baber/WOPTO huggingface dataset:
Patent GB-427895-A (GB)
Title: A high-frequency line, in particular a high-frequency cable with conductors concentrically arranged
IPC: H01B11/16
Filed: 1933-10-28
Abstract: 427,895. Loading. SIEMENS & HAI,SKE AKT.-GES., Siemensstadt, Berlin. Oct. 28, 1933, No. 29983. Convention date, Nov. 15, 1932. [Class 40 (iv)] [See also Group XXXVI] A high-frequency line comprising spaced concentric conductors is loaded with Pupin coils interposed in the central conductor, the cores of the coils having a permeability of 10 or less and having small iron losses. To obtain the latter result, magnetic powder cores are used in which the proportion of insulating material is more than a third of the whole. The central conductor 11 is broken at a loading point and the ends are rigidly joined by an insulating member 12 about which the annular loading coil 14 and its core 13 are arranged. Specification 403,368, [Group XXXVI], is referred to.
Patent GB-639021-A (GB)
Title: Manufacture of diamino-diphenyl-ureas
IPC: C07C275/40
Filed: 1947-11-11
Abstract: Diamino-diphenyl-ureas may be obtained by the condensation of a diaminobenzene, in which the amino groups are not in the ortho position to each other, with urea in an aqueous medium at a raised temperature.  Suitable diamino benzenes are 1-methyl-2 : 4-diaminobenzene, 1-methoxy-2 : 4-diamino-benzene, 1 : 4-diamino-2-chlorobenzene, 1 : 4-diaminobenzene - 2 - carboxylic acid, 1 : 4-diaminobenzene-2-sulphonic acid and especially 1 : 4- and 1 : 3-diaminobenzene.  When the diaminobenzene is metaphenylene diamine it is desirable to conduct the reaction in the presence of an acid binding agent, preferably in the presence of 4 equivalents of sulphuric acid.  In examples: (1) paraphenylene diamine is heated with urea in water to give 4 : 41-diamino-diphenyl-urea, a dichlorinated 4 : 41-diamino-diphenyl-urea, may be obtained in an analogous manner from 1 : 4-diamino-2-chlorobenzene and urea and (2) meta-phenylene diamine and urea are heated in aqueous sulphuric acid to give 3 : 31-diamino-diphenyl-urea.  Specification 254,667, [Class 2 (iii)], is referred to.
Patent GB-951173-A (GB)
Title: Improvements in light fittings
Inventor: LAYZELL PETER ROBERT
IPC: F21V17/00
Filed: 1962-08-03
Abstract: 951,173. Electric light fittings. THORN ELECTRICAL INDUSTRIES Ltd. Aug. 3, 1962, No. 30014/62. Heading F4R. A light fitting comprises a support for the lamp or lamps and a cover having two inwardly extending flanges on opposite parts, the cover being secured to the support by two members which engage one under each of the flanges, are biased towards one another by springs and thrust outwards against spring bias to engage under the flanges of the cover by a common operating member. In the form shown for a fitting employing fluorescent lamps 11, the support is in the form of a spine 10 and carries on the underside two rectangular metal frames 15, 16 (not shown) moving in channels on the spine 10, the outer ends 17 of the frames being cranked downwards to engage under the inwardly directed flanges 13 of a trough-shaped cover 12. The inner ends of the frames are drawn together by springs and engage in opposite sides of a parallelogram shaped cam 21 operable by a tab 25 to thrust the ends of the frames outwards under the flanges 13. The flanges 13 extend all way round the cover 12 and have upstanding walls 14 on the inner side which make wiping contact with a neoprene strip 30 when the cover is in place.
Patent GB-280552-A (GB)
Title: Improvements in colorimeters
IPC: G01N21/29
Filed: 1927-11-09
Abstract: 280,552. Zeiss, C., [Firm of], (Assignees of Lorber, L.). Nov. 10, 1926, [Convention date]. Colorimeters for the quantitative determination of the percentage of a colouring matter added to a coloured or turbid solvent consist of a. frame 1 carrying two glass rods 24, 24‹ and two transparent liquid receptacles 8, 8‹, between which may be moved by rack and pinion independently two transparent liquid receptacles 11, 11<0>. The moving receptacles 11, 11<0> are mounted on slides provided with percentage scales moving under a mark 20. Light is reflected by a mirror 7 through the receptacles and the rods to a double prism 28 and then examined by the eye-piece 30. In use, the receptacle 11<0> is filled with undiluted coloured solvent and the receptacle 8<0> with colouring matter of known concentration. The scale is set until the index 20 indicates 50. The thicknesses of the liquids are then equal. The receptacle 11 is then filled with the colouring matter diluted to half strength and the receptacle 8 is filled with the coloured solvent to be examined, also diluted to half strength. The milled head 23 is then actuated until the parts of the field of view are of the same colour. The strength of the solution may be determined by a comparison of the reciprocals of the readings on the two scales on the slides.
Patent GB-998329-A (GB)
Title: A mixer
Inventor: PAGE VICTOR JOHN
IPC: B01F7/00
Filed: 1962-08-03
Abstract: 998,329. Mixing liquids. NEUMO Ltd. Nov. 1, 1963 [Aug. 3, 1962], No. 30042/62. Heading B1C. A mixer for synthetic resin and hardener has a mixing chamber 2, two or more impellers 31, 32, 33 rotated by the shaft 30 in a direction to oppose the flow of materials (which are supplied under pressure), a rotatable or fixed apertured disc 35, an inlet 42 opening into an annular chamber 40 surrounding the shaft, and at least one other inlet 28. The mixing chamber housing 1 may be detached by unscrewing the nut 22, and the blades 31, 32, 33 by unscrewing the nut 19. There may be more than one disc 35; there are cooling fins 10. The conical end wall member 25 and the boss 38 are made of P.T.F.E. The mixer may be used for batch operation by attaching a suitable valve to the outlet 4.
Patent GB-509595-A (GB)
Title: Machine for moulding concrete conduits
IPC: B28B21/12
Filed: 1938-11-03
Abstract: 509,595. Moulding concrete &c. conduits. NORMAN, J. W. E. Nov. 3, 1938, No. 30069/37. [Class 87 (ii)] In machines for moulding conduits from concrete or other plastic material comprising a number of rotating plungers or cores 1 vertically suspended from a verticallymovable carriage 4 and adapted to enter one or more moulds 6, tamping rods 9 are provided around the cores and gradually rise during moulding, the rods being suspended from a movable platform 10 carrying means for vibrating them. The cores 1 may be rotated about their axes by gearingorflexible cables from an electric motor 3. The carriage 4 is raised and lowered from a winch 5. The platform 10 is moved by cables 11 and a clockcontrolled winch 15 and the tampers may be reciprocated by cams 13 from a motor 14. The tampers may be operated by mounting electric or pneumatic vibrators on the platform 10 or successively from a cam track. They may drop under spring action. The cores may be provided with inclined presser elements as described in Specification 462,431. The carriage 4 may be counterbalanced. The mould 6 may be in two parts mounted on a base 7 having apertures 8 engaged by the cores. The mould may be shaped as at 19 to provide a socket end and may be provided with vibrators 18.
Patent GB-785461-A (GB)
Title: An electric asymmetrically conductive system
IPC: H01L23/427
Filed: 1954-10-19
Abstract: 785,461. Semi-conductor devices. LICENTIA PATENT-VERWALTUNGS-GES. Oct. 19, 1954 [Oct. 19, 1953], No. 30098/54. Class 37. In a semi-conductor device enclosed by a hermetically sealed casing, parts of which are connected mechanically and electrically to the semiconductor body, the casing is designed to allow for relative movement between these parts by elastic deformation to reduce stresses on the body due to thermal expansion. Corrugations provided for this purpose also increase the cooling surface. As shown in Fig. 4, the container consists of two similar flexible walls, between which the device is sandwiched, and a sealing ring of insulating material. The shape is such that in any position the device is covered by cooling liquid 27 which boils near the working temperature and may be alcohol, carbon tetrachloride or a mixture of diphenyl and diphenyl oxide. In a similar construction, the walls are corrugated discs, Fig. 2 (not shown). In another construction, Fig. 3, using cooling liquid 21, a substantially cylindrical casing has a corrugated wall 19 and an end plate 18 of insulating material in which is mounted a terminal plate connected to the semi-conductor device by a corrugated cylinder 20. In a similar construction, Fig. 1 (not shown), the latter cylinder is replaced by a metal rod which projects through an insulating end plate.
Patent GB-539293-A (GB)
Title: Compounded mineral oil
IPC: C07F9/02
Filed: 1939-11-15
Abstract: 539,293. Phenates, organic phosphate salts. STANDARD OIL CO. OF CALIFORNIA. Nov. 15, 1939, No. 30164. Convention date, Nov. 25, 1938. [Class 2 (iii)] [Also in Group III] Metal phenates are prepared by reacting an alkylated phenol, which may be alkylated by means of an olefine or olefine polymer with a compound supplying the appropriate metal. Specified phenates are sodium laurylphenate and cetylphenate, calcium laurylphenate, cetylphenate, di-n-amylphenate, heptylphenate, p-tertiary-amylphenate, monochoro-n-amylphenate, p-cyclohexylphenate and cetylcresylate, aluminium laurylphenate, cetyl - phenate, cetylphenate and dicetylphenate, magnesium cetylphenate and barium cetylphenate. Beryllium, strontium, zinc and cadmium phenates are also mentioned. Metal salts of alkyl- and aryl-phosphoric acids used, with the phenates in lubricants, may be obtained by re-fluxing for several hours the appropriate alcohol or phenol with phosphorus pentoxide in ethyl ether, hydrolyzing the resulting alkylethyl- or arylethylphosphoric acid and converting the product into the metal salt either directly or by way of precipitation from a solution of the sodium or potassium salt. The calcium salts may also be obtained by reaction of the free acids with calcium carbide and certain aluminium salts by reaction of the free acids with aluminium chloride. Specified salts are aluminium, calcium or magnesium lauryl phosphate, cetyl phosphate, octodecyl phosphate, " spermol " phosphate, oleyl phosphate, " spermenyl phosphate, cetylphenyl phosphate, di-(amylphenyl) phosphate or naphthenyl phosphate, and aluminium, calcium, barium, chromium or magnesium di-cyclohexyl phosphate, di-stearoglyceryl phosphate, tetrachlorooctodecyl phosphate, di-(6 chloro- 2-phenylphenyl) phosphate and di-(3-methyl- 4-chlorophenyl) phosphate. Iron, cobalt, nickel, tin, zinc, lead and strontium salts are also mentioned. Mono-octodecyl-phosphoric acid is obtained by hydrolysis of the product of the action of phosphorus oxychloride on octodecanol in benzene. Di-(6-chloro-2-phenylphenyl)-phosphoric acid and di-(amylphenyl)-phosphoric acid are obtained by heating the corresponding phenols with phosphorus pentoxide to 185‹ F.
Patent GB-727925-A (GB)
Title: Automatic control for material reduction mills
IPC: H02P29/00
Filed: 1952-11-28
Abstract: 727,925. Automatic control systems. WESTON, D. Nov. 28, 1952 [Nov. 30, 1951; April 15, 1952], No. 30248/52. Class 38 (4). In a system for maintaining a predetermined power input to a material reduction mill, rate of feed is automatically adjusted in accordance with the sense and magnitude of the difference between an electric signal continuously dependent on power input and a similar reference signal. As shown in Fig. 2 a current transformer 122 is associated with the input to an electric motor 111 driving a material reduction mill so that a D.C. signal proportional to motor power is produced across a condenser C202. A photo-cell and light beam unit 124 is associated with a conduit through which the mill products are transported pneumatically, so that a D.C. signal inversely proportional to mill output is produced across a resistor R203. An opposing voltage from a potentiometer R202 ensures that the mill output signal is zero under optimum conditions. The two D.C. signals are thus added in a network to which a reference voltage, corresponding to the sum of the signals for optimum efficiency of the mill, is applied from a potentiometer R208, and the arrangement is such that a D.C. signal of polarity and magnitude corresponding to the sense and magnitude of error is applied to the input of a two-stage thermionic valve amplifier comprising triodes V203, V204 controlling the saturating current of reactors SR201, SR202 in phase-shift circuits respectively associated with pairs of thyratron valves V206, V207 and V208, V209. The pairs of thyratrons respectively energize electrical vibrator units 118, 119 controlling the rate of feed of coarse and fine material to a conveyer (not shown) feeding the mill so that the two feeds are automatically and simultaneously adjusted until optimum working of the mill obtains. A maximum rate of feed limit is set by a potentiometer R229 controlling the grid voltage of a triode valve V205 constituting a separate anode supply to amplifier triode V204, while a minimum rate of feed limit is set by a potentiometer R226 in a shunt circuit to triode V204. The ratio of relative adjustment of the coarse and fine feeds is adjustable by a potentiometer R225. A system involving only the signal proportional to motor power without the signal inversely proportional to mill output is referred to. In a modification the signal inversely proportional to mill output is derived from the output of a microphone responsive to the sound of the mill. Derivation of a signal dependent on mill output from infra-red, radio, supersonic or radio-active detectors is referred to. Specifications 632,532, 696,137, 696,149, 696,164 and 699,386, [all in Group II], are referred to.
Patent GB-1086275-A (GB)
Title: Improvements in and relating to concrete girder combinations
IPC: E04C3/04
Filed: 1965-07-16
Abstract: 1,086,275. Reinforced concrete structures; metal beams. Y. ZEHNLE. July 16, 1965 [July 27, 1964], No. 30415/65. Headings E1K and E1W. A reinforced concrete structure comprises a metallic girder 1, Fig 1, with a longitudinally undulating upper flange, Fig. 9, and metallic tie means 3 embedded in the concrete and extending downwardly beside and spaced from the girder. The web of the girder may be formed on each side with anchoring projections, structions or grooves. The metallic tie means may comprise webs of welded latticework or expanded metal or may comprise serpentine or crenellated rods or an inverted U-shaped lattice web embracing the girder. Means for supporting a suspended ceiling may be clamped to exposed edges of the lower flange of the girder, Fig. 18 (not shown).
Patent GB-696501-A (GB)
Title: Improvements in or relating to the manufacture of titanium compounds
Inventor: EVANS ARTHUR WALLACE
IPC: C01G23/00
Filed: 1950-12-14
Abstract: In the manufacture of titanium dioxide pigments from mineral rutile, the latter is admixed with an oxide or carbonate of an alkali or alkaline earth metal or of magnesium and heated, in the absence of carbon, at 800-1100 DEG C to form a mixed titanate containing a high proportion of TiO2, say 80 per cent by weight.  A suitable reaction mixture consists of 50-80 per cent mineral rutile, 10-40 per cent soda ash and 5-40 per cent chalk. On digestion with, say, 94 per cent sulphuric acid, the product yields a dry, porous mass readily soluble in water or dilute sulphuric acid.  Specification 408,215 is referred to.
Patent GB-849683-A (GB)
Title: Improvements in aluminium bronze
Inventor: KLEMENT JOHN FRANCIS
IPC: C22C9/01
Filed: 1957-09-30
Abstract: An aluminium bronze alloy resistant to intergranular oxidation when subjected to stress in hot water or steam has a composition, in per cent by weight, in the following range: Al 5.0-8.0, Fe 1.6-2.9, Ag in a ratio of 1 part Ag : 23-to 44 parts Al, Cu the balance.
Patent GB-173127-A (GB)
Title: Improvements in and relating to washing machines
IPC: D06F37/36
Filed: 1920-10-29
Abstract: 173,127. British Thomson - Houston Co., Ltd., (General Electric Co.). Oct. 29, 1920. Washing-machines with rocking or swinging receptacles.-Relates to motor-driven machines in which the tub has a corrugated bottom and is given swinging motions about two different axes, and consists in an improved suspension for the tub, and in the provision of a dog clutch and a friction clutch. The tub 10 is trunnioned at either side on links 18 pivoted on a shaft 17 secured to the side frames, and is under the restoring influence of springs 22 connected to offsets 21 on the tub and to the shaft 17. A link 23 from the side frame restricts the movement of the tub so that the rotation of a crank 25 through a connecting-rod 27 connected to the tub causes the latter to swing about the shaft 17 and also about its trunnions 20. Operating. mechanism comprises an electromotor 24 which drives a worm 30 and a worm-wheel 31, frictionally held to a sleeve 37 by an adjustable spring 36 so as to constitute an overload slip-clutch between the motor and machine. On the sleeve 37 is a pinion 39 meshing with a gear 40 keyed to a quill-shaft 26 on which is mounted a crank 25 with boss 41. Teeth 45 on the boss co-operate with teeth 44 on a cap 43, slidably keyed to the shaft 26 on actuation of a rod 47 connected to a sleeve 50 moved from a hand-lever through ordinary fork mechanism. A wringer can be driven by bevel-gearing from the shaft 60.
Patent GB-742443-A (GB)
Title: An improved cutter head for a mineral-mining or earth-boring machine
IPC: E21C25/58
Filed: 1953-11-05
Abstract: 742,443. Mineral-mining apparatus. JOYSULLIVAN, Ltd., and SMITH, W. M. July 16, 1954 [Nov. 5, 1953], No. 30670/53. Class 68(1) In a mineral-boring cutter head of the type having a cutter-armed, open-ended cylinder a, a conveyer scroll j, and a breaker k mounted on a rotatable and advanceable shaft e, the breaker k is encircled by and secured to a correspondingly tapered helical rib l, the mineral-engaging face of which is rounded in transverse cross-section. A cutter or cutters m project from the leading end of the breaker. The other portions of the cutter head may be as in Specification 742,204, which is referred to.
Patent GB-308359-A (GB)
Abstract: 308,359. I. G. Farbenindustrie Akt.- Ges. March 22, 1928, [Convention date]. Quinizarin-6-sulphonic acid and its homologues are made by heating the boric acid ester of quinizarin or of a homologue thereof with oleum with or without the addition of mercury or a mercury compound. In examples, (1) the boric acid ester of quinizarin (prepared from quinizarin, boric acid and oleum) is heated with oleum in presence of mercuric sulphate to give quinizarin- 6-sulphonic acid, (2) 2-methlquinizarin-6-sulphonic acid is similarly prepared from 2-methyl quinizarin boric acid ester. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the manufacture of 6-sulphonic acids of derivatives of quinizarin in general. This subject-matter does not appear in the Specification as accepted.
Patent GB-1179777-A (GB)
Title: Electrochemical Cells Comprising Air-Depolarised Electrodes
IPC: H01M12/08
Filed: 1967-07-05
Abstract: 1,179,777. Air-depolarized cell. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. 5 July, 1967 [5 July, 1966], No. 31058/67. Heading H1B. An air-depolarized cell in which the negative electrode may be regenerated comprises a case containing: (a) an electrolyte, (b) a negative electrode, (c) a hydrophobic positive electrode, depolarized by air, not more than 0À5 mm. from the negative electrode and protruding above the electrolyte surface and (e) another positive electrode. Electrode (c) is used during discharge of the cell and electrode (d) is used during regeneration of the negative electrode. The case may have a hermetically sealed lid fitted with an air inlet, a gas escape valve and terminals joined to the three electrodes the air being supplied by a micropump driven by power from the cell. The negative electrode may beless than 1mm. thick and may be a sintered Ni support containing cadmium hydroxide or powerediron or cadmium. Thepowdered iron may be mixed with microscopic crystals of copper of acicular, deutritic, or arborescent shape and the powdered cadmium may be mixed with Ni or Fe powder and compressed. The active material may be retained in a pocket of perforated steel sheet. The gas electrode may be a metal gauze covered with particles of silver plated carbon or a mixture of particles of carbon, silver and or nickel bound with polystyrene. The regeneration electrode may be a perforated nickel plated steel sheet. The electrodes may be separated by nylon felts 0À15-0À3 mm. thick. A multicell battery may comprise intercell partitions of plastics material, each cell having a gas electrode on one side and a regeneration electrode on the other, each cell being completed by a negative electrode between the two positive ones. The cells may be joined in parallel or in series the connections being arranged to facilitate switching from a discharging circuit to a regeneration circuit. The cells may be permanently wired as shown by the continuous and broken lines in Fig. 6, to a switch 13 in which the connectors are rotatable through 90 degrees from the discharging position shown to a regeneration position. Alternatively the intercell connectors may be joined by insulating material into a single bar movable between discharging and regeneration positions (Fig. 7).
Patent GB-735967-A (GB)
Title: Improvements in magnetic induced roll ore separator
IPC: B03C1/14
Filed: 1953-11-10
Abstract: 735,967. Magnetic separators. CARPENTER, J. H. Nov. 10, 1953, No. 31092/53. Class 117. An induced roll magnetic ore separator comprises a horizontal cylin drical roll 4 arranged in one corner of a rectangular inducting - magnet - assem bly 5 . . . 8 having front and back pole-pieces 8, 5 inclined at about 45 degrees to the horizontal Crushed ore is fed through apertures 24 in the upper magnet limb 6, to a feed box 23 having a slot at the lower edge which is partially closable by a flowregulating plate 26 adjustable by a rack and pinion 28. As shown, in a three unit separator, the discharge from the first unit is divided by a splitter bar 32; the more magnetic part is fed into the second stage and the tailings are conducted down a pipe 53 to the third unit. Constructional details.-(i) The separating gap is shaped to increase with the direction of motion, and front pole-piece 8 is adjustable ; (ii) a felt wiper blade 63 may bear on the roller below each back air-gap ; (iii) the roll may have a spiral groove in its surface, e.g. 1/16 inch wide and 1/32 inch deep with copper soldered therein, (Fig. 4, not shown); (iv) dimensions and operating data are given, e.g. roll 2<SP>7</SP>/ 16  inch diameter and 18 inch long; flux density at pole face up to 200,000 lines per square inch; roll speed 30 r.p.m. for feebly magnetic material up to 400 r.p.m. for strongly magnetic material.
Patent GB-1069619-A (GB)
Title: Improvements to systems for protection against errors in transmission
IPC: H03M13/51
Filed: 1965-07-22
Abstract: 1,069,619. Electric selective signalling SOCIETE D'APPLICATIONS GENERALES D'ELECTRICITE ET DE MECANIQUE. July 22, 1965 [July 23, 1964], No. 31259/65. Heading G4H. [Also in Division H4] Data is transmitted in a code in which each character is represented by transitions in p out of n possible transition positions. At the transmitter, Fig. 3 (not shown), 5-bit parallel data from a tape is converted by a diode matrix to a marking on one of 32 leads which feed a further diode matrix which generates the p out of n code in parallel form, which is serialized prior to transmission. At the receiver, Fig. 4 (not shown), the reverse process takes place.