baber/WOPTO huggingface dataset:
Patent GB-1398252-A (GB)
Title: Internal combustion engines
IPC: F02M23/04
Filed: 1973-07-31
Abstract: 1398252 Automatic control of air/fuel ratio B LAPRADE X LAPRADE and P GELE 31 July 1973 [2 Aug 1972] 36452/73 Heading G3R To correct the fuel/air ratio to an internal combustion engine, the air intake to the engine is controlled, using pulses synchronized with the engine, if the measured oxygen content of the engine exhaust gas is less than a pre-set value, or if the measured CO content is above a pre-set value. As shown, pulses pass from a circuit 9 to control an air valve 7 if the oxygen content of the exhaust gas of cylinder 1, as measured by a zirconium oxide probe 8, is less than a threshold value, the pulses being synchronized with the engine speed by a pick-up 11. A predetermined amount of air thus passes for each pulse from pump 12, driven by the engine, to the engine air inlet 3. The probe output may be integrated at 16, and the fuel/air mixture obtained from a carburetter 2, or a fuel injection system. A rich mixture may be allowed under certain engine conditions e.g. for high loads or speeds, at tickover or when the engine is cold, using for example a tachogenerator measuring engine speed, or by falsifying the probe output by introducing air from pump 12 into the engine exhaust, see Fig. 5 (not shown).
Patent GB-1024835-A (GB)
Title: A process and apparatus for low-temperature dehydration
Inventor: MARGITTAI THOMAS
IPC: F26B21/08
Filed: 1961-10-11
Abstract: 1,024,835. Drying methods and apparatus. MARGITTAI. A. G. Oct. 2, 1962 [Oct. 11, 1961], No. 36466/61. Heading F4G. [Also in Division A2] Moisture-containing food or other material is dehydrated by continuously recirculating over it a gas or gas mixture inert to the material, the gas or gas mixture being cooled so as to bring the material to within the temperature range of -10‹ C. and +15‹ C., preferably between - 5‹ C. and +10‹ C., continuously passing the gas or gas mixture over a hygroscopic material for extraction therefrom of moisture taken up by it from the material to be dehydrated and continuously recirculating the hygroscopic material through heating means for driving off the moisture absorbed by it from the gas or gas mixture. Material stacked in trays 5 is dehydrated by circulating in the direction of the arrows 12 a gaseous mixture produced by igniting a pre-determined quantity of alcohol at a burner 9, the heat of combustion being removed through a heat exchanger 10. The temperature of the gaseous mixture is regulated by the heat exchanger 13 of a refrigerator 14 and moisture is extracted by exposing the gaseous mixture to hygroscopic material progressing downwardly on inclined reciprocating perforated trays within a frame 7. Liquefied hygroscopic material collected in a receptacle 15 at the base of the frame 7 is taken through an evaporator 22, a concentrator 23 and a drum dryer 24, and the dried material is passed to a collecting tray 25 for recirculation.
Patent GB-1507946-A (GB)
Title: Screw press for removing water juice oil or other liquid from organic or inorganic material
IPC: B30B9/26
Filed: 1975-09-04
Abstract: 1507946 Screw press for extracting liquids USINE DE WECKER Sarl 4 Sept 1975 [15 May 1975] 36489/75 Heading A4C [Also in Division B 1 ] A screw press for extracting water, juice, oil or other liquids comprises a pair of screws 1, 2 which project into a filter housing 3 formed of porous permeable sintered metal comprised of spheres, powder, granules or fibres and preferably of steel or Cr-Ni-Mo-steel alloy, the housing being cylindrical and having projections which are engaged by supporting ribs 14 within a surrounding liquid collecting vessel 9. A discharge channel 10 at the bottom of the ribs leads to a valved discharge pipe 11 through which steam can be supplied to clean the housing by reverse flow. The space between the housing and collecting vessel is closed by annular end plates which support the housing both radially and axially. The screws are driven by a motor 4 and pass through a reception space 5 for the material to be pressed, the outlet end of the housing being adjusted in cross-section by a throttle 7.
Patent GB-1514245-A (GB)
Title: Electrographic apparatus and method
IPC: G03G15/00
Filed: 1975-09-04
Abstract: 1514245 Measuring electric field strength EASTMAN KODAK CO 4 Sept 1975 [6 Sept 1974] 36509/75 Heading G1U A probe, for example for measuring the electric field adjacent to a web 12, Fig. 2, forming part of a zerographic printing apparatus, comprises electrode pairs 16a, 16b;..., mounted on an insulating cylinder which is rotated as the web passes by, so that the electrodes are successively exposed (in pairs) via a gap in an earthed shield 30, to the web. The right-hand and left-hand groups of electrodes are each connected to a slip ring 20, and thence, via a brush 24, and a capacitor to earth, the voltage across the capacitor being appropriately amplified and displayed Fig. 3 (not shown).
Patent GB-361637-A (GB)
Title: Improvements in lubricating pumps
IPC: F16N13/10
Filed: 1930-12-04
Abstract: 361,637. Lubricating-pumps. BOSCH AKT.-GES., R., 4, Militarstrasse, Stuttgart, Germany. Dec. 4, 1930, No. 36551. Convention date, Dec. 18, 1929. [Class 102 (i).] In a lubricating-pump, in which the cylinder block is integral with the sump cover h, the driven spindle f is arranged in the median plane and is formed at each end with a coupling e so that either end can be engaged with the driving, spindle c, or with another pump unit. The spindle f, which forms the distributing valve, engages at each end a loose cam 14 by means of a pin 15. Each cam engages both arms of a bell-crank lever 16, the cam having two swells to oscillate the lever twice per revolution of the spindle f. The horizontal arms of the levers 16 are connected by a bar 17 engaging yokes 18 on the plungers k, which are arranged laterally to the spindle f. The bores i in which the plungers reciprocate are connected by passages m to grooves n in the spindle f. Axial grooves o from the grooves n connect the bores i in succession to an axial bore t communicating with the suction pipe v, to bores q leading to discharge tubes w in the sight chamber 20, in which trapped air escapes, to passages drawing from the sight chamber and to passages 10, 11 leading to the discharge pipe 12. The grooves are arranged alternately diametrically opposite, so that, at each dis-. charge stroke, half the plungers discharge to the sight chamber and half to the discharge pipe 12.
Patent GB-1027498-A (GB)
Title: Improvements in or relating to dielectic materials for electoluminescent panels and electrical condensers
IPC: H01B3/44
Filed: 1963-09-17
Abstract: The dielectric of an electroluminescent lamp comprises a copolymer of vinylidene fluoride with a perfluoroalkyl perfluorovinyl ether in which the alkyl group has 1-4 carbon atoms or 1,1-difluoroisobutylene.  20-80w./o. phospher may be incorporated in the dielectric. Phosphers mentioned are copper-activated zinc or cadmium sulphide, copper oxide, and boron nitride.  A lamp may be formed by placing a sheet of the phospher-containing dielectric on a steel disc, placing a polyethylene terephthalate spacer on the disc around the dielectric, and covering the cell with a tin oxide coated glass sheet.
Patent GB-1092669-A (GB)
Title: Photographic diaphragm and shutter assembly and camera comprising the same
IPC: G03B7/081
Filed: 1965-08-27
Abstract: 1,092,669. Photographic cameras. AGFAGEVAERT A.G. Aug.27, 1965 [Aug.27, 1964], No. 36933/65. Heading G2A A diaphragm disc 1 having apertures 3 is rotatable in direction a about a spindle 2 through a friction coupling with a shutter blade 6 attached to a spring 7. The disc 1 has an elongated slot 4 for exposing photo-sensitive member 5. Upon release of lever 21, shutter blade 6 is released to rotate in direction a with disc 1. A cam 19 opens switch 10 in a timing circuit including the photo-sensitive member 5, a current source 8, and a capacitor 13. After a period determined by the resistance of member 5 an electromagnet 11 is de-energized to cause pawl 15 to arrest disc 1 and blade 6 Fig. 3 (not shown). Exposure takes place through the aperture 3, Fig. 1, selected in response to scene illumination. A switch 14 is closed upon de-energization of electromagnet 11 to re-energize electromagnet 11 after a period depending on the resistance of member 5. Pawl 15 is withdrawn to permit further rotation of the disc 1 and blade into the run down position, Fig. 4 (not shown).
Patent GB-1039849-A (GB)
Title: Separating and adjusting devices for feed rollers
IPC: B21D43/09
Filed: 1964-09-10
Abstract: 1,039,849. Metal sheet feeds. H. RASTER, [trading as HERMANN RASTER KOMM. GES.]. Sept. 10, 1964 [Sept. 19, 1963], No. 37068/64. Heading B3W. [Also in Division B6] A displacement device for feed and pressure rollers in which one of two co-operating geardriven rollers is carried on a pivot arm journalled on an axis concentric with the axis of a driving gear for the rollers and is thus movable along an arcuate path, the depth of engagement between the teeth of the driving gear and a driven gear secured to the roller remaining unchanged. An upper feed roller 1 has a coaxial gear 3 which meshes with a driving gear 5 and a lower feed roller 2 has a coaxial gear 4 which is driven from the gear 5 through an idler gear 6. The upper roller 1 is carried on an arm 7 which is journalled on the shaft 8 of the gear 5 and is biased upwardly by an adjustable tension spring 10. The roller 1 is forced down by a push rod 12, actuated by an eccentric 15, and which bears on a cam 14 pivotally mounted on a shaft 16 journalled in the arm 7. The shaft 16 has mounted thereon a fork 17, Figs. 3 and 4 (not shown), engaged by a finger 18 on a pivot arm 19 mounted on a shaft 22. The shaft 22 may be oscillated by a machine 20 to raise the roller 1 after each working cycle of the machine 20. The minimum distance between the rollers may be pre-set by angular displacement of the pivot arm 19 and this is provided for by two adjustment screws 26 and 27 mounted in the head 21 of the arm 19. The screws bear on a bush 25 between the head 21 and the shaft 22 and keyed to the shaft 22. Adjustment of the screws rotates the arm 19 relative to the shaft 22 and hence rotates the shaft 16 and the cam 14.
Patent GB-1537558-A (GB)
Title: Discharge door control assembly
IPC: B61D7/26
Filed: 1976-09-08
Abstract: 1537558 Valves MORRISON-KNUDSEN CO Inc 8 Sept 1976 37203/76 Heading F2V A discharge control assembly for a hopper comprises parallel support plates 12, each including upper 14 and lower 16 portions, a closure plate 24 supported by the lower portions 16 for rotation about an axis 22 between open and closed positions, the two portions of one support plate 12 being connected by a hinge 50 and the two portions of the other support plate 12 being joined by a camming arrangement 54 operable to increase the distance between the closure plate 24 and the edges of its seat to ensure easy opening. The cam 56 is pivotally held by pin 62 on portion 16 and has an eccentric slot 58 in which rides a pin 60 fast with portion 14. The closure plate 24 is carried on stub shafts 32 one of which carries a plate 34 heaving sleeves 36 in which a rod can be inserted to rotate the closure 24. The plate 34 has slots 38 in which a pivoted latch 44 can engage to hold the closure in one or more positions. An adjustable friction brake 46 is provided. The closure plate 24 carries curved plates 26 and extended plates 28 to act as a discharge chute.
Patent GB-332506-A (GB)
Title: Improvements in the manufacture of electric incandescent lamps or the like apparatus with sealed glass envelopes
IPC: H01J9/34
Filed: 1929-12-04
Abstract: 332,506. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. fiir Elektrische Gl³hlampen). July 1, 1929, [Convention date]. Making lamps.-The parts of an electric incandescent lamp &c. covered by the cap are roughened during the process of sealing to secure the adhesion of the cap. The roughening may be effected by jets of acid fumes, by blowing powdered glass against the softened glass of the lamp, or by introducing etching gases into some of the heating flames. Suitable gases are phosphorous hydride, boron hydride and boric acid esters.
Patent GB-445314-A (GB)
Title: Improvements in differential gear mechanism
IPC: F16H48/08
Filed: 1934-12-31
Abstract: 445,314. Differential gearing. MANNING, MAXWELL, & MOORE, Inc., 405, Lexington Avenue, New York, U.S.A. Dec. 31, 1934, No. 37400. Convention date, Jan. 3. [Class 80 (ii)] A differential mechanism comprises a pair of bevel planetary pinions supported on shafts pivotally mounted in a housing on axes at right angles to the axis of the sun gears with which the pinions mesh. In the form shown in Fig. 1, spiral bevel wheels are employed, and in that shown in Fig. 5, straight-toothed wheels. In both forms, the spindles 16 of the planet wheels 17, 17a are pivoted on crossshafts 14 forming part of a carriage 42 transversely slidable in slots 23 in cross-members 5 connecting the two parts 2, 6 of the driving housing carrying the crown gear 3. Interposed between the planets 17, 17a and their pivoted supports 15, 15a are fibre washers 13. In the form shown in Fig. 1, if one driven road wheel slips the gearing locks and drives solid owing to internal friction between the spiral teeth, while in Fig. 5, the locking effect is attained by permitting the supports 15a to slide a little axially on the shafts 14. In a further form, not shown, the planet shafts 16 are pivoted directly to the driving housing 2, 6.
Patent GB-982045-A (GB)
Title: Improvements in or relating to optical position indicators
Inventor: FERGUSON HAROLD MATTHEW
IPC: B64F1/20
Filed: 1962-10-02
Abstract: 982,045. Visual landing aids for aircraft. GENERAL ELECTRIC CO. Ltd. Oct. 1, 1963 [Oct. 2, 1962], No. 37429/62. Addition to 848,583. Heading G4F. The optical indicating system described in the parent Specification is modified by the inclusion of further optical projectors to give an indication of whether the aircraft is to one side or other of the approach path. In a first embodiment, Fig. 1, two projectors 1,2 of the type referred to in the parent Specification are spaced along the runway, and two further projectors 3, 4 are placed one either side of the runway each producing a beam having a red part R3, R4 and a white part W3, W4, the arrangement being such the central plane of the angle of perceptible confusion is vertical. In an alternative arrangement, Fig. 5, the projectors are arranged in two pairs 11, 12 and 13, 14 one pair on each side of the runway. Each projector is arranged to give a beam having a white quadrant and the remaining portion red. The white sections in either embodiment are so arranged that an aircraft on the correct path sees all four lights as pinkish-white, and such that movement off the correct path causes at least one of the lights to appear redder and one whiter.
Patent GB-523068-A (GB)
Title: Improvements in or relating to signal receivers for carrier-telephony systems
IPC: H04J1/14
Filed: 1938-12-23
Abstract: 523,068. Carrier telephone systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 23, 1938, No. 37463. Convention date, Dec. 27, 1937. Drawings to Specification. [Class 40 (iv)] In a multiplex carrier telephone system in which signals, e.g. dialled impulses or calling signals, are transmitted by means of the carrier wave, which is suppressed during speech, or by a current of a frequency in the range of the speech side-band, an amplitude limiter is included in the input circuit of the signal receiver. As shown, the amplitude limiter is a valve with a grid condenser and leak designed to keep the output current substantially constant for different input amplitudes. The arrangement prevents false actuation of the receiver by speech since a proportion of the limited anode current of the valve is in that case necessarily of frequencies unsuitable for actuating the signal apparatus. The invention is described with reference to a system identical with that described in Specification 504,711.
Patent GB-826688-A (GB)
Title: Improvements in or relating to translucent panels
IPC: E04C2/54
Filed: 1956-12-07
Abstract: 826,688. Translucent panels; windows; ceilings; panels. ELLIS, T. W. and BONE, R. H. Dec. 6, 1957 [Dec. 7, 1956], No. 37491/56. Classes 20(3), 20(4) and 87(1) A translucent panel comprises a rectangular sheet of polystyrene &c. having at least one face ribbed or fluted to diffuse light passing through it, and having interlocking flanges 15, 16 on two opposite edges. The sheet may be corrugated as at 18, Fig. 3, or may have ribs 26 on only one face as in Fig. 4. The panel may be flat, Figs. 2, 3, or slightly curved in the direction transverse to the flanges, Fig. 4. In a false ceiling, the panels are supported by a framework comprising peripheral angle-section members 13 and intermediate T-section members 14 spaced apart by further T-section members, Fig. 1 (not shown).
Patent GB-1136094-A (GB)
Title: Improvements in or relating to control systems
Inventor: WHITEHOUSE JOSEPH COLIN
IPC: G05D3/14
Filed: 1965-09-02
Abstract: 1,136,094. Dashpots. RANK ORGANISATION Ltd. 12 Oct., 1966 [2 Sept., 1965], No. 37524/65. Heading F2S. [Also in Division G3] Mechanism employing driving and driven members which are subject to backlash is associated with means for modifying a demand signal, which determines the speed of the driving member, for a predetermined period so that the relative velocity of the members is small at the instant of engagement, the modified signal being restored to the demand value after the predetermined interval. In one embodiment, the demand signal is a mechanical signal and the modifying means comprise an input shaft connected to an output shaft through an hydraulic dashpot, together with means for the frictional restraint of movement of the output shaft which is spaced apart from the input shaft by a backlash distance greater than that in the mechanism. In another arrangement, two mechanical filters are coupled in series, each comprising an oil dashpot 100, 100<SP>1</SP>, and spring 101, 101<SP>1</SP>. Each dashpot has a plunger 103, 103<SP>1 </SP>bored at 104, 104<SP>1</SP> and the shafts 105, 105<SP>1</SP>, protrude into spaces 108, 108<SP>1</SP>. The maximum plunger travel is just greater than the backlash of the load driven from the shaft 109 which has a friction loading 110. The full effect of a sudden change of a demand signal applied to the shaft 105 will not be transmitted to the shaft 109 until the movement of the shafts 105, 105<SP>1</SP>, towards the ends 108, 108<SP>1</SP>, has taken place.
Patent GB-1025930-A (GB)
Title: Improvements in or relating to railway control arrangements
Inventor: HENNING HEINZ
IPC: B61L3/00
Filed: 1962-10-04
Abstract: 1,025,930. Automatic train control. WERK FUR SIGNALUND SICHERUNGSTECHNIK BERLIN VEB. Oct. 4, 1962, No. 37563/62. Heading B7N. In an A.T.C. system in which a relay BM is maintained energized to prevent emergency application of the brakes by a circuit which includes a contact gw of a relay which is energized when the train actual speed exceeds the desired speed and a contact hbr2 of an auxiliary braking relay HBR which is energized via contacts I or W 1  of storage relays picked up in response to speed signals received from the track, means are provided when the A.T.C. system breaks down and opens contact I or W 1  for allowing the train to proceed after it has come to a halt by operation of an order switch BT. When the train stops contacts V 01  and V 02  of a train movement relay close so that a relay B may be energized on operation of the order switch BT and relay HBR is energized via contacts V 02  and P 1 . On pick up of relay B a relay S is energized via contact b 3  and operates its hold contact S 3 . When the train moves off contacts V 01  and V 02  open releasing relay B but relay HBR is maintained energized via contact S 2  of relay S so that application of the emergency brake is prevented. The train can accelerate up to a maximum speed controlled by contact gw. Should the train come to a halt a further operation of the order switch is necessary before it can move off again.
Patent GB-1517301-A (GB)
Title: Apparatus for forming rims on containers
IPC: B29C57/12
Filed: 1975-09-15
Abstract: 1517301 Beading rims of containers BELLAPLAST MASCHINENBAU GmbH 15 Sept 1975 [16 Sept 1974] 37797/75 Heading B5A Projecting flanges 38 on containers are rolled over to form beaded rims in apparatus which comprises a heater (not shown) for heating a stack of rested containers (seen end-on as C, Fig. 6) to render the flanges deformable, a rotatably-mounted roller 88 having at least one rim-rolling helical groove to receive the heated flanges, means (not shown) for rotating the roller means, and a belt 57 arranged to be driven in a path part (57A) of which extends around the stack of containers on the side opposite to the grooved roller to urge the containers into the grooves, to rotate the containers and move them forward. Preferably, the axis of the grooved roller is mounted skew to the axis of the stack (as shown in Fig. 4), the azimuthal angle between the axes being equal to the angle of the helix, so that the portions of the groove engaging the flanges (dotted in Fig. 4) extend substantially perpendicularly to the axis of the stack. The axes of the rollers 78 around which the belt 57 passes are also preferably skew to the axis of the stack the azimuthal angle in this case being half the angle of the helix, so that the part 57A of the belt in contact with the containers travels in a helical path.
Patent GB-1463437-A (GB)
IPC: F17C3/02
Filed: 1975-09-16
Abstract: 1463437 Cryogenic tank insulation MOTHERWELL BRIDGE ENG Ltd 16 Sept 1975 37964/75 Addition to 1406910 Heading F4P In a tank as disclosed in the Specification 1,406,910, the insulating blanket portions 6 are retained by elongate members 3 secured between adjacent vertically-spaced members 2 and provided with spikes 4. As shown, the members 3 are secured to members 2 by pins engaging in coincident apertures and retained by circlips (not shown). Alternatively the securing means may comprise a bolt co-operating with a captive nut clamped to a member 2. The elongate members 3 may be glued to wall 1, the spikes then extending away from the wall.
Patent GB-1056893-A (GB)
Title: Rotary multiposition switch
IPC: H01H19/58
Filed: 1964-09-18
Abstract: 1,056,893. Mechanical switches, without quick action. STANDARD TELEPHONES & CABLES Ltd. Sept. 18, 1964 [Sept. 21, 1963], No. 38189/64. Heading H2B. In a rotary multiposition switch having at least one stator plate with stator contacts on both sides and rotatable contacts mounted on a common rotary shaft, the rotatable contacts 6 are C- shaped springs slidably inserted in lengthwise grooves 5 in shaft 4, insulated from each other, and at least one of contacts 6 connects contacts on either side of each stator plate. In the embodiments described the stator contacts are formed by printed circuit technique.
Patent GB-1363824-A (GB)
Title: Electrical cables
IPC: H01R35/02
Filed: 1972-08-17
Abstract: 1363824 Making electrical connectors AMP Inc 17 Aug 1972 38311/72 Heading B3A [Also in Division H2] An electric cable is formed from a single strip of sheet metal (e.g. aluminium) and includes a tube formed from a multiplicity of axial, stamped out strands 4, twisted longitudinally, and integral with a terminal 8 formed at each end (Fig. 3). The cable is insulated by heat shrinking tubing or adhesed tubing, or preferably by repeated dipping in (e.g. P.V.C.) and then heating to cure such that an insulating matrix 10 (Fig. 4) is formed which penetrates and/or embeds the strands 4, and also seals folded over portion 6<SP>1</SP> of the cable. In a further embodiment, Fig. 9, the cable 14 has conventional terminal 8<SP>11</SP> and a terminal at the left formed to conform to a conventional battery post 26 on battery 28. The end of the cable 16 is folded and riveted at 18 and the portions provide a conical receptacle 20 and ears 22 for receiving locking nut and bolt 18, 24 respectively.