baber/WOPTO huggingface dataset:
Patent GB-322918-A (GB)
Title: Bread toasters
IPC: A47J37/08
Filed: 1928-12-31
Abstract: 322,918. Hummel, F. E., and Noeth, J. J. Dec. 31, 1928. Teasting-apparatus, timing apparatus for controlling cooking.-An electric toaster in which a clock mechanism removes the bread from the toasting position and simultaneously breaks the heating circuit, is characterized by the fact that the clock-winding lever acts during the winding on a second lever which closes a switch in the heating circuit, and acts after a predetermined time on another lever which moves the bread carrier out of the toasting position. As shown. the holders 8 are pivoted on a shaft 9 having a crank 10 connected by a link 11 to a lever 14 pivoted at 15 and having an upstanding portion 16 in the path of a lever 17. The lever 17 has gear teeth 21 which mesh with a pinion 22 connected to the spring of the timing mechanism. By moving the lever 17 towards the thumb rest 18 the spring is wound up and the escapement 24 starts. The weight of the holders 8, slices therein and the levers 11, 14 swings the holders 8 into the toasting position when the lever 17 is moved. The pin 25 on the lever 17 swings a member 26 pivoted at 27 to operate a switch arm 28, the switch thus being closed. As the mechanism runs down, an arm 30 on the pinion 22 knocks the switch off and breaks the circuit. The travel of the lever 17 and consequently the toasting time is controlled by a stop 41 adjustable by a screw 43 and carrying a pointer which registers with a time scale. To prevent damage to the mechanism, e.g., during transit, a lever 60 is provided which acts as a removable stop for the lever 17.
Patent GB-347200-A (GB)
Title: Improvements in or relating to compressors for refrigerating machines
IPC: F25B31/00
Filed: 1929-12-16
Abstract: 347,200. Refrigerating. POTTER, T. E., 1149, East Davis Street, Portland, Oregon, U.S.A. Dec. 16, 1929, No. 38564. [Class 29.] Compression machines.-An oil separator 48 is located at the top of the casing of an oscillating- cylinder compresser, which is driven by an electric motor 55. A fan 53 circulates air over a condenser coil 52, and a refrigerant receiver 60 is located in the baseframe. The motor circuit is controlled by a thermostat in the refrigerating-chamber.
Patent GB-978020-A (GB)
Title: Improvements in or relating to timing devices
Inventor: GORE GERHARD WERNER
IPC: B61L21/06
Filed: 1962-10-11
Abstract: 978,020. Route setting. MULLARD Ltd. June 6, 1963 [Oct. 11, 1962], No. 38565/62. Heading B7N. [Also in Division H3] Points 30, Fig. 3, in the path of an approaching train in section Y are locked for a predetermined period after a colour light signal 33 is changed to red, the arrangement preventing route switching from section W to section Z while the possibility exists of the points being changed under the train if the signal is overrun. As shown in Fig. 4, if the signal 33 is red an input is applied to an AND gate 38, and if an input 49 is also applied to the gate an output 50 is obtained which releases the point lock. The input 49 is obtained from an OR gate 37 which is opened by an input 44 indicating that section Y is unoccupied or by an input 45 if the section Z is occupied. Gate 37 is also opened by an input 46 which is obtained from the red light input 48 through a delay device 39 providing, for example, a 30-second delay. When an output is obtained from gate 38 a " stick " input is applied to the gate through gate 37. The input 44 is obtained from an AND gate 35 which is opened by a Y clear input 43 and a simultaneous input 42 from an OR gate 34, the latter gate being opened if section X is clear (input 40) or if colour light signal 31 is free of approach locking (input 41). Details of the delay device are disclosed (see Division H3).
Patent GB-834594-A (GB)
Title: Preparation of perchloryl fluoride
IPC: C01B7/24
Filed: 1956-12-19
Abstract: Perchloryl fluoride gas is prepared by interacting perchloric acid or a perchlorate with fluosulphonic acid.  The reaction may be carried out at a temperature not greater than the b.p. of fluosulphonic acid (about 163 DEG  C. at atmospheric pressure), preferably a temperature of 40-90 DEG  C.  Sodium, potassium, lithium, silver, magnesium, calcium, barium and nitrosyl perchlorates are specified.  The fluosulphonic acid may be admixed with the perchlorate as a commercially available product, e.g. a technical grade containing about 98% HFSO3, or as a crude reaction product produced for example by dissolving calcium fluoride in an excess of sulphuric acid or by absorbing sulphur trioxide in hydrofluoric acid.  The fluosulphonic acid may alternatively be formed in the presence of the perchlorate under the reaction conditions.  Sufficient fluosulphonic acid to completely dissolve the perchlorate, for example 6-12 times the stoichiometric amount when reacting with potassium perchlorate, is preferably employed.  The perchlorate is preferably added to the fluosulphonic acid.  Mixing of the reactants is preferably effected at room temperature.  Mixing should also be effected during the reaction if the perchlorate is in excess of its solubility limit. The perchloryl fluoride gas formed may be passed through a water-cooled reflux condenser and then through one or more scrubbers. The scrubbing liquid may be water or a solution containing up to 25% of each of sodium hydroxide and sodium thiosulphate.  The gas may be liquefied by cooling or compression and then vented to remove oxygen. The process may be batch-wise or continuous.  Fluosulphonic acid may be continuously recovered from the liquid reaction product by distillation for reuse in the process.  In a batchtype reactor the reaction may be completed in 2-24 hours.
Patent GB-355625-A (GB)
Title: Improvements in surface condensers
IPC: F28B1/02
Filed: 1930-12-23
Abstract: 355,625. Surface condensers. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Ingersoll-Rand Co. ; 15, Exchange Place, Jersey City, New Jersey, U.S.A.) Dec. 23, 1930, No. 38676. [Class 64 (iii).] The condenser A is divided by tube-plates into compartments 21 .. 24 with separate air outlets 26 .. 29 connected with exhausters operating in series. There is at least one more exhauster in the series connected with the coolest compartment 21, than in the series connected with the other compartments so that a higher vacuum is maintained in order to equalize the depth of steam penetration. As shown, air &c. from the compartment 21 passes to a cooler B, intercondensers C, D, and after-condenser E, the pressure being raised to atmospheric in three stages by steamjet ejectors 60, 66, 79. Air &c. from the compartments 22, 23, 24 passes through a cooler F, the inter-condenser D and the after-condenser E, the pressure being raised in two stages. The cooler F and condensers D, E, are each divided into two sections, the left-hand section serving the compartment 22 and the right-hand section the compartments 23, 24; air &c. from the intercondenser C also passes through the left-hand sections of D, E. Raw cooling-water is used in B, C, F, and in the lower tubes of the inter-condenser D, whilst condensate from the outlet 25 of the main condenser is passed through E and through the upper tubes of D. A throttle 30 is provided on the outlet 29 of the compartment 24, in order to equalize the steam penetration in compartments 23, 24.
Patent GB-1064717-A (GB)
Title: Cooling fans for vehicle engines
Inventor: ELMER ARTHUR ERNEST HENRY
IPC: F01P7/06
Filed: 1963-10-01
Abstract: 1,064,717. Axial-flow fans. DOWTY HYDRAULIC UNITS Ltd. Sept. 28, 1964 [Oct. 1, 1963], No. 38703/63. Heading F1C. In a fan for cooling the engine of a vehicle and arranged to be driven by the engine, the blade pitch is adjusted automatically during operation, in response to changes in the rotational speed of the fan, under spring-opposed centrifugal twisting moments which are inherent in the blades and which bias the blades in the pitch firing direction, supplementary pitch-adjusting means being provided to supplement the effect of the centrifugal twisting moments at relatively high rotational speeds to urge the blades to a low blade angle, to zero blade angle or just into the negative pitch range to ensure that the air flow through the fan does not reach values at which undesirable overcooling of the engine occurs. The cooling fan shown, mounted on the shaft of the water pump and driven by a belt from the engine crank-shaft comprises blades 16 each pivotally mounted on a stub 23 projecting from the fan hub 12. A double-looped torsion spring 18, extending between rivets 19 and 20, retains the blade radially with respect to the hub and also acts in opposition to the inherent centrifugal twisting moments of the blade tending to reduce the blade pitch as the rotational speed increases. When the fan reaches a relatively high speed, two flyweights 37, each mounted on a pivot pin 35 on a ring 24 bolted to the hub 12, each engage a pin 40 on a spider 28 and turn the spider relative to the hub against the action of tension springs 38. Projections 33 on the spider then engage pins 21 to turn the blades 16 through the zero pitch position and just into the negative pitch range. The pins 21 pass through elongated slots in the stubs 23, the slots acting as stops to limit the range of pitch adjustment.
Patent GB-1357368-A (GB)
Title: Polyglycidyl ethers of glycerine compositions
IPC: C08G59/04
Filed: 1971-08-18
Abstract: 1357368 Epoxy resin compositions DOW CHEMICAL CO 18 Aug 1971 [26 Aug 1970] 38720/71 Heading C3B A composition comprises a mixture of a polyglycidyl ether of glycerol (I) having an epoxide: hydroxyl equivalent ratio of at least 0À8 : 1; a polyhydroxyl compound (II); and a curing catalyst which is a tertiary amine (III) or a Lewis acid which catalyst is the sole curing agent and is present at 0À1-10% by wt. of I and II. The mixture has an epoxide : hydroxyl equivalent ratio of 0À5 : 1 to 1À8 : 1. II may be glycerol, trimethylolpropane or a hydrolysed diglycidyl ether of a bisphenol, e.g. of bisphenol A. III may be 2,4,6 - tris - (dimethylaminomethyl)phenol.
Patent GB-1017132-A (GB)
Title: Improvements in or relating to information stores
IPC: G11B25/04
Filed: 1961-12-05
Abstract: 1,017,132. Magnetic recording &c. apparatus. J. HANDLEY. Sept. 6, 1962 [Dec. 5, 1961; Feb. 16, 1962], Nos. 38776/62 and 38777/62. Divided out of 1,017,131. Heading G5R. The description is substantially the same as that of Specification 1,017,131 but the claims differ.
Patent GB-1168682-A (GB)
Title: Improvements in Electro Erosion Machinery.
Inventor: SMITH GORDON VICTOR
IPC: B23H1/02
Filed: 1967-08-23
Abstract: 1,168,682. Electro-erosion. SPARCATRON Ltd. 12 Aug., 1968 [23 Aug., 1967], No. 38788/67. Heading B3V. [Also in Division H3] Pulses for an electro-erosion apparatus are generated by a multivibrator having two transistors T 1 , T 2  cross-coupled by capacitors C 1 , C 2 , each transistor having a variable resistor R 1 , R 2  connected to its base through a respective field effect transistor 1, 2. The resistors R 1 , R 2  vary independently the mark and space periods, whereby the m/s ratio and the frequency are adjustable. Means is provided for sensing and indicating continuous arcing in the apparatus between the tool electrode and the workpiece.
Patent GB-1206207-A (GB)
Title: Process for dyeing cellulosic fibres with vat dyestuffs
IPC: D06P1/22
Filed: 1968-08-14
Abstract: 1,206,207. Dyeing cellulose with vat dyes. FARBWERKE HOECHST A.G. 14 Aug., 1968 [19 Aug., 1967], No. 38858/68. Headings D1B and D1L. Cellulosic materials are dyed with vat dyes by padding with an aqueous liquor containing one or more unreduced vat dyes (liquor uptake 60-80 per cent referred to the dry weight of the goods) padded again with an aqueous liquor containing an alkali and a reducing agent (liquor uptake 120-150 per cent referred to the dry weight of the goods), and then steamed. Preferably the material is given an air passage prior to vatting, the reducing agent preferably being sodium dithionite 10-80 gms/litre steaming being effected at 101-103‹C for 30-45 seconds. The diagram slows fabric 1 passed into pad mangle 2 containing liquor 3 through to nip rollers 4 over guide rollers 5 for air passage to U shaped trough 7 through liquor 8 to nip rollers 9 to steaming chamber 10. In nip 9 the upper roller rests on the fabric under its own weight.
Patent GB-1167235-A (GB)
Title: Ferroelectric Semiconductors
IPC: H01G7/02
Filed: 1967-08-23
Abstract: 1167235 Ferro-electric semi-conductors ATOMIC ENERGY OF CANADA Ltd 23 Aug 1967 [14 Sept 1966] 38874/67 Headings H3U UN U22 U30 U28 and U34 A ferro-electric semi-conductor is composed of a compound of elements from Groups IV B  and VI B  of the Periodic Table, having atomic weights greater than 16, the material being doped to provide regions of differing carrier type. The preferred materials are germanium telluride or a solid solution of germanium telluride and tin telluride in a 30:70 molecular percentage ratio. Lead telluride is also referred to. Pressure sensitive devices may be made from such materials. The example shown comprises an NPN (or PNP) device formed by suitably doping an intrinsic ferro-electric semiconductor, pressure being applied to an emitter junction 42. In a second embodiment an acoustic wave is amplified within such a material by the interaction of this wave with carriers drifting in a steady electric field at a velocity slightly greater than that of the acoustic wave. The ferro-electric semi-conductor may be used in single crystal form, or as polycrystalline material dispersed in a glass or ceramic matrix. The material is prepared by purification and diffusion, and is then heated above its Curie temperature and cooled in the presence of an electric field, thereby inducing a remanent polarization which enhances the pressure-sensitivity of the material.
Patent GB-888964-A (GB)
Title: Improvements relating to the production of alkyl aryl compounds
IPC: C07C5/32
Filed: 1958-12-03
Abstract: Alkyl aromatic hydrocarbons are obtained by the catalytic dehydrogenation at 370 DEG C.-580 DEG C. of alkyl naphthenes containing 14-26 carbon atoms.  The feed may also contain a minor proportion of paraffinic or olefinic hydrocarbons and may be the raffinate obtained by the solvent extraction of a cycle oil from cracking a gas oil or wax distillate fraction.  It is preferably hydrogenated before or after solvent extraction to remove sulphur and olefinic compounds, e.g. over cobalt and molybdenum oxides on alumina, molybdena on alumina or tungsten-nickel oxides or sulphides on alumina at 370 DEG C.-427 DEG C., 600-1,500 p.s.i.g., 1/2 -4 vol./vol./hr. and 1,000-4,000 SCF/B gas recycle. Dehydrogenation may be effected over alumina supported molybdena, cobalt and molybdenum oxides, nickel, platinum or chromia, the latter promoted with rare earth, bismuth, boron, germanium, manganese, iron beryllium or nickel with potassium, or a spinel. Suitable conditions are up to 200 p.s.i.g. and 0.1-2 vol./vol./hr. with or without added or recycle hydrogen.  The product may be selectively hydrogenated to remove olefinic but not aromatic unsaturation, e.g. over aluminasupported nickel, platinum, palladium or cobalt and molybdenum oxides or tungsten and nickel oxides or sulphides at 100-1,000 p.s.i.g., 100 DEG C.-480 DEG C., 0.5-8 vol./vol./hr. and 500-8,000 SCF/B gas recycle.  The product may be distilled to separate a cut boiling in the range 260 DEG C.-410 DEG C. which can be solvent extracted and the aromatic extract sulphonated.
Patent GB-877038-A (GB)
Title: Improvements in or relating to the production of olefinic hydrocarbons
IPC: C07C11/02
Filed: 1958-12-03
Abstract: Olefines are obtained by dehydration of one or more oxygenated compounds prepared by oxidation in the liquid phase of a paraffin containing at least 6 carbon atoms per molecule the dehydration being effected in the vapour phase in the presence of an active alumina. The paraffin may be a single compound or mixtures obtained e.g. by urea adduction of a gas oil, by distillation of a crude, or from a raffinate from a solvent extraction or may be a slack wax.  They are oxidised with air at 120-200 DEG C. at a rate of 30-360 litres/hour/100 g. of feed for 1-24 hours in the presence of 0.5-10% of potassium permanganate, manganese dioxide, or a mixture of 1 part of one of these with 1 part by weight of lead stearate.  Dehydration, preferably with concurrent decarboxylation, is effected in the vapour phase at 250-480 DEG C. and 0.1-2 vol./vol./hr. over gamma alumina.
Patent GB-850346-A (GB)
Title: Compressor or turbine stator
IPC: F01D9/04
Filed: 1958-12-03
Abstract: 850,346. Axial-flow compressors and turbines. GENERAL MOTORS CORPORATION. Dec. 3, 1958, No. 39070/58. Classes 110 (1) and 110 (3). The casing 10 of an axial flow turbine or, as shown, a compressor, is provided with pairs of circumferential ribs 33 which locate the stator vane ring segments 14 and the rotor blade shroud ring segments 16. Each segment of the stator vane ring has axially extending flanges 34 on the outer shroud 27 which bear at each side on the radially inner surface of one of the rings. The inner shroud 29 of the stator vanes 28 has brazed to it a seal member 31 which cooperates with seal ridges 32 on the rotor. The vanes 28 may be brazed to the shroud 27. The shroud ring 16 is of channel-section and has tapped blocks 36 brazed to it. Each block fits into the groove between two adjacent ribs 33 with the flanges 34 bearing against the block. Cap screws 38 pass through the casing to secure the assembly thereto. The inner surface of each shroud ring has a layer 41 of silver applied to it to provide a soft surface permitting small tip clearance. The rotor comprises wheels 17 having flanges 18, the wheels abutting to form a drum type rotor. The rotor blades have roots 21 inserted in dovetail slots 22 in each wheel and are retained therein by an expanding splitring 23 which engages a groove formed in both the blades and the wheel.
Patent GB-1080213-A (GB)
Title: Improvements in and relating to electrical distributors for internal combustion engines
Inventor: STARTIN KENNETH JOHN
IPC: F02P7/063
Filed: 1964-09-25
Abstract: 1,080,213. Interrupters. AMP Inc. Sept. 20, 1965 [Sept. 25, 1964], No. 39073/64. Heading H2B. In a contact breaker set for an ignition distributer 1 of an I.C. engine, the leaf spring 14 connected to the movable contact 12 has its free end releasably engaged in a recess (18, 19, Fig. 1) in a block 15, e.g. of nylon, and is formed with tabs 16, 17 for releasably receiving receptacles 20, 21 having leads to the condenser and ignition circuits. A pair of lugs (22, Fig. 1) projecting from the block 15 releasably snap fit around a projection (9, Fig. 1) on the metal base 5 of the contact set. To alter the ignition timing, the position of base 5 on the distributer is adjustable relative to the actuating cam (not shown).
Patent GB-1116079-A (GB)
Title: A method of making cereal malt
Inventor: TAHARA SANAE
IPC: C12C1/047
Filed: 1965-09-15
Abstract: A method of making a cereal malt includes the steps of substantially depriving the grain of germinative and root-developing energy by soaking the grain in a dilute ammonia solution, subjecting the grain to gibberellin, and thereafter subjecting the grain to malting processes.  There are employed (i) an ammonia solution containing 0.02 -0.5% ammonia by weight for 2-24 hours at 5-40 DEG C. and (ii) a 0.02-5 p.p.m. gibberellin solution, preferably applied as a fine spray, in amounts of 10-100% by weight of the cereal grain.  Before the treatment with ammonia, the grain may be steeped in water for a period insufficient to cause substantial growth of the germ and rootlets. After the treatment with ammonia, the grain may be soaked for 6 hours in a 0.05% sulphuric acid solution to whiten the colour, prior to the treatment with gibberellin. The subsequent modification of the treated grains is conducted by maintaining the moisture content of the grain at 38-42%.  Barley, rye, wheat and oats may be malted.
Patent GB-857779-A (GB)
Title: A new or improved method and means of and for cleaning the sealing surfaces of the doors and door frames of horizontal coke ovens
Inventor: RANDELL GEOFFREY EDWARD CHARLE
IPC: C10B43/04
Filed: 1957-12-24
Abstract: 857,779. Cleaning coke oven doors &c. WOODALL - DUCKHAM CONSTRUCTION CO. Ltd. Dec. 23, 1958 [Dec. 24, 1957], No. 39568/58. Divided out of 857,778. Drawings to Specification. Class 99(2). Apparatus for mechanically cleaning the sealing surfaces of self-sealing doors for horizontal coke ovens and of the door frames for receiving such doors, comprises a supporting structure adapted for arrangement adjacent to the sealing surfaces, a number of scrapers carried by the structure and movable relatively thereto for cleaning the surfaces, and means for mechanically moving the scrapers over the surfaces including turning selected scrapers around the corner portions of the surfaces located between the vertical or side and top and bottom portions respectively of the surfaces thereby to clean such corner portions. The apparatus is fully described in Specificaton 857,778. Specifications 682,811 and 857,780 also are referred to.
Patent GB-888248-A (GB)
Title: Hose coupling
IPC: F16L37/256
Filed: 1960-11-17
Abstract: 888,248. Hose couplings. BENDIX-WESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. Nov. 17, 1960 [Jan. 29, 1960], No. 39572/60. Class 99(1). A coupling member 12 for connecting flexible hoses comprises a body 16 having a lock rib 48 and a lock arm 54 formed of a separate unitary member of stamped, springy strip material, secured to the body and having an overhanging locking surface 50 complementary in shape with the rib 48 for releasable engagement with a lock rib 46 of a mating coupling member 10. The locking surfaces 50, 52 of the two lock arms 54, 56 are open at one end to receive the ribs 46, 48 and have a downwardly bent integral part at the other end to act as stops. An indentation may be formed in the centre of the locking surfaces to be received in a hole 82 formed in the mating lock ribs. The bodies of the coupling members may be cast from a relatively soft material and the lock ribs covered with wear resistant metal strips 90. A flange 86 may be formed at the ends of the lock arms to abut a surface 88 and prevent the couplings moving longitudinally towards each other. The lock arms are such that the locking surfaces will spring over the lock ribs if a force is applied that will break the flexible hoses.
Patent GB-1100655-A (GB)
Title: Improvements in or relating to cathode ray tube display oscilloscope instruments
Inventor: MIDDLETON JOHN DAVID
IPC: H01J31/12
Filed: 1965-09-20
Abstract: 1,100,655. Cathode-ray tube circuits. MARCONI INSTRUMENTS Ltd. 21 June, 1966 [20 Sept., 1965], No. 39998/65. Heading H4T A cathode-ray oscilloscope employs a known type of tube 1, Fig. 2, provided with a third pair of deflecting plates 2Y1, 2Y2 to which voltages of different pre-determined frequencies in fixed relationship and preferably of different pre-determined amplitudes are supplied from respective sources 6, 7 to produce calibration scale indications standing on the waveform displayed. The latter is produced by supplying the output of the unknown waveform source 4 via push-pull amplifier 5 to plates 1Y1, 1Y2 and the normal time base generator 8 is fed to plates X1, X2. The frequencies of 6, 7 are preferably in the ratio 1 : 10, source 6 producing the main divisions (S1, Fig. 1) and source 7 (of higher frequency) producing the subdivisions with reduced amplitude. The absolute frequencies of the sources 6, 7 may be varied in accordance with frequency of the continuous waveform whilst maintaining the fixed relationship.