baber/WOPTO huggingface dataset:
Patent GB-346319-A (GB)
Title: Improvements in and relating to supply circuits for radio receivers and the like
IPC: H04B1/16
Filed: 1929-10-04
Abstract: 346,319. Valve circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Cornell, J. I. ; 401, Michigan Avenue, Schenectady, New York, U.S.A.) Oct. 4, 1929, No. 30162. Convention date, Oct. 4, 1928. Void [Published under Sect. 91 of the Acts]. [Class 40 (v).] Anode and grid bias voltages for the valves of a receiver are supplied from tappings on a resistance, across the supply terminals, the anode and grid bias connections for one of the valves being spaced across a part of the resistance while the corresponding connections for another valve are spaced across a separate part of the resistance. Valve 14 is a single high-frequency amplifier which may have a varying load, the anode, cathode return and grid bias connections being made at 29, 30, 31 on resistor 12 ; the amplification may be varied by moving the grid bias tap. The detector valve 15 has its anode, cathode return and grid bias connections at 7, 38, 29 on the resistor, thus utilizing the voltage drop across a separate portion from that of valve 14, the tapping 29 being common to the grid of valve 15 and anode of valve 14. Valve 13 represents one of a number of output stages, its anode and cathode leads being connected directly across the supply terminals 7, 8 ; grid bias is obtained from the resistor 20, the filament being heated by alternating current. The anode and cathode tapping points of all the valves are respectively shunted by condensers 40, 41. The arrangement ensures constant relation between grid bias and anode potential for the detector 15 irrespective of varying load taken by valve 14.
Patent GB-1039489-A (GB)
Title: Production of polyhalogenated copper phthalocyanines having high colour strength and soft grain
Inventor: KRANZ JOACHIM
IPC: C09B67/12
Filed: 1965-07-16
Abstract: Polyhalogenated phthalocyanines containing 10-16 halogen atoms are conditioned by heating them at 60-220 DEG  C. with 1-20 times their weight of an o-nitrophenol.  In a preformed process a moist press-cake of the polyhalogenated phthalocyanin is heated with 2-4 times its weight of nitrophenol at 100-150 DEG  C. in a closed vessel; after the treatment the nitrophenol may be converted to its water-soluble sodium salt and the pigment filtered off.  The specified nitrophenols are o-nitrophenol and mixtures thereof with p-nitrophenol, as well as o-nitro-p-cresol and dinitrophenols. The halogen atoms may be Cl and/or Br.  Examples are given.
Patent GB-679489-A (GB)
Title: Improvements in and relating to pneumatic tube conveyor systems
Inventor: TARLING ARTHUR JOHN
IPC: B65G51/28
Filed: 1949-11-25
Abstract: 679,489. Pneumatic despatch apparatus. LAMSON ENGINEERING CO., Ltd. Sept. 27, 1950. [Nov. 25, 1949] No. 30297/49. Class 78 (i). A despatch terminal comprises a linear extension 2 of the transmission tube 1 in which is pivoted at 10 a plate 4, this plate being linked to the valve 3 in such a manner that the insertion of a carrier displaces it to open the valve 3 and to hold it open while the carrier is pushed into the tube 1. The extension is cut away to allow the valve to swing outside it.
Patent GB-684647-A (GB)
Title: Manufacture of thiosemicarbazide and substitution derivatives thereof
Filed: 1950-12-12
Abstract: Thiosemicarbazides R.NH.CS.NH.NH2, in which R is hydrogen or an alkyl, aryl, aralkyl or heterocyclic radical, are prepared by reacting hydrazine or a water-soluble salt thereof in an alkaline aqueous medium with a dithiocarbamate R.NH.CS.SX, where X is a cation.  Examples are given of the preparation of (1) thiosemicarbazide from ammonium dithiocarbamate and hydrazine sulphate in the presence of aqueous caustic soda; (2) 4-phenylthiosemicarbazide from ammonium phenyldithiocarbamate and hydrazine sulphate; (3) 4-(31-methoxyphenyl)-thiosemicarbazide from ammonium 3-methoxyphenyl-dithiocarbamate and hydrazine sulphate; (4) 4-(41-carboxyphenyl)-thiosemicarbazide from ammonium 4-benzoic acid dithiocarbamate and hydrazine sulphate; (5) 2,4 - bis - (thiosemicarbazide - 4) - toluene from toluene - 2,4 - bis - (dithiocarbamic acid ammonium salt); (6) 4-(41-sulphonamido)-benzyl-thiosemicarbazide from potassium 4-sulphonamidobenzyl-dithiocarbamate and hydrazine sulphate; and (7) 4-(pyridyl-2)-thiosemicarbazide from pyridyl-2-dithiocarbamate and hydrazine sulphate.  The dithiocarbamates may be prepared by reacting a primary amine R.NH2 with carbon disulphide and a base XOH, where R and X have the same meaning as given above.
Patent GB-749482-A (GB)
Title: Process for the production of tricyclodecane-dicarboxylic acid
IPC: C07C51/295
Filed: 1953-11-03
Abstract: Tricyclodecane dicarboxylic acid is produced by a process comprising fusing tricyclodecanedimethylol with a caustic alkali at a temperature of at least 250 DEG  C.  The preferred alkali is caustic potash.  The salt formed by the fusing is dissolved in water neutralized with a mineral acid, the potassium salt formed is filtered off and the remaining solution is extracted with a water insoluble solvent such as benzene, a higher ketone, an ester or a chlorinated hydrocarbon.  The pure dicarboxylic acid is obtained from the extracted solution by treating with a surface-active agent or by treatment with a small amount of an oxygen-yielding bleaching agent. Mixtures of tricyclodecane-methylol with solvents such as are obtained in the production of tricyclodecane-dimethylol may be used as starting materials.
Patent GB-900057-A (GB)
Title: Improved control apparatus for jet lift aircraft
Inventor: SNOWDON CHARLES
IPC: G05D1/06
Filed: 1959-09-07
Abstract: 900,057. Automatic control systems for aircraft. SHORT BROS. & HARLAND Ltd. Aug. 18, 1960 [Sept. 7, 1959], No. 30462/59. Class 38 (4). [Also in Group XXVI] The thrust generated by one or more jet engines, disposed in an aircraft so as to provide a vertically downward directed jet efflux during take-off and landing, is automatically controlled in the transitional phase between flight in which the weight of the aircraft is supported solely by aerodynamic lift and hovering in which the weight is supported by jet efflux, so as to maintain a constant flight path. As shown, a gyroscope 11 maintains a fixed attitude in relation to the earth's frame of reference and carries an accelerometer 12, measuring vertical acceleration of the aircraft, and an accelerometer 13, measuring horizontal acceleration. The outputs of the accelerometers are fed to a resolving unit 14 consisting of two sine-cosine potentiometers mounted on a flight-path angle selector control-shaft 15. The output signal of the resolving unit 14 is a measure of the acceleration of the aircraft in a direction normal to the selected flight path and is fed to amplitude limiters 16, 17. The amplitude limited signals are fed, via servo amplifiers 19, 20 to a servomotor 21. An output shaft 22 of the servomotor drives a tachometer 23 generating a signal, proportional to the rate of change of angular position of the shaft, which is fed back to the inputs of amplifiers 19, 20 to oppose the amplitude limited signals from the limiters 16, 17 to control the speed of rotation of the servomotor. The output shaft 22, through a duplicated over-speed switch 24 disconnecting the power supplies when the limiters 16, 17 fail, a gear-box clutch unit 25 and a shear pin device 27 positions a throttle control lever 18 connected to vary the fuel control unit 28 of a jet lift engine 29. A signal from a transducer, not shown, coupled to the lever 18 is fed to the inputs of the limiters 16, 17. The clutch unit 25 can be slipped by the pilot for manual control, and the shear pin can be broken by the pilot in the event of failure of the servo motor arrangement.
Patent GB-1012407-A (GB)
Title: Camp beds
IPC: A47C17/70
Filed: 1963-08-01
Abstract: 1,012,407. Folding bedstands. J. J. HAWLEY (SPECIALITY WORKS) Ltd., and H. SOFTLEY. June 24, 1964 [Aug. 1, 1963], No. 30528/63. Heading A4J. A collapsible camp bed comprises a flexible top 10 formed along its longitudinal edges with hems 12 and an underframe upon which the top is tensioned, the underframe including high tensile steel rod side members 11 located in hems 12 and bowshaped leg members 13, the side members 11 each comprising three rod sections 15, 16, 18 detachably interconnected by coupling sleeves 14 and the leg members 13 each comprising two separate bent lengths of rod 18, 19 detachably interconnected at their inner ends by a coupling sleeve 20. The leg members 13 are detachably connected to the sections 15, 16 by T-shaped connectors 17. Ground engaging feet 21 are fitted to the leg members 13.
Patent GB-1074225-A (GB)
Title: Process for preparin fibre and film forming polyesters
IPC: C08G63/83
Filed: 1965-07-19
Abstract: In the manufacture of fibre- and film-forming polyesters by polycondensing a glycol ester of an aromatic dicarboxylic acid, there is used as a polycondensation catalyst an organo-silicon compound of formula <FORM:1074225/C3/1> wherein M is alkali metal or an alkaline earth metal, n is 1 when M is an alkali metal or 2 when M is an alkaline earth metal, or a partial condensate of such an organo-silicon compound in which less than 1.5 molecules of water have been eliminated from each trihydroxysilyl group.  Specified aromatic dicarboxylic acids are terephthalic, isophthalic, 4:41 - diphenyldicarboxylic, naphthalenedicarboxylic and 2:5-dimethylterephthalic acids and 1:2 - di - (p-carboxyphenoxyethane) and these may be use in admixture with hexahydroterephthalic, adipic, sebacic or 5 - sulphoisophthalic acids. Specified glycols are ethylene glycol, 1:2- and 1:3 - propanediol, 1:2 - and 1:3 - butanediol, 1:2 - and 1:3 - cyclobutanediol and 1:4 - di-(hydroxymethyl) cyclohexane. The glycol esters may be made by an ester-interchange reaction, e.g. in the presence of calcium acetate. Examples describe the polycondensation of the ethylene glycol ester of terephthalic acid (alone or in admixture with the ethylene glycol esters of isophthalic acid or the potassium salt of 5-sulphoisophthalic acid) in the presence of the organo-silicon catalyst and possibly titanium dioxide and triphenylphosphite.
Patent GB-1458195-A (GB)
Title: Articles of furniture and the construction thereof
IPC: A47B88/00
Filed: 1973-06-27
Abstract: 1458195 Drawers MACKENZIE KING PLASTICS Ltd 13 May 1974 [27 June 1973]  30715/73 Heading A4B A drawer construction, which may be as disclosed in Specification 1358047, includes resilient ribs 20, 21 formed in the side walls of the drawer in a channel 16 which receives an edge of the drawer bottom 17 to restrain vibration of the bottom 17. Alternatively a resilient member may be provided on the edge of the bottom rather than as ribs in the channel.
Patent GB-365079-A (GB)
Title: Ignition systems for gas burners and the like
IPC: F24C3/10
Filed: 1930-10-14
Abstract: 365,079. Igniting burners; valves. SPENCER THERMOSTAT CO., 238, Main Street, Cambridge; Massachusetts, U.S.A. Oct. 14, 1930, No. 30764. Convention date, Oct. 14, 1929. [Class 135.] In an igniting. system for a series of gas burners, ignited by a single pilot burner, a thermally actuated cut-off valve is fitted to shut off the entire gas supply in the event of the pilot flame being extinguished. The burners 1 .. 4 are supplied from a manifold 36 connected by a pipe 35 to the cut-off valve casing 37 which is connected to the gas supply by a pipe 48 and to the oven burner. The pilot flame casing 9 has a baffle 16 and has branches 17 .. 21 fitted with radiating pipes 22 .. 26, the free open ends of which rest in or on lugs adjacent gas orifices in the main burners. The pilot burner 45 is mounted on a casing 44 independent of the casing 9 and projects into an aperture 12 surrounded by air holes, 11 in the base 10 of the said casing 9. The cut-off valve 41 is connected by a spindle 42 with a bi-metallic disc mounted in the casing 44. The disc is initially heated and the pilot burner ignited by means of an auxiliary burner supplied through a hand-operated automatically closing cock and then maintained hot by the heat from the pilot flame.
Patent GB-929836-A (GB)
Title: Making a semi-conductor device by a process that includes soldering
IPC: B23K35/30
Filed: 1959-09-10
Abstract: Solders have the following compositions:-  .Silver ............65% .Copper..........27% .Nickel............7.5% .Silicon..........0.5% .and.... .Silver ............65% .Copper..........27% .Nickel............4% .Manganese..........4%
Patent GB-1384444-A (GB)
Title: Microbially-stable potato products and process
IPC: A23L19/12
Filed: 1972-07-03
Abstract: 1384444 Potato products AMERICAN POTATO CO 3 July 1972 [2 July 1971] 31109/ 72 Heading A2D A gelatinized non-synthetic foodstuff having a water activity of at least 0.85 contains no less than 200 p.p.m. of uniformly dispersed sulphur dioxide to provide prolonged preservation at ambient temperature. The foodstuff is preferably potato pieces suitably in a parfried form. The sulphur dioxide may be utilised in gaseous or liquid, e.g. sulphurous acid form. The foodstuff may be prepared by (a) preparing peeled potato strips of a desired size, (b) parfrying the strips to gelatinize the starch therein and kill the microbial flora present, (c) draining the parfried strips, (d) packaging the strips in containers impermeable to oxygen and microbial contamination, (e) flushing the containers with an inert gas so as to remove oxygen (f) sealing the containers, (g) injecting sulphur dioxide into the containers and (h) resealing the injected containers.
Patent GB-1158312-A (GB)
Title: Improvements in or relating to Aircraft Controls.
Inventor: STAITE HAROLD JAMES
IPC: B64C9/18
Filed: 1965-07-21
Abstract: 1,158,312. Boundary layer control; valves. HAWKER SIDDELEY AVIATION Ltd. 21 July, 1966 [21 July, 1965], No. 31125/65. Headings F2R and F2V. The lift of an aircraft wing 12 is varied by varying the flow of air blown over a flap 11 or aileron without adjusting the angle of the flap or aileron. The air blown from a slit in a pipe 13 is supplied from a pipe 14 through a valve 15 which may comprise a conical plunger 18 movable axially in a conical passage 20, the plunger being maintained in its normal position by a spring 23, and varied therefrom by either varying the pressure in passage 24 or by moving plug 25. The blown air may be bled from the aircraft engines. Blowing different flows of air over the flaps of the two wings can be used to correct roll. It is stated that the lift can be varied more rapidly by varying the air flow than by moving the flaps making the system suitable for coupling to auto-pilot apparatus.
Patent GB-787532-A (GB)
Title: A method for producing a filled package and device for carrying out this method
IPC: B65B51/04
Filed: 1955-11-01
Abstract: 787,532. Packaging-machines. PERMAC AKT.-GES. Nov. 1, 1955 [Jan. 11, 1955], No. 31156/55. Class 94(1). [Also in Groups XV and XXIV] A device for packing fruit or the like in a tubular net &c. comprises means to seal the tube by clamps in two spaced positions above a batch of contents and means to cut the tube between the clamps. The operation of the device is partially manual. Fruit &c. is fed into the net through preferably elliptical section filling tube 5, the net being drawn forward from a supply stored round the tube, Fig. 3 (not shown). The net is manually constricted above the goods to form a cord which is introduced into the jaw 100 of the clamping mechanism 4. The mechanism 4 receives two tapes 20 which are fed in by rollers 46, 49 operated by a pawl and ratchet 44, 45. Lengths of tape are cut off by a part 18 on a horizontally reciprocating slide 15, the forward end of the slide having recesses 17 which cooperate with formers 52 as the slide advances to bend the tape lengths to C shape, Fig. 9. The formers 52 are carried on a pivot 54 and are rigidly connected to a lever 59 on which is pivoted a spring-loaded member 61. The member 61 normally abuts a stop 62 and retains the formers 52 stationary during clamp formation. Continued forward movement of the slide 15, however, trips the stop 62 by means of a lug 25<SP>1</SP> on its operating lever 25, and permits a member 21 on the slide to pivot the formers clear of its path. The clamps are finally bent round the compressed net against stationary members 66, Fig. 10, and a knife 68 passes between the clamps to sever the net. During forward movement of the slide, a pin 28, biased upwardly by a spring 30 enters a hole 34 in a horizontally slideable plate 33 carrying the pawl 44. As the slide 15 withdraws it pulls the plate 33 with it against the influence of a spring 38, until, towards the end of its travel, a cam 32 pulls the pin 28 out of the hole 34. The spring 38 then returns the plate 33 and causes the pawl 44 to turn the ratchet 45. A pneumatic damper 37 controls the return movement. The machine parts are operated by a single combined cam and crank (not shown) rotated through a clutch (see Group XXIV) engaged by depressing a lever 94. The clutch automatically disengages after each clamping operation.
Patent GB-1312672-A (GB)
Title: Microcircuit package and method of making same
IPC: H01L23/498
Filed: 1970-06-26
Abstract: 1312672 Integrated circuit assemblies US ELECTRONIC SERVICES CORP 26 June 1970 [27 June 1969] 31214/70 Heading H1R A microcircuit assembly (Fig. 6) comprises a plastics or ceramics body 46 with leads 12 Ni-Fe-Co alloy embedded therein and a surface 48 provided with a recess 52 to house a microcircuit device and raised paths 54 which are nickel plated on their upper surface to provide electrical connection between the leads and the device. In a modification a second layer of leads is provided and electrical connection is established by applying to the bottom of the grooves 56 a free flowing adhesive such as silver-filled epoxy resin. The plastics body is manufactured using the mould (Fig. 1) after which it is coated with resist such as polyvinyl chloride and then ground to remove the resist from the upper surface of the raised paths and then metallized by electroless plating or vacuum deposition. The resist is then stripped using a solvent such as methyl chloride. In the case of a ceramics body, the leads are embedded in a laminated body and grooves and raised portions are provided by compaction. raised paths and then metallized by electroless plating or vacuum deposition. The resist is then stripped using a solvent such as methyl chloride. In the case of a ceramics body, the leads are embedded in a laminated body and grooves and raised portions are provided by compaction.
Patent GB-763459-A (GB)
Title: Improvements in or relating to the separation of the potassium content from potassium ores
IPC: C01D7/00
Filed: 1953-11-11
Abstract: Glucomannan is used as the auxiliary agent in the process of the parent Specification.  In addition to test results using the aliphatic amine collectors referred to in the parent Specification, results of tests using both mannogalactan and glucomannan as auxliary agents together with sulphated fatty esters and sodium lauryl sulphate as collectors are given.
Patent GB-1131387-A (GB)
Title: Electrical lighting apparatus
IPC: F21S13/00
Filed: 1967-07-07
Abstract: 1,131,387. Electric lighting fittings. M. E. R. CAMUS. 7 July, 1967 [8 July, 1966], No. 31399/67. Heading F4R. An enclosure for electric lamps consists of a cube 10 some of the surfaces of which are mounted for rotation about lines joining the midpoints of two opposite and parallel edges. For example, the face 16 is rotatable about a horizontal axis joining the midpoints of the edges of the faces 12 and 13, while the opposite face is rotatable about a vertical axis joining the midpoints of the edges of the top and bottom faces of the cube. All the surfaces may be translucent. The bottom may be open and provided with a system of parallel louvres 21. The light source 22 is located at the centre of the cube. In a modification, the cube has the top and two parallel faces fixed, the remaining faces being pivoted about horizontal axes at the midpoints of the edges of the fixed faces.
Patent GB-460803-A (GB)
Title: Improvements in or relating to packing cases or the like
IPC: B65D5/44
Filed: 1935-11-13
Abstract: 460,803. Packing-cases. THOMPSON & NORRIS MANUFACTURING CO., Ltd., and PRIDEAUX, G. E. Nov. 13, 1935, No. 31445. [Class 18] A packing case of corrugated fibreboard &c. is provided with rigid strengthening frames 8 which fit closely within the ends of the case and serve to keep the contents away from the ends. The frames are of wood with corrugated fibreboard &c. panels 9 on one or both faces. The closing flaps 6 can be fastened down by nailing them to the frames.
Patent GB-523294-A (GB)
Title: Manufacture of new azo compounds
IPC: C09B29/08
Filed: 1938-12-31
Abstract: 523,294. Azo dyes. ELLIS, G. H., OLPIN, H. C., and WRIGHT, J. Dec. 31, 1938, Nos. 31558/39, (divided out of 523,287) and 31660/39, (divided out of 529,454). [Class 2 (iii)] Aminoazo compounds are obtained by coupling diazotized 2-, 3- or 4- nitraniline with an unsulphonated primary amine of the benzene series coupling in p-position to the primary amino group and containing an acidylamino group in m-position to the primary amino group and an alkyloxy group in p-position to the acidylamino group. Specified coupling components are the 2-amino-4-acetylaminoderivatives of anisole, phenetole and #-hydroxyethoxybenzene, 2-amino-4-benzoylaminoanisole and 2-amino-4-acetylmethylaminoanisole. The nitroaminoazo products and the diaminoazo products obtainable therefrom by reduction of the nitro group are suitable for the preparation of dis- and tris-azo dyes by the processes described in Specifications 523,287 and 529,454. An example relates to the preparation of the dyestuff, 4-nitraniline# 2-amino-4-acetylaminoanisole. Specifications 214,516 and 245,790, [both in Class 2 (iii)], also are referred to. 2- Amino-4-acetylaminophenetole is obtained by reducing the nitro group in the product of nitration of 4-acetylaminophenetole. 2- Amino-4-benzoylaminoanisole is obtained by reducing the nitro group in the product of benzoylation of 2-nitro-4-aminanisole. 2- Amino-4-acetylmethylaminoanisole is obtained by reducing the corresponding 2-nitrocompound.
Patent GB-267240-A (GB)
Title: Improvements in a method of treating and an electric furnace for the treatment of carbonaceous material
IPC: C13B20/12
Filed: 1925-12-14
Abstract: 267,240. Naugle, J. J. Dec. 14, 1925. Electrode, furnaces.- An electric furnace in which precarbonized material is subjected to the action of air or steam while being heated by the passage of an electric current through it, comprises a casing 10, Fig. 1, having trunnions 11, 12 which act as inlet and outlet respectively. Rotation of the casing is effected by means of an annular gear 17 which co-operates with a spur gear 18. Within the casing are removable stirring members 20, Fig. 4, having hollow faces 25, which act as supports for stud electrodes 20<1>. Current is supplied through conductor rings 30, 31 in such a manner that adjacent electrodes are oppositely charged. Material fed into a hopper 40 is led into a central chamber 41, Fig. 5, of a spiral feed device 42 located at the inlet end of the casing 10, and enters the latter through a discharge opening 43. The treated carbon leaves the casing by means of a similar spiral device at the outlet end. To increase the conductivity of the material being treated, conducting carbon e.g. graphite may be mixed therewith. Specification 267,241 is referred to.