baber/WOPTO huggingface dataset:
Patent GB-767160-A (GB)
Title: Flight training apparatus responsive to control stress for simulating aerodynamic loading forces
IPC: G09B9/28
Filed: 1954-10-27
Abstract: 767,160. Flight training apparatus. DEHMEL, R. C. Oct. 27, 1954, No. 31064/54. Class 4. In flight training apparatus means is provided for applying loading to a pilot-operated control member as a function of simulated airspeed whereby the pilot is given a sense of " fuel " when operating the member. A control column 1, pivoted at 2, has an extension 1<SP>1</SP> connected to a cable 40 attached at its ends to springs 41, 42 whereby the column 1 is held in a neutral position. Threaded sleeves 43c, 44c, guided for linear movement are connected to the springs 41, 42 and they are driven from motors 43, 44 through lead screws 43b, 44b. Strain gauges G1 and G2 are attached to the cable 40 on either side of the column 1. A simulated flight computer, energized by a reference voltage Eac, provides a voltage Ev which varies according to the magnitude of the simulated airspeed to energize the primary winding 51 of a transformer 52, the secondary winding having a centre tap to produce oppositely phased voltages fed to the resistances of the strain gauges G 1  and G 2  respectively. The output voltages from the strain gauges each represent a combined function of airspeed and the force applied by the pilot to the column 1 and these voltages are fed by conductors 56, 57 to the input proportioning resistances of a rate of pitch summing amplifier 60 of the computer. A voltage Ev<SP>2</SP> representative of airspeed squared is produced by the computer and fed through conductor 61 to a pair of series resistances 62 and 63 having a common terminal connected by conductor 64 to a motor control system. The ouput of this system is de-phased 90 degrees with respect to reference voltage Eac and energises through conductors 65 and 66 the control windings of the motors 43 and 44 respectively whereby the tension of the springs 41 and 42 is varied in accordance with simulated airspeed to vary the loading on the column 1. The resistance 63 is connected to the adjustable slider 67 of a potentiometer 68 that is energized by an " answer " voltage ŒE oppositely phased with respect to computer voltage Ev<SP>2</SP>. Slider 67 is mechanically positioned as indicated at 69 by operation of motor 44 so that when the oppositely phased voltages are balanced the voltage on conductor 64 is zero and predominance of either voltage determines the phase of the motor control voltage. A further embodiment is described in which the strain gauges are mounted on a portion of the control column of reduced cross section to produce signals controlling a torque loading motor mechanically connected to the control column. A simulated trim control mechanism is incorporated. U.S.A. Specification 2,366,603 is referred to.
Patent GB-1185095-A (GB)
Title: Limited Energy Speech Transmission and Recieving System
IPC: G10L25/00
Filed: 1967-07-05
Abstract: 1,185,095. Radio signalling; secret transmission. GENERAL ELECTRIC CO. 5 July, 1967 [6 July, 1966], No. 31070/67. Headings H4L and H4R. In a system for transmitting speech, the audio-frequency signals are converted into a substantially rectangular waveform, the periodicity of which is determined by the zero crossing positions of the audio-frequency oscillations and a radio-frequency carrier is modulated with the waveform. The receiver employs a zero crossing detector whereby intelligible speech signals may be reproduced although the amplitude component is missing. Means are also described whereby the amplitude component is transmitted in addition to the zero crossing pulses. Transmitter, Fig. 3.-The speech signal at 26 is limited, clipped and squared at 27, 28, 29, Fig. 5 and supplied to a zero crossing detector 31, e.g. a differentiating circuit. The resulting zero crossing pulses are supplied to a repetition rate limiter 32 which integrates together pulses which are too closely spaced to be distinguished in the output signal. The output of repetition rate limiter 32 is supplied via a pulse shaper 33, producing pulses of fixed amplitude and duration to modulate a R.F. carrier at 21 and the resulting signal is transmitted. Receiver, Fig. 4.-The output of a conventional receiver 54, 55, 56, consisting of zero crossing pulses is supplied via a squaring circuit 57 to a bi-stable 58 which converts the pulses to a square wave shape signal of constant amplitude but varying periodicity, this signal being supplied via an audio amplifier 59 to a loudspeaker 60. A sinusoidal waveshaping circuit 84 may be included. Modifications.-The transmitter, Fig. 11 (not shown) also includes an audio envelope detector whose output is combined with that of the zero crossing detector so that the zero crossing pulses are amplitude modulated. At the receiver, Fig. 12 (not shown) a speech signal without the amplitude component is recovered as before and this signal is combined in a modulator with the demodulated audio envelope signal. In a further arrangement, Fig. 15 (not shown) the lower speech frequencies are transmitted by conventional modulating means and a separate transmitter, and the higher speech frequencies are transmitted by the use of zero crossing pulses. In a modification of this system, Fig. 16 (not shown) the separate transmitter is dispensed with and the low frequency signals width-modulate the zero crossing pulses. An arrangement is described for transmitting two channels in time division multiplex, Figs. 7, 8 (not shown).
Patent GB-870426-A (GB)
Title: A motor for a coal-winning machine
IPC: H02K5/04
Filed: 1959-09-11
Abstract: 870,426. Casings for electric motors. SIEMENS-SCHUCKERTWERKE A.G. Sept. 11, 1959 [Sept. 13, 1958], No. 31089/59. Class 35. A motor for driving a coal-winning machine is mounted with its axis perpendicular to the flow of coal in a cylindrical sealed casing 1 mounted in an outer casing 7 having parallel top and bottom 8, 9 and sloping ends 10, 11 and 12, 13. The outer casing houses the control switch 14 and cable lead-in 25. The motor is cooled by air drawn through a grill 5 by a fan (not shown) on the motor shaft, this air being blown through cooling fins 6 projecting from the inner casing.
Patent GB-894619-A (GB)
Title: Stabilized liquid preparations comprising tetracycline antibiotics
IPC: A61K31/65
Filed: 1960-09-09
Abstract: Stabilized pharmaceutical and veterinary compositions for oral, parenteral and topical administration comprise a tetracycline antibiotic, a pharmaceutically acceptable liquid vehicle, thioglycerol and a pharmaceutically-acceptable formaldehyde sulphoxylate salt.  Particularly suitable tetracycline antibiotics are the co-ordination complexes formed with metal salts, e.g. those of magnesium, calcium, zinc and aluminium.  Suitable vehicles include water-miscible polyhydric aliphatic alcohols, e.g. propylene and ethylene glycols, polyethylene glycol and glycerine which may contain up to 30% by volume of water.  A preferred method for preparing solutions according to the invention is to dissolve the antibiotic free base or an acid salt thereof in the selected vehicle and to add thereto a solution of the metal salt, the stabilizing ingredients being added subsequently.  Suitable formaldehyde sulphoxylate salts are those of the alkali metals and alkaline earth metals (except barium). Local anaesthetics, e.g. lidocaine, may be included in parenteral compositions.
Patent GB-428221-A (GB)
Title: Improvements in or relating to impact pulverizers
IPC: B02C13/00
Filed: 1933-11-09
Abstract: 428,221. Impact pulverizers. DREW, W., and EDGE, M. T., Albion Iron Works, Leigh, Lancashire. Nov. 9, 1933, No. 31178. [Class 59] In a pulverizer for grain, biscuits, cloves, &c., of the kind having beaters pivotally supported eccentrically of the driving shaft and rotatable in a grinding chamber provided with a perforated base or screen, the beaters increase in length from both ends of the grinding chamber towards the middle and the perforated base or screen is correspondingly shaped. As shown, four rods 15 are mounted in four discs 10 secured to the driving shaft 3 and carry beaters 14 spaced apart by sleeves 15 on the rods. The length of the beaters increase from each end toward the centre and the sieve 16 is shaped in accordance with the beaters. The end beaters have outturned ends 14<a> and a cover 6<a> in the end wall is removable for changing the screen, &c. The feed hopper 22 has an inverted V-shaped bottom 23 and two feed outlets 24, 25 provided with adjustable pivoted valves 26, 27 through which the material is supplied to each end of the rotor. The crushed material passes through the sieve to an outlet 21.
Patent GB-1505990-A (GB)
Title: Terminal end connector for wire ropes and the like
IPC: F16G11/04
Filed: 1975-07-14
Abstract: 1505990 End fitting for ropes CCL SYSTEMS Ltd 14 July 1975 [15 July 1974] 31236/74 Heading D1T An end fitting for a rope and of the kind comprising a single - piece body 1 having an axial bore 4 at one end to receive a rope and clevis arms 11 at the other end to receive a pivot pin via apertures 12 is characterised in that the bore 4 has an axial portion and a tapered portion, the tapered portion containing a cone element 5 through which the rope can pass along a bore 7 in the cone element, and the axial part being screw-threaded to receive a threaded plug 6 which, in use, co-acts with the cone element 5 to urge it into tight engagement with the rope end. The outer strands of the rope are splayed back over the cone so as to be sandwiched between the cone 5 and the tapered bore. The plug 6 has a blind bore 10 to receive an Allen key or the like. The cone element 5 may have an axial slot or it may be in the form of a multipart wedge device.
Patent GB-306200-A (GB)
Title: Improvements in or relating to drying apparatus
IPC: F26B17/10
Filed: 1927-11-21
Abstract: 306,200. Testrup, N., Gram, T., S÷derlund, O., and Techno-Chemical Laboratories, Ltd. Nov. 21, 1927. Gaseous currents, materials carried by.- Material is dried by carrying it in an externally heated gas' current, and a temperature equal to or greater than that of the. interior is maintained on the exterior at all points which the material and gas pass to prevent condensation and blocking. The exterior temperature is kept above the dew point of the gas. Material is fed at d into a pipe c and is carried by air driven through a fan f through a tube e and heating conduits a to a cyclone separator h and is removed by a conveyer q, the apparatus being wholly enclosed in a casing b heated by a steam or other pipe j. Separate containers forming double walls or jackets for parts of the apparatus may be provided, and where regions of higher temperature are to be used, separate jackets and heat supply may be provided, the connecting pipes being also heated. Specification 286,743 is referred to.
Patent GB-946739-A (GB)
Title: Jet propulsion engine for water craft
Inventor: KEMENCZKY MIKLOS
IPC: B63H11/00
Filed: 1960-09-12
Abstract: 946,739. Hydraulic jet propulsion apparatus. KEMENCZKY ESTABLISHMENT. Sept. 12, 1960, No. 31289/60. Heading B7V. [Also in Division F1] Gases from the combustion chamber 1 enter the thrust tube 3 and force water, which has entered through the inlet 17, out through the discharge 29 to propel a boat. The combustion chamber is divided into primary and secondary chambers 7 and 8 by a check valve 9 and is connected with the thrust tube 3 through a flap valve 6. Water is admitted through the inlet opening 17 and passes through a rotary check valve 19, which is described and claimed in Specification 946,740. Air is admitted through the starting pump 30 to the carburetter 11 and the mixture passes through the chamber 7 via a valve 10. A spark-plug 14, which is controlled by an ignition apparatus (see Division F1), ignites the mixture and the gases thereby formed force the water in the tube 3 in the direction of the arrow 15 up to the line 50, whereupon they contract and this feature, together with the inertia of the ejected water, causes a vacuum to be produced in the chambers 7 and 8 so that a fresh supply of fuel mixture is sucked through the valve 10. At the same time water is sucked in through the check valve 19 to fill the tube 3 and the cycle is repeated as the next ignition occurs in the combustion chamber. The portion 27 of the tube 3 is made of an elastic material so that water entering the tube after the check-valve 19 has closed, due to the pressure of the combustion gases, will cause the portion 27 to bellow outwardly to store energy which is used to give the water an additional acceleration into the adjacent part of the tube 3 when the valve 19 is opened. The chamber 1 may be located within the thrust tube 3.
Patent GB-249919-A (GB)
Title: Improvements in apparatus for effecting the transfer of heat between gases
IPC: F28F21/04
Filed: 1924-12-31
Abstract: 249,919. Teisen, T. Dec. 31, 1924. Regenerators.-A tubular brick t of substantially uniform wall thickness for heat transfer purposes is provided at each end with coaxial hexagonal flanges of unequal lengths, one flange b having a spigot and the other a a corresponding socket, such bricks together with end tubes and spacing pieces d being built up to form recuperators in which one gas passes through the tubes and the other around them, or regenerators in which the gases pass only around the tubes. The intermediate part between the flanges may also be of hexagonal shape and may be provided on two opposite pairs of side walls with external teeth c to break up the fluid stream. For each horizontal layer the direction of the bricks t is reversed so that they are bonded due to the unequal lengths of the flanges. The distance-pieces d each have the shape of a quadrant of the hexagonal flange, and are provided with grooves filled with cement to prevent leakage. End tubes of two different lengths are provided so that the end walls come flush. In Fig. 10, i, j are the inlet and outlet passages for air passing upwardly in a zig-zag path around the bricks, which are set so that for every vertical channel there are two inclined channels causing a further mixing action. Waste gases pass through the tubes, being baffled by division slabs o, and teeth similar to the teeth c may also be provided within the tubes. The area of passage for the air may be increased as the air expands by making the recuperator broader at the upper part.
Patent GB-720466-A (GB)
Title: Improvements in or relating to wind tunnels
Inventor: GREATREX FERDINAND BASIL
IPC: G01M9/04
Filed: 1950-12-22
Abstract: 720,466. Wind tunnels. ROLLS-ROYCE, Ltd. March 21, 1952, [Dec. 22, 1950], No. 31307/50. Class 4. The flow of working fluid through a wind tunnel is caused by the exhaust of one or more gas turbines 10 set upstream of the working section 23 of the tunnel, and consists wholly or substantially wholly of the exhaust flow from said turbines. The exhaust duct of the engine is jointed at 14 to a divergent section 15, itself jointed at 19 to section 20 having a throat 21 and leading to a working section 23 of constant or slightly divergent exhaust section 24, or, for supersonic work, a second throat. Joint 14 is shown in section in Fig. 3; glands 13a on section 13 bolted to the engine exhaust duct sliding to allow longitudinal expansion, and member 16 sliding inside members 18 and 17, the latter being secured to section 15, allowing for misalignment of the engine. Joint 19 is similar, but without provision for expansion. The throat and working sections 21 and 23 are surrounded by heat retaining panels 32 of asbestos sandwiched between aluminium plates, the inner facing plate being polished. Heaters, preferably electric, are situated between these panels and the wind tunnel itself, and are employed to raise gradually the temperature of the enclosed sections prior to starting the turbine, thus eliminating thermal distortion due to the hot exhaust. A portion of the working section and the exhaust section may be slidable on wheels, to allow easy access to the test model.
Patent GB-1256350-A (GB)
Title: Television using colours produced by light ray scan of prismatic surfaces on screens of glass or other suitable materials
Inventor: PEDRICK ARTHUR PAUL
IPC: H04N11/00
Filed: 1970-06-29
Abstract: 1,256,350. Optical filters. A .P . PEDRICK. June 29, 1970, No.31312/70. Heading G2J. A screeen for providing coloured images of scenes televised under the NTSC-Pal system, the screen having a number of parallel angled or prismatic surfaces on its inside face upon which the light beam from the television is scanned such that it causes the light beam to split into its spectrum of colours. The screen is followed by a light filter which allows only certain of the colours to pass through.
Patent GB-302790-A (GB)
Title: A new or improved lifting appliance for motor cars and like vehicles
IPC: F02M23/00
Filed: 1927-11-23
Abstract: 302,790. Eagles, J. Nov. 23, 1927. Stands or supports. - A cross-member or bracket 3 mounted on any suitable jacking means at 2 carries horizontal girders 5, which, as shown, may be tiltable on trunnions 14, 15. The jacking means is mounted below the floor and the vehicle placed above the device so that when it is raised the girders 5 engage some part of the chassis, or brackets such as a raise the wheels. The width between the girders may be adjusted by right and left handed screw mechanism 20, 22, 23. Stops 17 limit the tilting movement.
Patent GB-620577-A (GB)
Title: An immersible repeater for submarine telephone circuits operated by carrier currents
IPC: H04B17/40
Filed: 1945-11-23
Abstract: 620,577. Thermionic valve supply circuits. COMPAGNIE GENERALE D'ELECTRICITE. Nov. 23, 1945, No. 31640. Convention date, April 13, 1943. [Classes 40 (vi)] [Also in Groups XXXIX and XL (b)] A submarine carrier repeater is provided with a feed-back path to cause it to oscillate at a frequency outside the signalling band, said oscillations being used to indicate the condition of the repeater to the shore station.. Thus, in a repeater having automatic valve replacement, the amplitude of the oscillations may be varied to indicate the number of serviceable spare valves. The feed-back path, Fig. 6, comprises a filter F1 passing the desired oscillation frequency and a bridge network 2 having as frequency determining arms series resistance and capacity R1, C1 and parallel resistance and capacity R2, C2. The oscillation amplitude is stabilized by the non-linear resistance RT and determined by the resistance P. The valvechanging arrangement, Fig. 3, includes several valves having their anode-cathode paths in parallel, power being supplied by switch C to the filament of the particular' valve in use. When the anode current fails, Rp releases to operate relays Re and Rs and cause the mechanical spring motor S to rotate the switch C to switch in the next filament. Contacts of Ts change the amplitude of the oscillation either temporarily or permanently by altering the value of P in the feed-back circuit, a continuous record of the amplitude being kept at the shore station. Specification 614,426, [Group XXXVI], is referred to.
Patent GB-264004-A (GB)
Title: Improvements in heating installations for buildings
IPC: F24D3/14
Filed: 1925-12-15
Abstract: 264,004. Benham & Sons, Ltd., and- Allensby, C. R. Dec. 15, 1925. Addition to 243,630. Radiators.-In apparatus for heating buildings, of the kind described in the parent Specification, in which heating pipes are embedded in; the floor or ceiling, means are provided for fixing the pipes to the shuttering or framework before the concrete is applied. The pipes a are placed in, position on the shuttering (not shown), or are temporarily fixed to the steelwork c. The pipes are suspended by larger hoops d, and the U-shaped covers e then placed in position. These may be closed by flat or curved pieces f secured to the hoops d. The concrete b is then applied, and finally a layer of plaster g. Alternatively, the hoops d may be replaced by U-shaped suspension devices, and in another alternative, the covers e, f may both be semicylindrical. In an alternative method, the covers e may first, be placed in position before the pipes are supported on the shuttering or fixed to the framework.
Patent GB-979147-A (GB)
Title: Improvements in and relating to the melting of glass
IPC: H05B3/03
Filed: 1963-08-12
Abstract: 979,147. Electric glass furnace electrodes. OWENS-ILLINOIS GLASS CO. Aug. 12, 1963 [Aug. 10, 1962], No. 31724/63. Heading H5H. An electrode assembly for a glass-meiti a furnace wherein the assembly is housed in cavity 12 in the furnace wall 13 has the electrode 44, of molybdenum, carried in a steel holder 37 set in a cavity 35 formed by members 27, 30, 32a-32d of refractory material which are themselves housed in the cavity 12 in the furnace wall, the cavity 12 being provided with a conduit 23 and the cavity 35 with a conduit 49 both of which extend outwardly through the furnace wall 13 so as to define a passageway 50 the end of which is sealed with a semiplastic material 66, the passage-way 50 being supplied with helium at a predetermined rate by a pipe 72 from a chamber 76 and exhausted therefrom by a second pipe 74 and a container 79. The steel electrode holder 37 is provided with an axial bore 41 having a perforated pipe 52 therein and which is connected to a pipe 54 extending through the furnace wall 13 concentrically with the conduit 49, thereby forming passage-ways through which water may flow to cool the electrode 44, the flow being indicated by arrows from an inlet pipe 57 to an outlet 58. Electrical connection to the electrode assembly is made by a silver band 61 secured to the conduit 49.
Patent GB-440843-A (GB)
Title: An improved holder or fastener for sliding windows and the like
IPC: E05F11/00
Filed: 1934-11-05
Abstract: 440,843. Window fastenings. GIBSON, E. L., 126, Lathom Road, and JONES, E. H., 10, Bendish Road, both in East Ham, London. Nov. 5, 1934, No. 31762. [Class 44] The sashes of a sliding window are secured in closed or partly open position by a strip or bar of metal having an end A inserted in a selected hole H in the upper sash J, a horizontal limb C extending over the upper edge of the lower sash K, with an offset part B engaging between the sashes, a depending vertical limb D, and a pin F inserted through an aperture in the flattened end of limb D into a hole in the lower sash. The part B is provided, in a modification, by bending upon itself a portion of limb C. In applying the device the end A is inserted with the part B disposed sideways, and is then rotated to enter the part B between the sashes.
Patent GB-153605-A (GB)
Title: Process for the preparation of terpineol
IPC: C07C35/12
Filed: 1920-11-10
Abstract: Terpineol is prepared by heating terpin hydrate with an organic sulphonic acid, preferably quinolinesulphonic acid.  The process may be rendered continuous.