baber/WOPTO huggingface dataset:
Patent GB-373283-A (GB)
Title: Improvements in railway signalling apparatus
IPC: B61L5/22
Filed: 1931-03-18
Abstract: 373,283. Railway detonator-signalling apparatus. STEWART, A. C., Inverhaggernie, Crianlarich, Perthshire. March 18, 1931, No. 18578/30. [Class 105.] A detonator mechanism comprises a curved treadle which is moved horizontally towards and away from the rails by a connection with the semaphore signal mechanism and when depressed by a train wheel moves about a horizontal axis parallel to the track. The treadle comprises a bow spring 16 fixed at the middle to a bell-crank member 15 which is pivoted at 14 to a rod 13 moved towards or from the rail 8 by a weighted lever 6 connected with the semaphore signal mechanism. Depression of the treadle effects by means of a link 18 connected to a trigger catch 25, 26 the release of a spring- pressed member 27 which drives the pivoted hammer weight 30 on to the exploding pin 39 for the detonator. When the treadle is withdrawn and then again moved towards the rail, the trigger 26 engages and returns the hammer drive piece 27 to the ready position shown, whereby the weighted hammer 30 also returns. The return of the drive piece 27 also, by means of a pawl 37, Fig. 5, feeds the detonator magazine 33 one step forward to bring another detonator over the exploding pin. To prevent explosion of a detonator on putting the signal to line clear which would free the hammer piece 27 by the lateral withdrawal of the trigger 25, 26, there is provided a catch 43 which secures the hammer drive piece 27 until the treadle is moved up to the rail, whereupon a lug 46 on the rod 13 moves out of a notch 47 on the catch 43 which can now be depressed by the trigger 25, 26. A spring detent 41 prevents accidental rotation of the magazine. The free ends of the treadle 16 rest on supports 22, Fig. 3, so that the weight of the train is necessary to actuate the treadle which is of stiff spring form to prevent accidental actuation. The detonator may include a flashing compound. The magazine may have two or more concentric series of detonator chambers, a plurality of detonators being simultaneously exploded at each depression of the treadle.
Patent GB-121002-A (GB)
Title: An Improved Driving Belt Fastener.
Inventor: MORRIS THOMAS EDMUND
IPC: F16G3/08
Filed: 1917-12-15
Abstract: 121,002. Morris, T. E., and Bagnall, H. Dec. 15, 1917. Pelt fastenings.-An oblong bridge-piece A, secured by bolts and nuts 4, 5, is provided with projecting teeth 1 at the ends which penetrate the ends 2, 3 of the belt, and with domed projections 6, 7 round the bolt-holes. The bridge-piece may be stamped from sheet metal and may be rectangular, and two or more parts each similar to A may be formed in one piece for use with wide belts.
Patent GB-596614-A (GB)
Title: Antenna structure
IPC: H01Q21/20
Filed: 1945-07-20
Abstract: 596,614. Aerials; radio directionfinding. STANDARD TELEPHONES & CABLES, Ltd. July 20, 1945, No. 18710. Convention date, July 22, 1944. [Class 40 (v)] An antenna providing a radiation pattern consisting of crossed figures of eight, consists of four symmetrical loops 1-4 in the same plane and forming a closed geometrical pattern around a central point ; each loop is open at the central point and opposite pairs of loops 1 and 3, 2 and 4, are connected in parallel by connecting links 23-26 and to respective dual feeders 29-30, 27-28. The loops may consist of concentric line and be arranged as shown, the adjacent sides 7-14, 8-9, 10-11, 12-13 having their outer conductors soldered together and enclosed in a metallic sheath 20. The inner ends of the sheaths are attached to a junction-box 21 containing the loop connections and feeder junctions and the outer ends are terminated in junction-boxes 22. Gaps 37-40 are symmetrically arranged in the outer conductors of each loop in order to energize the antenna and because of the symmetrical arrangement of these gaps the box 21 can be mounted directly on top of a metallic mast without insulation. The feeders may be led down inside the mast and connected to the field coils of a goniometer 32, 33 the search coil 34 being connected to a translator 35 and a signal device 36. This arrangement may be used in direction-finding apparatus or in a radio beacon. The antenna of Fig. 1 has a radiation pattern which is horizontally polarized, by adding dipoles arranged as shown in Fig. 3 a similar but vertically polarized pattern may also be produced.
Patent GB-138954-A (GB)
Title: Improvements in or relating to the purification of zinc solutions
IPC: C01G9/06
Filed: 1918-11-16
Abstract: The removal of nickel and cadmium, and copper if present, from solutions of zinc salts is effected by treatment with zinc fume or "blue powder" at a raised temperature, for instance 80-100 DEG  C., in the presence of a small proportion of free acid, such as 0.1 per cent or less.  Additional acid may be added during the treatment to dissolve any basic zinc salts produced, or the zinc may be washed with acid to remove any basic salts deposited upon it.  If copper is not present, it is introduced, for instance, as sulphate, or by adding copper carbonate ore to the zinc ore from which the solution is obtained.  This facilitates the separation of the nickel.  The purified solution may be freed from cobalt by the process described in Specification 138,948.  Specifications 955/87 and 138,947 are also referred to.  According to the Provisional Specification, the zinc employed may be in other forms.
Patent GB-1513234-A (GB)
Title: Process for preparing 3-perfluoroalkyl-1,2-epoxypropanes
IPC: C07B61/00
Filed: 1977-05-05
Abstract: 1513234 3 - Perfluoroalkyl - 1,2 - epoxypropanes DAIKAN KOGYO CO Ltd 5 May 1977 [6 May 1976] 18864/77 Heading C2C 3 - Perfluoroalkyl - 1,2 - epoxypropanes are prepared by reacting 3-perfluoroalkyl-2-iodopropanol-1 with an alkali metal hydroxide in an aqueous medium in the presence of a quaternary ammonium compound. The most preferred catalysts are C 10 -C 20  alkyl or alkenyl-tri(C 1-3  alkyl)ammonium hydroxides or chlorides and tri(C 2-3  alkyl)benzylammonium hydroxides or chlorides, used in an amount of 0À0001-0À15 mole per mole of the iodopropanol. Usually 1-2 equivalents of NaOH or KOH per mole of iodopropanol are used as a 0À1-30 wt.% aqueous solution, and a temperature of 60- 100‹ C. is adopted. In the Examples (CF 3 ) CF(CF 2 ) 6 CH 2 CH-o-CH 2  is prepared.
Patent GB-357624-A (GB)
Title: Improvements in dielectric materials
IPC: C08L7/00
Filed: 1930-06-20
Abstract: A dielectric composition comprises rubber, a synthetic hydrocarbon polymer, and up to 20 per cent of a substance to give thermoplasticity.  The polymer is preferably polymerized styrene, but polymerized butadiene, isoprene, piperylene, dimethyl butadiene, methyl pentadiene, indene, and the like may also be employed, suitable proportions being 40-80 per cent of the composition. Plasticizers are preferably waxes, such as ceresin, ozokerite, "superla" wax.  The rubber may have its nitrogen content reduced by swelling it in a solvent such as 70 per cent petroleum spirit and 30 per cent acetone for several days, draining off the clear solution, and by distilling off the solvent, or precipitating the rubber by the addition of a non-solvent such as acetone.  The dielectric may be made by allowing the rubber to imbibe styrene, polymerizing by heating to 100 DEG  C. for 7-14 days, and masticating with wax, or the wax may be dissolved in the styrene before polymerizing. Guttapercha or balata, deresinated if desired, may be used in place of, or in addition to the rubber, being added before or after the polymerization.  The composition may be vulcanized.  Antioxidants e.g. phenyl a  or b  naphthylamine may be incorporated or the material may be coated with wax.  Several examples are given, of which the following is typical: 6 per cent of superla wax is dissolved in 62 per cent of styrene, 32 per cent of deproteinized rubber is added, and the mass is heated to 125 DEG  C. for 6 days. The hard mass is masticated at 110 DEG  C. and extruded. Specifications 323,038, [Class 70, Indiarubber &c.], 340,302, and 345,939, [Group IV], are referred to.
Patent GB-445660-A (GB)
Title: Improved watch with concealable dial
IPC: G04B37/04
Filed: 1935-07-02
Abstract: 445,660. Watches. ENCAUSSE ET KRASKER, 32, Rue CoquilliÚre, Paris. July 2, 1935, Nos. 18934 and 18935. Convention dates, Nov. 15, 1934 and May 23, 1935. [Class 139] A watch with concealable dial comprising a cylindrical outer case 1 with an opening 2 and a rotatable interior watch - supporting member 10 having part-cylindrical supporting surfaces 11, 11a is characterized by resilient restoring means 9, 14, 14<a> between the outer case and inner member which, after the dial has been exposed, restores the inner member to the position in which the dial is hidden. The watch is mounted in an inner case consisting of a parallelepipedon 10 to which are attached two part-cylindrical pieces 11, 11<a>. The outer protective casing consists of a cylinder 1 cut away at 2 to expose the dial and at 21 to house the winding stem. An end 3 welded to part 1 and an end 3<a>, slidable axially along part 1 by a pin-and-slot connection 20, 21<a>, complete the outer case. A journal 7 on the inner case 10 pivots in bearing 6 of end 3 by a ball 12. Sleeve 8 on end 3<a> has two pins 9 coacting with two helical grooves 14 on a plug 13 on the inner case 10. A helical spring 14<a> is attached at one end to a disc 17 which is keyed to sleeve 8 to prevent rotation, and at the other end to a disc 15 which has an offset 15<a> reaching into an opening 16 of the inner case 10. As the end 3<a> is pressed towards the other end 3 the pins 9 move axially and cause the inner case 10 to rotate to expose the dial at the opening 2. The spring 14<a> is further stressed and on release causes the end 3<a> to move outwardly and rotate the inner case backwardly to conceal the dial. In a modification, the outer case has two peripheral portions joining the edges 2, one of which is slotted to admit the winding stem.
Patent GB-754043-A (GB)
Title: Body protective pads
IPC: A61F13/06
Filed: 1954-06-29
Abstract: 754,043. Surgical protective pads. JOHNSON & JOHNSON. June 29, 1954 [July 2, 1953], No. 19082/54. Class 81(2). A protective felt pad is of increased fibre density towards its outer edges. Thus, in the case of an annular corn pad having a chamfered upper surface 17, the felt is more compressed towards the outer edge 16, so that this area takes a greater proportion of any applied pressure than the inner area around the corn. In another form, see Fig. 4 (not shown) the upper surface is of convex cross section. Pads of the foregoing type are formed by compressing a web of fibrous material by means of a die which produces the desired upper surface so that the necessary compression towards the outer edges is automatically produced. Such compression may be carried out with the application of heat and moisture in order to set the fibres in their compressed state. Prepared pads are then cut from the web, and may receive a coating of adhesive if desired.
Patent GB-475205-A (GB)
Title: Improved apparatus for capping bottles or like containers and printing the caps
IPC: B67B3/00
Filed: 1936-07-09
Abstract: 475,205. Printing on bottle closures. CROWN CORK & SEAL CO., Inc. July 9, 1936, No. 19089. Convention date, Aug. 28, 1935. [Class 100 (ii)] [Also in Group XVII] An apparatus for printing bottle &c. caps while they are on the bottles comprises a capping head or heads and corresponding printing heads. They are carried by vertically reciprocating members 10. A printing head 22 carries a slidable rod 26 and a compression spring 27<1>. A further compression spring 29 is supported on the shouldered part of the rod 26. An opening 30 in the head 22 is coaxial with a ring 31 which centres the bottles. The head has an opening 36 therein. The rod 22 carries a plate 42 which in turn carries a cup 46. Between the plate and cup a resilient washer 48 is interposed, and the printing-pad 49 is disposed within the cup. A band 50 around the head supports a hinge pin 52 having integral arms 55 at either end. which are also connected by a bar 57. An inking-pad 60 is provided in a hinged cup 59. A leaf-spring 61 yields slightly to permit the inking-pad to come into engagement with the printing-pad as shown in Fig. 3. When the member 10 moves downwards the inking-pad is swung outwardly, and the printing-pad engages the bottle cap as shown in Fig. 4. The final printing pressure is exerted through the spring 29. When the head is arrested by the bottle &c. the lost motion connections between the parts 15 and 22 come into operation. Usual means for feeding the bottles to the capping and printing heads are provided. U.S.A. Specifications 1,956,218 and 1,957,464 are referred to.
Patent GB-174092-A (GB)
Title: Improvements in electrical lighting systems
IPC: H02J3/04
Filed: 1920-07-07
Abstract: 174,092. Bethenod, J. Aug. 8, 1916, [Convention date]. Void Published under Sect. 91 of the Act]. Addition to 11224/15. Lighting systems; systems depending on the use of static transformers. - Electric lamps P<1>, P<2>, P<3> are connected between terminals and the tappings O<1>, O<2> of a magneto winding M or of a transformer. In a modification each lamp is connected across one phase of a delta-connected or star-connected three-phase winding.
Patent GB-685161-A (GB)
Title: Grinding machines
IPC: B02C4/44
Filed: 1950-08-01
Abstract: 685,161. Roller and breast mills. SCHOFFEL, L. Aug. 1, 1950 [Oct. 24, 1949], No. 19153/50. Class 59 The roller and the breast member of a roller-and-breast mill are made of a ceramic material such as is obtained by burning fine grain corundum with the usual binder having a hardness of 7¢ to 9 according to the Mohs' scale of hardness. As shown, the hollow roller 1 is provided at its ends with stepped-down surfaces 2 and is coupled to a shaft 3 by way of disc flanges 4 which grip the surface 2 by means of conically bored-out rim portions 5. The flanges 5 are secured against axial displacement by locking rings 6. The shaft 3 is provided with an axial partitioned hole 7 serving for the admission and exhaust of cooling water.
Patent GB-147136-A (GB)
Title: Projectile with a copper driving band
IPC: F42B14/02
Filed: 1920-07-07
Abstract: 147,136. Krupp Akt.-Ges., F. Aug. 17, 1915, [Convention date]. Projectiles. - Consists in providing a ring C of tin behind the copper driving-band B of a projectile A, in order to reduce the deposit of copper in gun barrels. The ring is made of smaller outer diameter than the bore of the gun measured between the lands of the rifling.
Patent GB-348439-A (GB)
Title: Improvements in or relating to glow discharge lamps
IPC: H01J17/40
Filed: 1930-06-24
Abstract: 348,439. Discharge lamps. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. June 24, 1930, No. 19251. Convention date, July 10, 1929. [Class 39 (i).] A glow - discharge lamp for use in television apparatus &c. comprises an anode A located at one end of a hollow cylindrical cathode K of capillary dimensions which is coated externally with insulating material, e.g. glass, so that a beam of light approximating to point area is emitted from an opening in the cathode remote from the anode. The filling may consist of neon-helium or argon-nitrogen and the electrode leads may be coated with glass. In a modification for use in sound-film apparatus, a beam approximating to line area is obtained by the use of a hollow cathode, the cross section of which is a flattened ellipse.
Patent GB-418926-A (GB)
Title: Improvements in the production of non-knocking benzines
IPC: C10G69/00
Filed: 1933-07-07
Abstract: Benzines containing sulphur or oxygen compounds, derived, e.g from the destructive hydrogenation or cracking of coal, tar or mineral oils, or petroleum distillates containing sulphur, are rendered non-knocking by first treating preferably in the vapour phase with hydrogen at elevated temperatures and pressures in the presence of catalysts to remove sulphur and oxygen as hydrogen sulphide and water, and then subjecting the product to a dehydrogenating heat treatment without the addition of hydrogenating gases, under pressure and in the presence of catalysts.  In the hydrogenation treatment the pressures may vary from 20 to 300 atmospheres or more and the temperature may be 250 to 430 DEG  C., the catalysts being those immune from sulphur poisoning which are employed in destructive hydrogenation, e.g. the oxides or sulphides of metals of the fifth or sixth group of the periodic table.  The dehydrogenating treatment may be effected at 450 to 600 DEG C. at pressures similar to the hydrogenating treatment, the catalysts being bauxite, fuller's earth or those used in the hydrogenating treatment.  Instead of subjecting the whole of the benzines to the treatment, part only may be so subjected and then mixed with the remainder. Specifications 296,429, 325,487, 328,618, [all in Class 32], 343,359, and 349,655 are referred to.
Patent GB-721710-A (GB)
Title: Methods of, and apparatus for, heat treating articles by high frequency electric energy
IPC: H05B6/78
Filed: 1952-07-30
Abstract: 721,710. Dielectric heating. SHIRLEY, F. July 30, 1952 [Aug. 22, 1951]. No. 19284/52. Class 39 (3). An article is heated by placing it within a cavity resonator supplied with high frequency electromagnetic energy through transmission means having a regulator for regulating the amount of high frequency energy supplied to the resonator. A magnetron 1 supplies a waveguide 12 connected to a T-shaped guide 5 having two side arms and a vertical arm 13. The energy is divided equally between the side arms and passes through two branches to a similar T-shaped guide 8 having a vertical arm 8a. High frequency energy then passes through an adjustable plunger 17 which tunes the resonator. A phase shifter 6 is arranged in one wave guide branch and comprises a plate 6a of dielectric material adjustable horizontally and parallel to the waveguide walls. The energy delivered to the article is regulated by adjusting the phase shifter, and the excess energy is absorbed by a dummy load 10 placed in the vertical arm 8a. The phase shifter is constructed so that any energy reflected back towards the supply from one branch will never be in phase with that from the other branch, and some or all of this reflected energy is absorbed by a dummy load 13a in the vertical arm 13. The side walls of the cavity resonator have opposed openings 27, Firg. 7, through which a conveyer belt 28 travels, and the upper ends of the treated articles 26 are engaged by a springy element 28a carried on the resonator roof. Adjacent the openings U-shaped extensions 29 forming quarter wave traps to prevent energy loss are provided. A shielded thermocouple 14 is inserted in the resonator perpendicular to the electric field and in contact with the article. A directional coupler 24 measures the energy passing to the load, and a probe 18 connected through a co-axial cable to tuning stubs 20, attenuator 21, crystal rectifier 22, and to a D.C. micro-ammeter 23, enables the resonant condition to be ascertained.
Patent GB-1528837-A (GB)
Title: Solvent deasphalting
IPC: C10G21/00
Filed: 1976-05-11
Abstract: 1528837 Deasphalting oils RALPH M PARSONS CO 11 May 1976 [15 May 1975] 19304/76 Heading C5E In a process for deasphalting a hydrocarbon oil using a low molecular weight solvent the liquid deasphalted oil-solvent mixture leaving the extraction zone is pressurized and heated and a portion of the solvent is evaporated from the heated mixture in an evaporation zone maintained above the temperature and pressure of the extraction zone and combined with cooler solvent recovered from the remainder of the deasphalted oil-solvent mixture and from the fluid heavy hydrocarbonsolvent mixture (i.e. the asphalt phase) in an amount sufficient to furnish at least 50% of the heat required to heat the recycled cooler solvent to the temperature at which it is introduced into the extraction zone.  Hydrocarbon oil 10 is extracted at 12 (e.g. using iso-butane at 220-240 F. and 330-400 psia. The deasphalted oil-solvent phase is pressurized at 20 and heated at 22 prior to vaporization of solvent 26 in a flash drum 24. Residual solvent is recovered from the residue of the deasphalted oil-solvent phase by steam stripping at 34. The asphalt-solvent phase 38 is heated at 40 and solvent is recovered therefrom by flashing at 42 and steam stripping at 44. The recovered solvent 32 is condensed at 46 and recycled via line 50. The cool solvent in line 50 is heated by admixture with vaporous solvent 26 and if necessary by further heating at 25. The mixture formed by combining the vaporous solvent 26 and the cool recycle solvent 50 can be collected in an accumulation zone (Fig. 2, not shown) from which it is then pumped into the extraction zone.
Patent GB-530767-A (GB)
Title: Improvements in and relating to elastic fluid power plants
IPC: B61C17/12
Filed: 1939-07-03
Abstract: 530.767. Steam turbines. BRITISH THOMSONHOUSTON CO., Ltd. July 3, 1939, No. 19313. Convention date, July 1, 1938. [Class 110 (iii)] A power plant suitable for a locomotive comprises a main turbine 12, receiving steam from a boiler 10 and exhausting to a condenser 21 and driving an electric generator 13, a first auxiliary turbine 22 driving air and fuel pumps 23, 24 and a water feed pump 25 and a second auxiliary turbine 86 driving cooling means 87 for the condenser. The main turbine has a speed governor 15 operating a valve 14 by a servomotor 17, 18. The turbine 22 receive steam from the main turbine by a bleeder pipe 26 and when necessary from the boiler by a pipe 27. The back-pressure of the turbine 22 is maintained by a bleeder connection 97 from the turbine 12 to the pipe 85. Steam supplies to the turbine 22 are controlled by valves 29, 30, the latter opening only when the former is fully open, which are operated by a servomotor 35 and a device 73, 74 responsive to the pressure drop over a valve 46 controlling the supply of water to the pump 25. The valve 46 is controlled by a water-level device 56 in the boiler and a device 10 responsive to the flow of steam in the pipe 11. The turbine 86 receives the exhaust of the turbine 22 supplemented by steam from late stages of the turbine 12. The main valve of the turbine 86 is controlled through a servomotor 92 by a device 89, 90 responsive to the exit temperature of the condenser 21. If, when the main turbine is shut down, all the exhaust from turbine 22 is not required a pressure relief valve 128 opens a pipe 127 which byepasses the turbine 22. If, when the main turbine is in operation, more steam is required, the power cylinder first closes a valve 102 in the bleeder pipe 97 and then opens a valve 103 in a bleeder pipe 101 connected to an earlier stage. If the main turbine is shut down, an electric circuit is broken at 121 which deenergizes a solenoid 119 and allows a valve 113 to close the bleeder connections. A non-return valve 112 closes then boiler steam is admitted to turbine 22.