting chambers bolted face to face. A housing for a lamp may be integral with or attached to the box.
Patent GB-1503224-A (GB)
Title: Television cameras
IPC: H04N5/225
Filed: 1975-08-09
Abstract: 1503224 Printed circuit assemblies ELLIOTT BROS LONDON Ltd 20 July 1976 [9 Aug 1975] 33291/75 Heading H1R [Also in Division H4] A television camera tube 1 has a plurality of electronic sub-assembly substrates 4 (e.g. printed circuit boards carrying components) distributed around the axis of the tube in radial planes, preferably equally spaced. The substrates 4 have edge connectors 6 engageable with sockets in an annular member 7 encircling the tube, and the substrates 4 are mounted between cylindrical members 2, 3.
Patent GB-648290-A (GB)
Title: Improvements in trolley devices for hanging goods in chambers, in particular in refrigerating cars or motor lorries
IPC: B60P3/05
Filed: 1947-12-17
Abstract: 648,290. Elevated railways. SOC. FRANCAISE DE TRANSPORTS & ENTREPOTS FRIGORIFIQUES. Dec. 17, 1947, No. 33357. Convention date, Nov. 10. Addition to 648,289. [Class 104 (ii)] A carriage for use in the trolley system for a refrigerator van or car described in the parent Specification is arranged to bridge'the intervals or gaps between the curved track portions and the transverse and longitudinal rails which they interconnect, by providing at least two pairs of wheels 14a, with the stub axles 13a of each pair staggered relatively to one another, as shown in Fig. 3, whereby at least three of the wheels bear at any time on the flanged tracks of the runway. The provision of four wheels as in the example allows the wheels to be made of smaller diameter than when one pair only is mounted on a carriage. To facilitate the passage of the carriage within the gap 11‹ between the horizontal rail flanges 11a, 11<1>a at the curved junctions, the carriage, which is substantially in the form of a metal plate is tapered at the front and rear edges into the form of shuttle to avoid wedging. A bolt 70 through the body 12a of the carriage supports a carrier bar 9 formed with hooks 9b at its extremities, and provided with hooks 9a extending laterally from its mid-portion, for the attachment of goods.
Patent GB-912763-A (GB)
Title: Apparatus for applying labels to packets
IPC: B65B51/06
Filed: 1960-09-29
Abstract: 912,763. Labelling-machines. CHALMERS, J. W., and MOLINS MACHINE CO. Ltd. Sept. 28, 1961 [Sept. 29, 1960], No. 33454/60. Class 73. Apparatus for applying labels to packets comprise feed rolls 36, Fig. 3, for feeding a label web 1 from a reel 30 via a printing unit 31-34 to a rotatable suction drum 2, Fig. 1, rotating at a peripheral speed greater than the web feeding speed so that labels cut off by a cutter wheel 7 are separated from the following web. Devices 15, 17 strip and guide each separated label from the drum 2 into a slot 18 in a reciprocating carrier 19 adapted to move at the same linear speed as the peripheral speed of a second suction drum 23, Figs. 1, 2, which removes the label from the slot 18, conveys it past gumming apparatus 24, 25 and rolls it on to a packet fed by a pusher 29 or other conveyer. The overhanging ends of the label are subsequently folded down on to the sides of the packet. Pawls 10 pivoted to the suction drum 2 and operated by a stationary can 14 are each arranged to move outwardly as a label reaches the guide member 17, the suction at this stage being cut off and movement imparted to the label by means of the pawl 10 which then retracts once the label has been fed to the slot 18.
Patent GB-208896-A (GB)
Title: Improvements in and relating to speed indicators
IPC: G01P3/46
Filed: 1922-12-08
Abstract: 208,896. British Thomson-Houston Co., Ltd., and Young, A. P. Dec. 8, 1922. Electric speed indicators.-A moving coil instrument con nected to a lighting generator of the per manent magnet type is used to measure the speed of a motor. car or the like on which the generator is fitted. The coil is divided into two sections 1, 2, the section 1 being connected between the terminals of the lighting generator 3 in series with a variable resistance 4, and the other section 2 being connected in series with a variable resistance 5 between the ends of a low resistance R inserted in the main generator circuit between the generator and the battery. The two sections are wound in opposite directions so that the ampere turns per unit speed are maintained constant both before and during charging, this being accomplished by arranging the turns in section 1 to the turns in section 2 as I2RR1V1 is to E1R2V2 where I, is the current in the lighting mains at speed (V1+V2), R, is the total resistance in the circuit of section 1 and R2 the total resistance in the circuit of section 2, E1 being the voltage of the generator at speed V1 prior to charging.
Patent GB-812679-A (GB)
Title: Process for recovering noble metals
IPC: C22B11/00
Filed: 1957-10-29
Abstract: Aluminium chloride is prepared from a spent catalyst, such as a mixture of platinum and alumina, by heating the catalyst in air to 316-760 DEG  C. to oxidize carbonaceous matter and transferring it to an autoclave containing a solution of 1-5 equivalents of reducing agent per equivalent of noble metal and 91-104 per cent of the theoretical amount required to dissolve the oxide of 20-50 per cent by weight aqueous hydrogen chloride.  The preferred reducing agents are hydroquinone or formic acid but other aldehydes, phenols, organic acids or amino-phenols may be used.  The autoclave is sealed and heated to at least 130 DEG  C. at a superatmospheric pressure, e.g. 50 atmospheres, for 1 hour.  The platinum remains unattacked and the alumina is dissolved as aluminium chloride.ALSO:Noble metals (i.e. Pt, Ir, Os, Pd, Rh, Re, Ru, Ag and Au) are recovered from mixtures containing the metal and a refractory inorganic oxide, such as alumina, zirconia, silica, magnesia, thoria or mixtures thereof, by dissolving the oxide in hydrochloric acid in the presence of a reducing agent to prevent attack of the noble metal by the acid.  The process is suitable for the recovery of noble metals from spent catalysts and is particularly applicable to the recovery of platinum from a contaminated mixture of platinum and alumina.  The spent catalyst is heated in air to 316 DEG C.-760 DEG C. to oxidize carbonaceous matter and is then transferred to an autoclave containing a solution of 1 to 5 equivalents of reducing agent per equivalent of noble metal and 91-104 per cent of the theoretical amount required to dissolve the oxide of 20-50 per cent by weight aqueous hydrogen chloride. To avoid the risk of introducing impurities, organic reducing agent or preferred, such as formaldehyde, acetaldehyde, formic acid, propionic acid, acetic acid, catechol, resorcinol, hydroquinone, benzaldehyde, pyrogallol and other aldehydes, phenols, organic acids and amino-phenols; hydroquinone and/or formic acid are preferred.  The autoclave is then sealed and heated to at least 130 DEG C. at a high pressure, for example 50 atmospheres, for about 1 hour.  The solid platinum is recovered by filtration and the inorganic oxide recovered from its solution in hydrochloric acid and suitably purified before being used in the preparation of a fresh catalyst.
Patent GB-1028758-A (GB)
Title: Improvements in or relating to paper coating compositions
IPC: D21H19/54
Filed: 1964-08-18
Abstract: A paper coating composition consists essentially of an aqueous dispersion of a pigment and a starch binder, the amount of pigment being within the range of 10% to 60% by weight of the composition, and at least a portion of the said binder is a pyro-converted cationic starch (see Division C3) having a Relative Viscosity within the range 1.08 to 1.23, the amount of the pyro-converted cationic starch being at least 2% of the weight of the pigment. The pigment may be a clay.  The pyro-converted cationic starch may be the sole binder or may be mixed with oxidized starch.ALSO:A starch having cationic properties, i.e. one into the molecule of which cationic groups such as primary, secondary, tertiary or quaternary amines, sulphonium or phosphonium groups have been introduced by esterification, etherification or other reactions is pyroconverted by heating until its relative viscosity as a aqueous solution at 30 DEG C. is between 1.08 a 1.23.  In examples, starch is etherified with b -diethylaminoethyl chloride hydrochloride and heated at a pH below 4 to 305 DEG  F.; and starch so etherified is further reacted with methyl iodide to form a quaternary ammonium compound. The process may be applied to corn starch, high amylose corn starch, waxy maize starch, tapioca starch, wheat starch, rice starch, potato starch, sago starch, sorghum or waxy sorghum starch which may be raw, oxidized, etherified or esterified but must not contain any substantial amount of dextrine, or to starch components such as amylose or amylopectin.ALSO:Sheets of paper are coated with an aqueous dispersion of a pigment and a starch binder, the amount of pigment being within the range of 10 to 60% of the composition, and at least a portion of the binder is a pyroconverted cationic starch having a relative viscosity at 30 DEG C. within the range 1.08 to 1.23, the amount of the pyroconverted cationic starch being at least 2%. of the weight of the pigment.  The pigment may be a clay.  The pyroconverted cationic starch may be the sole binder or may be mixed with oxidized starch.  The coatings may be applied by air knife, roll coat, trailing blade or brush coating and the paper subsequently dried and finished.
Patent GB-771674-A (GB)
Title: Improvements relating to electric potential transforming apparatus
IPC: G05F1/42
Filed: 1953-12-04
Abstract: 771,674. Control systems for consumption apparatus. BRITISH ELECTRICITY AUTHORITY, and HASLER, E. F. Dec. 29, 1954 [Dec. 4, 1953], No. 33845/53. Drawings to Specification. Class 38 (4). A load, such as the voltage coil of a wattmeter, is energized in accordance with the potential of a high voltage line by a valve amplifier supplied by an auxiliary power source and driven from a resistive, or capacitive, potential divider energized by the high voltage line. The amplifier is arranged to present a very high impedance to the potential divider, for which purpose the input valve may be a cathode follower. The amplifier also includes negative voltage feed-back from the load circuit to stabilize the gain and provide the required phase angle characteristics. A further feed-back loop incorporating a band filter may cause the amplifier to be tuned to a narrow frequency band about the normal operating frequency. Positive feed-back may also be incorporated to compensate for changes in load current.
Patent GB-959564-A (GB)
Title: Improvements in and relating to microscope sub-stage diffusing screens
Inventor: DYSON JAMES
IPC: G02B21/08
Filed: 1959-10-06
Abstract: The surface of a transparent plate of glass is treated to produce a light diffusing screen by finely grinding with fine emery or carborundum and then etching with 5% hydrochloric acid.
Patent GB-287126-A (GB)
Title: Improvement in pistons
IPC: F16J1/04
Filed: 1927-12-15
Abstract: 287,126. Bohn Aluminum & Brass Corporation. March 16, 1927, [Convention date]. Pistons; balancing laterally.-In a piston in which inextensible struts 24 extend between bearing slippers 16, 17, the struts are embedded in the webs 10 which carry the gudgeon-pin bosses and have free engagement with the surfaces of the slippers. The struts are in the form of flat plates and their ends may be left straight, or may be curved, or bent at right angles, Fig. 5, so that the centres of contact of the struts with the slippers are closer together than the axes of the struts. Holes 26 are formed in the struts to facilitate bonding with the webs 10. The slippers extend upward from a circular portion 15 integral with the webs 10, and a slot 22 extends into one slipper. Specifications 268,399, 287,123, 287,127, 287,154, 287,155, 301,094, 301,095, and 304,331 are referred to.
Patent GB-836543-A (GB)
Title: Treating petroleum residues
IPC: C10C3/04
Filed: 1958-10-24
Abstract: The blowing of petroleum residues is carried out in the presence of 0,01 to 1,00% by weight of an amino-phenol, e.g. a p-amino-phenol such as monobenzyl p-amino-phenol, and at a temperature within the range 180 DEG -300 DEG C.  Preferably 0,03 to 0,05% of the amino-phenol is present and the temperature within the range 240 DEG to 300 DEG C.
Patent GB-1158563-A (GB)
Title: Process for the Manufacture of Chlorinated Hydrocarbons
IPC: C07C17/10
Filed: 1966-07-29
Abstract: 1,158,563. Production of chlorinated hydrocarbons. HALCON INTERNATIONAL Inc. 29 July, 1966 [5 Aug., 1965], No. 34102/66. Heading C2C. Carbon tetrachloride, perchloroethylene or mixtures thereof are produced by the hightemperature, vapour-phase thermal chlorination of a C 1-3  aliphatic hydrocarbon or partially chlorinated derivative thereof, the process being characterized in that (a) a vapour-phase effluent containing chlorocarbon, hydrogen chloride and chlorine is withdrawn from the reaction zone and quenched in a quench zone containing a quench medium comprising carbon tetrachloride and perchloroethylene and maintained at 0‹ to 150‹ C. to condense substantially all the chlorocarbon contained in the vapour, (b) the uncondensed vapour which contains hydrogen chloride and chlorine is scrubbed with refrigerated quench medium at below 0‹ C. to absorb chlorine from the vapour and (c) chlorine is stripped from at least part of the chlorine-rich quench medium and is recycled to the reaction zone.
Patent GB-881372-A (GB)
Title: Preparation of steroid compounds
IPC: C07J75/00
Filed: 1958-10-24
Abstract: Keto-steroids are prepared by oxidising nuclear secondary hydroxyl groups attached to any of the 3a , 3b , 6a , 7a , 7b , 11b , 12a  and 17b -positions of the steroid nucleus by contacting solutions of the said steroids in an acidic organic medium with gaseous chlorine.  The organic medium may be an anhydrous organic solvent or a mixed organic and aqueous medium such as glacial acetic acid, acetone, aqueous acetone and aqueous solutions of acetic acid.  The organic medium may also contain an alkali metal salt which is soluble in the reaction medium such as sodium acetate.  Suitable starting compounds are 5,6-dibromocholestanol, cholic acid, the methyl esters of 3a ,12a -dihydroxycholanic acid and of 3a  - benzyloxy - 12 - keto - cholanic acid, 3a ,6a  - dihydroxy-, 3a ,12a -dihydroxy-, 3a -benzyloxy-12a  - hydroxy - and 3a  - acetoxy - 12a  - hydroxy - cholanic acid; 3a ,21-dihydroxy-, 3a -hydroxy-21-acetoxy -, 3a ,17a ,21 - trihydroxy - and 3a ,17a  - dihydroxy - 21 - acetoxy - 11,20 - diketo - pregnane; 3a ,11b ,21 - trihydroxy - and 3a ,11b  - dihydroxy - 21 - acetoxy - 20 - keto - pregnane; 11b ,17a ,21-trihydroxy- and 11b ,17a -dihydroxy-21 - acetoxy - 3,20 - diketo - 4 - pregnenes; 3b  - hydroxy - 20 - keto - allopregnane; 3 - keto - 7b  - hydroxy -, 3 - keto - 17b  - hydroxy - and 3a  (and b ),17b  - dihydroxy - androstane; and 11b ,21 - dihydroxy - and 11b  - hydroxy - 21 - acetoxy - 3 - keto - D 17 - 20 - cyanopregnene.  Detailed examples are given.
Patent GB-1465478-A (GB)
Title: Fuel control system for gas turbine engine
IPC: F02C9/32
Filed: 1973-07-18
Abstract: 1465478 Gas turbine engine fuel systems LUCAS INDUSTRIES Ltd 2 July 1974 [18 July 1973 (2)] 34134/73 and 34137/73 Heading FIG The subject-matter of this Specification is identical with that described in Specification 1465480 but the claims are concerned with a gas turbine engine fuel system comprising a variable metering device communicating with pilot and main burners, a throttle valve between the metering device and the main burner being urged open by the pressure downstream of the metering device and urged shut by the pressure in the passage leading to the main burners, biasing means urging the throttle valve against the downstream pressure and means for varying the bias.
Patent GB-945826-A (GB)
Title: Improvements in or relating to liquid flow regulators or controllers
Inventor: PARSONS ALFRED
IPC: B67D1/14
Filed: 1961-09-23
Abstract: 945,826. Regulating fluid flow. CHADBURNS (LIVERPOOL) Ltd. Aug. 21, 1962 [Sept. 23, 1961], No. 34135/61. Heading G3H. A throttling valve in the delivery line of pressurised fluid, e.g. beer comprises an axially adjustable conical plug member 23 in the bore 11 of a housing 10 having an inlet 13 and an outlet 16. The plug which defines a restricted passage the annular cross-section of which progressively increases, serves to reduce foaming or frothing. To the same end, the coupling member 16 is provided with an annular recess 21 which changes the direction of flow of some of the fluid.
Patent GB-154625-A (GB)
Title: Improvements in or relating to metal brushes for bottle washing machines
IPC: C25C1/14
Filed: 1920-12-02
Abstract: 154,625. Porte, L. E. A. Nov. 19, 1919, [Convention date]. Rotary brushes; wire and like brushes; bristles, fixing. - In a metal brush for bottlewashing machines, the blades 1 carrying the brushes 2, 3 are formed of arcuate section and are set in a circular groove in a rotating sleeve 4, the spaces between the blades being filled with solder 8.
Patent GB-461032-A (GB)
Title: Improvements in door knobs or handles
IPC: E05B3/06
Filed: 1935-12-10
Abstract: 461,032. Door handles. ASH, W. T. Dec. 10, 1935, No. 34159. [Class 44] The knob A is secured in position by means of a ferrule or bush B having a thickened inner end b<2> which can be expanded by the insertion of a drift to occupy the enlargement a<2> in the bore a<1> of the handle. The end of the knob is first inserted into the aperture in the rose plate C so that the rim of the aperture abuts against the shoulder a<4> ; the ferrule is then inserted and expanded. The end of the knob rests against the flange b<3> of the ferrule so that the rose plate is not gripped.
Patent GB-767362-A (GB)
Title: Improvements in or relating to blasting devices
Inventor: FILSTRUP EDWARD C
IPC: F42B3/06
Filed: 1954-11-25
Abstract: 767,362. Blasting cartridges. OLIN MATHIESON CHEMICAL CORPORATION. Nov. 25, 1954, No. 34181/54. Class 9 (1). A fluid pressure blasting cartridge, Fig. 1, comprises a body part 10 communicating with a gas supply conduit 12 and a venting cap 40 connected together by a sleeve 20 within which is a rupture plate 60 held between a clamping ring 30 and a shearing ring 50. Diametrically opposed openings 24 in the sleeve 20 give access to the plate 60 as in Specification 768,164. The cap 40 is of steel or other metal of the same strength and hardness as the parts 10, 20, 30. O-rings 66, 68 seated in grooves seal the joints between the sleeve 20 and the part 10 and the ring 30. The plate 60 is preferably of mild steel. After operation of the cartridge, the cap 40 is rotated to release the pressure on the ring 50. Whereupon the remaining fragments of the plate 60 can be withdrawn through the openings 24 and a new plate inserted to reset the cartridge.
Patent GB-1364296-A (GB)
Title: Apparatus for controlling the position of a mobile implement
IPC: E02F5/14
Filed: 1971-07-21
Abstract: 1364296 Photo-electric guidance system K WILLNER 21 July 1971 34234/71 Heading H4D [Also in Divisions G1 and G3] Apparatus for controlling a mobile implement or vehicle, e.g. a plough share or the blade of a bulldozer comprises a transmitter of radiation and a pair of receivers of radiation mounted one above and one below the transmitter on the vehicle and a mirror having parallel horizontal limits spaced a distance corresponding to half the receiver spacing positionable to reflect by specular reflection radiation from the transmitter to the receivers during movement of the vehicle towards or away from the mirror, the receivers being responsive to variations in received radiation to maintain the implement in a predetermined relationship with a reference plane. Mole drainer 3, Fig. 1, is controlled by light from a source 5 falling on detector 6, 6<SP>11</SP>, and the system may be on/off when the beam moves beyond the limits of the mirror, or analogue-differential with a phase-reversal of a chopper modulated signal compared with a reference signal indicating passage through the plane. Angled mirrors or reflecting prisms reflecting the beam in a direction parallel to the angle of incidence to be used. Pentagon or double prisms may be used to effect control of a plough moving in a large field and the mirror may be provided with adjustable edge stops to determine the limits of movement. An additional similar system may be used for automatic steering. The vehicle apparatus is positionally adjustable and may be controlled automatically in respect of its horizontal direction towards the mirror.
Patent GB-866613-A (GB)
Title: Improvements in and relating to electrical signal integrating apparatus
Inventor: DAWSON EDGAR FREDERICK
IPC: G06G7/186
Filed: 1958-10-27
Abstract: 866,613. Valve integrating circuits; transistor integrating circuits. ERICSSON TELEPHONES Ltd. Nov. 16,1959 [Oct. 27,1958], No. 34262/58. Class 40(6) An integrating circuit comprises an amplifier A with capacitive coupling C between output and input, and a resistance R shunted by a non- linear impedance in series with the input circuit. The non-linear impedance may comprise two asymmetrical conducting elements, e.g. silicon or germanium diodes X1, X2 connected with their polarities reversed, or a number of such diodes connected in series, or alternatively a single element, such as a thermistor may be used. The amplifier may comprise a single triode, which may have its output load connected in the cathode circuit, and the feedback capacitor between cathode and grid or may comprise a number of amplifier stages. The circuit is suitable for improving the signal/noise ratio of a signal, and may include a low-pass filter in the input circuit. The amplifier A could alternatively employ transistors.
Patent GB-605230-A (GB)
Title: Improvements in cycle brakes
IPC: B62L1/16
Filed: 1945-12-18
Abstract: 605,230. Cycle brakes. VACHER, N. Dec. 18, 1945, No. 34298. Convention date, Oct. 10, 1940. [Class 136 (i)] In a cycle brake comprising two levers A pivoted at O to the frame F and carrying brake-shoes B acting externally on the wheel rim C, the free ends of the levers A slidably carrying a common transverse spindle M, which in turn supports a rotatable cam N provided with helicoidal surfaces which move the free ends of the levers A apart, when the cam N is rotated. The brake controlling means is in the form of a cable f wound around the cam, its end being fixed to the cam. The levers A are returned by a torsion spring R connecting their upper ends, the inclination of the helicoidal surfaces being such that the action of this spring causes backward rotation of the cam.
Patent GB-342398-A (GB)
Title: Improvements in protective covering for pipes and the like
IPC: F16L59/02
Filed: 1929-11-11
Abstract: 342,398. Nonconducting coverings. BROWN, R., 5, Victoria Street, London. Nov. 11, 1929, No. 34358. [Class 64 (ii).] A covering for protecting pipes and other surfaces from cold comprises an outer flexible sheet of bituminous plastic material such as bitumen, and an inner layer of perforated or granulated cork. The Provisional Specification refers to wool, felt and fibre in place of cork.