baber/WOPTO huggingface dataset:
Patent GB-1473452-A (GB)
Title: Magnetic recording apparatus
IPC: G11B15/467
Filed: 1975-05-20
Abstract: 1473452 Automatic position control INTERNATIONAL BUSINESS MACHINES CORP 20 May 1975 [17 May 1974] 21617/75 Heading G3R Magnetic recording apparatus includes a rotating head about which a magnetic tape is helically wrapped. Misalignment between the head path and data tracks is measured so as to derive a skew error signal which is used to adjust the lateral separation between tape guides at each side of the wrap. As shown in Fig. 1, a tape 10 passes through an entry guide 12, around a stationary air bearing mandrel 14, and through an exit guide 16. A magnetic head 18 is rotated by a rotor 20 between the two halves of the mandrel 14, and picks up servo information from tracks at each edge of the tape. Detector circuits 22, 24 are actuated at appropriate times to receive the servo information from the respective edges. The difference between the deviations from alignment detected in the circuits 22, 24 gives a measure of the relative skew error between tracks on the tape and the path of the head 18, and an appropriate correction signal is fed by a network 26 to a DC motor 28 which moves the guide 12 so as to adjust the lateral position of the tape as it reaches the mandrel, thereby tending to correct the skew. Pre-set error correction signals can also be fed to the motor 28 to compensate for inaccuracies in the construction of the apparatus. The signals from detector circuits 22, 24 can also be combined to give an indication of lateral tape position error in a network 32 which controls a tape moving device 30. The adjustable tape guide 12 may also have an air bearing surface and is provided with a reference edge (36) moved by a screw arrangement driven by the motor 28 and a resilient edge (38), Fig. 2 (not shown). The angular position of the motor 28 may be measured by a tachometer with optical sensors. A stepping motor with associated counting circuits may alternatively be used. Another embodiment of the skew correction arrangement, Fig. 8 (not shown), includes cam-operated edge guides located on the mandrel itself. In this case, the tape is wrapped around 540 degrees instead of 360 degrees. Both entry and exit guides may be adjustable, possibly in a differential or sequential manner.
Patent GB-1386514-A (GB)
Title: Electrically conductive refractory oxides and methods of  preparing same
IPC: C04B35/42
Filed: 1972-05-09
Abstract: 1386514 Conductive refractories BROKEN HILL PTY CO Ltd 9 May 1972 [31 May 1971] 21626/72 Heading C1J An electrically conductive refractory R.E. being one or more of yttrium or a rare earth excepting Ce; A being one or more of Ca, Ba or Sr and y is 0À04-0À40, is prepared by milling together the appropriate oxides or their precursors, prefiring at 1400-1600‹ C. in a reducing atmosphere, milling the product, shaping and finally firing at less than 1700‹ C. The reducing atmosphere can be 95% N 2 +5% H 2 . Stabilized ZrO 2  or A.E. zirconate can be added before or after prefiring.
Patent GB-281396-A (GB)
Title: Improvements in or relating to the driving of metallic fasteners
IPC: A43D79/00
Filed: 1926-09-03
Abstract: 281,396. British United Shoe Machinery Co., Ltd., Roberts, W. T. B., and Barclay, W. R. Sept.;3, 1926. Loose-nailing.-A heelattaching - fastener inserting device has fastener bending means enabling fasteners supplied to the device by being dropped into it head downwards to be bent prior to being driven upwards into the work. As shown in a machine for attaching Louis and like heels, as described for example in Specifications 100,111 and 186,126 [both in Class 17 (i), Boots and shoes, Apparatus for making &c.], the post 1 accommodates a plunger 2 having a circular head 5 on which drivers 7 are secured with some play by a plate 6. Mounted on the post 1 is a tube 9 to the upper end of which is secured a ring 10 having a bevelled flange 11. The drivers 7 work in passages defined by spaced blocks 8 and by the tube 9 and the grooved edges of fingers 13 pivoted between the blocks. The upper ends of the fingers are curved to define, with the flange 11, inturned nail-bending passages. The fingers are constrained inwardly by a spring 14 but are normally held outwardly by lugs 20 on them engaging the head 19 of a tube 16 to which is secured a block 17 which is raised or lowered as the plunger 2 rises or descends, a recess in the plunger providing a lostmotion connection. At rest, the head 19 is raised from the lugs 20, and nails are dropped into the driver passages. The plunger then descends, spreading the fingers 13, and when the plunger again rises, driving the nails, the fingers are not released until the moment when the nail heads must pass out of the driver passages. During driving, the nails are bent inwardly by the flange 11. A driver 21 for a central unbent nail is removably arranged in the tube 16. The upper end of the tube 9 is closed by a plate 24 having nail apertures. The ring 10 is held in place by a shoulder 27 on it engaging a flange 28 on the shoesupporting block 29, which is tightened on the tube 9 by conical pointed screws 30. By loosening the block 29 the ring 10 may be rotated to bring a fresh portion into nail deflecting position.
Patent GB-789394-A (GB)
Title: Improvements in or relating to automatic telegraph exchange systems
IPC: H04L12/54
Filed: 1955-07-27
Abstract: 789,394. Telegraph exchange systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 27, 1955 [July 30, 1954], No. 21699/55. Class 40 (3). In a storing and retransmitting circuit for an automatic telegraph exchange system in which a route for retransmission of a message is selected in accordance with a code combinaation embodied in the message and designating its ultimate destination, the said code combination is recorded together with the text of the message by a device, such as a reperforator, in a tape or other storing means, and is simul. taneously applied to a routing circuit whereby an outgoing line can be selected so that the said code combination together with the text of the message can be retransmitted directly from the tape or other storing means. In the arrangement shown, an incoming transmitting line IL is connected by an idle line finder VK to a distributer device OV through which the selector code is passed over a finder RZ to a free register RG and also to the recording perforator OP of a transceiver RP. The selector code is prefixed and followed by the letters signal, and the distributer OV operates so that solely the selecting code passes to the register RG, whilst the whole message is recorded on the tape PB of the perforator OP. The selecting code is analysed by the register RG which passes a signal determining the desired outgoing line to a connecting circuit VC in which it is stored. At the same time the register RG is set free. At the end of the recording of the message the selector RK is set in accordance with the desired extension stored in the circuit VC, and when a line is free the complete message, including the selector code, transmitted by the device AP from the tape PB to the outgoing line UL.
Patent GB-903891-A (GB)
Title: Improvements relating to tunnel kilns
Inventor: GIBBONS WILLIAM ERNEST
IPC: F27D9/00
Filed: 1960-06-22
Abstract: 903,891. Tunnel kilns. GIBBONS BROS. Ltd. June 22, 1960, No. 21798/60. Addition to 849,495. Class 51 (2). The second indirectly cooled zone of the tunnel kiln for firing ceramics disclosed in the parent Specification has a recirculating system for the kiln atmosphere similar to that disclosed in the first rapid cooling zone. In both zones longitudinal flues 15 are disposed in the side walls at about the level of the kiln car floors communicating with the tunnel interior by ports 16, and a fan recirculates the gases through dampercontrolled roof-ducts 18 and downwardly-projecting nozzles 20. The recirculating system may be reversed. Cavity arches 38 are provided in the second zone, and panel cavities 40 in the side walls with cavity arches 41 in the final slow cooling zone, all these being supplied with cooling air.
Patent GB-964555-A (GB)
Title: High fidelity sound reproducer
IPC: H04R9/04
Filed: 1962-06-06
Abstract: 964,555. Loud-speakers. S. R. RICH. June 6, 1962 [June 14, 1961], No. 21941/62. Heading H4J. A loud-speaker, particularly for reproducing the higher audiofrequencies, comprises a pair of permanent bar magnets 11, 12 having poles on opposite long faces and having like poles confronting each other, with steel and plates 14, 15 and a spacer bar 13 supporting a diaphragm 26 of corrugated aluminium foil, and a voice coil 17 in the form of a flat spiral fixed to a platform 16 on top of the magnets, so that the voice currents induce eddy currents in the diaphragm. The loud-speaker may be provided with a wooden frame for convenient mounting in a casing. U.S.A. Specifications 1,577,254 and 1,643,791 are referred to.
Patent GB-1114958-A (GB)
Title: Motor vehicle drive trains
IPC: B60K17/35
Filed: 1967-05-11
Abstract: 1,114,958. Vehicle drive arrangements. GENERAL MOTORS CORPORATION. 11 May, 1967 [23 June, 1966], No. 21961/67. Heading B7H. A motor vehicle has front and rear axles 14 and 24 driven by an I.C. engine 30 through separate drive trains connected at either end of the engine crank-shaft, each drive train including a hydrodynamic torque converter 32, 36, drive shafts 34, 38, change-speed gearing 10, 20 and differential 12, 22, the converters 32, 36 apportioning the engine torque between the front and rear axles according to the loads on the wheels associated therewith at a predetermined vehicle operating condition, e.g. acceleration, aerodynamic effect. The change-speed gearings 10, 20 have two forward gears controlled by a lever 51, and the rear gearing 20 has additionally a reverse gear. The torque converters comprise a rotatable housing 40 attached to an impeller P, a turbine T and stator S.
Patent GB-1431199-A (GB)
Title: Variable impedance circuits
IPC: H01L29/43
Filed: 1973-05-09
Abstract: 1431199 Field effect transistors SONY CORP 9 May 1973 [13 May 1972 20 June 1972] 22085/73 Heading H1K [Also in Division H4] An IGFET comprises spaced source and drain regions formed in a surface of a substrate body or region of the opposite conductivity type, a layer of resistive material overlying the gate insulation and extending in insulation fashion over at least part of the source and drain regions, and two gate electrodes on said layer, the facing edges of the two gate electrodes being aligned with the facing edges of the source and drain regions. As described the substrate region is of 50 ohm. cm. resistivity and overlies a body of opposite conductivity type, the source and drain regions have a doping of 10<SP>19</SP> atoms/cc., and the channel between them is 20Á long and 300 Á wide. The resistive layer is 1 Á thick, consists of polycrystalline silicon with a surface resistivity between 10 K# and 30 G#/square, and overlies a 1200 Š layer of silica constituting the gate insulation. It is preferably more heavily doped beneath the two gate electrodes. Circuits utilizing the device are described.
Patent GB-430776-A (GB)
Title: Improvements in or relating to sheet metal containers for ether and like volatile substances
IPC: B65D8/00
Filed: 1934-07-28
Abstract: 430,776. Sheet-metal containers for ether &c. FEAVER, Ltd., J., 120, Tower Bridge Road, London, HOWARDS & SONS, Ltd., Uphall Works, SWANN, A., 4, St. Andrews Road, both in Ilford, Essex, and WILLIAMS, F. W., 120, Tower Bridge Road, London. July 28, 1934, No. 22103. [Class 66] A sheet-metal container for ether &c. is provided with a tubular pouring outlet 4, closed by an easily rupturable sheet metal capsule 6 secured to the outer end by solder at 5, and a filling opening 8 formed in a shallow recess in the base and closed by a stopper 10 which is secured in place by being expanded after insertion, the closed opening being covered by a sheet-metal sealing disc 12 of larger area than the stopper and secured in place by soldering along the edge at 13.
Patent GB-276376-A (GB)
Title: System of telegraphy or radio-telegraphy in combination with a typewriting machine adapted to ensure secrecy of messages
IPC: H04L27/26
Filed: 1927-08-23
Abstract: 276,376. Compare, M. Aug. 23, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 24, 1927]. Type-printing telegraphs.-In a secret wireless type-printing telegraph of the kind described in Specification 150,008, continuous-wave carrier oscillations are employed instead of damped oscillations. Each letter is represented by a combination of two or more modulation-frequencies emitted in succession. Transmitter. At the transmitter, Fig. 1, the carrier oscillation is modulated at different frequencies by the " vario-generators " A1 - - A9. The modulated oscillations are amplified at B and some of them are delivered to the outer plates E of a commutator. through leads I which can be plugged into the amplifier B in any desired order, so that the code mav be varied at will. The inner plates F of the commutator (which remains in a set position for any given code) are connected (a) to a set of wide contacts M and also (b) to a set of narrow contacts L and the connections are such that the brush O, which connects the lead P successively to one contact of each set, can select any pair of modulation frequencies. Thus, for instance, the contact. M1. yielding the first frequency, can be tapped immediately before or after any one of the first seven contacts L, which respectively yield the seven remaining frequencies. Receiver. The received signals, after amplification, act selectively upon resonators T1 - - T9, Fig. 2, and the two resonators corresponding to the two modulation frequencies, characterizing the letter which is being signalled, transmit currents to the commutator D1, to which they are connected in the same arbitrary order as that adopted at the transmitting station. From the commutator the currents are distributed to a group of relays Y1 - - Y7 and also to contacts grouped on blocks X. The Mock X1 has a contact for each frequency from the second to the eighth, the block X2 for each frequency from the third to the eighth, and so on, all possible pairs of frequencies being thus provided for. If, for example, the first and second resonators T1, T2 are effected, the relays Y1, Y2 act upon hammers Z1. Z2 to press the contact blocks X1, X2 against a rotating drum or like part U. The block X2 is ineffective but the left-hand contact of the block X1 is energized by the resonator T2 and on meeting the corresponding contact V it completes a circuit for operating the type-wh.eel W.
Patent GB-281770-A (GB)
Title: Improvements in electric secondary batteries or accumulators
IPC: H01M10/04
Filed: 1926-09-09
Abstract: 281,770. Joel, H. F. Sept. 9, 1926. Cells; electrodes.-Storage battery cells are provided with short partitions P between the electrodes to prevent short-circuiting by deposit. The electrodes are of the type described in Specifications 230,184 and 251,342 and consist of angular vertical ribs V connected at intervals by members A, H, the members A being flat and the members H recessed from the outer surfaces which are vertical. The electrode may be twisted as shown in Fig. 3, and a number of such electrodes may be connected together to form one large electrode.
Patent GB-260709-A (GB)
Title: Improvements in collapsible tables
Filed: 1925-09-07
Abstract: 260,709. Downing, A. E., and Beesley, T. Sept. 7, 1925. Stays.-A folding table comprises fixed side brackets 1 attached to a vertical surface, a board 3 pivoted on a rod 4 between the brackets, and a stay 8 pivoted on a rod 6 between the side brackets and pressed by a spring 11 against the underside of the table, where it is held in a notched bar 10 thereon. The table is held when vertical by the engagement of a clip 12 on its underside on the rod 6. The top may be angularly adjusted, and the stay 8 may be V-shaped.
Patent GB-407874-A (GB)
Title: Apparatus for the boring of wells or shafts and for like operations
IPC: E21B11/04
Filed: 1933-08-12
Abstract: 407,874. Grab-buckets. SOC. FRANCAISE DE CONSTRUCTION DE BENNES AUTOMATIQUES, 10, Rue de Naucy, Le Havre, Seine, France. Aug. 12, 1933, Nos. 22581 and 22582. Convention dates, Aug. 25, 1932 and Feb. 13, 1933. [Class 78 (iv).] Grab apparatus for digging wells comprises a heavy substantially cylindrical body 1 guiding the apparatus in the bore, digging and grabbing members 20 pivoted at 21 on the bottom of the body 1, and a heavy metallic block 10 sliding in the body for opening and closing the grabbing members. The block 10 and the top of the body 1 may be formed with passages to permit circulation when working under water, or they may provide a closed chamber to exclude grit &c. from the operating gear. The buckets &c. 20 are mounted on a detachable ring 17, and the bucket arms 23 are operated by pin-and-slot connections with a detachable head 24 on the block 10, and the rings 17 and heads 24 are interchangeable with others carrying two, three, or four digging or grabbing tools. The buckets 20 are provided with ribs 22 which extend beyond the pivots 21 and bear against the ring 17 at 19 to take the impact when the open grab is dropped for digging into the ground. The body 1 may be provided with a chamber 4 for lubricant. The body may comprise interchangeable two-part rings 1<a>, Fig. 7, fitting into grooves 41 in the body 1<b> and cap 1. A flange ring 44 may be secured to the ring 1<a> for driving a well tube 42. The grabbing capacity may be increased when digging submerged or soft ground by inserting a distance ring 46 and rod 47, Fig. 11 above the ring 17 and head 24, and the pivots 21 may be off-set so that the bore is wider than the body 1.
Patent GB-1146827-A (GB)
Title: Thermostatic control device for fuel burning apparatus
IPC: H05B1/02
Filed: 1966-05-20
Abstract: 1,146,827. Controlling burners. ROBERT SHAW CONTROLS CO. 20 May, 1966 [7 June, 1965], No. 22625/66. Heading F4T. A control device 11 for a gas-oven includes a disc-valve 16 in the fuel supply conduit 17, an oven thermostat with sensor 44 and capsule 42 operating a valve 21, the thermostat setting being adjusted by means of a knob 36 which is latched in position against the tension of springs until released to be urged by the springs to a lower temperature setting when cooking is complete, the unlatching being performed by a heat motor operated by a manual switch, a timer clock or a meat probe. The heat motor includes a bimetal member 143 carrying a latch member 151 and heated by a heating coil 148 which is energized through the switch or timer clock. A pilot burner 26 disposed in the oven has a continuously burning small standby flame and when additional fuel is supplied via the thermostat control the consequent larger flame is sensed by a bulb 27 to open a safety valve 24 and connect the main burner 12 to the control device 11.
Patent GB-813668-A (GB)
Title: Improvements in or relating to cleaning devices
IPC: A47L13/22
Filed: 1957-07-17
Abstract: 813,668. Sponge mops. BLUM, J. July 17, 1957, No. 22632/57. Class 19. A tubular handle 1 is screwed in a resilient hollow body 8 that is forcibly inserted into a cavity extending inwards from one wall of a cubical sponge 7. Ports in the body 8 allow of cleaning liquid delivered through the handle to within the body to pass to the sponge. The body 8 has indented and chamfered side edges that facilitate insertion into and gripping by the sponge.
Patent GB-341929-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B17/24
Filed: 1929-07-23
Abstract: 341,929. Photographic and kinematographic cameras. SHOOK, H. W., Hong-Kong Bank Chambers, Singapore, Straits Settlements. July 23, 1929, No. 22634. [Classes 97 (i) and 98 (i).] A perforated screen or stencil f bearing an unchangeable identification inscription is fixed in front of the focal plane d of a roll-film camera adjacent to one edge of the film, so that the inscription is impressed on the film when this is exposed. In a kinematograph camera, inscriptions &c. are similarly produced on the margin of the film by mounting in front of the film a metal plate or gate a provided with a central exposure aperture b and marginal perforations c constituting the inscription &c. Specification 4704/90, [Class 97, Philosophical instruments], is referred to.
Patent GB-1187972-A (GB)
Title: Improvements in and relating to the Treating or Refining of Metal.
Inventor: RHYDDERCH MALVERN JOHN
IPC: C21C7/10
Filed: 1966-05-23
Abstract: 1,187,972. Refining metals. BRITISH IRON & STEEL RESEARCH ASSOCIATION. May 22, 1967 [May 23, 1966], No.22790/66. Heading C7D. In a process and apparatus for the treatment of molten carbon-containing metal the latter is fed as a freely falling flow to a reaction vessel wherein the stream is shattered by a flow of oxidizing gas; the metal is collected in the vessel, from which gas is extracted so that air is drawn into burn the carbon monoxide resulting from oxidation of the carbon. By this means it is possible to effect melting of scrap or of pre-reduced pellets, which may be charged to the vessel either before or during treatment of the molten metal. As shown in Fig. 1, metal is discharged from tundish 3 having circular discharge nozzle 4 into reaction vessel 5 having a gas offtake 8 and air inlet 20. The stream of metal is shattered by the action of jets of oxidizing gas from nozzles 15 while fluxes may be discharged from manifold 17 through outlets 19 as a curtain surrounding the stream of metal. In the modification of Fig. 3 (not shown) the metal is fed to the reaction vessel as a stream of rectangular or elliptical cross-section in which the major dimension is several times greater than the minor. The process may be operated as a single stage refining; alternatively the metal may be subjected to a second treatment of the same type or may be subsequently lanced with oxygen in a L. D. converter. In the spray refining process the metal, when collected in the reaction vessel, may be agitated as by rotation of the vessel.
Patent GB-296023-A (GB)
Title: Multi-stage steam power plant
IPC: F01K3/02
Filed: 1928-08-08
Abstract: 296,023. Siemens - Schuchertwerke Akt.-Ges. Aug. 23, 1927, [Convention date]. Heating by indirect contact of steam.-In a steam power plant in. which the exhaust from a primary consumer such as a turbine 2 is used in a steam generator 9 to generate other steam for use in secondary consumers, the secondary steam is fed into accumulators 13, 14. The accumulators supply a turbine 3 which exhausts into a mixing condenser 16. The turbine 2 runs under constant load, and the turbine 3 is regulated to carry the varying load. The Specification as open to inspection under Sect. 91 (3) (a) includes a reference to Specification 295,326. This reference does not appear in the Specification as accepted.
Patent GB-1114717-A (GB)
Title: Television sound broadcasting systems
IPC: H04N7/20
Filed: 1965-05-28
Abstract: 1,114,717. Multiplex radio signalling. TOKYO SHIBAURA ELECTRIC CO. Ltd. 28 May, 1965 [29 May, 1964], No. 22917/65. Heading H4L. In a television studio-transmitter radio link, the audio signals are supplied via a modulator 52, Fig. 2, to frequency-modulate a subcarrier generated at 53, the maximum frequency deviation being arranged to be larger than that of the signal to be transmitted from the broadcasting station 60. The frequencymodulated audio signals are combined at 54 with the video signals and modulate a transmitter 56 co-operating with the station 60. At station 60 the received signals are demodulated at 62 and the video signals are separated at 63 to modulate the video transmitter 64 and then supplied via diplexer 65 to the transmitting aerial. The frequency-modulated sub-carrier is frequency-changed at 66 and then supplied to a frequency-divider 68 which decreases the frequency deviation to the amount normal for television sound broadcasting. After further frequency-changing at 70 and amplification at 71, the resulting signals are supplied to the diplexer 65 for broadcasting. In modifications, frequency-changer 66 or 70 may be dispensed with, or a common local oscillator may be used for both frequency-changers.