baber/WOPTO huggingface dataset:
Patent GB-1430395-A (GB)
Title: Apparatus for and a method of projecting frames arranged in  succession on a film onto a viewing screen
IPC: G03B21/38
Filed: 1973-08-24
Abstract: 1430395 Multiple projection of cinematograph images A BRACHLIANOFF 24 Aug 1973 40339/73 Heading G2E A film bearing successive pictures is capable of selective advancement at different points along its length corresponding to different projection stations so that a frame change occurs at at least one station (but not all), the frames at the various stations being capable of selective projection on to a viewing screen, with means for preventing projection at any station at least during advancement of the film at that station. Apparatus for carrying out the above method comprises a plurality of projectors each having an illumination source 2, shutter 3, objective 1, frame gate 4, toothed drum 7 for advancing the film and a member e.g. mirror 8 for deflecting the projected beam on to a screen. To obtain a cinematographic effect a predetermined programme controls the illumination sources 2, the shutters 3 and the mirror 8 so that the light beams are projected in sequence on to the same screen, the frame in each projector showing a different phase of movement of the subject. The film is advanced through each projector by the associated toothed drum 7 while the beams from the other projectors are focused on the screen. Fig. 1 shows five projectors a, b, c, d and e which project the 17th, 13th, 9th, 5th and 1st frames respectively. After each projection the film is advanced by five frames so that the sequence of frames projected is as shown in Fig. 4. The projectors may also be controlled so that one projector continuously projects a still background while the remaining four projectors are operated in sequence to project the same four frames thus repeatedly showing the same movement - in this case there is no advance of the film. Also the beams may be deflected by mirror 8 to different portions of the screen so that a series of still images may be juxaposed or superposed, the projectors all operating at the same time and not in sequence.
Patent GB-1468585-A (GB)
Title: Three-phase load diverter switch
IPC: H01H3/30
Filed: 1974-09-17
Abstract: 1468585 Vacuum switches; tap changing systems MASCHINENFABRIK REINHAUSEN GEBRUDER SCHEUBECK KG 17 Sept 1974 [25 Sept 1973] 40361/74 Headings H1N and HIT A three-phase transformer tap changing switch comprises a first plurality of vacuum switches US1, UH1, &c., disposed in a circle around an operating shaft 1 and a second plurality of vacuum switches US2, UH2, &c., disposed in a circle around the operating shaft, the two circles being axially spaced along a common axis and of equal radius, and an energy storage device disposed axially between the first and second pluralities of vacuum switches actuating these switches in a sequence via a plurality of connecting and actuating members interconnecting respective vacuum switches of the first plurality with respective vacuum switches of the second plurality. The energy storage device comprises two interconnected discs 23, 24 forming a housing slidable on the operating shaft 1 and each carrying respectively one of two carriers of rollers 29, 30, two rings 15, 16, against which rest compression springs 17, each carrying respectively one of two further carriers of rollers 21, 22 and co-operate with cams 13, 14 which are rotatable. On rotating operating shaft 1 the cams turn and roller 21 rides on cam surface 131 whilst roller 29 is constrained to roll on the surface of a slotted disc 31, so that the two rollers are forced apart and the discs and rings are forced apart compressing springs 17. When roller 29 reaches a slot in disc 31 is passes through it abruptly under the influence of charged springs 17 to cause a sudden change in axial position of the energy storage device which is used to operate the contacts of the vacuum switches through the connecting and actuating members. The connector members comprise lost motion arrangements, Fig. 4, not shown. The cams 13, 14 and the slots in the discs 31, 32 are arranged during the complete rotation of the energy storage device to operate the pluralities of vacuum switches US1, UH1, UH2, US2, in the correct timing and sequence for tap changing, Fig. 6, not shown. During tap changing conventional switch-over resistances UR1, UR2 are briefly switched in.
Patent GB-1244219-A (GB)
Title: Inductive devices for compensating capacitive currents
IPC: H02J3/18
Filed: 1968-08-23
Abstract: 1,244,219. Transformers and inductors. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. 23 Aug., 1968 [24 Aug., 1967], No. 40387/68. Heading H1T. [Also in Division H2] An arrangement for compensating capacitive current in a 3-phase supply comprises a plurality of magnetic circuits each of which is energized by only one phase winding PW and a pair of differential D C. biasing windings GW, each associated with a magnetic circuit of the corresponding phase winding. Each phase winding may be divided into two equal component windings, each of which energizes a magnetic circuit. Six further windings DW may be employed for harmonic suppression. A fixed reactor #<SP>V</SP> may be switched in series with any of the windings and has specified inductances relative to that of the saturated main core. The magnetic circuits may be carried by three two- or three-limbed cores (Figs. 9-11, not shown), the D.C. limbs of which may be split or by six two- or three-limbed cores (Figs. 7, 8, not shown). Figs. 12 and 13 (not shown) relate to eight-limbed cores. The biasing current in windings GW may be automatically controlled in dependence on voltage, current, power factor, active or reactive power. Secondary windings may be included to feed loads. The arrangements are applicable to compensation for capacitive current in cable networks or to the adjustment of capacitor banks.
Patent GB-1092677-A (GB)
Title: Varifocal objective system
IPC: G02B15/14
Filed: 1965-09-24
Abstract: 1,092,677. Vari-focal objectives. M.C. SCHNEIDER and H. J. SCHNEIDER [trading as JOSEPH SCHNEIDER & CO.] Sept. 24, 1965 [Sept. 25, 1964], No. 40799/65. Heading G2J. A vari-focal objective comprises a fixed-focus rear lens group VI, consisting of four air-spaced lenses, preceded by a vari-focal forward lens group, formed from a fixed positive component I of the focal length f I ; a movable negative component II of focal length f II , consisting of a negative meniscus singlet L 4  concave to the image and an achromatic negative biconcave doublet L 6 , L 6 ; a movable negative component III whose focal length f III  is at least 10 per cent more than f II ; and a fixed positive component IV of focal length f IV  which is equal to or less than 75 per cent of f I  and is characterized by;- Optical data are given for the example shown and for another example, Fig. 2 (not shown), in which the front positive component r consists of a biconcave front lens L 1 ', two biconvex lenses L 2 ', L 3 ' and a positive meniscus L 4 '.
Patent GB-1511029-A (GB)
Title: Phase compressor for phase modulated signal
IPC: H03D3/18
Filed: 1975-10-07
Abstract: 1511029 Phase modulation compression SONY CORP 7 Oct 1975 [7 Oct 1974] 41044/75 Heading H3R A circuit for compressing the angular range of a phase-modulated signal at 1 for handling by a conventional phase demodulator 6 comprises n phase swing reducers 3A,...,3D connected in series and each including an adder 4A,..., 4D and a limiter 5A,..., 5D with each adder receiving a signal from the input or the output of the preceding reducer and a further signal from the output of the next following reducer except for the last reducer which has a reference signal S o  e.g. the carrier applied to the second input of the adder. The limiters are provided to limit the amplitudes of the signals to the amplitude of the reference carrier. A modified phase swing reducer (Fig. 10, not shown) includes in addition a low pass filter to eliminate higher harmonics and a phase compensator for the filter. The reference carrier is also applied to a second input of the demodulator 6 via a phase shifter 7.
Patent GB-1487844-A (GB)
Title: Polyester fibre
IPC: D01F6/62
Filed: 1974-09-20
Abstract: 1487844 Polyester filaments CELANESE CORP 20 Sept 1974 [26 Sept 1973] 41185/74 Heading B5B A polyester filament comprising at least 85 mol per cent of polyethylene terephthalate having an interconnected highly orientated crystalline microstructure coextensive with the length of said filament coexisting with an interdispersed disorientated non-crystalline phase and having a modulus ratio (as defined) of at least 0À1 is formed by melt spinning the polymer using a spinnerette 2, the filament 10 is pssed through a solidification zone 12 through which air at room temperature is passed then through a conditioning zone 26 maintained at 120‹ C. before being surface treated at 36 and wound up at 30. The solidification zone is 0,25-20 ft. and residence time is 0À0008-0À4 sees. and the conditioning zone is 0,5-30 ft. and residence time is 0,0004-0,8 sees.
Patent GB-1423090-A (GB)
Title: Apparatus for measuring permeability to gas
IPC: G01N15/08
Filed: 1974-09-23
Abstract: 1423090 Measuring gas permeability: flour meter SULZER BROS Ltd 23 Sept 1974 [21 Sept 1973] 41254/74 Headings G1R and G1S Apparatus for measuring the gas permeability of a specimen 1 in a holder 2 comprises a valve 19 for controlling the flow of gas to the holder, a flowmeter 11 having four scales A, B, C, D each calibrated in units of permeability and each corresponding to a different predetermined gas-pressure in holder 2, and a pressure gauge 6 for measuring the pressure in the holder 2, gauge 6 having marks A, B, C, D, corresponding to the predetermined gas-pressures. The specimen 1 may comprise foundry sand or other granular refractory material as a binder such as clay cement, synthetic resin or oil, and an additive such as water, synthetic resin hardeners, starch, wood dust, or coal dust. The apparatus may also be used to measure the porosity of powder metallurgy mixtures or sintered bodies.
Patent GB-1444015-A (GB)
Title: Pull-down devices for boring rigs
IPC: E21B19/07
Filed: 1973-05-23
Abstract: 1444015 Kelly pull-down mechanism G PERCY TRENTHAM Ltd 29 March 1974 [23 May 1973] 41403/75 Divided out of 1444014 Heading E1F The disclosure is incorporated in the parent Specification but the claims are directed to a kelly pull-down device.
Patent GB-1512299-A (GB)
Title: Pyrido(2,1-b)quinazolinones
IPC: C07D491/14
Filed: 1976-10-06
Abstract: 1512299 Substituted pyrido[2,1-b]quinazolin- 11-ones WARNER-LAMBERT CO 6 Oct 1976 [7 Oct 1975] 41459/76 Heading C2C The invention provides the title compounds, which inhibit antibody-antigen reactions.
Patent GB-1514834-A (GB)
Title: Steam turbine
IPC: F01D25/28
Filed: 1975-10-13
Abstract: 1514834 Steam turbines STAL LAVAL TURBIN AB 13 Oct 1975 [15 Oct 1974] 41788/75 Heading FIT The shaft 13 of a steam turbine is supported at each end in bearing blocks each consisting of two parts 4, 5 clamped to the stator housing 1 with freedom for thermal expansion. Each block is fixed axially by wedges 8 secured to brackets 2 on both sides of the shaft axis and slidably engaging recesses in block flanges 12 so as to permit transverse expansion. Bolts 6 pass through oversize holes in flanges 12 and are screwed into brackets 2, spacers 11 being provided. Transverse fixing of each block is effected by a wedge 10 on bracket 3 slidably engaging an axial recess in the bottom parts of the block with freedom for axial expansion.
Patent GB-1201343-A (GB)
Title: A gas-discharge source of phase incoherent microwave radiation
IPC: H01J17/04
Filed: 1967-09-14
Abstract: 1,201,343. Discharge tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 14 Sept., 1967 [16 Sept., 1966], No. 41999/67. Heading H1D. [Also in Division H4] A source of phase incoherent microwave radiation comprises a gas discharge tube in which the discharge includes a positive column and within the tube envelope a coaxial waveguide comprising a plurality of insulated sections 4 to 12, The tube comprises a glass envelope 1 sealed to a waveguide connector flange 2 having a mica window 3. Metallic sections 4 to 12 of differing lengths are secured by three ceramic rods 13 and spaced by glass tubes 14, 15. A glass funnel 16 extends from the envelope into the first section. The tube is filled with neon at a pressure of 1 to 20 torr. and a potential applied between an oxidic cathode 17 and section 12. The source can be used in nuclear magnetic resonance investigations.
Patent GB-1118319-A (GB)
Title: Improvements in or relating to thread tensioning devices in looms
IPC: D03D47/00
Filed: 1965-10-05
Abstract: In a shuttleless loom weft is tensioned by a number of flexible steel strips 10 acting against fixed plates 30, the strips being mounted in blocks 9 rotatable on a bar 6 and pressure being applied to each strip by separate, adjustable helical springs 21, 22.  The pressure is relieved by movement of a bar 15 which causes rotation of the blocks 9.
Patent GB-1361529-A (GB)
Title: Methods of finishing workpieces
IPC: B23Q11/10
Filed: 1972-09-12
Abstract: 1361529 Tumbling ROTO-FINISH CO 12 Sept 1972 [13 Sept 1971] 42333/72 Heading B3D Workpieces are finished by tumbling using abrasive chips of ice containing, e.g. sand, alumina, silicon carbide, diamond, quartz, boron carbide or zircon, a chilled hydrocarbon-based liquid being circulated through the mixture. The liquid may be, e.g. naphtha, kerosene, mineral spirits or a halogenated hydrocarbon, held at about - 29‹ C., and the chips may be of bar, nugget, cylinder, cone, prism, tube, ring or star-like form. The treatment may be carried out in a toroidal bowl or other vibratory finishing machine.
Patent GB-919393-A (GB)
Title: Improvements relating to grinding mills and processes
IPC: B02C17/00
Filed: 1959-12-14
Abstract: 919,393. Grinding mills. HUKKI, R. T., [trading as INSINOORITOIMISTO ENGINEERING BUREAU R. T. HUKKI]. Dec. 14, 1959 [Dec. 13, 1958], No. 42451/59. Class 59. The upward movement of a tumbling load induced by rotary movement of a mill 1 is braked by means of a device 14 so as to increase the pressure exerted by the tumbling load against the lining of the drum in a friction zone 22. The device 14 comprises a shaft 15 arranged concentrically or eccentrically in relation to the axis of rotation of the mill and hammers 16 fixed to the shaft, each hammer comprising a shaft 17 and a head 18. The device 14 is freely turnable in a bearing 19 carried by a support 20 and the outer end of the shaft 15 carries an adjustable weight 21. The device 14 may, however, be rigidly fixed or be positively oscillated. The mill is preferably intended for autogenous grinding and to that end is provided with holding bars 8, 10 around its inner cylindrical surface and on its ends. The griuding may be dry or wet and in the latter case, the tumbling load comprises the material to be ground, autogenous grinding bodies 11 and water which are introduced through a feeding trough 6. Part of the tumbling load is held between the bars 8, 10 to form autogenous linings 7, 9. The mill is preferably rotated at critical or supercritical speed. Ground material is discharged through an outlet opening 13. The mill drum may be conical or comprise cylindrical and conical sections. The mill is preferably supported on rollers 2 having pneumatic tyres 3. Specification 856,066 is referred to.
Patent GB-993514-A (GB)
Title: Removing hydrogen sulfide from gases containing the same
Inventor: HAMPRECHT GUENTHER
IPC: C01B17/04
Filed: 1963-10-29
Abstract: In a two-stage process for the removal of hydrogen sulphide from gases, a circulating aqueous suspension of finely ground active carbon is contacted with the gas containing hydrogen sulphide in a first stage, the hydrogen sulphide laden suspension is treated with oxygen or oxygen-containing gases in a second stage so that the active carbon becomes laden with the sulphur formed by oxidation, the suspension is recycled to the first stage and when the activity of the suspension has declined it is <PICT:0993514/C1/1> withdrawn from circulation and replaced by fresh or regenerated suspension.  After separation of the carbon from the withdrawn suspension, the sulphur may be dissolved out from the carbon by a conventional method, for example by ammonium sulphide solution, or the sulphur-bearing carbon may be burnt to give sulphur dioxide. The carbon preferably has a grain size of from 10 to 100 microns. The suspension preferably contains from 5 to 60 grams of carbon per litre and may also contain from 0.1 to 4% by weight of an alkaline substance to give a weakly alkaline aqueous suspension. Preferably the contacting in the first stage is carried out at temperatures from 0 DEG  C. to room temperature, and the oxidation in the second stage at temperatures from room temperature up to 60 DEG  C. The suspension may be cooled after leaving the second stage and before being recycled to the first stage.  The process is exemplified by use of the apparatus shown, in which suspension enters the top of tower 1 and passes in countercurrent with hydrogen sulphide containing gases entering at 5, the purified gas mixture leaving at 9.  The hydrogen sulphide laden suspension enters the top of tower 2 and passes in countercurrent with air entering and leaving at 6 and 10, respectively, the suspension then being recycled to the top of tower 1.  The suspension may be heated before entering and cooled after leaving the second stage by means of heat-exchangers 7 and 8, and may be withdrawn from circulation from reservoirs 4 and 5.
Patent GB-1504450-A (GB)
Title: Stenter frame clip chain assembly
IPC: B29C49/00
Filed: 1976-10-19
Abstract: 1504450 Tentering LINDAUER DORNIER GmbH 19 Oct 1976 [24 Dec 1975] 43307/76 Heading D1S [Also in Division B5] A stenter clip chain, e.g. for stretching thermoplastics film, comprises a guide rail 1 having vertical surfaces 6, 6', 7, 7' engaged by vertical - axis rollers 8, (8'), 8", (8"'), 9, (9'), 9" (9"') and top and bottom edges 10, 10' against which rollers 11, 12 respectively, bear. The rail 1, which may be of multi-ply construction, is clamped by a stud 4 in a web 3. The rollers 11 carry the weight of the clips or clip chain 13 and the rollers 12 prevent vertical lift-off or jumping-off of the rollers 11 and may be provided at intervals along the chain, i.e. not necessarily at every clip. The rollers are all mounted on a carrier 14 which combines upper and lower clip chain sections 15, 15' to form a double chain 16 and which carries a tenter clip 17.
Patent GB-995664-A (GB)
Title: Improvements in or relating to rear view wing mirror mountings
Inventor: HEFFORD CHARLES GEORGE
IPC: B60R1/076
Filed: 1962-11-16
Abstract: 995,664. Pivotal mountings. STADIUM Ltd. Nov. 26, 1963 [Nov. 16, 1962], No. 43490/62. Heading E2F. [Also in Division B7] A pivotal mounting for a rear view mirror on a vehicle comprising a base arranged to be secured on a part of a vehicle and a support arm rotatably mounted on the base, the base containing an indexing member slidable along or parallel to the axis of rotation of the arm and prevented from rotating about this axis, it being urged by a helical spring into engagement with an abutment provided on or secured to the arm to locate the arm in a normal indexed position and to assist the return of the arm to this position when the arm is turned. In one embodiment Fig. 1 the base comprises a threaded sleeve 1 attached to the body of the vehicle 2 and provided with a bush 6 seating one end of a helical spring 7 which also bears against a sliding cam block 8 located in a recess 16 in the base proper 17. The cam block is of polygonal cross-section (e.g. square) corresponding to the cross-section of the recess 16. A spindle 20 secured to the mirror arm 23 is formed with an enlarged portion 25 which extends through the cam block 8 with clearance, and is provided with a transverse pin 27 normally located at the bottom of a cam recess of cam block 8. On rotation of the arm 23, the pin rides up the cam surface, lowering the cam block 8 against spring pressure, which thus tends to return it to its normal index position. The arrangement of spring and cam-block may be inverted. Rollers 164 Fig. 12 (not shown) may be provided to locate and facilitate movement of the cam block in the recess. In another modification Fig. 2 the cam block 40 bears on a mating surface 45, not a surface of revolution, so that on rotation of the support arm the configuration causes the cam block to descend against spring pressure. The shapes of the mating surfaces may vary as in Figs. 3-6 (not shown) and may form a part or be attached to the support arm. Fig. 10 shows a support arm having a skirt 135 to exclude dirt and water. The mounting Figs. 9, 9a differs in having two sliding plungers 98 instead of a sliding block. Plungers 98 slide in borings 99 in the base member 100 and project against pressure from springs 111 into an annular groove 101 in the base of the mirror carrying arm 102. This annular groove varies in depth providing pockets 104 at opposite sides of the axis.
Patent GB-1181894-A (GB)
Title: Magnetometer
Inventor: MOGILEVSKY VITALY MORITSERVICH
IPC: G01R33/028
Filed: 1967-09-25
Abstract: 1,181,894. Magnetometers. INSTITUT GORNOGO DELA SIBIRSKOGO OTDELENIA AN SSSR. Sept.25, 1967, No.43510/67. Heading G1N. In an oscillating coil magnetometer, the coil 1 is coupled with a magneto-strictive auto-oscillator having an oscillating rod made of a temperature compensated laminated material. Excitation coil 8 is energized by the push-pull output of an amplitude stabilized amplifier 10 employing cathode followers with a step-up transformer II as an interstage coupling unit. A pick-up coil 9 feeds the first stage of amplifier 10. The coil 1 may comprise, as shown, two sections 2, 3 of length L and L + # respectively, connected in series opposition for measuring the tangential component of a magnetic field on the surface of a specimen, using extrapolation. Alternatively, the coil 1 may comprise only one section for measuring the induction in air-gaps of magnetic circuits.
Patent GB-1204935-A (GB)
Title: A device suitable for pressing nuts
IPC: B30B1/26
Filed: 1968-09-13
Abstract: 1,204,935. Making nuts; punching. NEDSCHROEF OCTROOI MAATSCHAPPIJ N.V. 13 Sept., 1968 [18 Sept., 1967], No. 43717/68. Headings B3A and B3W. A punch and die assembly for making nuts or the like comprises a frame 1 in which is mounted a reciprocable slide 2 which operates punches 16a, 16b, 16c co-operating with dies 15a, 15b, 15c, the punches and dies being mounted in a single block 10, 11 which is removable from the assembly as a single unit. The block comprises a back part 10 carrying the dies and a front part 11 carrying the punches, the two being separated by a gap 17 through which the workpieces are moved from one punch and die to another by means of rotating fingers 18a, 18b, 18c, 18d. The fingers are driven by means of gears 45 from a sprocket 24 linked by a chain 23 to a sprocket 22 mounted on a shaft 19 which is driven by the crankshaft 4 which reciprocates the slide 2. Ejectors mounted in dies 15a, 15b are operated by rocker arms driven by linkages from shaft 19.
Patent GB-1200684-A (GB)
Title: A coupling for a pipe, conduit or the like
IPC: F16L47/12
Filed: 1968-09-13
Abstract: 1,200,684. Moulding pipe couplings. AMP Inc. 13 Sept., 1968 [3 Oct., 1967], No. 43786/68. Heading B5A. [Also in Division F2] A mould M for a pipe coupling has laterally closing die halves 13, 14 and a die 16 which includes a core pin 15 and an annular groove in which is moulded the nose 10 of the coupling. Recesses are provided in the pin to form lugs 9a on the coupling.