baber/WOPTO huggingface dataset:
Patent GB-700554-A (GB)
Title: Improvements in or relating to heat exchangers
Inventor: APPLEBY ROBERT
IPC: F24H1/18
Filed: 1950-09-29
Abstract: 700,554. Hot-water boilers. PARNALL (YATE), Ltd. Nov. 19, 1951 [Sept. 29, 1950], No. 23945/50. Class 64(1) The parts of a gas-fired water heater that are exposed to the hot gases are made from a composite material comprising copper or a copper alloy, with a layer of stainless steel bonded to its surface. The copper can be made thinner than usual, the structural rigidity being provided by the steel. Preferably, the copper is deposited electrolytically upon the stainless steel. and for fins, which are exposed to hot gases upon both sides, the sheet is then doubled by bending to produce an arrangement with the copper layer innermost.
Patent GB-448974-A (GB)
Title: Improvements in or relating to sound reproducing systems
IPC: H04R9/16
Filed: 1935-08-28
Abstract: 448,974. Reproducing music. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A. Aug. 28, 1935, No. 24039. Convention date, Sept. 22, 1934. Addition to 448,973. [Class 40 (iv)] In the system, described in the parent Specification, of reproducing from a record having two traces in the same groove by means of a pick-up, such as described in Specification 448,975, with two coils 16, 17 each responding to both traces, the four transformers for separating the two reproductions are replaced by two transformers 40, 41 each having two secondaries of which 43 and 45 are connected in aiding relationship and 42, 44 in opposing relationship so that the hill and dale trace is reproduced at 47 and the lateral trace at 49.
Patent GB-1508042-A (GB)
Title: Dihydroxycalciferols
IPC: C07J9/00
Filed: 1975-06-04
Abstract: 1508042 Dihydroxychlolecalciferols TEIJIN Ltd 4 June 1975 [18 June 1974 9 Dec 1974 (4) 27 Dec 1974 (5)] 24138/75 Heading C2V The invention comprises 1α,24(S)-dihydroxycholecalciferol and la,24(R)-dihydroxycholecalciferol of formula derivatives of these compounds where one, two or all three of the hydrogen atoms of the hydroxy groups are replaced by protective groups which may be removed by hydrolysis, and isomeric mixtures of the hydroxy compounds or their derivatives. The compounds are prepared by reacting a compound of formula with an alkali metal and a proton donor in the presence of ammonia or an amine to obtain converting this to the benzoyl derivative where R<SP>114</SP> is a benzoyl group and R<SP>5</SP> is hydrogen or a protective group, separating into the two isomers by chromatography using a carrier containing silicon dioxide; reacting at least one of the isomers with an allylic brominating agent and then dehydrobrominating to form hydrolysing to form separating and recovering at least one of the isomers by contacting a solution of the hydrolysed products with a carrier containing silicon dioxide having absorbed thereon non-metallic silver; if necessary protecting at least one of the hydroxy groups and exposing at least one of the thus formed compounds of formula where R 1 , R 2  and R 3  are hydrogen or protective groups, to ultra-violet radiation and then isomerizing the resulting product and, if necessary, splitting off the protective group or groups. The compounds of the invention have vitamin activity and may be used in pharmaceutical compositions.
Patent GB-1493779-A (GB)
Title: Press frames particularly for transportable vulcanization presses
IPC: B29C35/00
Filed: 1976-06-10
Abstract: 1493779 Vulcanization press WAGENER & CO 10 June 1976 [20 June 1975] 24143/76 Heading B5A [Also in Division C3] A vulcanization press suitable for repair of conveyer belts or making endless belts of rubber or plastics comprises press platens 1 and 2, between which belt 3 is arranged for treatment, and has two press frames, each consisting of an upper pressure cross-beam 4, a lower pressure cross-beam 5, clamping tie-rods 6 and a row of pressure-cylinder and piston units arranged in upper cross-beam 4. Each pressure cross-beam is formed as a one-piece sectional beam of box girder form consisting of two side-walls 8 with stiffening flanges 9 and two internal webs 10 spaced from one another by the box dimension and joining the side walls together with portions 11, 12 of the side walls 8 having flanges 9 extending above and below beyond the webs 10. A continuous pressure bar 13 is located between portions 11 of the side walls 8, with associated pressure-cylinder pistons 7 set into holes 14 in webs 10. Side walls 8 may be provided with lateral bulges in the region between webs 10, as illustrated in Fig. 4 (not shown). Pressure bar 13 has foot portion 17 and head portion 18, the former having cavities 19 and upper corner chamfers 20. Each portion 18 is attached to rod 22 of piston 21 of units 7, the end of rod 22 resting in recess 23. The bar 13 is hung from lower web 10 by springs 24.
Patent GB-251847-A (GB)
Title: Vehicle with an endless flexible track
IPC: B62D11/20
Filed: 1925-09-28
Abstract: 251,847. Allenspach, C. V. Sept. 28, 1925. Adjusting fore-carriages and bogies for steering. - Single or double endless-tracks are mounted on fore-carriages or frames 13, 33 which are swivelled for steering about vertical shafts 52 by power-driven worm gearing (not shown).
Patent GB-930166-A (GB)
Title: Fueling system for transferring fuel between reservoir means and vehicle fuel tanks
IPC: B64F1/28
Filed: 1961-07-05
Abstract: 930,166. Dispensing liquids. R. T. HEADRICK. July 5, 1961 [July 11, 1960], No. 24267/61. Class 116. In apparatus for transferring fuel from a reservoir to the fuel tanks of aircraft, a pump 22, Fig. 1, in a main pumping station 19 draws fuel from reservoirs 10 through valve controlled hoses 18 and passes it via valve controlled hoses 28, 28A to a number of service stations 30 disposed adjacent the fuel tanks and connected by hoses 54, 57 to nozzles 56, 58 adapted to be connected to the tanks. The pressure at the outlet of the pump 22 is maintained at or below a predetermined pressure by a highpressure relief valve 34 connected between the inlet and outlet of the pump 22 through a fuel cooling device 36. Each servicing station 30 includes a pump 68, Fig. 2, associated with a pair of interconnected valves 62, 64 which in one setting connect the pump inlet via port 50 to a hose 28A, and the pump outlet via a port 52 to a hose 54 or 57, and in another setting connects the pump outlet to the hose 28A and the pump inlet to the hose 54 or 57. Thus the apparatus may be used for either feeding fuel to the aircraft tanks or for discharging fuel therefrom. The pressure at the outlet of each pump 68 is higher than the predetermined maximum pressure at the outlet of the pump 22 so that fuel may be returned to the reservoir 10 while the pump 22 is operating. Thus some of the stations 30 may return fuel to the aircraft fuel tanks whilst others are withdrawing fuel therefrom. Each station 30 includes pressure control valves, a fuel filter system, and a device for separating water from the fuel.
Patent GB-337822-A (GB)
Title: Process for the treatment of lyes from chlorinated burnt pyrites
IPC: C01G49/00
Filed: 1929-08-08
Abstract: 337,822. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). Aug. 8, 1929. Zinc chloride and sulphate. - Lyes obtained from chlorinated burnt pyrites are freed from iron by oxidizing the latter with an alkaline-earth metal chlorate, for instance with a calcium chlorate lye, and then precipitating with quick lime. Copper is first removed by addition of iron.
Patent GB-230124-A (GB)
Title: New or improved game or amusement apparatus
IPC: A63F7/06
Filed: 1923-10-01
Abstract: 230,124. Padgett, G. C. Oct. 1, 1923. Table games.-In the board game apparatus claimed in Specification 223,640 wherein dolls or figures are electrically operated when parallel or concentric contact strips are bridged by discs or pennies thrown by the players, the completed circuits are used also to give other visible or audible signals, for instance, the illumination of score numerals, the lighting of a lamp or the sounding of a bell. As shown in Fig. 1, the contact strips N, P may incline towards each other, and when a strip is divided into sections, these may be of different widths thus varying the distance 3 from the adjacent strip. Numerals S which may be of the transparent, translucent or perforated kind, are illuminated upon closure of the circuit following a successful throw, in order to give the score according to the position of the penny D on the contact strips. The numerals may be of opaque material and may be displayed by being brought against the underside of a glass window by means of an electromagnet. In modifications, the contact strips are arranged in diamond-shaped formation, or so as to form the face or figure of a person, or as a combination of inclined strips and of vertical and triangular strips.
Patent GB-1170608-A (GB)
Title: Improvements in or relating to Gunn Effect Semi-Conductor Arrangements
IPC: H03K3/02
Filed: 1966-11-02
Abstract: 1,170,608. Gunn effect pulse multiplier circuits. TELEFUNKEN PATENTVERWERTUNGS-G.m.b.H. 2 Nov., 1966 [15 Dec., 1965], No. 24503/69. Divided out of 1,170,607. Heading H3T. A Gunn effect pulse-multiplying circuit comprises a plurality of Gunn effect elements Pr1, Pr2 . . . connected in parallel with a D.C. bias source U and a common load resistance R1 means for applying a pulse to be multiplied to the first element Prl to initiate or interrupt oscillation in the element and thereby produce a voltage jump as output from the element, means for applying this voltage jump to the second element Pr2 to produce an output voltage jump from the second element ... and so on, the arrangement being such that each pulse applied to the first element produces across the common load resistance R1 a number of pulses corresponding to the number of elements Pr. In the circuit illustrated, each element Pr has an insulated control electrode St1, St2. . ., the pulse to be multiplied being applied to the electrode St1 and the output from each element being applied to the control electrode of the next element through a condenser C and an optional delay device VZ. In a modified circuit each control electrode forms a PN junction with the element.
Patent GB-918706-A (GB)
Title: Information exchange centre
IPC: H04L17/00
Filed: 1959-07-17
Abstract: 918,706. Calculating-apparatus. OLYMPIA WERKE A.G. July 17, 1959 [Oct. 27, 1958], No. 24630/59. Class 106 (1). Apparatus placed beneath a known type of calculating machine and coupled to it electrically and mechanically is arranged to feed coded information into the machine and transmit output signals from the machine to a recording mechanism. General arrangement, Fig. 1. The mechanical connections to the calculating machine I are shown in chain lines, the electrical in full lines. A perforated strip feeder feeds a 5-unit code to decoder IV which is connected through an intermediate decimal circuit III to a device II. The device II comprises a series of electromagnets whereby the keys of a known type of calculating and recording machine are operated. Alternatively, the decimal circuit III may receive an input directly from a further known type of calculating machine. The machine I is connected mechanically to a multi-position switch IX which converts the output of the machine into electric signals. These signals are fed by devices X, XII, VIII, respectively in decimal, 5-code or series code to recording apparatus such as a printer, strip perforator or teleprinter, respectively. The machine I records all data passing through the machine at XIV. Calculations performed on another machine may be checked by using a perforated strip prepared by the other machine as input. The machine I repeats the calculations and prints both its own result and the result obtained by the other machine. Specifications 890,586 and 918,707 are referred to.
Patent GB-462247-A (GB)
Title: Improvements in or relating to valve amplifying circuits for television and like purposes
IPC: H03F1/33
Filed: 1935-09-04
Abstract: 462,247. Valve amplifying circuits. BROWN, A. J., and BAIRD TELEVISION, Ltd. Sept. 4, 1935, No. 24656. [Class 40 (v)] Distortion due to the characteristic of an associated circuit or device, e.g. the modulation characteristic of a cathode-ray tube in which the light intensity is generally not proportional to the modulating potential, is compensated by a parallel valve arrangement. One valve is a triode capable of handling large signals while the other is a variable-mu valve, the screen potential of which may be varied. The signals are preferably applied in the negative sense and means provided such as the potentiometer 3 to control the ratio of the signal applied to the two valves. The Figure shows an arrangement in which a resistance 5 is included in the triode output to prevent loss of the gain from the variable-mu valve 1, the output being taken from the common load resistance 4.
Patent GB-414907-A (GB)
Title: Improvements in or relating to ribbon microphones
IPC: H04R9/08
Filed: 1933-09-06
Abstract: 414,907. Microphones. KOLB, O. K., 4, Courtfield Gardens, Earl's Court, London. Sept. 6, 1933, No. 24704. [Class 40 (iv).] A ribbon microphone comprises a very thin ribbon 3 of an aluminium magnesium alloy, such as that known under the Registered Trade Mark '' Duralumin " about 0À001 mm. thick, clamped at 4 at both ends and kept straight with a minimum of tension. The ribbon, which may have a width of about 2 mm., a free length of about 50 mm. and a natural resonance of about 50 cycles, may be smooth, corrugated throughout its length or provided with a ripple adjacent each end. It may also be perforated or formed of interwoven wires or bands. The ribbon is suspended in the air gap 2 of a permanent magnet 1 of such a form that the front and back of the ribbon are both influenced by the vibrating air over the whole frequency range concerned. The pole shoes are preferably slotted as shown at 6, 'the slots being so dimensioned that the shortest air path from the front to the back of the ribbon is about 25 mm. The Provisional Specification refers to an aluminium foil ribbon.
Patent GB-1130706-A (GB)
Title: Production of concentratable solutions and concentrated solutions of organic peroxides
IPC: C07C409/00
Filed: 1967-05-26
Abstract: 1,130,706. Organic peroxides. CHARBONNAGES DE FRANCE. 26 May, 1967 [31 May, 1966], No. 24736/67. Heading C2C. Organic peroxide solutions are rendered concentratable by contacting with an ion exchange resin of the strong acid type at approximately room temperature, said peroxide being a peroxide of a cyclic alcohol, removing said resin and recovering said peroxide solution. The ion exchange resins to be employed are crosslinked polystyrenes, usually with divinyl benzene as cross-linking agent, containing sulphonic acid groups. In examples cyclohexanol is oxidized with oxygen and the product treated ion-exchange resin and concentrated under reduced pressure. Apparatus for carrying out the process is described with reference to Figs. 1-3 (not shown).
Patent GB-944363-A (GB)
Title: Photographic reproduction
IPC: C08G61/00
Filed: 1960-07-15
Abstract: Resinous products are obtained by Friedel-Craft reaction of (1) an aralkyl halide with itself, or (2) an aromatic carbocyclic or heterocyclic compound with a halogenated hydrocarbon containing at least 2 halogen atoms.  Specified aralkyl halides are benzyl chloride, benzyl bromide and 1-chloromethyl-naphthalene. Specified aromatic compounds are benzene, diphenyl, terphenyl, naphthalene, 2-methyl-naphthalene, 2-chloro-naphthalene, 2-dimethyl-aminonaphthalene, anthracene, phenanthrene, acenaphthene, fluoranthene, dibenzofuran, benzo-naphtho-furan, 9-methyl-carbazole, 9-ethyl-carbazole, and mixtures of these.  In general the nuclei may be substituted by alkyl, alkoxy, halogen or dialkylamino.  Suitable halogenated hydrocarbons are methylene chloride, ethylene chloride, 1:2-dibromopropane, 1:2:3-tribromopropane, 1:3- and 1:4-dibromobutane, 1:2- and 1:4-dichlorobutane, 1-chloro-4-bromo-butane, 1:5-di-iodo-pentane, 1:10-di-bromodecane, benzylidene dichloride, p-xylylene dichloride, dibromide and di-iodide, 9:10-bis-chloromethyl-anthracene, halogenated polymers such as chlorinated polyethylene, and mixtures of these. The products usually contain halogen but some do not. The reaction takes place in an inert solvent such as tetrachlorethane, chlorobenzene or carbon disulphide.  The catalyst may be aluminium chloride or bromide, ferric chloride or stannic chloride.  Photoconductive compositions contain the above reaction products with dyestuffs, pigments (ZnO, TiO2), electron-accepting substances as activators, and optionally other resins, e.g. ketone resins or chlorinated polyvinyl chloride. Specified electron-accepting substances are those with strongly polarizing groups such as cyano, nitro, halogen, ketone, quinone, ester, acid or anhydride.  Specified solvents for the reaction products are butanone, benzene and toluene. Compositions containing the stilbene and diarylbutadiene compounds of Specification 944,362 are disclaimed.
Patent GB-349386-A (GB)
IPC: H01H85/42
Filed: 1930-08-19
Abstract: 349,386. Fusible cut-outs. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London.-(Assignees of Sandin, J.; 349, Avenue F, Forest Hills, Pennsylvania, U.S.A.) Aug. 19, 1930, No. 24814. Convention date, Aug. 20, 1929. [Class 38 (i).] A fuse mechanism comprises an insulating housing 7, Fig. 1, having recesses in which contacts 29, 31 are mounted and closed by a hinged door 15 on which the fuse cartridge 22 is mounted. The fuse cartridge comprises an insulating tube 41, Fig. 5, upon which are mounted two contact blocks 42, 53, the upper one 42 having an extension on which screws a cap 43 having a stud 45 for interlocking with a supporting bracket 23 mounted on the cover 15. The fusible strip 56 passes through a second insulating tube 58 and is clamped at the upper end between the contact 42 and the cap 43 and at the lower end by a nut 55. To mount fuse cartridge its lower end is passed through a hole 21 in a projection 18 of the cover and at its upper end the stud 45 is engaged in the slotted clip 23 by a transverse movement. A spring 52 prevents the fuse cartridge slipping and a projection 46 engaging with a recess 48 prevents wrong insertion. The contact fittings comprise a U-shaped member 31, Fig. 4, resiliently supported by a spring 33 and fitted with latch pieces 34 that engage in recesses 36 in the insulating mount and hold the contact fitting in position. The housing has clips 27 that engage with extensions on the clip 23 and retain the door closed. A modified form of bracket 23<1> (Fig. 7, not shown), has a V-shaped opening.
Patent GB-1530641-A (GB)
Title: Aluminium phosphate binder composition containing alcohols or acids
IPC: B22C1/16
Filed: 1976-06-16
Abstract: 1530641 Aluminium phosphate binder compositions ASHLAND OIL Inc 16 June 1976 24830/76 Addition to 1448612 Heading C3N A binder suitable for binding foundry aggregates is obtained by mixing: (1) an aluminium phosphate containing boron in an amount 3-40 mole per cent based upon the moles of aluminium and containing a mole ratio of phosphorus to total moles of aluminium and boron of 2 : 1-4 : 1; (2) at least one alkaline earth metal compound capable of reacting with the aluminium phosphate and containing an alkaline earth metal and oxygen, (3) water, and (4) an additive comprising one or more compounds which are solid at room temperature, soluble in aqueous solutions of the aluminium phosphate and are polyhydric alcohols or organic carboxylic acids which include as part of their chemical structure a group of the formula in which one or both carbon atoms may be attached to a carbonyl oxygen and in which the compound contains 1-10 carbon atoms per hydroxy group, or a keto tautomer of such compounds; in which the amount of the aluminium phosphate is in the range 50-95% by weight based on the total weight of (1) and (2); the amount of alkaline earth metal compound is 5-50% by weight based on the total weight of (1) and (2); the amount of water is 15-50% by weight based on the total weight of (1) and (3) and the amount of additive (4) is 0À5-25% by weight based on the weight of (1) and (4). Suitable additives include sorbitol, sucrose, inert sugar, glucose, dihydroxysuccinic acid (tartaric acid), gluconic acid, 1,2,6- hexanetriol, lactic acid, citric acid and oxalic acid. The alkaline earth metal compound may be a mixture of magnesium oxide and calcium aluminate. The aluminium phosphate may be prepared by reacting together phosphoric acid, boric acid and hydrated alumina.
Patent GB-697147-A (GB)
Title: Improvements in or relating to sawtooth oscillation-generators
IPC: H03K4/12
Filed: 1951-10-25
Abstract: 697,147. Saw-tooth generating circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 25, 1951 [Oct. 28, 1950], No. 24951/51. Class 40 (vi). The invention relates to saw-tooth generators of the type in which a capacitor 2 is charged through a resistor 4 and discharged rapidly through a valve having its screen and control grids coupled to a circuit to cause it to oscillate continuously and so to render the valve conducting for a short portion of the oscillation cycle. According to the invention a resistor 3 is included in series with the capacitor across the valve to produce a negative voltage pulse during the flyback and the circuit constants are such that the load lines intersect the steep portion of the anode current/anode voltage characteristics. The negative pulse does not then follow the sinusoidal shape of the grid voltage and is substantially rectangular. As the valve only conducts for a very short period the frequency of operation depends only on the tuned circuit and is very stable.
Patent GB-1307871-A (GB)
Title: Connections to flat flexible cables
IPC: H05K3/30
Filed: 1970-05-22
Abstract: 1307871 Joint MEKTRON NV 22 May 1970 [23 May 1969] 24971/70 Heading H2E A flat, multicore, flexible cable 8 is joined to a connector such as a printed circuit board 22 with terminal pads 24 by first stripping the insulation 13 from one face of the cable adjacent one end of the cable and bending the stripped portion back to provide bare conductors 10 on both sides of the cable, aligning the cable conductors with respective pads 24 and fixing the cable thereto with an adhesive 28 and then wave soldering the conductors 10 to the pads 24 with solder 32. Cable insulation 12, 13 of an aromatic polyimide resin may be stripped as described in Specification 1,104,097. Epoxy resin may be used as the adhesive if the insulation is either a polyimide or polyimide polyamide resin.
Patent GB-1010466-A (GB)
Title: Improvements in or relating to adhesive compositions
IPC: C08L23/06
Filed: 1962-05-29
Abstract: A thermoplastic adhesive composition which is, at room temperature, solid, dry, non-tacky, and dimensionally stable, comprises resinous polyethylene, isobutylene polymeric material, hydrocarbon resinous material having a softening point of at least 85 DEG  C. and possessing when molten at least a limited solvent action on the resinous polyethylene, and a copolymer of ethylene and vinyl acetate having 0.5 to 10 moles of ethylene for each mole of vinyl acetate and having a melting point of from 90 DEG  C. to 125 DEG  C.  Preferably the composition comprises 15 to 60% of resinous polyethylene, 10 to 35% of isobutylene polymeric material, 10 to 60% of hydrocarbon resinous material and 10 to 40% of ethylene/vinyl acetate copolymer. The isobutylene polymeric material may be a rubbery polyisobutylene having a molecular weight of 100,000 or a sulphur vulcanizable rubbery copolymer of isobutylene and a diolefine, e.g. isoprene or butadiene, having 98 parts of isobutylene and 2 parts of diolefine, and a molecular weight of 100,000.  The hydrocarbon resinous material may be a polyterpene, preferably a poly-beta-pinene resinous material having a melting point from 85 DEG  C. to 125 DEG  C. Preferably the ethylene/vinyl acetate copolymer has 2 to 4 moles of ethylene for each mole of vinyl acetate and a melt viscosity at 190 DEG  C. of 150,000 to 900,000 centipoises and a sheer rate of 20 reciprocal seconds.  An antioxidant may be added to the adhesive composition and the composition may be formed into a strand of rod cement. Specification 793,444 is referred to.