baber/WOPTO huggingface dataset:
Patent GB-914852-A (GB)
Title: Optical glass
IPC: B65D5/32
Filed: 1959-01-22
Abstract: 914,852. Optical glass compositions. CARLZEISS - STIFTUNG, [trading as JANAER GLASWERK SCHOTT & GEN.]. Jan. 22, 1959 [Jan. 25, 1958], No. 2454/59. Drawings to Specification. Class 56. Optical glass which is fluorine-free and thormin-free consists of a mixture of (I) a glass of La 2 O 3  60% by weight B 2 O 3 , 40%; with (II) at least 5% by weight of a stable glass of a system chosen from the components: alkaline metal earth oxide, cadmium oxide, zinc oxide, lithium oxide, boric oxide with the provision that the nolar ratio of (a); (b) is greater than 0.2, wherein (a) represents the divatent oxide or oxides together with Li 2 O if present, and (b) represents B 2 O 3  and that the ratio by weight of (c); (d) is at least 2, wherein (c) represents ZnO and/or CdO, and (d) represents alkaline earth metal oxide and/or Li 2 O; and with (III) 0-10% by weight of a component chosen from the oxides ZrO 2 , WO 3 , Ta 2 O 5 ; up to 9% by weight of B 2 O 3  in the resulting glass being optionally replaceable by an equivalent weight of SiO 2 , the glass being made by a process which includes mixing in the required proportions components (I) and (II) and, if present, (III). A number of examples are given and triangular phase diagrams for component (II) for the systems ZnO-CaOB 2 O 3  and CdO-CaO-B 2 O 3 .
Patent GB-719186-A (GB)
Title: Improvements in or relating to mobile stools
IPC: A47C1/08
Filed: 1953-01-28
Abstract: 719,186. Seats. RITTER CO., Inc. Jan. 28, 1953 [June 27, 1952], No. 2504/53 Class 52(2) A mobile vertically adjustable stool or seat, particularly for doctors, dentists or other persons, comprises a base mounted on castors, a tubular support within which is telescopically adjustable a post carrying the seat, the base being provided with feet adapted to frictionally engage the floor, when desired, to render the stool immobile. As shown the base 16 comprises a casting 19 provided with castors 26 and adjustable floor-engaging feet 73. Mounted on the base 19 is a tubular support 29 having a collar 31, the support 29 having slidable therein a centre post 47 upon which is a support plate 63 for the seat 62. The post 47 is provided with a series of annular grooves 48 with a selected one of which engages a detent 36 carried by a lever 32 pivoted at 33 in the collar 31. The lever 32 is operated to lock and unlock the post 47 by means of co-acting 34, 43, the latter being carried by a tube 38 slidably mounted on the tubular support 29 and operated against a spring 46, by a ring 39, by means of pressure from the stool occupant's foot. The feet 73, two in number, are mounted adjustably on legs 72 the upper ends 74 of which are operated upon by cams formed on the-underfaces of a hub 81 of a ring 86, rotation of which, in one direction or the other, by the stool occupant raises or lowers the feet 73 from and towards the floor. The seat 62 with its plate support 63 is rotatably mounted on the upper end of the centre post 47.
Patent GB-1462762-A (GB)
Title: Synchronizing means for a machine of the type comprising two intermeshing rotors
IPC: F16H57/02
Filed: 1973-01-17
Abstract: 1462762 Rotary positive-displacement fluidmachines SVENSKA ROTOR MASKINER AB 16 Jan 1974 [17 Jan 1973] 2504/73 Heading F1F [Also in Division F2] Synchronizing means for two intermeshing grooved rotors 14, 16 of an internal combustion engine comprises a first pair of meshing gears 34, 36 secured to the rotor shafts and having the same gear ratio as that of the rotors, and a second pair of intermeshing gears 38, 40, having a gear ratio different from that of the rotors, the gear 38 being secured to the shaft of the rotor 14, and the gear 40 being rotatably mounted on the shaft of the rotor 16 and coupled thereto by a slipping coupling 42. In a modification, a gear 48, Fig. 4 (not shown) is coupled to the shaft of rotor 14 by a slipping coupling 50.
Patent GB-557752-A (GB)
Title: Improvements in anti-oxidants
IPC: C08K5/18
Filed: 1942-02-26
Abstract: 557.752. Stabilizing soans and oils UNITED STATES RUBBER CO. Feb. 26, 1942, No. 2510. Convention date. April 30, 1941. [Class 91] [Also in Groups V and IV] Compounds of the formula:- where R and R' are aryl groups, one or both of which is further substituted by an aryl-amino group, and A is a saturated or unsaturated aliphatic radical, are used as antiox dants for unsaturated vegetable oils, essential oils, petroleum oils and soaps. A specified compound is 1-(p-anilinophenyl)-3-phenyl-1,3- dimethyl-cyclobutane.
Patent GB-102544-A (GB)
Title: Improvements relating to Parachutes.
Inventor: SMITH ERNEST EDWARD
IPC: B64D17/52
Filed: 1916-02-21
Abstract: 102,544. Smith, E. E. Feb. 21, 1916. Parachutes.-A. parachute for use with aeroplanes or other aircraft is arranged in a casing in such a w-ac that, when released therefrom by the application of the load, the mouth of the parachute is partly extended and is retained in this condition for a while and then allowed to expand to its full limit. Fig. 1 shows one form, in which the parachute 13 is folded within a casing 1 having a cover 3, to which is secured a tube 4 provided with a number of springy ribs 6, pivoted at 7 and fitted with stops 8. The ribs 6 are connected by cords 9 to a dash-pot cylinder 10 adapted to slide over a piston 11 fixed to the tube 4. The main suspension rope 12 passes through the tube 4 and is secured to the rigging cords 14, Fig. 3, of the parachute, which is provided at its periphery with loops 16 adapted to engage the ends of the ribs 6. When the weight of the pilot comes upon the rope 12, the cover 3 and the whole apparatus become detached from the casing, and the ribs 6 spring outwards and partly open the parachute, as shown in Fig. 3. After a time, the cylinder 10 slides out of engagement with the piston 11, whereupon the ribs 6 swing upwards and release the loops 16, thus allowing the parachute to open fully, the weight of the pilot causing the cords 14 to be paid out from pockets in which they are folded. The casing 1 may be attached to the fuselage of an aeroplane by a cord 18, Fig. 7, and be supported on chocks 19 and locked by pins 22 operated by a lever 24. The dash-pot may be replaced by a spring device. In Fig. 9, the parachute is shown arranged in a disklike casing, the loops 16 being engaged by catches 32 which are retained in the locked position by pawls 33 connected to the piston 11 by cords 35; the cover 3 is of fabric and is stripped off by cords 36 connected to the main rope 12. The parachute may be prevented from expanding until it has dropped some distance from the casing, by surrounding the parachute with light threads connected by a length of stout cord to the end 2 of the casing, so that the threads become broken when the cord is fully extended, thus allowing the dash-pot device to come into action.
Patent GB-213373-A (GB)
Title: Improvements in and relating to mirrors, reflectors and the like
IPC: F21V17/00
Filed: 1923-01-27
Abstract: 213,373. Parsons, Sir C. A. Jan. 27 1923. Drawings to Specification. Mounting electric lamps in lanterns.-In order to preserve the concentration of the projected beam of light in the vertical direction when the reflector of a searchlight is elastically deformed, the source of light is moved slightly closer to the reflector by independent means or by means coupled to the screws employed for deforming the reflector. Specifications 5001/96 and 16599/07 are referred to.
Patent GB-719201-A (GB)
Title: Improvements in or relating to housings for slide valves
IPC: F16K27/10
Filed: 1953-01-30
Abstract: 719,201. Valve accessories. DEWRANCE & CO., Ltd. Jan. 30, 1953 [Jan. 30, 1952], No. 2717/53. Addition to 693,655. Class 135 In a welded slide valve housing of the kind described in the parent Specification, the stubtubes 7, Fig. 1, comprising the branch connections are formed with inwardly tapering bores 14 and seating surfaces 13 and the strength of the butt welds 11 surrounding the flanged openings 5 are made at least equal to the strength of the butt welds 12 between the stub-tubes and the pipe line by enlarging the external diameter of the stub-tubes adjacent the flanged openings. In a modification, a recess 19, Fig. 2, is formed in the inner end of each stub tube 7 and a separate seat member 18 welded therein.
Patent GB-379972-A (GB)
Title: Improvements in or relating to closures for bottles, jars and other vessels
IPC: B65D41/04
Filed: 1932-01-29
Abstract: 379,972. Closures for bottles &c. CLOSURE SERVICE CO., Collins Street, Toledo, Ohio, U.S.A. Jan. 29, 1932, No. 2733. Convention date, Nov. 18, 1931. [Class 125 (iii).] A closure for bottles &c. comprises an inner cap 10 having screw-threads or other projections, over which is telescoped an outer cap 14, the lower margins of the skirts of the two caps being secured together by rolling the outer one inwardly to form an internal bead 17 presenting no raw edge of metal.
Patent GB-1350334-A (GB)
Title: Injection moulding machines
IPC: B29C45/48
Filed: 1972-01-20
Abstract: 1350334 Injection moulding machines DESMA-WERKE GmbH 20 Jan 1972 [29 Jan 1971] 2740/72 Heading B5A An injection moulding machine comprises two or more plasticizing devices 11, 12 for delivering plasticized material through separate respective conduits 17, 18 to an injector (10) comprising an axially reciprocable screw 15. The plasticizing devices may each comprise a screw 13 (14). Each feed conduit 17, 18 may have a heating coil 19 and an exchangeable orifice element 21. The injector screw 15 has a core 24 which may be shaped as shown in Fig. 3 to provide a lower pressure feeding zone 22 to which a foaming gas may be supplied through bores 26, 27 in the screw 15.
Patent GB-329975-A (GB)
Title: Improvements in surface condensers and the like
IPC: F28B1/00
Filed: 1929-01-28
Abstract: 329,975. Petty, T. Jan. 28, 1929. Drip intercepting devices.-In surface condensers having tapering spaces between the unit sections or blocks of cooling tubes 1 and the diaphragm plates 2, the sections and plates are so arranged in relation to the shell inlet a that the condensate falls across the convergent tapering space at the steam approach side and collects upon the diaphragm which guides the steam into the tube block. The tube blocks and plates may be set at any angle to the horizontal and the boundaries of the tube blocks may be curved. The tubes may be pitched so that the centres of any four mutually adjacent tubes occupy the corners of a square, the sides of the square being inclined in such a manner that falling drops from the uppermost tube of the square pass through the centre of the lower side of the square.
Patent GB-524318-A (GB)
Title: Clip devices for use in waving or curling hair
IPC: A45D6/08
Filed: 1939-01-27
Abstract: 524,318. Hair-waving devices. BANKS, A. W., and 'BANKS, A. H., [trading as BANKS & SONS, L.]. Jan. 27, 1939, No. 2881. [Class 131] A clamp for gripping a strand of hair near the scalp when waving or curling hair comprises two jaws 8, 9 manipulated by arms 10, 11 on the other side of the pivot 7. To permit the opening of the jaws, a detent 17 on a spring limb 16 is adapted to engage one of a series of apertures 15 or peripheral notches, the detent being released by depressing the limb 16. A turned-over portion 20 on the jaw 8 embraces the jaw 9 during the gripping operation.
Patent GB-594674-A (GB)
Title: Improved apparatus for investigating and recording amplitudes of multiple frequencies
IPC: G01P3/48
Filed: 1945-02-05
Abstract: 594,674. Indicating vibrations. MITCHELL, J. H. Feb. 5, 1945, No. 2928. [Class. 106 (iv)] [Also in Group XXXVI] The amplitudes of the frequencies in a complex waveform are determined by means of a reference frequency bearing a fixed relation. ship to the component frequencies of the wave. The reference frequency is utilised to produce a series of test frequencies, each of which is separately mixed with a constant frequency and filtered to produce a pair of side-bands. Each pair of side-bands is separately mixed with the complex waveform, producing with the component whose frequency corresponds to the respective test frequency a beat component at the constant frequency whose amplitude is proportional to that of the component frequency in the complex waveform. The corresponding beat components produced by the several pairs of side-bands are filtered out and applied in succession to indicating and recording means to produce a representation of each of the component wave frequencies plotted against the reference frequency. The invention is shown applied to the examination of engine vibration frequencies. A generator 3 driven by the engine (not shown) produces power at a frequency bearing a constant relationship to the engine frequencies. The output from the generator 3 is applied to the synchronous motor 4 driving the phonic wheels 5 by means of the gear mechanism 6, the variable-speed mechanism 7 allowing of adjustment of the relative speed of certain of the phonic wheels. The outputs are taken over the selecting switches 9 rotated in unison by the motor 20, to the balanced modulators 10. A constant frequency is applied to the modulators 10 from the source 11, the side-band frequencies produced being selected by filters 12 and applied to the modulators 13. The output.from the vibration pick-up 1 attached to the engine is applied over an amplifier 2 to the modulators 13. The beat components identical in frequency with the source 11 are selected by filters 14 and applied to the plates 15 of a C.R.T. over the selecting switch 16 rotated in unison with the switches 9 and at four times the speed. Power from the generator 3 is applied to a frequency discriminator 17 to produce a potential proportional to frequency which is applied to the plates 18 of the C.R.T. The respective traces are photographed by means of the multipleplate camera 19 operated in synchronism with the switch 16.
Patent GB-310905-A (GB)
Title: An improved spraying apparatus
IPC: B05B15/25
Filed: 1928-01-30
Abstract: 310,905. Page, W. J. Jan. 30, 1928. Direct air-pressure apparatus, non-automatic.-Apparatus for spraying fruit trees, &c. comprises a tank. a rotary agitator, a nozzle connected to the lower end of the tank, and an air pump at the upper end to produce air pressure within the tank. The tank 2 is preferably cylindrical and is provided with adjustable legs 3 connected to a metal strap 4 detachably clamped on the tank. Other detachable and adjustable metal straps 8 support rigid shoulder straps 9 ending in handles 10 to facilitate transportation. The liquids to be sprayed are passed into the tank 2 through an inlet 11 provided with a valve 12, a funnel 13, and a gauze strainer 14. The air pump 15 is operated by means of a handle 16, and the tank is provided with a pressure gauge 17 and a pet cock 18. The agitator consists of vanes 26 carried by arms on a shaft 20 provided with an operating-handle 23. In the bottom of the tank is a screw plug 27 having secured to it an outlet pipe 28 provided with a valve 29. Attached to the pipe 28 is a flexible hose 30 furnished with a spraying-pipe 31 fitted with a spraying-nozzle 32 and a control valve 33.
Patent GB-556523-A (GB)
Title: Improvements in or relating to tool chucks
IPC: B23B31/12
Filed: 1942-03-06
Abstract: 556,523. Chucks. VIDAL, C. H., and ARON, E. March 6, 1942, No. 2989. [Class 83 (iii)] A bevel-closing chuck has a two diameter body 10, 11 separated by a shoulder 15 through which openings 14 for the jaws 16 extend to an actuator 25 sliding on the diameter 10 and threaded to engage a threaded sleeve 19 retained on the body by a ball race 22, between flanges 21, 18, and by a flange 23 screwed into the sleeve. locked by a screw 9, and engaging a shoulder 24. Openings 26 in the actuator at right angles to the openings 14 receive heads 28 on the jaws. The end of the sleeve is toothed at 30 and recesses 31 are provided to receive a pinion key. In a modification, the openings 26 are at right angles to the chuck axis.
Patent GB-1246381-A (GB)
Title: Improvements in or relating to telephone instrument circuit arrangements
Inventor: STERNBECK OLAF
IPC: H04M1/58
Filed: 1969-01-17
Abstract: 1,246,381. Ariti-sidetone circuit. O. STERNBECK. 17 Jan., 1969 [18 Jan., 1968], No. 9992/69. Heading H4R. An anti-sidetone circuit includes a microphone amplifier feeding a line and a series circuit comprising a receiver and artificial load connected across the line such that microphone signals in phase with each other are applied to both sides of the receiver. The microphone amplifier includes transistors T1, T2, T3 with the transistors T2, T3 so arranged to produce outputs which are in phase at terminals U1, U2. In operation the product of the current at U1 and the line impedance should equal the product of the current at U2 and the artificial load impedance for no microphone signal to appear in the receiver and the values of R b  and C b  are chosen accordingly.
Patent GB-1453611-A (GB)
Title: Cooling of gas turbine engines
IPC: F02C7/18
Filed: 1973-01-20
Abstract: 1453611 Gas turbine plant - deriving cooling air ROLLS-ROYCE (1971) Ltd 8 Feb 1974 [20 Jan 1973] 3065/73 Heading F1G The invention relates to a gas turbine engine and to means for taking air from the compressor thereof, the air being passed through an auxiliary flow-path comprising a turbine and a compressor in series flow and being utilised for engine cooling. The compressor 10 of the main engine is shown in Fig. 1 and air is tapped therefrom and passed through a turbine 14 then through a cooler 20 then through a compressor 16 from which it is discharged for cooling parts of the main engine, for example the turbine blades thereof, the compressor 16 being driven by the turbine 14 through shaft 18. A further turbine 22 driven by exhaust gases from the main engine may be connected to assist drive of the compressor 16. In Fig. 2 the air tapped from the engine compressor 10 is first cooled in a cooler 24, a proportion of the air so cooled passing through turbine 14, cooler 20 and compressor 16 to the point of use as in Fig. 1; the remaining portion of air from the cooler 24 is passed to a second turbine 22 which assists the drive of compressor 16, the air discharging from the turbine 22 also being utilized for cooling purposes for example for cooling lower-pressure turbine blades. In Fig. 3 (not shown) air tapped from the main compressor 10 is utilized in part as in Fig. 1; the remaining part of the tapped air is passed through a cooler 24 then expanded through a turbine 22 which assists drive of the compressor 16, finally being utilized for cooling purposes.
Patent GB-739624-A (GB)
Title: Improvements in and relating to sealing rings for preserving cans
IPC: B65D55/08
Filed: 1954-02-02
Abstract: 739,624. Container closure sealing rings. WAGNER VERWALTUNGS GES., G. [trading as WAGNER, G. [Firm of] ]. Feb. 2, 1954 [Feb. 13, 1953], No. 3128/54. Class 125 (3). In the manufacture of a vacuum can sealing cord with an integral rip-tongue an unvulcanized piece of cord la is placed with ends 2a around a pin 3 to lie parallel and the ends are then transformed into a rip-tongue 2 by means of a die and the formed ring 1 with integral rip-tongue 2 vulcanized.
Patent GB-502208-A (GB)
Title: Improvements in or relating to closures for hatchways, windows and the like
IPC: B63B19/24
Filed: 1938-02-01
Abstract: 502,208. Windows. PAINE, H. SCOTT-, and BARKER, S. N. Feb. 1, 1938, No. 3166. [Class 20 (iii)] [Also in Group XXXIII] A closure for hatchways and windows is held against its supporting wall by spring- loaded or resilient tension members stretched across it and secured to the wall. The hatch cover 30, which has a resilient packing secured to its lower face at the edges, is pressed against the wall 32, either in its open or closed positions, by rubber ropes 34. These ropes also form guides for the hatch cover. As applied to a window, the ropes are carried over the glazed aperture on curved channel bars, and the ropes are detachable at one end by being stretched.
Patent GB-577433-A (GB)
Title: An improved process for rendering nylon fabrics water repellent
IPC: D06M15/227
Filed: 1944-02-21
Abstract: 577,433. Proofing fabrics. DUNBAR, C., LANDELLS, G., NORRIS, C. A., SMITH. R. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 21, 1944, No. 3167. [Class 140] Nylon fabrics are rendered water repellent by treatment with a conventional reagent such as a heat decomposable long-chain quaternary ammonium compound or a wax, the material being subjected to a hot calendering operation either before or after the treatment with the reagent. The nylon fabric is passed through a dispersion of the quaternary ammonium salt of a wax emulsion, the excess liquid expressed between rollers and, in the case of the quaternary ammonium salt, baked, washed in soap solution and dried. In the case of the wax dispersion the fabric is only dried. The fabric so treated is heavily calendered at above 80 ‹C. on both back and face. In a modification, the nylon fabric is calendered before being treated in an emulsion of the wax, e.g., that known under the registered Trade Mark Dipsanil V, and dried. The fabrics are used for umbrella covers, lightweight weatherproof garments and splashproof curtains. Suitable waxes include the paraffin waxes for which benzene and volatile paraffins are suitable solvents. Specifications 466,817, 477,991. 493,920, 495,025, 497,856, 498,287, 517,474, 517,631, 517,632 and 538,897 are referred to.
Patent GB-561009-A (GB)
Title: Improvements relating to oil cans
IPC: F16N3/04
Filed: 1943-02-27
Abstract: 561,009. Oil cans. NELSON, Ltd., J., and GRAHAM, W. Feb. 27, 1943, No. 3230. [Class 66] The spout of an oil can for lubricating loom picker and other spindles or shafts is formed with a grooved end D corresponding to the curvature of the spindle C and is provided with a spring- pressed ball or plunger E normally closing an aperture F but opened to allow oil to flow when the spout end is drawn along the spindle.
Patent GB-142568-A (GB)
Title: Improvements in or relating to reinforced concrete vessels
IPC: B63B5/14
Filed: 1919-02-10
Abstract: 142,568. Stewart, W. J., and Woolcock, J. Feb. 10, 1919. Concrete vessels. - Relates to the construction of the fairing and attachment of the shuttering used in affixing the skins of reinforcedconcrete ships. After the transverse frames and the longitudinals have been set up, longitudinal fairing battens are arranged in pairs d<1>, d<2>, spaced equidistantly up the sides and are carried by tie-rods secured to the transverse frames and passing between the pairs of battens, against which the tie-rods are pressed by nuts f and block e. In the event of the battens requiring support between the tie-rods of adjacent frames, longitudinal tension rods k are attached to winged washers m and press against the fairing battens through the medium of thrust bolts n, which may be adjusted by a tommy. The shuttering h is arranged in a succession of bands between adjacent horizontal fairing battens, and the shell reinforcement faired to the battens connected to the frames enables the .shell walls to be built up in longitudinal belts of convenient width. A construction of the foundation and supporting- means is described applicable for use in connexion with the struts described in Specification 141,834.