baber/WOPTO huggingface dataset:
Patent GB-1483676-A (GB)
Title: Decoder for four channel record
IPC: H04S3/00
Filed: 1975-05-21
Abstract: 1483676 Quadraphonic decoders QUADRACAST SYSTEMS Inc 21 May 1975 21915/75 Heading H4R A decoder, for quadraphonic gramophone records carrying directly recorded sum signals and frequency modulated difference signals on a 30 kHz carrier, includes a PLL difference signal demodulator having a VCO 70 associated with a DC (0-40 Hz) control path 76 to effect locking and an AC (50-15 kHz) control path 74 to effect tracking. The frequency bands are defined by 4 Áf. capacitor 109, which also acts as a memory in the case of carrier drop-out, and 1K resistor 113 is parallel with 0À01 Áf. capacitor 111. The combined circuit is in series across the input to differential amplifier 101, 103 receiving output signals from the phase comparator 102, 104 and providing demodulated difference signals via lines 106, 108, transistors 118, 120 and line 82 to control the oscillator 70 as well as provide the audio output 92 for matrixing with the separated sum signal. The oscillator 70 consists of Schmitt triggers 78, 80 and may provide balanced or unbalanced signals on lines 94, 95 for phase comparison at 102, 104 with the carrier signals at 96, 98. Lines 115, 116 control muting and indicator circuits. Reference has been directed by the Comptroller to Specifications 1,424,015, 1,346,078 and 1,337,397.
Patent GB-892805-A (GB)
Title: Neutron detector instrumentation
IPC: G01T1/18
Filed: 1960-06-23
Abstract: 892,805. Detecting neutrons. BENDIX CORPORATION. June 23, 1960 [July 6, 1959], No. 22019/60. Drawings to Specification. Class 39(4) A neutron detecting apparatus comprising a detecting chamber emitting pulses on detection of neutrons and a coaxial cable connected to the chamber output, is characterised in that a current amplifier is connected to the far end of the cable. The amplifier is preferably a transistor amplifier, and the cable is preferably terminated by an impedance equal to its characteristic impedance.
Patent GB-1461351-A (GB)
Title: Filter units
IPC: B01D46/04
Filed: 1974-05-17
Abstract: 1461351 Gas filter GARANT ENTSTAUBUNGSANLAGEN-APPARATEBAU GmbH & CO KG LUFTUND FILTERTECHNIK 17 May 1974 [21 May 1973] 22097/74 Heading BIT  A gas filter comprises a housing 1 having a bulkhead 10 which separates a dirty gas space 2 from clean gas space 3, flat filter pockets 11 which open through the bulkhead and reverse flow gas nozzle(s) 14 on a carriage 15 which traverses horizontally across the openings in bulkhead and engages each pocket in turn and at the same time obturates the mouths of pockets on either side of the engaged pocket. The carriage 15 extends the height of the mouths of the pockets and is supported on right angled section rails 16 and 17 by pairs of rollers carried on similar rails mounted on the carriage, the upper carriage rail being adjustable in height. Two nozzles may be mounted on a carriage each cleaning half of the bags, the carriage being driven by a belt or chain running on two pulleys. The nozzle is of box section having a convex flexible cover (e.g. felt) having a longitudinal slit or slits held open by channels gripping the edges of the slit which are turned inwards (Fig. 10 not shown), the cover being flexed outwardly of the box section by a tensioning spring or springs to smoothly engage openings in the bulkhead. More than one bulkhead arid more than one row of filter pockets may be present, for example, opposite and parallel to each other. Fig. 2 (not shown) illustrates a construction of cleaning nozzle with provision for shielding the bag mouths adjacent to the bag being cleaned.
Patent GB-1042457-A (GB)
Title: Watertight watchcase
IPC: G04B37/11
Filed: 1963-06-04
Abstract: 1,042,457. Watches. MANUFACTURE DE BOITES DE MONTRES. S. GRABER S. A. June 4, 1963 [June 5,1962], No. 22179/63. Heading G3T. A watertight watchcase, Fig. 5 (as shown) and Figs. 1 to 4 and 6 to 12 (not shown), comprising a caseband 1 and a bottom 3 with an upstanding annular part 11 which fits into the caseband, and in which a sealing ring 5 is compressed axially by assembly of the watchcase, is provided with inner projections 24 round the caseband and outer projections 25 round the bottom to fix the parts together. Each of the projections is limited axially, on one side, by a regular surface portion the generatrix of which is perpendicular to the axis of the case. This surface forms an oblique camming surface, and the camming surfaces are so inclined and set that the camming surface of each projection of one of the members bears against a corresponding camming surface of the other member which has the same inclination. One member can be entered into the other with the respective projections partly facing each other, as shown before the members are relatively rotated to assembled position, Fig. 9. The projections on each member comprise three identical portions each extending through an angle somewhat less than 120 degrees. The thickness of each projection gradually increases along the greater part of its length and then decreases in a clockwise direction in Fig. 1. In a modification, Figs. 10-12, the members can be completely disengaged from one another by only a small counterclockwise rotation of the bottom. This is achieved by relatively short helicoid surfaces 30, 31 on the wider radial ends of the projections.
Patent GB-221832-A (GB)
Abstract: 221,832. Shipley, B. M. Jan. 2. 1923, [Convention date]. Cash registers with operating-means ; error levers ; locking the machine. The keys when depressed are held down by the usual arcuate detent plates moved to release the keys at the end of the operation, by the rocking of the machinerelease shaft 64. To correct an erroneous setting, this shaft may be rocked manually bv means of a hand-lever 165, pivoted at 169 and having a nose 164 projecting beneath a pin 163 on a link 161 depending from an arm 160 fixed on the shaft. The link is guided by a slot in it engaging a key barrel 162 and its lower end co-operates with a fixed lug 173. To lock the machine against use the error lever is depressed to raise the link and to uncover the key barrel normally obscured by a shield 171 secured to the lever. The key is then inserted and the barrel turned whereupon an eccentric portion of the barrel swings the link to the right to position its lower end above the lug 173. The error lever being then released the link is retained in its raised position by the lug so that the shaft 64 is prevented from rocking to put the machine in operation.
Patent GB-1216224-A (GB)
Title: Improvements relating to an electrical connector system
Inventor: WATSON JOHN RICHARD
IPC: H01R4/50
Filed: 1968-05-10
Abstract: 1,216,224. Educational appliances. CLEAVER HUME Ltd. 24 July, 1969 [10 May, 1968], No. 22284/68. Heading G5G. [Also in Division H2] For demonstrating electrical circuits, a printed diagram 3 of a circuit is so arranged that, when positioned on a board 1, its circuit junctions correspond with the positions of apertures 2 which are laid out in a matrix on the board. Connections between the wire ends of electrical components are made by passing the wires 6 through an aperture 2 and inserting a nut and bolt fastener 8 to hold the wires and establish electrical connection between them. The fastener is preferably of brass and the bolt has a tapered head 11 extending into the aperture, while the knurled nut 12 has convex surfaces 13 and 14. However, the tapered portion may be on the nut and one or both of the elements may be of plastics. In the latter case, electrical connection is established by a metal eyelet in the aperture. A component not having wire ends may be mounted on a wired platform supported on a bolt through an unused aperture 2.
Patent GB-1104201-A (GB)
Title: Suspendable air heater
IPC: F24D5/00
Filed: 1965-05-26
Abstract: 1,104,201. Air heaters; ventilating. APPARATENFABRIEK VOOR LUCHTEN WARMTETECHNIEK C. KAPPERS, N.V. 26 May, 1965 [5 April, 1965], No. 22297/65. Headings F4S and F4V. An air heater adapted to be suspended from the ceiling has a central cylindrical burner box 5 fed by a burner 4 the combustion gases passing through holes 6, 7, 8 to an upwardly tapering combustion chamber 3 and pipes 9 in a tube-like housings 2. The pipes 9 lead to a chimney 11 and blowers 12 force air into a space surrounding the combustion chamber 3 and through the housings 2 where the air is heated by passing over the pipes 9 and issues to the room through angled outlet members 13 provided with guide blades. The housings 2 of the heater are of elliptical cross-section with the major axis vertical and the chimney 11 is offset from the centre of the combustion chamber to enable the heater to be hung from a rafter. The blowers 12 may draw in air from outside the building.
Patent GB-276679-A (GB)
Title: Improvements in the manufacture of viscose silk
IPC: D01F2/10
Filed: 1927-08-25
Abstract: 276,679. I. G. Farbenindustrie Akt.- Ges. Aug. 25, 1926, [Convention date]. Right to Patent relinquished. Cellulose xanthates, processes for making filaments from.-To improve the wetting properties of viscese silk, there is added to the viscose solution or to the spinning bath, or to the washing, desulphurizing &c. liquids, an alkylated or aralkylated naphthalene sulphonie acid, or aminobenzene or aminonaphthalene sulphonic acid alkylated or aralkylated in the amino group, or the sulphonation products obtainable by the sulphonation of brown coal tar oils either by means of chlorosulphonic acid or by fuming sulphurie acid or by the process described in Specification 271,474, [Class 2 (iii)) Dyes &c.]. Suitable brown coal tar oils are solar oil, yellow oil, gas oil and paraffin oil. Specifications 184,449, 184,450, 234,188, and 234,433 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) refers to the addition of wetting agents in general, and includes a reference to Specification 269,943, [Class (iii), Dyes &c.]. This subject-matter and reference do not appear in the Specification as accepted.
Patent GB-509372-A (GB)
Title: Rotary piston engine
IPC: F01C3/02
Filed: 1938-07-27
Abstract: 509,372. Rotary engines. GFELLER, F. July 27, 1938, Nos. 22369 and 22370. Convention dates, July 27, 1937, and Dec. 10, 1937. [Class 110 (ii)] The engine or pump has a working chamber 1 formed of spiral turns and an asymmetrically shaped rotor 4 on a shaf 3. The section of the chamber increases gradually from a port 1e to a port 1a. In the rotor is journalled a piston disc 7 on an axle 5 arranged transversely to the axis of the shaft 3. The disc has six radial projections 7a which slide through the working chamber and may be provided with packing rings. When used as an engine, working fluid enters and leaves through ports 1e, 1a respectively. The disc 7 may be driven from the shaft 3 through gearing, and the number of projections 7a may vary. In a modified arrangement, two discs are placed in the rotor with an axle on each side of the shaft 3. The casing and rotor may be cooled. The Specification as open to inspection under Sect. 91 describes an engine having a single spiral chamber and a symmetrical rotor. A modification has a double rotor with a common inlet, two outlets and two piston discs in right- and left-handed spiral chambers. This subjectmatter does not appear in the Specification as accepted.
Patent GB-356399-A (GB)
Title: Improvements in methods of, and means for, cutting out boot or shoe sole shapes
IPC: C14B5/00
Filed: 1930-07-25
Abstract: 356,399. Cutting-out boot soles. NICHOLS, J. E., 5, Chester Place, Norwich. July 25, 1930, No. 22421. [Class 31 (i).] In cutting leather sole shapes from a bend, without ranging, a loose press, or other knife with cutting edges 20, 22 and positioning gauges 18, 19 is used. The leather is either cut into shapes comprising pairs of soles, oppositely placed, by using the knives 20, 22 positioned by the gauges 18, 19 and subsequently dividing the soles, or a pair of knives with oppositely arranged cutting- edges and gauges are used to cut separate soles.
Patent GB-148067-A (GB)
Title: Improvements relating to match-boxes
IPC: A24F27/06
Filed: 1919-09-12
Abstract: 148,067. Simmonds, W. J. Sept. 12, 1919. Match-box holders; boxes with wind-guards.- A holder for a drawer-and-shell match-box e, c comprises a casing a, to one corner of which is pivoted a wind-guard b. The drawer e is provided with a fitting g engaging an arm h on the guard b, in such a manner that the match box is opened and closed by movement of the guard b. The casing a is provided with one or more springs &c. f, which enable the holder to be used for match-boxes of different sizes. Instead of using the casing in connexion with a complete drawer and shell box, it may be provided with a sliding metal container, into which matches are transferred from the receptacle in which they are sold.
Patent GB-772398-A (GB)
Title: Welding by high-frequency induction heating
IPC: B23K13/02
Filed: 1955-08-05
Abstract: 772,398. Welding by pressure. MAGNETIC HEATING CORPORATION. Aug. 5, 1955 [Sept. 16, 1954], No. 22635/55. Class 83 (4). [Also in Group XI] In welding two opposed edge portions of metal members, e.g. the edge portions 13a, 13b of a steel tube 10, which are longitudinally advancing with a V-shaped gap therebetween into abutting relation at a weld point w, the metal along the edges is heated by highfrequency induction, the current being maintained in a path adjacent each edge from a point adjacent the edge on one surface of the member, along the surface, down across the edge to the other surface near the edge, back along the other surface adjacent the edge to a point corresponding to the starting point and finally across the edge to the starting point by conductors 14, 15 carrying high frequency current and extending parallel to and closely spaced from the paths. The conductors are of watercooled copper tubing formed into two series connected single turn coils 14, 15 and the frequency employed may be under 10,000 cycles per second, but is preferably between 300,000-400,000 cycles per second. Rollers 11, 12 press the edges together at the weld point. Multi-turn coils may be used instead of single turn coils.
Patent GB-455668-A (GB)
Title: Improvements in the manufacture and production of chlorides of polycarboxylic acids
IPC: C07C51/60
Filed: 1935-08-12
Abstract: Polycarboxylic acid chlorides are made by heating benzotrichloride, benzoyl chloride or their nuclear halogen derivatives with polycarboxylic acids in which the carboxylic groups are separated by at least three carbon atoms.  The reaction may be accelerated by adding acid-reacting substances such as zinc chloride, aluminium chloride, or sulphuric acid.  In examples: (1) benzotrichloride is heated with benzene-1,4 (or 1,3)-dicarboxylic acid, if desired, using zinc chloride; (2) 2,4-dichlorbenzotrichloride is heated with benzene-1,4-dicarboxylic acid; (3) benzotrichloride or benzoyl chloride is heated with diphenyl-4,4<1>-pyrene-3,6-, or anthraquinone-1,5-dicarboxylic acids. Benzene-1-3,5-tricarboxylic acid is also specified.
Patent GB-1043946-A (GB)
Title: Pattern scanner
IPC: G06V10/12
Filed: 1965-05-28
Abstract: 1,043,946. Television. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 28, 1965 [June 30, 1964], No. 22663/65. Heading H4F. [Also in Division G4] A pattern scanner comprises a two-dimension optic-to-acoustic converter 7, Fig. 2B (not shown), arranged to have its surface traversed by a raster of acoustic signals the amplitudes of which are modified by light falling on the surface, the image of the pattern 5 being projected on to the surface at the instant the raster of acoustic signals is properly positioned on the surface, and the acoustic signals being converted to a series of electric signals. The converter 7 is formed of a piezo-electric material and the acoustic signals are generated by a transducer 11 supplied with electric pulses. Each acoustic pulse traverses the surface of converter 7 and is reflected from the opposite side so as to make 20 scans. 3 megacycle pulse generator 9, Fig. 2A (not shown), provides pulses which are formed into 20 trains of fifteen pulses by gates controlled by counters. The 20 trains are designed to fill the 20 scan lines 25 but not the fly-back lines 26. The set of pulse trains is preceded by a pulse of larger magnitude which, when converted to an electric signal by transducer 13, is detected by a threshold device 79 and fires lamp 1 at the instant the 20 acoustic trains of 15 pulses are correctly positioned along the 20 scan lines. The light image falling on the surface attenuates corresponding acoustic pulses so that, when they arrive at the transducer 13, attenuated signals are produced. After the lamp 1 has flashed the surface is returned to normal condition by a quench lamp 19 actuated by the same pulse as lamp 1, but delayed at 17. The pulses from transducer 13 are amplified at 77, sampled by narrow, shaped pulses in gate 81 and applied through a summing circuit 87 to two gates 89, 91. The gate 89 is open and passes the pulse trains back to the input transducer 11 through a summing circuit 75 so that the whole pattern including the leading triggering pulse re-circulates through the converter, the lamp being flashed again, further to attenuate the pulses. This is repeated. A counter 47 responds after the third circulation through the converter to close gate 89, preventing further circulation and open gate 91 to pass the signal trains to a threshold circuit 95 which converts the signals to binary form to provide scan signals at the output 97. Storing.-If switch 99 is in the other position, flip-flop 101 is set to open gate 103 so that the binary signal trains pass back to the input of converter 11. The lamp is not operated in this operation so that the signals recirculate indefinitely. Alternative application.- Instead of repeatedly using the same pattern, different patterns may be flashed on to the converter in successive cycles to develop pulse trains representing various functions of these patterns.
Patent GB-1535485-A (GB)
Title: Isolation of epsilon-caprolactam
IPC: C07D201/16
Filed: 1977-05-30
Abstract: Process for purifying  epsilon -caprolactam by extraction and recrystallisation, wherein a crude lactam is extracted with toluene and recrystallised from toluene. The process is particularly simple to carry out continuously with high yield without distillation to obtain ultrapure lactam.
Patent GB-458994-A (GB)
Title: Improvements in or relating to spirit burners
IPC: F24C5/20
Filed: 1935-08-13
Abstract: 458,994. Spirit burners. KRAMER, M., 20, Carlton Mansions, Holmeleigh Road, Stamford Hill, London. Aug. 13, 1935, No. 22738. [Class 75 (i)] A spirit burner comprises a box 10 formed with a series of flame apertures 11 near its upper edge and containing a tubular member 14 having a flared upper edge 14b for supporting the cooking utensil projecting above the upper edge of the box. The lower part of the tubular member 14 is formed with apertures by bending outwardly tongues which may make contact with the inside of the box 10. When not in use a lid is fitted over the top of the box. The lid is formed with a lip and may be used to pour spirit into the box 10.
Patent GB-901132-A (GB)
Title: Improvements in or relating to methods of coating articles under vacuum
IPC: C23C14/56
Filed: 1960-06-29
Abstract: 901,132. Coating by vapour deposition. VOULTON-BAUDIN, C. C. June 29, 1960 [July 2, 1959], No. 22767/60. Class 82 (2). Articles are coated under vacuum by exposing to a coating vapour the exposed face of the outermost article of a stack of articles to be coated at one location within a vacuum chamber, detaching in succession the outermost articles from the stack and moving them to another location within the chamber so that, when an article is detached from the stack, the opposite face becomes exposed to the coating vapour. As shown, flat articles 3 (e.g. mirror blanks) are suspended in vacuum chamber 1 on inclined rails 4 so that on rotation of toothed wheel 5 single articles are released and roll down the rails. Thus face 3a of each article is first exposed to vapour from heated metal source 2, whereupon, after each article has run down rails 4, face 3b of the article is exposed to vapour. Faces 3a, 3b may belong to the same article or to a pair of articles arranged back to back. In modified forms of the apparatus, articles are moved or released on rails by chains provided with pegs (Figs. 3 and 4, not shown).
Patent GB-1439312-A (GB)
Title: Process for recording information onto magnetic tape
IPC: H04N5/7826
Filed: 1973-08-24
Abstract: 1439312 Video tape recording INTERNATIONAL VIDEO CORP 24 Aug 1973 [1 Sept 1972] 22782/75 Divided out of 1439311 Heading G5R The disclosure is substantially identical to that in Specification 1,439,311, but the claims relate to a magnetic recording process by means of which a helical scanner records television signals on to substantially parallel tracks on a magnetic tape, each said track being substantially 5À24 inches long and inclined at an angle of substantially 19À55 degrees to the tape edge.
Patent GB-301293-A (GB)
Title: An improved reel or swift for holding skeins or hanks of yarn
IPC: B65H49/30
Filed: 1928-08-07
Abstract: 301,293. Fairbrother, H., K.). Aug. 7, 1928. Skein holders and swifts.-In a skein holder or swift each arm 13 is hinged to a link 9 and is guided in the eye 17 of a holder 10, the links 9 and holders 10 being secured to hub members 2, 5 which are relatively rotatable to vary the circumference of the The arms 13 are bent at 16 to pass the hinges 12.
Patent GB-1346541-A (GB)
Title: Lubricant recovery device for sewing machines
IPC: D05B71/00
Filed: 1972-05-16
Abstract: 1346541 Lubrication VIRGINIO RIMOLDI & CO SpA 16 May 1972 [15 June 1971] 22888/71 Heading D1G The lower bush 16 of a guide for a needle bar 11 is provided at 17 with a scraper removing lubricant from the needle bar, the removed lubricant passing into a container 19 before being removed therefrom by passages 22-25 leading to a sump 26 from which it is removed by conduit 21 connected to a pump (30, Fig. 1, not shown). A second conduit 28 connected to the pump empties a further sump 29 in the machine head.
Patent GB-961247-A (GB)
Title: Improvements in or relating to pregnane derivatives
IPC: C07J5/00
Filed: 1962-06-14
Abstract: The invention comprises compounds of the general formulae: <FORM:0961247/C1/1> <FORM:0961247/C1/2> wherein X is a carbonyl, hydroxy-methylene, or (alkanoyl)-oxymethylene radical, wherein the alkanoyl portion contains 1-6 carbon atoms, and a process for the preparation thereof which comprises (a) introducing an unsaturated linkage or linkages, at least between carbon atoms 1 and 2 into a compound of the formula: <FORM:0961247/C1/3> by contacting with a chemical or biological dehydrogenating agent known for the introduction of unsaturated linkages into a 3-keto steroid and which does not attack the 17b -acetyl substituent, and, if desired, when a 15-hydroxy starting material is used, (b) acylation or oxidation of the 15-hydroxy group with an agent known for the acylation and oxidation, respectively, of secondary hydroxy groups and which does not attack either nuclear unsaturated linkages or the 17b -acetyl substituent. Chemical dehydrogenation may be effected for example with chloranil or 2, 3-dichloro-5, 6-dicyano-benzoquinone and microbiological dehydrogenation with Arthrobacter, Bacillus, Didymella and Septomyxa species.  Oxidation may be effected with chromium trioxide, or by aluminium t-butoxide under Oppenauer conditions.