baber/WOPTO huggingface dataset:
Patent GB-1223313-A (GB)
Title: Hinged box
IPC: B65D43/16
Filed: 1968-02-19
Abstract: 1,223,313. Boxes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 19 Feb., 1968 [22 Feb., 1967], No. 7987/68. Heading B8P. [Also in Division E2] A metal box comprising upper and lower portions 2 and 3 is made by punching out peripheral portions of the two adjacent edges to which the hinge leaves 4 and 5 are to be attached so as to form tongues 1 which are used to fix the hinge to the box by passing them through the openings 8, 10 the hinge and binding them back on themselves (see Fig. 2, not shown).
Patent GB-857278-A (GB)
Title: Apparatus for disconnecting and connecting a hand servo control
IPC: B23Q35/126
Filed: 1959-03-09
Abstract: 857,278. Machine tool control systems. CINCINNATI MILLING MACHINE CO. March 9, 1959 [April 16, 1958], No. 8007/59. Class 40 (1). In a system where the slide of a machine tool can be controlled via a servo-system from a hand wheel or from an alternative signal source, jump of the slide on connecting back to the hand wheel is prevented by arranging synchronizing means to keep the transmitter associated with the hand wheel in synchronism with the receiver which drives the servo-system. In the system of Fig. 2, the slide 30 is driven by the servo-system shown in accordance with signals fed to the phase-sensitive rectifier 39. These signals may come from a hand wheel 31, a pattern-following tracer stylus 50 or directly from the power source 34 when rapid traverse is required. The circuits are switched by relays operated by push-button switches (Fig. 3, not shown). For hand wheel control 3CR is energized and movement of the rotor of the transmitting differential selsyn TDX generates a signal in the rotor of the receiver CT which is fed to the servo-system at 39. The resultant motion of the slide drives the receiver rotor via 44 to cancel the signal and also operates a further transmitting selsyn TX which energizes a second receiving selsyn TR2 to which is attached a dial. A third receiving selsyn TR1 has no mechanical connection to its rotor, but has its stator windings connected to the stator windings of TDX. For tracer control relay 1CR is energized and 3CR falls out. Signals from the differential transformer 53 are now fed directly into the servo system and the connection thereto from CT is broken. Motion of the slide still drives the rotors of CT and TX and the latter (instead of the former) is now coupled up to the rotor of TDX and consequently drives the rotor of TR1 also. Any inadvertent movement of the hand wheel will have no effect on the slide but will shift the rotors of TDX and TR1 equally without disturbing their relative positions. When tracing is finished relay 1CR is de-energized, but 3CR is not energized immediately, so that the slide and the rotors have time to come to rest before the hand wheel becomes operative. When this happens the rotor of TR1 provides a stationary reference for the rotor of TDX when CT is again connected to the slide. Power traverse of the slide is effected by closing relay 4CR or 5CR (depending on the desired direction) to connect the A.C. supply from transformer 61 to the input of the servo system at 39. Relay 3CR is then de-energized to disconnect CT from the servo-system. The integrating circuit 56, 57 equalizes the potential across the leads within a predetermined time after the cessation of the input signal and thus bring the slide to rest; this is disconnected by 1CR to ensure accurate tracing.
Patent GB-692302-A (GB)
Title: Method of and apparatus for separating oxidizable material from liquid by oxygenation
IPC: C02F1/52
Filed: 1949-03-24
Abstract: <PICT:0692302/III/1> In a method for converting bases or salts dissolved in liquids into their higher oxidized and relatively insoluble forms and effecting separation which comprises introducing a stream of the liquid into one end of a retention tank, settling the oxidized substances in the tank and drawing off the remaining liquid from an end of the tank remote from the incoming stream, the oxygen is entrained in the stream of liquid as it flows towards the tank, and the oxygen-carrying mass of liquid is passed through a floc blanket suspended in the tank with the top of the floc blanket intermediate the ends of the tank at which the liquid is introduced and withdrawn.  As shown in the Figure settled sewage flowing along a conduit 10 entrains oxygen supplied by a diffuser 14 located at the flared entrance to a further conduit 12 in a mixing chamber 11.  It then passes to a retention tank 20 where excess oxygen rises in a bell 34 and most of the sewage passes out laterally through rows of holes in radial pipes 42 leading from the bottom of the bell 34.  The remainder of the sewage rises in the bell 34, to the upper part of which compressed air is supplied from a pipe 39 through a float-operated valve 40.  The diffuser 14 is fed from the bell 34 by a pipe 38.  Sludge-bearing liquid passes from the tank 20 through rows of holes 21 and 25 into peripheral chambers 23 and 27 respectively, and clear liquid through holes 28 into chamber 29. These chambers communicate by adjustable orifices 33 with pump chambers 30 from which a pump 32 delivers mixed partially-treated sewage into the chamber 11.  The amount of return feed is adjusted so that the biological oxygen demand of the diluted sewage flowing down the conduit 12 is equal to the oxygen saturation value at normal temperature and pressure. Stirring mechanism 45 and a sludge draw-off 61 are provided. Purified effluent flows over a saw-tooth weir into a peripheral channel 55 whence it leaves by pipes (not shown).  In an example ferrous bicarbonate is oxidized to insoluble ferric hydroxide which forms the sludge blanket.
Patent GB-800416-A (GB)
Title: Improvements in or relating to mercaptomethyl dialkyl dithiophosphates and insecticidal compositions
Inventor: FANCHER LLEWELLYN W
IPC: C07F9/165
Filed: 1956-03-15
Abstract: The invention comprises compounds of the formula <FORM:0800416/IV (b)/1> wherein R1 and R2 are identical alkyl radicals having from 1 to 5 carbon atoms and a process for the preparation thereof which comprises heating in the presence of an organic solvent a compound of the formula <FORM:0800416/IV (b)/2> with alkali metal salts of the formula <FORM:0800416/IV (b)/3> wherein R1 and R2 are as defined above and X is an alkali metal.  The products of the invention are employed in insecticidal compositions (see Group VI).  In examples: p-chlorophenylmethylmercapto di-isopropyl- (I), diethyl- (II), and dimethyl- (III) dithiophosphates are obtained by reacting p-chlorophenylchloromethyl sulphide with potassium diisopropyl-dithiophosphate, sodium diethyl dithiophosphate and sodium dimethyl dithiophosphate respectively.  Reference has been directed by the Comptroller to Specification 772,213.ALSO:An insecticide comprises as active ingredient a compound of the formula <FORM:0800416/VI/1> wherein R1 and R2 are identical alkyl radicals having from 1 to 5 carbon atoms (see Group IV (b)).  Insecticides are prepared by diluting acetone solutions of p-chlorophenyl mercaptomethyl di-isopropyl dithiophosphate and p-chlorophenyl mercaptomethyl di-ethyl dithiophosphate with water containing Vatsol, a sulphonate-type wetting-agent and Methocel, a methyl cellulose. For comparison similar insecticides are prepared using p-nitrophenyldiethyl thionophosphate, o,o-diethyl-o-2-(ethyl mercapto) ethyl thiophosphate and the o,o-dimethyl phosphate of diethyl mercapto succinate as active ingredients.  Reference has been directed by the Comptroller to Specification 772,213.
Patent GB-1467055-A (GB)
Title: Circuit arrangements for protecting and electric power supply  line
IPC: H02H3/07
Filed: 1974-02-22
Abstract: 1467055 Protective arrangement INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 22 Feb 1974 [23 Feb 1973] 8257/74 Heading H2K A protection circuit preventing overload of a power supply line comprises a thyristor D911 in the line controlled by pulses from a transistor TR905 to conduct, there being a sensor feeding information representing load conditions via line C to a silicon controlled switch TR907 which when overload conditions prevail blocks transistor TR905 to stop the pulses and turn off thyristor D911 to switch off the line, wherein a capacitor C923 in a resistor-capacitor timing network R933, C923 charges and switches transistor TR905 to conduct again after a predetermined time which if the overload has ended causes thyristor D911 to conduct again, but if the overload persists is prevented by thyristor TR907 from causing the thyristor D911 to conduct, the cycle repeating during prolonged overload for a set number of times until a capacitor C926 of a longer time constant timing circuit R924, R939, C926 has become charged to a value above the Zener voltage of a Zener diode causing transistor TR908 to saturate and permanently block transistor TR906 which causes thyristor D911 to remain off until manual intervention resets the circuit.
Patent GB-364939-A (GB)
Title: Apparatus for performing electrometric volumetric analyses
IPC: G01N27/22
Filed: 1931-03-18
Abstract: <PICT:0364939/III/1> In the apparatus described in the parent Specification for performing electrometrical volumetric analysis by determinations of the conductivity or dielectric constant, high-frequency alternating current is employed and is generated by the same valve that is employed for effecting the measurement. Apparatus for conductometrical volumetric analysis is shown. High-frequency current is generated by means of a valve R of steep slope and medium voltage amplification factor, in the anode circuit of which is connected an oscillatory circuit comprising an inductance S2 and a variable condenser K.  The coil S2 is inductively coupled with the grid of the valve R by means of a pair of coils S1, S3 one end of the coils S1, S2, S3 being connected to the positive pole of the heating battery in order to provide positive grid bias.  The ends of the coils S1, S3, are connected to the electrodes of a titration vessel T, the voltage across their ends, which is determined by the resistance in the vessel T, being measured by applying it between the grid and filament of the valve R and measuring the change in the anode current by means of an ammeter MA as described in the parent Specification.  The coils S1, S2, S3, may be wound in this order and in direct contact on a cylinder 7 cm. long and 10 cm. in diameter, the wire being double cotton covered copper wire 0,5 mm. in diameter. The coils are of four, twelve, and four layers respectively, each layer consisting of about 90 turns.  For measuring the dielectric constant, the titration vessel T is omitted and the variable condenser K is replaced by a condenser having plates between which the substance under investigation is introduced.  For gases or vapours a 200 cm. air-block condenser hermetically enclosed in a glass vessel may be employed, the gaseous mixture being passed through intake and outlet pipes.  For liquids a dielectric trough of 30 to 50 cm. capacity when empty may be employed.
Patent GB-376790-A (GB)
Title: Improvements in or relating to bottles or like containers
IPC: B65D1/02
Filed: 1931-04-09
Abstract: 376,790. Bottles &c. ALUMINIUM, Ltd., 22, Canada Life Building, Toronto, Canada.-(Assignees of Niver, R. W. ; 612, West Church Street, Elmira, New York, and Sharp, J. E. ; 1219, Woodmont Avenue, New Kensington, Pennsylvania, both in U.S.A.) April 9, 1931, No. 8342/32. Convention date, April 18, 1930. Divided on 376,778. [Class 125 (iii).] A bottle &c. 1 is provided with a series of spaced projections 3 which merge at their upper ends into a peripheral bead 2 at the mouth of the bottle &c. and taper downwardly to merge into the neck, whereby a series of spaced detents are formed on the neck, into which the skirt of a cap 10 is pressed into sealing engagement. The projections may be symmetrical or asymmetrical about a vertical central plane. The cap is removed by rotation, the detents formed in the skirt between the projections being thus obliterated. The cap may be used again.
Patent GB-566520-A (GB)
Title: Improvements in or relating to the production of coloured photographic images by colour-development
IPC: G03C7/36
Filed: 1943-05-26
Abstract: A colour coupler for incorporation in a silver salt emulsion or in a developing solution containing an aromatic amino developing agent has the coupling function occurring twice and the two active methylene groups constituting the coupling functions linked by means of sulphur.  Examples specified are thio-bis-acetoacetanilide, thio-bis-acetoacetic ethyl ester, thio-bis(1-phenyl-3-methyl-5-pyrazolone) and thio-bis-(1-p-nitrophenyl-3-methyl-5-pyrazolone).  The couplers may be used as such or as the inorganic acid salts, if any.  In example (1) an ethylene glycol-methyl alcohol solution of thio-bis-(1-phenyl-3-methyl-5-pyrazolone) is added to a developing solution comprising N : N - diethyl - p - phenylenediamine hydro - chloride, sodium sulphite, sodium carbonate and water.  In example (2), an ethylene glycolmethyl alcohol solution of thio-bis-acetoacetanilide is added to the same developing solution. The coupler may be incorporated in a separate layer. Thio-bis-pyrazolones are prepared by condensing thio-bis-acetoacetic ester with a phenylhydrazine or by condensing a pyrazolone with sulphur dichloride or thionyl chloride.  Thio - bis - (1 - phenyl - 3 - methyl - 5 - pyrazo - lone) is prepared by adding thionyl chloride to a chloroform solution of 1-phenyl-3-methyl-5-pyrazolone. Thio-bis-acetoacetanilides are p  prepared by condensing thio-bis-acetoacetic ester with an aniline derivative or by condensing an acetoacetanilide with sulphur dichloride or thionyl chloride.  Thio-bis-acetoacetanilide is prepared by adding sulphur dichloride to a benzene solution of acetoacetanilide.  Specification 489,161 is referred to.
Patent GB-656574-A (GB)
Title: Improvements in or relating to molds & method of making same
IPC: B29C33/02
Filed: 1948-03-23
Abstract: 656,574. Pressure moulds. FIRESTONE TIRE & RUBBER CO. March 23, 1948, No. 8526. Convention date, July 9, 1947. [Class 87 (ii)] A pressure mould comprises opposed retractable mould members adapted to be heated, one of said mould members, 26, having a shaped moulding surface of rigid heat-resisting material and the other member 31 having a complementary surface of a cured thermosetting or vulcanizable composition. The pressure mould is used to produce so-called " product-moulds " 38 from sheets of natural or artificial fibre impregnated with thermo-setting resin. These product-moulds are used in the curing of sponge-rubber articles using high-frequency electric currents. In the manufacture of the pressure mould the rigid mould member 26 is first cast from, e.g., a copper-aluminium alloy. The mould member 26 is then mounted in a platen 33 and a sheet of curable material mounted in an opposed platen 32. The mould is closed and the sheet moulded to the desired complementary shape to form the member 31.
Patent GB-585092-A (GB)
Title: Improvements in or relating to bearing structures
IPC: F16C33/10
Filed: 1944-05-05
Abstract: 585,092. Bearings. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 5. 1944, No. 8591. Convention date, Feb. 9, 1943. [Class 12 (i)] [Also in Group XXVI] The invention relates to bearings, particularly for high-speed aircraft propulsion plant, which are subject to radial and thrust loads that may change rapidly in magnitude and direction. According to the invention a bearing comprises a stationary conical bearing surface and a rotary conical bearing member coacting therewith, such rotary member being formed with oil grooves on its surface extending radially outward but terminating short of the outer edge, and the outer stationary bearing member being formed with recesses adapted to register periodically with the outer ends of such grooves during the rotation thereby periodically to allow much easier passage of oil with a wash-out of any sludge, to the drainage pipe of the oil circulating system. As shown, a shaft 28 which connects an axial-flow air compressor unit, and a turbine unit of an aircraft jet propulsion plant of the combustion type is formed with an integral collar 37 having opposed conical bearing surfaces which co-operate with conical bearing surfaces 42 on fixed spaced rings 41 mounted in a bearing housing 39 which is supported by struts 33 extending from a bulkhead 32 in the frame or fuselage 12 of the propulsion power plant. The strut 33 is hollow to serve for the supply of oil to the bearing. The oil passes to an annular space 50 formed around the shaft 28 by the inner edges of the fixed bearing rings 41 and passes thence to radial grooves 45 on the bearing surfaces of the collar 37 which grooves act as centrifugal pumps to set up oil flow for the wedge-shaped oil films provided by the tapering reliefs 56 extending from the grooves in the trailirig direction as shown more clearly in the circumferential sectional view, Fig. 6. The grooves 45 terminate radially short of the outer edge of the fixed bearing rings 41 but the latter at one point are cut away at 51 so that the pressure of the oil film is periodically able to force out oil and impurities to an annular space 52 outside the periphery of the collar 37 and so to a discharge through another hollow strut. The ends of the bearing housing 39 have sealing plates 44 formed with helical grooves 44a in the bore for the shaft to act as viscosity pumps to return the oil. The stationary bearing rings are located in their housing by shims 43.
Patent GB-565895-A (GB)
Title: Improvements in or relating to variable inductance devices
IPC: H01F21/06
Filed: 1943-05-29
Abstract: 565,895. Inductances. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. May 29, 1943, No. 8608. Convention date, May 29, 1942. [Class 38 (ii)] To increase the tuning range at high frequencies of an inductance coil or inter-valve coupling transformer of the movable magnetic core type, the winding or windings are subdivided into a number of parallel-connected coils A, B, C, either coaxially disposed end-to-end, Fig. 1, or co-extensive but connected together only at the ends, Fig. 2. Specifications 429,826, [Group XXXVI], and 463,724 are referred to.
Patent GB-566393-A (GB)
Title: Supporting clip for wires
IPC: F16L3/123
Filed: 1943-05-31
Abstract: 566,393. Clip brackets. ADEL PRECISION PRODUCTS CORPORATION. May 31, 1943, No. 8675. Convention date, July 6, 1942. [Class 44] [Also in Group XIV] A supporting clip for electric wires &c. W comprises a slightly resilient metal or plastic loop having an attachment lug 7 at the top and a struckup tongue 9 at the bottom to engage an opening 10 in the supporting surface S, the fixed part of the loop having a curved offset part 5 engaged by a similarly shaped part 4 on the bendable front 2e of the loop. The loop is retained closed by a curved piece 12 slidable over the offset parts 4, 5 and adapted to be raised to the dotted position shown to free the device. The upright walls of the loop are preferably stiffened by indentations 16 and the loop is lined with rubber or like material 14 which may be extended at 15, 15a over the edges of the loop. The loop may be ring shaped for a round bundle of wires and the sliding piece 12 may be secured in the closed position by a wire tie.
Patent GB-201199-A (GB)
Title: Improvements in or relating to indicating devices or apparatus for use with pneumatic tyres
IPC: B60C23/04
Filed: 1922-03-25
Abstract: 201,199. Dunlop Rubber Co., Ltd., Paull, W. H., and Fellowes, F. March 25, 1922. Puncture or deflation, indicating.-Apparatus adapted to produce a signal on the tyre pressure falling below a predetermined limit comprises a casing secured to the valve body A, Fig. 1, and formed of two parts B, B<1> holding between them a perforated plate C above which is mounted a, rotary vane wheel C<1> carried nn a spindle C<2>. A coil spring D bears on the under surface of the plate C and on a shoulder of a pin D' which bears on the valve A<1>. When the tyre pressure fall the spring extends and causes the pin D<1> to open the valve A<1> the escaping air causing the wheel C' to revolve and produce an audible signal. A thin disc of waxed paper may take the place of the plate C, a coil spring acting on one side of the disc against the air pressure on the other side. On the tyre pressure falling the disc is broken and air escapes through a whistle. In the modification shown in Fig. 4 a coil spring is fitted round the valve and the valve body carries a casing G formed with a projection G<1>. On a fall of tyre pressure the spring D extends and causes the valve to be drawn partially through the rim, the projection G<1> engaging the jaws G<4> of an electric switch carried on the fixed part of the vehicle and operating a bell, lamp or buzzer. In a modification the spring releases an arm when the tyre pressure falls. a torsional spring swinging the arm to contact with a switch on the fixed part of the vehicle.
Patent GB-609871-A (GB)
Title: Improvements in or relating to a process for drying alcohols and ketones
IPC: C07B61/00
Filed: 1946-03-20
Abstract: Aqueous alcohols and ketones which are only partially miscible with water and which form azeotropes therewith, e.g. butanol, amyl alcohol, dimethyl ethyl carbinol, and methylethylketone, are dehydrated by adding an alkyl-substituted aromatic hydrocarbon, miscible with the alcohol or ketone and having a boiling point at least 40 DEG  C. above it but which will not form an azeotrope therewith, in an amount at least sufficient to cause separation of the mixture into two phases, separating the phases and subjecting the less aqueous phase to fractional distillation to produce a fraction consisting of the water-azeotrope of the alcohol or ketone, a higher boiling fraction consisting of the anhydrous alcohol or ketone, and a residue comprising the hydrocarbon. Suitable hydrocarbons are the xylenes, ethylbenzene, trimethylbenzenes, propyl and isopropybenzene, and diethylbenzenes.  The aqueous phase may be subjected to distillation separately, and the water azeotrope of the alcohol or ketone thus obtained may be added to a fresh batch of starting material.  The process may be carried out batchwise or in a continuous manner.  In the latter case, three stills are used: one for distilling out the water azeotrope from the "oily" phase, another for separating anhydrous alcohol or ketone from hydrocarbon, and the third for the distillation of the aqueous phase.  Specification 560,169 is referred to.
Patent GB-622597-A (GB)
Title: Improvements relating to apparatus for making infusions of coffee and the like, applicable to other purposes
IPC: A47J31/057
Filed: 1947-03-31
Abstract: 622,597. Coffee infusers. MINIMAX, Ltd., YOUNG, A.. and YOUNG, E. F. March 31, 1947, No. 8722. [Class 129] '[Also in Group XXVIII] A coffee-maker comprises three superposed containers, mounted so as to be separable, the top and bottom containers communicating through a hollow handle formed in two parts and connected with an air-tight joint so as to be readily disconnectible. Water boiled in the bottom container 1, which may be of metal or plastic, rises by way of a pipe 4 to the upper container 3 in which the ground coffee is placed. A hole 24 prevents the passage of water into the container 3 before it is at boiling temperature. The infusion passes through perforations 22, which may be supplemented or superseded by a strainer, filter or filter paper, to the intermediate container 2, which may be of glass or plastic. The pipe 4, which is of metal or heatresistant glass, is housed in a moulded handle 5. To permit separation of the three containers, the pipe and handle are each made in two parts which are connected together by a rotatable sleeve 25. The latter is secured to the lower part of the handle by pins 26 which engage an annular groove in a reduced portion 5a. On rotation of the sleeve 25, internally projecting lugs 27 engage over tongues 28 formed on the upper part of' the handle. An electric cut-out switches off the supply to an electric heater 8 when the level of water in the container 1 has dropped to a predetermined level; a light 11, which may be moulded in the handle 5, may be included in the circuit.