baber/WOPTO huggingface dataset:
Patent GB-1102806-A (GB)
Title: Improvements in electric current controlling circuits
IPC: H02P7/293
Filed: 1965-09-20
Abstract: 1,102,806. Rectifying; control systems for consumption apparatus; control of motors. THOMSON AUTOMATISMES. 20 Sept., 1965 [18 Sept., 1964], No. 40071/65. Headings H2F, H2H and H2J. In an arrangement in which current to a load, e.g. an electric motor, is controlled by phase control of a thyristor across the D.C. terminals of a diode bridge fed from an A.C. source, a non- linear element is included in the circuit to ensure that at the end of each half-cycle the current falls below the thyristor holding current to ensure proper shut-off. As shown a rectifying circuit comprises a bridge of diodes 5, 6, 7, 8, a load 3 and a thyristor 4. A non-linear element is in series with the thyristor, and may be constituted by a silicon rectifier cell, one or more selenium rectifier cells or a varistor, and may be included in the A.C. side of the bridge or within the bridge. The load may be in the A.C. or the D.C. side of the bridge.
Patent GB-1094026-A (GB)
Title: Automatic frequency control system
IPC: H03J7/00
Filed: 1966-09-08
Abstract: 1,094,026. Automatic frequency control systems. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Sept. 8, 1966 [Sept. 15, 1965], No. 40124/66. Heading H3A. A tuned circuit for a radio or television receiver tuned manually by means of a potentiometer P controlling the bias across a voltagevariable capacitor D, and tuned automatically by an A.F.C. voltage U, from a frequency discriminator, is characterized in that the A.F.C. voltage is applied to the potentiometer P through a potential divider formed by resistances R 1  and R 2 . By suitably selecting the voltage-dividing ratio, the pull-in range of the automatic frequency control may be made practically independent of both the capacitor bias and the tuning frequency over a wide range. To maintain the pull-in range constant in different wavebands, the resistances R 4 -R 6  are selectively included in the potential divider circuit according to the position of a switch S ganged to the wave-change switch.
Patent GB-1338370-A (GB)
Title: Method of fabricating nitrides of gallium and indium
IPC: C23C14/06
Filed: 1972-08-30
Abstract: 1338370 Sputtering gallium and indium nitrides INTERNATIONAL BUSINESS MACHINES CORP 30 Aug 1972 [28 Sept 1971] 40158/72 Heading C7F Gallium or indium nitride is R.F. sputtered on to a substrate 15 by sputtering from a Ga or In target in a nitrogen plasma. The substrate may be given a D.C. or A.C. bias, and an impedance matching circuit 9, 11, 13 is used for an A.C. bias. The target holder may be a Cu disc with a diffusion barrier of Ni, Mo, W or gallium nitride between it and the In or Ga. Coils 31 provide a magnetic field perpendicular to the plane of the substrate. The target has a removable ground shield 33. A movable shutter 47 is used for a presputtering operation. A Ti sublimation pump 53 is used together, e.g. oxygen or compounds thereof. Nitrogen is admitted through a pipe 63. Argon may be used for sputter cleaning the substrate. The substrate may be sapphire silicon, fused quartz, Si C, Mo, W.
Patent GB-977318-A (GB)
Title: Disc brake
Inventor: GODDARD ARTHUR
IPC: F16D63/00
Filed: 1961-11-09
Abstract: 977,318. Combined disc and drum brakes. GIRLING Ltd. Oct. 26, 1962 [Nov. 9, 1961], No. 40165/61. Headings F2E and F2F. A disc brake in which a rotatable disc 10 is mounted on a shaft 11 within a stationary housing 12 provided with a parallel-sided radial gap 28 such that the friction pads 22, 24, adapted to engage opposite faces of the disc, and a brake shoe 32, provided with a friction pad 31 adapted to be applied to the periphery of the brake disc, are housed in the gap 28 such that the parallel sides of the gap take the torque on the friction pads and the brake shoe when these are applied to the disc. In the embodiment shown in Figs. 1 and 2 the brake disc is adapted for limited axial movement on a shaft 11 and only one friction pad 22 is axially slidable into engagement with one face of the disc by means of an hydraulic piston and cylinder device 19, 16 and the disc is then moved axially into engagement with a stationary brake pad 24. Movement of the piston 19 also actuates a radially disposed lever 41, pivoted to a pin 33 connecting the brake shoe applying lever 34 to the brake shoe 32, such that the shoe assembly is moved through a distance equal to half that through which the piston moves and the shoe is kept in radial alignment with the disc. When it is necessary to renew the friction pads 22 and 24, the cover 36 is removed together with the shoe 32 and lever 34 and the worn friction pads together with their backing plates are then withdrawn through the open outer end of the gap, when curved brake springs 42 have been removed, so that new pads can be substituted. In a further embodiment (Fig. 5) the hydraulic piston 19 is provided with an axial recess in its rear face into which projects an axial rod 47 fixed to the closed outer end of the cylinder and a blade spring 48 is arranged within the recess to bear frictionally on the rod on the wall of the recess. The brake disc being axially movable on the shaft tends to knock the piston back into the cylinder and the blade spring 48 prevents or reduces this effect. An heat insulating washer 45 may be located between the inner end of the cylinder 16 and the housing 12 to minimize heat transference. Instead of providing an axially slidable brake disc 10, friction pads may be applied to opposite faces of an axially fixed disc by pistons working in opposed hydraulic cylinders in the housing.
Patent GB-1128224-A (GB)
Title: Electrically heated socks
IPC: A41B11/00
Filed: 1966-09-08
Abstract: 1,128,224. Electrically heated socks. R. J. COSTANZO. 8 Sept., 1966 [13 Sept., 1965], No. 40227/66. Heading H5H. A sock 10 is heated by a circuit including a battery 15 mounted in a pocket 16 in the ankle band 11, a heater 12 mounted in a pocket 13 in the toe, conductors 22, 23, a thermostat (26, Fig. 2) and switching means. The heater 12 comprises a flat resistor strip (14, Figs. 2, 4) of Ni-Cr alloy, sandwiched between Al foil radiation strips (25, 25A) and secured thereto by electrically insulating adhesive coatings (25<SP>1</SP>). The foils (25, 25A) may also be insulated by anodizing. The battery 15 releasably snap fits in its holder 17. The conductors 22, 23 have a covering 24.
Patent GB-1041576-A (GB)
Title: Atomic beam apparatus
IPC: H01S1/00
Filed: 1963-10-11
Abstract: 1,041,576. Molecular beams. VARIAN ASSOCIATES. Oct. 11, 1963 [Oct. 29, 1962]. No. 40310/63. Heading G6P. A stable frequency standard is derived from the magnetic resonance of caesium induced by the injection of electromagnetic radiation into a beam of caesium atoms. The beam is formed from liquid caesium, evaporated electrically and then collimated. The evaporation is effected by heating elements controlled by a thermistor mounted on the frame supporting the liquid caesium reservoir. A cone-shaped reentrant passage connects the collimator and the vapour chamber and returns liquid to the reservoir. The beam is passed through a waveguide system which, when excited, at the required resonance frequency, directs the beam on to a detector. The oscillator supplying the guide system is locked to the resonance frequency by an error circuit fed from the detector. The beam container is formed of a stainless steel, evacuated tube and thallium and rubidium may be used in place of caesium.
Patent GB-1032166-A (GB)
Title: Bottle filling apparatus
IPC: B67C3/28
Filed: 1964-10-09
Abstract: 1,032,166. Bottling. HOLSTEIN & KAPPERT MASCHINENFABRIK " PHOENIX " G.m.b.H. Oct. 9, 1964 [Oct. 19, 1963], No. 41272/64. Heading B8T. Filling valves on a rotary filling machine are operated by control members which are actuated by a lever mounted roller. The presence of a bottle in a carrier (not shown) operates a control to actuate a piston rod 5 in an hydraulic cylinder 6, pivoted at 13, so as to rotate a lever 4 about its bearing 3, Fig. 2 (not shown), and lower a roller 15 into the path of a filling control member 16 which is thus rotated on contact with the roller to operate the filling valve.
Patent GB-843080-A (GB)
Title: Improvements in or relating to yarn winding machines
Inventor: ABBOTT SAMUEL LEBARON
IPC: B65H59/00
Filed: 1958-12-22
Abstract: 843,080. Winding yarns, tension setting means. ABBOTT MACHINE CO. Inc. Dec. 22, 1958, No. 41289/58. Class 120(2). A winding machine with several winding units including adjustably loaded tension devices has tension device setting mechanism adapted to apply load to the tension devices and means for causing relative motion between the setting mechanism and the several tension devices so as to associate the setting mechanism with the several tension devices in succession, the setting mechanism being adjustable to establish various degrees of loading of the several tension devices. In the embodiment shown the tension disc 21 is pressed against disc 20 by a cranked lever 24 which is acted upon through a torque reducing device by a torsion spring 30 enclosed in tube 31. At its other end spring 30 carries a rotatable member 44 which is used to put the spring in a state of tension and thus load the tensioner. The member 44 is rotated by rack 54 on arm 55 past which each winding unit travels and the arm is urged yieldingly upward by spring pressed plunger 57. The arm 55 carries, in adjustable manner, a shield 60 which engages with a sleeve 61 on member 44 and during this engagement the rack 54 is prevented from engaging the member 44. When the sleeve 61 reaches the end of the shield 60 the rack 54 rises into mesh with the member 44 and rotates it until it leaves the rack. The rotation of member 44 is held by a suitable pawl arrangement. The length of the rolling engagement of member 44 with rack 54 as regulated by the position of shield 60 regulates the degree of torsion applied to spring 30 and consequently the loading of the tension device. As each winding unit approaches the tension setting device the pawl mechanism may be released by a cam thus allowing the member 44 and spring 30 to return to the neutral position. In operation once the tension devices of all the winding units have been set to give the desired tension in the yarn being wound the setting mechanism is thrown out of action until it is desired to change the setting of the tension devices.
Patent GB-1394984-A (GB)
Title: Liquid atomising arrangements
IPC: B05B5/025
Filed: 1972-03-29
Abstract: 1394984 Apparatus for spraying charged liquids J J DE LA CIERVA 29 March 1972 [31 March 1971 13 March 1972] 41413/74 Divided out of 1380827 Heading B2F The Specification describes and claims a liquid atomising and ionising arrangement in a system for neutralising electrostatic charge identical to that described in the parent specification.
Patent GB-1119967-A (GB)
Title: Improvements in and relating to a land or under water pipe line
IPC: F16L3/06
Filed: 1965-09-29
Abstract: 1,119,967. Detecting leaks in pipe-lines. G.F. WITTGENSTEIN. Sept. 29, 1965 [Oct. 7, 1964; Dec. 8, 1964], No. 41424/ 65. Heading G1S. In apparatus for detecting leaks in pipe-lines, the conduit 1 is surrounded by an envelope 2, a junction 4 being provided which communicates with the product in the conduit at 5, and at 6 with the interspace between the conduit and the envelope, channels 7 and 8 from the conduit and the interspace respectively communicating with chambers 9, 10 of the cylinder 11. The piston rod 13 of the cylinder 11 lies in contact with switches 31, 31', 31" controlling a pumping system. Water is pumped from a reservoir 27 through a conduit 14 to fill the interspace. Cables 15, 15' extend through the envelope under tension. In operation, the piston 12 is normally in equilibrium but if it moves to actuate any of the switches 31, 31', 31'' water is automatically pumped along the conduit 14 to restore the equilibrium position. Thus if the break is in the envelope the pressure loss will be large, and if it is in the conduit it will be small. The cables 15, 15' are marked by the chemical reaction between the water and the leaking substance, and may be subsequently withdrawn to determine the position of the leak.
Patent GB-898269-A (GB)
Title: Improvements in photographic high-speed lenses
Inventor: DANNBERG WOLF
IPC: G02B13/04
Filed: 1960-12-02
Abstract: 898,269. Optical objectives. ZEISS JENA, CARL VEB. Dec. 2, 1960, No. 41632/60. Class 97(1). The objective consists of a converging part which comprises five elements and in which between two positive elements there are disposed two negative menisci, the front meniscus consisting of two cemented elements of opposite sign and the rear meniscus being a single element, and of a dispersing part which is a negative single meniscus disposed at a distance in front of the converging part of 0.3 to 0.45 times an overall length of the lens, and is characterized in that the two positive elements are asymmetrical biconvex glasses the less curved surfaces of which face each other; the difference between the refractive indices of the second and first elements is between 0 and 0.05 (the elements being numbered from the front); the mean value of the refractive indices of the third and fourth elements is greater than 1.7; the Abbe number of the second element is between 50 and 55; the difference between the Abbe numbers of the first and second elements is between 5 and 10; the difference between the Abbe numbers of the third and fourth elements is between 25 and 30; the overall length of the lens is greater than 1.6f and smaller than 1.8f; and the back focal length is greater than .75f and smaller than .85f. Preferably the ratio of the radii of the second element is numerically between 4 and 6, whereas that of the sixth element is numerically greater than 10. The focal length of the fifth element may be between 2f and 3f, whereas the focal length of the sixth element is numerically between 0.8f and 0.9f. The rear radius of the objective is preferably between 0.5f and 0.6f. Optical data are given for two examples of the objective shown.
Patent GB-1394033-A (GB)
Title: Multi-cylinder double-acting stirling cycle engine
IPC: F02G1/044
Filed: 1973-09-05
Abstract: 1394033 Multi-cylinder stirling cycle engines UNITED STIRLING (SWEDEN) AB & CO KB 5 Sept 1973 41648/73 Heading F1S The invention relates to a multi-cylinder, double-acting Stirling cycle engine of the kind having a combustion chamber 8 located between cylinders 1 and regenerator cooler units Z and a single crank-shaft 10 located below the combustion chamber and the cylinders and regenerator cooler units, the crank being actuated through piston-rods 6 carrying crossheads 7. According to the invention each piston-rod 6 is connected to a respective connecting rod 11 via a respective lever 12 pivotally mounted on a stationary part of the engine below the crank-shaft, the lever being actuated from the piston-rod through a rod 14 pivotally connected at one end to the crosshead and at the other end to the lever.
Patent GB-986255-A (GB)
Title: Improvements in and relating to strap-engaging and adjusting devices
IPC: B60P7/08
Filed: 1963-10-22
Abstract: 986,255. Strap tensioning devices. EASTERN ROTORCRAFT CORPORATION. Oct. 22, 1963 [Oct. 22, 1962], No. 41656/63. Heading F2G. A strap tensioning device comprises a frame 4 having a hook 5 or similar anchorage means and carrying a strap-engaging drum 6 and ratchetwheel 7 rotatively mounted on the frame, a rotatably mounted handle 8 carrying a spring- loaded driving pawl 20 engaging the ratchet teeth to rotate the ratchet as the handle is moved, a spring-loaded stop pawl 17 mounted on the frame to prevent recoil of the ratchet, wherein a stop 28 on the frame limits the driving stroke of the handle and the driving pawl 20 can be manually retracted to clear the stop 28 and permit further swinging of the handle to a final limiting position in which the driving pawl is engageable by locating means on the frame to lock the handle, which is further provided with means to disengage the stop pawl from the ratchet-wheel when approaching and attaining the final limiting position. The drum 6 consists of two part cylindrical sections 6a fitting in apertures in the ratchet-wheel and having a channel 11 between them to receive the strap. The sections 6a rotate in a circular aperture in the frame 4. The handle 8 carries the pawl 20 sliding in an aperture 21. The pawl has a flange 23a allowing the pawl to be manually retracted and the nose 24a of the pawl is offset with respect to the handle but radial with respect to the ratchet. At the end of the stroke the driving pawl engages stop 28 but the pawl can be retracted and the handle be swung further until the pawl engages stop 32 and fits into recess 31 to be locked in position. As this occurs, cam surface 30 of the handle engages the stop pawl 17 sliding in channel 14 to retract it and free the ratchet allowing the strap to be released.
Patent GB-1100688-A (GB)
Title: A foldable box-blank
IPC: B65D77/20
Filed: 1965-09-30
Abstract: 1,100,688. Cartons. GEBR. EICKHOFF MASCHINENFABRIK U. EISENGIESSEREI m.b.H. 30 Sept., 1965 [30 Sept., 1964], No. 41663/65. Heading B8P. A blank for a box comprises a base panel 1, four side panels 2, 2<SP>1</SP>, 3, 3<SP>1</SP>, gusset panels 5 each with a diagonal fold line, a second diagonally foldable panel alongside each of at least a pair of the gusset panels 5, and edge strips 4, 11-14, the arrangement being such that each said second panel when the box is erected, forms a triangular member 15 Fig. 4 overhanging a corner. In a modification, Fig. 6 (not shown), the blank includes a lid panel.
Patent GB-1390992-A (GB)
Title: Communications transmission system
IPC: H04B10/508
Filed: 1972-09-08
Abstract: 1390992 Transmission of information over optical links LICENTIA PATENT-VERWALTUNGS-GmbH 8 Sept 1972 [8 Sept 1971] 41871/72 Headings H3T and H4K [Also in Division G1] A system for transmission of pulsed information over a plurality of parallel channels, comprises a plurality of laser sources L11, L21, &c., illuminating the ends of a first set of fibre optic guides 1, 2 &c., whose outputs are detected at a repeater station by a plurality of photodetectors D11, D21 &c. The repeater station includes circuitry whereby the laser outputs L12, L22 to the next set of fibre optic guides 12, 22 &c., are arranged to be in phase with one another. In the system of Fig. 1, the optical link using guide 3 is reserved for timing control pulses, which are sensed, after detection at D31, by threshold circuit Sch31. The amplifiers VS11, VS21 &c. in the information channels are controlled by Sch31 so that the information pulses are regenerated in phase with one another. If the fibres in the different parallel channels are of different lengths, timing pulses from Sch31 to amplifiers VS21, VS31 may be supplied with differential delays to compensate for this. Device A is provided to pick off and if required suppress communication on particular channels. Instead of the device Sch31 of Fig. 1, more complicated timing pulse regenerator circuits may be used, suitable for systems using long paths. In Fig. 2 (not shown), an integrator feeds a threshold device, such that only after several timing pulses have been received, is a regenerated pulse produced. A feedback loop resets the integrator each time. In Fig. 3 (not shown), a series of opto electronic links act as delay lines, feeding a common summing amplifier and threshold device. In the alternative system of Fig. 4, a timing control channel is not provided, timing inaccuracies being corrected in the repeater by summing at B the outputs from all channels and feeding a threshold device Sch to develop a timing pulse from G which is used to retain the phase synchronism of all channels by control of amplifiers VS11 &c. The apparatus has application in video phase transmission.
Patent GB-1142247-A (GB)
Title: Improvements in members comprising two threaded parts connected by a shank part
Inventor: LAYTON DENIS NOEL
IPC: F16B35/04
Filed: 1966-09-21
Abstract: 1,142,247. Bolts. FREDK. MOUNTFORD (BIRMINGHAM) Ltd. 19 Sept., 1967 [21 Sept., 1966], No. 42116/66. Heading F2H. [Also in Division B3] A stud bolt is made by friction welding an internally or externally threaded part to each end of a cylindrical part. The friction welding operations may be carried out simultaneously or consecutively and the threaded parts may both be internally or externally threaded or one may be internally threaded and the other externally threaded. The threaded parts may be of the same or different diameters and may be of a larger diameter than the cylindrical part. In an embodiment a plain cylindrical blank 10 and two larger diameter blanks 11 with rolled or cut threads 12 are held in chucks or jigs to be coaxial and relative rotation is caused between the blanks 11 and the blank 10 while they are forced into contact. When a sufficiently high temperature is reached the relative rotation is stopped and the parts are forced together at increased pressure to complete the friction welds. The weld flash is removed by a tool moved along the friction welding apparatus or in a separate lathe.
Patent GB-907500-A (GB)
Title: Grater
IPC: A47J43/25
Filed: 1960-12-08
Abstract: 907,500. Graters. SCRASIA, M. Dec. 8, 1960 [Dec. 11, 1959], No. 42215/60. Class 28 (2). An elongated grater surface A is set at the bottom of a groove defined by upstanding walls B, B<SP>1</SP> which present broad smooth raised surfaces to the user's hand. As shown, Fig. 1, an arcuate metal sheet A with sharp grating pins and holes on its external surface is mounted on the arcuate side of a frame C between two semi-elliptical smooth walls B, B<SP>1</SP>. In modifications, the walls B, B<SP>1</SP> may be mounted on a flat surface with a flat or curved grater, Fig. 4, between them. A conventional grater may have walls B, B<SP>1</SP> mounted on it leaving only the centre part uncovered.
Patent GB-1282679-A (GB)
Title: Thermoplastic moulding compositions
IPC: C08K5/098
Filed: 1970-09-07
Abstract: 1282679 Moulding composition FARBWERKE HOECHST AG 7 Sept 1970 [5 Sept 1969] 42678/70 Heading C3R A thermoplastic moulding composition comprises a mixture of (a) a linear saturated polyester of an aromatic dicarboxylic acid and, optionally, up to 5 mole per cent calculated on the total amount of the dicarboxylic acid, of an aliphatic dicarboxylic acid, and a saturated aliphatic or cycloaliphatic diol, and (b) from 0À005 to 2% by weight, calculated on the polyester, of a sodium, lithium or barium salt of a monocarboxylic acid, having a particle size below 10 microns. Specified polyesters are polyethylene terephthalate and polycyclohexane- 1,4-dimethylol terephthalate. The composition may also contain copolymers of ethylene/vinyl acetate, ethylene/acrylic ester or butadiene/ styrene. The examples describe moulding compositions of polyethylene terephthalate with sodium stearate, sodium acetate or sodium formate.