baber/WOPTO huggingface dataset:
Patent GB-1470090-A (GB)
Title: Circuit arrangement for synchronizing a television receiver
IPC: H04N5/06
Filed: 1974-10-10
Abstract: 1470090 Television INTERNATIONAL STANDARD ELECTRIC CORP 10 Oct 1974 [18 Oct 1973] 43913/74 Heading H4F An arrangement for synchronizing the horizontal and vertical deflection signals in a television receiver comprises a central oscillator 1 generating in synchronism with a received horizontal synchronizing signal a signal having a frequency equal to twice the line frequency which is fed to a divider and shaper circuit 2 to produce the horizontal deflection signal for the receiver and via a phase search circuit 3 to a cyclic counter 4 which may be set to give a full count of a first magnitude, e.g. 620, or a second magnitude, e.g. 625, and which supplies a working signal to the receivers vertical deflection circuit each time it attains the full count to which it is set; wherein the circuit 3 compares the vertical deflection signal derived in a circuit 7 from the working signal with the vertical synchronizing signal separated from the incoming composite signal. In operation with the counter 4 set to a full count of the first magnitude the circuit 3 adjusts the duration between successive working signals so as to cause eventual coincidence between the two compared signals whereupon the full count of the counter is changed (i.e. a phase identification circuit 5 detects coincidence and controls a changeover switch 6) to its second magnitude so that the coincidence is maintained. If the working signal occurs in the first half of a picture field it is caused to occur earlier in each succeeding field until coincidence is established, while if it occurs in the second half of a picture field the input to the counter is blocked for the duration of the working signal so that the working signal occurs later in each succeeding field until coincidence is established.
Patent GB-1110399-A (GB)
Title: Method and apparatus for conveying lubricant in a refrigerant circuit
IPC: F25B31/00
Filed: 1965-10-18
Abstract: 1,110,399. Lubricating. LINDE A.G. 18 Oct., 1965 [16 Oct., 1964], No. 44016/65. Heading F2A. [Also in Division F4] In a method of maintaining the transportation of lubricant in a refrigerant cycle in which the refrigerant is successively compressed, liquefied, collected, expanded from the liquid phase by throttling, and evaporated; output refrigerant in the gas phase is withdrawn before the throttling step, passed through a separate path which by-passes the throttling step, and is returned to the refrigerant cycle upstream of a location in the cycle where an undesirable accumulation of the lubricant can occur. In an embodiment, the refrigerant circuit comprises a compressor 1, a condenser 2, a collector trap 3, a throttling device 4 and an evaporator 5. A by-pass 8 leads from a vapour-space 6 of the collector trap 3, includes a spill-valve 7, and connects with the circuit after by-passing the throttling device 4. Conveniently the by-pass 8 may be provided with separate return branches 9, 10 and 11, each having a shut-off device 12, 13 and 14, respectively, so that a number of locations having an undesirable accumulation of lubricant may be relieved. The by-pass may also serve to connect the output side of the compressor with the inlet side of the evaporator so as to occasionally de-freeze the latter.
Patent GB-1405445-A (GB)
Title: Transistor circuits
IPC: H03F1/30
Filed: 1972-09-22
Abstract: 1405445 Automatic voltage regulation SONY CORP 22 Sept 1972 [25 Sept 1971 (2)] 44022/72 Heading G3X [Also in Divisions H2 and H3] A D.C. power supply circuit comprises a series transistor controlled by a further transistor, the base of which is connected to the junction of a capacitor and a discharge device across a D.C. source.  As shown in Fig. 6, a series transistor 14 produces a regulated voltage output under steady state conditions under the control of Zener diode 20. When a smoothed D.C. input is first switched on across input terminals 6a, 6b, Darlington connected transistors 21, 22 conduct until capacitor 9 is fully charged. These transistors then turn off, allowing base current to flow to series transistor 14. The output voltage thus rises slowly until the steady state is reached, the rate of voltage rise depending on the capacitor 9, the resistor 12, and the current amplification of the transistors 21, 22. When the source is disconnected, capacitor 9 discharges rapidly through diode 8 and an external load circuit. The arrangement is designed for supplying an amplifier in a radio receiver, and the slow initial voltage increase together with rapid voltage fall at switch-off prevents amplification of switching noise. In other embodiments, a single transistor may replace the Darlington pair 21, 22, or a pair of transistors may be used in place of series transistor 14. Also, two Zener diodes may be connected to the base of transistor 14 and a further Zener diode may be connected in the output line to introduce a time delay after switch-on, Fig. 8 (not shown). The circuit may be used to convert a squarewave input to a ramp waveform, Figs. 4A-4B (not shown). An audio amplifier is also described, Fig. 10 (not shown).
Patent GB-1488549-A (GB)
Title: Anti-caking products for treating pulverulent or granular substances such as fertilizers
IPC: C05G3/30
Filed: 1975-10-27
Abstract: 1488549 Anti-caking agent UNION MINERALE 27 Oct 1975 [7 Nov 1974] 44098/75 Headings ClA and ClB An anti-caking agent particularly suitable for improving the free flowing properties of granular fertilizers comprises at least 90% of an inorganic filler and no more than 10%, preferably 0À1-5% of a mixture of a fatty alcohol of formula RCH 2 OH where R is 8-24 C hydrocarbon radical and stearylamine. The inorganic filler may be kaolinite, calcium carbonate, kieselguhr or talc. The surface active mixture on the filler preferably consists of 50-80% stearylamine and 20-50% of the fatty alcohol. Oleic, lauryl and stearic alcohols are specified. In the example the anti-caking agent is used to treat a 17, 17, 17 fertilizer.
Patent GB-1027606-A (GB)
Title: Improvements in or relating to extendible and retractible endless conveyors
Inventor: DAVIES ERIC LAWRENCE
IPC: B65G21/14
Filed: 1963-11-09
Abstract: 1,027,606. Extensible conveyers. DAVIES, PRITCHARD & RICHMOND Ltd. Oct. 28, 1964 [Nov. 9, 1963], No. 44282/63. Heading B8A. A conveyer means for loading and unloading goods on road vehicles comprises a fixed frame 10 on which the boom 16 is extendibly and retractibly mounted, and an endless belt 20 arranged to run on rollers 21, 22, 23, 24, 25, 26 carried by the frame 10 and boom 16. The boom 16 is mounted and guided by vertical and horizontal rollers 13, 14, 15, the rollers 13 of which are adjustable to compensate for wear. The boom 16 has a rack 17 along its base, engageable by a pinion electrically driven through a reduction gear 18 on the fixed frame 10. Switch means for controlling the boom 16 may be mounted on the nose 16a thereof and cable fed to this nose via a winch drum 40 on the frame 10. The belt 20 driven from a motor driven pulley 26 is tensionable by adjustable pulley 25. Flaps 33 pivoted to sidewalls 32 are used to operate switches 34 when counting of goods conveyed is required.
Patent GB-1006525-A (GB)
Title: Promotion agents in the sulphation of oxidized nickel and cobalt bearing ores
IPC: C01G53/00
Filed: 1963-11-11
Abstract: In a process for the recovery of nickel and cobalt values from oxidic nickel and cobalt bearing ore which contains at least 25% iron by weight, as is described in Specification 998,230, in which said ore is roasted with a sulphating agent to convert the cobalt and nickel values to water-soluble sulphates, there is added to the ore as a sulphation promotion agent a substance containing magnesium, potassium or sodium or mixtures of these elements in an amount sufficient to provide at least 1.0 weight per cent of the ore of magnesium or sodium or at least 0.2 weight per cent of the ore of potassium, the sodium to magnesium weight ratio being, when both are present, below 0.5 or above 1.5.  The sulphation promotion agent may be added as hydrous magnesium silicate as found in serpentine or garnierite, MgSO4, MgCl2, magnesium silicate, Na2SO4, NaCl, K2SO4, KCl, soluble sodium silicate, sea water or brackish water.  The promotion agent in solution may be added to make up water in which the ore is slurried, or to the starting ore materials, or, in solid form, may be blended with the ore before sizing or mixing. As in Specification 998,230, the nickel and cobalt sulphates extracted may be converted to the sulphides by conventional means. Specifications 798,478 and 895,976 also are referred to.
Patent GB-1491485-A (GB)
Title: Vehicle brake applying means incorporating automatic slack adjusters
IPC: F16D65/56
Filed: 1974-10-16
Abstract: 1491485 Actuators; slack adjusters GIRLING Ltd 22 Sept 1975 [16 Oct 1974] 44743/74 Heading F2E A brake actuator incorporates a spring assembly 4 operable via a carrier 1, a slack adjuster 11 and a ram 14 to apply a brake applying load to a clevis 3; the slack adjuster 11 comprises an adjuster nut 12 fixed to the carrier 1 and threadably engaged with an adjuster screw part 13 and acting on the ram 14 through a spring 15 and a spring carrier 16, and the screw part 13 is connected to an axially fixed ball screw 8 via a ratchet and clutch assembly 19, which ball screw 8 has mounted thereon a ball nut 7 coupled to carrier 1 and is rotatable through reduction gearing 9 by an electric motor 10 to hold the actuator in a brake released condition with spring assembly 4 compressed. The ratchet and clutch assembly 19 comprises a first ratchet member 20 rotatably coupled to an extension 17 of ram 14, and a second ratchet member 22 rotatably mounted on extension 17 for angular movement through a limited distance, a drive pin 26 projecting into a recess 27 limiting such rotation; the ratchet members 20, 22 have mating ratchet faces arranged to permit relative movement in one direction only when the faces are engaged. A clutch housing 29 rotatably mounted on a plain portion 30 of ball screw 8 is coupled to portion 30 by a one-way roller clutch 33 and is slidably keyed to ratchet member 20 by means of a key 34. The clevis 3 is carried by an integral rod 35 coupled to the ram 14 through a ratchet assembly 36-44 to permit relative movement between the clevis 3 and the ram 14 in both directions. To operate the actuator, the voltage to motor 10 is reduced, and the spring assembly 4 acts on the clevis 3 via elements 12, 13, 15, 16, 14. When a resistance greater than the load exerted by spring 15 is encountered, the spring 15 is compressed to allow an abutment face 45 on carrier 16 to engage a complementary face 46 on the adjuster screw part 13, thereby applying the full force of the spring assembly 4 to the clevis 3 and causing the ratchet faces to separate. During brake actuation the ball screw 8 is caused to rotate by axial movement of nut 7 and the clutch 33 prevents rotation of screw 8 being transmitted to ratchet member 20. When the brake is released by energizing motor 10 rotation of screw 8 is transmitted to ratchet member 20 which is subsequently transmitted to ratchet member 22 as abutment faces 45, 46 separate. The rotation of ratchet member 22 continues until pin 26 abuts the end wall of recess 27-if at this stage the carrier 1 has not engaged an abutment face 47, then screw part 13 is caused to rotate; the rotation of the screw part 13 being transmitted to the ram 14 through a key 18-the ratchet assembly permits the ram 14 to rotate with respect to the clevis 3. The ratchet assembly permits the slack adjuster to be wound back without having to disconnect the clevis 3 from the brake mechanism.
Patent GB-1490367-A (GB)
Title: Treatment of waste gases from combustion furnaces
IPC: B01D53/68
Filed: 1974-10-16
Abstract: Heavy or toxic metal-containing exhaust gas from combustion furnaces is scrubbed for example using water which circulates. The water in this case is enriched with the metals scrubbed out from the exhaust gas. Ferrous ions and alkali are added to the enriched scrubbing water. In addition, an oxidising gas is bubbled into the enriched scrubbing water. As a result, the majority of the ferrous ions are oxidised and crystal particles which contain ions are precipitated from the water. These crystal particles are then separated from the liquid phase, as a result of which a secondary contamination can be avoided.
Patent GB-1140846-A (GB)
Title: Improvements in and relating to boat hull constructions
IPC: B63B5/00
Filed: 1964-11-03
Abstract: 1,140,846. Hulls with detachable bottoms. C. MUDIE. 3 Feb., 1966 [3 Nov., 1964; 6 Jan., 1965], Nos. 44846/64 and 637/65. Heading B7A. A boat has a working or planing bottom surface 4 separate from, but detachably connected (at 5) to, the buoyant hull 2 and extending over the length of the hull. The boat may have an energy absorbing system or energy absorbing means to reduce the transfer of shock loads from the planing surface 4 to the hull 2.
Patent GB-1479000-A (GB)
Title: Drainage pipes
IPC: B29C49/00
Filed: 1974-10-16
Abstract: 1479000 Moulding and perforating pipes H-J BAAR 16 Oct 1974 [16 Oct 1973] 44902/74 Heading B5A [Also in Division F2] Relates to a corrugated plastics drainage pipe (see Division F2). A corrugated plastics pipe 1 is formed by passing flat unhardened extruded tube 1 into a mould comprising two endless open-link chains 8, 8<SP>1</SP>, having moulding links 9 each enclosing one half of the pipe circumference. As the flat pipe 1 is fed into the moulding region over guide bar 10, air blown through openings 13 forces the unhardened pipe 1 against the corrugated inner surface of the links 9. Links 9a spaced around endless chains 8, 8<SP>1</SP> co-operate in the moulding region to form annular channel 4, which when in engagement with openings 18, fed by air via inner pipe 14, and vacuum connections 19 has intake openings formed therein. Indentations only may be formed in the annular channel 4 which are subsequently opened out into intake openings after hardening of pipe 1.
Patent GB-1465719-A (GB)
Title: Utilization of amido-acids for the production of aqueous fluids for the working of metals
IPC: C10M173/02
Filed: 1974-10-17
Abstract: 1465719 Lubricants AQUILA SpA 17 Oct 1974 [18 Oct 1973] 45046/74 Heading C5F [Also in Division C2] Aqueous solutions of at least one alkali metal salt and/or amine salt and/or ammonium salt of an amide acid of formula wherein R is a hydrocarbon group substituted by one or more chlorine atoms, and having 9 to 25 carbon atoms, and n and n<SP>1</SP> are integers or zero, identical or different whose sum (n+n<SP>1</SP>) = 1 or 2 are used as metal working fluids. The fluid may also contain at least one alkali metal salt and/or amine salt and/or ammonium salt of the orthophosphoric mono- and/or diesters of fatty alcohols and/or of fatty acid-alcohols, the esters having chlorine atoms in the carbon chain and with the formulae where Z is a C 10 -C 20  chloroalkyl group with at least two chlorine atoms and Z<SP>1</SP> is hydrogen or a C 10 -C 20  chloroalkyl group with at least two chlorine atoms identical or different to Z, Z and Z<SP>1</SP> each having an even number of substituent chlorine atoms, each pair of substituent chlorine atoms being located on adjacent carbon atoms.
Patent GB-1211863-A (GB)
Title: Improvements in or relating to electrostatographic carriers
IPC: G03G9/113
Filed: 1967-10-04
Abstract: 1,211,863. Electrostatographic developers. RANK XEROX Ltd. Oct. 4, 1967 [Oct.11, 1966], No.45221/67. Heading G2H. [Also in Divisions B2, C3 and H1] Electrostatographic carrier particles comprise a core coated with a polyphenylene oxide resin. Preferably the resin is of formula: (in which R<SP>1</SP> and R<SP>11</SP> are each H or alkyl having together up to 12 C atoms, and n is at least 25), and is preferably mixed with a second resin, e.g. optionally modified natural, polyolefine, polyvinyl, acrylic, polystyrene, polyvinylidene, fluorocarbon, polyester, polyurethane, polysulphide, polycarbonate, epoxy, phenolic and formaldehyde resins and copolymers of unsaturated organo-silicon compounds with other unsaturated monomers. The core may be NaCl, NH 4 Cl, AlKCl 4 , Rochelle salt, NaNO 3 , KClO 3 , Zr, Si, methyl methacrylate, glass, SiO 2 , flintshot, Fe, steel, ferrite, Ni, and/or SiC.
Patent GB-949451-A (GB)
Title: Improvements in optical scanning systems
IPC: G06V10/10
Filed: 1962-12-03
Abstract: 949,451. Automatic character readers. NATIONAL CASH REGISTER CO. Dec. 3, 1962 [Feb. 10, 1962], No. 45492/62. Heading G4R. In an optical scanning apparatus for a character reader comprising a lamp 10, Fig. 1 to illuminate the record 12 and photo-cells 30a-30d responsive to light reflected from the record, a mirror-like reflecting surface 35 is provided behind the record at the scanning position. This mirror serves to reduce the noise signal due to dark specks &c. on the paper. The character image is passed by mirror 25 and lens 28 to a scanning ring having four groups of four holes, light passing through the holes being conveyed by light guides 26a-26d to the photo-cells. The mirror surface 35 may have up to 15% transmission so that an image of the characters may be viewed in the mirror 45.
Patent GB-1344159-A (GB)
Title: Acidic etching solution and a method of etching copper and copper alloys therewith
IPC: C23F1/18
Filed: 1971-09-30
Abstract: 1344159 Etching TOKAI DENKA KOGYO KK 30 Sept 1971 [26 April 1971] 45643/71 Heading B6J An etching solution for copper or alloys thereof contains (a) a peroxysulphate anion, and (b) an azole. A halogen containing compound (c) may also be present. Examples of (a) are ammonium, potassium, sodium and lithium peroxymonosulphates, the corresponding peroxydisulphates and also those of barium and strontium. Numerous examples of (b) are given. Examples of (c) are hydrofluoric, hydrochloric, hydrobromic and hydroiodic acids and their salts, oxides of fluorine, chlorine, bromine and iodine, oxyacids of chlorine, bromine and iodine including salts thereof, organic halides such as dichlorocyanuric acid and salts thereof, 1-chlorodiethyl ether and organic acid halides. The etching solution may also contain phosphoric and/or sulphuric acid. The mask may be metal or photoresist. The copper alloy may be brass, bronze, beryllium copper or constantan.
Patent GB-1456469-A (GB)
Title: Action figure toy
IPC: A63H3/20
Filed: 1974-10-22
Abstract: 1456469 Figure toys MARVIN GLASS & ASSOCIATES 22 Oct 1974 [15 Nov 1973] 45652/74 Heading A6S Inward depression of plate 48 pivotally mounted on the back of a figure toy causes, via a rack 94 and pinion 92, rotation of a shaft 80 rigidly connected to a movable upper arm portion 62 which has pivotally connected thereto a lower arm portion 66, and due to rod 90 connecting the lower arm portion 66 at a point off-centre of the pivot to an eccentric hole 84 in a disc member 82, mounted on shaft 80, the arm portions are moved relative to one another and to the torso to simulate a thrusting movement. Disc member 82 has a D-shaped collar 86 fixedly secured thereto and abutted by leaf spring 88, which when abutting the flat side of collar 86 prevents rotation of disc member 82 about shaft 80 until a sufficiently large torque is applied to member 82 by rod 90. Leaf spring 96 acting on plate 48 returns arm 16 to its original position when pressure on plate is relieved. In the embodiment shown the figure toy also has a swingable arm 20 having portions 54 and 56 pivotally connected and leg members 24 and 26 with pivoted joints. Hip joint 22 comprises leg mounting members 152 and 154 journalled in openings 172 and 174 of housing 150 to which legs 24 and 26 are pivotally connected. Leg mounting members 152 and 154 carry protrusions 182 which engage with recesses 170 in housing 150 to retain the leg mounting members in a certain position. Rubber band 160 is attached to a pin 162 in head 23 and a transverse member in housing 150 thus holding head 23, torso 18 and hip joint 22 together and permitting relative movement therebetween.
Patent GB-1298097-A (GB)
Title: Method for gain control or amplitude modulation of field-effect transistor
IPC: H03G1/00
Filed: 1970-09-25
Abstract: 1298097 Gain control in semi-conductor circuits; amplitude modulation KOGYO GIJUTSUIN 25 Sept 1970 [24 Nov 1969] 45724/70 Headings H3R and H3T A transistor which is at the sametime a fieldeffect transistor and bipolar transistor is used for gain control or amplitude modulation. In a gain control arrangement the signal is applied to the gate G and taken from the drain/collector D, while the gain controlling voltage which is positive-going for an NPN device, is applied to the base via a resistor 12. In an amplitude modulation arrangement the carrier signal is applied to the gate and a modulating signal, together with a positive bias voltage, to the base.
Patent GB-1021026-A (GB)
Title: Clutch trip mechanism for keyboard-controlled printing telegraph apparatus
IPC: H04L13/16
Filed: 1962-12-04
Abstract: 1,021,026. Telegraphy. TELETYPE CORPORATION. Dec. 4, 1962 [Dec. 14, 1961], No. 45731/62. Heading H4P. The distributer clutch trip mechanism in a keyboard telegraph transmitter is so arranged that when a character key is depressed the clutch is released for one revolution only, even if the key is maintained depressed, by means of a number of interacting levers supported on a common shaft. A repeat key is provided which allows a character to be repeated so long as both keys are depressed. The character keys and the associated code bars are arranged substantially as described in Specification 1,021,023, the code bars operating contacts as in Specification 1,021,024. The interacting levers are shown in Fig. 6, and Fig. 4 shows a portion of the apparatus including these levers. Depression of any character key moves bar 98 down causing trip lever 104 to move clockwise. End 105 bears against arm 113 which extends over blocking lever 116 so that levers 114 and 116 also move clockwise. Arm 66 (Fig. 4) is the clutch tripping arm and normally bears on surface 109, but when a key is depressed the blocking lever releases arm 66 which moves upwards to bear on arm 157. This movement releases the clutch for one revolution and it also moves lever 114 upwards thereby disengaging arm 113 from end 105 so that levers 114 and 116 can move anticlockwise to their original angular position. By means of a triproller on the clutch, lever 66 is lowered after one revolution so that it latches beneath surface 109 and lever 114 lowers to its rest position. When the lever 66 is in its upper position it engages with arm 46 on each of the levers 39, which are moved by the code bars, and so locks the code bars in position until the character has been transmitted. The repeat key, when depressed, moves arm 150 downwards so that surfaces 154 and 155 engage, a character key having been depressed. Thus, when lever 114 moves anti-clockwise as described above, lever 116 now is unable to move anticlockwise whereby arm 66 is not latched under 109 to stop the clutch. So long as both keys are pressed the character repeats.