baber/WOPTO huggingface dataset:
Patent GB-1529166-A (GB)
Title: Srpocket shift assembly
IPC: B62M9/14
Filed: 1977-08-17
Abstract: 1529166 Chain-shift change-speed gear B W BROWNING 17 Aug 1977 34484/77 Heading F2D A sprocket cluster comprises two parts 35, 36 pivotally interconnected by a pin 39a and each provided with teeth 35a, 35b and 36a, 36b to form two sprockets. To shift the chain  21 from the intermediate sprocket 35a, 36a to a smaller sprocket 34, or from the largest sprocket 36b, 36b to the intermediate one, a locking device 46 is released and the part 36 pivoted about the pin 39a to bring, at the location diametrically opposite the pin, the teeth 36a into the plane of the sprocket 34 and the teeth 36b into the plane of the teeth 35a, the part 36 being restored to its normal position when the shift is completed. A similar movement of the part 35 about the pin 39a is made to effect a shift from a smaller to a larger sprocket.
Patent GB-195155-A (GB)
Title: Improvements in screw-slotting machines
IPC: B23G9/00
Filed: 1921-12-23
Abstract: 195,155. Tipson, W. G. Dec. 23, 1921. Milling-machines.-In a machine, for milling slots or flats on screws &c. the work is carried in a bush i fitted in an adjustably-pivoted holder F mounted on a forked band-lever C which may be rocked about an axially-adjustable shaft A to engage the work with a milling-cutter P. The depth of the cut is limited by a stop E fixed on a collar D located between the forks of the lever and on withdrawal of the lever the work is ejected by an adjustable abutment M.
Patent GB-439724-A (GB)
Title: Improvements in and relating to electric hand lamps
IPC: F21L13/08
Filed: 1934-12-01
Abstract: 439,724. Driving magnetos. JANZEN, O., 20, Hillmannstrasse, Hermsdorf, Berlin. Dec. 1, 1934, No. 34613. Convention date, Dec. 15, 1933. [Class 35] [See also Group XI] Casings.-An electric hand lamp comprises a small two-pole dynamo operated by a hand pressure lever, such dynamo forming an independent unit and being resiliently mounted between the halves of a divided casing of moulded material. The laminated iron stator of the dynamo carries an induced winding 2 and bearing brackets 3 for a rotor 4 in the form of a circular disc comprising a bar magnet and heavy non-magnetic metal parts 5. The rotor is driven through gears 7, 8, one-way coupling 11 and driving wheel 12 by reciprocation of the hand lever 18 which carries a rack 21 meshing with the wheel 12. The lever 18 moves outwardly under the action of a spring 19 and may be locked in the retracted position by engagement of a pawl 23 and recess 22 ; unlocking is effected by pressure on the lever 18, when the pawl 23 is retracted by a spring 24. The halves 14 of the casing are secured together by a screw or screws, which or one of which passes through or forms the stationary lay shaft 9 on which the gear 8 and driving wheel 12 are loosely mounted. The bearing brackets 3 have an outer flexible lining 13 in the form of a rubber tube which is pressed, during assemblage, into recesses in the casing.
Patent GB-593730-A (GB)
Title: Improvements in or relating to calculating apparatus
IPC: H03K3/78
Filed: 1944-05-19
Abstract: 593,730. Calculating - machines; counting- apparatus. NATIONAL CASH REGISTER CO. May 19, 1944, No. 34667/46. Convention date, March 20, 1940. Divided out of 593,682. Drawings to Specification. [Class 106 (i)] A totalizer, or a counter, for accumulating electrical impulses comprises a number of denominational groups of electric-discharge devices, the devices in each group being arranged to operate one after the other in endless-chain sequence as the impulses arrive, the tube left operative in any denomination at the end of a calculation representing the corresponding denominational digit of the total, the said operative tubes controlling a totals indicator, means being provided for clearing the totalizer by extinguishing all tubes and at the same time disabling the indicator-moving means so that the total, although cleared from the totalizer, is retained on the indicator. The embodiment described is the same as that disclosed in Specification 593,682. Specification 593,729 also is referred to.
Patent GB-1183227-A (GB)
Title: Phase Locked Oscillator System
Inventor: SOMMERUD ROLF GUNNAR
IPC: H03L7/14
Filed: 1967-07-28
Abstract: 1,183,227. Automatic phase control systems. INTERNATIONAL STANDARD ELECTRIC CORP. 28 July. 1967 [19 Aug., 1966], No. 34811/67. Heading H3A. An automatic phase control system includes means for storing the phase error and producing from the stored signal a replica of the output of the phase discriminator for use if the supply of reference signal is interrupted. In Fig. 1 the phase discriminator 2 has an output comprising pulses of a width corresponding to the phase error, and these pass to unit 11 where they are used to gate clock pulses passing from the source 18 to the counter 10. The count stored in the counter 10 therefora corresponds to the current phase error, and is used to select, from waveforms produced by units 13-15 and 17, a waveform corresponding to the stored count and approximating to the output waveform of the discriminator 2. Normally AND gate 6 is open and gate 5 closed, but if the signal form the reference source 3 is interrupted a detector 9 reverses the condition of the two gates to allow the waveform from unit 13 to pass through the low pass filter 4 to control the oscillator 1. Each sampling cycle is preceded by a reset pulse from unit 19 which resets counter 10, and by a timing signal from source 12 which enables the gating unit 11.
Patent GB-507765-A (GB)
Title: Improvements in absorption refrigerating apparatus
IPC: F25B37/00
Filed: 1937-12-20
Abstract: 507,765. Refrigerating. BOSSINI, G. Dec. 20,1937, No. 35203. [Class 29] Absorption systeme.-In a continuous-cycle inert gas system having a combined absorber and evaporator vessel f with opposed evaporating and absorbing-surfaces g, h., preferably covered with capillary wire gauze j, m, a number of spaced upright partitions 1, 2, 3 are located between the surfaces to produce a vertically sinuous path for the inert gas, to retard the gas circulation and effect heat exchange between the gas mixtures. In addition, the evaporator and absorber surfaces are at different levels to ensure start of circulation of the gas mixtures by gravity as soon as the generator a of the system is heated. The inner and outer partitions 1, 3 are connected at the bottom by a partition 4, and the middle partition 2 extends to the top of the vessel f or, if annular, may be closed at the top by a dome. In the vessel shown a light inert gas such as hydrogen is used. If a heavy gas such as argon is employed the evaporator is at a lower level than the absorber. The absorber is cooled by water supplied by pipe n and discharged by pipe o to the condenser pooling-coil d,
Patent GB-1247153-A (GB)
Title: Improvements in electric dry cells
Inventor: PUN CHING-KOON
IPC: H01M50/417
Filed: 1968-07-24
Abstract: 1,247,153. Dry cell spacers. C. K. PUN, and C. C. POON. 11 July, 1969 [24 July, 1968], No. 35368/68. Heading H1B. In a dry cell most of the space between the rod and cup electrodes is occupied by a depolarizer dolly, the narrow gap between the outside of the dolly and the inside of the cup electrode being filled with paste electrolyte but including at least one elongated spacer member moulded from insulating plastics material and so shaped that it makes only point or line contact with the cup electrode. The elongated member may be of triangular cross-section, the apex line in contact with the cup electrode being scalloped so that it makes only point contact. The spacer, Fig. 2, may comprise a number of elongated members upstanding from the edge of a base element 6 which insulates the dolly and rod electrode from the floor of the cup electrode. The base element may have an upstanding knife-edge perimetric flange 7, so that when during the assembly of the cell the dolly is put in the integrated base-spacer unit the flange will cut off any protruding pieces of the dolly. Other forms of spacer are shown in Figs. 4-7. The cell may be sealed by a plug of insulating plastics material (19, Fig. 1, not shown) having a hole through which the rod electrode passes and being gripped at its edge by the inturned rim of the cup electrode, an enclosed annular space filled with sealing compound being provided between the plug and each of the electrodes.
Patent GB-741409-A (GB)
Title: Control system for fluid pressure operated aircraft brakes
Inventor: DEWAR DOUGLAS
IPC: B64C25/44
Filed: 1953-12-19
Abstract: 741,409. Fluid-pressure aircraft brakes. DUNLOP RUBBER CO., Ltd. Dec. 13, 1954 [Dec. 19, 1953], No. 35391/53. Class 103 (1). In a fluid-pressure brake system for aircraft of the kind in which the brakes are normally applied on wheel brake units 9 and 10 by pressure from a main source 1, reservoir 2, and reducing valve 3, by way of pedal-actuated valve devices 5 and 7 controlling conduits leading by way of inertia operated deceleration control units 11 to brake cylinders 21, and in which the brakes may also be applied from an emergency source 43, reservoir 44 and reducing valve 45 by way of valve devices 6 and 8 through conduits leading directly to brake cylinders 22, without having anti-skid control valve units therein, a shuttle valve 36 is arranged within each of the conduits leading to the energency pressure source with a spring-urged piston therein which is normally kept in a position to cut off the emergency supply by pressure from the connection 27 of cocking valves 23 which operate in the manner described in Specification 732,609. A non-return valve 43 is disposed between the passage 42, Fig. 3, and the exhaust valve port 40 to prevent pressure from the emergency source passing thereto. Specifications 631,880, 676,708, 683,490, and 687,358, [Group XXIX], also are referred to.
Patent GB-493124-A (GB)
Title: Improvements in or relating to holding means for sound-receiving apparatus
IPC: H04M1/19
Filed: 1936-12-28
Abstract: 493,124. Receivers; earpieces. HAUSDORF, E. Dec. 28, 1936, No. 35542. Void. Convention date, March 18, 1936. [Class 40 (iv)] A telephone receiver comprises a central portion b having a projection b<1> formed with passages f communicating with the space above a diaphragm clamped by a casing c which encloses the reproducing unit. A third portion a which is adapted to surround the outer ear, is screwed to the portion b. Some or all of the parts a, b, c may be made of an organic insulating-material, such as that known under the Registered Trade Mark "Bakelite," synthetic horn, aminoplast, trolitul, or of a pulverized material, such as cork meal, combined with a binding agent and pressed into shape. The casing portions may be coloured by a suitable dyeing agent applied to the organic material prior to or during the production of the parts. Alternatively, the parts a, b, c may be made of aluminium or aluminium alloy subjected to a pressing or die-casting operation.
Patent GB-1164234-A (GB)
Title: Process for the production of Phthalocyanines and Phthalocyanine Derivatives
IPC: C09B47/073
Filed: 1967-08-03
Abstract: 1,164,234. Phthalocyanine dyestuffs. ALPINE CHEMISCHE A.G. 3 Aug., 1967 [4 Aug., 1966], No. 35685/67. Heading C4P. Compounds of the formula where X represents two hydrogen atoms or a co-ordinative tetravalent metal atom and R 1 - R 8  are H, halogen, carboxylic acid, aliphatic carboxylic acid ester, benzoic ester, carboxylic acid amide which may be substituted by alkyl of 1-4 carbon atoms, nitrile, sulphonic acid, sulphonic acid halide, sulphonic acid amide which may be substituted by alkyl of 1-4 carbon atoms, dialkylamino, alkoxy, alkylmercapto, carboxymethyl, cyanomethyl, acetyl, isocyanate, isothiocyanate, nitro, saturated or unsaturated aliphatic group of 1-12 carbon atoms which may be branched and/or substituted by halogen, phenyl which may be substituted by halogen, nitro or carboxy, 3 - imino - isoindolenine - 1 - carbonylamino, cycloalkyl, quaternary ammonium, azo, s-triazinyl or stilbene are prepared by reacting together, optionally in the presence of a metal salt, compounds of the formulµ where R<SP>1</SP> 5 -R<SP>1</SP> 8  are as R 5 -R 8  or are carboxylic acid chloride or bromide and hal is halogen, and converting the primary complex obtained into a phthalocyanine compound. The metal which may be represented by X is preferably Cu, Ni or Co.
Patent GB-767830-A (GB)
Title: Improvements in throttle valves
IPC: F16K1/40
Filed: 1953-12-23
Abstract: 767,830. Regulating fluid flow; valves. DOWTY FUEL SYSTEMS, Ltd., and SIMMONS, H. C. Jan. 24,1955 [Dec. 23, 1953], No. 35786/53. Class 135. A throttling device for use in liquid fuel systems supplying aircraft gas turbine engines, comprises a plug 13 movable axially into and out of a throttle opening connecting inlet and outlet chambers 15, 16. The plug which is guided on a stem 17 of star-shaped cross-section is formed with a plurality of annular grooves 22 separated by sharp edges 23 to provide a throttling passage 18 between the overlap of the plug and the throttle opening. A flange 24 may be formed on the plug 13 to provide a positive closure of the throttle opening. The annular grooves and sharp edges may be provided on the surface of the throttle opening instead of or as well as on the plug member. Instead of being cylindrical the plug member or the throttle opening may be conical. Two or more devices may be fitted in parallel between a common supply passage and separate delivery passages.
Patent GB-1168066-A (GB)
Title: Improvements in or relating to Sockets for Electric Bulbs
Inventor: BONNET ROBERT
IPC: H01R33/22
Filed: 1968-07-26
Abstract: 1,168,066. Lampholders. R. BONNET. 26 July, 1968 [27 July, 1967], No. 35904/68. Heading H2E. The sleeve of a screw-cap lampholder consists of a coil of metal wire (e.g. copper or brass) the turns of which are spread apart axially when the screw-cap of the bulb is screwed in, so that (a) the bulb is resiliently gripped by the wire and (b) two terminals 16, 17 are caused to move and close the circuit. One end 10 of the wire sleeve is fixed, so that spreading of the sleeve causes the other bent end portion 19 to move and close the circuit, by making contact with an element 17 which is connected to a terminal 14 and by pressing an insulating head 11 against an element 16, which is connected to terminal 15, and causing it to bear against the centre contact 18.
Patent GB-935380-A (GB)
Title: Saturated fluorocarbon organo silicon compounds and derivatives thereof and methods o making them
IPC: C07F7/12
Filed: 1959-10-23
Abstract: Coating compositions which impart water-repellency to surfaces comprise solutions of hydrolysable fluorocarbon silanes of the formula <FORM:0935380/III/1> where Rf is a saturated radical containing 1 to 18 carbon atoms each of which forms part of a perfluoroalkyl or perfluorcyclohexyl group, R11 is a trivalent saturated hydrocarbon group of at least 3 carbon atoms, R is alkyl, alkoxy, phenyl, acyloxy, chloro or fluoro, at least one being chloro, fluoro, primary alkoxy or acetoxy, and X is Cl or Br.  They may be dissolved in hydrocarbons or chlorofluorohydrocarbons and applied by wiping, dipping or spraying.  For example, the compounds CF3(C6H9-Cl)SiCl3 and C4F9(C6H9-Cl)SiCl3 in an aerosol solvent are sprayed on to glass which is heated to 150 DEG C., or on to cold glass which is subsequently polished with a cloth moistened with isopropyl alcohol, and the glass is tested for water- and oil-repellency.ALSO:The invention comprises saturated fluorocarbon silanes of the formula <FORM:0935380/IV(a)/1> where Rf is a saturated radical containing 1 to 18 carbon atoms each of which forms part of a perfluoroalkyl or perfluorocyclohexyl group, R11 is a trivalent saturated hydrocarbon group having at least 3 carbon atoms, R is an alkyl or alkoxy group of up to 5 carbon atoms, or a phenyl, acyloxy, chloro or fluoro radical, at least one R being chloro, fluoro, primary alkoxy or acetoxy, and X is Cl or Br; and also comprises polysiloxanes obtained by their hydrolysis or other polymerization. The silanes are prepared by reacting a silane R1SiR3, where R1 is cyclohexenyl or terminally unsaturated alkenyl having at least 3 carbon atoms, with a fluorocarbon sulphonyl halide in the presence of a free radical generator, SO2 being liberated.  The free radicals may be generated by heat, gamma rays, ultra-violet light, organic peroxides and azo compounds.  Products containing silicon-bonded chlorine may be further reacted, e.g. with sodium acetate, to produce acetoxy silanes.  In the examples:  cyclohexenyl trichlorosilane is reacted (1) with perfluorooctyl sulphonyl chloride to give C8F17(C6H9-Cl)SiCl3, (2) with trifluoromethyl sulphonyl chloride to give CF3(C6H9-Cl)SiCl3, and (3) with perfluorobutyl sulphonyl chloride to give C4F9(C6H9-Cl)SiCl3; (4) CH2=CH(CH2)9SiCl3 is reacted with C8F17SO2Br to produce C8F17CH2CHBr(CH2)9SiCl3; (5) CH2=CH(CH2)9SiCl3 and C8F17SO2Cl produce C8F17CH2CHCl(CH2)9SiCl3; (6) CH2=CH(CH2)3Si(C6H5)(CH3)Cl and C4F9SO2Cl produce C4F9CH2CHCl(CH2)3Si(C6H5 (CH3)Cl.  The compounds are soluble in volatile liquids, e.g. hydrocarbons and chlorofluorohydrocarbons. Polysiloxanes are obtained by hydrolysis, alone or with other chlorosilanes, or by polymerization, e.g. by reaction with a metal oxide such as ZnO.  The polymers may be inert or heat-curable liquids, or solids.  Uses:  Coatings, lubricants, hydraulic fluids.
Patent GB-1180858-A (GB)
Title: Isostatic Hot Pressing of Refractory Bodies.
IPC: B22F3/15
Filed: 1968-07-29
Abstract: 1,180,858. Isostatic hot pressing. E.I. DU PONT DE NEMOURS & CO. 29 July, 1968 [31 July, 1967], No. 36153/68. Heading B5A. [Also in Division C7] Refractory bodies such as carbides, nitrides, silicides, borides, sulphides and oxides, mixtures of these and refractories bonded with e.g. Co, Ni, Fe, W, Mo, Ta, Ti and Cr are isostatically hot pressed by surrounding the bodies with a mixture consisting of 5-40% of one or more alkali metal or alkaline earth metal chlorides, fluorides and silicates and 60-95% of one or more of SiO 2 , Al 2 O 3 , ZrO 2 , MgO, CaO, spinels, mullite and anhydrous alumino silicates, heating to a temperature at which the mixture is plastic and applying sufficient pressure to increase the density of the refractory e.g. to at least 98% theoretical. The carbides may be WC, ZrC, HfC, SiC, NbC, TaC, TiC; the nitrides of Al, Ti, Zr, Ta, Nb, Hf, B, Si; the silicides of Mo, W, Ti, Nb, Cr; the borides of Ti, Cr, Zr, Ta, Mo, W, the sulphides of Ce, Mo, Cd, Zn, Ti, Mg, Zr; the oxides of Al, Zr, Mg, Zr, Th, Be, U and also mullite and spinels. Cemented carbides containing 3-30% of Fe, Co, Ni or Mo and 70-97% WC, TaC, NbC or TiC are especially suitable. The powders used should be less than 50 microns and the bodies are made by compacting the powder e.g. at 200-10,000 p.s.i. and 1000-2000 C. to form bodies of at least 60% theoretical density. Isostatic pressing may also be used to form the bodies which have surface pores less than 100 microns in diameter. The moulds for the final isostatic pressing may be solid such as graphite, W or Mo or deformable rubber. The preferred mixture for the isostatic pressing medium is calcium chloride and calcium oxide which is loaded into the mould as a powder, the refractory body is then charged into the mould covered with the powder mixture and the assembly is then heated to 1000-2000 C. under vacuum and pressed at 4000-6000 p.s.i.
Patent GB-449163-A (GB)
Title: Improvements in or relating to tuning systems for wireless receivers
IPC: H01F17/04
Filed: 1934-12-17
Abstract: 449,163. Inductances. POLYDOROFF, W. J., 420, Fullerton Parkway, Chicago, U.S.A., and DUMERT, V., 22, Fortis Green, Finchley, London. Dec. 17, 1934, No. 36207. [Class 37] [See also Group XL] A high-frequency coupling, designed for wavebandchanging, comprises two iron-cored inductances 1, 3 with close magnetic coupling, coil 1 being associated alone with the tuning condenser 9 on the lower frequency band while the second coil 3 is tuned by 9 on the higher band. In the former case a resistance 12 and condenser c are used as a coupling to the next stage 7, 12 being short-circuited by a switch 14 when the wave range switch 13 is in the right-hand position. Coil 1 is preferably designed to have a natural frequency lower than. the lowest frequency covered by coil 3 and condenser 9, but higher than the highest frequency of the band covered by coil 1 and condenser 9, in order to ensure uniform amplification over each frequency band. The coils may be arranged as shown in Fig. 2 with a magnetic yoke forming a common flux path for the two coils 1, 3. Coil 1 may be lattice-wound and 3 may be of low-loss construction.
Patent GB-865314-A (GB)
Title: Preparation of polyglycidyl aromatic polyamines and resinous compositions made therefrom
IPC: C08G59/28
Filed: 1957-11-21
Abstract: Heat curable resinous compositions comprise a hardening agent and a polyglycidyl aromatic polyamine obtained by reacting 1 mol of an aromatic primary polyamine with at least 2 mols of an epihalohydrin for each primary amine group, in the substantial absence of alkali and at a temperature not in excess of 80 DEG C., reacting the resulting polyamine epihalohydrin with at least a storchiometric amount of alkali and recovering the resulting polyglycidyl polyamine. Suitable hardeners are polyhydric phenols, primary and secondary polyamines, polyamides, and polymercaptans.  Suitable catalysts which may be present are alkalis, amines, and quaternary ammonium compounds.  The hardener may be used in proportions from 0.7 to 1,3 of the stoichiometric proportions.  The glycidyl derivatives may be mixed at temperatures from 25 DEG -100 DEG C. and the catalyst or hardener is added, either as such or in solution.  The composition is poured into a mould and cured at temperatures from 25 DEG -200 DEG C. The polyglycidyl polyamines may be used in combination with epoxy ethers of polyhydric phenols having a 1,2-epoxy equivalency greater than one, e.g. the glycidyll ethers of bisphenols. Examples describe casting compositions using the tetraglycidyl derivative of 4, 41-diamino-diphenyl methane with (2) the diglycidyl ether of bisphenol A, methanolic KOH and bisphenol A; (3) diglycidyl aniline, methanolic KOH, and bisphenol A; (4) methanolic KOH and bisphenol A and (5) 4, 41-diamine diphenyl methane.ALSO:Polygycidyl aromatic polyamines having at least an 80% epoxy content are made by reacting 1 mol of an aromatic primary polyamine with at least 2 mols of an epihalohydrin for each primary amine group present in the polyamine, in the substantial absence of alkali and at a temperature not in excess of 80 DEG C., reacting the resulting polyamine epihalohydrin with at least a stoichiometric amount of alkali and recovering the resulting polyglycidyl polyamine.  It is preferred to carry out the first step in the presence of water, using up to a 300% (molar) excess of epihalohydrin, the excess being distilled off under reduced pressure after completion of the first stage.  It is advantageous to use 5 to 25% by weight excess of alkali in the second stage, usually as a 50% by weight aqueous solution.  An organic solvent mixture, such as toluene-alcohol, may be present in the second step.  Examples of suitable polyamines are m- and p-phenylene diamine, benzidene and 4, 41 diamine diphenyl methane.  The polyglycyl polyamines may be used in the preparation of thermosetting casting compositions (see Group IV(a)).