baber/WOPTO huggingface dataset:
Patent GB-962703-A (GB)
Title: Improvements in or relating to atmospheric contaminant detectors
IPC: G01N21/35
Filed: 1962-06-22
Abstract: 962,703. Infra red gas analysers. LEESONA CORPORATION. June 22, 1962 [June 26, 1961], No. 24209/62. Heading G1A. A system for detecting contaminants in the atmosphere comprises an infra-red source 10, means such as a chopper wheel 12 for periodically interrupting the rays from the said source, detector means 34 including an electrical system for receiving the rays and translating them into electrical signals, and a filter chopper 28 comprising a filter element movably mounted relative to the path of the rays between the source and the detector means and including means for moving the element of the chopper 28 into and out of the path of the rays at a sub-harmonic frequency of the frequency at which the chopper wheel 12 interrupts the rays. In the embodiment shown infra red rays from the source 10 are chopped by the wheel 12 to become a series of pairs of ray pulses 40, 41 (Fig. #2a) which are reflected by mirrors 16, 18 and 20 and are transmitted through filters 22 and 24 to) the mirror 26 and from there through a filter 32 to the detector 34. Assuming that the chopping frequency of the wheel 12 is twice that of the filter chopper 28 two complete source chopping cycles occur when the filter of the chopper 28 is interposed in the beam of rays and two while it is removed, the movements of the chopper 28 and the wheel 12 being synchronized through a mechanical linkage 30. If the chopper 28 were to pass a beam from a constant infra-red source (Fig. 2b) the amplitude of the signal 43 from the detector 34 when the filter was out of the beam would be a function of all the response bands of the detector 34. When the filter is in the beam the amplitude of the signal 45 represents all the response bands of the detector up to the cut off wavelength of the filter. Because of this wavelength only the signal 43 includes the atmospheric contaminant band. When the bands absorbed by normal atmospheric contaminants such as carbon dioxide and water are removed by the filters 24 and 22 respectively the ratio of the signal 43-45 should be constant if none of the atmospheric contaminant under investigation is present. With the chopper wheel 12 and the filter chopper 28 operating in synchronism the output of the detector is of the form shown in Fig. 2C. This signal is fed through a pre-amplifier and amplifier to a synchronous rectifier or switch (Fig. 3 not shown) synchronized with the chopper 28 to separate the signals A and B. These respective signals are then fed by separate conductors to a switch where they may be connected to a difference amplifier for initial optical alignment of the apparatus or to a ratio amplifier connected to a meter which may be calibrated to indicate directly the concentration of atmospheric contaminant. The detector used may be a thermal detector, a thermistor, a gas filled Golay cell or a pneumatic/ capacitor detector.
Patent GB-1460904-A (GB)
Title: Data retrieval strip scanner method of producing a lamp base having an electroplated coatin
IPC: G06K17/00
Filed: 1973-05-21
Abstract: 1460904 Film indexing apparatus KODAK Ltd 16 May 1974 [21 May 1973] 24216/73 Heading G1A Apparatus for scanning longitudinally spaced indexing marks on a film comprises three photocells 1, 2, 3 spaced to view each mark in turn as the film moves in a longitudinal direction, first and second circuit means 34, 35 connected to photocells 1, 2 and 2, 3 respectively and arranged to produce an output when the outputs of the two associated photo-cells differ so that each circuit means produces a pulse train as the film moves and means to detect the phase difference between the pulse trains and direct one of the pulse trains to either the up or down input of an electronic counter.  As shown, the photo-cells are vacuum devices connected with FET's and amplifiers 31-33. The circuit means 34, 35 are differential amplifiers and the resulting outputs are fed to pulse shapers 36- 38 having pre-set trigger levels (36 and 37 trigger on positive and negative peaks respectively). The first pulse from 37 resets bi-stable 42, 43 and 45, 46 and the first pulse from either 36 or directs that and subsequent pulses via gate 41 or 44 to the count up or count down input of the counter and sets the associated bi-stable to block the other of gates 41 and 44. The photo-cell assembly may be used with different film scanners of different luminance and may comprise means, with optical indication for setting the circuit gain. In an alternative embodiment, CdS photo-cells may be used in a bridge network.
Patent GB-816676-A (GB)
Title: Improvements in battery separators
Inventor: NEUMANN FELIX
IPC: H01M50/463
Filed: 1955-08-25
Abstract: 816,676. Battery separators. EBONITE CONTAINER CO. (MANUFACTURING) Ltd. Nov. 26, 1956 [Aug. 25, 1955], No. 24447/55. Class 96. [Also in Group XXXVI] In making battery separators a web of absorbent paper, Fig. 1, is impregnated, e.g. uniformly, with a pre-condensate of a thermosetting resin, discontinuous protuberances 2 are pressed or embossed in the paper and it is then heated to cure and set the resin. The paper may then be subjected to a wetting-out treatment. The protuberances may be staggered ridges disposed in rows, as shown, or they may be dome- or diamond-shaped. They may be formed on both sides of the paper. The paper may contain between 1 and 3 per cent by weight of melamine. For example, kraft paper from a roll 3, Fig. 3, is immersed in or floated on an aqueous solution 6 of a pre-condensate of a thermosetting resin. The solution may contain about 30 per cent by volume of a pre-condensate of a phenol-formaldehyde resin and about 0.25 per cent of sodium hydroxide. The paper, thus impregnated, e.g. after being passed between rollers, not shown, to remove surplus solution and secure uniform impregnation, is passed through a heated chamber 8, then between embossing rollers 10 and 11, then through a curing oven 12 and is finally cut into separators by rotating knives 14. One embossing roller may be formed with metallic protuberances: the other may be made of relatively hard plastic material.
Patent GB-361321-A (GB)
Title: Improvements in or relating to supports or guides for sliding members in knitting machines
IPC: D04B15/10
Filed: 1930-08-15
Abstract: 361,321. Knitting-machines. GREEN, G. H. and ECONOMIC WINDINGS CO., Ltd., Bulwer Road, Leicester. Aug. 15, 1930, No. 24461. [Class 74 (ii).] Strip members 1 having corrugated surfaces are provided for guiding the needles, sinkers, jacks, &c. of a knitting - machine. Corrugations may be provided in one or both faces, and are of varying height to neutralize the normal radiation of such guiding surfaces in a circular machine. The corrugations 1b may extend transversely to an edge of the strip, such corrugations increasing in height towards the edge, or may extend lengthwise of the strip. Each corrugation 1c of this latter form is of uniform depth, but deeper corrugations are provided towards the edge of the strip. The strips may be stamped between tools 6, 7 having grooves 9 and teeth 10 which conform to the corrugations in the strip. An adjustable stop 11 is provided for positioning the strip relatively to the teeth and grooves.
Patent GB-701661-A (GB)
Title: Improvements relating to drying apparatus for pottery ware and the like
IPC: F26B25/06
Filed: 1951-10-20
Abstract: 701,661. Drying apparatus. HANCOCK, W. Nov. 17, 1952 [Oct. 20, 1951], No. 24517/51 Class 34(2) Apparatus for drying pottery ware has a stationary housing a with apertured shelves a<SP>1</SP> info which housing is moved a truck f carrying the ware on shelves f<SP>3</SP> so that the shelves f<SP>3</SP> are positioned beneath the shelves a<SP>1</SP>. An air conduit b connecting with a fan and heating element c supplies hot air to the hollow shelves a<SP>1</SP> from which it is blown downward on to the ware, the air being recirculated via' a conduit e.
Patent GB-373028-A (GB)
Title: Improvements in and relating to liver concentrates
IPC: A61K31/00
Filed: 1931-09-01
Abstract: Concentrated liver extract is prepared by allowing solid salt to stand in contact with comminuted liver, removing the solid materials and evaporating the liquid until a dry residue is obtained.
Patent GB-849425-A (GB)
Title: Improvements in temperature control device
Inventor: MCFARLANE MAYNARD DEEDES
IPC: G05D23/24
Filed: 1958-07-30
Abstract: 849,425. Automatic control systems. ROBERTSHAW-FULTON CONTROLS CO. July 30, 1958 [Oct. 14, 1957], No. 24571/58. Class 38 (4). A body is so positioned between zones maintained at different constant temperatures that it assumes a desired intermediate temperature. In Fig. 1 a container 112 for an oscillator crystal is maintained at a desired temperature by suitably positioning it between liquid-solid slurries 16, 18 of conductive materials having different fusion temperatures in containers 12, 14. To maintain the liquid/solid ratios constant in each container 12, 14, an inductance, e.g. 62, is immersed in each slurry and connected in an A.C. bridge circuit, e.g. 38, so that change in inductance due to change of current induced in slurry of changed liquid/solid ratio alters the output of the bridge circuit and thus, through a power amplifier, e.g. 44, restores the desired ratio by altering the energization of a slurry heater, e.g. 20. Arrangements are described in which (a) container 112 is mounted in a thermally conductive member adjustable by a lead-screw along thermally conductive rails interconnecting containers 12 and 14; (b) expansible bellows filled with heat-conductive fluid interconnect containers 12 and 14 with container 112, the position of which is adjustable by a lead-screw; (c) flexible heat-baffle strips interconnect containers 12 and 14 and interconnect containers 12 and 14 with container 112, the position of which is adjustable against a spring; (d) alteration of the liquid/ solid ratio is detected by expansion or contraction of the slurry operating a carbon pile regulator which is substituted for the variable inductance and also acts as an auxiliary slurry heater.
Patent GB-493579-A (GB)
Title: Improvements in or relating to a method for the production of rubber thread consisting of three or more united filaments
IPC: B29D99/00
Filed: 1937-09-09
Abstract: Three or more rubber filaments are continuously associated round a core thread to produce a unitary thread having limited stretch.  The thread may be produced by extruding latex into a coagulant, and leading the filaments and core over rollers, or they may be drawn vertically upwards.  Two filaments may be united, a core laid on them, and a third filament superposed.  The degree of stretch may be controlled by the use of a core having a definite extensibility, such as a fibre-covered rubber thread capable of 200 per cent elongation. The core may comprise a central thread soluble in certain solvents, e.g. cellulose acetate soluble in acetone, wrapped round with thread insoluble in such solvents, e.g. cotton, so that on dissolving the centre, a limited stretch is imparted to the thread.  Specifications 219,635, 290,313, [both in Class 70], and 497,617 also are referred to.
Patent GB-460878-A (GB)
Title: Improvements in or relating to boxes or containers for paste, or solid or semi-solid materials
IPC: B65D43/02
Filed: 1936-09-09
Abstract: 460,878. Boxes. LOMAX, S. C. Sept. 9, 1936, No. 24615. [Class 18] A box for dentifrice &c. has a base flange 13 and spaced ribs 17 so arranged that the lid 20, which has a roll or flange 22, rests freely upon the flange 13 when the roll 22 has been pushed over the ribs 17. Inwardly projecting burst holes 15 act upon the block of dentifrice &c. to prevent it rotating within the box 11.
Patent GB-722378-A (GB)
Title: Kitchen range
IPC: F24C13/00
Filed: 1952-10-01
Abstract: 722,378. Kitchen ranges. KINDIG, J. Oct. 1, 1952 [Oct. 10, 1951]. No. 24623/52. Class 126. [Also in Group XIII]. A kitchen range comprises a combustion chamber, an outlet flue and water heater or steam generator housed in a heating chamber separated from the rest of the range but communicating with the combustion chamber at the top through a duct, a uniformly apertured hit and miss damper extending across the bottom of the heating chamber and controlling communication between the chamber and the outlet flue, and horizontal tubes forming the water heater are evenly distributed in the chamber to be heated by the downward flow of hot gases when the damper is opened. Horizontal water tubes 38, Fig. 2, uniformly fill a heating space 6 separated from the ovens 1, 2, Fig. 1, by a partition provided with a flap damper 23 at the top so that the space 6 may be cut off from the combustion chamber. The space 6 communicates with an outlet flue 37 through a uniformly apertured hit-and-miss damper 20, 21 extending across the bottom of the space, and a hit-and-miss damper 24, 25 is interposed between the outlet flue and the ovens 1, 2. The water tubes 38 are connected to vertical headers 12, 13 leading to top and bottom headers 33, 34 which may be divided to form. two separate water-heaters. A secondary air passage 29, Fig. 4, leads from the ashpit 30 to a hit-and-miss damper at the back of the fireplace, and further secondary air is supplied through slots in the inner stoking door 43. Sliding plates 27 are provided to cut off the grate 26 from the ashpit 30. The secondary air supply openings are dimensioned so as to cause flames to sweep all the tubes of the water heater. A window (not shown) is provided in the side wall of the range so that the optimum settings of the dampers may be determined.
Patent GB-172090-A (GB)
Title: Improvements in or relating to the construction of walls and other building structures and to tiles for use therein
IPC: E04B2/86
Filed: 1920-08-25
Abstract: 172,090. Bendall, R. L. Aug. 25, 1920. Facing-tiles a are provided with ribs or lugs b slotted to receive metal cross ties f. The horizontal edges of the tiles may abut, overlap, or be rabbeted, and the adjacent tiles may be tied or dowelled together laterally. Concrete is cast between the tiles and rear slabs e.
Patent GB-874236-A (GB)
Title: Bacteriostatic esters of substituted hydroxybenzoic acids
Inventor: SPIVEY ARTHUR MARSHALL
IPC: C07C69/88
Filed: 1958-07-31
Abstract: Bacteriostatic esters of formula: <FORM:0874236/IV (a)/1> wherein R is a branched chain alkyl group having eight or more carbon atoms and R1 and R2 are hydrogen (but not both hydrogen), a halogen atom or an alkyl group, and their salts (see Group IV(b)) may be incorporated in thermoplastic resins such as polystyrene, polyvinyl chloride and polyethylene and thermosetting resins, for example, phenol- or melamineformaldehyde resins. Amounts of 0,05%-5,0% by weight may be used, for instance by adding the ester to a granular resin before moulding.ALSO:The invention comprises aliphatic esters of p-hydroxybenzoic acids of formula:-  <FORM:0874236/IV (b)/1> wherein R is a branched chain alkyl group having eight or more carbon atoms and R1 and R2 are hydrogen (but not both hydrogen), a halogen atom or an alkyl group, and their salts. They are used as bacteriostats in various compositions (see Groups III, IV(a) and VI).  The esters are prepared by halogenation of the corresponding unsubstituted ester or by esterification of a suitable acid with a branched-chain alkanol. A number of suitable acids and esterifying radicals are specified. Sodium and potassium salts of the esters are mentioned.  Specified esters are 2-methylheptyl 31-chloro-p-hydroxybenzoate, 2 : 2 - dimethylhexyl 31:51-dichloro-p-hydroxybenzoate, 2:5:5-trimethylhexyl-21-methyl-p-hydroxybenzoate, 2-methyloctyl 21:61-dimethyl-p-hydroxybenzoate and 2:2:4:4-tetramethylbutyl 21 - methyl - 51 - bromo-p-hydroxybenzoate.  In examples, 2-ethylhexyl 31-chloro-, -bromo- and -iodo-p-hydroxybenzoates and 3:5:5-trimethylhexyl 31-chloro-p-hydroxybenzoate are prepared by halogenation of the unsubstituted esters.ALSO:Bacteriostatic esters of formula:-<FORM:0874236/III/1> wherein R is a branched chain alkyl group having eight or more carbon atoms and R1 and R2 are hydrogen (but not both hydrogen), a halogen atom or an alkyl group, and their salts (see Group IV(b)) may be incorporated in soaps, such as common and potassium soaps, and waxes, for example beeswax, carnauba wax and paraffin wax.  They may be added to the liquid soap or wax in amounts of about 0.05 to 5.0%.ALSO:Bacteriostatic compositions comprise compounds of formula <FORM:0874236/VI/1> wherein R is a branched-chain alkyl group having eight or more carbon atoms and R1 and R2 are hydrogen (but not both hydrogen), a halogen atom or an alkyl group, and their salts (see Group IV(b)).  The compositions are liquid (e.g. solutions, dispersions and emulsions) and solid (e.g. using talc as diluent). In an example the bacteriostatic action of aqueous solutions of 2-ethylhexyl 31-chloro-, -bromo- and -iodo-p-hydroxybenzoates and 3 : 5 : 5-trimethylhexyl 31-chloro-p-hydroxybenzoate is described.
Patent GB-265260-A (GB)
Title: Improvements in biscuit and the like baking machinery
IPC: A21B5/02
Filed: 1925-10-05
Abstract: 265,260. Rolinson, J. G. Oct. 5, 1925. Wafer biscuits, making. - In a machine for making cone biscuits, of the type in which a pair of half mould sections are hinged together and lock about conical plugs and in which the conical plugs are moved, for discharge of the cone biscuits, normally to their axes, an injection plate, arranged around the bases of the plugs, is moved forward automatically to strip the cone biscuits from the plugs. As shown in Fig. 1, the socket mould comprises two hinged half mould sections 1, 2 having patterning 3 and the plug moulds 10 are secured by screwed extensions 11 and nuts 12 in a flange 13 of a bracket 16 rotatable on the shaft 7 by a lever 8 having an end roller 9 which engages with a cam rail whereby the plugs, after the half mould sections are opened, swing upwardly away from the lower section 1. The plugs 10 and the section 2 may be operated by hand. The plugs 10 have fluted or ribbed beat receptive extensions 15. The stripping plate 14 has projecting pins 21 which engage fixed abutments 22 on the shaft 7 whereby the plate 14 is moved forwardly when the plugs are swung up. The section 1, 2 may be opened by cam rails and locked by aT-headed bolt and a star-wheel.
Patent GB-1112107-A (GB)
Title: Improvements in or relating to de-scaling and dust removing apparatus
Inventor: MATTHEWS RONALD HARRY
IPC: F28G9/00
Filed: 1965-06-11
Abstract: 1,112,107. Cleaning pipes. H. WILLIAMS & SON Ltd. 13 June, 1966 [11 June, 1965], No. 24755/65. Heading F2N. An apparatus for cleaning surfaces especially pipes comprises a rotatable tool 12 mounted on a flexible shaft 10 and driven by a motor 1. The shaft 10 is provided with a flexible casing 9 which co-operates with a sealing rubber nozzle 20 of a rigid sleeve 16 forming part of a vacuum apparatus. The sleeve 16 is connected by a suction hose 18 to an industrial type vacuum cleaner 19. A cup-like member 22 of resilient material is mounted on the forward end of the sleeve 16 and is adapted to contact a face of a boiler wall 23 which surrounds a boiler tube. The boiler tube is de-scaled by the tool 12 and the scale and dust is drawn away by the vacuum cleaner. Several types of tool are disclosed including brushes (Figs. 2, 3 and 4, not shown). The motor may be mounted on a trolley 2 which is provided with means 4, 5 for its suspension.
Patent GB-1160482-A (GB)
Title: Polymer Composition Resistant to Electrostatic Charge.
IPC: C08K5/17
Filed: 1967-05-30
Abstract: 1,160,482. Antistatic polymer compositions. FARBWERKE HOECHST A.G. 30 May, 1967 [28 May, 1966], No. 24887/67. Headings C3P and C3R. Compositions comprise a high molecular weight polymer and, as antistatic agent, 0À05 to 4À0 weight per cent of the reaction product of an amine of formula R 1 R 2 NH where R 1  is a C 4-22  aliphatic hydrocarbon radical and R 2  is hydrogen or a C 1-12  aliphatic radical, and an aliphatic dioxirane of formula where n is 2 to 6, m is 0 to 4 and p is 2 to 4. Specified polymers are polymers and copolymers of ethylene, propylene, butene-1, 4-methylpentene-1, styrene, acrylonitrile, methacrylonitrile, butadiene and vinyl acetate; glycol terephthalates and alkyd and unsaturated polyester resins. The antistatic agents may be derived from butyl-, octyl-, decyl-, lauryl-, stearyl-, eicosyl-, dibutyl-, N-methyloctyl-, N- methyldodecyl-, N-ethyldodecyl-, N-methylstearyl-, N-ethylstearyl-, tallow and coconut oil amines; and diglycidyl ethers of ethylene glycol, 1,4-butanediol or 1,6-hexanediol; or 1,2,3,4 - diepoxybutane, 1,2,5,6 - diepoxyhexane, 1,2,7,8 - diepoxyoctane or the diglycidyl ethers of diethylene glycol or triethylene glycol. Examples describe compositions comprising polyethylene, polypropylene, polystyrene and polyethylene terephthalate and antistatic agents derived from diglycidyl ether of butane diol and butylamine or N-methylstearylamine; diglycidyl ether of hexane diol and butylamine; diglycidyl ether of diethylene glycol and dodecylamine or stearylamine; diglycidyl ether of triethylene glycol and stearylamine; 1,2,5,6 - diepoxyhexane and stearylamine or ethylstearylamine; and 1,2,7,8- diepoxyoctane and stearylamine or octylamine.
Patent GB-487146-A (GB)
Title: Tap sole blanks and method of cutting same
IPC: C14B5/00
Filed: 1936-09-12
Abstract: 487,146. Cutting-out tap sole blanks. SHAW, C. G. Sept. 12, 1936, No. 24919. [Class 17 (ii)] [Also in Group VIII] A tap sole blank N is of such a shape that tap soles K, L of various shapes can be cut therefrom. The blanks may be hexagonal, Fig. 1, or pentagonal, Fig. 12, and some of their corners may be rounded. The toe and heel lines 5, 6 may be curved. In cutting-out the blanks from a sheet of leather, there is little or no waste. A four-sided blank R, Fig. 7, is stated to be known.
Patent GB-821555-A (GB)
Title: Improvements in or relating to metal containers and method of making the same
Inventor: LEER OSCAR JACQUES VAN
IPC: B65D21/02
Filed: 1956-08-15
Abstract: 821,555. Making hollow-ware. VALEVEFA N. V. Aug. 14, 1957 [Aug. 15, 1956], No. 24945/56. Class 83 (2). [Also in Group XVII] A metal container has an upper end of reduced diameter for telescoping into the lower end of another container stacked above it, the upper end of the container being slightly tapered. The drum shown has a cover 12 and bottom 13, each being united to the body 11 by seaming, so forming chimes 14 and 15 respectively. The drum is of sheet steel, rolled and welded, the shell so formed being placed in an expansible die, one end of the segments forming the die being tapered, and the die then expanded. Thereafter reinforcing corrugations 17 and hoops 18 may be applied; or they may be applied during expansion of the shell. The ratio between the difference in diameters of the container at either end of the tapered section and the length of that section lies between 1 : 2 ¢ and 1: 6. The invention may be applied to openended containers.
Patent GB-278690-A (GB)
IPC: B61F5/48
Filed: 1927-09-22
Abstract: 278,690. Schweizerische Lokomotivund Maschinenfabrik. Oct. 9, 1926,' .[Convention date]. Petrol-electric vehicles of the kind in which the driving wheels 8 are operated by electric motors partly supported on radius bars 6, 6<1> connecting the axles 2, 2<1> and an independent carriage 3, derive the motive power from a generator 5 driven by Diesel engines 4, 4<1> and mounted on the carriage 3.