baber/WOPTO huggingface dataset:
Patent GB-626705-A (GB)
Title: Preparation of benzene hexachloride
IPC: C07C23/12
Filed: 1946-06-14
Abstract: Benzene hexachloride, free from objectionable odour, is manufactured by additive chlorination of benzene in two stages, a preliminary additive chlorination being carried out until the appearance of crystals of benzene hexachloride in the mass being treated, and the unchlorinated benzene then being separated by distillation (e.g. in steam) and subjected to chlorination until benzene hexachloride is obtained.  The product may be further purified by treatment with a 10 per cent aqueous caustic lye.  The first crop of benzene hexachloride possesses the usual odour rendering it unsuitable for use as such, but may be employed for the preparation of other chlorination products, e.g. trichlorobenzene.  The Specification as open to inspection under Sect. 91 comprises also the manufacture of benzene hexachloride from benzene purified by other methods, e.g. by crystallization, by treatment with ammonia or with dilute or concentrated sulphuric acid, or by chlorination of the impurities under conditions other than those described above, e.g. in the absence of light and of catalysts (whereby the benzene is hardly chlorinated) or in the presence of a substitution catalyst such as ferric chloride (whereby some chlorobenzene is formed).  Thus benzene removed from the cycle in the manufacture of chlorobenzene is suitable, as also is benzene recovered in pure form from processes other than chlorination, e.g. during the catalytic hydrolysis of chlorobenzene to phenol or in the manufacture of diphenyl (when the impurities are rendered separable by pyrolysis).  This subject-matter does not appear in the Specification as accepted.
Patent GB-827101-A (GB)
Title: Improvements relating to valve operating mechanism for internal combustion engines
IPC: F02B75/22
Filed: 1957-06-06
Abstract: 827,101. Valve gear; casings. E. T. DEVELOPMENTS Ltd., and TURNER, E. June 6, 1958 [June 6, 1957], No. 18019/57. Classes 7(2) and 7(6) The camshaft 20 of a V-engine is located between the banks of cylinders at about the level of the upper ends of the cylinders and actuates the valves through tappets 19 mounted in oppositely inclined guides in a housing 21 which fits over the camshaft 20 and closes the space between the banks of cylinders to which it is detachably secured and from which it is removable independently of the camshaft 20. The guides 25 are attached to the plate 21 at opposite sides of a recess 26 which receives the camshaft 20.
Patent GB-711676-A (GB)
Title: Improvements in or relating to teapots
IPC: A47G19/14
Filed: 1952-07-16
Abstract: 711,676. Tea pots. TAYLOR. J. L. July 16, 1952 [April 8, 1952], No. 18039/52. Class 66 A tea pot is provided with a detachable hotwater container having as its outlet a vertical tube with an open end at or near the bottom of the pot. Provided the water in the container is hotter than the infused tea there is little or no tendency for the hot water to mix with the infusion. The container 8 is supported by a flange engaging the rim of the pot, and locked by the rim of the pot lid engaging within the rim of the container. The container outlet is the tube 9. In medications, the container may be supported by a screw thread in the mouth of the pot, Figs. 8, 9, 10, 15 (not showm), or by a bayonet fitting in the mouth, Fig. 11 (not shown), or by a screw thread on the end of the tube engaging a threaded boss on the bottom, Figs. 12, 13 (not shown), or by a bayonet catch on the end of the tube engaging a slotted boss on the bottom, Fig. 14 (not shown). The end of the tube may dip into a well in the bottom, Figs. 3, 5 (not shown), or be located over a pin upstanding from the bottom, Fig. 4 (not shown), or may bear on the bottom with outlet holes cut in the walls of the tube, Figs. 6 and 7 (not shown).
Patent GB-966052-A (GB)
Title: Separating low-boiling-point gas mixtures
IPC: F25J3/04
Filed: 1962-05-10
Abstract: 966,052. Cold separation of gas mixtures. SULZER FRERES S.A. May 10, 1962 [May 25, 1961], No. 18052/62. Heading F4P At least part of the cold requirements of a continuous compressed gas mixture, e.g. air separation process are met by at least partial evaporation of a separated high boiling component, e.g. oxygen which is obtained during low tariff off-peak power periods and stored in a tank 35. During normal operation liquid oxygen withdrawn from tank 35 is vaporized in heat exchangers 15a, 15b traversed by effluent nitrogen withdrawn from the head of column 9 through a duct 14 and having been compressed at 18, 19. The so-cooled compressed nitrogen is further cooled in a boiling coil 20 and is expanded at a valve 21 into a separator 22 after which the liquid nitrogen is used as reflux whilst uncondensed nitrogen is passed along a duct 25 to the inlet of compressor 19. Oxygen gas leaving exchangers 15a, 15b through a duct 36 is added to product gaseous oxygen withdrawn from the column through a duct 11 and part of the combined stream traverses heat exchangers 7, 8 in which incoming air is cooled whilst the remainder of the oxygen gas is expanded in a turbine 31 and is delivered at low temperature through a supply duct 32. During off-peak power demand periods extra air is forced by a compressor 50 through exchangers 7, 8 and is cooled by expansion at an engine 58 and a valve 61. The resulting liquid oxygen is fed through a duct 67 to the tank 35. In a modification the tank is charged from a separate conventional double column 59, Fig. 1 (not shown).
Patent GB-357173-A (GB)
Title: Manufacture of artificial masses from vinyl compounds
IPC: C08F16/12
Filed: 1930-06-12
Abstract: Artificial masses prepared by polymerizing, in the absence of a solvent, a mixture of an organic vinyl ester with a vinyl ether, or of an organic vinyl ester or a vinyl ether with a polymerizable compound containing the group CH2 = C < which is not a vinyl ester, ether, or halide, may be used for lining vessels for use in the chemical industry.ALSO:Artificial masses are manufactured by polymerizing, in the absence of a solvent, a mixture of an organic vinyl ester with a vinyl ether, or of an organic vinyl ester or a vinyl ether with a polymerizable compound containing the group CH2 = C < which is not a vinyl ester, ether or halide.  The polymerization may be effected by the action of heat or of another form of energy, such as chemically active rays or electrical energy, and may be carried out in the presence of a usual polymerization catalyst such as benzoyl peroxide, a perborate, hydrogen peroxide or silver peroxide.  A filling agent, a softening agent or both may be added. The products, which differ in chemical and physical properties from the single polymerides or mixtures thereof, are suitable for preparing formed articles for electrotechnical purposes, for preparing fancy goods, for lining vessels for use in the chemical industry, and for the preparation of compound glass. Examples describe the polymerization of mixtures of: (1) acrylic acid ethyl ester and vinyl acetate; (2) acrylic acid methyl ester and vinyl acetate; (3) vinyl acetate and butadiene; (4) vinyl ethyl ether and isoprene; (5) vinyl acetate and vinyl ethyl ether. A mixture of vinyl ethyl ether and styrene is also specified. Specification 313,569, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-874071-A (GB)
Title: Improvements in and relating to ground-based aviation trainers
Inventor: HELLINGS GEOFFREY MOFFAT
IPC: G09B9/14
Filed: 1956-06-12
Abstract: 874,071. Grounded flight trainers. GENERAL PRECISION SYSTEMS Ltd. Sept. 12, 1957 [June 12, 1956], No. 18117 /56. Class 4. A ground based aircraft trainer has a dummy cockpit, means for tilting the cockpit about at least one horizontal axis in such a way that the sense and degree of tilt at any instant are representative of the sense and magnitude of the forces assumed to be acting on the aircraft simulated by the trainer and means for regulating the rate of tilting so that the displacement of the cockpit with time diminishes as the cockpit moves from one position to another so that the ultimate cessation of the movement is imperceptible. A dummy cockpit 2, provided with controls 4 and indicating instruments 6, is suspended above the student's 'head by a universal joint 8 and is tilted fore and aft by hydraulic rams 10, 12 connected to the cockpit through cables 14, 16. An analogue computer 18, the inputs to which are derived from the setting of the controls 4, continuously computes the accelerating or decelerating forces resulting from adjustment of the cockpit controls and provides voltages, representing the forces, which are applied to servomotors 20 to actuate the control valves 22 of the servomotors. The arrangement is such that sudden operation of the controls will result in the application of high acceleration forces to the cockpit but at all times the movement of the cockpit diminishes gradually. Further rams may be provided to apply lateral acceleration forces to the cockpit in accordance with supposed aerodynamic side forces and a visual impression of travel may be given to the student by projection equipment and a viewing screen which must move with the cockpit to retain the illusion of the application of acceleration forces.
Patent GB-1268942-A (GB)
Title: Glass acoustic delay line
IPC: C03C3/112
Filed: 1969-04-09
Abstract: 1,268,942. Electromechanical delay lines. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 9 April, 1969 [9 April, 1968], No. 18157/69. Heading H3U. [Also in Division C1] The delay medium of an acoustic delay line has a first region of higher mechanical Q and a contiguous region the mechanical Q of which diminishes gradually from the higher value to a lower value in the direction away from the first region. The first region of higher mechanical Q serves to transmit the wanted wave energy between input and output transducers whereas the contiguous region of lower mechanical Q serves to dissipate by damping unwanted wave energy resulting from undesired reflections. As shown in Fig. 1 the delay medium 10 comprises a block of fused quartz, alkali-lead-silicon-oxide glass or alkali-lead-silicon fluo-oxide glass. Bonded to the ends 21, 22 of the medium 10 by adhesive 13, 14 are transducers 11, 12 of lead magnesium niobate titanate zirconate. The delay line may be coated with a soft synthetic resin material 19. The material of the medium 10 is treated so that the block has a central core region 29 of high mechanical Q value surrounded by a peripheral region 31 having a mechanical Q which gradually diminishes from the value of the region 29 at points 25, 26 to a lower value at points 24, 27 as shown in Figs. 2, 3. Fig. 2 shows a lateral cross-section through the block 10 and the dash line 30 indicates the boundary between the regions 29, 31. The region 31 is obtained by diffusing into the block 10, at a temperature in the range 500-550 C., ions of silver, lithium or sodium, the thickness of the region being determined by the temperature and the duration of the treatment. The treatment can be effected by immersing the block 10 in a bath of fused salt containing the appropriate ions, or by coating the block with an enamel or paste containing the appropriate ions and then heating the coated body. The Specification describes particular examples of both methods.
Patent GB-183440-A (GB)
Title: Method and device for testing materials
IPC: G01N3/34
Filed: 1922-07-03
Abstract: 183,440. Signal Ges. July 21, 1921, [Convention date]. Addition to 157,755. Testing physical qualities of materials.-The apparatus described in the parent Specification is modified by mounting the specimen between one of the masses of the oscillating structure and another free mass not forming part of the structure. This free mass is supported by suitable means so that its weight is taken up and does not act on the specimen. In the form shown in Fig. 3, the oscillating structure comprises masses m1, m2 connected bv the tube s and rod r. The mass m2 which is small relatively to the free mass is provided with a coil l excited by alternating current, the mass m1 forming an armature to the coil. The specimen p is mounted between the mass m2 and a large mass t which is suspended by springs f from, and is guided in the mass m1. In a modified form, the mass t is mounted on rollers moving on rails. The Specification as open to inspection under Sect. 91 (3) (a) refers to Specification 188,346. This reference does not appear in the Specification as accepted.
Patent GB-656576-A (GB)
Title: Improvements in or relating to toy guns
IPC: A63H5/04
Filed: 1948-07-07
Abstract: 656,576. Toy guns. BERGER, S. I. July 7, 1948, No. 18251. [Class 132 (iii)] In a toy machine gun of the kind provided with means for producing sparks and noise, said means being driven by a spring motor as described, for example, in Specification 655,502, the motor unit 18, which comprises a spring 31 and associated gearing including a crown gear 43 and a gear 37 with coupled ratchet wheel 46, is housed within a box-like frame 27 of sheet metal and said frame is adapted to be removably mounted within the body 10 of the gun. One of the two complementary stampings 11 constituting the gun body is provided with a rectangular aperture 17 for the passage of the frame 27, the aperture having a cover plate 19 which is normally retained in position by the engagement of lugs 20 on the edge of a countersunk flange 171 around the aperture with openings 21 in said cover plate and is formed with a slot 191 to receive a winding key 36 extending from the end of the spring shaft 33. The frame 27 is secured within the body 10 with the gear 43 mating a pinion 63 on the actuating shaft 59 of the spark unit 47, 48 and the ratchet wheel 46 abutting a clapper 66, by upstanding lugs, not shown, which are inserted through openings in the top of the body and then bent over.
Patent GB-255879-A (GB)
Title: Improvements in high voltage direct-current electrical systems
IPC: H02M7/10
Filed: 1926-07-21
Abstract: 255,879. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Marbury, R. E.). July 24, 1925, [Convention date]. Vacuum or low-pressure apparatus, arrangements of.-High tension direct current for use in precipitating apparatus, cable testing, &c. is obtained at terminals 14, 15 from a number of series connecter condensers 8 - - 11 which are charged respectively by cascade connected transformers 4 - - 7 through rectifiers 12. The first transformer 4 is supplied through an induction regulator 3 and is arranged to step up the supply voltage, e.g. to 50000 volts, whilst the remaining transformers are of one to one ratio so that all the condensers are charged to the same potential. When thermionic valves are employed as rectifiers, the filaments may be supplied by tappings on the windings of 'the transformers, or alternatively, in order to avoid variation of filament current when the voltage is varied by the regulator 3, auxiliary transformers regulated independently of the main transformers may be used for filament supply.
Patent GB-807696-A (GB)
Title: Improvements in or relating to water-insoluble monoazo dyestuffs of the benzene-azo-benzene series
IPC: C09B43/132
Filed: 1957-06-07
Abstract: The invention comprises water-insoluble monoazo dyes of formula: <FORM:0807696/IV (c)/1> wherein R is the radical of a hydroxybenzene having a molecular weight below 125 and coupling ortho to the hydroxy group and R1 is a phenyl or methylphenyl radical.  They may be prepared by coupling in alkaline medium 1 mol. of the diazo compound of a 1-amino-4-benzoylamino-benzene, which may be methyl-substituted in the benzoyl radical, with a suitable phenol, such as 1-hydroxy-4-methyl- or -ethyl- or -methoxy-benzene. Alternatively 1 mol. of an aminoazo compound of formula: <FORM:0807696/IV (c)/2> wherein R is as defined above is reacted with 1 mol. of a functional derivative of benzoic or a toluic acid, preferably in solution in an inert organic solvent or in aqueous suspension and in the presence of an acid-bending agent.  The dyes give yellow shades on synthetic polyamide, polyester, polyvinyl and cellulose ester fibres.  They may also be used for dyeing silk and wool, and pigmenting lacquers, oil and resins and dyeing synthetic fibres in the mass.  In examples: (1) 1-amino-4-benzoylamino-benzene is diazotized and coupled with p-cresol in aqueous alkaline medium; (2) 21-hydroxy-4-amino-1 : 11-azobenzene is dissolved in pyridine and reacted with benzoyl chloride.  Further dyes are specified of the above formula wherein R=2-hydroxyphenyl and R1=4-methylphenyl; R=2-hydroxy-5-methylphenyl and R1=2-, 3- or 4-methylphenyl; R=2-hydroxy-5-ethylphenyl and R1=phenyl; R=2-hydroxy-5-methoxyphenyl and R1=phenyl or 4-methylphenyl.  In Example (1) the dye obtained in (1) above is dispersed with turkey red oil and used in the following dyeing processes: (a) added to water and a sulphonated fatty alcohol and the resultant dyebath used to dye cellulose acetate at 80 DEG  C., or in a high temperature dyeing machine to dye polyethylene terephthalate at 125 DEG  C.; (b) polyethylene terephthalate is introduced into a dyebath prepared as in (a), the bath is raised to 55-60 DEG  C. a mixture of mono- and di-chlorobenzenes is added and the dyeing is completed at the boil; (c) polyethylene terephthalate is treated in an aqueous solution of diammonium phosphate, the sodium salt of o-hydroxydiphenyl is added to the solution which is heated to 55-60 DEG  C., then the dye and a sulphonated fatty alcohol are added and the dyeing completed at the boil, excess o-hydroxydiphenyl being removed from the dyed material by heating.
Patent GB-1395763-A (GB)
Title: Crimping apparatus and process
IPC: B29D24/00
Filed: 1972-04-20
Abstract: 1395763 Riveting HOECHST AG 20 April 1972 [21 April 1971] 18307/72 Heading B3U [Also in Divisions B5 and D1] Apparatus for riveting two plastics sheets together, e.g. a corrugated sheet 1 to a plane sheet 2, see Division B5, comprises a die 6 with a plunger 4 slideable therein, and a further plunger 9. In operation heated sheets are fed to the apparatus and the plunger 9 enters a bore in the die 6 to form a depression, Fig. 2b, upon subsequent withdrawal of the plunger 9, the plunger 4 is moved by an hydraulic, pneumatic, or spring device 5 to fold the depression, Fig. 2c, and join the sheets. In Fig. 13 (not shown), the die 6 and plunger 9 are respectively mounted in rotatable wheels (11) and (8), and in Figs. 5 and 6, (not shown), the dies 6 are mounted on a rectilinearly movable platen (23).
Patent GB-237278-A (GB)
IPC: B44D3/22
Filed: 1925-07-17
Abstract: 237,278. Plasto-Vertrieb. July 17, 1924, [Convention date]. Reservoir pens. - A writing or drawing appliance for use with semi-liquid ink or paint comprises a pointed glass tube a having at one end a small discharge aperture and closed at the other end by a stopper c. A flexible pipe e is connected thereto, through which air is blown into or sucked from the tube a to control the discharge of liquid. The pipe is provided with an exchangeable mouthpiece f adapted to be held in the mouth to leave the hands free.
Patent GB-354922-A (GB)
Title: Rotary tooth- and gum massage brush
IPC: A61C17/24
Filed: 1930-06-16
Abstract: 354,922. Rotary tooth and gum massage brush. SOC. SANEX, 54, Boulevard Pasteur, Paris. June 16, 1930, No. 18376. Convention date, June 15, 1929. [Class 19.] A rotary toothbrush comprises two parallel brushes 1, 2, Fig. 1, mounted parallel and tangentially in a shield 3 and driven towards one another as indicated by arrows in Fig. 3. The motive means may vary, and may consist of a hand ratchet drive 13, as shown in Fig. 1. Tooth paste 5, Fig. 3, or the like may be arranged to impinge on the brushes by a spring 6. The working face of the brushes may be protected by a grid 17; Fig. 5. In a modification, the brushes may also be in twopart sets 15, 15<1>, 16, 16<1> arranged as shown. In another modification, Fig. 6, used as a gum or face massage implement, rubber rollers 1<1>, 21 may replace the brushes.
Patent GB-932367-A (GB)
Title: Control arrangements for variable frequency a.c. generating systems
IPC: H02P27/04
Filed: 1961-05-19
Abstract: 932,367. Control of A.C. motors. LAURENCE SCOTT & ELECTROMOTORS Ltd., and K. K. SCHWARZ. May 18, 1962 [May 19, 1961], No. 18395/61. Class 38 (3). [Also in Groups XXXV and XXXVIII] A remote position control system for one or more motors 11A comprises a variable frequency generator 1A driven by a split field series D.C. motor 15 fed through a transductor 16, which is controlled by a difference signal from a magslip 12 added to a fixed bias from transformer 13 and rectified at 13A, the required position setting being obtained on a potentiometer 14. The magslip 12 is attached to a motor rotor via gearing. If several motors are employed, one motor may be coupled to the magslip, or position signals from all motors may be added and averaged. The variable frequency generator is designed to give a relaively high output voltage at low frequencies to ensure stable operation (see Group XXXV).
Patent GB-260035-A (GB)
Title: Improved means for damping an oscillating or alternating current circuit
IPC: H01G5/38
Filed: 1925-07-20
Abstract: 260,035. Clough, N. H. July 20, 1925. Condensers.-A condenser having a variable absorption of energy and preferably means to maintain its capacity constant is used as a damping device for oscillatory circuits. The energy absorption may be effected by using a dielectric Q, Fig. 6, having appreciable loss between plates N, O, a compensating plate P being provided to maintain the capacity constant. In a modification a fixed or variable resistance M is used, Fig. 5, or alternatively one or more of the condenser plates may be formed of high-resistance material-
Patent GB-433983-A (GB)
Title: Improvements in or relating to connecting rods
IPC: F16H21/34
Filed: 1934-06-25
Abstract: 433,983. Connecting - rods. BRUSH ELECTRICAL ENGINEERING CO., Ltd., and SENIOR, H. V., Falcon Works, Loughborough, Leicestershire. June 25, 1934, No. 18646. [Class 122 (i)] In a big end assembly for two rods in which a main rod 11 is secured to brasses 14, 15 embracing the crank-pin and having an external cylindrical surface 17 providing a bearing for the big end 21 of a second rod 18, the rod 11 has a flat foot 10 attached to side cheeks 16 on the brasses, the said foot being recessed at 12 to provide clearance for the big end 21.
Patent GB-1078900-A (GB)
Title: Gas turbine engine fuel system
IPC: F02C7/22
Filed: 1966-04-28
Abstract: 1,078,900. Fuel supply system. GENERAL MOTORS CORPORATION. April 28, 1966 [May 4, 1965], No. 18682/66. Heading F4T. [Also in Division F1] A gas turbine engine fuel system for supplying fuel to duplex fuel nozzles in an engine 13 via primary and secondary fuel manifolds 11 and 12 comprises a distributing valve 8 fed from a control 7, said valve 8 being shown in a condi tion prior to ignition of the engine. On ignition fuel from a filter 23 enters a cylinder within valve 8 and flows from this cylinder through a line 49 to a portion of a bore 31 in the valve 8 defined by lands 42 and 43. From an enlarged portion 38 of the bore this fuel is fed via conduit 50 to primary manifold 11. Increasing fuel pressure acts on the left-hand side of a piston 37 within cylinder 33 to overcome the loading of a spring 46. A valve spool 34 on which are mounted the lands 42 and 43 and a further land 45 is connected with piston 37 via a stem 35, and movement of the piston causes land 42 to gradually throttle the inlet to conduit 50. Simultaneously land 45 which is provided with converging notches 53 moves to the right and provides communication between enlarged portions 39 and 41 of the valve bore 31, thereby allowing fuel from filter 23 to pass to conduit 51 connected with secondary manifold 12. Ultimately the flow to primary manifold 11 will be cut off -and the main fuel flow supplied through secondary manifold 12. The main fuel flow passes directly through filter 23 cleansing filter element 26 and also cleanses an element of a filter 58 in the conduit 51, said filter 58 having entering it a conduit 57 venting cylinder 33.