baber/WOPTO huggingface dataset:
Patent GB-900978-A (GB)
Title: Improvements in or relating to musical instruments including systems for generating mechanical and/or electrical oscillations or vibrations
IPC: G10H1/043
Filed: 1958-07-25
Abstract: 900,978. Electrophonic musical instruments. MICHEL, A. July 25, 1958 [July 27, 1957], No. 24035/58. Class 88 (2). [Also in Groups XXXV and XL (c)] A carrier or pulse train is applied to a resonant circuit 34, 31 with magnetic core and off-tuned from the carrier or pulse frequency F N  by a lowfrequency F 2  which is self-generated by the core so that across an output impedance 36 an amplitude-modulated carrier of sideband frequencies (F N ŒKF 2 ) is produced (K an integer), and if subsequently demodulated producing a tone frequency. The core may be a yoke with resonant vibrating reed 40 of natural frequency F 2 . Alternatively the core may be a ferrite magnetostrictive rod magnetically biased by an adjacent permanent magnet, the modulating frequency then being the low-difference frequency between the carrier and natural frequency of the rod. The reed air gap may form a variable capacity in series with the off-tuned resonant circuit, and in parallel with the variable inductance, to increase the harmonic content of the generated modulation fundamental frequency. The output may be keyed on and off by a magnetic shunt movable to the yoke, or by capacitive plates shunting the resistor 36. In an electric organ, Fig. 19, register switches 246, 248 apply carrier (30 kc/s.) from a source 220 to a parallel series of tone modulators 226, 230 and adjacent tone modulators 228, 232 an octave higher in frequency, the outputs across resistors 238 being inductively coupled through playing keys 253, 266 with a common output line connected to a carrier demodulator 250 feeding through a swell control 280 and output amplifier 278 a speaker 282. The playing keys operate movable magnetic rods 260 which operate switches 252 and then first couple the output coils 256 shunting the resistors 238 with the take-off coils 258, and then with reversely wound coils 254 in series with the output coils 256 to eliminate transients due to operating the keys. The mechanical oscillator may be a solenoid core connected to a weighted pendulum determining its natural period and adjustable by varying the position of the pendulum weight. Alternatively, the vibrating core may be spring- controlled and pass through two solenoids, so that oscillations in anti-phase may be taken from the solenoids.
Patent GB-690606-A (GB)
Title: Cutting device for continuously advancing articles such as tubes
IPC: B23D25/04
Filed: 1951-10-16
Abstract: 690,606. Shearing. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Oct. 16, 1951 [Oct. 20, 1950], No. 24063/51. Class 83 (iv). A flying shear carriage carries a measuring disc and cam which operate contacts energizing circuits for starting the carriage and locking the tube to the carriage. A tube 1 fed by rolls rotates a roller 9 which drives through a clutch 8 a measuring disc 5 carrying a stop 10 and a double cam 12. When the clutch 8 is engaged the disc 5 is rotated to bring the stop 10 to the position shown from contact with an adjustable zero stop 11 and the cam 12 actuates a switch 13 to operate the flying shear carriage motor which increases speed and results in a slower rotation of the disc 5. When the speed of the carriage exceeds that of the tube 1 the disc 5 reverses and the cam 12 actuates a switch 15 controlling the tube clamp. When the tube is clamped the cutter is actuated and the clutch 8 opened to zeroize the disc 5 and the carriage is returned.
Patent GB-746153-A (GB)
Title: Railway fluid-pressure brake distributor valve
IPC: B60T15/30
Filed: 1954-08-18
Abstract: 746,153. Fluid pressure railway brakes. WESTINGHOUSE AIR BRAKE CO. Aug. 18, 1954 [Nov. 5,1953], No. 24067/54. Class 103 (1). In a triple valve for fluid pressure railway brake equipment connected with a brake pipe 2, an auxiliary reservoir 3, brake cylinder 4, and control reservoir 16, and comprising a main service valve unit 6, a quick inshot valve 7, an accelerator unit 8 and reservoir charging unit 9, initial charging of the control reservoir upon supply of fluid pressure to brake pipe 2 takes place at a fairly rapid rate by way of passage 62, space 139 below the control reservoir charging check valve 11, choke 140, passage 134, space 133 in the charging cut-off valve device 10, passage 122, a groove in the slider valve 117 of valve unit 9 and passage 67. When the control reservoir pressure reaches a value of about sixty-five pounds, such pressure acting in chamber 126 above diaphragm member 128 in the valve unit 10 moves down the valve slide 129 to cut off passage 134. A slower charge now takes place by way of passage 62, a groove 61 in the main service valve 6, passage 60, choke 145, space 143 below check valve 142 and passage 135 to the groove in slide valve 117. During this period the effect of the brake pipe pressure acting in chamber 52 in opposition to control reservoir pressure in chamber 53 on the opposite side of diaphragm member 48 of the valve unit 6 will throttle the end of passage 62 and will prevent the differential across choke 145 from exceeding seven tenths of a pound pressure so that the control pressure will be raised slowly from sixtyfive pounds to the normal full value of seventyone pounds and the period before any overcharging can take place will be prolonged. So that any overcharge of the control reservoir 16 may be dissipated more rapidly than it has been built up, a choke passage 144 in parallel with passage 145 becomes operative when fluid is flowing back into the brake pipe. Specification 702,100 is referred to.
Patent GB-259231-A (GB)
Title: Electric insulator with internal current transformer
IPC: H01F38/30
Filed: 1926-09-30
Abstract: 259,231. Maschinenfabrik Oerlikon. Oct. 2, 1925, [Convention date]. Transformers. - In a hollow lead-in insulator provided interiorly with a protective transformer, the core 6 for the secondary winding 7 is disposed about the conductors, and extends axially on both sides beyond the external earthed mount 5 with which it is connected. In the construction shown, the insulator consists of two tubular members 1, 2 clamped together by rings 3 and packing rings 4. The mount 5 which carries the transformer core 6 forms, in conjunction with the rings 3 the support for the insulator. The ends 7' of the secondary winding 7 are passed through one packing ring. A metal cylinder 8 screens the secondary winding electrically from the lead-in conductor 9. The cavity in the insulator may be filled with a. fluid insulating material 10, such as oil, and an insulating tube 11 surrounding the conductor 9 may be used.
Patent GB-1037973-A (GB)
Title: Improvements in or relating to the coupling of two transistors or groups of transistors
Inventor: THOMPSON PHILIP MARTIN
IPC: H03K19/018
Filed: 1961-07-05
Abstract: 1,037,973. Transistor logic circuits. PLESSEY CO. Ltd. Sept. 21, 1962 [July 5, 1961], No. 24222/61. Heading H3T. A coupling circuit between two transistors in a computer logic circuit comprises a semiconductor device, the voltage drop across which, when conducting, is less than the difference between the collector potential of the first stage when conducting, and the base voltage necessary to cause the second to conduct. In Fig. 2, a semi-conductor diode I 1 <SP>11</SP> is used to couple together two transistors J 1 , J 2  which form part of a logic circuit. Other circuits may also be coupled in a fan-in or fan-out arrangement by further diodes I 1 , I 1 <SP>1</SP>, I 2 , I 3 . In order to produce a small enough voltage drop across the diode, a germanium diode may be used with silicon transistors, or a backward diode with germanium transistors. In Fig. 4 (not shown) a number of further transistors have the collectoremitter paths connected across that of J 2  to form an AND or OR circuit. In a second embodiment, Fig. 5 (not shown), the coupling diode is replaced by the collector-emitter path of a transistor K 1 . Where a number of similar circuits are connected to J 2  in a fan-in arrangement a number of coupling transistors K 1 , K 2  &c. may be replaced by a single multi-emitter transistor, Fig. 6 (not shown). The diodes I 1 , I 2 , I 3  of Fig. 2 may similarly be formed as a single device with a number of spaced cathodes. The parallel connected transistors of Fig. 4 (not shown) may also be formed from a single block of semi-conductor material.
Patent GB-1467835-A (GB)
Title: Process for producing hot-rolled high-s'trength low-alloy steel
IPC: C22C38/12
Filed: 1974-05-31
Abstract: 1467835 Processing low-alloy steel USS ENGS & CONSULTANTS Inc 31 May 1974 [31 May 1973] 24234/74 Heading C7A Steel containing in percentage by weight: together with optionally small amounts of Cu, Cr, or Ni is austenitized to dissolve all carbides and nitrides, followed by hot working above Ar3 to effect not more than 90% of the total working required. It is then cooled into the Ar 3 -Ar 1  range, and subjected to a further 10-40% reduction, thus being carried out preferably at not less than 25‹F below Ar 3 . The steel may finally be tempered at 1100-1250‹F for 1 to 120 minutes. After cooling to ambient temperature the steel may be formed into welded pipe by conventional processes.
Patent GB-226623-A (GB)
Title: Improvements in or relating to film-exposing, developing and finishing apparatus of photographic typographical composing machines
IPC: B41B15/32
Filed: 1923-09-29
Abstract: 226,623. Linotype & Machinery, Ltd., and Banks, J. N. Sept. 29, 1923. Continuous apparatus for developing and like treatment. - Apparatus for use with a typographical composing machine, comprising a camera, developing, fixing, and washing chambers, mechanism for intermittently advancing a film through the camera and continuously operable mechanism for conveying the film through the chambers, has an actuating device for the intermittently operated mechanism operated by a member of the composing machine which is automatically actuated after exposure of a line of characters. In the construction described, the film 3, Figs. 1 and passes from a spool 11 in a removable film-box 2, past an exposure aperture 9 formed by adjustable shutters 10 in the camera 1. The film then passes through a box 4 containing intermediate conveying bands 38, 39, to developing, fixing, washing and drying apparatus 5, 6, 7, 8, having conveying bands 55, 56 driven continuously, for example by a motor, through gears on guiderollers 59, 60. The film is driven through the camera 1 by means of a pivoted lever 29 actuated intermittently by a member of the composing machine and having a pawl 28 engaging a ratchet 27 on a shaft 25, Fig. 3, driving a shaft 15, carrysprocket-rollers 12, Fig. 4, engaging the film,. through gear-wheels 25, 24, 21. The stroke of the lever 29 can be varied to vary the extent of advancement of the film by means of an adjustable eccentric 31 against which is is drawn by spring 30. The sprocket-rollers 12 and the rollers 13 and the other guide rollers may be adjustable on their shafts to take films of different widths. The film then passes between cutting blades 35, 36 to conveyer bands 38, 39 which may be intermittently or continuously driven from a guide roller 42 by means of a double-faced clutch 54, Fig. 3, splined on the shaft 50 of the roller 42, which can be engaged, by means of lever 66, either with a sprocket-wheel 49 loose on shaft 50 and connected by chain 51 with sprooket-wheel 48, secured on shaft 26, for intermittent drive, or with a sprocket-wheel 52 also loose on the shaft 50 and connected by a chain 53 to a sprocketwheel 65, secured to a roller 59, for continuous drive. A handle 75 is also provided for driving the shaft 50. The conveyer bands have raised edge portions 57, Fig. 6, between which the film may be gripped, and perforations 58. Only one band of the pair may have raised edges, or the upper band may be replaced by two marginal bands. A liquid-spraying arrangement may be provided in any or all of chambers 5, 6, 7 and consists of a tank 67, sprayers 69 for distributing treating-liquid on the film 3, and a rotary pump 70 geared to the driving mechanism of the bands 55, 56 for returning the liquid to the tank 67. The drying apparatus 8 consists of perforated drums covered with absorbent material and internally heated, for example, by gas-jets 72.
Patent GB-903460-A (GB)
Title: Method of forming a container of a thermoplastic material
IPC: B29C49/04
Filed: 1959-07-15
Abstract: 903,460. Blow-moulding. KARL MAGERLE. July 15, 1959 [July 16, 1958], No. 24296/59. Class 87(2). [Also in Group XVII] A container is blow-moulded with an integral connecting piece and stopper by extruding a tube 6 through a nozzle 4, closing the bottom end of the tube by members 12, closing the mould halves 1, 2, and blowing the tube against the mould by supplying air through a pipe 5. When the mould halves are closed excess material is forced into cavities to form the connecting piece 18 and stopper 19. Knives 28 separate the container from the tube. In a modification, Fig. 4 (not shown) the stopper is made separately and inserted in a bore in the connecting piece.
Patent GB-533964-A (GB)
Title: Improvements in or relating to portable abrading machines
IPC: E04F21/16
Filed: 1939-08-23
Abstract: 533,964. Abrading machines. TYCE, G. C., MURRAY, .T. J. L., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Aug. 23, 1939, No. 24308. [Class 60] [Also in Group XXVIII] A portable abrading machine of the rotating disc type for abrading walls and other surfaces of stone, plaster or wood, has a hood extending over the disc so mounted that when its periphery is pressed flat against the surface a segment of the disc is bent through an angle of 5 degrees-20 degrees, preferably 8 degrees-15 degrees, the segment preferably corresponding to an arc of about 140 degrees. The abrading disc 9c backed by a circular felt 9b and spring plate 9a is secured to a boss 8 on the spindle 7 projecting from the gear casing 2 extending from the motor casing 1. Secured to the rim of the casing 2 is a hood, preferably made of aluminium, aluminium alloy or synthetic resin, which has a conical part 5 and an oblique cylindrical part 6 set with its rim 19 at an angle of 5 degrees-20 degrees to the plane of the disc. Projecting from the rim and secured thereto by a split ring and screws is a ring 14 of rubber, felt, compacted hair bristles, velvet &c. A duct 10 for dust extends for a quadrant of the hood and is provided at its tubular end with a cotton duck or like collecting bag. Holes in hood provide air inlets and one or more vanes 17 may be mounted in the boss to increase the blowing action produced by the rotation of the disc in the closed hood. Alternatively, the dust may be removed by a separately driven exhauster. The machine is held by handles and the ring 14 pressed against the surface with the duct 10 and bag vertical.
Patent GB-743039-A (GB)
Title: Improvements in or relating to method and apparatus for absorbing naphthalene or other substance present in a liquid by contacting the liquid with another immiscible liquid of different density
IPC: B01D11/04
Filed: 1953-09-03
Abstract: 743,039. Water &c., purifying etc.; separating mixtures of liquids by gravity only. KOPPERS CO., Inc. Sept. 3, 1953 [Nov. 18, 1952], No.24401/53. Class 46. A substance present in a liquid is removed by contacting the liquid with an immiscible absorptive liquid of different density by discharging the first liquid into the upper portion of an introduction chamber, discharging the second liquid through a separate inlet thereinto, passing both liquids therefrom into a second chamber where the liquid of lesser density flows through the other liquid permitting the substance in the one liquid to be absorbed by the other liquid whereafter the lighter liquid passes away through an upper outlet while the heavier one flows to a settling chamber for final removal. Naphthalene laden gas enters a tower 1 at 2 and rises past baffles 3 to an outlet 5, encountering on its way water sprayed downwards from nozzles 4. The water extracts the naphthalene from the gas and the charged water descends on to a vented cone 9 closing the top of a cylindrical wall 8. On the cone it mixes with tar from an inlet 6, the tar filling and overflowing a weir 13 formed with a serrated upper edge 14. The associated liquids flow down an annular chamber 10 between the wall 8 and the tower 1 and the chamber introduces them, through openings 16, into the bottom of an inner or second chamber 12. Here they rise in an annular space 12<SP>1</SP> between the wall 8 and a cylindrical wall 17 and are brought into intimate contact by baffles 21, the tar removing the naphthalene from the water and sinking to the bottom of the space where it builds up until it overflows an adjustable weir 23 into a heated settling chamber 20 formed by the cylindrical wall 17. The water, free -from naphthalene, rises in the chamber 12 to an outlet 22 while the tar escapes through an outlet 19 in the conical bottom 18 of the chamber 20 at a rate determined by a valve 29 actuated by an automatic control 30 dependent upon the difference of pressure between two points 31, 32 in the chamber 12 and the settling chamber 20 respectively.
Patent GB-226881-A (GB)
Title: Improvements in smoke producers particularly for use on aircraft
IPC: G09F21/16
Filed: 1923-10-01
Abstract: 226,881. Smith, A. R. Oct. 1, 1923. Smoke-producing.-Relates to apparatus for signalling by smoke trails from aircraft and applicable also for screening and other purposes. According to the invention, the smoke producing material is melted by the heat of the engine exhaust and conveyed under air pressure to a discharge point at a sufficient distance from the aircraft to avoid perturbation of the trail. The exhaust E, in the form shown, is connected by a pipe 9 with a jacket 4 having a vertically movable cover 5, communicating with a long tubular jacket 7 extending above the machine. A pivoted elbow 10 can be turned by means of a lever 13 so as to regulate the supply of hot gases entering the pipe 9, the remainder of the gases escaping from the exhaust E into the air at the side of the aircraft. The smoke producing material is placed in a container 19 inside the jacket 4 under pressure from a pump 14 or an air reservoir, and is forced up a tube 23 running from the bottom of the container 19 through the container and through the jacket 7, and terminating in a valve 24 controlled by a lever 27. In a modification, water from the cooling system of the engine circulates in the jackets 4 and 7. The smoke producing material in the container 19 is such as to produce smoke when heat or air or both are applied thereto, or when discharged into the atmosphere. Thus white phosphorus under water may be melted by the heat and forced by the air pressure up the tube 23, from which it issues under control of the valve 24, igniting and producing smoke on contact with the air. Red phosphorus powder may be similarly employed; or combustion may take place in the chamber 19, the temperature of combusion being controlled by means either of the exhaust gases or of the engine cooling system. Specification 143,380, [Class 118 (ii), Signals], is referred to.
Patent GB-1210184-A (GB)
Title: Gas-cooled nuclear reactors
IPC: G21C9/016
Filed: 1969-05-13
Abstract: 1,210,184. Reactors. SIEMENS A.G. 13 May, 1969 [14 May, 1968], No. 24441/69. Heading G6C. A gas-cooled reactor has, beneath the core, means for distributing to separate receiving locations material that falls from the core when the reactor is in operation, the cooling arrangements being such that the flow of coolant gas used to extract heat from the core when the reactor is in operation passes adjacent to the receiving locations so as to cool such material collected there. As shown, the core 3 of a gas-cooled fast breeder reactor is suspended within a concrete pressure vessel 1 from a support grid 4, which grid is supported by a support wall 5 extending down to the bottom of the pressure vessel. Situated below the core 3 is a distributing cone 6 for fragments that fall out of the core 3. The base of this cone lies on a ring-shaped screening shield 7 formed with radially extending slit-like cooling traps 8. Radial channels 9 for the reactor coolant are provided between each two of the cooling traps 8. Located in each of the channels 9 is a cooling pipe 10 for an auxiliary coolant. The auxiliary coolant may be liquid metal, vapour or water. The cooling traps 8 are of large surface area and are narrow in order to ensure good cooling of material collected therein. The cone 6 and shield 7 are held by a support plate 13 which is secured to the support wall 5. The main reactor coolant (CO 2 ) flows upwards through the space between the support wall 5 and insulation 2 of the pressure vessel 1. A gaspermeable screen 15 is provided between the wall 5 and the insulation 2 at the level of the core 6 and shield 7. The coolant then flows downwards through the core 3, and between a cylindrical shield 14 and the support wall 5 to the channels 9. The double cooling, by the main coolant and the axuiliary coolant, of core fragments that fall into the cooling traps 8 ensures reliable dissipation of surplus heat, even on failure of one of the cooling systems. The cone 6 and shields 7, 14 are made of graphite. As an alternative to the cone 6, a pyramidal body could be used as the distributing means.
Patent GB-296897-A (GB)
Title: Improvements in or relating to shock absorbers
IPC: F16F9/06
Filed: 1927-09-17
Abstract: 296,897. Newton, N. B. Sept. 17, 1927. Fluid-friction vibrationdampers of the type in which a cylinder and piston co-operate to form a liquid pressure chamber on each side of the piston with restricted transfer passages, are provided with a compensating chamber or chambers containing compress - ible fluid and connected to one or both of the pressure chambers through a restricted passage. The liquid and the compressible fluid being in direct surface contact. The cylinder b and the piston a may be connected respectively to the axle and frame of a vehicle by connections including rubber or like members p, p<1>. The two chambers thus formed above and below the piston are connected by restricted passages a<1>, a<2>, which may be adjustable and may be provided with one way valves. The upper chamber, which is of less capacity than the lower chamber owing to the piston rod e, is connected to an upper compensating chamber m containing some air by means of the annular space between the piston rod e and the opening in the partition n. The piston rod e passes through a stuffing-box which includes gland leathers g, g' arranged so as to resist internal pressure. The cylinder head also carries a packing ring j<2> for a protecting tubular casing r movable with the piston e. Owing to the restricted passage for liquid past the partition n, the air in the compensating chamber m does not act as an elastic cushion. In a modification a gland leather is arranged between the partition n and the piston rod e to prevent air being carried downwards by the piston rods. The partition is in this case provided with small holes
Patent GB-425360-A (GB)
Title: Improvements in or relating to steering wheels for vehicles and the like
IPC: B62D1/06
Filed: 1933-09-04
Abstract: 425,360. Hand wheels. ROSS, W. S., Quintin, Seal, Sevenoaks, Kent. Sept. 4, 1933, Nos. 24507 /33 and 22371 /34. [Class 80 (iv)] An electrical heating resistance 14 is distributed uniformly around the exterior of the periphery. The resistance wire may be wound in a groove in the rim of the wheel and covered over by insulation. The resistance element may also be separate and is then attached by an annular trough-like case clamped to the under surface of the rim. Specifications 24049/14, 209,062, and 271,345, [all in Class 80 (iv)], are referred to.