baber/WOPTO huggingface dataset:
Patent GB-783669-A (GB)
Title: Improvements in or relating to indicator circuit arrangements employing transistors
IPC: G01K7/01
Filed: 1955-12-09
Abstract: 783,669. Automatic temperature control systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 9, 1955 [Dec. 13, 1954], No. 35402/55. Class 38 (4). [Also in Groups XXXVIII and XL (c)] A transistor 1 is connected in a feedback oscillator circuit with a limiting collector resistor 3 so that the amplitude increases with falling temperature (see Group XL (c)), the output from amplifier 6 rising to increase the heating from coil 10. The coil 10 contains the oscillator circuit and tends to maintain the temperature constant.
Patent GB-204615-A (GB)
Title: Improvements in foundation letters or the like for embroidery
IPC: D05C17/00
Filed: 1922-12-30
Abstract: 204,615. Parsons, A. Dec. 30, 1922. Embroidery.-Foundadation letters for embroidery work and the like, segmental in crosssection, are cut and formed by compressing sheets e of thick paper or the like between a press a and a die b of the requisite form.
Patent GB-845458-A (GB)
Title: Photographic method
IPC: G03C5/02
Filed: 1957-11-14
Abstract: 845,458. Photographic enlarging methods. LOGETRONICS Inc. Nov. 14, 1957 [March 13, 1957], No. 35505/57. Drawings to Specification. Classes 98(1) and 98(2) In a photographic printing method the intensity and contrast of the projected image are adjusted so that a standard exposure time may be given on a standard high contrast printing material by first adjusting the intensity of the projected image so that the brighest parts are of a predetermined intensity, and then superimposing on the projected image a uniform illumination whose intensity is varied so as to give a predetermined intensity in the darkest parts, and making the exposure with the combined illuminations. The intensities in the brightest and darkest parts may be measured by means of a photoelectric meter. The intensities of the projected image and uniform illumination may be adjusted by means of resistances in the lamp circuits, by diaphragms or by variable density filters. The uniform illumination may be supplied from an auxiliary lamp or from the main projection lamp. The predetermined maximum and minimum intensities are chosen as the end-prints of the exposure scale of the printing material.
Patent GB-503567-A (GB)
Title: Improvements relating to rotary pumps
IPC: F04C2/07
Filed: 1937-12-23
Abstract: 503,567. Rotary pumps. SAVERY PUMPS, Ltd., T., and RODAWAY, E. O. Dec. 23, 1937, No. 35598. [Class 110 (ii)] A pump of the geared-vane type has segmental impellers e approaching and receding to and from each other in an annular chamber d and is provided with means to vary the capacity of the pumping chambers. A driving rotor m on a shaft k has radial slots p acting as guides for pins q provided with rollers r. Alternatively, pins secured to the rotor extend into slots in the impellers. Suction and delivery passages g, h communicate with the pumping spaces between the impellers by way of segmental ports j, i, and passages l in the rotor m. The' axis of the latter is eccentric to the axis around which the impellers move. To vary the output of the pump, the relative eccentricity of the rotor and impellers is altered. A member s is suspended by a peg t and contains the working chamber d. A peg v in the member a engages a radial recess w in a disc x. Rotation of the spindle y rocks the member e about its pivot t. Alternatively, the rotor m and its shaft k may be mounted in an adjustable member. While the ports l are passing between the ports j, i, there is little or no change in the volume of the pumping spaces. Fig. 11 shows a rotor m between two 'annular pumping chambers d each containing impellers e. Passages l connect the chambers d in pairs, and also secure axial balance of pressures on the rotor. Specifications 352,268, 408,399, and 416,803 are referred to.
Patent GB-455410-A (GB)
Title: Improvements in or relating to the manufacture of compound glass
IPC: A61C13/24
Filed: 1935-12-23
Abstract: A mixed polymer or mixture of polymers of vinyl acetate and butyl acrylate is used as a plastic interlayer for laminated glass. Polymerized ethyl and methyl acrylates may also be incorporated. When using a mixture of polymers, one or more of the components may be only partly polymerized, the polymerization being completed after mixing.  Solvents, softeners, dyestuffs, fillers, turbidifying agents, e.g. waxes or stearic acid esters, and cellulose derivatives, e.g. cellulose triacetate or tripropionate may be added.  In examples, vinyl acetate and butyl acrylate with or without methyl acrylate are polymerized with the aid of benzoyl peroxide between glass plates; and vinyl acetate, butyl acrylate, and ethyl acrylate are polymerized in ethyl acetate with the aid of benzoyl peroxide, the resulting solution after thinning with further ethyl acetate being used to form films.
Patent GB-1150798-A (GB)
Title: Process for the Separation of Liquified Methane Mixtures
Inventor: DALEN JAN DANIEL VAN
IPC: F25J3/02
Filed: 1967-08-03
Abstract: 1,150,798. Cold separating of gas mixtures. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ, N.V. 3 Aug., 1967 [5 Aug., 1966], No. 35767/67. Heading F4P. Methane is separated from liquefied natural gas containing saturated C 2  to C 4  hydrocarbons by increasing the pressure of the liquid feed by a pump 4 from one atmosphere to a pressure below the critical pressure of methane but not less than 12 atmos. below said critical pressure, feeding through a line 6 to a column 7, withdrawing overhead methane at 8, condensing it in an indirect heat exchanger 5 cooled by increasing feed, returning a portion of the so-liquefied separated methane through a line 9 for use as washing liquid for column 7 and passing the remainder through a line 12 for use as hereinafter explained. Liquid bottoms from column 7 are fed through a line 17 to column 18 from which separated gaseous ethane is withdrawn through a line 20, condensed at 21 and forced by a pump 22 through a line 23 as washing liquid for column 18 and through a line 24 leading to an ethylene pyrolysis furnace 26. Product from furnace 26 having been compressed and dried at 30, 31 is fed to a methane separation column 33 supplied through a line 37 with a portion of the above mentioned liquid methane in line 12. Separated methane and hydrogen are discharged from column 33 through a line 38, whilst ethylene-rich bottoms are fed to a column 40 from which product ethylene gas is discharged through a line 42 whilst liquid bottoms are returned to the inlet of furnace 26. A portion of liquid methane in line 12 is pressurized at 15 and is passed through a heat exchanger 16<SP>1</SP> where it serves to cool condenser 21 and the feed to column 33.
Patent GB-473012-A (GB)
Title: Improvements in or relating to apparatus for the germination of seeds and the growthof seedlings
IPC: A01G31/06
Filed: 1936-12-31
Abstract: 473,012. Treatment of seeds and growing plants; germinating-appliances ; heating systems. LUND, H. H. B. Dec. 31, 1936, No. 35897. [Classes 6 (ii) and 58] [Also in Group XIII] A soil-less cultivation cabinet, such as that described in Specification 472,873, for the germination of seeds and the growth of seedlings is provided with heating-apparatus comprising a heat source external to the cabinet and a sinuous pipe system located within the cabinet near the bottom, heat being supplied from the heat source to water circulated through the pipe system, and the latter lying generally in a plane which slopes slightly upwardly from. the point of introduction of water into the system up to the point of withdrawal of the water from the system. The closed cabinet is fitted with trays 2 on the upper ones of which liquid fertilizer from a trough 3 is sprinkled periodically. The outflow pipe of an external boiler 9 connects with the sinuous pipe or pipes 11 arranged in an inclined plane in the cabinet, the highest point of these pipes being connected by an inclined pipe 12A to the inflow pipe 8 of the boiler. Water lost from the system is replaced by liquid from the trough 3 which is connected to the pipe 8 by a pipe 7. To prevent air-locks a small pipe 13 extends above the level of the liquid in the trough 3. The rectangular copper boiler 9, Fig. 4, has three passages to receive the chimneys of three duplex burners 16 secured in an oil tank 17, fume caps 15 and an automatic wick-feed mechanism being provided.
Patent GB-178888-A (GB)
Title: An improved castrating and tailing tool
IPC: A61D1/06
Filed: 1920-12-23
Abstract: 178,888. Luck, E. C. C. Dec. 23, 1920. Castrating-appliances; hooks; knives.-A castrating and lamb-tailing tool comprises a knife 1 and a hook member 10 fitted in separate sockets in a handle 7. The hook member is bent away laterally from the handle and the extremity thereof is bent up as at 15. A V-shaped nick 16 is provided in the inner bend of the hook.
Patent GB-453930-A (GB)
Title: Improvements relating to electrically heated furnaces for melting or heating paraffin
IPC: H05B1/02
Filed: 1934-12-17
Abstract: 453,930. Automatic control systems. HEIN, P., and HEIN, A., (trading as HEIN & CO.), 55, Schiffgraben, Hanover, Germany. Dec. 17, 1934, No. 36172. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 3, 1935]. [Class 38 (iv)] Temperature.- An electrically heated apparatus melting paraffin for therapeutic purposes comprises a relay adapted to maintain the normal temperature of, say 52‹C., and a second relay adapted to remain energized until the temperature has been raised sufficiently to drive off any water present in the paraffin, to 90‹ C. A contact thermometer (or thermometers), with contacts respectively in series with the coils of the two relays, energizes the relay d to open a heating circuit at the normal temperature, whereupon a second heating circuit continues to raise the temperature until the high level is reached and the relay c is energized to open the second circuit. The relay c is latched by a spring i until manually released, so that the relay d may alone regulate the temperature at the low level.
Patent GB-1434272-A (GB)
Title: Erasable system for the optical storage of data
IPC: G11C13/04
Filed: 1973-07-30
Abstract: 1434272 Electro-photographic deformation  images THOMSON CSF 30 July 1973 [1 Aug 1972] 36256/73 Heading G2H [Also in Division G4] -  An optical data storage system has a plurality of storage elements laid on a substrate, each element comprising an electrically conductive path, a film of photo-conductive material, and a film of a thermoplastic material, each conductive path being in series with an optically actuable switch; a means for electrically charging the photo-conductive and thermoplastic films; and a means for selectively projecting light beams on to individual storage elements.  A transparent, e.g. glass, substrate 1 carries a matrix array of heating elements 2 defining respective storage areas and connected between terminals 26, and 17. Each element 2 has an associated optically activated switch 21, e.g. a cadmium sulphate photo-resistor. Data is recorded by electrically charging the photo-conductive and thermoplastic films and directing a light beam 67 on to a desired storage area. A beam 68 is directed on to the corresponding photo-resistor 21 so that current flows through the desired heating element 2. The charge distribution on the photo-conductive layer is altered in accordance with the light beam 67 and the thermoplastic film distorts, due to the heating by element 2, in accordance with the charge distribution. The stored data is retained by allowing the thermoplastic film to cool and is erased, using beam 68, by reheating. Read-out is achieved using a read beam. In a modification beam 68 is omitted, beam 67 serving to actuate the photo-resistors. The data may be stored in the form of a hologram, in which case a further reference beam directed on to the same region of the store as beam 67 is provided.
Patent GB-1199666-A (GB)
Title: Apparatus for Handling Open Coils of Strip Metal
IPC: C21D9/663
Filed: 1968-07-30
Abstract: 1,199,666. Charging heat treatment furnaces. LEE WILSON ENG. CO. Inc. 30 July, 1968 [22 Sept., 1967], No. 36294/68. Heading F4B. A charging car A comprises a main frame structure 11, an intermediate turntable carriage 12 having wheeled support on cross tracks 13 carried by the main frame structure 11, and an upper coil transfer carriage 14 having wheeled support on transfer trucks 15 on the turntable carriage 12. The carriage 14 comprises a wheeled frame made up of a transverse portion 50 and six parallel transfer fingers 51-56, each of said fingers supporting a plurality of flanged wheels 57 such that when the carriage 14 is extended to deposit or pick up a coil the wheels 57 engage and are supported on the rails 103-108 in the bottom of an annealing furnace plenum chamber C. Each of the fingers 51-56 of the transfer carriage 14 also supports a plurality of cam rollers 58 rotatably mounted between the wheels 57, the tops of the rollers 58 engaging six coil lift bars 60-65 connected integrally together by a plate structure 67. In operation, the open coil B is located on a supply platform having transverse support bars 86, the transfer carriage 14 of the charging car A being operated to move the fingers 51-56 and lift bars 60-65 thereof to a position beneath the coil B. The lift bars are then operated to lift both coil and bars 86 above the surface of the platform, the coil being transferred to a central position on the turntable carriage 12 of the charging car A before being propelled to a position adjacent the door 98 of the furnace C. A drive motor 74 is then operated to move the fingers 51-56 and the bars 60-65 into the furnace plenum chamber 97 with the wheels 57 rolling on to the rails 103-108. Once the coil is in position over a grid system 96 and the lateral support bars 86 are positioned above channel members 119, a motor 68 is operated to move the transfer fingers 51-56 forward relative to the coil lift  bars 60-65 so that the cam faces 66 will ride downward on the cam rollers 58 and lower the lift bars 60-65 vertically in position. The transfer carriage 14 is then operated to withdraw the transfer fingers 51-56 and the coil lift bars 60-65 from the furnace plenum chamber 97.
Patent GB-1294638-A (GB)
Title: Balances with electromagnetic compensation
Inventor: STROBEL FELIX
IPC: G01G7/04
Filed: 1971-08-02
Abstract: 1294638 Weighing, electrically METTLER INSTRUMENTE A G 2 Aug 1971 [1 March 1971] 36296/71 Heading G1N In a force balance for weighing a load 15 in which a current passed through a restoring coil 12 to maintain a load receiving member 1 in a neutral position is measured, the current in the restoring coil 12 interacts with a magnetic field which is automatically adjusted to compensate for interfering variables by coils 11, 11<SP>1</SP>. As shown, the load receiving member 1 and a reference member 2 of constant mass are concentrically supported by springs 4, 4<SP>1</SP>; 5, 5<SP>1</SP> for guided vertical deflection relative to a round pot magnet system 8 including permanent magnets 9, 9<SP>1</SP> and core 10. Deflection of the load receiving member 1 from a neutral position is detected by capacitors 7, 7<SP>1</SP> energised from a high frequency oscillator 17 and a D o  C o  restoring current, measured at 20, is fed to the restoring coil 12. Deflection of the reference member from its neutral position (due, e.g., to variation in g or nonverticality of the apparatus) is sensed by capacitors 6, 6<SP>1</SP> energized from a high frequency oscillator 23 and a field adjusting current is fed to the coils 11, 11<SP>1</SP>. Coil 13 on the reference member 2 is fed with a stabilized D.C. from a source 21 which also provides a reference for the meter 20. D.C. voltages from sources 26, 27 are superimposed on the high frequency current fed to the sensing capacitors 6, 6<SP>1</SP>, 7, 7<SP>1</SP> to compensate for variations in spring rate. Thermal expansion of members 1 and 2 produces cancelling variations in the sensing capacitors.
Patent GB-897273-A (GB)
Title: An electric safety coupling and switch device
IPC: H01R13/707
Filed: 1960-10-24
Abstract: 897,273. Two-part couplings combined with switches. BLACKBURN ENGINES Ltd., and CLARKSON, E. Oct. 24, 1960, No. 36423/60. Class 38 (1). A rotary switch adapted to receive a plug connector 5 comprises a tubular body 1 carrying a sleeve 2 extended to carry the switch mechanism 3 and a socket connector 4, and an internal rotary sleeve 7 moved by the switchoperating member 9 to control the movement of balls 6 trapped between sleeves 2 and 7 such that they are moved inwardly through apertures in sleeve 2 to prevent the entry of the plug when the switch is closed or to prevent the removal thereof by engaging behind the plug (Fig. 1, not shown). When the switch is open, the balls 6 enter recesses 10 in sleeve 7 and so permit the plug 5 to be entered into or removed from the switch.
Patent GB-1134204-A (GB)
Title: Core drilling apparatus
IPC: E21B25/02
Filed: 1966-08-15
Abstract: 1,134,204. Boring earth &c. E. J. LONGYEAR CO. 15 Aug., 1966 [27 Aug., 1965], No. 36461/66. Heading E1F. In core-taking apparatus having a core lifter case 76 and a core lifter 85, the lifter bears during drilling against a hardened steel split ring 78 housed in groove 77.
Patent GB-978636-A (GB)
Title: Improvements relating to hand trucks
IPC: B62B5/02
Filed: 1962-09-26
Abstract: 978,636. Hand trucks. H. C. SLINGSBY Ltd., and G. SLINGSBY. Dec. 18, 1963 [Sept. 26, 1962], No. 36508/62. Heading B7B. A hand truck has its longitudinals 1 extended to form loop handles 2 provided with wheels 3 and the fixed toe-plate 6 has pivotally secured on its underside a frame 5 which is moved from under the toe-plate to the position shown so that it forms a convenient lifting handle 15 for the lower of two men lifting the truck up a flight of stairs. The wheels 3 support the longitudinals in the horizontal position when the handles are moved near the ground.
Patent GB-1106397-A (GB)
Title: Process for producing alpha crystal phase 6,13-dihydroquinacridone
IPC: C09B48/00
Filed: 1966-08-17
Abstract: a -Crystal phase 6,13-dihydroquinacridone is produced by heating to 200 DEG  C. or above a dialkyl 2,5-dianilino-3,6-dihydroterephthalate under a high pressure in the substantial absence of oxygen and in the presence of an inert aromatic hydrocarbon boiling in the range 80 DEG to 210 DEG  C. and separating the resultant a -crystal phase 6,13-dihydroquinacridone from the hydrocarbon. The heating preferably takes place at 200 DEG  to 300 DEG  C. under 8 to 55 kg./cm.2 pressure.  Suitable aromatic hydrocarbons are benzene, toluene, xylene, hemimellitine, pseudocumene, mesitylene, isodurene, ethylbenzene and propylbenzene.
Patent GB-1112110-A (GB)
Title: A liquid-cooled nuclear reactor
IPC: G21C15/16
Filed: 1965-08-27
Abstract: 1,112,110. Reactors.. LICENTIA PATENTVERWALTUNGS-G.m.b.H. 27 Aug., 1965 [1 Sept., 1964], No. 36866/65. Heading G6C. A boiling-water reactor having a core 3 within a pressure vessel 1 and a cover in two parts 10, 11 hinged at 12 and provided with perforations 13, is characterized by a plurality of devices 5 for separating vapour and liquid. The devices 5 each comprise a cylindrical vessel into which the mixture of vapour and liquid enters at the top, the liquid leaving at the bottom through holes 7 and entering the coolant compartment 6 and the vapour being led off through tubes 8 and entering a vapour compartment 9. A proportion of the mixture which does not enter the devices but which passes through the perforations 13 is separated by gravity above the cover 10, 11. These perforations may be formed by adjustable apertures (Fig. 11, not shown). A number of vapour and liquid separating devices may be mounted one above the other and disposed around the core (Fig. 13, not shown), these devices also forming a thermo-shield for the pressure vessel.
Patent GB-1034386-A (GB)
Title: Improvements in or relating to the bonding of composite metal bodies to each other or to other metal bodies
IPC: B22F7/06
Filed: 1964-09-09
Abstract: A sintered body comprising 40% titanium carbide and 60% steel is formed by mixed 1000 gms of titanium carbide 5-7 microns in size with 1500 gms carbonyl irons powder of 20 microns average size and containing 0.8% carbon and milling for 40 hours with 0.1% of paraffin wax using hexane as the vehicle.  The mix is subsequently vacuum dried compressed into a billet and sintered in vacuum at 1435 DEG C. for 30 minutes.  After cooling the body is heated to 900 DEG C. for 2 hours and cooled at 15 DEG C. hour to 100 DEG C. to produce an annealed structure containing spheroidite.
Patent GB-836781-A (GB)
Title: Improvements in and relating to fluid pressure relay valves
Inventor: SPENCER DENNIS ARTHUR
IPC: B62D1/08
Filed: 1955-04-18
Abstract: 836,781. Fluid-pressure servomotor-control systems. DE LA RUE CO. Ltd. April 18, 1956 [April 18, 1955], No. 37003/59. Divided out of 836,780. Class 135. A relay valve for gas-burner control systems comprises a valve 13 in an upper chamber 2 open to the inlet, a central valve seat partition 3 and a two-part spindle 7, 7<SP>1</SP> attached to a weighted diaphragm 8. The diaphragm E divides the centre chamber 5 from the lower chamber 10 to which is connected a weep conduit 14 containing a series of primary controls; e.g. a clock control, air or water temperature thermostat and/or electromagnetic flame safety controls. The diaphragm 8 has an orifice 9 establishing communication between the central and lower chambers 5 and 10.
Patent GB-788418-A (GB)
Title: Improvements in or relating to methods and machines for working the internal surfaceof hollow cylinders
IPC: B21C37/15
Filed: 1955-12-28
Abstract: 788,418. Internal metalworking formers. SCHWEIZERISCHE INDUSTRIE-GES. Dec. 28, 1955 [Dec. 27, 1954], No. 37155/55. Class 83 (4). A method of cold grooving the internal surface of hollow cylinders, for example for the production of rifling in barrels of firearms, comprises inserting a profiled mandrel 2 into the bore of the cylinder 1 and moving it through the bore, local plastic deformation, corresponding to the profile of the mandrel, being produced in the bore by alternately expanding and relieving the mandrel in quick succession. The mandrel 2 has a slotted resilient end which is expanded by a percussion tool 3 and is pulled through the bore in steps between the percussions. Alternatively the cylinder may be moved in steps over a stationary mandrel. In one embodiment, Fig. 4, for producing helical rifling in a cylinder mounted in a carriage 11, the internal mandrel 20 is expanded by'a percussion mechanism 12 operated by compressed air and the mandrel is twisted to produce the helical movement by a mechanism 15 acting through a spindle 19 and adjustment device 14. The carriage 11 and twisting mechanism 15 are driven through a lead screw 17 driven through a gear box 13 from the motor A. In certain applications of the invention, the mandrel and cylinder may be moved continuously relatively to each other instead of in steps.
Patent GB-776140-A (GB)
Title: Lysergic acid derivatives
Filed: 1955-12-29
Abstract: The invention comprises lysergic (and dihydrolysergic) acid derivatives of the general formula <FORM:0776140/IV(b)/1> (wherein R1 represents an alkoxy or mono- or di-alkylamino group, R2 represents -COCH3 or -COCH2.COCH3, and <FORM:0776140/IV(b)/2> represents -CH = C< in the lysergic acid derivatives or -CH2-CH< in the dihydrolysergic acid derivatives), and the preparation thereof by reacting the corresponding compounds unsubstituted on the indole nitrogen atom (i.e. R2 = H) with ketene in the vapour state.  The reaction is advantaneously effected with the starting material dissolved in an organic solvent inert to ketene (e.g. benzene, toluene or acetone or mixtures thereof), preferably in a non-polar solvent with the addition of a catalytic amount of a tertiary base (e.g. trimethylamine).  In examples, the following starting materials are employed: (1) D-lysergic acid methyl ester; (2) and (3) dihydrolysergic acid methyl ester; (4) D-lysergic acid diethylamide; (5) lysergic acid monoethylamide.  The products are useful as pharmaceuticals or intermediates therefor.