baber/WOPTO huggingface dataset:
Patent GB-576322-A (GB)
Title: Improvements in antennae assemblies
IPC: H01Q1/08
Filed: 1944-02-21
Abstract: 576,322. Aerials. BURGESS, A. F. (Zenith Radio Corporation). Feb. 21, 1944, No. 3187. [Class 40 (v)] An antenna for a vehicle, such as a motor car or aeroplane having a body with conductive parts, comprises a flexible rod having one end mounted in a base member on the body of the vehicle and the other end releasably engaged by anchoring means so that in the stowed position almost the whole of the flexible antenna is at a considerable distance from the vehicle body. The flexible rod 10 is secured to a base 12 by a coiled spring 16 and sleeves 15, 28 and a further spring 17 is attached to plugs 29 held by the sleeves 15, 28. In the stowed position the free end of the rod 10 lies in a groove 19 in an insulating member 18 and is held by a spring-biassed pin 20 which may be operated by an electromagnet controlled by a switch on the dashboard. The flexibility of springs 16, 17 allows the vehicle to back under an obstacle without damage to the unstowod aerial, and the ball 11 prevents accidental release of the stowed aerial if the top of the car engages a low-lying obstruction. The effective length of the aerial can be increased by replacing the tube 10 by a number of telescoping sections.
Patent GB-592982-A (GB)
Title: Improvements in or relating to valves for controlling the passage of fluids
IPC: B21K1/24
Filed: 1945-02-08
Abstract: <PICT:0592982/IV/1> A method of making valve seatings consists in charging the undercut, annular recess 5, Fig. 3, in each of a number of mounts 3, with powdered synthetic resin and placing the mounts on a conveyer belt 1, Fig. 2, which is moved intermittently to bring the mounts in turn between electrodes 7 of a low-voltage, high-amperage, alternating current supply, by which the resin is rendered fluent. The fluent mass may be pressed into the recess by a plunger 8 disposed above the conveyer.  In a modification, the resin is formed into a solid ring which is placed in the recess prior to heating.  In another arrangement, the resin may be heated to the fluent state before being charged into the recesses. Preferred materials are the thermoplastic vinyl resins, especially polythene, polystyrene, or acrylic resins, but thermosetting resins of the phenol-formaldehyde, urea-formaldehyde or phenolic-furfural types may be used.
Patent GB-767304-A (GB)
Title: Lift truck forks
IPC: B66F9/18
Filed: 1954-02-04
Abstract: 767,304. Fork lift trucks; gripper forks for lifting stacks of articles. KEY, J. W. July 19, 1954 [Feb. 4, 1954], No. 3269/54. Classes 78 (3) and 78 (4). The tines of a lift truck fork for handling stacks of bricks or the like, each comprise a U-shaped member X, a load-supporting plate T to which are secured wedges J, and extensible gripping plates G provided with members F which extend through slots in the sides of member X, and which have chamfered end portions operatively engaging the sides of wedges J. Vertical and horizontal coil springs (not shown) respectively urge plate T upwardly and plates G inwardly. Means (not shown), are provided to guide plates T and G, and to limit upward movement of plate T.
Patent GB-1249761-A (GB)
Title: Transmission device for the transmission of analog signals by means of pulse code modulation
IPC: H03M1/00
Filed: 1970-01-23
Abstract: 1,249,761. Analogue/digital and digital analogue converters. TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQUES. 23 Jan., 1970 [28 Jan., 1969], No. 3324/70. Heading G4H. A dual ramp digital voltmeter is modified in that the integrator A 2 , C 1  (Fig. 5) receiving the input signal for a fixed time interval P 1  is discharged by a voltage - V R  for a time which is measured by counting clock pulses in a counter K 1  (Fig. 7) to a threshold level E 0  a second integrator A 5 , C 2  then being charged at the start of the next clock pulse by a current proportional to this residual voltage for a fixed time and discharged by a reference voltage - V R /2<SP>6</SP> the time for discharge to a zero level being measured by counting clock pulses in a second counter K 2 . In the embodiment described the application of the input signals and the reference signals to the integrators are controlled by MOS transistor switches. To reconstitute the original analogue signal the complements of the count in the counters K 1 , K 2  are stored in counters (K<SP>1</SP>, K<SP>11</SP>, Fig. 10, not shown) the counter constituting the most significant part being then counted down to zero during which time an integrator (A 7 , C 3 , Fig. 8, not shown) integrates a reference signal, proportional to V 2 , the second counter K<SP>1</SP> 2  then being counted down to zero during which time a second reference signal proportional to - V R /2<SP>6</SP> is applied to the integrator. An operational amplifier A 8  is connected as a voltage follower to the output of the integrator to give an output voltage representing the mean value of the recovered signal.
Patent GB-1213491-A (GB)
Title: A cinematographic taking lens with variable focal length
IPC: G02B15/14
Filed: 1968-01-22
Abstract: 1,213,491. Zoom objectives. SOC. D'OPTIQUE, PRECISION, ELECTRONIQUE ET MECANIQUE. Jan.22, 1968 [Jan.27, 1967], No.3334/68. Heading G2J. A zoom lens having a front divergent unit A which is movable only for focusing at different distances, a second convergent unit B coupled to a fourth convergent unit D for equal movement in one direction and a third divergent unit C for proportional movement in the opposite direction followed by a fixed divergent unit E and the rear fixed unit F having focal lengths of F 1  - F 6  respectively is characterized by:- Optical data are provided for the example shown which has a zoom ratio of 3 and all the glasses used have a refractive index greater than 1À620.
Patent GB-634185-A (GB)
Title: Improvements in devices for sharpening gramophone needles and the like
IPC: B24B19/16
Filed: 1947-02-05
Abstract: 634,185. Abrasive sharpening of gramophone needles. SEXTON, R. Feb. 5, 1947, No. 3372. [Class 60] [Also in Group XXII] In apparatus for sharpening gramophone needles and the like, the holder for the needle 22 comprises a pair of semi-cylindrical jaws 14, 15 pressed together by rubber rings 16; the holder is opened by means of a screw 17 in screw-threaded engagement with an aperture in jaw 14, the end of the screw abutting against the jaw 15. The holder is carried by a housing 12 on a spindle 10 having a part-spherical portion 13 supported in a circular aperture 5 in a frame 2; the lower end of the spindle 10 carries a driving wheel 11 which engages an abrasive ring 19 carried by a dished disc 18 secured to a ribbed or knurled knob 20 which is rotatable on a shaft 9 and can also be slid axially thereon to facilitate insertion and removal of the needle, and also replacement of the abrasive ring 19.
Patent GB-1145728-A (GB)
Title: Resinous sinterings
Inventor: SOCCI MINIATO
IPC: C08K3/38
Filed: 1968-01-23
Abstract: 1,145,728. Sintered PTFE/BN compacts. MONTECATINI EDISON S.p.A. 23 Jan., 1968 [24 Jan., 1967], No. 3394/68. Heading B5A. [Also in Division C3] A sintering is prepared by pre-forming a mixture comprising polytetrafluoroethylene powder in admixture with boron nitride powder in a compression mould at a pressure between 150 and 450 kg. per sq. cm. in the ease of a virgin powder or between 4000 and 6000 kg. per sq. cm. in the case of a recovery powder, sintering the pre-formed material by gradual heating in an oven up to between 300‹ and 400‹ C. for from 1 to 3 hours and gradually cooling the mixture in the mould under pressure. Preferably, the mixture contains about 10% of boron nitride by weight with respect to the polytetrafluoroethylene resin.
Patent GB-1456555-A (GB)
Title: Stepping-motion machine
IPC: G05B19/39
Filed: 1974-01-25
Abstract: 1456555 Automatic control of position  PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 Jan 1974 [15 Feb 1973] 03533/74 Heading G3N A device for performing step-wise movements is corrected for deviation from a predetermined desired position of a step by a binary adjusting mechanism comprising a series of lever for effecting a correction in response to the reading of a coded correction for the deviation of each step. A slide 1 is displaced by a stepping device, (not shown), through a bar 2 so that a pawl 3 is retained against a positioning face 5 of a rack 4. Attached to the slide 1 is a bar 14 bearing coded holes which are read by a photo-electric device 15 to selectively determine the energization of electromagnets and correctively displacing the rack 4 through levers 6-9. The code, for each step, is determined by initial measurement and the displacements of the electromagnets and associated levers are related binarily. In an alternative arrangement the slide is replaced by a drum coupled to a rotary code disc and the levers directly displaces a pawl co-operating with a gear-wheel on the drum. It is stated that the electromagnets could be replaced by hydraulic or pneumatic two-position mechanisms and the code prepared on a punched tape coupled to the slide. It is also possible for the read unit to move with the slide while the code tape or bar remains stationary.
Patent GB-305662-A (GB)
Title: Improvements in tacheometric telescopes
IPC: G02B23/10
Filed: 1929-02-02
Abstract: 305,662. Zeiss, C., [Firm of]. Feb. 9, 1928, [Convention date]. Tacheometers.-Tacheometric telescopes are provided with a double-angled prism for the purpose of ascertaining the foot of the perpendicular dropped from the line connecting two points passing through the axis of rotation of the telescope. Two pentagonal prisms g, h are symmetrically mounted on the telescope b so as to sight two lines at right angles to the axis Y-Y of the telescope. The upper surface of the upper prism h is provided with a sighting groove h<4> for sighting the stave C<1> above views A<1>, B' of the staves on the line at right angles to the telescope. A lock f is adapted to be pressed into either of three grooves spaced 90‹ apart on the foot b<1> of the telescope b so that either of the staves may be sighted in the telescope. Specification 551/11 is referred to.
Patent GB-389631-A (GB)
Title: Improvement in the method of connecting together the springs used in the making of spring mattresses, chairs, seats, cushions, pillows and the like
IPC: A47C23/053
Filed: 1932-02-08
Abstract: 389,631. Spring upholstery. DOCHERTY, M., 91, Stewarton Drive, Cambuslang, Lanarkshire. Feb. 8, 1932, No. 3631. [Class 52 (iv).] Upright helical springs are connected to each other and to supporting wires 6 by forming dents 8 at opposite ends of a diameter of the top and bottom coils, bending a loop 7 across the diameter, and screwing a spiral clip 9 along the loop. For the bottom coil 5 of the spring 13, the clip is screwed right across the diameter and encloses the supporting wires 6. At the upper end of the spring 13, loops 3 are connected across two diameters at right-angles and four clips 4 are screwed inwards from their opposite ends. Before they reach the centre a closed portion of the spiral binds against the upper coil of the spring 13. The clips at their outer ends 14 are of open spiral form to facilitate attachment to the neighbouring springs. A lighter spring 12 may be superposed on the spring 13, and may be fixed thereto by threading its lowermost-turn three times through the loops 3 before the clips 4 are screwed on.
Patent GB-732399-A (GB)
Title: Improvements in or relating to gas separation
Inventor: SCHUFTAN PAUL MAURICE
IPC: F25J3/04
Filed: 1953-02-10
Abstract: 732,399. Compressing gases; cold separation of gases. BRITISH OXYGEN CO., Ltd. Feb. 10, 1954 [Feb. 10, 1953], No. 3725/53. Classes 8 (1) and 8 (2). In a process for separating gases, including the steps of compressing and cooling, variations in the output of the compressor due to changes in temperature and humidity of the input are substantially eliminated by maintaining the conditions of temperature and humidity of the input gas constant. The input gas is cooled in a thermostatically controlled refrigerating unit or in the case of air separation by heat exchange between the nitrogen fraction into which a stream of water is injected.
Patent GB-1067189-A (GB)
Title: Machine for tying, hooping or baling articles
IPC: B65B13/12
Filed: 1966-01-27
Abstract: 1,067,189. Packaging. BRNINGHAUS & CO. BEZETT KOMM GES. Jan. 27, 1966 [Feb. 6, 1965], No. 3727/66. Heading B8C. [Also in Division F2] A machine for baling, hooping &c. an article 11 with a tie, comprises a supply reel 22 of tying material and a rotary ring 13 for laying the tie material about the article, the tie being tensioned by a torque derived from the ring rotation and tending to turn the reel in opposition to its direction of withdrawal rotation. The rotary ring 13 is supported by rollers 18. A larger diameter ring 12 is fixed in a plane displaced from the plane of the rotary ring 13. A carrier 25 for the reel is secured to the rotary ring 13. Mounted on the carrier 25, at the third corner, is a rotatable shaft. When the ring 13 is rotated, the carrier 25 is moved relative to the stationary ring 12 and the shaft is rotated through planet gear (31) mounted on the shaft which meshes with rim teeth 14 of the ring 12. A sprocket (32), also mounted on the shaft drives through a chain (34) and a sprocket (35) fixed to an inner sleeve (36) forming part of the reel carrier hub which rotates around a non-rotatable hub spindle. The hub also comprises an external sleeve (41) positioned over the inner sleeve (36) on needle bearings (62). The external sleeve (41) has a friction lining (44) which is forced against a flange (42) of the inner sleeve (36) by adjustable compression springs (46). The supply reel 22 is mounted on and secured to an external sleeve (41). As the ring 13 rotates to feed the material around the article, sleeve (36) rotates so as to oppose withdrawal by its friction coupling with the sleeve (41).
Patent GB-843187-A (GB)
Title: Moulding
Inventor: FOTI ERIC ST JOHN
IPC: C04B14/20
Filed: 1957-02-04
Abstract: A structure, e.g. a coffin, or, according to the second Provisional Specification, flat and corrugated asbestos/cement sheets, comprises a matrix of cement or plaster having embedded and distributed in it particles of a material which will expand on heating, e.g. vermiculite, to an extent and in an amount sufficient to disrupt the structure gently when it is heated. Preferably 15 to 25% by weight of unexfoliated vermiculite is incorporated in the form of flecks 1-3 mm. in diameter and, if desired, reinforcing fibrous material, e.g. asbestos, and synthetic resin binder may also be included. Specification 772,542 is referred to.
Patent GB-402621-A (GB)
Title: Improvements in and relating to the production of immunising substances
IPC: C07K16/12
Filed: 1933-02-07
Abstract: Immunizing-serums are prepared by cultivating pathogenic bacteria in vitro on a medium consisting of living blood diluted solely with physiological sodium chloride solution.  The blood is freshly taken from a human being or an animal of the kind for which the remedy is intended and is not subjected to any preliminary treatment.  The culture is kept at 37 DEG  C. for 24 to 48 hours and is then filtered to remove the bacteria.  Bacteria specified are diphtheria bacilli and streptococci, and polyvalent preparations are referred to. Protective and curative sera for tumours and glandular affections are obtained by adding parts of the tumour or glands to the medium during the cultivation of bacteria such as streptococci, coli, staphylococci, typhosus, or paratyphosus.
Patent GB-819199-A (GB)
Title: Novel -a-mercapto-amides and a process for the manufacture thereof
Filed: 1958-02-05
Abstract: The invention comprises a -mercapto-amides of the formula <FORM:0819199/IV (b)/1> (wherein R represents an alkenyl or alkynyl group and R1 is a hydrogen atom or an alkyl or alkenyl group), and their preparation by (1) treating an a -halogen-a ,a -dialkyl-acetic acid with hydrogen sulphide, reacting the resulting a -mercapto-a ,a -dialkyl-acetic acid with a compound R-halogen, converting the a -(R-mercapto)-acetic acid so formed into its acid halide and reacting the latter with ammonia or an amine H2N-R1; or (2) converting an a -halogeno-a -a -dialkyl-acetic acid into its acid halide, treating the latter with ammonia or an amine H2N-R1 and reacting the acid amide so formed with a compound HS-R. Preferably, in method (1), the a -mercapto-a -a -dialkyl-acetic acid is condensed with the halide R-Halogen in a solvent (e.g. ethanol) in the presence of an acid binding agent (e.g. NaOMe) at ca. 20 DEG  C.; the resulting a -(R-mercapto)-a ,a -dialkyl-acetic acid is converted into the corresponding acid halide in the usual manner, and the latter is reacted with an amine H2N-R1, advantageously in an inert solvent (e.g. ether).  In examples, a -mercapto-a ,a -diethyl-acetic acid is alkenylated with allyl bromide and the resulting a  - allylmercapto - a ,a  - diethyl - acetic acid is converted, via the acid chloride, into a -alkylmercapto - a ,a  - diethyl - acetamide and N-methyl - and N - allyl - a  - allylmercapto - a ,a -diethyl-acetamide by reacting with ammonia, methylamine and allylamine respectively. Similarly, a  - crotyl - and a  - propargyl - mercapto-a ,a -diethylacetic acid and a -allyl-, a -crotyl- and a  - propargyl - mercapto - isobutyric acid are prepared by alkenylating or alkynylating the appropriate a -mercapto acid, and converted into the corresponding acetamides and N-methylacetamides.  In examples of method (2), a -bromo-a ,a -diethylacetic acid and a -bromoisobutyric acid are heated with thionyl chloride, the resulting acid chlorides are reacted with ammonia, and the amides are reacted with allyl mercaptan.ALSO:Therapeutic preparations, e.g. tablets, syrups or elixirs, for use as sedatives, muscle relaxants and tranquillizers, contain compounds of the general formula <FORM:0819199/VI/1> (wherein R represents an alkenyl or alkynyl group and R1 represents hydrogen or an alkyl or alkenyl group) in admixture with carriers and/or excipients.
Patent GB-576542-A (GB)
Title: Improvements in filters
IPC: B01D29/00
Filed: 1944-03-01
Abstract: 576,542. Filters. KEENE, E. W. W. March 1, 1944, No. 3802. [Class 46] [Also in Group XXVIII] A filter for liquids or gases comprises a number of flat perforated tubes 14, each of which is split with the split ends turned inwardly to grip resiliently a strip 15 of filtering material surrounding the tube. The tubes are held at the ends in slots formed in plates 13, 16 which are enclosed in a casing 11. The slots in the lower plate are smaller than those in the upper plate and the tubes with the filtering material are compressed in these slots by means of a tightening bolt 17 and nut 18. Fluid to be filtered enters through an opening 22, passes through the tube 12 and through the filter tubes 14, being discharged through an outlet 23. The perforations in the tubes 14 are formed by punching the sides to form teeth which project inwardly to space the sides apart. Two tubes may be used together one inside the other. The tubes may be made of glass, metal or plastic material. The filtering material may be made from fibre, paper sheets, woven metal or glass. In the case of woven metal it may be pre-coated with asbestos, cotton'lints, kapok, kieselguhr or diatomaceous earth.
Patent GB-117420-A (GB)
Title: Improvements relating to Writing Pads more especially for use by the Blind.
Inventor: HOLT MABEL
IPC: G09B21/00
Filed: 1918-03-05
Abstract: 117,420. Holt, M. March 5, 1918. Blind persons, teaching.-A pad for aiding blind or weak-sighted persons in writing letters, &c., or in addressing or affixing stamps to envelopes, is provided with raised lines c adapted to be felt by the writer through a superposed sheet of paper or envelope. As shown in Fig. 1, the raised lines may be formed by affixing a piece of paper b with folds c to a base a; alternatively, ribs may be pressed out of a cardboard or metal base. A number of sheets of paper and a cover f may be attached to one edge of the pad. Vertical lines may be provided for guidance in writing columns of figures. The pad, Fig. 3, is adapted to be inserted in an envelope, and is provided with a raised frame e for determining the position of the stamp.
Patent GB-918285-A (GB)
Title: A testing arrangement for high-voltage circuit-breakers
IPC: G01R31/333
Filed: 1960-02-03
Abstract: 918,285. Testing circuit-breakers. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Feb. 3, 1960 [Feb. 4, 1959], No. 3857/60. Class 37. In an arrangement wherein an A.C. circuitbreaker Sp under test is opened against a shortcircuit current immediately prior to the application of an H.T. test voltage from a separate source Up ; the A.C. source is protected against the H.T. voltage by an auxiliary circuit-breaker Sh; and the arcs which collapse during the passage of current through zero are reignited by an ignition pulse; the auxiliary circuit-breaker is so designed or its opening is so controlled that the dielectric strength of its gap is small compared with that of the breaker under test until the half-cycle preceding that in which the breaker under test reaches its open end position, after which it increases to its designed maximum. This can be arranged by a particular manner of movement of the auxiliary-breaker contacts, by controlling the timing of blow-out or inflow of quenching medium, or by employing in the auxiliary-breaker a plurality of contact sets in series.
Patent GB-667315-A (GB)
Title: Improvements in variable capacitors
IPC: H01G5/38
Filed: 1950-02-15
Abstract: 667,315. Variable condensers. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 15, 1950 [Feb. 18, 1949], No. 3879/50. Class 37. In a variable condenser with a housing 1 having the stator 9 supported by members 13 clamped between insulating balls 15, each member 13 is secured in the housing by plastic deformation of at least one of the parts between which the balls 15 are gripped. The rod-shaped supporting members 13 are mounted in recesses 11 in the walls of the die-east aluminium housing or between a wall of the housing and a central partition 3. The stator plates 9 are soldered at 17 to the brass rod 13 and introduced with the porcelain balls 15 into a recess 11, the rod 13 being then compressed between dies to flatten and lengthen it. The balls are thus tightly gripped and may be slightly pressed into the housing and held by depression in the ends of the rod 13. Alternatively the wall of the casing may be plastically depressed at 31 to press the aluminium of the housing on to the balls 15.
Patent GB-179296-A (GB)
Title: Improved back stop for wood workers' benches
IPC: B25B5/10
Filed: 1921-02-02
Abstract: 179,296. Grimwade, W. R. Feb. 2, 1921. Bench fittings. - A back stop for carpenters' benches of the kind having a base-plate 5 with depending projections 6 htting in corresponding holes of a series in the bench, is provided with a backing arm 8 and a worm 13 both pivotally mounted on the upper face of the base plate and adapted to be placed in geared engagement for effecting angular adjustment of the arm. The worm 13 has a spherical end 15, Fig. 2 resting on a removable cap 17 and engaging a housing 1& integral with the base-plate 5. The worm thread engages teeth on a quadrant plate 11 pivoted on a boss 7 and carrying the arm 8 which is offset and has a serrated gripping-end. The worm 13 is readily releasable for quick adjustment of the arm 8, and is retained in geared engagement by a concave overhanging projection 29. A hole 19 is provided for lubricating the ball 15.