baber/WOPTO huggingface dataset:
Patent GB-803626-A (GB)
Title: Improvements relating to thermistor mounts
IPC: G01R21/00
Filed: 1956-07-19
Abstract: 803,626. Impedance matching. POLYTECHNIC RESEARCH & DEVELOPMENT CO., Inc. July 19, 1956 [Oct. 25, 1955], No. 22439/56. Class 40 (8). A thermistor bead 1 is mounted in a section of ridged rectangular waveguide 2 between the ridge 7 and the opposite broad wall of the waveguide. This enables the connecting leads to be kept short so that the thermistor presents a substantially resistive impedance. The ridge 7 has a uniform width of about one-fifth of the broad dimension of the guide and is provided with quarter-wavelength steps 7a, 7b, 7c, 7d designed. to provide constant characteristic impedance at the input over the frequency band utilized. The end of the waveguide is shortcircuited by a plate 8 and the length of the end section 7f is chosen so that an open circuit is seen by the thermistor bead. The height of the ridge in section 7f is designed so that the impedance of this section is three times the impedance of the ridged waveguide. The thermistor output lead is connected to the inner conductor of a coaxial line 4. A conductive bead 6a and dielectric washer 6b provide a path to earth for microwave energy. Alternatively, the output terminal of the bead may be connected to the central conductor of the connector 4 through a half-wavelength stub line.
Patent GB-859268-A (GB)
Title: Improvements in or relating to folding and sliding closures
IPC: E06B3/48
Filed: 1959-06-30
Abstract: 859,268. Folding and sliding closures. DAVIDSON, C. E. June 30, 1959, No. 22462/59. Class 20(3) A folding and sliding closure comprises a number of strips 10 of e.g. wood of equal width and length with hinges of flexible material 13h e.g. fabric adhered to the longitudinal edges of the strips whereby they unfold in alternate directions. The closures are made by clamping the requisite number of strips 10 face to face and smoothing their longitudinal edge surfaces. The flexible material is then glued to the two prepared surfaces and when set the material is slit lengthwise of the edges of the strips, between each strip but on alternately opposite sides of the assembly.
Patent GB-350790-A (GB)
Title: An improved door-stop
IPC: E05F5/06
Filed: 1930-07-25
Abstract: 350,790. Door stops. HEDLEY, J., Newbiggin, Thoralby, Leyburn, Yorkshire. July 25, 1930, No. 22466. [Class 65 (i).] A door stop, for fixing to the floor or to an arm projecting from the lintel, consists of a pad a of rubber or other material having one or more resilient projections b to engage the lower or upper edge of the door near the pivotal axis and hold the door open. A single projection in the form of a ramp over which the edge of the door rides may be used.
Patent GB-977123-A (GB)
Title: Means for attaching a windscreen to a motor-cycle or like vehicle
Inventor: SMITH FRANK
IPC: B62J17/04
Filed: 1962-06-12
Abstract: 977,123. Motor-cycle windshield attachments. STRATFORD AUTO COMPONENTS Ltd. May 30, 1963 [June 12, 1962], No. 22478/62. Heading B7J. [Also in Division E2] A support for a motor-cycle windshield comprises two members 6 having screw-threaded ends adapted to close the two parts 3, 4 of a clamp on to the headlamp frame of the cycle.
Patent GB-614781-A (GB)
Title: New coating compositions
IPC: C08F10/00
Filed: 1946-07-29
Abstract: Polymerized 4-vinylcyclohexene is used as the resinous constituent of coating compositions.  Preferably, the polymer is heated with a fatty oil, e.g. linseed, menhaden, oiticica, perilla, soyabean, tung or dehydrated castor oils in an inert gas, e.g. carbon dioxide, and the varnish formed thinned with solvents, e.g. mineral spirits, p-xylene and naphthas and a cobalt drier added.  The coating compositions may include glyceryl phthalate resins which may be formed in situ and pigments.  They may be applied to metal, wood, glass, textiles and plastics and air-dried or baked.  Specification 596,008 is referred to.
Patent GB-442160-A (GB)
Title: Process for the orthochromatic sensitisation of photographic silver halide emulsions
IPC: G03C1/18
Filed: 1934-08-03
Abstract: Silver halide emulsions are rendered orthochromatic by the incorporation therein of benzoxoindolenine carbocyanine dyes substituted in one or both benzene nuclei fused on to the heterocyclic rings, by alkyl or alkyloxy groups or both, and unsubstituted in the trimethine chain.  The dyes are obtained by condensing the quaternary ammonium salts of 2-methyl-benzoxazole or 2-methyl-indolenine with diphenyl formamidine in the presence of acetic anhydride and condensing the intermediate product with the appropriate 2-methylindolenine or 2-methyl-benzoxazole in the presence of pyridine; or by condensing an indolenine compound having in a -position to the nitrogen atom a reactive methylene group, one hydrogen atom of which has been replaced by an aldehyde group, with a quaternary ammonium salt of 2-methyl-benzoxazole in solution in pyridine, nitrobenzene or acetic anhydride in the presence of a condensing agent such as phosphorus oxychloride or piperidine.  In examples: (1) 2-methyl-6-methoxybenzoxazole is prepared by distilling the corresponding ortho-aminophenol with acetic anhydride and is converted into the ethiodide by heating with ethyl iodide.  The product is condensed with diphenyl formamidine in acetic anhydride and the intermediate so formed is condensed with 1 : 2 : 3 : 3-tetramethylindolenine in pyridine to form 1-ethyl-1<1>-methyl - 5 - methoxy - benzoxoindolenine carbocyanine iodide; (2) ortho-aminophenol is distilled with acetic anhydride and the product heated with ethyl para-toluene-sulphonate.  The 2-methyl benzoxazole-p-toluene sulphonate so formed is condensed with diphenyl-formamidine and acetic acid and the product condensed with 1 : 2 : 3 : 3 : 5 : 6 hexamethylindolenine methiodide in pyridine and precipitated p  with sodium perchlorate to form 1 - ethyl - 1<1> - methylbenzoxo - 5<1> - 6<1> - dimethyl-indolenine carbocyanine perchlorate; (3) methylformaniline is mixed with phosphorus oxychloride, orthodichlorobenzene and 1 : 3 : 3 : 5 - tetramethyl-2-methyleneindolenine and distilled.  The resulting 2-methylene o -aldehyde is condensed with 2 : 5 : 6-trimethylbenzoxazole dimethylsulphate in pyridine and the dye precipitated with potassium iodide; (4) the dye 1-ethyl-1<1>-methyl-5-methoxybenzoxo-5<1> -methylindolenine carbocyanine iodide is formed by condensing 2-methyl-6-methoxybenzoxazole ethiodide with the intermediate of (3) in pyridine; (5) a mixture of methyl formaniline, sulphuryl chloride, dichlorobenzene and 1 : 3 : 3 : 5 : 6 pentamethyl-2-methylene-indolenine is distilled and the resulting methylene-o -aldehyde condensed with 2 : 5 : 6-trimethylbenzoxazole dimethyl sulphate in pyridine to form the dye 1 : 1<1> : 5 : 6-tetramethylbenzoxo-5<1> : 6<1>-dimethylindolenine carbocyanine iodide.
Patent GB-583686-A (GB)
Title: Improved compositions comprising polyvinyl fluoride
IPC: C08K5/17
Filed: 1944-11-17
Abstract: Polyvinyl fluoride is stabilised against decomposition by heat by mixing therewith from 0.1 to 5 per cent by weight of a formaldehyde-reactive compound.  This is defined as an organic compound having a replaceable hydrogen atom attached to a nitrogen or to a phenolic oxygen atom, e.g. primary and secondary amines and amides and phenols.  Those preferred are the amines and amides and specified are urea, dicyclohexylamine, hexamethylene-bis-urea, biuret, monoacetylurea, monobenzylurea, cyanamide, dicyandiamide, diethylene triamine, melamine and furylamine.  Orientable polyvinyl fluoride is preferred and a method of preparing it is described, viz.: by heating vinyl fluoride in the presence of an organic peroxy compound under a pressure of 150 atmospheres.  The stabilisers may be incorporated by dissolving both the polyvinyl fluoride and the stabiliser in a mutual solvent and evaporating off the solvent, by grinding them together or by mixing in a mill.  The resulting mixture can then be pressed between aluminium sheets at raised temperatures and pressures resulting in a water-white film.  Alternatively, the mixture is injection-moulded.  The moulded products may be useful in melt spinning of polyvinyl fluoride and in calendering operations requiring temperatures above 200 DEG  C.  Specifications 451,725 and 576,293 are referred to.
Patent GB-850044-A (GB)
Title: Method for analysing gaseous or liquid mixtures
IPC: G01N27/22
Filed: 1958-07-16
Abstract: 850,044. Electric tests. HUMMEL, H. July 16, 1958 [July 18, 1957], No. 22812/58. Class 37 Apparatus for analysing a fluid medium, especially a gaseous mixture, comprises two electrodes constituting a capacitor, in the form of a chamber, connected in a circuit with a potential source and a resistor and an amplifier, of which the input is connected across the resistor and the output supplies an indicating or recording instrument, and is characterised in that the test medium either forms the dielectric of the capacitor and is subjected to periodical changes of pressure, or is admitted to and discharged from the capacitor alternately with a reference medium. A cavity resonator, whose resonant frequency is a function of the dielectric constant of the medium with which it is filled, may replace the capacitor. As shown, Fig. 1, the test medium is admitted to the chamber formed by two circular electrodes 1, 2, and a tubular ring 3 of insulating material, through a capillary 4, and leaves by a capillary 5. The pressure within the chamber is continuously varied by the reciprocating action of a piston 7 within a cylinder 6 let into electrode 2. The electrodes 1, 2, are connected in a D.C. circuit comprising a resistor R, the p.d. across which is amplified at 9 and indicated or recorded on an instrument 10. In a modification, Fig. 3 (not shown) the cylinder and piston are omitted and the pressure fluctuations within the chamber are effected by the rotation of a perforated disc against the outlet pipe 5. In Fig. 2, the test medium is delivered at a constant pressure via pipe 141 and is admitted to the chamber during alternate half-cycles of operation of a rotating valve 15; when pipe 141 is closed, an exhaust pipe 142 is opened. In a modification, Fig. 4 (not shown), the test medium is applied through pipe 141 alternately with a reference medium which is admitted via pipe 142, an exhaust pipe from the chamber being provided opposite pipe 14. Applications of the invention include measuring the concentration of ammonia in air, controlling the ammonia content of a nitrogenhydrogen mixture, and gas chromatography.
Patent GB-1179735-A (GB)
Title: Opening apparatus for the Ends of Tube Sections
IPC: B31B50/80
Filed: 1967-05-17
Abstract: 1,179,735. Opening bag sections. WINDMOLLER & HOLSCHER. 17 May, 1967 [18 May, 1966; 24 April, 1967; 25 April, 1967], No. 22833/67. Heading B5D. Apparatus for pulling open the ends of tube sections 4 of plastics material sheeting which comprises two vacuum tools which revolve in opposite senses, is characterized in that the lower vacuum tool 2 has alternate crests and troughs which extend at right angles to the open edge of the tube section, the vacuum openings 10 of this tool being in the troughs and the vacuum openings 9 in the upper tool 1 being in registry with the crests in the closed position of the tools. The troughs may diminish in depth from a maximum at that side of the tool nearest the open edge of the bag section, and there may be two or more vacuum openings in each trough which may be selectively actuated as by connection to separate air lines or by valve means. Since the tube section is clamped by folding blades there is undesirable relative movement between the vacuum tools and the tube plies sucked thereagainst as opening proceeds. Further if the vacuum tools move at uniform linear velocity equal to the speed of advance of the tube sections, then there is a relative movement between the tools and the bag section as opening continues. To overcome these disadvantages the axes of rotation of the suction tools may be inclined, Figs. 7, 9 (not shown), and the tools may be driven at a non- uniform speed as through elliptical gearing, Fig. 10 (not shown).
Patent GB-802844-A (GB)
Title: Improvements in or relating to devices for protecting the scalp during the treatment of locks of hair
IPC: B24D3/28
Filed: 1956-07-24
Abstract: 802,844 Hair-waving appliances. PERMA. July 24, 1956 [Aug. 4, 1955], No. 22852/56. Class 131 A scalp protector for use while permanently waving, tinting, or bleaching hair comprises two flat members 1, 2 of heatinsulating material such as rubber or plastic, each pivotally mounted on an arm 4, 5 of a resilient clip formed of metal wire bent or coiled at the junction 6, fastening means for the device being provided at the free ends of the arms. The arms constrained to opening in single plane by flattening of the wire at the junction 6 are received in hems, formed by gluing the folded over edges 3 of the members 1, 2, or in slots moulded in the members. In selective bleaching of the hair, locks to be treated are retained above the members 1, 2 while locks to be left untreated are held below the members by hair pins 16 passing through perforations 15.
Patent GB-228699-A (GB)
Abstract: 228,699. Baker, J. Jan. 28, 1924. Supports for articles to be heated. - A loose grid for supporting utensils over the fire in a domestic stove or range comprises an open frame 1 with end shoulder-pins 3 adapted to lodge on the hobs, and depending projections or legs 5 adapted to abut against the inner faces of the hobs to retain the grid in position.
Patent GB-757216-A (GB)
Title: Improvements in or relating to pneumatic gauging apparatus
Inventor: BOOSEY FREDERICK ROBERT
IPC: G01B13/00
Filed: 1953-08-20
Abstract: 757,216. Pneumatic gauging apparatus. SIGMA INSTRUMENT CO., Ltd. Aug. 20, 1954 [Aug. 20, 1953], No. 22988/53. Class 106 (2). [Also in Group XXIX] A pneumatic gauging device consists of a venturi formed of two tapered tubes 2, 3 joined by a collar 8, their ends being spaced to provide a chamber 9 which communicates with the throat 11 around the whole peripheral extent of the throat and through an outlet 10 with 'a pressure sensitive device. Pressure air enters at IB and the measuring jet is connected to 1A.
Patent GB-1010942-A (GB)
Title: Improvements in or relating to fluid pressure-operated braking apparatus
Inventor: FARMERY GEORGE KENNETH
IPC: B60T13/36
Filed: 1961-06-26
Abstract: 1,010,942. Valves; fluid-pressure brakes. CLAYTON DEWANDRE CO. Ltd. June 13, 1962 [June 26, 1961], No. 23016/61. Headings F2F and F2V. A control valve for two separate braking systems, i.e. the front and rear wheels of a vehicle, has two air-supply ports 39, 41, each with its associated service port 40, 42, respectively; these ports may be duplicated. In the inoperative position shown, spring- loaded tubular valve-closures 22, 22a abut seatings 25, 30 the former being carried by the upper part 14 of a two-part secondary piston 14, 14 a ; since the stem 31 of a primary piston 13 is spaced from closure 22, and the hollow stem 32 of secondary piston part 14a is similarly spaced from closure 22a, the service ports 40, 42 are open to atmosphere via a common passage 33 embodying a check valve 34, the passage 33 being formed by the interior of the closures and the stem 32. A spring 35 is disposed between pistons 13, 14; a further spring 36 is located between piston 14a and its housing. Upon depressing the brake pedal 11 a force is transmitted through single or double graduating springs 18 and a universal connection 21 to depress the piston 13, the stem 31 firstly lapping the closure 22 and then unseating the latter so connecting ports 39, 40; as the pressure builds up above piston 14, 14a it depresses the latter so that stem 32 and closure 22a are similarly actuated to connect ports 41, 42. The pressure above piston 14, 14a also tends to lift piston 13 so providing " feel." When the pressures across the piston 14, 14a are equal the piston rises until the closure 22a is lapped, and when the pressure beneath the piston 13 is sufficient to overcome the applied mechanical force this piston also rises until the closure 22 is lapped. The piston 14, 14a engages a stop 43 upon a heavy brake application in which position both systems are fully open; an upper stop 38 is also provided. The primary system 39, 40 will continue to function if the secondary system fails; if the primary system fails the piston 13 is moved into engagement with piston 14, 14a to actuate the secondary system directly. If either of the seals 45 of piston 14, 14a fail pressure is lost from one system only via a clearance 44 which is in permanent communication with the exhaust passage 33. The spring(s) 18 may be replaced by a block of rubber or other resilient material and the foot pedal may be remote from the valve.
Patent GB-880092-A (GB)
Title: Improvements in or relating to pressure vessels
Inventor: KNIGHTS HERBERT CHILVERS
IPC: G21C5/10
Filed: 1957-07-19
Abstract: 880,092. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. July 8, 1958 [July 19, 1957], No. 23022/57. Class 39 (4). A support for a heavy structure (e.g. a reactor core) inside a pressure vessel comprises a platform or grid joined to the inside of the vessel by curved webs, the webs having stiffness in the load-carrying direction and flexibility sideways. Three types of web 6 are shown in plan view supporting a core grid 3 in a vessel 1 (support is provided at each end of the core). The webs may be welded at each end (between lines 10 and 11), or welded at one end and pin jointed at the other (between 11 and 12), or welded at one end and riveted tangentially at the other (between 10 and 11).
Patent GB-697572-A (GB)
Title: Method and machine tool for manufacturing tubular sieve-like parts
IPC: B21D28/28
Filed: 1951-10-04
Abstract: 697,572. Punching. ROTOVENT AKT.- GES. Oct. 4, 1951 [Oct. 16, 1950], No. 23129/51. Class 83 (iv). Perforated tubular parts are made by punching a cylindrical blank 1 with a plurality of holes 2 in a row and then shifting the blank and punching another series of holes therebetween. A lathe with headstock 11 and cam-shaft 4 is provided with a punching device P and operating cam 8. A blank is secured to a shank 57 by a split collet expanded by a nut 55 and the shank is inserted into the collet 14 of the lathe. A series of holes 2 are punched by a sub-press mechanism, Fig. 5, actuated by a spring 46 through a bell-crank 44 when released by a cam 8. The headstock is then shifted axially by a cam 10 and lever 16, 18 to position the blank for a second series of interspaced holes and the punches are again actuated. A cam 9 through lever 22 and ratchet 19 then indexes the blank for further rows of holes. A ratchet 29 holds the collet in adjusted position The blank may be moved axially after two series of holes have been punched and the row of holes extended. The punching die comprises an eccentrically bored shaft with lateral holes aligned with the punches.
Patent GB-653480-A (GB)
Title: Process for the preparation of substances with cortical hormone activity
IPC: C07J75/00
Filed: 1948-09-02
Abstract: A process for the preparation of cortical hormones with an oxygen group at the carbon atom 11 and/or their esters, is characterized in that from sarmentocymarine, sarmentogenine or a derivative thereof, such as ethers, esters or ketones as starting material, the double bond in ring E of which is opened by ozone, the ketol group at the carbon atom 17 in the product thus formed is set free by saponification, the hydroxyl group at the carbon atom 14 eliminated with formation of a double bond and the ketol group esterified by a partial esterification process, whereafter the products thus obtained, e.g. pregnene-14-triol-3 : 11 : 21-on-20-acylate-21 or pregnene-14-ol-21-trion-3 : 11 : 20-acylate-21 are converted into corticosterone or dehydro-11-corticosterone or their esters in a way known per se by hydrogenation and oxidation in an arbitrary sequence, followed by partial dehydrogenation of a possibly present hydroxyl group, a carbon atom 3 and introduction, also in a way known per se of a double bond between carbon atoms 4 and 5.  Detailed examples are given.
Patent GB-262865-A (GB)
Title: A new or improved anti-vibration and shock-absorbing device
IPC: F16F9/22
Filed: 1925-09-17
Abstract: 262,865. Steuart, F. G. Sept. 17, 1925. Fluid-friction vibration-dampers.-The end of a spring is connected to the frame of a vehicle by a dashpot comprising a side-by-side disposition of cylinder and liquid reservoir communicating with one another by a one way valve and a permarent leak, the dashpot being secured to the frame at an angle of approximately 45‹ to the vertical. The spring f, Fig. 1, is connected to the plunger e working in the cylinder a which is connected to the reservoir b by a permanent but adjustable leak orifice t, and a one way valve p. A spring q abutting against the end of the plunger e presses the valve on to its seat. A tapered plunger s, movable with the plunger e passes through a hole in the valve p so as to give a further leak orifice of area varying with the load on the vehicle spring. A tapered groove or flat w may also be formed on the plunger s. In a modification, the pistons and cylinders are in duplicate, the pistons being coupled to one another for operation by the same vehicle spring.
Patent GB-279601-A (GB)
Title: Improvements connected with foldable hood fittings for charabancs, omnibuses and similar vehicles
IPC: B60J7/06
Filed: 1926-09-21
Abstract: 279,601. Hemming, R., Hemming, H., and Hemming, E. Sept. 21, 1926. Hoods. - In char-a-bancs, omnibuses and like vehicles of the kind wherein the hoopsticks of the hood are arranged to slide on side rails which are supported from the body of the vehicle, the side rails d are formed with two channels within which two sets of rollers i, i<2>, Fig. 3, arranged respectively on vertical and horizontal axes are adapted to run. The rollers i, i<2> are mounted in a base member j having a stud j<2> upon which a carrier k, k<2> is pivoted, the carrier being secured to the hoopsticks a<2> to prevent binding if the hoop-sticks become angularly displaced. The hoop-sticks may be operated in various ways and as shown are operated by cables g, h, Fig. 1, and windlasses e, e<2>. The hoop-sticks are interconnected by cables a'.
Patent GB-1458820-A (GB)
Title: Film cassettes
IPC: G03C3/00
Filed: 1973-05-16
Abstract: 1458820 Light-tight film cassette CIBAGEIGY AG 18 April 1974 [16 May 1973] 23350/73 Heading B8M A light proof film cassette comprises a spool 12 in a casing comprising two semi-cylindrical body members 1, 8 of opaque plastic and having end walls with semicircular openings to receive the spool hub, there being a flange 18 on each end of the spool to abut the end wall formed by the two members, the bottom and side edges of the members having overlapping extensions (13, 14 and 15, 16, respectively, Figs. 1, 2, not shown) or interfitting tongues and grooves to light proof the cassette, the members 1, 8 having a lip 2, 9 respectively co-operating to form an exit slot for the film, the end walls of the lips having overlapping extensions or interfitting tongues and grooves, each body member having at each end a semi-cylindrical axial extension of the body on which are present two lugs 3, 4 and 10, 11 respectively, one at each end of the extension, each lug co-acting with a corresponding lug on the other body member to form four pairs of locking means which hold the cassette together. Specification 1,458,819 shows the same cassette. Its claims are directed to the light labyrinth formed by the lips, the cylindrical wall on member 1 and the extension 20 of lip 9 on member 8. The cassette is assembled by bringing rounded lugs 4, 11 together their rounded shape permitting sufficient relative movement to snap lugs 3, 10 together. As shown side extension (14) of member 1 overlaps side extension 13 on member 8 and angled bottom face (15) of member 8 fits over angled face (16) of member 1. The members are moulded from polystyrene, polypropylene, acrylonitrile-butadiene-styrene copolymer, cellulose nitrate or cellulose acetate. The material contains 5% polytetrafluoroethylene to reduce friction and carbon black or titanium oxide plus dye to render it opaque.