baber/WOPTO huggingface dataset:
Patent GB-1435922-A (GB)
Title: Reading optical recordings
IPC: H04N5/85
Filed: 1973-05-08
Abstract: 1435922 Detecting record deviations PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 May 1973 [11 May 1972 19 April 1973] 21902/73 Heading G1A [Also in Division G5] Optical apparatus for reading a reflective record carrier includes means for detecting shifts in the plane of the carrier by using at least one auxiliary beam reflected from the carrier to at least two radiation detectors which provide a difference signal indicative of such shifts. In the embodiment shown, the two detectors 68, 69 define a slit 67 illuminated by an off-axis beam 66 derived from a main laser read-out beam 61 by a splitter 63. The image of the slit after reflection from the carrier 1 in its desired plane d falls on the slit itself, but otherwise illuminates one of the detectors. To maximize the difference signal at small deviations, the detectors, which are preferably photodiodes, have light-insensitive margins adjacent the slit 67 which are as narrow as possible, or may have subsidiary light-sensitive areas thereat, Fig. 12 (not shown). In a second embodiment, Fig. 3 (not shown), the image of a slit (30) is normally focused at the edge of a radiation-absorbing screen (34) so that the detectors (35', 35") behind the screen receive equal illumination. The difference signal may control focusing of a lens (33). The position of a half-silvered screen (32) is adjusted in response to differences in the output of additional detectors (37', 37") outside the screen (34) in order to maintain alignment. In a third embodiment, Fig. 4 (not shown), detectors (D n ) are arranged in an inclined row and separated by illuminated slits (S n ). One only of the slits is imaged sharply on itself after reflection at the carrier 1, so that adjacent detectors receive no radiation therefrom; the detector outputs thus indicate the position of the carrier. In a fourth embodiment, Fig. 5 (not shown), auxiliary beam (51b), which may be the first-order reflection from a diffraction grating (54), strikes the carrier at an acute angle and is reflected to the detectors (56', 56"). The other first-order beam (51c) is reflected to additional detectors (57', 57") providing a difference signal to control the position of a half-silvered mirror (52), in order to maintain alignment.
Patent GB-224328-A (GB)
Title: Improvements in or relating to wind-screens for motor vehicles
IPC: B60J1/14
Filed: 1923-08-30
Abstract: 224,328. Annabel, C. C., and Letts, E. M. Aug. 30, 1923. Wind - screens. - The auxiliary or side screens 12 of motor vehicles are supported from the main screen standards 10 upon swinging arms 20 by means of interfitting clamping-devices pivoted together at one end on the swinging arm and adapted simultaneously to clamp the standard 10 and the swinging arm 20. Each clamp is formed of one part 13 having at one end a claw 15 engaging the standard 10 and at the other end a pair of eyes 14, and a second part 16 having at one end a concave surface 18 abutting against the convex surface of the standard 10 and at the other end an eye 17, the eyes 14, 17 together forming a bearing to receive a pivot pin 21 on the arm 20. When a bolt 19 connecting the two parts 13, 16 is tightened the standard 10 is gripped and simultaneously, owing to the tendency of the surface 18 to slide laterally on the standard 13, a slight relative displacement occurs between the eyes 14, 17, thus causing the pivot pin 21 to be securely gripped.
Patent GB-768715-A (GB)
Title: Improvements in or relating to the production of phenols
Inventor: FENOGLIO MAURICE
IPC: C07C45/53
Filed: 1954-07-27
Abstract: Phenols and carbonyl compounds are obtained by decomposing an alkyl aromatic hydroperoxide by treatment with a mineral acid and washing the fission product with an aqueous solution of a normally solid carboxylic acid which is weaker than oxalic acid.  Normally, solid carboxylic acids are defined as acids which are solid at normal room temperature, i.e. 65 DEG  F.  Specified acids are citric, tartaric, lactic, salicyclic and phthalic acids.  The acids are preferably employed in low concentration such as 1 to 2 per cent. The hydroperoxide starting material is prepared by incomplete oxidation of the corresponding hydrocarbon and any hydrocarbon remaining after the oxidation is preferably removed before the hydroperoxide is treated with the mineral acid.  The solution of carboxylic acid extracts the mineral acid from the fission mixture, giving a better phase separation than a water washing, and also, in the fission of cumene hydroperoxide, accelerates the dehydration of any dimethylphenylcarbinol present to a -methylstyrene without promoting polymerization of a -methylstyrene or condensation of a -methylstyrene with phenol. Specified hydrocarbons, the hydroperoxides of which may be used in the process, are cumene, p-cymene, diisopropylbenzenes and ethylbenzene.  In an example, cumene hydroperoxide is decomposed with sulphuric acid and the fission product, containing 2.5 per cent dimethylphenylcarbinol, washed with a 2 per cent citric acid solution to remove the sulphuric acid, the washed product being distilled to remove acetone.  Less than 20 per cent of the dimethylphenyl carbinol is converted into polymethylstyrene and no cumylphenol is formed.  A similar washing of the fission product with water does not remove all the sulphuric acid, the phase separation is more difficult, and after distillation 60 per cent of the dimethylphenylcarbinol has been converted into a -methylstyrene, 39 per cent into polymer and 1 per cent into cumylphenol.
Patent GB-363698-A (GB)
Title: Process for making cold-flowing material for bituminous road surfacing, which hardens after being applied, and process of making road surfaces by means of that material
IPC: C09K3/22
Filed: 1930-07-21
Abstract: A bituminous binding material, for use in road surfacing, which is fluid at ordinary and low temperatures, consists of a solution of tar, pitch, asphalt, or mixtures thereof, in chlorinated hydrocarbons together with other hydrocarbons.  The dissolving of the bituminous substance may be effected under heat and pressure. In an example, 632 parts of tar and 223 parts of pitch are heated in an autoclave to about 75 DEG  C. and are then agitated with a mixture of hydrocarbons and chlorinated hydrocarbons (e.g. 75 parts of benzene and 70 parts of trichlorethylene) while the temperature is gradually lowered.  The binding material may be applied in a thin layer to existing road surfaces by spraying &c. or may be incorporated with gravel &c.  The Specification as open to inspection under Sect. 91 (3) (a) comprises a cold flowing road-surfacing material made from bituminous material, e.g. asphalt or pitch, and rubber mixed together and liquefied by light oils preferably chlorinated.  The pitch &c. and rubber are combined to a homogeneous pulp in an autoclave with agitator and backflow condenser before adding the oils under intermittent alternating superpressure.  This subject-matter does not appear in the Specification as accepted.
Patent GB-317625-A (GB)
Title: Improvements in manure distributors
IPC: A01C15/08
Filed: 1928-07-30
Abstract: 317,625. Simpson, W. P. July 30, 1928. Manure distributers.-A wheeled distributing machine comprises a hopper having a transverse bottom discharge opening, a roller extending along the opening and forming the bottom of the hopper, means for driving the roller from the travelling wheels, and a gate bar extending between the roller surface and the edge of the discharge opening and adapted to be rocked on trunnions, to regulate the discharge, the distributing roller and discharge gate bfing simultaneously controlled. The roller 16 forms a sleeve fixed on the axle 12 which is driven from the main wheels 13 by ratchets 17 and spring pawls 19. The ratchet wheels 17 are attached to the wheels 13 and the pawls 19 are carried by discs 18 fastened to the axle and are adapted to be locked in inoperative positions for transport purposes. The gate bar 21 is mounted on trunnion pins carried by adjustable levers 31 so that one end may be adjusted relatively to the other to vary the discharge across the machine. Normally it is held in position to prevent discharge by a spring 28 acting on a rod 24 pivoted on a projecting arm 23. It may be rocked by means of a lever 26 connected to the rod 24 and adapted to be locked in position by passing a link 30 over an adjustably mounted bar 29. Closing the gate bar 21 automatically puts the driving-pawls 19 out of operation through the action of bell-crank levers 36 jointed to arms 38 on the gate bar 21, the ends of the levers 36 being moved into position to engage tails 20 on the pawls 19. Within a housing in the hopper is a crushing plate 40 reciprocated up and down by cranks on short shafts 44 driven by chain gearing from the discs 18. A recording device may be actuated by one of the shafts 44 to record the acreage manured. The hopper is provided with hinged covers and may be divided into two or more sections.
Patent GB-253757-A (GB)
Title: Improvements in brackets
IPC: A47F7/17
Filed: 1925-09-04
Abstract: 253,757. Mathieson, W. A. Sept. 4, 1925. Brackets and racks for rolls of cloth and the like comprise pairs of brackets of various sizes with keyhole slots fitting over heads of screws 13 on uprights 5. Each bracket comprises a vertical part 8 with keyhole slots, a horizon. tal part 6 and an inclined part 2 with its top 3 beaded. Reference has been directed by the Comptroller to Specification 7078/91.
Patent GB-232159-A (GB)
Title: Improvements in and relating to thermionic tubes
IPC: H01J21/02
Filed: 1924-09-19
Abstract: 232,159. Huth Ges., Dr. E. F. April 11, 1924, [Convention date]. Vacuum tubes.-In a thermionic valve in which the control electrode is not arranged between the filament and anode, the surface of the control electrode is reduced at the part to which electrons pass from the filament and the total surface of the electrode is made larger than that of the anode. The control electrode may be in the form of a grid or of a plate with one or more slits extending wholly or partly through it. As shown, the filament 1 is mounted in a slit between two parts 3<a>, 3<b> of the control electrode, which are connected together electrically, and have a combined surface greater than that of the anode 2; the filament may be mounted slightly nearer to the anode than as shown. Curves are given to show the relation between the distance of the filament from the anode and (1) the " grid permeability," and (2) the ratio of the steepness of the characteristic to the " grid permeability." With an anode voltage of 40 to 50, a positive potential of 2 to 3 volts must be applied to the control electrode before current passes to it.
Patent GB-787800-A (GB)
Title: A novel trisiloxane
IPC: C09K3/00
Filed: 1956-07-18
Abstract: The invention comprises the compound 1,1,5,5 - tetraphenyl - 1,3,3,5 - tetramethyltrisiloxane, useful as a vacuum diffusion pump fluid. It is best prepared by reacting diphenylmethylsilanol with dimethyldichlorosilane at a temperature below 100 DEG  C. in the presence of a hydrogen halide acceptor such as pyridine in amount at least sufficient to react with all the hydrogen chloride produced. Less satisfactory methods of preparing the compound include: (1) cohydrolysis of the corresponding chlorosilanes; (2) catalytic copolymerization of tetraphenyldimethyldisiloxane and dimethylsiloxane; and (3) reaction of the sodium salt of diphenylmethylsilanol with dimethyldichlorosilane.  Specifications 612,595 and 684,440 are referred to.
Patent GB-328873-A (GB)
Title: Straightening and polishing machine for round rod material with automatic circulating rings effecting feed of the material
IPC: B21D3/08
Filed: 1929-07-22
Abstract: 328,873. Boecker, F. July 22, 1929. No Patent granted (Sealing fee not paid). Skew-rolling.-Round bars 14 are straightened and polished by passing them through a series of inclined profiled driven rings 17 between which are non-driven rings 18 which can be adjusted eccentrically with relation to the pass. The rings may be driven e.g. from an electric motor 25 or other geared arrangement. In a modification, Fig. 7, the rings 40 are arranged in vertical planes and a bar is fed down through them, the weight of the bar assisting the feed.
Patent GB-1038720-A (GB)
Title: Adjustable clamp for use in the erection of shuttering in building construction
Inventor: CHAMPION STEWARD
IPC: E04G13/04
Filed: 1964-06-01
Abstract: 1,038,720. Shuttering for casting beams. SCAFFOLDING (GREAT BRITAIN) Ltd. May 11, 1965 [June 1, 1964], No. 22534/64. Heading E1S. In a clamp for shuttering for casting concrete comprising a pair of right-angular units slidable on a bar, each unit is made from flat strip and has two spaced sockets for the bar. The upright 3<SP>1</SP> of the unit is a flat strip formed into U- shape to which are welded a horizontal strip 4 and a bracing strip 5, strips 4 and 5 being welded together and to one socket 8 the other socket being formed between the strip 4 and the base 3<SP>2</SP> of the U-shaped strip. A screw 11 secures the unit on the bar.
Patent GB-1166653-A (GB)
Title: Rolling Mill Apparatus
Inventor: MALTBY JACK
IPC: B21B31/02
Filed: 1966-05-20
Abstract: 1,166,653. Rolling. DAVY & UNITED ENG. CO. Ltd. 22 May, 1967 [20 May, 1966], No. 22543/66. Heading B3M. The T-shaped work roll chock 2 of a 4-high rolling mill can be held by a brake 1 against rotation relative to the associated roll 3, to facilitate removal of the roll assembly from the mill. The brake, which is attached to an adjusting nut on the roll neck, is applied manually by a lever 24, and is released automatically upon rotation of the roll 3 when replaced in the mill. The brake includes a vertically movable slide 13 which carries a brake lining 14. The lining is held out of engagement with a machined band secured to the roll neck, against the bias of two springs, 12 by a cam 26 connected to the lever 24. Nuts 16, carried on bolts 17 attached to the slide 19, abut the brake housing 11 only when the lining 14 is so worn that contact between the slide itself and the band is threatened. The lever 24 is automatically moved from its brake-applied position (shown dotted) by means of a hook 30 carried on the nut and rotated with the roll.
Patent GB-1395741-A (GB)
Title: Pyroelectric target for camera tubes
IPC: G01J5/34
Filed: 1972-05-12
Abstract: 1395741 Image pick-up tubes THOMSONCSF 12 May 1972 [14 May 1971] 22549/72 Heading H1D A pyroelectric target for thermal carrier tubes comprises a substrate 4 of low thermal conductivity, a transparent conducting layer 3, e.g. Au, and a mosaic of elements 1 of pyroelectric material. To increase radiation absorption an opaque layer 2 is added. Square elements of monocrystalline triglycine sulphate are attached to the layer 2 by an adhesive film 5. Read-out is by a scanning electron beam. The target is formed by depositing a mosaic of Au elements on a continuous layer of pyroelectric material and etching the material between the Au elements.
Patent GB-660012-A (GB)
Title: Improvements in photographic emulsions
IPC: G03C7/392
Filed: 1948-08-26
Abstract: 660,012. Colour photography. KODAK, Ltd. Aug. 26, 1948 [Aug. 29, 1947], No. 22554/48. Class 98 (ii). A photographic silver halide emulsion suitable for use in colour photographic material contains acoupler for producing a cyan image and a red-sensitizing dye of one of the formulae: wherein D and D 1  each represent a divalent aliphatic hydrocarbon radical containing from 1 to 4 carbon atoms,. Y and Y 1  each represent S or Se, -R and R 4  each represent H or an alkyl group containing from 1 to 4 carbon atoms, Z and Z 1  each represent the atoms necessary to complete a benz- or naphtha-thiazole or a benz- or naphtha-selenazole nucleus, R 1  and R 3  each represent methyl or ethyl, R 2  represents a monocyclic aryl group of the benzene series, and X is an anion. The coupler may be incorporated by the method of Specification 541,589, or the emulsion may contain a waterinsoluble water-permeable material as disclosed in Specification 524,154. Numerous high - boiling substantially water - insoluble crystalloidal materials are specified. Numerous couplers are specified, including 2-chloro-5- (N - n - valeryl : N - p - isopropylbenzylamino)- 1 - naphthol, 2 : 4 - dichloro - 5 - (N - p - nitrobenzoyl : N - # - hydroxyethyl) - amino - 1- naphthol, 2 : 2<SP>1</SP> - dihydroxy - 5 : 5<SP>1</SP> - dibromostilbene, 5 - p - phenoxybenzenesulphonamido - 1 - naphthol, 8 - hydroxy - 1 - α- naphthoyl - 1 : 2 : 3 : 4 - tetrahydroquinoline, 5 - cyclohexylsulphonamido - 1 - naphthol, 2- anilidoacetamido - 4 - chloro - 5 - methylphenol, 2 - p - nitrobenzamido - 4 - chloro - 5 - methylphenyl, 3 - [α - (pl - tert. - amylphenoxy) - nbutyramido] - 5 - chlorophenol, and 5 - (quinoline - 5 - sulphonamido) - 1 - naphthol. Numerous red-sensitizing dyes are specified, the dyes 3 - 31-diethylthiacarbocyanine iodide, 3 : 31 : 9- triethylthiacarbocyanine iodide, 3 : 31-diethyl- 5 : 51 dichlorothiacarbocyanine iodide, and 3 : 31 : 9 - triethyl - 5 : 51 - dichlorothiacarbocyanine iodide not being satisfactory in presence of the colour couplers. Numerous colour developing agents are specified, including N- carbamidomethyl : N - methyl - p - phenylenediamine, N<SP>4</SP> carbamidomethyl : N<SP>4</SP> - tetrahydrofurfuryl - 2 - methyl - p - phenylene diamine, N<SP>4</SP> ethyl : N<SP>4</SP> - carboxymethyl - 2- methyl - p - phenylenediamine, 3 - acetylamino - 4 - aminodimethylaniline, N - ethyl- N - # - methanesulphonamidoethyl - 3 - methyl- 4-aminoaniline, and the sodium salt of N- methyl : N - # - sulphoethyl - p - phenylenediamine. The emulsion may be of the ordinary surface-image type or of the internal-image type as described in Specification 581,772. Specifications 15055/12, [Class 98 (ii)], 513,170, and 592,267 also are referred to.
Patent GB-280836-A (GB)
Title: Improvements in or relating to radio receiving sets of the supersonic or super heterodyne type
IPC: H03H5/02
Filed: 1926-08-20
Abstract: 280,836. Igranic Electric Co., Ltd., and Mower, G. A. Aug. 20, 1926. Receiving-sets, construction of ; composite units. -A multiple component suitable for supersonic receiving-circuits comprises an intermediate-frequency tuning-coil structurally combined with coupling and neutralizing condensers and a grid leak. The tuning-coil 38 is wound around a boss 35 formed on a baseplate. The latter is provided with side flanges to which the condensers 39 are bolted, and with upper flanges 36 which serve to connect the unit to the structure of the receiving set. A grid-leak 40 is detachably secured to the lower portion of the unit, as shown. A coverplate 42 for the coil 38 is secured to the baseplate by a bolt 43, and packing 44 holds the coil firmly in position. The ends 47 of the coil winding, together with a tapping lead, are connected to conducting strips 46 riveted between ribs 45 formed on the upper part of the base plate. Specification 279,580 is referred to. According to the Provisional Specification, the units are separately screened or shrouded when mounted on a receiving-set.
Patent GB-1039292-A (GB)
Title: Capacitor
Inventor: HELLICAR NORMAN JOSEPH
IPC: H01G4/22
Filed: 1962-06-14
Abstract: 1,039,292. Capacitors. STANDARD TELEPHONES & CABLES Ltd. June 7, 1963 [June 14, 1962], No. 22850/62. Heading HIM. A capacitor having a dielectric constituted by a re-oxidized surface layer of an essentially reduced ceramic body is impregnated with a silicone oil or an epoxy resin. Barium and strontium titanates with a lanthanum or other rare earth titanate mixed with a binder may be pressed into a disc or an axially-bored cylinder, fired to form a ceramic body, reduced, coated with silver electrodes, and re-oxidized to form the basic capacitor. This may be placed in a mould with an epoxy resin and heated under a vacuum for 15 minutes. The moulds are topped up with further resin and heated again for 30 minutes under vacuum, and the mould is then left in atmospheric air at 125‹ C. for 18 hours to cure the resin. The impregnation step reduces leakage currents and may employ silicone oil instead of epoxy resin. The capacitor may be of the flat plate type (Fig. 1, not shown) or of the hollow cylinder type (Fig. 3, not shown); alter. natively (Fig. 4, not shown), part of the reoxidized layer of a flat ceramic plate may be ground away and one electrode applied directly to the central reduced conducting body. The ceramic component materials may include tantalates, niobates or oxides of rare earth, alkaline earth, or alkali metals.
Patent GB-897376-A (GB)
Title: Improvements in or relating to pipe or tube fittings
Inventor: O'NEILLY WILLIAM JACK
IPC: F16L41/12
Filed: 1960-06-30
Abstract: 897,376. Pipe joints. UNIVERSAL FLAYMASTER EQUIPMENT CO. Ltd. June 30, 1960, No. 22909/60. Class 99(1). [Also in Group XXV]. A clamping member for connecting a branch pipe 7 to a main pipe 5, comprises two interlocking parts 1, 2 one of which has inturned longitudinal edges 3 to interlock with outturned longitudinal edges 4 on the other part so that the clamping member may be assembled by sideways movement of the two parts relatively to one another to cause the edges to interlock, a socket 10 for connection to the branch pipe provided on one of the parts of the clamping member and separate tightening means 8, 9 provided on one of the parts of the clamping member by means of which the assembled member may be secured in position around the pipe. A flexible disc may be inserted between the clamping member and the pipe to seal the socket opening when a particular take-off hole is no longer required.
Patent GB-293595-A (GB)
Title: Improvements in or relating to display devices
IPC: G09F13/04
Filed: 1927-08-31
Abstract: 293,595. Akers, J. Aug. 31, 1927. Signs; letters, numerals, and the like. - In signs of the trough or box type wherein the display portion is made up of one or more strip-like areas or bands and has illuminating means in the casing behind it, the display portion is made up of mosaic pattern of elements arranged in a jumbled manner. The display strip may be formed of transparent, translucent or reflecting elements of various colours. When reflecting elements are used, the light is diffused through gaps surrounding the mosaic parts or is, supplied by a shielded lamp projecting through the mosaic strip. Figs. 1 and 2 show one construction in which the mosaic band 16 is V-shaped with the angle shown projecting outwardly, but in other cases it may project inwardly. The band is secured to the front of the lamp-carrying casing 10 bv screws 13. In an alternative construction for reflecting mosaic elements, the band 16 is made smaller than the opening in the front of the casing to leave a light-transmitting gap all round it. The individual pieces of glass, celluloid or the like forming the mosaic are secured in pierced portions of the holding plate. The side walls of the casing 10 axe extended beyond the rear wall 14 to cover and protect the lamp sockets. Fig. 3 shows a, construction in which a gap 26 is left all round between the mosaic letter and its supporting plate 25, the letter being lodged on small projecting bracket arms or webs 23. A letter and plate are mounted slidably in the front of the lamp-carrying casing. Specification 247,753 is referred to.