baber/WOPTO huggingface dataset:
Patent GB-847353-A (GB)
Title: Apparatus for dispensing liquid under pressure
IPC: B67D1/04
Filed: 1956-06-26
Abstract: 847,353. Dispensing liquids by gaseous pressure. SANKEY & SONS Ltd., J., and BARNES, A. R. T. June 25, 1957 [June 26, 1956], No. 19798/56. Class 102(2). [Also in Group XXIX] A pressure reservoir 53 and a reducing valve 24 for supplying pressurising gas to a liquid container 11, are secured to the container wall 12 by means of a bayonet type coupling . In a modification, the reducing valve and reservoir are secured to the top of the container and the coupling forms a gas connection between the reducing valve and the container and includes a valve of the type described in Specifications 449,764 and 670,977. A gas stop valve 72 is included on the reducing valve. Specifications 685,858, 847,351 and 847,352 also are referred to.
Patent GB-1113226-A (GB)
Title: Sealing rings
Inventor: WITCOMBE JOHN CHARLES
IPC: F16J15/32
Filed: 1966-05-04
Abstract: 1,113,226. Oil seals. MORGANITE CARBON Ltd. 28 April, 1967 [4 May, 1966], No. 19800/66. Heading F2B. An oil sealing ring 1 of resilient self-lubricating material for a reciprocable shaft 11 has a sealing edge 5 at the intersection of a frustoconical leading surface 2 having a half-angle α of from 65 to 80 degrees and a frusto-conical inner surface having a half-angle of from 6 to 9 degrees, the resilience of the ring material being such that when the ring is positioned on a shaft having a diameter z of from 0À008 to 0À016 inch greater than the diameter x of the sealing edge 5, the inner surface 4 adjacent the edge 5 contacts the shaft over an axial distance of from 0À004 to 0À015 inch. The ring may be of P.T.F.E. combined with carbon and/or graphite and the angles a and # are suitably substantially 75 degrees and substantially 7¢ degrees respectively. A frusto-conical spring steel washer 9 abuts the surface 2 of the ring and is retained therewith in a housing by a cap 8.
Patent GB-744973-A (GB)
Title: Means for protecting power supply conduits, or cables, connected to vehicles
IPC: E21F17/04
Filed: 1951-08-22
Abstract: 744.973. Retractive switches. MAVOR & COULSON. Ltd., and TOWLER. J. M. May 8. 1953 (Aug. 22, 1951], No. 19833/51. Class 38(5) [Also in Groups XXIX and XXX] In a vehicle having its traction power supplied through a trailing conduit 4, the power being electrical, pneumatic, or as shown hydraulic, means for disconnecting the power when the conduit is subjected to excessive tension comprises a member 12 movable to cut off the power against the action of a spring 14, and a pull-transmitter 7 between the member 12 and a part of the conduit 4. As shown the invention is applied to a coal-cutting machine 1 operated on a coal face F, the machine carrying hydraulic propulsion means of the ram motor type. The conduit 4 as shown comprises an internal high pressure pipe 3 and an external return pipe, the conduit being connected through a cut-off valve 8 to a main control valve 11 on the machine and the valve 8 housing the member 12. Secured by a clamp 5 to the conduit 4 is a lug 6 to which is pivoted the member 7 shown as a link. Excessive tension in a remote portion of the conduit causes the pipe 3 to be cut off from the valve 11. In modifications (1) the member 7 may be replaced by a chain or rope, (2) the link 7 may operate the valve spindle in the reverse direction through a flexible connection passing around a guide pulley or through a lever- and-link mechanism, and (3) the member 12 may connect the high pressure pipe 3 to the return pipe to by-pass the main valve. When the power supplied is electrical excessive tension in the conduit operates a switch.
Patent GB-357279-A (GB)
Title: Improvements in and relating to the construction of road pavements
IPC: E01C7/32
Filed: 1930-06-30
Abstract: 357,279. Road making. MACKENZIE, L. R., 541, 44th Street, Des Moines, Iowa, U.S.A. June 30, 1930, No. 19882. [Classes 20 (iv) and 107.] A method of making roads consists in forming grooves in a foundation layer of concrete by placing ribbed platforms thereon before the concrete has set and subjecting the platforms to pressure and repeated downward impacts by means of a travelling vibrator, and in applying and compressing a top layer of asphaltic material when the concrete has set. As shown, the concrete base 10 of a road is formed with a number of parallel grooves 26 and cross grooves 28. These grooves are formed by ribs provided on the underside of platform units 12. Each platform unit comprises a plurality of stringers 15 spaced apart but so arranged as to permit the free travel thereon of an impact machine A. This machine comprises a frame 30 mounted on rollers or wheels 32 and carrying an internal-combustion engine 34. The piston and/or the connecting-rod of the engine is weighted whereby substantially vertical impacts are delivered to the platforms. A throttle control 46 for the engine is disposed near the handles 44 of the machine. The lower surface of each platform unit is provided with a corrugated metallic plate 16, the ribs 17 of which run obliquely across the plate. Longitudinally-extending ribs may also be provided for forming the grooves 28. Surplus air and water escape from the concrete during compression through holes 48. When the concrete has set, the surface of the road is treated with a layer of asphaltic material. This layer is compressed into the grooves either by rolling or by using an impact machine A in conjunction with modified platform units.
Patent GB-524550-A (GB)
Title: Wide band amplifier sytems for electrical carrier-wave signals
IPC: H03F1/20
Filed: 1939-07-07
Abstract: 524,550. Impedance networks ; thermionic generating and modulating circuits. HAZELTINE CORPORATION. July'7, 1939, No. 19898. Convention date, Aug. 16, 1938. [Classes 40 (iii) and 40 (v)] In a wide-band inter-valve coupling for modulated carrier frequencies, in which deadend filters of the kind described in Specifications 524,547, 524,548, 524,549 are used, the dissipation of energy in the dead-end resistance is reduced by arranging that the carrier signals shall traverse a portion of the coupling having a band-pass characteristic of corresponding frequency range, while the dead-end or inactive portions of the coupling are such as to attenuate the signals before they reach the terminating resistance at the dead end. In the band-pass coupling shown in Fig. 1a, the input valve 10 is coupled to the output valve 13 through a network which includes active portions A, B, through which the signals pass, and dead-end portions C, D in which they are attenuated before reaching the dead-end resistances 24, 37, together with one or both of two valves 11, 12, connected at different points of the network to provide two parallel paths for the signals. The networks resemble those described in the Specification referred to above, but transformer couplings are in some cases substituted for inductances, as shown. The phase-shift per section at the mid-band frequency is #/2, so that the waves reaching resistance 37 via valve 11 and valve 12 respectively differ in phase by n and tend to cancel out, to an extent limited by reflection from the end 39 which has a high-impedance termination. The location of the carrier frequency may be located elsewhere than at the mid-band, so as to secure maximum cancellation as determined by the phase-frequency characteristic. It may, in single-sideband transmission, be located near the edge of the pass-band, where the dead-end resistance (such as 37) is in series with high reactance or in shunt with a low reactance. In a modification, Fig. 2a (not shown), the lower portions A, C of the network have low-pass characteristics and only the carrier is fed to valve 10, while a modulating signal is superimposed on it in the grid-circuits of valves 11, 12 which then act as modulators. The low-pass band-width is equal to the high-pass band-width for single-sideband transmission, Fig. 2c (not shown), but only half the low-pass band is used in double-sideband transmission, Fig. 2d (not shown). In a further modification, Fig. 3 (not shown in full) for use as a power amplifier in a transmitter, each of the valves 11, 12 is replaced by a pair of valves coupled through networks having deadend filters, the second of each such pair of valves being a power valve, and the final valve 13 is replaced by the network E, which matches the impedance of a uniform transmission line. A push-pull amplifier may be similarly designed. The valves employed in the above circuits have anode resistances high in proportion to the impedances of the networks, to minimize the signal voltage output from the valves.
Patent GB-596768-A (GB)
Title: Improvements in and relating to polysiloxane resin compositions
Filed: 1945-08-03
Abstract: An organo-polysiloxane resin, e.g. as described in Specifications 542,655 and 548,911, is cured by heating with lead monoxide.  A methyl silicone resin obtained by hydrolysis and condensation of a mixture of methyl silicon chloride and silicon tetrachloride followed by refluxing a toluene solution of the condensation product in presence of small amounts of antimony pentachloride and ferric chloride hexahydrate (see Specification 585,628) yielded films which cured to a solid insoluble state when heated for 10 hours at 300 DEG C.  The addition of 5-60 parts by weight of litharge to 100 parts of this resin gave a product which cured to the same degree in 3 hours at 200 DEG  C.  Thick sections of lead oxide-resin mixtures set to a soft, spongy, rubbery state in a few hours at room temperature.  The spongy product becomes hard, dense and resilient on heating at 300 DEG  C. for 4 hours.  It is suitable for gaskets.  Films of the lead monoxide modified resins may be used as such or on carriers of aluminium foil, glass film sheets or paper as capacitor dielectrics. The resins need not be treated with metal halides.  Suitable resins are methyl, ethyl, ethyl phenyl, methyl phenyl, phenyl, tolyl, benzyl or methyl ethyl polysiloxanes containing 1 to 2, preferably 1.3-1.7 hydrocarbon groups per silicon atom.  Fillers may be incorporated, e.g. double or ternary metal titanates, e.g. titanates of magnesium, calcium, barium, strontium, lead or vanadium.  Excess litharge also acts as a filler.
Patent GB-1278558-A (GB)
Title: PROCESS FOR THE PREPARATION OF L-beta-(3,4-DIHYDROXYPHENYL)-alpha-ALANINE BY FERMENTATION
Inventor: FLORENT JEAN
IPC: C12P13/22
Filed: 1971-04-19
Abstract: 1278558 L-Dopa RHONE-POULENC SA 19 April 1971 [21 Jan 1970] 20065/71 Heading C2C L - p - (3,4 - Dihydroxyphenyl) - α - alanine is prepared by microbiological action of Vibro tyrosinaticus ATCC 19,378 or an L-Dopa producing mutant thereof in an aerated aqueous nutrient medium containing L-tyrosine at a temperature of 22 to 37 C. and preferably the nutrient medium contains ascorbic acid, a copper salt and an antioxidant. The L-Dopa may be separated from the culture medium by acidification, filtration, passing over a sulphonate ion exchange resin, eluting the L-Dopa from the resin and treating the eluted solution with ethylenediamine, tetraacetic acid in presence of alumina and eluting the L-Dopa from the separated alumina with oxalic acid.
Patent GB-837459-A (GB)
Title: Improved article-directing means, particularly for use with bakery dough-pieces
IPC: A21C9/08
Filed: 1957-06-26
Abstract: 837,459. Deflecting falling lumps of dough. BAKER & SONS Ltd., T., PARRY, J. H., and COXON, G. L. June 25, 1958 [June 26, 1957], No. 20087/57. Class 78 (1). A deflector element 10 pivoted at 11 (Fig. 1) deflects dough lumps alternately left and right as they fall down shoot 12, the element swinging between end stops 15, and rebound of the lump is prevented by catches 22. The catches are released when the reset lump hits gates 19. Trigger mechanism (Fig. 4).-Pivoted gate 19 is connected to pivoted catch 22 by hook 31 and pawl 27, both the latter being pivoted at 28 and connected to move together by spring 29. Normally, the spring-urged pawl 27 engages shoulder 26 of catch 22 so that the apex 24 of the catch retains the element 10 to prevent rebound. However, when the next lump falls (it strikes both gates 19 simultaneously) gate 19 swings downwards to cause the finger 32 thereof to engage and rides past hook 31 so that the latter causes a pawl 27 to be flicked past shoulder 26. Thus element 10 is then freed to divert and to be swung by the following lump. Specification 805,202 is referred to.
Patent GB-639708-A (GB)
Title: An improved clothes peg or the like
IPC: D06F55/00
Filed: 1948-07-28
Abstract: 639,708. Clothes pegs. BLACKFRIARS RUBBER CO., Ltd., and MURPHY, J. July 28, 1948, No. 20098. [Class 44] A rubber clothes peg comprising a bifurcated body A whose limbs B are adapted to grip a clothes line is provided with a pair of upwardly divergent portions F, the outer ends of which are joined by a cross bar G. On either pressing the portions F together by means of the roughened or serrated faces H or by gripping the side faces of the cross bar G and pulling outwardly, the peg is similarly deformed in each case and the jaws B are opened. The cross bar G, which is of constant width is shaped as an inverted V or shallow arch the opening E being correspondingly diamond-shaped or elliptical. Pronounced comers are formed at the junctions of the inner faces of the limbs with the periphery of a hole C which terminates the bifurcation. In a modification the limbs B have transversely ribbed faces and the ribs on opposite faces may mate with one another. For convenience of handling, a number of pegs may be joined by an easily severed web, which is formed during moulding or when cutting the pegs from an extruded length of rubber.
Patent GB-317197-A (GB)
Title: Improvements in or relating to cigarette packing machinery
IPC: B65B19/02
Filed: 1928-07-11
Abstract: 317,197. Molins, W. E. July 11, 1928. Sheet - separators. - In a machine for making cartons, the blanks 7 are fed from a pile in a magazine 8,'Fig. 3, by a needle pad 10 reciprocated by an eccentric 10<a>, into the grip of feed rollers 11, 12, which forward it to rollers 13, 14 adapted to co-operate with folding mechanism.
Patent GB-1351623-A (GB)
Title: Process and apparatus for separating spent catalyst particles form vapours
IPC: C10G11/18
Filed: 1971-04-19
Abstract: 1351623 Catalyst regeneration; cyclone separator STANDARD OIL CO 19 April 1971 [26 Jan 1970] 3331/73 Headings B1F and B2P A process for the separation of spent catalyst from petroleum vapours in the effluent of conversion reactor 10 comprises passing the catalyst/effluent mixture via inlet 12 into cyclone 13, there being an annular space defined between the inlet 12 and flared throat 15 through which space stripped gases from stripper 14 are drawn.
Patent GB-1514722-A (GB)
Title: Method and apparatus for the production of inert gas
IPC: C01B32/50
Filed: 1975-05-14
Abstract: 1514722 Production of inert gas SMIT NIJMEGEN BV 14 May 1975 [17 May 1974 26 Sept 1974] 20394/75 Heading B1L [Also in Divisions Fl and F4] In the production of a non-combustible gas mixture comprising a major proportion of nitrogen and carbon dioxide, liquid or gaseous hydrocarbon e.g. from nozzle 20 is burnt with air in a combustion chamber 22, having a cooling jacket 21 and immediately after combustion is subjected to cooling by injection of aqueous liquid at the end of the combustion chamber, e.g. from nozzles 23 leading from cooling jacket 21, followed by cooling by direct scrubbing with aqueous liquid outside the combustion chamber, e.g. from nozzles 10 also fed from cooling jacket 21, or in a second scrubber, Fig. 1, separate from the combustion chamber. The inert gas may then be dried in a parallel arrangement of driers arranged for alternate adsorbtion and regeneration by heated dried gas as shown in Fig. 1.
Patent GB-702888-A (GB)
Title: Flexible, corrugated metal pipe
Inventor: BOYLE WILLIAM CHARLES
IPC: E01F5/00
Filed: 1952-08-13
Abstract: 702,888. Metal pipes. ARMCO INTERNATIONAL CORPORATION. Aug. 13, 1952, No. 20403/52. Class 99 (2). A corrugated metal pipe section 10 substantially semi-elliptical in cross-section has along its edges seating elements so that two like sections in mutually reversed and inverted position may be engaged together to form a pipe substantially elliptical in cross-section. One edge of the section may be plain, and the other may be provided with a series of parallel cuts 13, 14 extending inwardly from the edge, the dovetailshaped portions 15, 16 between the cuts being bent alternately outwardly and inwardly to form seating elements receiving the plain edge of an opposed section. The major and minor axes of the section may be about 5 per cent longer and shorter than the diameter of a circle of equivalent circumference. The top and bottom sections may have overlapped ends 20 and breakjoints as shown, and the sections 10 may be held together by J-bolts 21 engaging in a hole 18 of one section and connected by a nut 26 with a W-shaped piece passing through a hole 17 in the other section; alternatively, a rod-like member which engages in the hole 18 has a portion passed through the hole 17 and bent down.
Patent GB-218139-A (GB)
Title: Improvements in blouses for women's wear
IPC: A41D1/18
Filed: 1923-08-11
Abstract: 218,139. Turin, S. P. Aug. 11, 1923. Blouses.-A blouse is constructed of six square or oblong pieces of material. Two similar pieces a form the front and back of the blouse, the sides being closed by a seam a<1>. Two pieces b constitute shoulder-pieces which are secured to the front and back pieces by seams b and define a neck opening and arm holes. Two sleeve-pieces c are sewn in by seams a<2>, b<2> and are closed by seams c'. Either the neck opening, the sleeves or the lower edge of the blouse, or all these parts, may be gathered and provided with a wide hem or band through which a draw string or tape is passed.
Patent GB-1101046-A (GB)
Title: Picking drum for hop picking machines
IPC: A01D46/02
Filed: 1966-05-09
Abstract: Relates to a picking drum, for a hop-picking machine, equipped peripherally with wire picking fingers, each finger having a head-portion bent into V-shape, the fingers extending obliquely outwardly contrary to the direction of rotation of the drum, and each finger further comprising a pair of parallel arms adjoining the free ends of the limbs of the V, these arms being attached at their radially-inward ends to bands extending longitudinally along the outer periphery of the drum.  According to the invention, the parallel arms are extended into the drum-cavity in a U-shaped loop before being attached to the bands, thereby increasing the length and hence the resilience of each finger.  The fingers may be separate from one another or may be interengaged in the vicinity of the V-shaped heads.
Patent GB-1107392-A (GB)
Title: Improvements in or relating to heterocyclic compounds and the manufacture thereof
IPC: C07H15/16
Filed: 1965-05-14
Abstract: The invention comprises a biracemic mixture of trans - 4 - propyl - L - and - D - hygric acid and cis-4-propyl-L- and -D-hygric acid, trans-4-propyl-D-hygric acid and a biracemic amide mixture of the acids.  The acid mixture is prepared by reacting 4-propylproline with formalin and hydrogenating in the presence of a catalyst, e.g. palladium on charcoal, and is separated by conversion of the acids to amides, chromatically separating the trans and cis racemates, converting to d-camphor sulphonate, separating the distereoisomers by fractional crystallization in a water-ethanol system, treating with a base to obtain the separated amides which are hydrolysed with mineral acids and treated with silver carbonate to yield the free acids.  The acids are buffering and antacid agents and the amides may be converted to alkyl halide quaternary ammonium salts which are electroconductive wetting agents useful in the preparation of electrocardiographic jellies.  The preparation of lincomycin from the 4-propylhygric acid is also described.
Patent GB-877296-A (GB)
Title: Fibrous product
IPC: A61F13/00
Filed: 1958-06-26
Abstract: Absorbent swabs and similar pads are made from carded, crimped staple fibres of regenerated cellulose, arranged substantially parallel, the length of the fibres being at least half an inch, the denier of the fibres being between approximately 1 and 9 and the number of crimps per inch being greater than twenty times the square root of the reciprocal of the denier.  The fibres are formed into a flat web which is then rolled into a ball or cylindrical form, but if it is intended to use the web in the flat p  form it is preferably supported on a backing layer of gauze.
Patent GB-849328-A (GB)
Title: Improved road vehicle steering system
Inventor: BIDWELL JOSEPH BENSON
IPC: B62D5/06
Filed: 1959-06-16
Abstract: 849,328. Steering vehicles. GENERAL MOTORS CORPORATION. June 16, 1959, No. 20593/59. Class 79(5). [Also in Group XXXVIII] A road vehicle steering system has a pickup which produces a signal responsive to the . input steering torque and another which produces a signal responsive to the output steering force and a hydraulic servo system which operates in response to the algebraic sum of the pick-up signals. The steering system (conventional) comprises a steering wheel 22, steering shaft 20, steering gear 24, and pitman arm 26 connected to the wheels 16 and 18 through drag links and tie rods. The pitman arm is connected to the piston of a hydraulic power cylinder 50 operated by a pump 44 in response to a valve 46. A strain gauge bridge 58 is connected to the steering shaft such that strain in the shaft produces a potential difference across the points 60 of polarity and magnitude determined by the applied torque. The signal is applied to an amplifier 62, the output of which is applied to an amplifier 66 and the output of amplifier 66 is applied to a servo amplifier 68 whose output is applied to the valve 46. A second strain gauge bridge 69 is arranged on pitman arm 26 and in response to the output steering force feeds back a signal into a second input of amplifier 66 through an amplifier 72. The amplifier 66 combines the signals from the strain gauge bridges according to the algebraic sums of the signals.
Patent GB-1320465-A (GB)
Title: Anvils for percussion primers
IPC: F42C19/10
Filed: 1971-04-19
Abstract: 1320465 Percussion primers DYNAMIT NOBEL AG 19 April 1971 [31 Jan 1970] 20597/71 Heading F3A An anvil 4<SP>1</SP> for a percussion primer is internally flared and has an exterior surface which is substantially conical over part of its length, is cylindrical at one end, and has an annular surface 7 at its other end. Two or more recesses 10 are provided in its exterior surface and the annular surface 7 is roughened by the provision of radial and/or annular grooves or protuberances 8 and 9. The anvil is fitted in a cup 1 containing a primer charge 2.
Patent GB-920647-A (GB)
Title: Improvements in or relating to apparatus for the treatment of water
IPC: C02F3/12
Filed: 1961-06-07
Abstract: 920,647. Gravity-separation apparatus. R. E. DUFOURNET. June 7, 1961, No. 20622/61. Class 46. Mixed liquor is air-lifted by bubbles B, Fig. 2, from an aerating chamber A through a conduit 4 to a decanting chamber D where it separates into clear liquid C and sludge M. Some sludge passes through orifices 32 in a stepped wall 19 and recycles along a passage 6 to the aerating chamber A. In Fig. 4 one baffle 10 forming one side of the conduit 4 is dispensed with, a pipe taking the place of the conduit 4. Also the direction of inclination of the passage 6 is reversed and the sludge flows gravitationally down the wall 19. Fig. 3 (not shown) has the baffle arrangement of Fig. 2 but the wall and passage arrangement of Fig. 4.