baber/WOPTO huggingface dataset:
Patent GB-395630-A (GB)
Title: Improved method of constructing concrete piles under pressure in situ
IPC: E02D5/42
Filed: 1933-02-04
Abstract: 395,630. Concrete piles. BARR, G. F., Shrubs Hill Grange, Sunningdale, Berkshire. Feb. 4, 1933, No. 3464. [Class 68 (ii).] Concrete piles are in situ under pressure in a bore tube 1 by means of a pump 4, which pumps the concrete from a mixer 3 through a tube 2 to the tube 1 ; it is consolidated by admitting air to the upper end of the tube 1, which simultaneously is lifted. Specification 387,202 is referred to.
Patent GB-266691-A (GB)
Title: Improvements in the bleaching of fabrics
IPC: D06L4/30
Filed: 1927-02-08
Abstract: 266,691. Rohm & Haas Co., (Assignees of Hollander, C. S.). Feb. 25, 1926, [Convention date]. Bleaching and washing, processes and materials for.-When bleaching undyed cotton with which has been woven yarns dyed with dyestuffs fast to an alkali and chlorine bleach the preliminary boiling with alkali is effected in the presence of a compound which has a mono-cyclic or di-cyclic quinone-like structure or which is converted into a compound having such structure by heating in alkaline solution: bleeding of the dyestuff (" marking-off") is thereby prevented. Such substances are p.nitrosophenol, o-nitroso-mcresol, benzoquinone, naphthoquinones, and pnitrosodimethylaniline (which yields p-nitrosophenol when boiled with alkali). The heating with alkali may be effected under pressure. Examples are given according to which rolls of unbleached cotton materials having vat-dyed borders are heated under pressure or boiled with caustic soda solution with addition of nitrosophenol, nitroso-m-cresol, or nitrosodimethylaniline, and are then bleached with sodium hypochlorite.
Patent GB-454070-A (GB)
Title: Improvements in and relating to fluxes for brazing
IPC: B23K35/36
Filed: 1936-02-06
Abstract: A brazing-flux is made by adding 75-81 parts by weight of potassium acid fluoride to 37-43 parts of water, boiling the mixture until the fluoride is dissolved, adding 28-34 parts of solid boric acid and evaporating excess water to leave a paste having a volume substantially equal to that obtained by mixing 78 parts of the acid fluoride with 40 parts of water.  Water may be added to the paste to give the required consistency.
Patent GB-978086-A (GB)
Title: Edible fat compositions containing glycerides of tall oil fatty acids
IPC: A23D9/00
Filed: 1963-01-30
Abstract: Edible fats (see Division C5) are obtained from (a) triglycerides of tall oil fatty acids and (b) an edible fat having a C16- 18-fatty acid content higher than that of the tall oil fatty acids by (i) randomly interesterifying blends of (a) and (b), (ii) by reacting (b) with glycerol and then further reacting the product with tall oil fatty acids, or (iii) by reacting (b), glycerol and tall oil fatty acids together.  (i) is suitably performed in the presence of sodium methoxide as catalyst, while (ii) and (iii) are generally carried out in the presence of SnSO4 or SnCl2.2H2O; in (iii) a small amount of soap flakes may also be added. Particularly suitable fats (b) are beef tallow, hydrogenated tallow and palm oil.  Specification 978,085 is referred to.ALSO:Edible fat compositions, which provide suitable bases e.g. for margarine, comprise (a) triglycerides of tall oil fatty acids and (b) an edible fat having a C16-18-fatty acid content higher than that of the tall oil acids.  The compositions may be produced (i) by merely blending (a) and (b), (ii) by randomly interesterifying (a) and (b), (iii) by reacting (b) with glycerol, and then further reacting the product with tall oil fatty acids, or (iv) by reacting (b), glycerol and tall oil fatty acids together. (ii) Is suitably performed in the presence of sodium methoxide as catalyst, while (iii) and (iv) are generally carried out in the presence of SnSO4 or SnCl2.2H2O; in (iv) a small amount of soap flakes may also be added.  The products of reactions (i) and (ii) usually have a Wiley M.P. of about 47 DEG  C., while the product of reaction (iv) normally has a Wiley M.P. of 30-40 DEG  C. and is then blended with a harder fat to produce a product having a Wiley M.P. of about 47 DEG  C.  Particularly suitable fats (b) are beef tallow, hydrogenated tallow, and palm oil.  If desired, the product may be hardened by hydrogenating at upwards of 375 DEG  F. under a pressure of 5 p.s.i.g. in the presence of 0.05% nickel as catalyst. Specification 978,085 is referred to.
Patent GB-749927-A (GB)
Title: Mechanical pencil
IPC: B43K21/18
Filed: 1954-02-10
Abstract: 749,927. Pencil holders. NORTHERN INDUSTRIAL PRODUCTS. Feb. 10, 1954 [March 4, 1953], No. 3879/54. Class 146(3) A propelling pencil comprises a pair of co-operating racks having opposed ratchet teeth, a lead-engaging plunger having a' head extending between the opposed teeth, and means for longitudinally displacing one rack with respect to the other rack, whereby to move the plunger from a position with its head in engagement with a tooth of one rack to a tooth of the other rack. As shown, a movable outer tube 28 Fig. 1, surrounds an inner tube 27, both tubes being slotted and formed with ratchet teeth 32 and 30 respectively. A plunger 36, preferably having a cover 37 to provide slight friction between the plunger and tube 27, engages the rear end of a lead, while its rear end 35 engages the ratchet teeth 32 and 30 so as to hold the lead in projected position. A cap 22, slidable over the barrel 20, is depressed to advance the lead beyond a tip 21 having a slit 26. The cap is connected to the tube 28 by means of an extension 41 of a clip 23. The extension 41 has a hole 42 through which the tube 28 passes, the tube 28 having lugs 44 engaging the lower face of the extension, while the rear end is deformed, such as by forming a lug 51 Fig. 16, to lock the tube 28 and extension together. A spring 55 has its rear end fitted into a notch 43 in the extension 41 and its forward end secured to the barrel, such that depression of the cap 22 causes rotation of the cap 22 and so rotation of the tube 28 with respect to the tube 27. Ears 60 formed on the rear end of the tube 27 prevent retraction of the tube 28 beyond the tube 27; the ears 60 enter cavities 50 on counterclockwise rotation of the cap 22, the plunger end 35 Fig. 1, being free to slide in this position of the ears to permit its retraction in the barrel 20. When the ears 60 are disengaged from the cavities 50, the tubes 27 and 28 are rotated by the spring 55 to engage the plunger end 35. Depression and release of the cap 22 causes the tube 28 to move axially forward and so project the plunger 36, such that the plunger end 35 engages and is locked by the teeth 30 of the tube 27, while the teeth 32 ride over the plunger end 35.
Patent GB-797959-A (GB)
Title: Improvements in or relating to the preparation of insulin
IPC: C07K14/625
Filed: 1956-02-08
Abstract: Insulin is prepared from an insulin containing acidified alcoholic pancreatic extract by contacting said extract with a cation exchanger, eluting the insulin therefrom and precipitating the insulin from the eluate, e.g. by saturating the eluate with sodium chloride.  The extract, which may have a pH of at least 3, may be cooled to about -5 DEG  C. and centrifuged to separate solid fats and proteins prior to contacting with the cation exchanger. Neutral salts and proteinaceous impurities may be precipitated by rendering the extract neutral or about pH 8 with ammonia, the filtrate being then adjusted to pH 3 by contact with a sulphonated highly criss-linked cation exchanger, e.g. "Dowex," which is removed and the separated liquor contacted with the carboxylic cation exchanger.  The cation exchanger may be a synthetic or naturally occuring carboxyl group-containing material, e.g. "Amberlite" (Registered Trade Mark), oxycellulose, pectic acid or alginic acid and the elution may be effected with a mineral acid, e.g. sulphuric or hydrochloric acid. The alcohol used in the extraction of the pancreas may contain from 1 to 4 carbon atoms, e.g. methanol, ethanol, and may be acidified with an organic or inorganic acid, e.g. acetic, citric, oxalic, hydrochloric acid.
Patent GB-1171801-A (GB)
Title: Apparatus intended for Attaching Fixing Means to Conveyor Bands, Belts and other Bands.
Inventor: SCHICK JULES
IPC: F16G3/00
Filed: 1967-01-27
Abstract: 1,171,801. Belt-fastening appliances. SOC. ANON. GORO. 27 Jan., 1967 [7 Feb., 1966], No. 4062/67. Heading F2Q. Apparatus for attaching U-shaped fasteners 11 to the end of a belt 10 by means of staples 4 comprises a staple-guiding member 5 adjustably secured to an anvil 2 by bolts 6, and a punch-carrying carriage 13 slidably mounted on the member 5. The staples 4 are positioned in holes 9 in the member 5 and are driven through the belt 10 and fasteners 11 by a punch 15 operated by levers 16, 17. An adjustable screw 22 has a head 23 engaging the lower surface of the anvil 2 to ensure that no undue force is applied to the belt 10. The fasteners 11 are mounted in a comb-like supporting frame 26. The punch 15 is located in accurate register with each hole 9 by a ratchet 25 engaging notches 24 in a flange 12.
Patent GB-1029753-A (GB)
Title: Logic system
IPC: H03K19/10
Filed: 1963-02-01
Abstract: 1,029,753. Semi-conductor switching circuits. SPERRY RAND CORPORATION. Feb. 1, 1963 [Feb. 14, 1962], No. 4133/63. Heading H3T. A logic circuit comprises a tunnel diode which may be switched to its high voltage state by pulses applied to it when a predetermined input signal is also applied to it, and means for resetting the diode to its low voltage state. In the embodiment of Fig. 3 an AND circuit (P 1  stage) comprises a number of input diodes 302 of the type requiring an input threshold to switch them to their low resistance region, connected to a tunnel diode 300, the tunnel diode being biased to its low voltage region by a bias supply 306. Co-incident application of a clock pulse from " CLOCK A " 308 and a " high level " input signal on all diodes 302 causes the tunnel diode to switch to its high voltage state. The tunnel diode may then be reset by a " reset " pulse from source 315. The output from the circuit is fed to an OR circuit (N 1  stage) which comprises a similar circuit with the diodes and sources connected in reverse polarity. The output from this stage is then fed to an " Inverted AND " stage P<SP>1</SP>. In this stage, the tunnel diode 330 is provided with a balanced bias supply, the input signal being applied to the cathode of the diode 330, and the output being taken from the anode and fed via diode 338 to a further OR stage N 2 . The clock pulse source for the four stages are arranged in phase quadrature, Fig. 4 (not shown). In an alternative embodiment, Fig. 5 (not shown), single sources are used to provide both set and reset pulses. The arrangement shows an AND stage an " inverted OR " stage a second AND stage and an OR stage.
Patent GB-252233-A (GB)
Title: Improvements in or relating to plug and socket electric couplings
IPC: H05K7/06
Filed: 1925-02-16
Abstract: 252,233. Rider, J. J. Feb. 16, 1925. Plug couplings.-A socket for plug-and-socket couplings, valve-holders, &c. is adapted to pass through a plate a. of insulating material and has an integral tongue g to which a conductor can be secured. A shoulder h, that may be formed by turning down the edge of the blank from which the socket is formed, and lugs k, that are spread when the socket is in place, hold the socket in position. The socket may be split at one or more points e. The tongue g may have a channel-shaped termination i, and may be attached to the edge of the shoulder h instead of to the base of the socket. The lugs k may engage with a recessed shoulder if the thickness of the plate a is greater than the length of the socket.
Patent GB-662064-A (GB)
Title: Improvements in or relating to the freezing of foodstuffs in refrigerator chambers and the like
IPC: F25D11/00
Filed: 1949-02-17
Abstract: 662,064. Refrigerators. ELECTROLUX, Ltd. Feb. 17, 1949 [March 2. 1948], No. 4339/49. Class 29 In a cabinet 10 cooled by absorption refrigerating apparatus 11 of the continuous cycle inert gas type, cold accumulators 17, cooled during periods of light load, are utilized during periods of increased load to freeze foods in the chamber, the food packets 19 being located between the charged accumulator plates are subjected to pressure. The refrigerator is intended for storing deep-freeze foods in packages 16 and the accumulators 17 are cooled during normal working when space is available. Non-frozen food packets 19 are then placed between the accumulators for deep freezing the pressure being produced by the weight of the plates. The accumulators may he arranged vertically, being pressed on the packets by a resilient clamp. The edges 21 of the accumulator plates are folded over, soldered and coated with asphaltic lacquer, and filling openings 22 are provided for the eutectic which may include an anticorrosive, e:g. sodium nitrate, potassium chromate or sodium chromate. The cabinet is cooled by an evaporating-condensing heat transfer system 13 in contact with the inner lining 14 of the chamber.
Patent GB-246325-A (GB)
Title: Improvements in variable electric resistances
IPC: H01C10/28
Filed: 1925-02-17
Abstract: 246,325. Smith, J. F. Feb. 17, 1925. Variable resistances; resistance coatings. - A variable resistance, especially suited for use as a grid-leak is provided with a rolling contact formed by a ball or roller moved over the resistance unit by a moving arm. In the form shown the ball 22 rolls in a groove 5 in an insulating block 1. The groove 5 is lined with a coating 6 of graphite or similar material connected to terminals 4 at the ends of the block 1. The ball 22 makes contact with the coating 6 through a string 7 impregnated with graphite &c. The ball 22 is moved by an arm 19 on a spindle 15 with a milled head 16, being held in a slot 21 in a spring blade 20 disposed inside the arm 19. Specification 236.975 is referred to.
Patent GB-345756-A (GB)
Title: Improvements in or relating to means for obtaining unidirectional electric current at constant potential difference
IPC: H02M1/14
Filed: 1930-02-08
Abstract: 345,756. Converting pulsating currents into steady continuous currents. BROWN, S. G., Western Avenue, North Acton, London. Feb. 8, 1930, No. 4356. Drawings to Specification. [Class 38 (ii).] For converting pulsating indirectional currents into steady continuous currents suitable for feeding wireless sets &c. one or more electrolytic condensers providing a total effective capacity in shunt with the supply of at least 50 microfarads are employed without inductances. The invention is shown in connection with a conventional full-wave rectifier, two electrolytic condensers each of 250 microfarads capacity being connected in series with each other across the output terminals with which are associated the usual potential-dividing resistances for providing various anode voltages and grid bias. Reference has been directed by the Comptroller to Specifications 2313<A>/88, [Class 38, Electricity, Regulating &c.], and 269,544, [Class 38 (i), Electric couplings &c.].
Patent GB-348185-A (GB)
Title: An improved device for casting printers' type, spacing media, and the like
IPC: B41B5/04
Filed: 1930-02-10
Abstract: 348,185. Casting type, stereotype, &c. PHILLIPS, J. E., 40, Langherne Road, and THACKERAY, A. G., 1, Watery Lane, both in Worcester. Feb. 10, 1930, No. 4372. [Classes 100 (ii) and 100 (iii).] A device for casting type, stereotype, spacing material, &c., which is applicable for the duplication of type, comprises a box-like base a, Figs. 1 and 4, open at the top and at one side, and an angleshaped closure-plate b, Fig. 3, containing a hopper or inlet b<2>, together with one or more adjustable partitions to be placed in the base-member. In the use of the device for duplicating type, the types h to be copied are placed in the base-member against a partition c, which is supported by furniture or packing e. The types are clamped together by a screw-member g, Fig. 1, and are separated by partitions f, which are omitted when a word is to be cast. The closure-plate is clamped on the base, and matrices are cast from the type, duplicate type being then cast from the matrices. Spacing material may be cast between a number of separated partitions. The closure-plate b has an adjustable member b<3> for limiting the length of the inlet, and a spring-pressed member b<4> serves, when struck with a hammer, to break away the metal left in the inlet. Specification 336,187, [Class 83 (i), Casting &c. metals], is referred to.
Patent GB-633283-A (GB)
Title: Improvements relating to abrasive devices
IPC: B24D15/00
Filed: 1948-02-14
Abstract: 633,283. Abrading tools. WHITTLE, C., and BERCOVITCH, M. J. Feb. 14, 1948, No. 4396. [Classes 60 and 61 (ii)] An abrasive device comprises a support, an abrasive block secured thereto and formed with perforations opening into its working surface, and means for forcing a fluid through the perforations; a shaving and scraper blade may be adjustably mounted at one end of the support. A handheld device for abrading or burnishing metal or other articles, preparing surfaces for painting or enamelling, or for similar purposes, comprises an abrasive block c secured to a wood block a having pivoted thereto a handle b. The working face of the block has grooves f communicating with perforations g which register with holes h in a tube d fitted in a recess in the block, the tube d has a nipple e for the attachment of a fluid supply line for steam, water or other liquid, e.g. a solvent, or compressed air. A shaver and scraper blade j is adjustably fixed on the end of the block by a wing nut n.
Patent GB-543823-A (GB)
Title: Improvements in electric heating pads
IPC: H05B3/34
Filed: 1941-04-04
Abstract: 543,823. Electric heating pad. UNITED STATES RUBBER CO. April 4, 1941, No. 4514. Convention date, April 24, 1940. [Class 39 (iii)] A flexible electric heating unit, adapted for use in a pad comprises a sheet of flexible non- metallic material provided with a coating of conducting composition and with conducting wires along two opposite edges. The pad may contain two units 2, 3 each comprising a fabric sheet coated by dipping, painting, or spraying with a composition containing rubber 100 parts, carbon black 85 parts, zinc oxide 15 parts, anti-' oxidant 0.75 parts, accelerator 2 parts, deodorant 0.1 part, softener 7 parts, vulcanizer 0.75 parts, gasoline 1500 parts. The fabric may be of cotton, asbestos, rayon, or woven glass, or a sheet of rubber may be used as a base, or the composition may itself comprise the sheet. The edges of the sheet are turned over at 7 and vulcanized. The units 2, 3 may be of different resistances and may be connected to a switch 14 which allows either to be used separately, or the two in parallel or series. A thermostat 11 may be included in the circuit. The units are enclosed between woven sheets 18, 19, 20, of cotton, asbestos, or glass, treated with an ordinary rubber composition, and the whole may be enclosed in a fabric envelope 21.
Patent GB-490674-A (GB)
Title: Improvements in telephone systems
IPC: H04M9/00
Filed: 1937-02-15
Abstract: 490,674. Intercommunication systems. TELEPHONE MANUFACTURING CO., Ltd., FLINT, J. G., and RYALL, L. E. Feb. 15, 1937, No. 4518. [Class 40 (iv)] In a system comprising master loud-speaking stations and ordinary stations, the master stations use a stable type of microphone, e.g. moving coil, which is insensitive and an amplifier is provided to bring the speech level approximately to that of a carbon granule instrument. Voice-operated switching equipment which may include further amplifiers and is separate from the first mentioned amplifier, is used on calls between master stations. In the system shown in Fig. 1, connections are set up between master stations M and ordinary stations S by known intercommunication methods, the master stations being provided with individual microphone amplifiers. A recording apparatus REC is also provided. In the case of a large system including facilities for conference calls and for giving calling signals for absent parties, the number of keys becomes excessive, and calls may be set up by one or more registers which may be common to the master stations, and are set by dialling. In the case of a single register and particularly when two digits are required, a timing device such as a thermostat is provided to release the register if standstill occurs. The microphone amplifiers may be common to a number of master stations. In the system shown in Fig. 3, channels marked major and minor are used for calls between master stations and all other calls respectively, the major channels being provided with voice-operated switching equipment. If there is no major channel available, communication between master stations may occur over a minor channel in which case one of the parties will be given a signal to use his hand-set in view of insufficient amplification for full loud-speaker operation. The number of major channels need not exceed half the number of master stations. The amplifying equipment is fed from a common point over the speaking leads. Specification 430,158 is referred to.
Patent GB-229710-A (GB)
Title: Improvements in or relating to polyphase induction machines
IPC: H02K17/38
Filed: 1925-02-18
Abstract: 229,710. Siemens - Schuckertwerke Ges. Feb. 19, 1924, [Convention date]. Alternating-current induction machines.-In a regulating set comprising an induction machine cascaded with a commutator machine, the rotor of the commutator machine is excited at a frequency dependent upon the periodicity of the supply, the number of revolutions of the induction machine, and the number of revolutions of the commutator machine. In one arrangement, Fig. 1, an auxiliary exciter 4 is employed with differential gears 5, 7 to give the desired dependency of frequency to the commutator machine 2. The right-hand element of the gear 5 is driven at a speed dependent upon the frequency of the synchronous machine 6 and the speed of the induction machine 1, and the right-hand element of the gear 7 is driven at the speed of the commutator machine. In another arrangement, Fig. 2, one member of the auxiliary exciter 4 is driven through gearing 8 at a speed dependent upon the supply frequency through the synchronous machine 6, and the speed of the commutator machine; the other member of the exciter rotates with the induction machine 1. In another arrangement, Fig. 3, differential gearing is dispensed with and one member of the exciting machine 4 is driven at the speed of the commutator machine, the other member being driven by the induction machine and also fed at supply frequency. In another arrangement, Fig. 4, the commutator machine is excited from an asynchronous motor 9 the primary of which is connected to a frequency converter 10 driven at the speed of the commutator machine and fed at supply frequency through a transformer 11. Separate circuits for speed and power-factor regulation may be incorporated; for example, themachine 9 may be provided with two windings displaced by 90‹, or alternatively, two frequencyconverters may be employed, or two transformers with voltages displaced by 90‹. The machines 9 and 10 may be interchanged. The invention includes the use of auxiliary machines with continuous-current excitation. The driving motor 3 may be dispensed with and the machines 1, 2 flexibly coupled.