baber/WOPTO huggingface dataset:
Patent GB-440569-A (GB)
Title: Improvements in or relating to abrasive coated articles
Filed: 1934-07-02
Abstract: 440,569. Coated abrasive articles. CARBORUNDUM CO., Ltd., Trafford Park Road, Manchester. July 2, 1934, No. 19486. Convention date, Oct. 12, 1933. [Class 60] Coated abrasive articles of the kind in which a granular abrasive is secured by an adhesive to a backing, which is generally flexible, are made by coating the abrasive particles with a fusible resin, applying a coating of resinous material (for example a liquid resin), to the backing, spreading the coated particles on the coated backing, and heating to cause union of the resin coatings. The invention is particularly applicable to coarse grit abrasives, and may be used in the production of flexible coated abrasive discs employed for trimming welded joints. Preferably the abrasive grains are coated by applying a plasticizing medium such as liquid resin or resin solvent and mixing them with a dry powdered resin, which adheres to them. They are preferably then heated, substantially as described in Specification 431,062, to melt the resin whilst being maintained separate from one another, so that on cooling the resin coating is sufficiently hard to prevent any tendency of the grains to agglomerate. The heat treatment may however be omitted, or the grains may be coated by heating a mixture of them with a normally solid resin until the latter melts, cooling, and crushing the resulting mass between rolls to break it up into individual coated grains. In making the coated article the backing, consisting for example of vulcanized fibre or very thin spring steel, is coated with a liquid-heat hardenable resin, the coated particles are sprinkled on it, and the article is heated. In examples a spring steel disc is coated over an annulus extending inwardly from the outer edge with a mixture of liquid resin and pulverized flint, and to the coated portion are applied grains of fused alumina prepared by moistening them with liquid resin, dusting them with a mixture of a powdered phenolic condensation product resin and pulverized flint, and heating them as above described. A "file" is made by coating a rod' of wood or metal in a similar way. Alternatively, the fused alumina grains for coating the disc are prepared by heating a mixture of them with the resin and pulverized flint until the resin is melted, and then cooling and crushing the mass. In either case the coated disc is dried and then baked. A heat-hardenable phenolic condensation product resin may be used, or it may be employed to coat only the backing or the abrasive grains and a glycerol phthalic anhydride resin may be used for the other coating. All other forms of abrasive coated articles, such as rigid discs, abrasive belts and coated fabrics, may be made in a similar way. Specifications 356,183 and 388,585 also are referred to.
Patent GB-1299217-A (GB)
Title: Improvements in or relating to diazo type photographic elements
Inventor: MCKINNEY JOHN JOSEPH
IPC: G03C1/60
Filed: 1970-04-23
Abstract: 1299217 Photo-sensitive diazotype materials GAF CORP 23 April 1970 [5 May 1969] 19526/70 Heading G2C A two-component diazotype material comprises a fibrous support coated with a composition containing a pigment, polyvinylpyrrolidone which may be substituted and which is 0À75-3% by weight of the composition, and a polyvinyl acetate emulsion and then coated with a 2-component diazotype composition containing an acid stabilizer. Specified pigments are silica and alumina. The light-sensitive layer may contain allylhyoxyethylthiourea.
Patent GB-776673-A (GB)
Title: Improvements in or relating to very high frequency filters
IPC: H01P1/208
Filed: 1954-07-05
Abstract: 776,673. Waveguide filters. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. July 5, 1954 [July 3, 1953], No. 19587/54. Class 40 (8). A high-frequency band-pass waveguide filter comprises an adjustable conductive vane 6 for altering the resonant frequency of the guide and compensating rod members which are adjusted to improve the Q of the filter as the position of the member 6 is adjusted. The compensating members may be tubular members 7 which slide over rods 4, or stepped rods 9. The members may be connected to the vane 6 to allow both adjustments to be made simultaneously by means of a handle 13. In a modification (Fig. 5, not shown), the members may be moved by a cam mechanism while the vane is moved by a different mechanism. A complete filter is illustrated in Fig. 7 (not shown).
Patent GB-357641-A (GB)
Title: Improvements in or relating to water troughs for use on poultry farms
IPC: A01K39/02
Filed: 1930-06-27
Abstract: 357,641. Drinking - appliances for poultry. PINKNEY, A. G. and WITHERS, N. A. W., Appleby Poultry Farm, Egerton, Kent. June 27, 1930, No. 19619. [Class 5 (ii).] A drinking trough 1 is provided with splash guard members 2 inclined outwardly at an angle of about 25‹ to the vertical from the trough and provided with long narrow apertures 3 extending upwardly and downwardly to permit the insertion of the heads of the birds. The trough is preferably closed by a hinged roof of steep pitch and wire netting or similar material may extend upwardly to prevent fowls perching on the ridge. The trough is preferably deeper at one end than the other and is provided with a waste pipe 7 to run off dirty water. The trough may be detachably mounted on a trestle 6.
Patent GB-236407-A (GB)
Title: A combined work-holder and cutter for shaping shaft keys and the like
IPC: B25B1/24
Filed: 1924-08-21
Abstract: 236,407. Sutcliffe, H. Aug. 21, 1924. Attachements for broaching.-Shaft keys &c. are broached by placing them in a guide-block B and pressing them against a fixed cutter E by means of a graduated screw H, the work then being forced past the cutter by a press. The guideblock B has longitudinal side extensions D acted on by spring G to return the block and release the work on loosening the screw H. A distancepiece P is provided for inserting under the press so that the work may be forced completely past the cutter. The cutter and extensions D are held by a plate M and screw N. In a modification the cutter E, Fig. 6, is adjusted relatively to the block by the screw H, the block being pressed by a spring G to maintain the head of the screw H in constant contact with a fixed stop Y<1>.
Patent GB-876686-A (GB)
Title: Improvements in or relating to bicyclo (2,2,2) octane derivatives
IPC: C07D209/72
Filed: 1959-06-09
Abstract: The invention comprises acid addition or mono or bis-methonium salts of compounds of the general formula <FORM:0876686/IV (b)/1> wherein A is a divalent saturated straight or branched chain aliphatic hydrocarbon radical containing 2-5 carbon atoms, the radicals R when individual, are the same or different and when linked together, form with the adjacent nitrogen atom a heterocyclic ring and B is a bicyclo [2,2,2] octane ring system which is unsaturated or saturated, unsubstituted or substituted by one or more alkyl, oxo, and/or hydroxyl groups or has a benzene ring fused on to one of its sides. The compounds of the invention may be prepared by condensing a bicyclo [2,2,2] octano-2,3-dicarboxylic anhydride with a N-disubstituted-aminoalkylamine, reducing the imide so formed and, if desired, reacting the 11-(o -disubstituted-aminoalkyl)-bicyclo [2,2,2] octano [2,3:31,41] pyrrolidine with an alkyl halide or treating the base with an acid.
Patent GB-663126-A (GB)
Title: Improvements in or relating to animal traps
IPC: A01M23/24
Filed: 1949-07-28
Abstract: 663,126. Animal traps. GLEN, M. A. July 28, 1949, No. 19899/49. Class 5(i) An animal trap comprises a loop 1 provided with a ground-engaging spike 2. A spring 3 has one end secured to the loop by a bracket 3a, the other end forming an arm 6 which is held in the position shown by a pin 7. A trigger 9 pivoted on a pin 8 dislodges the arm when the trigger is moved by a forward movement of an animal. A member 12 is pivoted on the end of the trigger 9 and co-operates with a pin 13 on the loop 1. Movement of the trigger 9 to the right as viewed in Fig. 5, dislodges the arm 6 from the pin 7. Movement of the trigger in the opposite direction causes the member 12 to abut against the pin 13 and move in the opposite direction to the trigger 9 to dislodge the spring arm 6. In a modification, the end of the trigger is formed with a wedge-shaped groove the arm 6 lying, in the set position, in the angle of the groove and the arm is dislodged by the contact of either side of the groove when the trigger is moved in either direction by an animal. Specification 596,735 is referred to.
Patent GB-773544-A (GB)
Title: Improvements in liquid fuel supply systems for gas turbine engines
IPC: F02C7/22
Filed: 1954-07-07
Abstract: 773,544. Gas turbine plant. DOWTY FUEL SYSTEMS, Ltd., and TYLER, S. R. July 7, 1955 [July 7, 1954], No. 19915/54. Class 110 (3). [Also in Group XI] In a gas turbine fuel system having burners of the spill type in which a circulating pump is provided in a closed circuit including the swirl chambers of the burners, the circulating pump is driven by a motor arranged in a by-pass around a positive displacement pump supplying fuel to the burners. Fuel from a tank 11 is fed by an engine-driven pump 12 to the burners 13 of the engine, one of which is shown. The rate of fuel supply to the burners is controlled by a servo-operated by-pass valve 14 situated in a by-pass 15 between the delivery and inlet sides 16, 17 of the pump 12. The valve 14 forms part of a flow control mechanism 18 having a manual control lever 19 situated in the delivery line 20 downstream of the by-pass 15. The burners are of the spill type and the common spill line of all the burners is connected to the inlet of a centrifugal pump 22 which discharges into the delivery line 20 downstream of the control 18 through a non-return valve 23. The pump 22 is driven by a turbine 25 located in the by-pass 15. The arrangement is such that at low loads when the fuel discharged from the burners 13 is small, there will be an increased flow through the by-pass 15 and the resulting increase of power from the turbine 25 will assist in providing a forced circulation of fuel through the swirl chambers of the burners. In a modification the turbine 25 is placed in a by-pass around the pump 12 separate from the by-pass containing the valve 14. A servo-operated control valve in this by-pass is controlled by the pressure difference between the delivery line 20 and the spill line 21 so that when the pressure difference decreases the valve opens and vice versa. If the fuel is supplied by two or more engine-driven fuel pumps 12 arranged in parallel, the system may include valve mechanism whereby when a pump is not required to deliver fuel to the burners its output is diverted to the inlet of the turbine.
Patent GB-705816-A (GB)
Title: Container closure
IPC: B65D77/32
Filed: 1952-08-07
Abstract: 705,816. Toothbrush holders. JOHNSON & JOHNSON. Aug. 7, 1952 [Aug. 8, 1951], No. 19933/52. Class 131 [Also in Group XVII] A tube-shaped glass container 1 for toothbrushes &c. has a closure 6 of plastic, made by shrinking a disc or cup on to the container and provided with a tear string 10 between the skirt 7 of the closure and the tube 1, the lower edge 8 of the closure being serrated.
Patent GB-754367-A (GB)
Title: Improvements in or relating to the preparation of catecholsulphonphthalein
IPC: C09B11/08
Filed: 1954-07-07
Abstract: Catecholsulphonphthalein is prepared by melting together o-sulphobenzoic acid anhydride and catechol in equal molecular proportions at 80-130 DEG C. and purifying the crude product, e.g. by diluting the mass with glacial acetic or diluting with water, bringing to a pH of 4, and solvent extraction.
Patent GB-320351-A (GB)
Title: Improvements in yieldable carrier for motion transmitting devices
IPC: H02K7/116
Filed: 1928-07-09
Abstract: 320,351. Uggla, W. R. July 9, 1928. Driving-arrangements. - The casing 1 of a motion-transmitting device which is connected by a rigid coupling 12 to the shaft of a machine driven thereby is supported by springs 2 so that it may partake in variations in the position of the driven shaft. As applied to a tubular cement mill 11, the shaft of the latter is secured by the coupling 12 to the low-speed shaft of a gear mounted within the casing 1, the high-speed shaft of the gear being connected to the shaft of a motor 4 by a yielding coupling 5 - - 10. Rolling-mills and sugar-cane mills are referred to.
Patent GB-612006-A (GB)
Title: Improvements in the refining of hydrocarbons
IPC: C10G45/24
Filed: 1944-10-16
Abstract: A mixture of a hydrocarbon fraction, having a boiling range higher than kerosene, and a naphthene or naphthenic naphtha is passed in the vapour phase at elevated temperature and pressure over a hydroforming or hydrofining catalyst.  Hydrogen liberated from the cracking of the naphthene or naphthenic naphtha desulphurises the hydrocarbon fraction, the excess hydrogen being removed from the reaction products and recycled to the reaction zone at a rate sufficient to maintain the vapour phase at the temperature and pressure employed. The hydrocarbon fraction may be a gas oil or fuel oil containing aromatic, aliphatic or naphthenic sulphides and suitable naphthenes to be cracked are cyclohexane and methyl cyclohexane.  Oxides and sulphides of iron, nickel, cobalt, chromium, molybdenum, copper, manganese or tungsten may be employed as catalyst and mixtures of any two or more of these catalysts may be used.  The preferred catalyst is molybdenum trioxide deposited on alumina.  Specification 598,109 is referred to.
Patent GB-965775-A (GB)
Title: Card processing system
Inventor: HAYES ROBERT MAYO
IPC: G06F3/08
Filed: 1961-06-02
Abstract: 965,775. Sorting digital data. MAGNAVOX CO. June 2, 1961, No. 20038/61. Drawings to Specification. Heading G4M. The invention comprises the use of a known computor and known vacuum transport drums for the sorting and merging of items of data recorded on magnetic record cards. The drums are those described in Specification 845, 490 and the computor preferably an IBM 705 which has a storage capacity of 200 items of data. The record cards contain each 20 items. As an example of the method we describe a sort of 250, 000 items on 12, 500 cards. 1. The contents of ten cards are read on to magnetic tape and from there to the computor where the items are ordered, read out to tape and transferred to ten new cards forming a subgroup S 1 . When the ordering is completed, in response to a signal from the computor, ten more cards are read in. The result of this stage is 1250 subgroups S 1 . 2. The 1250 S 1 's are divided into two sets of 625 S 1 'S. Corresponding S 1 's from each set are merged mechanically according to the valve of the first item on each card to form first sequences S<SP>1</SP> of twenty cards. The 625 S<SP>1</SP>'s are separated into sets of 312 and 313 S<SP>1</SP>'s and are merged mechanically to form S<SP>2</SP>'s of 40 cards each. The 313 S<SP>2</SP>'s are divided into two sets and are merged mechanically to form S<SP>3</SP>'S each of 80 cards. 3. These sequences S<SP>3</SP> are each ordered completely by the computor to give for each sequence a subgroup S 2  on 80 new cards. Eight cards are read into the computor and as soon as the first twenty items of data have been selected and transferred out the next card of the sequence is called for and read in. There will be 162 S 2 'S. 4. The S 2 's are divided into two sets and merged mechanically to form sequences S<SP>4</SP> each of 160 cards. The S<SP>4</SP>'s are merged to form sequences S<SP>5</SP> and these are merged to form sequences S<SP>6</SP> each of 640 cards. 5. Each sequence S<SP>6</SP> is ordered by the computor to form a subgroup S 3  of 640 new cards. 6. The S 3 's are divided into two sets and merged mechanically. The processes 4 and 5 are repeated until all the data is fully ordered. The control equipment is conventional in design and consists largely of counters.
Patent GB-596929-A (GB)
Title: Improvements in and relating to rollers having coverings thereon
IPC: D01G15/86
Filed: 1945-08-04
Abstract: 596,929. Hollow rollers. DRONSFIELD, S. W., and DRONSFIELD BROS., Ltd. Aug. 4, 1945, No. 20092. [Class 34 (i)] [Also in Group VIII] A roller for use with textile machines consists of a pair of metal bearing pieces about the axis of which the roller can rotate, a cylinder of a natural or synthetic thermoplastic or thermosetting resin mixed with a filler, or of a fibrous material impregnated with such a resin, secured thereto, and a covering of leather, card clothing emery fillet or other textile treating material secured to the cylinder by nails or screws. The bearing pieces may be of hardened metal tube 1 secured by taper pins 2 to end discs secured to the cylinder 5 by screws. The cylinder may consist of a resin mixed with wood flour or with animal, vegetable or mineral fibre, or of a single or multiple layer of paper or textile material impregnated with a thermoplastic or thermosetting resin. The material of the cylinder may itself be capable of receiving screws or tacks, or it may be provided with perforations into which wooden pegs 7 are driven for this purpose.
Patent GB-472441-A (GB)
Title: Improvements in and relating to circuit arrangements for measuring a component of an alternating current or of an alternating potential
IPC: G01R1/30
Filed: 1936-07-20
Abstract: 472,441. Capacitance and inductance measurements. SIEMENS & HALSKE AKT.-GES. July 20, 1936, No. 20107. Convention date, July 25, 1935. [Class 37] In the measurement of a component of alternating current or potential wherein an auxiliary circuit is provided for balancing a component not to be measured, a deflection measuring instrument is connected to two circuits, one comprising the measured component and the other an auxiliary alternating current or potential in synchronism with, but of opposite phase to that component not measured, means also being provided for adjusting the auxiliary current or voltage to a desired value. Capacitances, inductances and loss-angle measurements can be made. Condenser 1, the loss angle of which is to be measured is connected in series with the transformer primary 3<1>, and rectifier-instrument bridge 7, 8. An adjustable capacitance 5 is also connected to the bridge and tapped secondary winding 3<2>, the loss angle of condenser 5 being as small as possible. The rectifiers 7, 8 are separately excited from a transformer secondary 9 and are of the vibrating contact type. Between the rectifiers 7, 8 there is a phase-displacement of 180‹, and a similar displacement exists between the secondary and primary potentials of the transformer so that a deflection on the normally balanced instrument circuit is a measure of the capacitance loss-angle. A phase-shifter may be located in the circuit supplying the rectifiers when other measurements are required.
Patent GB-792492-A (GB)
Title: Improvements in or relating to electric motor drives
IPC: H02K7/14
Filed: 1956-06-29
Abstract: 792,492. Electric motor driving arrangements. REICHERT, K. June 29,-1956 [July 8, 1955], No. 20126/56. Class 35. The shaft 11 of a torque motor is released for a predetermined angle of rotation by raising a spring-loaded catch-roller 17 from a slotted disc 12 by means of a manually-operated arm 21. For partial revolutions several slots may be used, and for multiple revolutions the catchroller may be controlled by a revolution counter.
Patent GB-904773-A (GB)
Title: Improvements in or relating to reinforcement bars for concrete
IPC: B21D11/15
Filed: 1960-06-08
Abstract: 904,773. Making reinforcing bars. TORISTEG STEEL CORPORATION S.A.H. June 8, 1960 [June 10, 1959], No. 20211/60. Class 83 (2). [Also in Group X] A rolled reinforcing bar for concrete has a core 1, at least one continuous longitudinal rib 2 which is made to extend helically around the core by twisting the bar, and oblique lugs 4 on the core periphery which are separate from the rib 2 and have such a length that the peripheral component 10 thereof is at least half the core diameter, the lugs being at an angle of at least 5 degrees to the rib 2 and at least 30 degrees and at the most 50 degrees to the bar axis in the twisted state, and having flanks and end faces which after a steep descent merge into the core surface through rounded transitional portions. Adjacent lugs 4 may overlap and may have an axial spacing one from the other which may be approximately equal to the core diameter, but which also may be three to four times the core diameter in the ease of small cores, e.g. of 8 to 15 mm. diameter and about half the core diameter in the case of thick bars, e.g. of over 26 mm. diameter. In the rolling process, it is stated that the cross-sectional reduction of the bars at the last pass is rather greater than is conventional in the rolling of round bars.
Patent GB-941399-A (GB)
Title: Oxidised starch products
IPC: C08B31/18
Filed: 1962-05-25
Abstract: 941,399. Dialdehyde starch hydrazones. MILES LABORATORIES Inc. May 25, 1962 (July 10, 1961), No. 20252/62. Heading C3U. A cationic oxidised starch hydrazone is obtained by reacting under essentially non- degradative conditions in an aqueous acidic medium, a water-insoluble oxidised starch containing at least 5 % of theory of carbonyl groups with a nitrogen-containing compound which is a water-soluble hydrazine or hydrazide containing a tertiary or a quaternary nitrogen atom, said nitrogen-containing compound corresponding to the formula R 1 -N-NH 2  where not more R 2  than one of R 1  and R 2  is a hydrogen atom, each of R 1  and R 2  may be alkyl, quaternary nitrogen- or tertiary nitrogen-substituted akyl or acyl radicals and R 1  and R 2  together contain not more than 10 carbon atoms. The oxidised starch hydrazone is in the original granule form, is insoluble in cold water and is readily gelatinisable in hot water. "Oxidised starch" is defined as starch in which from 0À5% to at least 95 % of the anhydroglucose units have been oxidised to contain reactive carbonyl groups while the polymer remains in high polymeric form and in the original granular state. Oxidising agents include periodic acid and soluble salts thereof, soluble dichromates, chlorine and hydrogen peroxide. The starch may be obtained from e.g. corn, wheat, potato, tapioca, waxy maize and high amylose corn. Specified nitrogen-containing compounds are unsymmetrical dimethylhydrazine, #-triethylaminoethyl hydrazine hydrochloride, betaine hydrazide hydrochloride and N-dimethyl-glycine hydrazide hydrochloride. Preferably, when the oxidised starch contains up to about 10% of theory of carbonyl groups, all the carbonyl groups are reacted, while when the oxidised starch contains about 90 % of theory of carbonyl groups i.e. commercial dialdehyde starch, only up to 10% of the carbonyl groups are reacted with the nitrogen-containing compound. The introduction of cationic groups adds a positive charge to the oxidised starch molecule and increases its affinity for anionic materials such as pigments and paper pulp. The hydrazones of low-oxidised starch are of value as retention agents for pigments, dyes and wet-strength resins, and as agents for flocculating finelydivided anionic materials. The hydrazones of highly-oxidised starch are of value as wet-end additives in paper manufacture and for increasing the dry and wet strengths of the finished paper.