baber/WOPTO huggingface dataset:
Patent GB-963262-A (GB)
Title: Improvements in or relating to television receiver line oscillators having automatic frequency control means
IPC: H04N5/12
Filed: 1960-10-28
Abstract: 963,262. Automatic frequency control. BLAUPUNKT-WERKE G.m.b.H. Oct. 28, 1960 [Oct. 30, 1959], No. 37037/60. Heading H3A. Relates to a television receiver in which the line oscillator 2 is synchronized by pulses from an A.F.C. stage 3 controlled through an R.C. filter network 7 by the output of a phase detector 9 which compares the phase of the line sync. pulses 17 from the sync. separator 15 with the output of the line oscillator or the line output stage 1. According to the invention, the time constant of the R.C. network 7 is short so that the A.F.C. stage has 8 range just sufficient to cover all likely frequency deviations. The negative direct voltage arising from grid rectification in oscillator 2 is also fed back over a resistor 23 to block the A.F.C. stage 3, for the major portion of each line scanning cycle, until the fractional alternating voltage of oscillator 2 fed back over capacity 22 has a positive value sufficient to cause unblocking. The capacitor 22 and resistor 5 shift the phase of this A.C. feedback and in other embodiments different phase shifters are used. The blocking of the A.F.C. stage prevents the introduction of interference impulses therethrough to the line oscillator for the said major part of each linescanning cycle.
Patent GB-1358800-A (GB)
Title: Purification of contaminated liquids
IPC: B01D9/04
Filed: 1972-08-09
Abstract: 1358800 Freeze concentrating solutions AVCO CORP 9 Aug 1972 [23 Aug 1971] 37184/72 Heading BIG [Also in Division C1] A purification process for contaminated liquids comprises mixing said liquids with a volatile liquid refrigerant, this mixing resulting in the vaporization of the refrigerant and the production of a slurry of crystals of pure liquid in a concentrate of the contaminated liquid. The slurry is passed to a wash zone where the concentrate is removed at a position intermediate between the input and output of this zone, leaving a porous mass of crystals which is moved to the output end of said zone. The crystals are extracted from the wash zone and melted by indirect heat exchange with refrigerant vapour that was earlier produced when contaminated liquid was mixed with volatile refrigerant. A portion of the liquid product resulting from the melting is passed as a wash liquid into the wash zone against the flow of the porous mass, and then out of the zone at the intermediate position. The rate of flow of the porous mass through the wash zone is controlled by regulating the relative values of the pressures at the input, intermediate position and output of the wash zone. The process may be carried out in the apparatus shown in the figure wherein contaminated liquid, e.g. saline water is pumped along line 14 and cooled in heat exchanger 16, and then passed to freezer 20 wherein sprayed streams of saline water and refrigerant are intermixed. The resultant slurry is passed to wash column 34 and in this column concentrated brine is removed at intermediate port 38, and a porous bed of ice crystals forms and moves upwardly through the column. Ice crystals are removed by scraper means 36 and passed to heat exchanger 46 where they are melted by indirect heat exchange with refrigerant which has exited freezer 20 by line 28 and which has been compressed by primary compressor 50. A portion of water produced in heat exchanger 46 is returned via line 47 to the wash column. This water flows against the flow of the porous bed and thus washes the bed. This water is removed at port 38. Pressures P 1 , P 2  and P 3  in the column are controlled by pump 30, and pressure control means 84 and 86 respectively. Thus the rate of movement of the porous bed is controlled. Product water and brine concentrate are passed via lines 78 and 80 through heat exchanger 16. Remaining refrigerant in the concentrate is removed in stripper 66 and after compression and condensation, recycled for further use in the freezer.
Patent GB-939935-A (GB)
Title: Improvements in or relating to powdered milk products
IPC: A23C1/14
Filed: 1961-10-17
Abstract: 939, 935. Milk powders. KOOPMANS MEELFABRIEKEN N.V. Oct. 17, 1961 [Oct. 17, 1960], No. 37263/61. Class 49. A milk powder poor in calcium and phosphorus, suitable on reconstitution for adding to tea or coffee without casein precipitation, is made by precipitating calcium phosphocaseinate from skimmed milk at pH above 6 with the aid of a proteolytic enzyme, e.g. rennin, ficin, bromelin, separating off the whey, suspending the calcium phosphocaseinate in water and adding acid to produce pH 4.5 and thereby dissolve the calcium and phosphorus, separating the calcium- and phosphorus-free casein and washing it, dispersing this casein in the whey, adjusting the pH to 6-7.5 and forming a homogeneous solution, and drying this solution. Fat, e.g. cream or butter, may be incorporated in the homogeneous solution before the drying. An example is of adding rennet to stirred, pasteurized skimmed milk at 38‹ C., cooling while stirring, filtering off or centrifuging off the casein, concentrating the liquid to one-third of its volume, suspending the rennet casein in water, adding hydrochloric acid to produce pH 4.5, stirring, filtering off the acid-treated casein, washing it and dispersing it in the concentrated liquid, adjusting the pH to 6.8 by adding sodium hydroxide, and spray drying the dispersion.
Patent GB-1214798-A (GB)
Title: Inflatable canopy for outdoor areas
Inventor: ADAM HERBERT ALEXANDER
IPC: A63C19/12
Filed: 1969-07-24
Abstract: 1,214,798. Inflatable tents. H. A: ADAM. 24 July, 1969, No. 37369/69. Heading E1A. [Also in Division A6] An inflatable structure e.g. a tent, comprises Fig. 2, two tubular inflatable side walls 66 and a canopy 44 comprising inflatable tubes 72 spaced apart by channels 74 and connected for inflation to tubes 66. The longitudinal edges of canopy 44 are connected, Fig. 8, to spring loaded turnbuckles 70 attached to roller members 50 which run in tracks 54. The cover is stored in trench 12, on rails 46, Fig. 5, and is gripped, when rams 30 lower top 18, between rollers 24 and 38. To advance the cover over the ground the lugs 56 and 60, Fig. 6, of motor driven chains 58 and 62, situated at either end of the trench, successively engage roller members 50, joined by individual cables 52, and propel them along tracks 54. The advancing cover is inflated, to the nip of rolls 24 and 38, via air tube 68, and becomes rigid, whereby the force applied by chain drive 62 is transmitted to the forward edge of the canopy, roller members 50 continuing to travel along tracks 54. The forward edge of the canopy is enclosed to fixed anchor points. Tubes 72 have vents under the canopy to allow air, possibly heated, to circulate to dry the ground beneath the cover.
Patent GB-1198796-A (GB)
Title: An improved method of Defence against Human Attack
Inventor: PALMER HAROLD C
IPC: F42B12/54
Filed: 1966-08-19
Abstract: 1,198,796. Method of defence against human attack. H. C. PALMER. 19 Aug., 1966, No. 37392/66. Heading F3A. In a method of dealing with a human attacker, a chemical irritating substance such as methyl salicylate, acetic acid, hypertonic salt solution, or vinegar, is injected sub-cutaneously into the body of the attacker. This causes sufficient temporary pain to cause the attacker to break off the attack, without causing him permanent ill effects. The injection is administered by a needle projectile fired from a gun and containing the irritating substance. The projectile disclosed in U.S. Specification 2,923,243 may be used and may be modified by closing the front of the hollow needle member and providing it with a number of laterally disposed openings so that the irritating substance is injected sub-cutaneously.
Patent GB-1451044-A (GB)
Title: Optocal objective system
IPC: G02B13/14
Filed: 1972-08-10
Abstract: 1451044 Optical scanning apparatus MEL EQUIPMENT CO Ltd 9 Nov 1973 [10 Aug 1972] 37459/72 Heading G2J [Also in Division H4]  An infrared scanning system comprises a concave aspheric main reflecting mirror 1 e.g. a hyperboloid, which directs a convergent beam on to an oscillating (or rotating) plane mirror 2 which directs the beam via a set of refractive field correctors 3 and 4 on to a line array of radiation detectors 6. Mirror 2 oscillates about axis 10 and the set of field correctors 3 and 4 may be coupled to the mirror 2 and move therewith. The set of field correctors comprises two spaced elements having opposite powers and made of single crystal germanium material. A 2‹ x 2‹ field of view is scanned across the line of detectors 6. To reduce the weight of the system apertures 12 and 15 are formed in mirrors 1 and 2.
Patent GB-1317410-A (GB)
Title: Dynamometer
IPC: G01L1/26
Filed: 1971-08-10
Abstract: 1317410 Load cells CARL SCHENCK MASCHINENFABRIK GmbH 10 Aug 1971 [18 Aug 1970] 37567/71 Heading G1N A load cell comprises a tubular member 1 (Fig. 1) carrying an upper and lower cup-shaped spring element 2, 3 shrunk fit into the ends of tube 1, and a central load transducer 5 pre-stressed between adjustable members 4, 7 in the springs 2, 3. The test force is applied via end plate 9, 16 to the tube 1.
Patent GB-962825-A (GB)
Title: Improvements in or relating to the manufacture of dialkyl carbonates
Inventor: LOVERSIDGE RICHARD
IPC: C07C69/96
Filed: 1961-10-20
Abstract: A continuous process for the manufacture of dialkyl carbonates comprises contacting phosgene with a countercurrent flow of at least one mole of a primary monohydric aliphatic alcohol, containing up to 5 carbon atoms, per mole of phosgene at temperatures between room temperature and the boiling point of the alcohol, continuously withdrawing the resulting chloroformate and alcohol and then heating, optionally, in the presence of more alcohol, to a temperature between the boiling point of the chloroformate and 6 DEG C. below the boiling point of the alcohol and recovering dialkyl carbonate.  The total amount of alcohol used in both stages is at least 2 moles per mole of phosgene. The phosgene may be passed into the bottom of a packed tower where it meets a downcoming flow of alcohol, e.g. ethyl alcohol. The temperature at the bottom is at least 20 DEG C. and rises upwards through the column to a temperature at the top which is less than the boiling point of the alcohol. The reaction mixture from the first stage may be refluxed in the second stage to convert the chloroformate to dialkyl carbonate and this may be in one or several vessels arranged in cascade.
Patent GB-326565-A (GB)
Title: Improvements in or relating to picture and the like telegraph apparatus
IPC: H04N1/23
Filed: 1928-12-20
Abstract: 326,565. Wright, G. M., and Smith, S. B. Dec. 20, 1928. Copying-telegraphs.-A Moore lamp, or other device in which a glow discharge occurs between electrodes, forms the source of light for a picture telegraph transmitter, and is energised by alternating current whose frequency is preferably a multiple of the frequency employed to drive the rotating optical system or equivalent scanning arrangement. Light from the Moore lamp M illuminates the picture surface 6 after reflection by a prism 3 and the modulated light is reflected by a mirror 9 to a light sensitive cell 11. Scanning is effected by rotation of the tube 2 in which the mirrors and lens are mounted, and translation of the surface 6, by suitable gearing from the alternating current motor 12. The current frequency is controlled by an electrically maintained tuning fork at 18, and for the purpose of energizing the lamp M the frequency is multiplied at 19. Specification 276,399 is referred to.
Patent GB-998178-A (GB)
Title: Bobbin holders for textile machines
IPC: D01H1/18
Filed: 1963-09-26
Abstract: 998,178. Bobbin supporting devices. WHITIN MACHINE WORKS. Sept. 26, 1963 [Oct. 5, 1962], No. 37968/63. Heading D1J. As the bobbin 29, Fig. 1, is pushed upwardly on to the bobbin holder 10 it pushes against the inclined surface 36 of a slide 31, Fig. 2, freely movable in an inclined slot 30 in the holder 10. The slide 31 is thus forced to move upwardly in the slot to retract its projecting end 34 and permit the bobbin holder 10 to move to the position shown in broken lines in Fig. I. The slide 31 then drops down to the position shown to engage under a shoulder 37 of the bobbin 29 and so support the bobbin 29. To remove the bobbin 29 it is first raised to the position shown in Fig. 2, thin action causing the bobbin 29 to push against the inclined surface 32 of the slide 31 and so raise the slide to the setting shown in Fig. 2. The bobbin 29 is then pulled downwardly off the holder 10 before the slide 31 has a chance to slide downwardly to a setting in which the end 34 thereof again projects from the holder 10. The axis of the lower portion 13 of the holder 10 is offset by about three degrees with respect to the vertical axis of the upper portion 11.
Patent GB-619817-A (GB)
Title: Improvements in multiply paper and like bags and closure means therefor
IPC: B65B51/06
Filed: 1946-12-30
Abstract: 619,817. Paper and like bags ; making and sealing. MEDWAY PAPER SACKS, Ltd., and WINSKILL, J. W. Dec. 30, 1946, No. 38020. [Classes 94 (i) and 94 (ii)] A multi-ply bag 10 of paper or the like with plain ends has one, or both, ends closed by bands of adhesive 16b between the plies 14... 16, and a cover strip preferably of flexible material is folded over the edges of the plies and stuck to the bag end by an adhesive subjected to heat and pressure. The plies may be stuck together by the one pressing of the heated rolls 30, which secure the cover strip 17, or the plies may be secured by a different type of adhesive and during a separate operation. The bags 10 are carried over a table 18, between guides 22, and a cover strip 17, which may pass through an adhesive-applying trough, is led through a former 29 to cover the edges of the plies and pass between heated rollers 30 before being severed by a guillotine 31. The mouth of each filled bag, Fig. 7. may be secured in a similar manner. Adhesives of thermoplastic or thermo-setting materials may be used.
Patent GB-1097795-A (GB)
Title: Rice vermicelli and spaghetti process
Inventor: CHIH TONG WEN
IPC: A23L7/109
Filed: 1965-09-07
Abstract: Rice grains are dry-milled to form rice flour, water is added to form a dough which is passed into a premixer where it is formed into granules which are then steamed, extruded and cut into the required strand form, and the thus-formed strands are then again steamed to cook them and thereafter dried.  The extrusion may be effected in two stages.  Preferably the granules are cooled prior to extrusion.
Patent GB-936101-A (GB)
Title: Improvements in or relating to caprolactam
IPC: C07D201/12
Filed: 1959-11-11
Abstract: A process for the depolymerization of polymeric caprolactam comprises mixing the polymer with an aqueous solution of amino caproic acid obtained by passing a wash water containing monomeric and oligomeric caprolactam over a hydrogen activated anion exchange resin at a temperature at which hydrolysis occurs and eluting the resulting amino caproic acid from the resin with aqueous ammonia (see Group IV(b)), depolymerizing polymers and oligomers in the resultant mixture by heating to a temperature above 150 DEG C. under elevated pressure and then extracting the depolymerization mixture with a water-immiscible solvent to recover the monomeric caprolactam formed. The depolymerization is preferably effected at 250 DEG C. or higher. The extraction may be effected with a chlorinated hydrocarbon, e.g. chloroform.  The mother liquor remaining after the extraction may comprise oligomeric and polymeric lactams and may therefore be recycled to the mixture to be depolymerized.  An example describes the process using waste caprolactam polymer and a liquor obtained in the washing of polymeric caprolactam fibre and suitable apparatus is described.ALSO:Caprolactum is recovered simultaneously from wash water containing monomeric and oligomeric caprolactam and from polymeric caprolactam by a process comprising (1) passing the wash water over a hydrogenactivated anion exchange resin at a temperature at which hydrolysis occurs to form amino-caproic acid which is adsorbed on the resin; (2) eluting the resin with an aqueous solution of ammonia to form an aqueous solution of amino-caproic acid; (3) mixing polymeric caprolactam with this solution; (4) depolymerising polymeric and oligomeric caprolactam in the mixture by heating it to a temperature above 150 DEG C. under elevated temperature and (5) extracting the resultant mixture with a water-immiscible solvent to recover therefrom monomeric caprolactam, formed during the depolymerisation from the polymers and from the amino-caproic acid. The ion-exchange resin treatment is generally effected at raised temperature.  The depolymerisation is preferably effected at 250 DEG C. or higher.  The extraction may be effected with a chlorinated hydrocarbon, for example, chloroform.  The mother liquor remaining following the extraction generally contains some oligomeric and polymeric caprolactam and may be recycled to step (3).  An example describes the process using a liquor obtained in washing polymeric caprolactam fibre, and waste polymeric caprolactam, and suitable apparatus is described.
Patent GB-870434-A (GB)
Title: Improvements in or relating to oil burners and methods for operating the same
Inventor: HANSEN SVEN
IPC: F23K5/14
Filed: 1959-11-11
Abstract: 870,434. Liquid burners. DANSK STOKER & VARMEKEDEL KOMPAGNI A. S. Nov. 11, 1959, No. 38288/59. Class 75(1). [Also in Group XXVIII] An oil feeding device for a low pressure oil burner of the type comprising an air pump of the rotary wing type in which oil is whipped with air to a foamy mixture which is fed to the burner the device comprises means for providing two oil currents which are adjustable in a substantially proportional manner one of the oil currents being connected to the inlet of the rotary wing pump and the other current being connected directly to the burner. A gear pump 10, 11 on a shaft 8 feeds oil to a bore 32 in a casing 5 leading to a distributer disc 16 having a suction opening 17 for supplying the oil to a rotor 14 on the shaft 8. The rotor has six bores each with a piston 22 which reciprocates under the action of a spring 24 and contacts a plate 30 at one end. An adjusting screw 31 varies the angular position of the plate to vary the stroke of the pistons. The screw contacts a plate 28 retaining a ball bearing 29 on the plate 30. The oil discharges from the bores to openings 18, 19 in the distributer disc. The opening 18 leads to the air pump and the opening 19 directly to the burner. A driven shaft 1 mounts the air pump 3. The shaft has a worm 6 which meshes with a worm gear 7 on the shaft 8. A casing 25 fastened to a wall of the casing 5 encloses the rotor. An end cover 26 encloses the plates 28 and 30. The oil may pass through a preheater. A lubricating groove 21 is provided in the distributer disc and a centre opening 20 for the shaft 8.
Patent GB-1531796-A (GB)
Title: Hydrodynamic brake device for motor vehicles
IPC: F16D57/00
Filed: 1976-09-17
Abstract: 1531796 Control of filling of hydrodynamic brakes VOLVO AB 17 Sept 1976 [24 Sept 1975] 38510/76 Heading F2S The degree of filling of a hydrodynamic brake is thermostatically regulated by a valve arranged on the inlet side and adapted to progressively close as the temperature of the braking fluid rises. As shown, the brake 6 is connected in the coolant circuit of motor M and a valve member 24 regulates its input. The valve member is mounted on a spindle 23 connected at each end to respective diaphragms 26, 33. A manually adjustable pneumatic control pressure from line 9 acts on diaphragm 26 to tend to open the valve against the pressure of a spring 38 and the fluid pressure in a chamber 36, both acting on diaphragm 33. Fluid from a brake outlet line 10 flows through chamber 36 and around a thermostat 40 before joining a return line 7 from the brake to a heat exchanger 8 so that the plunger 43 of the thermostat acts to limit the opening movement of the spindle to a degree dependent on the fluid temperature. The thermostat is mounted on a spring 41 so as to be overridable if in an emergency, a sufficiently large pressure is applied through line 9. In a modification (Fig. 2, not shown) the valve is a spool valve, the control pressure is hydraulic, the brake fluid is oil, and the thermostat is responsive to the temperature of the coolant from heat exchanger 8.
Patent GB-930587-A (GB)
Title: Improvements in or relating to tamper proof screw closures
IPC: B65D41/28
Filed: 1961-10-30
Abstract: 930,587. Tamper-proof closures. ROSEDALE ASSOCIATED MANUFACTURERS Ltd. Oct. 30, 1961 [Nov. 11, 1960], No. 38768/61. Class 125(3). A tamper-proof closure, preferably made of an elastic thermoplastics material, for a bottle or the like comprises an internally threaded screw cap 4, Fig. 2, and a separate safety ring 7 with a beading 8 which locks beeneath a similar beading 2 on the bottle neck, a flange 6 on the cap lying, before removal of the cap, under a flange 5 on the ring. Either or both of the said flanges may be resilient or formed with radial notches or weakenings so that the cap may easily be removed; however, when the cap is replaced, the flange 6 will lie above the flange 5, indicating prior removal of the cap. On said cap is a sealing extension 9, which may also have the shape of a cup or ring collar, or a plain portion may be provided above the screw threads to grip the bottle neck. In a modification, Fig. 9, on outlet fitting 16 is locked into a hole in the flat metal wall 15 of a container by a safety ring 20 upon initial screwing-down of a cap 19 similar to that already described.
Patent GB-963371-A (GB)
Title: 5-bis-(ª‰-chlorethyl)-aminomethyl uracil hydrochloride and a method of preparing same
Inventor: RNDR FARKAS JIRI
IPC: G01R13/32
Filed: 1961-10-31
Abstract: 5-bis-(b -chloroethyl)-aminomethyl uracil hydrochloride is prepared by reacting 5-chloromethyl uracil with bis-(b -chloroethyl)-amine in the presence of an organic solvent containing no hydroxyl groups.
Patent GB-1456052-A (GB)
Title: Hair dryers
IPC: A45D20/26
Filed: 1974-09-05
Abstract: 1456052 Hair dryers E REED 5 Sept 1974 [10 Sept 1973] 38908/74 Heading A5R In a hair-dryer comprising a heater, a fanassembly and a hood, the flow pattern of hot air over hair is controlled by funnel-shaped valves 15 connected to the hood by universal joints (22) (Fig. 3 not shown) and the amount of air flow is regulated by manually adjustable valve members (18). The valves may be provided with perforated metal or plastics shields (26) and some may be replaced by snap-on U-shaped metal or plastics shields to regulate the direction of air-flow. An exhaust pipe may be connected to the hood.
Patent GB-818551-A (GB)
Title: A device for use in pressure washing of clothes by heated water
IPC: D06F1/08
Filed: 1956-12-20
Abstract: 818,551. Washing-boilers. FERMOR, A. J. Oct. 31, 1957 [Dec. 20, 1956], No. 38915/56. Class 64(1) A circulator for assisting convectional flow in a washing-boiler (it may be secured permanently to the bottom of the boiler) has apertures b around the open base a and apertures d, arranged spirally for example, along a tube c which is closed at the top and secured to the base a. In use, jets of water are said to issue from the apertures d to penetrate clothes in the boiler. The circulator is of non-ferrous metal or galvanized steel.