baber/WOPTO huggingface dataset:
Patent GB-983164-A (GB)
Title: Sealing system for rotary piston machines
IPC: F01C19/10
Filed: 1962-03-20
Abstract: 983,164. Rotary compressors and I.C. engines. NSU MOTORENWERKE A.G., and WANKEL G.m.b.H. March 20, 1962 [March 25, 1961], No. 10559/62. Heading F1F. In a compressor or internal combustion engine of the n, n+ lobes type, having an outwardly slidable sealing strip 3 in a groove in each apex of the rotor 1, means are provided to prevent the strip contacting the end walls of the casing. A cylindrical insert 5, against which end face sealing strips 8 abut, is fitted at each end of the groove, and an inward projection 10 of the strip (Fig. 4) engages the insert. A further sealing member 18, located in a slot at each end of the strip 3 seals the ends of the groove. Alternatively (see Fig. 2, not shown, and Fig. 1), outward extensions 24 of the insert 5 may be provided. As a further alternative (Fig. 6) a U-shaped member 20 may be fitted in the groove, the legs 21 contacting opposite end walls of the casing at operating temperature. In a modification (Fig. 3, not shown) the projection 10 is replaced by an element slidably mounted in the insert S and co-operating with a recess in the strip 3. In another embodiment (Fig. 8) the end faces 9<SP>1</SP> of the strip are bevelled inwardly in the direction of movement P, and fluid pressure maintains the ends away from the end walls 6. Specifications 866,307 and 892,476 are referred to.
Patent GB-105785-A (GB)
IPC: F41H1/00
Abstract: 105,785. Hunt, F. C. Nov. 11, 1916. Body-armour.-In a shield having a depending flap, the flap consists of a number ot metal plates 2, 3, 4, 5 joined together by resilient strips 7 secured to the plates by rivets 8 or equivalent means. The flap is attached to the shield 1, which is of any known kind, by any suitable flexible means such as by leather strips 9 riveted to the plates. Specification 11012/15 is referred to.
Patent GB-309187-A (GB)
Title: Improvements in and relating to thermionic or like amplifying systems
IPC: H01F19/04
Filed: 1929-04-05
Abstract: 309,187. British Thomson-Houston Co., Ltd., (Assignees of Bradbury, B.). April 7, 1928, [Convention date]. Thermionic amplifiers.-In order to secure a high degree of amplification that is substantially uniform over a wide range of frequencies, the aperiodic output circuit of a high-impedance screened grid amplifier 1 is transformer-coupled to the tuned input 10 of a succeeding valve, the coupling-transformer 9 having a one-to-one ratio, or having a greater number of turns in the primary than in the secondary so as to secure a high plate-circuit impedance. The primary and secondary windings are closely coupled, one being wound over the other so that the adjacent ends of both windings are at the same potential with respect to ground. The windings are separated by such an extent that the combined capacity and magnetic coupling gives a substantially uniform voltage amplification over the whole frequency range to which the set is tunable. Preferably the primary and secondary are wound in opposite directions so that the capacity coupling is in opposite phase with the magnetic coupling. As shown the screened grid amplifier 1 feeds a detector valve 2 back-coupled through a circuit comprising a variable choke and followed by two low-frequency stages 3, 4. The various circuits may be separated by grounded screens. A variable resistance 22 in the filament circuit serves to control volume.
Patent GB-377147-A (GB)
Title: Improvements in cigarettes
IPC: A24D3/00
Filed: 1931-04-28
Abstract: 377,147. Cigarettes. MOLINS, D. W., Longwood, Hurst Road, Bexley, Kent. April 28, 1931, No. 10688/32. Divided on 373,745. [Class 130.] A cigarette is formed with tobacco portions 2, 3 at each end separated by a space 4. A paper tube 5 may be placed in the space to reinforce the cigarette, and the tube may be filled with a wad of paper or absorbent material. Specification 373,74Fi is referred to.
Patent GB-1063364-A (GB)
Title: Oxazine compounds and the preparation thereof
IPC: C23F11/14
Filed: 1964-03-13
Abstract: The invention comprises compounds of the general formula <FORM:1063364/C2/1> in which R represents an aliphatic or aryl radical containing from 6 to 24 carbon atoms or an alkyl aryl radical containing from 7 to 24 carbon atoms, and the preparation thereof by reacting monoethanolamine and chloroacetic acid, which is preferably in excess, in an alkaline medium, and condensing the product with the appropriate carboxylic acid halide at pH 9-12, acidifying the reaction mixture, and isolating the reaction product.
Patent GB-914486-A (GB)
Title: Method of and apparatus for sensing the orientation of fine mesh material
Inventor: STRANG JOHN MARTIN
IPC: D06H3/12
Filed: 1960-03-26
Abstract: 914,486. Guiding webs transversely. BARR & STROUD Ltd. March 6, 1961 [March 26, 1960], No. 10778/60. Class 100 (1). [Also in Groups XXXV and XL (b)] Orientation variations in a web of mesh material are corrected by sensing photo-electrically a diffraction pattern formed by transmission of light through the mesh and using the output to control a differential gear 51 in a shaft driving stenter chains 52. The shaft is driven by a further shaft 53 through differential gearing 55.
Patent GB-719575-A (GB)
Title: Improvements in and relating to fenders for ships, buoys, harbour quays and the like
IPC: E02B3/26
Filed: 1952-04-30
Abstract: 719,575. Fenders. PIRELLI SOC. PER AZIONI. April 30, 1952 [April 30, 1951], No. 10916/52. Class 113(1) In a fender comprising a strong and comparatively thin flexible covering 1, deformable yielding core 2 inside of the covering, said core offering little resistance to squeezing while being resilient enough to bring said covering to its original shape after it has been flattened, and a nozzle connected to the covering at 3 for the restricted passage of air outwards from the inside thereof, a suspension cable 10 penetrates into the covering through the air passage nozzle and is anchored to the covering at the point 13 opposite to the nozzle.
Patent GB-674178-A (GB)
Title: Improvements in or relating to the emulsion polymerization of unsaturated organic compounds
IPC: C08F2/26
Filed: 1949-04-25
Abstract: Polymerizable organic compounds are polymerized in aqueous emulsion using a soluble oleocetyl sulphate as emulsifying agent. The sulphate is obtained by sulphating the C16-C18 fraction of the alcohols produced by the hydrogenation of coconut or sperm oil and then neutralizing with alkali.  The sodium, potassium and ammonium salts are specified.  Examples of polymerizable compounds are vinyl chloride, vinyl acetate, styrene and other olefines and diolefines, and these may be polymerized alone or with each other.  The oleocetyl sulphates are stated to produce little foam, to have high chemical and thermal stability and to be active at pH values between 2 and 7. In examples, other ingredients used in the polymerization include acetaldehyde, paraldehyde and propionaldehyde as molecular weight regulators; methyl cellulose, ethyl cellulose and polyvinyl alcohol as protective colloids; and potassium persulphate, hydrogen peroxide, ammonium persulphate, perborates, percarbonates and benzoyl peroxide as catalysts.
Patent GB-561209-A (GB)
Title: Improvements relating to television
IPC: H04N11/18
Filed: 1942-08-05
Abstract: 561,209. Television ; multiplex wireless signalling. BRITISH THOMSONHOUSTON CO., Ltd. (General Electric Co.). Aug. 5, 1942, No. 10946. [Classes 40 (iii) and 40 (v)] A television system for the transmission of more than two colour images over a single channel comprises two separate synchronized means for generating image signals, one generating signals representative of one colour component and the other generating signals of the other colour components, and means for modulating the two signals on a common main carrier wave by different ones of two types of modulation, namely one by frequency or phase modulation and the other by amplitude modulation. The modulation of the main carrier is effected directly by both signals ; or one signal is modulated directly on the main carrier in accordance with one type of modulation and the other signal is first modulated on a subcarrier wave which is then modulated on the main carrier in accordance with the other type of modulation. In the arrangement shown, one signal is generated by scanning the picture 10, Fig. 1, in one colour, through a green filter 15 by a camera 12, and the other signal is generated by an interlaced scanning in two colours, through a rotating red and blue filter 14 by a camera 11. The signals from the camera 11 are mixed in a mixer 32 with blanking signals from a pulse generator 18 and are fed to a frequency modulator 43 for a high-frequency oscillation generator 44. The signals from the other camera 12 are mixed in a mixer 30 with synchronizing signals and blanking signals derived from the pulse generator 18 and are fed to an amplitude modulator 41 for the highfrequency oscillation generator 44. The doubly modulated carrier is amplified by an amplifier 45 and radiated by an antenna 13. At the receiver, Fig. 3, the two modulations are separated. The amplitude modulations control the deflection generators 93, 94 and a cathoderay image reproducer 77. The frequency modulations corresponding to the interlaced scanning control cathode-ray image reproducers 75, 76 keyed in mixers 80, 81 by keying pulses derived from the synchronizing pulses. The three cathode-ray tubes are observed by an eye 102 through semi-transparent mirrors 100, 101. In a modified receiver, the three cathoderay tubes are substantially side by side and lenses project and combine their images on one screen. Specification 424,743 is referred to.
Patent GB-1390740-A (GB)
Title: Air-cushion vehicle
IPC: B60V1/16
Filed: 1973-03-07
Abstract: 1390740 Air-cushion vehicle C PAOLI 7 March 1973 [10 March 1972] 10991/73 Heading B7K An air-cushion vehicle has a peripheral skirt comprising two parallel walls 70, 80 interconnected by cables 82 and defining a chamber beneath chassis structure L at least one inner skirt further dividing said chamber, and also comprising two parallel walls, and suspension means 95 spaced along the skirts to connect them to the structure L and to urge them towards it. The wall 70 of the peripheral skirt is connected directly to the structure L while the wall 80 is suspended at 83 by cables 81. The cables 82 radiate from the point 83 to pass through holes in the wall 70 and terminate in loops 84 through which cables 85 pass. The lower edges of the walls are connected by lacing to form a gap 89 for drainage. The suspension means 95 comprises articulated arms forming with the structure L a hexagon with opposite sides connected by a tension spring (107), Fig. 2a (not shown); alternatively, Fig. 3 (not shown), the point 83 may be located at the end of a bar (110) articulated to the structure L at (112) and connected to the structure by a resilient cable (111). The walls (150) (151) of the inner skirts, Fig. 4 (not shown), are suspended from the chassis structure by cables (156) and articulated suspension means (120), and each is further supported by cables (157) radiating from a point near the upper edge of the other wall.
Patent GB-1254651-A (GB)
Title: A drop-down barrel air gun
Inventor: POMMIER PIERRE
IPC: F41B11/55
Filed: 1970-03-06
Abstract: 1,254,651. Air guns. P. POMMIER, and J. DESVEAUD. 6 March, 1970, No. 10999/70 Heading F3C.  A folding barrel air gun comprises a transversely slidable element 1 having a breech aperture 2 which is chamfered at its upper end, the aperture receiving a projectile fed from a magazine 6 when the air gun is broken and the slide raised. The slidable element 1 is raised by its co-operation with a thruster heel 11 and urged to its firing position by a thruster member 9.
Patent GB-542174-A (GB)
Title: Improvements relating to electrical connections for vacuum-tube apparatus
IPC: H01R35/04
Filed: 1940-06-28
Abstract: 542,174. Two-part couglings. STANDARD TELEPHONES & CABLES, Ltd., and SMYTH, C. N. June 28, 1940, No. 11001. [Class 38 (i)] A socket member S for receiving a valve pin or lead-in wire P of a vacuum tube is adjustably connected to a supply conductor R by means of a ball and socket joint. The socket member S and the conductor R may both be formed with recesses L to co-operate with balls K formed on an intermediate piece J. Springs C force the balls into contact with the constricted rim of the recesses. If only one ball joint is required; either the socket member S or the conductor R is turned with a ball that fits within a recess on the other member. Specification 449,655, [Group XL], is referred to.
Patent GB-551753-A (GB)
Title: Improvements in or relating to the preparation of anaesthetic compounds
Filed: 1941-08-30
Abstract: 551,753. Aminobenzoic acid alkamine esters. STEVENS, A. H. (Novocol Chemical Manufacturing Co., Inc.). Aug. 30, 1941, No. 11114. Samples furnished. [Class 2 (iii)] Alkamine esters of aminobenzoic acids having anaesthetic properties are prepared by reducing the re-action products of a nitrobenzoyl halide with a substituted amino-alcohol of the formula OH.CHR<SP>1</SP>.CR<SP>2</SP>R<SP>3</SP>.NHR<SP>4</SP>, in which R<SP>1</SP> and R<SP>2</SP> are both hydrogen or one is an alkyl group and the other hydrogen, R <SP>3</SP> is an alkyl group and R4 is an alkyl group containing not more than ten carbon atoms. According to the examples, (1) #-ethylamino - # : # - dimethylethyl - p - - amino - benzoate is prepared by treating #-ethylamino- # : #-dimethylethanol with p-nitrobenzoyl chloride in caustic soda solution and reducing the nitro-ester formed with iron filings and hydrochloric acid ; products are similarly prepared in which the substituent in the #-amino group is n-propyl, isopropyl, n-butyl, isobutyl, secbutyl, n-amyl, isoamyl, n-hexyl, #-ethylbutyl, n-heptyl, α-methylheptyl, #-ethylhexyl and n-decyl instead of ethyl ; (2) #-n-butylamino- # : #-dimethylethyl-o- and m-aminobenzoates by the method of (1) using o- and m-nitrobenzoyl chlorides ; (3) n- and iso-amylamino-#- methylethyl-p-aminobenzoates by using #-n-and iso-amylamino-#-methylethanols in method (1) ; (4) # - n butylamino - α : # - dimethylethyl - p-aminobenzoate from p-nitrobenzoyl chloride and #-n-buty1amino-α : #-dimethylethanol by method (1) ; products containing an-amyl and isoamyl substituent in the #-amino group are similarly obtained. Samples have been furnished under Sect. 2 (5) of #-ethylamino- #-ethylethyl-p-aminobenzoate formate and #-(α-methylheptyl)-amino-#-ethylethyl-p-aminobenzoate hydrochloride, prepared from p-nitrobenzoyl chloride and the appropriately substituted amino-alcohol. The above substituted amino-alcohols are, obtained by re-acting the unsubstituted aminoalcohol with an alkyl halide, whereby the alkyl substituent enters the amino group.
Patent GB-246703-A (GB)
Title: Improvements in and relating to spring suspension for motor vehicles
IPC: B60G11/107
Filed: 1925-04-29
Abstract: 246,703. Imray, O. Y., (International Motor Co.). April 29, 1025. Springs, arrangement of.-A spring suspension for dual axles of motor vehicles comprises springs connected to the chassis frame and to the respective axles with yielding non-metallic connections for the springs interposed at points in the suspension between the axles and frame so as to afford a degree of universal movement of the axles relatively to the frame. As shown, the axles b, c are provided with housings h, i carrying yielding non-metallic connections h<1>, i<1> of the type described in Specification 188,529, [Class 108 (iii), Springs &c.], which engage the free ends of cantilever springs f. g secured at their root ends to the frame a. The housings h, i also carry other yielding connections h<4>, i<4> situated beneath the axles and engaging the ends of an additional spring k which is mounted between non-metallic cushions m, n carried by a bracket l on the frame.
Patent GB-326380-A (GB)
Title: Improvements in presses for stamping sheet metal and the like
IPC: B21D24/08
Filed: 1929-04-11
Abstract: 326,380. Huntley, Boorne, & Stevens, Ltd., and Brown, W. L. April 11, 1929. Stamping.-In a press for stamping sheet metal with movable die 1 the fixed die 2 is provided with fluid pressure buffers 3 secured by rods 5 to a dashpot cylinder 8 which on being forced down transfers oil, water, glycerine, &c., from above to below the piston 9 through the channel 13, the rate of transfer being regulated by a hand set valve 17, and when the cylinder is returned to position by spring 16 the oil passes through ports 14 and a non-return flap valve 15. The valve 17 is provided with an axial spring to allow axial movement to increase the passage and so absorb the first sudden shock of working.
Patent GB-1507853-A (GB)
Title: Device for holding a door in an open position
IPC: E05C17/20
Filed: 1975-03-18
Abstract: 1507853 Door holding device ED SCHARWACHTER KG 18 March 1975 [18 March 1974] 11209/75 Heading E2A A device for holding a door open at predetermined positions comprises an elongate member 5 pivotally attached at 7 to the door 1, which member moves into and out of a housing (defined by a channel 10) as the door is closed and opened; the member having arcuate cutouts 22, 23 engaging a roller - carrying limb 20 of an S - spring and defining the predetermined positions. A roller 15 on the member 5 assists movement thereof.
Patent GB-768780-A (GB)
Title: Method and apparatus for bending glass
IPC: C03B23/025
Filed: 1955-04-19
Abstract: 768,780. Bending glass. LIBBEY-OWENSFORD GLASS CO. April 19, 1955 [Aug. 20, 1954], No. 11218/55. Class 56 In the bending of glass sheets 21 by supporting them on shaping moulds M on which they are passed through a furnace 12. different portions of the sheets are shielded from the heat to different extents and.at different times during their passage through the furnace. In general those portions of the sheet that are not to be bent so much as others are more heavily shielded than those to be given more severe bends. As shown, the shields 24 comprise plates with serrated edges and of different sizes suspended in desired positions from transverse bars 28 which are adjustably supported, as to height, from the roof of the furnace.
Patent GB-1141694-A (GB)
Title: Seat construction
IPC: A47C7/18
Filed: 1966-03-15
Abstract: 1,141,694. Upholstered seats. INTERNATIONAL HARVESTER CO. 15 March, 1966 [14 April, 1965], No. 11256/66. Heading A4M. A seat construction includes upholstered seat and back portion each comprising a foamed rubber or plastics pad 14 supported on a rigid metal base plate 13, the pad being formed with cylindrical recesses 17 which open towards the base plate 13 to communicate with small apertures 24 in the base plate 13 and including upper openings 19 each extending from a recess 17 to the seat surface, and the area of the opening 19 associated with each recess 17 being greater than the total area of the apertures 24 associated with that recess. In use, the apertures 24 and the opening 19 act respectively as air inlets and outlets for the recesses 17 so that the cushion acts as a pump when subjected to compression by the user whereby air is forced from the recesses 17 to pass through the openings 19 to the seat surface.
Patent GB-977649-A (GB)
Title: Improved adsorbent for plate chromatography
IPC: B01J20/10
Filed: 1963-03-21
Abstract: An adsorbent for chromatography has a basis of silica gel, kieselguhr, diatomaceous earth, or alumina, and contains 2-30%, preferably 3-10%, of SiO2 of particle size 3-50 mm , and with surface area, e.g. of 150-400 m2/gm. Silica gel used may have a pore diameter of 35-50<\>rA, a surface area of 800-300 m2/gm. and a pore volume of 0.4-0.9 c.c./gm.  UV luminescent materials, e.g. magnesium tungstate, or zinc silicate activated with manganese, may also be added.  The adsorbent is suitable for preparative plate chromatography, or analytical thin layer chromatography, using layers of thickness 0.5-4 mm., or up to 500m  respectively.ALSO:An adsorbent for chromatography has a basis of silica gel, kieselguhr, diatomaceous earth, or alumina, and contains 2-30%, preferably 3-10%, of SiO2 of particle size 3-50 mm., and with surface area e.g. of 150-400 m.2/gm.  Silica gel used may have a pore diameter of 35-50 , a surface area of 800-300 m.2/gm., and a pore volume of 0,4-0,9 c.c./gm.  U/V luminescent materials, e.g. magnesium tungstate, or zinc silicate activated with manganese, may also be added.  The adsorbent is suitable for preparative plate chromatography, or analytical thin layer chromatography, using layers of thickness 0,5-4 mm., or up to 500<\>u respectively.
Patent GB-896847-A (GB)
Title: Improvements in and relating to vent valves
Inventor: GARDNER RONALD THEODORE
IPC: B64D37/00
Filed: 1958-04-09
Abstract: 896,847. Valves. ENGLISH ELECTRIC CO. Ltd. April 9, 1959 [April 9, 1958], No. 11313/58. Class 135. A valve for venting an airborne fuel tank at a predetermined absolute pressure comprises a resilient bellows B of effective area equal to the area inside a seat 3 for the closure member A and sealed to the closure member and to a housing D which is sealed to the body 1 by a ring 5 and is adjustably positioned by a screwed sleeve 4. The space enclosed by the bellows, closure member and housing D contains a loading spring C and is evacuated to eliminate variations of pressure due to temperature changes.
Patent GB-785027-A (GB)
Title: Improvements in or relating to high frequency current supply arrangements for use intelecommunication systems
Inventor: BOURA JOHN
IPC: H04J1/06
Filed: 1954-04-20
Abstract: 785,027. Multiplex systems. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. April 19, 1955 [April 20, 1954], No. 11396/54. Class 40 (4). [Also in Group XL (c)] In an arrangement for supplying carrier current to a telecommunication system, duplicate sources OA, OB, Fig. 1, which develop identical series of frequencies a-e through harmonic generators HGA, HGB are each arranged normally to supply some of the frequencies the outputs from the two sources being applied to electronic switches EA, EB which determine which source shall supply a particular frequency to the load, and provide for change-over on failure. Dual-path amplifiers DP<SP>1</SP>-DP<SP>5</SP> of the type described in Specification 732,567, [Group XL (c)], have means therein for generating a control pulse whereby the change-over is effected. The relative potentials existing at terminals A<SP>1</SP>, B<SP>1</SP>, in the control circuit, Fig. 2, control the rectifier networks w<SP>1</SP>-w<SP>8</SP> in the two supply paths to open one and close the other. Tubes V<SP>1</SP> and V<SP>2</SP> which determine the potential at A<SP>1</SP> B<SP>1</SP> are both fired by a pulse over lead P from amplifier CSA and the polarity of the potential is thereby reversed. Relay RA is operated over valve V<SP>1</SP> to establish the reversed polarity over a permanent circuit and the valves are then extinguished. A cold cathode tube V<SP>3</SP> provides a visual alarm and a restore key K<SP>2</SP> enables a stepped return to the normal supply when the fault has been cleared. Change-over may be effected manually by a key K<SP>1</SP>.