baber/WOPTO huggingface dataset:
Patent GB-1482241-A (GB)
Title: Circuit for the automatic tuning of a receiver
IPC: H03J7/04
Filed: 1975-05-05
Abstract: 1482241 Automatic tuning circuit for a TV receiver INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 5 May 1975 [8 May 1974] 18814/75 Heading H3A A TV receiver capable of receiving a carrier frequency signal PV modulated with picture signals and at least one further signal PS modulated with sound signals, and containing a local oscillator 3, an IF amplifier 5 having the frequency response curve of Fig. 2, and a detector 10, 20, also incorporates an automatic tuning circuit comprising means 23 for generating a control signal dependent on the ratio between the amplitudes of respective signals representative of the amplitude of the detected PV signal and the amplitude of a detected signal of another frequency, the control signal being fed to oscillator 3 so that its frequency is adjusted to maintain the said detected amplitudes in a predetermined ratio. The second signal may be signal PS, or the colour subcarrier signal PC; it may also be an auxiliary signal injected into the received TV signal (e.g. of half the frequency of PC) and may be injected into alternate lines, the other lines being injected with the colour reference signal. Means 23 may be a differential amplifier. The signal representing the amplitude of PV may be derived from the AGC circuit 6, 10 of the IF amplifier 5. If the second signal is PC, then the signal representing its amplitude may be derived from a detector circuit 20 sensitive to the amplitude of the colour reference signal, or alternatively from the AGC circuit of the chrominance channel 9, 19-21, 25. Oscillator 3 may be a voltage controlled oscillator incorporating a varicap diode. The tuning circuit may be put out of action, when monochrome signals are being received, by means of a manually operated switch 24 or an electronic switch controlled by the colour suppressor circuit. The remainder of Fig. 1 shows a conventional TV receiver, with mixer 4, audio channel 7-15, sync separator 11, luminance channel 8 &c., deflection generators V, H, a decoder 22 producing B-Y, R-Y signals and a matrix 16 producing R, G, B signals.
Patent GB-813024-A (GB)
Title: Printing machine for use with cylindrical articles
IPC: B41F17/22
Filed: 1957-06-17
Abstract: 813,024. Printing on cylindrical surfaces. GUERCHET, P. F. June 17, 1957 [June 16, 1956], No. 19001/57. Class 100(2) Mechanism for printing on the surfaces of cylindrical articles 3, comprises a rotatably mounted distributer drum 4 having grooves 5 on its periphery for receiving articles to be printed, an arcuate guide 7 to retain the articles in the grooves over a predetermined arc of rotation, and a printing member 10 mounted within the drum for co-operation with the articles in succession as they reach printing position. The articles 3 to be printed, which may be phials of glass or of deformable material, are stored in a hopper 1 formed of converging walls 2, 2<1>. The articles drop into the grooves 5 and are brought by rotation of the drum 4 into printing position adjacent a yieldable pad 9 of rubber or foamed resin. The pad 9 is adjustable radially of the drum 4 by a plate 8 secured to the guide 7 by screws for varying the printing pressure. The printing roller 10, mounted within the drum 4, is driven through a gear, not shown, on the shaft of the roller 10. The roller 10 co-operates with a type roller 13 inked by a roller 14 engaging a roller 15 dipping in a trough 16. The rollers 13, 15, and 16 are driven through gearing, not shown, by the shaft of the roller 10. The speed of the roller 10 is selected by the gear ratio of the drive thereto so that the relative linear velocity between the roller 10 and the article 3 is substantially zero.
Patent GB-140492-A (GB)
Title: Removeable shuttering for use in construction of concrete buildings and structures
IPC: E04G11/14
Filed: 1918-11-20
Abstract: 140,492. Towle, G., and Herbert, G. Nov. 20, 1918. Casting in situ.-Removable and interchangeable shuttering C is secured in position to grooved uprights A, preferably of metal, by means of lugs D and latches E. The uprights A are positioned by means of shouldered distance-pieces B tapered to facilitate removal. Several shutters may be secured together to form a unit. Uprights for external and internal corners are of right-angled form. Where the shuttering is used for floors and roofs, the uprights are laid appropriately and strengthened and supported, if necessary, by ternporary centering. As the casting progresses, the lower shuttering may be removed and placed in other positions as desired. The shutters may be indented at the edges or perforated to allow access of air to the work and to permit reinforcements to be put in position if desired. The shuttering may be embossed.
Patent GB-186031-A (GB)
Title: Improvements relating to automatic reclosing electric circuit interrupters
IPC: B60M1/10
Filed: 1922-07-11
Abstract: 186,031. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Reagan, M. E.). Sept. 16, 1921, [Convention date]. Protective arrangements as described in Specifiration 162,267 applied to the automatic resetting of a circuit interrupter by means of a Wheatstone bridge connection of resistances when the overload is reduced to a predetermined value are applied to the automatic resetting of a sectionalizing switch. As shown, for automatically reclosing the sectionalizing switch 4 between sections 1, 2 of a tramway supply system when the abnormal conditions on either of the sections is removed, the excess current opens the relay 8 and breaks the circuit of the closing and maintaining coil 6 of the sectionalizing switch. The relay 8 again closes but the coil 6 is not again energized until relays 10, 11 (which are normally closed, and open on overload) close again. If, for example, a short-circuit occurs on section 2 the sectionalizing switch opens as described; in addition the relay 11 opens as the current through its operating coil has now to traverse the resistance 9 connected across the switch 4. The operating coil forms the galvanometer connection of a Wheatstone bridge constituted by the resistance 9, the faulty load circuit 2, 12. and resistances 24, 13 connected as shown in Fig. 1, which, in effect, is the Wheatstone bridge arrangement shown in Fig. 3. When the resistance of the load circuit increases to a predetermined degree, capable of fine adjustment by varying the resistances of the arms of the bridge, the current in the coil of the relay 11 becomes sufficient to close the relay and complete the restoring circuit of the sectionalizing switch. In a modification, resistances are arranged in shunt to the operating coils of the relays 10, 11 to limit the normal current therein, the resistance being in turn shortcircuited by auxiliary contacts on the relay 10 or 11 and the sectionalizing switch, in series, when in the open position.
Patent GB-894884-A (GB)
Title: Improvements in filing racks
IPC: B42F15/00
Filed: 1960-05-30
Abstract: 894,884. Filing papers; gramophone record envelopes. KLEIN, A. May 30, 1960 [May 30, 1959], No. 19112/60. Classes 146(1) and 146(2) A rack for filing flat articles, especially gramophone records, comprises a horizontally mounted rod 13 and a plurality of rectangular envelopes 11 and suspension means secured at one corner only of each envelope pivotally engaging the rod to suspend the envelopes 11 individually therefrom. As shown, the suspension means consist of a hook 12, formed in a resilient binding 15 of thicker more resilient material than that of the envelope. The envelopes 11 are of thin synthetic plastic material, e.g. polythene and are transparent to facilitate recognition of the contents of a particular envelope.
Patent GB-596278-A (GB)
Title: Improvements in or relating to metal skeleton structures
IPC: E04B1/24
Filed: 1945-07-26
Abstract: 596,278. Metal framework joints. PRESSED STEEL CO., Ltd., and MORPHEW, L. R. July 26, 1945, No. 19132. [Class 20(ii)] [Also in Groups XXXII and XXXIII] Relates to the joints of metal framework, particularly applicable to the chassis frames of vehicles and also to aircraft and buildings, and consists in forming the metal in the web of a channel-sectioned main or primary member where it is to be joined to a secondary member with a conformation consisting of lugs, flanged holes, bulges &c., the secondary member being of channel, angle or closed cross - section, uniform throughout, and mating at its end with the conformation in the primary member. The members are secured together by welding or riveting so that the load at the joint is taken in shear. Numerous applications of the invention are described and shown, examples of which are as follows. As shown in Fig. 1, the primary member 11, a chassis frame side member with the channel opening facing outwards, has an inwardly directed bulge 13, 14 formed in its web. The secondary member 12 is also of channel section, and its web mates at 15 with the surface 14 of the bulge in the primary member, the surfaces being spot-welded together. The flanges of the member 12 also embrace the flanges of the member 11, and are joined to them by spot-welding. In the example shown in Fig. 7, the web of the primary member 11 is apertured and a flange or lug 32 thereby formed, to which the web of the secondary member 12 is spot-welded, the flanges of the member 12 being in this case enveloped by those of the member 11 and spot welded thereto. Figs. 9 and 10 show a hole in the web of the primary member 11, with a flange 33 to which the web of the secondary member 12 is spot-welded. The flanges 36 of the secondary member are enveloped by the flanges 37 of the primary member and welded thereto. The conformations in the primary members may be suitable for different sections of secondary members, for example a circular flanged hole 43, Fig. 14, may be formed for a semicylindrical secondary member 12. Additional components such as plates may be incorporated e.g. Fig. 14 shows in edge view a top panel 46 welded to the flanges 45 of the secondary member 12 and to the upper flange of the primary member 11.
Patent GB-323747-A (GB)
Title: Process for coagulating or precipitating viscose
IPC: D01F2/08
Filed: 1928-07-02
Abstract: 323,747. Lilienfeld, L. July 2, 1928. Cellulose xanthates, processes for making films from.-For the coagulation of viscose as in the manufacture of films, there is employed a caustic alkali solution of, for example, 18-65 per cent strength or an alkali sulphide solution of, for example, 30-100 per cent strength, in either case the solution being at a raised temperature of say 50-140‹ C. To the coagulation bath there may be added agents such as sodium chloride, sulphate, silicate, aluminate, zincate, phosphate, acetate, or thiosulphate, or borax; examples are given illustrating the use of caustic soda and sodium sulphide solutions saturated with sodium silicate, the solutions being maintained at 50-104‹ C. The duration of the treatment with the coagulation bath depends on the thickness of the film; after coagulation, the film is immersed in boiling water, is then washed with cold water, and is finally dried.
Patent GB-426733-A (GB)
Title: Improvements in and relating to machines for the manufacture of hollow blown glass articles
IPC: C03B9/20
Filed: 1933-07-06
Abstract: 426,733. Glass manufacture. REDFERN, F., 12, Mark Lane, London. July 6, 1933, No. 19172. [Class 56] Relates to a suction-gathering machine for blowing glassware, and consists in providing each of the heads, which carry the ring moulds and parison moulds, with a valve, slide, or cover mechanism for enabling the change from suction to blowing to be effected, the valve being so constructed as to form a seat for the neck-forming plug when the parts are in the suction position. Each head comprises an upper part 4 and a lower part 5 between which a metal plate or valve 6 slides. Coaxial openings 7, 8 in the parts 4, 5 respectively, permit the passage of a neck-forming plug or mandrel 29 which moves vertically into or out of the ring mould R. The upper part 4 is also formed with a suction passage 9 and a passage 10 for compressed air, while the lower part 5 has a passage 11 for compressed air and also suction passages 36. The valve plate 6 is pierced with apertures 12, 14, and also with a larger aperture 13 which is connected with the aperture 14 by a groove 15. The plate reciprocates horizontally, and in one position the aperture 12 connects the passages 10 and 11, while in the position shown the aperture 13 is in alignment with the openings 7 and 8, and the groove 15 connects the suction passage 9 with the space within the ring mould. The plug 29 is carried by a bracket 28 projecting from a member 19 which slides between vertical guides 18 secured to the head. The member 19 carries on one face a rack 24 which meshes with a pinion 25 that receives timed revolutions in both directions from suitable mechanism and thus raises and lowers the plug 29. The other face of the slide 19 is formed with a slotted cam 20 which oscillates a lever 17 connected to lugs 16 on the valve plate 6, so that the vertical movement of the plug causes horizontal movement of the plate 6. The stem of the plug 29 is surrounded by a sleeve 30, and a second sleeve 32 slides on the sleeve 30 and is pressed downwards by a spring 35. When the plug is lowered into the ring mould, as shown, the sleeve 32 makes a cushioned seating on the plate 6 and seals the aperture 13.
Patent GB-120927-A (GB)
Title: Improvements in or relating to Alarms.
Inventor: GERARDUS WILHELMUS VAN DILLEN
IPC: G08B13/22
Filed: 1918-11-21
Abstract: 120,927. Dillen, G. W. van. Aug. 2, 1917. [Convention date]. Void [Published under Sect. 91 of the Act]. Theft and like alarms.-An alarm particularly for movable articles such as safes, money boxes, &c. is controlled by a ball d projecting through, but clear of, an opening in the bottom b of the box &c., and resting on the floor, table, or other support on which the box &c. is placed. A spring contact carries a pin g resting on the top of the ball. When the box &c. is moved or lifted, the ball rolls, or projects through the opening, so as to contact with the side of the opening and close the alarm circuit, which, as shown, includes a bell o, v, wand battery e. The free end of a lever k is released on the attraction of the bell armature, and falls so as to bridge contacts p in a circuit in parallel with that closed by the ball, so that the bell continues to ring. A lever i is provided to centre the ball with respect to the orifice when setting the device, and this lever is controlled by a second lever m, to which access can only be had by opening the box &c. The lever m controls also contacts x, y, in the alarm circuit.
Patent GB-1001489-A (GB)
Title: Improvements in or relating to light projectors
IPC: F21S8/10
Filed: 1962-05-18
Abstract: 1,001,489. Projector lamps. C. R. FULLER, and E. B. MYERS, [trading as FULLERMYERS]. May 18, 1962, No. 19258/62. Heading F4R. [Also in Division H1] A light projector especially for use as a vehicle lamp comprises a trough-shaped reflector of circular, parabolic, hyperbolic or like cross-section and an incandescent planar ribbon filament in an axial plane passing through the transverse centre line of the surface parallel to the reflector, the opposite faces of the ribbon lying in the axial plane so that two like light beams are produced from the upper and lower halves of the reflector respectively. A shield may be provided on the side of the filament remote from the reflector to cut off direct light. The resulting light beams may be parallel or may overlap at a distance from the projector. The two halves of the reflector may be covered by colour filters. The lamp and reflector may be mounted in a rectangular housing or may form part of a sealed beam lamp. Fig. 1 shows the reflector 12 and a separate lamp 10 consisting of a tubular glass envelope 13 having metal end caps 14, 15 carrying support rods 16, 17 for the filament 18.
Patent GB-1434337-A (GB)
Title: Process for producing cyanogen by oxidizing hydrocyanic acid
IPC: C01C3/00
Filed: 1974-05-02
Abstract: 1434337 Cyanogen manufacture ASAHI KASEI KOGYO KK 2 May 1974 19301/74 Heading C1A Cyanogen is produced by reacting hydrocyanic acid with oxygen, or a mixture of oxygen with an inert gas, e.g. air, in an aqueous solution of copper nitrate as catalyst. The reaction temperature may be 10‹ to 75‹ C., the pH may be - 0À5 to 1À5 and the concentration of copper nitrate 0À5 to 3 moles/l. The aqueous solution may also contain nitrates of alkali metals, alkaline earth metals or aluminium. In one embodiment (see Fig. 1) the catalyst solution is placed in reactors 1 and 1<SP>1</SP> and it is recycled through packed columns 2 and 2<SP>1</SP> by fixed delivery pumps 3 and 3<SP>1</SP>, respectively. At the same time, the catalyst solutions in reactors 1 and 1<SP>1</SP> are recycled by. fixed delivery pump 4 between the two reactors. Hydrocyanic acid is fed from line 5 and oxygen or air is fed from line 6 simultaneously and continuously into reactor 1. The pH of the catalyst solution in reactor 1 is adjusted by adding nitric acid from line 8 equipped with a valve controlled by glass electrode 7. Produced gases rise through packed column 2 making contact with catalyst solution and pass through reactor 1<SP>1</SP> and packed column 2<SP>1</SP> in which the gases are further contacted with the catalyst solution and are collected in collect - ing bags 10 and 10<SP>1</SP> through control cocks 9 and 9<SP>1</SP>. By-produced nitrogen oxides are absorbed in the catalyst solution which is re-used by recycling. If the absorption of nitrogen oxides is not required a single reactor and column or two such reactors in parallel may be used.
Patent GB-1037182-A (GB)
Title: Improvements in mounting strips for fixed and sliding panels
IPC: B60J10/17
Filed: 1963-04-25
Abstract: 1,037,182. Guide and edging strips.- SOC. DITE LUXEMBOURGEOISE DE BREVETS ET DE PARTICIPATIONS. April 25, 1963 [April 25, 1962], No. 16363/63. Headings E1J and E1R. In a channel-shaped strip for use as a sliding panel guide or as a sealing fitting for a fixed panel and having a lattice work strip reinforcement formed of a zig-zag bent wire 1 the lateral edge wire portions are bounded by edgings 6 which are crimped over the edge portions to hold the edge wire portions in their initial relative spacings. The reinforcement so formed is embedded in a plastic material and a pile fabric is provided in the slideway and a strip of felt is glued to the bottom of the channel.
Patent GB-1108952-A (GB)
Title: Photographic camera for use with interchangeable film supply cartridges
IPC: G03B17/30
Filed: 1965-05-07
Abstract: 1,108,952. Photographic cameras. AGFA A.G. May 7, 1965 [May 8, 1964J, No. 19373/65. Addition to 1, 081, 429. Heading G2A. The film supply chamber 3 of a photographic camera is provided with a feeler 5, which engages a projection 2a of a film cartridge 2 so as to set an exposure meter 4 according to the film sensitivity, and with a resiliently movable holding member 9 which engages a stop surface 2d of the cartridge so as to accurately position the cartridge in the direction of the arrow 8, thus preventing faulty displacement of the feeler 5 due to manufacturing tolerances in the cartridge 2. The member 9 may comprise a leaf spring or a rigid plate spring Fig. 3 (not shown). In both embodiments the feeler 5 engages the member 9 when the cartridge is removed so as to prevent the member 9 from impeding the insertion of a new cartridge.
Patent GB-993709-A (GB)
Title: Improvements in or relating to a sound attenuating gas pipe
Inventor: LUDLOW EDMUND
IPC: F01N1/02
Filed: 1963-05-16
Abstract: 993,709. Silencers for gaseous flow. ARVIN INDUSTRIES Inc. May 16, 1963, No. 19579/63. Heading F1B An exhaust or intake silencer comprises a pipe 10 with a partition 22 therein forming a number of resonator chambers 20 which are connected to the main flow passage through throats formed by channelled members 26. The effective length of the throats may be adjusted by varying the position of the connecting orifice 32. The members 26 may be arranged inside the chambers 20 or as in Fig. 4, outside thereof. The partition 22 may extend for the whole length of the exhaust pipe 10.
Patent GB-496260-A (GB)
Title: Improvements in apparatus for cutting water weed growths
IPC: A01D44/00
Filed: 1937-07-15
Abstract: 496,260. Cutting water weeds. HOWARD, E. J., and DENNIS, C. July 15, 1937, No. 19591. [Class 6 (iii)] Apparatus for cutting water weed growths of the type comprising cutter arms drawn through the water and carried by a rod which is reciprocated while the boat is travelling is characterized by the arms being detachably fixed with either a forward or rearward inclination so that the device may be arranged to operate with the boat moving either forward or astern. The arms 1 are straight and have cutter blades 2 fixed on both sides. The inner ends of the arms are bolted to a bracket 3 so that they are inclined to each other either forwardly or rearwardly and the bracket is pivotally mounted on the end of an operating rod 4 that can be moved over a quadrant fixing plate 7 to adjust the depth of working. The angle of the bracket may be adjusted so that the arms are horizontal or so that they incline upwardly and outwardly. By dividing the lever 4 into two parts connected by a flanged coupling with many bolt holes, the lower portion with the bracket and arms may be adjusted around the axis of the upper portion. The bracket 3 may be provided with a skid 5 and may have blades 10 around its edge.
Patent GB-221620-A (GB)
Title: Improvements in air brake testing mechanism for fluid pressure engines
IPC: G01L3/20
Filed: 1923-08-01
Abstract: 221,620. Armstrong Siddeley Motors, Ltd., Smith, F. R., and Shilson, B. W. Aug. 1, 1923. Driving-gear.-In an air-brake dynamometer the fan blades are permanently fixed to a hut mounted on bearings upon some stationary mem ber such as the fan casing, the hub being connected to the engine to be tested through a flexible coupling. A long sleeve A is mounted on bal bearings B, B<2> in a stationary member C which may be part of a casing D enclosing the blades E. At one end of the sleeve a hub F is fitted which carries the blades E and to the hub is attached a short internally grooved sleeve H. A shaft J passes through the sleeve A and carries in recesses at each end a row of balls K, L. The balls K engage the grooves H<2> in the sleeve H while the balls L engage grooves M<2> in a ring M adapted to be bolted to a flange N on the crank shaft of the engine Z. The ball and groove devices K, H<2> and L, M<2> form universal joints permitting small angular movement and the fan when once balanced remains so and has not to be disturbed by the attachment of ar engine for test purposes.