baber/WOPTO huggingface dataset:
Patent GB-622673-A (GB)
Title: Grinding wheel and method of producing same
IPC: B24D7/00
Filed: 1946-09-16
Abstract: 622,673. Compositions containing abrasives. AKTIEBOLAGET DENTATUS. Sept. 16, 1946, No. 27729. Convention date, Sept. 21, 1945. [Class 70] [Also in Group XXIII] A grinding wheel comprises grinding grains, such as diamond grains, firmly embedded in a metallic binding material of celliform structure which contains cavities and is adapted, under the influence of forces acting on the grinding grains, to permit turning movement of the grains in the structure to present new cutting edges. The metallic binding material may fill the whole space between the grinding grains and the cavities or as shown in Fig. 4 each cavity 3 may be surrounded by a shell 1 of metallic binding material, each grinding grain 2 being covered by a similar shell. As the wheel wears away during grinding, the grinding grain becomes free to turn and present new cutting edges as shown in Fig. 5. In a modification the binding material is formed by a number of corrugated foils to which are attached grinding grains covered with metal shells.
Patent GB-498705-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/02
Filed: 1937-10-13
Abstract: 498,705. Slicing-machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd. (Maatschappij van Berkel's Patent N.V.) Oct. 13, 1937, No. 27788. [Class 28 (ii)] In a slicing-machine clamp of the kind wherein one end of the clamp bar is pivotally mounted and the other end has an adjustable telescopic attachment, comprising a slaeve element and a rod element, whereby the clamp is supported in any required angular setting, a dirt-excluding shield surrounds the rod element and is adapted to receive the sleeve element in its movements relatively to the rod. As shown, the clamp bar 3 is pivoted to a sleeve 4 adjustable on the post 5. The shield 8 is closed at one end by a cap 9 which is pivoted at 10 to the sleeve 4, the rod 7 being screwed into the cap 9. The sleeve element 6 is locked, in known manner, to the rod 7 by an interposed divided bush 11.
Patent GB-209212-A (GB)
Title: Improvements in systems of generation of alternating current
IPC: H03B7/10
Filed: 1922-10-14
Abstract: 209,212. Robinson, E. Y. Oct. 14, 1922. Electromagnetic interrupters; moving-coil relays.-Tne coil 57 of a moving-coil relay is supplied with alternating current through slip rings 63, fixed to a spindle 58, and is caused to oscillate between the poles of a fixed magnet under the control of a spiral spring 62. A radial arm 64 on the spindle oscillates between two fixed contacts connected to the grids of two thermionic valves.
Patent GB-480881-A (GB)
Title: An improved plastic self-hardening composition
IPC: C04B28/04
Filed: 1936-10-14
Abstract: A plastic composition particularly for use as a floor or wall covering comprises a fibrous or woody aggregate other than cork, cement containing up to 25 per cent silica, e.g. Portland cement, rubber latex of about 75 per cent concentration, and a 10-15 per cent aqueous solution of bone glue, or bone glue and casein, and an alkali metal salt, e.g. potassium carbonate.  The aggregate may be derived from hardwood, nuts, asbestos or ebonite which contains fibrous fillers.  The cement, the aggregate and the latex may be coloured before mixing with one or more dyestuffs or pigments.  Specification 441,765 is referred to.  The Provisional Specification states that the aggregate may be cork dust or cork wool.
Patent GB-537684-A (GB)
Title: Improvements in and relating to containers for pulverulent materials
IPC: B65D83/06
Filed: 1939-10-13
Abstract: 537,684. Dispensing container for pulverulent materials. STANCO, Inc. Oct. 13, 1939, No. 27882. Convention date, Nov. 3, 1938. [Class 18] A laminated dispensing container for pulverulent material is made by winding sheet material such as kraft paper or cloth which may be waterproofed, as in the figure, or is constituted from nested concentric members, rigid cap members 3, 4 of stiffened paper, moulded material, metal &c. being secured so as to stiffen the ends, the plies being secured together at the ends by adhesive. When the container is squeezed to eject contents through an opening 5, which may be made by the user, the laminations are free to move relatively to each other only near the middle of the body. The middle of the container may be flexibly supported e.g. by a block of sponge rubber which permits the contents to pass through it. The inner layer of the container may be corrugated and the outer layer plain.
Patent GB-685057-A (GB)
Title: Improvements in or relating to machines for mining mineral
IPC: E21C25/64
Filed: 1949-11-01
Abstract: 685,057. Mining-machines. MARCEROU, P. Nov. 1, 1949. No. 27912/49. Class 68(i) A machine for mining blocks of mineral in a single operation comprises two endless chain jib cutters 5, 6 held rigidly together in spaced relation and pivotally and slidably mounted on trunnions formed on a slider that can be drawn along rails 2, 3 mounted parallel to the face. The one or both outer idler sprockets of the jibs are provided with gearing 30 which drives a rotary bar cutter 24 mounted between said jibs. The kerf formed by the bar cutter connects up the kerfs cut by the jib cutters.
Patent GB-964939-A (GB)
Title: An improved pig pen or sty
Inventor: WOODHALL FREDERICK GARNET
IPC: A01K1/00
Filed: 1962-07-20
Abstract: 964,939. Animal feeding appliances. W. A. WILLIAMS (ENGINEERS) Ltd. July 15, 1963 [July 20, 1962], No. 27922/62. Heading A1M. In a pig pen provided with a feeding trough d, a panel a pivotally mounted at the centre points b of each extremity forms a wall of the pen and is tilted about its pivots to include the trough in, or exclude it from the pen. A hand lever e pivoted to the panel a acts through a linkage on bolts i to engage the bolts in sockets on an arcuate plate j to secure the panel in position. The panel preferably extends centrally of the trough.
Patent GB-1099858-A (GB)
Title: Process for preparing nucleoside-5'-monophosphates
IPC: C07H19/10
Filed: 1965-07-01
Abstract: 51-Nucleotides having the general formula <FORM:1099858/C2/1> wherein B is a purine or a pyrimidine base are prepared by reacting the corresponding nucleoside with acetone, phosphorus oxytrihalogenide and water, adding at least one compound selected from pyridine and tertiary amines 1 to 4 hours after the initiation of the reaction, mixing the resulting reaction mixture with water to produce a 21,31-o-isopropylidene 51-nucleotide of the formula <FORM:1099858/C2/2> and acid hydrolysing the solution containing the nucleotide.  The amount of acetone used is preferably from 3-100 moles per mole of nucleoside and the amount of phosphorus oxytrihalide, which may be added at the beginning of the reaction, in two distinct stages, or throughout the whole reaction, is preferably from 1.5 to 20 moles per mole of nucleoside. An amount of at least 0.5 moles per mole of nucleoside of pyridine or a tertiary amine (e.g. pyridine derivatives such as collidine and lutidine, trimethylamine and triethylamine and mixtures of these compounds) is required, 0.1 to 5 moles of water per mole of nucleoside may be present and the reaction is generally effected within the temperature range -20 DEG  to +50 DEG  C. Organic solvents such as acetonitrile, nitromethane, dichloromethane and tetrahydrofuran may also be added to the reaction mixture. Specified nucleoside starting materials are uridine, cytidine, guanosine, adenosine, inosine and xanthosine.
Patent GB-694514-A (GB)
Title: Improvements in or relating to electrical power supply systems employing a vibratoryinverter
IPC: H02M7/62
Filed: 1950-11-16
Abstract: 694,514. Converting. ERICSSON TELEPHONES, Ltd., and MITCHELL, J. H. Jan. 31, 1952 [Nov. 16, 1950], No. 28039/50. Drawings to Specification. Class 38 (ii). In a vibratory inverter system in which a tuned capacitor/inductor oscillatory circuit is associated with the load circuit so as to modify the waveform of the current pulses through the inverter contacts in such a way as to reduce sparking, these contacts are enclosed in a gastight chamber filled with an inert gas such as hydrogen or nitrogen. The contacts thereby retain their shape and consequently their value of contact resistance, and the impedance values of the circuit components and therefore current waveform remain constant. The invention may utilize the systems described in Specifications 632,469, 637,938, 648,045 and 649,200, the circuits forming the subject of the last of these Specifications being described again.
Patent GB-666375-A (GB)
Title: Improvements relating to tea strainers
IPC: A47J43/22
Filed: 1949-11-03
Abstract: 666,375. Filters. EDMONDS, Ltd., G., and COLLINS, W. H. Aug. 1, 1950 [Nov. 3, 1949], No. 28137/49. Class 46 A tea strainer of the kind having a handle at one side of the bowl and a restplate at the other for supporting on a tea cup has one or more curved locating grooves of arcuate form 5. Fig. 4, pressed in the underside of a flat sheet metal restplate 2 to receive the top edge of the tea cup. The handle 3<SP>1</SP>, Fig. 5, may be corrugated at 6 so that one or other of the grooves 7 may engage the top edge of the cup, depending on its size; the rest-plate 2<SP>1</SP> is flat.
Patent GB-1431432-A (GB)
Title: Navigational apparatus
IPC: G01C19/36
Filed: 1972-06-15
Abstract: 1431432 Vehicle heading measurement SPERRY RAND Ltd 8 June 1973 [15 June 1972] 28166/72 Heading G1N A magnetic heading detector is used to correct a heading derived from a gyro or stabilized platfrom in a vehicle, a separate A.C. power supply being provided for the magnetic detector so that variations in the frequency or voltage of the magnetic detector power supply are less than half any variations in the supply for the gyro or platform. Fig. 1 shows how a heading given by gyro 25 is corrected for long term errors by magnetic flux valve 1. The gyro heading is transmitted to an indicator shaft 5 via synchros 27, 28, gear-box 30, motor 31, and gear-boxes 32, 22, 23. The flux valve drives the shaft 5 via transolver 3, amplifier 6, demodulator 7, integrator 9, logic circuit 15, stepping motor 19, gear-box 21 and the differential gear-box 22. The shaft 5 thus gives a corrected heading. The flux valve 1 and demodulator 7 are powered by a stabilized supply so as to minimize the effect of voltage or frequency variations. The rest of the circuitry is not so sensitive to variations, and is powered from an unstabilized line. By stabilizing only part of the supply in this manner the weight of the supply is reduced, e.g. for use in an aircraft. The flux valve output can control the gyro rather than drive the shaft 5 in the Fig. 1 manner; the gyro is then slaved to the flux valve and is corrected for changes in magnetic heading.
Patent GB-445111-A (GB)
Title: Improvements in vehicles having double tyres
IPC: B60G3/06
Filed: 1934-10-02
Abstract: 445,111. Vehicle spring-suspensions; axle arrangements. TENNANT, W. J., 111, Hatton Garden, London.-(Tatra Works Ltd. Motor Car & Railway Carriage & Wagon Builders ; 200, Kartouzska, Smichov, Prague) Oct. 2, 1934, No. 28217. [Class 108 (ii)] In vehicles provided with double tyres provision is made whereby when the vehicle is unloaded or only slightly loaded one tyre is stressed more strongly than the other and when maximum load obtains both tyres are stressed equally and also whereby the tyre springing and the total springing becomes harder as the load increases. As shown half axles A are pivoted to the chassis or body at points S as far below the wheel centres as possible and are provided with projections V arranged above the wheel centres and bearing on the underside of springs Qu. The arrangement shown in Fig. 2 indicates a lightly loaded vehicle in which the stress comes on the outer tyres and the ratio of the effective length of the half axle to the length of the spring produces a softer springing than in the case where both tyres are equally stressed to produce an effective length X of the half axle as in Fig. 1. In that Figure the pivot points S are caused to sink causing the inner tyres R to become stressed.
Patent GB-535399-A (GB)
Title: A process for the production of pentaerythrite
IPC: C07C31/24
Filed: 1939-10-19
Abstract: 535,399. Pentaerythrite. LONZA ELEKTRIZITATSWTERKE UND CHEMISCHE FABRIKEN AKT.-GES. Oct. 19, 1939, No. 28230. Convention date, Oct. 17, 1938. Addition to 440,691. [Class 2 (iii)] In the purification of crystals of pentaerythrite the scouring washing described in the parent Specification is effected on a strongly-vibrating sieving-surface which may be of silk or metal gauze or in a depositing- centrifugal apparatus, but preferably the centrifuge is used to remove mother-liquor prior to the washing on the vibrating sieve-surface. Otherwise, mother-liquor may be removed by pressing. If a centrifuge is used for the whole process, it is preferred to agitate the crystals with washing-solution between each treatment in the centrifuge.
Patent GB-722716-A (GB)
Title: Refrigerator display cabinets
Inventor: WALLEY GERALD GAUNT
IPC: A47F3/04
Filed: 1952-12-01
Abstract: 722,716. Refrigerators. HUSSMAN BRITISH REFRIGERATION, Ltd. Dec. 1, 1952. [Dec. 3, 1951] No. 28243/51. Class 29. An open-top display cabinet having a storage chamber 3, a superposed display space 20 with a perforated bottom 25, and a fan 14 for circulating air past refrigerating pipes 8 in a duct 7 has the fan motor 15 mounted within an aperture 5a in a horizontal partition 5 between the storage chamber and the duct 7 to admit part of the cooled air past the motor into the storage chamber. The fan motor is mounted by a spider in an inclined partition 5 bounding the top of the storage chamber and forming with a parallel partition 13 air duct 7 containing the refrigerating coils 8. The partition 5 drains to a pipe 10 carrying away any liquid. The fan 14 draws cold air from the duct 7 and forces a part through the aperture 5a to the storage space,. part to the space beneath the perforated bottom 25 and part to a passage 18 whence it issues past deflector plates 22 which direct it horizontally across the top of the display space 20 to an inlet duct 24 between glass plates 23 at the front. The cool air passing through the per-. forations of the bottom 25 and upwardly through the goods also pass the duct 24, which communicates with the inlet end of the duct 7. Slots 6 in the front of the partition 8 allow air from the storage chamber to be drawn into the duct 7. Specifications 630,578 and 630,579 are referred to.
Patent GB-1046467-A (GB)
Title: Treating and finishing method and products
IPC: D06N3/00
Filed: 1963-07-17
Abstract: A process for applying a material, which at ambient temperature tends to agglomerate, to the exposed surfaces of an object e.g. bandage material for the purpose of forming a finish coating on the exposed surfaces comprises the steps of forming the material into a discrete material of finely divided particles, subjecting the particles to a temperature below 0 DEG C., to keep them deflocculated, and applying the particles to the exposed surfaces while maintaining them at the said temperature, then elevating the temperature of the particles in order to permit them to agglomerate and to set.  Cold thermosetting powder, e.g. urethane resin, is deposited from a gaseous medium, e.g. air, on prechilled nylon or rayon filaments in a loose mass.  The treated mass is placed in plastic bags, where it is cured to impart shape, springiness and resilience to the mass.  The mass, with or without the bag, may be applied as a bandage.  Alternatively in use, the mass is chilled, additional cold thermosetting powder is applied and then the mass is applied over gauze to the limb of a patient and covered with gauze.  After setting of the resin at ambient or elevated temperature, the exterior gauze is removed and the mass is left on the limb as a cast, which is porous.
Patent GB-320517-A (GB)
Title: Improvements in or relating to travelling trunks and the like
IPC: A45C13/03
Filed: 1928-10-03
Abstract: 320,517. Tite, M. Oct. 3, 1928. Coverings for protecting wearing-apparel from dust.-A fitting for use in a travelling trunk or the like comprises a framework a provided with cross-bars b around which an article of dress is adapted to be folded, the frame having a backing d of muslin or other transparent or semi-transparent material and one or more cover flaps such as e - - - h adapted to be tied down by tapes o. Tapes j attached to the frame are adapted to be tied over the folded garment. At the ends of the backing lifting tabs k are provided, and a hook m for hanging the device is provided at one end of the frame. The device may be suspended from an extensible or other supporting bar in a wardrobe trunk.
Patent GB-1185203-A (GB)
Title: Improvements in or relating to mass spectrometers
IPC: H01J49/14
Filed: 1967-06-20
Abstract: 1,185,203. Ion sources. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 20 June, 1967 [23 June, 1966], No. 28325/67. Heading H1D. A mass spectrometer wherein a target plate 5 is struck by a beam of ions 4 to release ions which are accelerated through an aperture 13 to an analyser (not shown), is characterized by the provision of a potential barrier between the target 5 and the aperture 13 to prevent extraneous ions from passing into the analyser. The potential barrier may be provided by a grid 15 biased a few volts relative to the target, or by a similar bias applied to the second accelerating electrode 9. As shown the target 5 is rotatable so that it may be located in a vapour deposition chamber 7 and rotated into the path of the beam 4 for test purposes. The bias on the repelling electrode should be more than 0À03 volts and less than 1/ 1000  of the final accelerating voltage of the primary ions.
Patent GB-1262995-A (GB)
Title: Purification of phenol
Inventor: APICE PASQUALE JOSEPH
IPC: C07C37/86
Filed: 1969-06-04
Abstract: 1,262,995. Purification of phenol. ALLIED CHEMICAL CORP. 4 June, 1969 [4 June, 1968; 12 March, 1969], No. 28357/69. Heading C2C. A process for the purification of phenol produced by the decomposition of cumene hydroperoxide and containing carbonyl-bearing impurities comprises contacting the phenol at a temperature of 40‹ to 220‹ C. with 0À01 to 2À0% of its weight of a polyamine and subsequently purifying the phenol by distillation, and adding an acid or acid anhydride to the phenol before, during or after the distillation. If the acid or acid anhydride is added before the distillation, about 0À5-10 moles, preferably 2-6 moles of the acid should be added for each mole of polyamine compound. If the acid is added after the distillation the amount of the acid or acid anhydride should preferably be 0À005-0À4% based on the weight of the phenol.
Patent GB-304710-A (GB)
Title: Improvements in or relating to audio frequency thermionic amplifiers for use in submarine and the like cable systems
IPC: H04B3/04
Filed: 1927-10-25
Abstract: 304,710. Smith, W. S., and Mc- Lachlan, N. W. Oct. 25, 1927. Drawings to Specification. Transformers.-In a resonant intervalve transformer in which the primary and secondary windings have resonant frequencies outside the desired range, a tertiary winding with a condenser across it is provided, Fig. 10, not shown.
Patent GB-1216608-A (GB)
Title: Air conditioning unit and pump for single pipe system
IPC: F24F5/00
Filed: 1968-06-14
Abstract: 1,216,608. Heating and cooling buildings. BORG-WARNER CORP. 14 June, 1968 [28 June, 1967], No. 28456/68. Heading F4U. In an air heating and cooling system having a single main 10a, 106 supplying heated and chilled liquid alternately for predetermined intervals to units 16 in a number of zones A, B, C sensing means 40, 42 are provided to ensure that if cooling is required a pump P supplying the heat exchanger 24 is only set in motion if cooling liquid is being circulated throughout the system. Similarly, when more heat is required the pump P will only be set in motion if hot liquid is being circulated. The system includes a timer 19, which may be programmed or operated manually, and which at intermediate load conditions will cycle a valve 18. Under other conditions the valve 18 permits heated or chilled liquid to circulate. Liquid returning via the main 10b has its temperature sensed at 104 as a result of which a valve 100 directs the returning liquid to the chiller inlet 103 or to the heater inlet 107. The ratio of the time hot water is circulated to the time cold water is circulated is dependent upon the relative heating to cooling needs as determined by sensors 114, 116 connected to the timer 19. Each unit 16 comprises a heat exchanger 24 and fan 22, an inlet 25 from the main and a return 27 to the main, also a by-pass 43 containing sensor 42. A pump 36 and one way valve 41 are provided in inlet 25. The fan coil unit may alternatively be an induction unit.
Patent GB-630206-A (GB)
Title: Control system
IPC: A63J5/02
Filed: 1946-09-23
Abstract: 630,206. Electric control systems. BENDIX AVIATION CORPORATION. Sept. 23, 1946, No. 28474. Convention date, Oct. 9, 1945. [Class 40 (i)] To position a shaft 14 in any one of, e.g. six positions, a control handle 18b rotates a switch 18e to supply current from source 28 over contacts 18d to a selected contact 18h connected to corresponding contacts 19h, 19 f on two follow switches 19c on shaft 14; the first follow switch has a gapped commutator 19g and the second follow switch has a commutator 19e so that until the gap 19g is at the selected contact 19h, the driving motor 10 is energized over lines 20 and switch 18p, which is in a position determined by the direction of rotation of the control handle 18b to feed one or other field 10d, 10e of the motor. The shaft 14 is driven by a Geneva mechanism 16 opening a cam-actuated switch 23 at each position; switch 23 is ineffective to stop the motor until the gap 19g is at the selected contact 19h, and at this point the circuit for the motor is transferred from commutator 19g to commutator 19e and contact 23; thus the motor circuit is broken at contact 23 protecting the contacts of switches 19c.
Patent GB-831618-A (GB)
Title: Improvements in tubeless tire and chafer therefor
IPC: B60C15/06
Filed: 1957-09-10
Abstract: 831,618. Tubeless tyre chafers. FIRESTONE TIRE & RUBBER CO. Sept. 10, 1957 [June 21, 1957], No. 28508/57. Class 144 (2). To prevent wicking of air from the inside of a tubeless tyre to the outside, or to the carcase plies, the bead chafer strips 18 are of knitted fabric 30 disposed with the courses extending circumferentially of the bead and which includes courses of air-impervious monofilaments 7 to serve as a barrier against such wicking of air. All the courses of the knitted chafer may comprise the monofilaments 7, or the strip 18 may include courses of air-pervious multifilament yarns 5, 6 alternating with the monofilament courses and forming the marginal edges of the strip. The fabric may be resin or rubber impregnated, skim-coated or calendered, and may be tubular or flat knitted to the desired width for a chafer strip to extend from the bead toe to adjacent the tyre sidewall. The yarns 6 may comprise cotton, rayon, nylon, vinyl resin or saran and the monofilaments 7 may be of nylon, vinyl resin or saran. " Dacron " (Registered Trade Mark) may also be used for the yarns 6 or monofilaments 7.