baber/WOPTO huggingface dataset:
Patent GB-1327869-A (GB)
Title: Error detection apparatus
IPC: H04L27/08
Filed: 1971-07-21
Abstract: 1327869 Digital data readout INTERNATIONAL BUSINESS MACHINES CORP 21 July 1971 [28 Sept 1970] 34097/71 Heading G4C An error detection apparatus is disclosed. Data signals on a movable magnetic medium, e.g. tape or disc, are read by a transducer which produces analogue signals, these are passed to a circuit which converts the analogue signals to hard limited digital signals and in which the amplitude of the digital signals is measured so that the threshold level for reading the signals can be varied. Analogue data is read from a multitrack magnetic tape and converted to digital in a read amplifier/differentiator 12. The latter includes a "hard limiting circuit" which produces a digital signal. This hard limited signal is such that, if the analogue signal drops a certain amount below its nominal value, the digital signal begins to revert to analogue. Each track has an amplitude sensor 16 which monitors the level of the digital signal from amplifier 12 and enables gate 18 so long as it is above a predetermined level. If it goes below this level the passage of data from this track to tape control unit 20 and computer 22 is blocked. The amplitude threshold can be set to three levels. Initially it is set high, e.g. 30% and, if the data proves satisfactory the tape control unit 20 can change the threshold, e.g. to zero, using bus 24. If however the unit 20 subsequently detects an error, e.g. parity, phase or amplitude, the threshold is changed back to 30% or to an intermediate level, e.g. 10% (Fig. 2, not shown). The amplitude information can be used in error correction circuitry in unit 20. In a modification (Figs. 3 and 4, not shown) an override signal is provided which is the equivalent of zero threshold. Schmitt triggers, Miller integrators and integrated circuits are mentioned.
Patent GB-1100798-A (GB)
Title: Machine for kneading lumps of bakery dough
IPC: A21C7/00
Filed: 1966-07-29
Abstract: 1,100,798. Moulding dough. K. KEMPER. 29 July, 1966 [1 Sept., 1965], No. 34150/66. Heading B5A. In a kneading machine for pure wheat, mixed bread and rye dough pieces in the range of ¢ to 3 kg., stationary coaxial smaller diameter upper and larger diameter lower dish-shaped containers a, b are each provided with a plurality of kneading elements d which are arranged in a hori. zontal plane for rotation on a spindle q to define a circumferentially extending kneading space a<SP>1</SP> or b<SP>1</SP> of spirally tapering form (Fig. 2, not shown) between each element d and the interior circumferential wall of containers a or b and the breadth of which kneading spaces are adjustable to accommodate the different dough piece sizes by radial displacement of elements d via cranked levers (j) (Fig. 4, not shown), each connected at one end to a radially hori. zontally slidable arm (e) on which a kneading element (d) is mounted and at its other end to a rod (k) connected for vertical displacement to a sleeve (c<SP>1</SP>) which is threadedly engaged on the spindle (q), whereon it is adjustable by a handle (c); the upper container (a) is provided with a closure flap (g) (Figs. 2 and 3, not shown) to facilitate transfer of dough to the lower container (b) and which may be hand operable and may be loaded by a rubber element or spring. The kneading elements d are readily changed by a pin d<SP>1</SP> and spring-loaded catch d<SP>2</SP> connection and the elements d in the upper container a are independently adjustable by screws (m) (Fig. 5, not shown), whereby the position of the appropriate end of levers (j) is adjustable along rods (k). The kneading elements d comprise several integrally connected parts and may be fitted with cams (f) (Fig. 2, not shown). The length of arcuate travel of a dough piece in the lower container may be varied by rotation of the upper container a to vary the position of the flap (g).
Patent GB-1340964-A (GB)
Title: Process for preparing anhydrous ammonium bifluoride
IPC: C01C1/16
Filed: 1971-07-21
Abstract: 1340964 Ammonium bifluoride ALLIED CHEMICAL CORP 21 July 1971 [25 Aug 1970] 34259/71 Heading C1A A substantially anhydrous (< 2 wt. per cent water) mixture comprising at least 90% by weight of NH 4 HF 2  and not greater than 10% by weight NH 4 F is prepared by (a) heating an aqueous solution of ammonium fluoride to remove water vapour and ammonia until the solution contains 5 to 30% by weight of water based on original weight of NH 4 F, (b) heating the solution at from 100 C. to 150 C. to remove ammonia, the water content of the solution being maintained within the same range and (c) dehydrating the mixture by heating at 50 to 130 C. under a pressure less than 700 mmHg. or by recrystallizing the non-aqueous component of the mixture to give the substantially anhydrous composition. The non-aqueous component of the solution produced in step (b) comprises at least 90 wt. per cent NH 4 HF 2  and not greater than 10 wt. per cent NH 4 F. The pressures used in steps (a) and (b) may be atmospheric or subatmospheric pressures which are not so low as to result in temperatures less than 100 C.
Patent GB-1068743-A (GB)
Title: Improvements in or relating to moving target receivers
IPC: G01S13/526
Filed: 1964-08-21
Abstract: 1,068,743. Pulse radar. COMPAGNIE FRANCAISE THOMSON - HOUSTON HOTCHKISS BRANDT. Aug. 21, 1964 [Aug. 21, 1963], No. 34377/64. Heading H4D. The invention concerns pulse Doppler radar using coherent transmitted pulses and provides means whereby IF echo signals at input 191 are only passed through gates 21 and 22 to a display device when they arise from targets moving at speeds within a predetermined narrow range. Input 191 is also connected to a main channel and a reference channel. The main channel comprises a delay 31 of nominally one repetition period, an adjustable phase shifter 33 and a limiter 34. The reference channel also comprises an adjustable phase shifter 33a and a limiter 12 but no delay. The phases of the limiter outputs are compared in phase discriminator 13 and the output of the discriminator is used to control the phase shifters 33 and 33a. During transmission, pulse intervals coherent signals are applied to input 191 simulating echoes from a stationary object. If delay 31 is perfect and no spurious phase shifts are introduced by other channel elements, the signals at the inputs to the phase shifters 33 and 33a will be in phase. Departure from this perfect state is compensated for by the adjustment of the phase shifters 33 and 33a. Actual echo outputs from the limiters are respectively vectorially added and subtracted in means 40 and 41. The sum and difference signals are detected in 42 and 43 respectively, and the resultant difference signal is divided by the sum signal in divider means 45 and 44. The value of this division (N) varies with the speed (V) of the target in a discontinuous manner as shown in Fig. 1. Divider 44 controls gate 22 and divider 45 controls gate 21. Gate 21 is thus shut if (N) exceeds the upper threshold (2), and gate 22 is shut if (N) is less than the lower threshold (1). The two gates are thus simultaneously open only for a limited range of target speeds (V). As an alternative to dividing the sum and difference signals, circuits 44 and 45 may subtract them.
Patent GB-345284-A (GB)
Title: Improvements in or relating to heating compositions for blasting cartridges
IPC: F42B3/11
Filed: 1929-11-11
Abstract: 345,284. Fuel igniters. HODGE, D., 170, Piccadilly, London, and ESCHBACH, W., Troisdorf, near Cologne, Germany. Nov. 11, 1929, No. 34399. [Class 50.] Insensitive heating compositions of carbon dioxide and like blasting cartridges are ignited by the intermediary of more easily ignitible compositions. The igniter shown comprises an electrically ignited match 7, a primary charge 13 of lead thiocyanate and potassium perchlorate, and a secondary charge 10 of iron and potassium permanganate. A space 14 is left between the match 7 and the primary charge 13, and a passage 8 is provided for the escape of the products of combustion.
Patent GB-521901-A (GB)
Title: Improvements in or relating to electrical contacts
IPC: H01H11/04
Filed: 1938-11-26
Abstract: 521,901. Switch contacts. GENERAL ELECTRIC CO., Ltd., and HANSON. W. H. Nov. 26, 1938, No. 34517. [Class 38 (v) A contact 1 comprising a conducting strip bent into U or like shape, is mounted in a channel - section contact - finger 2 of the same width as the contact 1 at the mounting - place, by means of inturned ends 3 which are clamped by means of a square-headed bolt 4, the head 5 of which lies between the limbs of the U. The contact 1 may alternatively be a major arc of a circle and both it and the bolt-head engage the channel-sides to prevent turning.
Patent GB-1132479-A (GB)
Title: Improved ultrasonic testing apparatus
Inventor: FRISBY HENRI
IPC: G01N29/27
Filed: 1966-08-03
Abstract: 1,132,479. Ultrasonic inspection devices. COMMISSARIAT A L'ENERGIE ATOMIQUE. 3 Aug., 1966 [3 Aug., 1965], No. 34742/66. Heading H4D. Ultrasonic test apparatus comprises a base with an upwardly extending spindle carrying a specimen-supporting table, and a transducer supported above the table by a carriage, means being provided for moving the table in a horizontal plane relative to the spindle and for moving the carriage along a horizontal guideway mounted on a vertical arm attached to the base. In the Fig. 2 embodiment adjustably mounted transmitting/receiving transducer 35 is coupled to specimen 45 on motor-driven rotatable levelling table 1 and can be moved radially of the table by hand wheel 37 for scanning the specimen in a polar co-ordinate system by a pulse-echo method in which the relative amplitudes and time positions of received signals are determined from an oscilloscope display. In a modification a second transducer 63 is used for transmission and transducer 35 receives ultrasonic energy scattered by the specimen. In an alternative embodiment (Fig. 3, not shown), table 1 is replaced by a motor-driven carriage (77) which together with the motion of transducer 35 permits scanning of the specimen in a rectangular coordinate system.
Patent GB-476464-A (GB)
Title: Apparatus for emptying containers of heavy lubricants or other viscous substances
IPC: F16N3/10
Filed: 1936-12-17
Abstract: 476,464. Dispensing grease and the like. TECALEMIT, Ltd. Dec. 17, 1936, No. 34747. Convention date, Dec. 17, 1935. [Class 102 (ii)] Apparatus for dispensing grease &c. from a container F comprises a cover 6, carrying a flexible sleeve 2, which can be distended with air supplied through a connection 10. The upper end of the sleeve is secured in the mouth of the cover 6 by means of a conical plug 4, through which the discharge tube 1 passes. The lower end of the sleeve is secured to the tube 1. The cover 6 is secured to the container by means of catches 11, 12. In a modification, Fig. 2, a cap 20, fitting on the container F, carries the discharge tube 26 and an air connection 27. The air acts on a plate 24, which slides on the tube 26, and is packed by a bellows 22.
Patent GB-343441-A (GB)
Title: Improvements relating to catalyst carriers
IPC: B01J37/00
Filed: 1929-11-14
Abstract: 343,441. Catalyst carriers ; sulphur trioxide. NICKELL, L. F., 3016, Linden Place, East St. Louis, Illinois, U.S.A. Nov. 14, 1929, No. 34771. Convention date, Aug. 8. [Class 1 (i).] A catalyst carrier is obtained by mixing a porous mineral matter, such as kieselguhr, with sufficient waterglass, preferably potassium waterglass, to form a workable mass, which is then moulded into pellets, e.g. of 7/32 inch diameter. The pellets are then dried, and the waterglass decomposed, leaving a product consisting of the mineral in a matrix of silica. The decomposition is preferably carried out with an acid gas, e.g. sulphur burner gas at approximately 400‹ C. After cooling, the carrier may be sprayed &c. with a catalytic material. For sulphur trioxide catalysis, the carrier may be sprayed with potassium vanadate. The material may also be platinized, or treated with a nickel compound, and then subjected to a reducing atmosphere. Specifi. cation 23541/13, [Class 1 (i), Chemical processes &c.], and U.S.A. Specifications 687,834 and 1,371,004 are referred to.
Patent GB-836546-A (GB)
Title: Propellent powders
IPC: C06B21/00
Filed: 1958-10-31
Abstract: 836,546. Propellant powders. OLIN MATHIESON CHEMICAL CORPORATION. Oct. 31, 1958 [Nov. 6, 1957], No. 35043/58. Class 9(2) Propellant powder grains having a porous interior and a dense outer layer are made by suspending propellant powder grains in a non-solvent medium, softening the grains by adding to the suspension a solvent for the grains that is only partially miscible with the non- solvent medium, removing a portion of the solvent from the grains (as by raising the temperature of the suspension), adding to the non-solvent medium a solute for it, the solute being substantially insoluble in the solvent, and removing the remainder of the solvent from the grains while the latter are still suspended in the non- 'solvent medium. Water is the preferred non-solvent, but glycerine, benzene and chlorinated hydrocarbons may also be used. Solvents include ethyl acetate, methyl acetate, isobutyl acetate, methyl isobutyl ketone and methyl ethyl ketone. Sodium sulphate, barium nitrate, potassium nitrate, ammonium sulphate and sugar are specified as solutes. A protective colloid such as animal glue or starch may be added to the non-solvent suspending medium.
Patent GB-1122053-A (GB)
Title: Improvements relating to toe lasting machines
IPC: A43D25/08
Filed: 1965-08-16
Abstract: 1,122,053. Boots &c. SCHÍN & CIE G.m.b.H. 16 Aug., 1965 [18 Aug., 1964], No. 35080/65. Heading A3B. In a lasting machine the grippers 8 first move outwardly i.e. away from the toe and then downwardy and outwardly to pull the upper tightly about the back of the last 19, then move downwardly and finally downwardly and inwardly to pull the upper across the insole. The grippers 8 are mounted on a carrier plate 7 which is moved in a vertical direction by a hydraulic cylinder 5, the piston rod 4 of which is pivoted at 3 to a bracket 2 on the machine frame. Outward movement of the carrier plate 7 is produced by a roller 17 on a piston 10 moving in cylinder 9 engaging the cylinder 5 and inward movement is produced by a cam 15 on the cylinder 5 engaging a fixed roller 14. The height of the roller 14 can be adjusted by a cam 16 to vary the time at which the inward movement commences.
Patent GB-946275-A (GB)
Title: Flow regulating valves
Inventor: ZUBLIN MARCEL WILHELM
IPC: G05D23/12
Filed: 1962-09-17
Abstract: 946,275. Temperature-responsive actuating elements. SULZER BROS. (LONDON) Ltd. Sept.17, 1962, No. 35358/62. Heading G1D. [Also in Division F2] A valve for regulating the flow of a heating or cooling fluid is controlled in dependence on ambient temperature by means of a thermostat 31 and has an adjusting member 26 for setting the desired value of the ambient temperature, the thermostat being thermally insulated from the parts of the valve exposed to the fluid. Thermal insulation may be achieved by making parts 18, 21, 24 and 26 of the valve from a synthetic resin known by the Registered Trade Mark "Delrin". The thermostat 31 may be of the kind known by the Registered Trade Mark "Veratherm" and consists of a housing sealed by a rubber diaphragm and containing a mixture of two or more preferably organic substances in which splinters of metal, for example copper, are incorporated. Over the range of temperatures to which the thermostat is sensitive, for example 15 to 25C., the substances are partially in the crystalline and partially in the liquid phase while above and below the range they are wholly in the liquid and crystalline phases, respectively, to provide a lower coefficient of expansion. A small hysteresis between rising and falling temperatures is also produced. The actuating pin 25 of the thermostat is retracted from engagement with a ball 38 in the spindle 25 when a member 10 on the spindle abuts a flange 30 with the valve fully open at the lower end of the temperature range. At the upper end of the range, further expansion of the thermostat after the valve has closed, is taken up by a spring 14 separated from the closure member 5 by a diaphragm 11. The valve which may control the inlet to a radiator, is mounted with its axis horizontal so that ambient air will circulate through holes 20 in the sleeve 18. A disc 35 is clamped in place by the thermostat 31 carries markings to indicate the desired room temperature.
Patent GB-327383-A (GB)
Title: Improvements in or relating to electric heaters
IPC: F24H3/00
Filed: 1928-11-30
Abstract: 327,383. Peard, O. L., Peard, S. M., and Harrison, A. F. Nov. 30, 1928. Drawings to Specification, Garment racks.-Articles of furniture such as hall stands are fitted with low temperature electric heaters, such as those described in Specifications 265,279 and 298,695, [both in Class 37, Electricity, Measuring &c.], the heaters are built into the article of furniture and are so arranged that air passes over them and is discharged into the room, warming it without particularly heating the article of furniture. Numerical examples of suitable heaters and flow of air are given.
Patent GB-1023546-A (GB)
Title: Process and apparatus for the electrowinning of copper
IPC: B62K21/16
Filed: 1962-08-24
Abstract: The subject matter is the same as in Specifications 1,023,544 and 1,023,545 but the claims differ.
Patent GB-734257-A (GB)
Title: Improvements in striped upholstery fabrics
IPC: D06N7/00
Filed: 1953-12-21
Abstract: 734,257. Striped fabrics; coating webs. UNITED STATES RUBBER CO. Dec. 21, 1953 [Jan. 12, 1953], No. 35447/53. Class 140. A woven cotton fabric has a thin flexible coating of thermoplastic material, e.g. vinyl resin, of a selected colour applied to one face, so as to increase the smoothness of this surface without rendering the fabric impervious to air, and spaced raised stripes of a vinyl resin of different colour deposited on the coating to form a porous striped upholstery fabric. Grey loose weave fabric F, Fig. 1, e.g. duck twill or drill, which may have been boiled in caustic alkali and singed to remove projecting fibres and increase the smoothness, is fed from roll 10 under doctor blade 11 to form a coating thereon of polyvinyl chloride organosol of viscosity 10,000-50,000 c.p.s. and containing dioctyl. phthalate plasticizer. This coating is so thin that on subsequent passage of the coated fabric through oven 13 at 300‹ F., to drive off solvent, the film is broken and the fabric remains porous. While the coating is still plastic, the fabric is passed between co-operating rolls 15, 16, of which 15 is cooled and presses any upstanding fibres into the coating and bonds them thereby. The coated fabric C, Fig. 2, of increased smoothness passes under notched doctor blade 18, Fig. 3, to deposit stripes R, Fig. 4, of polyvinyl chloride organosol of similar composition to the first coating. Any resin deposited between the stripes is sucked away by slotted vacuum pipe 22, and the striped fabric passes through oven 23 at 300‹ F. and rising to 400-425‹ F. to fuse stripes. Wider flatter stripes or stripes with a flat top may be formed, and the stripes may be printed lengthwise along the crown with a vinyl resin ink to form 3 colour fabrics. The striped fabric may be passed under an embossing roll to longitudinally and transversely score the stripes and reduce the sheen.
Patent GB-522359-A (GB)
Title: Electron multipliers
IPC: H01J43/04
Filed: 1938-12-06
Abstract: 522,359. Electron multipliers. STANDARD TELEPHONES & CABLES, Ltd. Dec. 6,1938, No. 35528. Convention date, Jan 29. [Class 39 (i)] An electron multiplier comprises a series of secondary emitting electrodes 12, Fig. 1, mounted in an envelope which is composed, at least at the part surrounding these electrodes, of conducting material and has applied to it a potential for preventing divergence of the electrons. The conducting part 1, preferably copper, of the envelope is sealed at each end to glass bulbs 2 and surrounds a hollow oxide cathode 6, heated by a filament 5, a control grid 10, the secondary-emitting mesh electrodes 12, a plane secondary-emitting electrode 13, and a wide-meshed grid anode 14. Each secondary-emitting electrode 12 may consist of a number of superposed meshes, and may be activated with caesium in the usual manner. A potential is applied to most of the electrodes through a potentiometer formed by resistances 16, but the anode and the last three secondary emissive electrodes are provided with independent sources of potential. The electrodes are supported by metal rods 22 which are soldered on to collars 23 registered by insulators threaded on metal rods 25. A collar 26 carries the structure through the rods 25 which are slidably supported at the other end by a collar 27 on the pinch 4. Eyelets 28 secure the collars together. Metal rings 29 are arranged between the insulators and in the plane of each secondary emissive electrode screen the mountings from stray electrons. A potential is applied to the rings through a rod 30 which passes through each ring at a point on the pleriphery thereof. Stray electrons are repelled by the metal envelope which may be at cathode potential. The rings 29 may be integral with the envelope, and a cooling jacket 54 is provided. In another form, the cathode 7 is photoelectric. The shielding rings 29, Fig. 5, may be provided with cylinders 57, and each rod 22 is connected through an insulator 58 to the electrode 12.
Patent GB-355350-A (GB)
Abstract: 355,350. Cash registers. NATIONAL, CASH REGISTER CO., Dayton, Ohio, U.S.A., and WOODS, W. B., 225, Tottenham Court Road, London. May 24, 1930, No. 16020. Addition to 347,271. [Class 106 (i).] Adapted for multiple-item transactions.-The slipprinting hammer described in the parent Specification is controlled as regards effectivity by the setting of a type carrier and by the total-taking lever. The hammer 39 may be held from striking by a latch 250 and this is controlled from the transaction type-wheel 19 by means of a cam 20 fixed to this wheel and serving.to shift a pitman 15 engaging the arm 10 of the latch. If a single-item key is depressed therefore the consequent differential setting of the type-wheel rocks the latch to free the hammer for printing the item on the slip. When the total lever 168 is set for taking the total, say of a multiple-item transaction, a cam slot 4 operates a slide 3 and arm 6 to displace a pitman 246 upwardly and thus remove the latch to allow impression of the total on the slip. Specification 227,861, [Class 106 (i), Calculating &c.], is referred to.
Patent GB-913773-A (GB)
Title: Improvements in and relating to cladding structures
Inventor: TILLEY WILLIAM
IPC: E04B2/96
Filed: 1958-11-05
Abstract: 913,773. Curtain walling. FREEMAN, MORRISON Ltd. Nov. 4, 1959 [Nov. 5, 1958], No. 35582/58. Class 20 (4). In curtain walling, the hollow T-section mullions 1 are in two parts 4, 5 with co-operating flanges 6, 7 at their meeting edges, and the part 5 has an undercut groove 9 to receive the heads of firing bolts for securing the mullion to the building framework. Each transom 11 is hollow and has internal threaded channels 14 for receiving screws or bolts fixing it to the mullion. Upper and lower flanges 12 are provided at one edge of the transom and, together with shoulders 16 on the mullion, form seatings for panels P. The other face of each panel is supported by an L-section metal strip 19 engaged in grooves 20, 21 on the transom and mullion. The transom and mullion are made of an aluminium alloy &c. In erecting the curtain walling, a transom is attached to each part of the mullion and the panels are fixed in position before the two parts of the mullion are assembled.