baber/WOPTO huggingface dataset:
Patent GB-952853-A (GB)
Title: Improvements in or relating to pulse generators
IPC: H03K5/07
Filed: 1960-06-01
Abstract: 952,853. Transistor pulse generating circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 1, 1960 [June 4, 1959], No. 19407/60. Headings H3A and H3T. A pulse generator comprises a first inductor, connected to an electronic switch, such that opening the switch produces a voltage pulse across the inductor, and a second inductor connected to the first via a rectifier which is rendered conductive by the voltage pulse to produce a narrower voltage pulse. A transistor 1 has a feedback path from the collector, inductor 2, capacitor 3 to the emitter to operate as a pulse generator. The repetition frequency may be either externally controlled by a synchronizing signal applied to terminal 4, or the circuit may be free running, the frequency then being determined by the feed-back part 2a of inductor 2, and the resistor 10. The pulse width is mainly dependent on the wiring capacitances of the inductor 2 and is reduced by shunting the inductor 2 by a further smaller inductor 6 in series with a rectifier 5. Thus when the transistor 1 cuts off, the voltage pulse produced across inductor 2 renders rectifier 5 conductive and hence the total inductance and the pulse width are reduced. The pulses may be used to synchronize an oscillator 15, having an output amplifier stage 17. The output from the secondary winding 7, coupled to inductor 6, and the output from the amplifier are fed into a push-pull modulator 18 coupled to peak detectors 19, 20 and the detected output at 21 is used to control the frequency of the oscillator 15. A sweeping oscillator 22 may be used to vary the oscillator frequency until it falls within the range of the synchronization control. In an alternative arrangement, Fig. 2 (not shown), the inductor 2 is coupled to the modulator, and frequency doubler stages are provided in the output of the oscillator.
Patent GB-1182644-A (GB)
Title: Device for Delivering a Continuous Stream of Fibrous Waste Material
Inventor: NIHOT CASPER
IPC: F23G5/44
Filed: 1967-04-27
Abstract: 1,182,644. Hopper. C. NIHOT, E. R. NIHOT and P. A. H. SAUERESSIG. 27 April, 1967, No. 19447/67. Heading B8S. In the feeding of fibrous waste material to a furnace, the material falls from hopper 13 on to rotating disc 9 driven by motor 6 and is discharged by plough 22 into suction nozzle 23 whence it is fed to the furnace. Disc 9 carries rib 19 secured thereto. The rate of discharge is controlled by sleeve 15 carried by hopper 13 and adjusted at 16. Alternately the material may be discharged from the surface of the disc 9 through a tube (not shown) by suction.
Patent GB-693700-A (GB)
Title: Diecasting apparatus with at least partly automatic drive
IPC: B22D17/22
Filed: 1950-08-03
Abstract: 693,700. Casting-machines. "HIVAG" HANDELS - UND INDUSTRIE - VERWALTUNGS-AKT.-GES. Aug. 3, 1950 [Sept. 13, 1949], No. 19470/50. Class 83 (i). [Also in Group XXXII] In a die-casting machine, the two parts of the mould and the mould and the injection nozzle are moved together and lodked in operative position by a common driving member acting on the parts through linkages containing resilient members. In one form, Fig. 1, the mould comprises a fixed part 5 and a part 24 moved into operative position against the part 5 by a toggle 25, 26 actuated from a cam 31. A compression chamber 1 is suspended by eyes 6 from a horizontal carrier 7 supported by parallel levers 8 pivoted at 9 and operated by a lever 10 from a cam 13 so as to lower it' into the melting bath 2 and then move it into position with its nozzle 3 adjacent the fixed mould part. The chamber is then locked in this position by a bolt 14 actuated by a lever 17 from a cam 20. The three cams 13, 20, and 31 are mounted on a common shaft 32 and each is coupled to the respective lever by a linkage which includes a resilient member such as the coil springs 12, 19, 30. In a modification, Fig. 2, a toggle 25, 26 moves the mould parts together and a second toggle 35, 36 moves the mould carrier so that the mould part 5 contacts the nozzle 3. Both toggles are actuated from a common shaft through cams and resilient links. The resilient coupling may incorporate a torsion bar (see Group XXXII).
Patent GB-785923-A (GB)
Title: Means for mounting a liquid fuel injection pump on an internal combustion engine
Inventor: NICOLLS WILFRID EDWARD WALTER
IPC: F02M39/02
Filed: 1955-07-07
Abstract: 785,923. Mounting fuel injection pumps. C.A.V., Ltd. July 2, 1956 [July 7, 1955], No. 19641/55. Class 7(3) A hollow bracket a, for mounting a fuel injection pump h on an engine, contains a gear wheel e adapted for spline connection with the driving spindle g of the pump and meshing with a gear wheel d which is adapted to engage, through an aperture in the rear wall of the bracket, a driving gear wheel c in the engine. The bracket is secured to the engine casing over an aperture exposing the gear wheel c, which may be on the engine camshaft and the pump h has a spigot j engaging in an aperture in the side of the bracket when fixed to the bracket by bolts i.
Patent GB-440961-A (GB)
Title: Improvements in the method of and in reinforced concrete slabs for insulating water-proof floors and flat roofs
IPC: E04D11/00
Filed: 1934-07-05
Abstract: 440,961. Roofs ; floors; slabs. BATES, R. H., 30, Ballantrae Road, Mossley Hill, Liverpool, and COOPER, W. A., 36, Cambridge Avenue, Great Crosby, near Liverpool. July 5, 1934, No. 19756. [Classes 20 (iv), 87 (i), and 107] A flat roof or floor A is provided with a superposed insulating layer in the form of a number of concrete or reinforced-concrete slabs D, each of which is bevelled around its upper periphery and has at each corner a depending supporting foot E extending below the underside of the slab by an amount at least equal to twice the thickness of the slab, the outer faces of the feet being shaped to provide vertical grouting grooves 3. The slabs may be provided with additional supporting feet E at the centres of the longer sides, as shown in Fig. 8. The slabs are placed side by side and end to end so that the grooves 3 formed in the abutting feet E of adjacent slabs provide vertical cavities for the reception of grouting, and the bevelled peripheries of adjacent slabs form continuous longitudinal and transverse V-shaped grooves which also receive grouting. The marginal slabs of the roof or floor are provided with continuous depending flanges along one side or end, or, in the case of a corner slab, along one side and one end, in order to provide an enclosed air space between the slabs and the surface of the structure A. The roof or floor A is provided with an asphalt covering C, which may be provided in two layers, as shown in Fig. 1. The surfaces of the slabs may have cast-iron gratings moulded therein.
Patent GB-1465827-A (GB)
Title: Internal combustion engine having auxiliary combustion chambers
IPC: F02B19/10
Filed: 1974-05-06
Abstract: 1465827 Main and auxiliary intake valve timing sequence NISSAN MOTOR CO Ltd 6 May 1974 [8 May 1973 (3)] 19767/74 Heading F1B A torch-ignition, reciprocating piston, fourstroke I.C. engine comprises a main intake valve controlling intake into a main combustion chamber and an auxiliary intake valve controlling intake into an auxiliary combustion chamber, the amount by which the auxiliary intake valve is open being always less then the amount by which the main intake is open and the auxiliary intake valve being open for a shorter period than the main intake valve. Pre-combustion chamber 18 is fed with rich mixture from auxiliary carburetter 32 the quantity of mixture admitted being controlled by valve 36. Main combustion chamber 12 is fed with lean mixture from main carburetter 24, the quantity of mixture admitted being controlled by main intake valve 28. The valve timing diagram, Fig. 4, shows the movement of the main valve, line A, which has a lift of 10mm, starts to open 12 degrees before T.D.C. and is fully closed 48 degrees after B.D.C. i.e. is open for 240 degrees of crank-shaft rotation. The auxiliary valve has a lift of 3mm, starts to open 2 degrees before B.D.C. and is fully closed 18 degrees after B.D.C. i.e. is open for 200 degrees of crank-shaft rotation. The auxiliary valve lift may be 2 to 5mm. and the period for which it is open does not exceed 60% of the period of which the main intake valve is open.
Patent GB-626953-A (GB)
Title: Improvements in or relating to gill drawing frames
IPC: D01H5/10
Filed: 1946-07-02
Abstract: 626,953. Gill boxes. SCARANI, R. July 2, 1946, No. 19782. Convention date, Jan. 22, 1943, [Class 120 (i)] In a gill box in which the fallers have a slow working speed and a quick return the working feed is imparted by a set of toothed wheels 4, Fig. 1, and the return movement is imparted by a set of toothed wheels 8 having a higher circumferential speed, the entry of the fallers to, and their discharge from the working path being effected by the pressure of the succeeding fallers in co-operation with inclined guides which facilitate the change of direction of the fallers. The fallers 1 are fed along a horizontal slot in the frame and their discharge through an inclined guide 7 is controlled by a braked toothed wheel 5. Each faller is provided with spacers 3 which protect the needles during the descent and a projection 1 b which co-operates with an arced guide 9, as shown in Fig. 1, to out-turn the fallers, complete rotation being effected by a stop 10. The fallers are returned to the working path through an inclined guide 11 being accurately located by a spring-pressed finger 12. A cleaner 15 having steel points cleans the needles and a cleaner 16 having bristles cleans the member 15. In a modification, Fig. 4, to provide a longer working path, the toothed wheel 8 is replaced by two similar toothed wheels 18, 18<SP>1</SP>.
Patent GB-255649-A (GB)
Title: A front extension for cycle mudguard
IPC: B62J15/00
Filed: 1925-08-06
Abstract: 255,649. Neville, T. Aug. 6, 1925. Mud-guards.-A front extension for the mudguard of a bicycle comprises a member a tapering forwardly from a width corresponding to the width of the forks, almost to a point. The rear and wider end of the extension is secured by a screw d to a wooden plug b forced into the lower end of the steering tube and bored to receive a fixed nut c. The extension may be of inverted V- or channel-section or of the usual curved section.
Patent GB-639581-A (GB)
Title: Improvements in or relating to a method of making a refractory article and a productresulting therefrom
IPC: C04B35/16
Filed: 1947-07-24
Abstract: Refractory articles are made by mixing a non-acid aggregate with a minor amount of a mixture of magnesia and silica each of which is of at least 95 per cent purity and of a particle size below 50 microns with a substantial amount below 10 microns, the magnesia being sufficient at least to react with all the silica to form magnesium orthosilicate, the resultant mixture being shaped to the desired form and fired at a temperature as low as 1200 DEG  C. and not exceeding 1700 DEG  C.  A minor portion of water and a chemical bond, e.g. magnesium chloride or goulac, is also included.  The aggregate, which may be periclase, chromite, or forstenite constitutes at least 80 per cent of the mixture and the magnesia-silica bond forms 5-20 per cent. The ratio of magnesia to silica varies from 1.34 - 10 to 1.  The magnesia may be obtained by burning the magnesium hydroxide precipitated from sea water by calcined lime or dolomite or by calcination and grinding of natural materials of sufficient purity, e.g. bauxite or magnesite, and the silica is obtained by the oxidation of silicon vapour or by grinding high-purity natural material. Specifications 579,098, 395,820, 602,453, [Group III], and 602,454 are referred to.
Patent GB-238700-A (GB)
Title: Improvements in coin freed apparatus
IPC: G07F17/04
Filed: 1924-08-23
Abstract: 238,700. Avery, Ltd., W. & T., and Jacob, A. Aug. 23, 1924. Weighing-apparatus; exhibiting pictures and the like. - In coinfreed weighing or amusement apparatus which operates in conjunction with an indicator, the indicator 3, 4 is provided with a cover comprising a casing 6 having a panel 9 of glass treated so as to constitute a mirror and be substantially opaque when illuminated by a source of light disposed in front of the cover, but to be transparent to light from electric lamps 10 situated at the back of the cover. The circuit of the lamps is completed by the insertion of a coin to operate the apparatus. A second panel 11 preferably of tinted glass is placed behind the panel 9 to enhance its opacity.
Patent GB-1301102-A (GB)
Title: Improvements in bearings
Inventor: BROOKS ERNEST
IPC: F16C19/54
Filed: 1969-04-18
Abstract: 1301102 Bearings J BROOKS 9 April 1970 [18 April 1969] 19979/69 Heading F2A A roller bearing for the rotor of a gyroplane has an inner race 1 with a spherical-shaped portion 2, rollers 4, each of which has a concave periphery in engagement with said portion 2, and an outer race 3, which is located within a member 14 and is secured thereto by means of bolts and nuts 16, 17. A reduced portion 6 of a shaft 7 is mounted, by means of a pair of ball bearings 5 and a spacer 8, within the inner race 1 of the roller bearing. The shaft is also supported by means of a roller bearing 11 which is carried by a casing 10. The latter is attached to the member 14 by means of a rod 22 and a pivot 21. A rotor head 9 is mounted at one end of the shaft and a universal joint (not shown) is mounted at the other. In use the casing 10 is rockable by means of a manual control rod (not shown), the latter being connected to the casing 10 by means of a coupling 13, the sphericalshaped portion 2 of the inner race 1 allowing the shaft to be rocked so as to move the rotor head 9 and control the flight of the gyroplane. A grease nipple 20 is connected by a passage 19 to lubricate the rollers 4.
Patent GB-381929-A (GB)
Title: Improvements in and relating to apparatus for grinding material in a more or less viscous condition
IPC: B02C4/22
Filed: 1931-07-11
Abstract: 381,929. Disc mills ; roller-and-breast mills. SONSTHAGEN, A., 10, Broad Walk, Snaresbrook, London. July 11, 1931, No. 19994. [Class 59.] In mills in which a bar is pressed against a disc or roller, the material is supplied at high pressure to the point of grinding by a tapering duct one side of which is formed by the rotating body and the other by a fixed metal or other body inclined to the rotating body and forming part of or attached to the grinding bar, either body rotating whilst the other is stationary. As shown, an extension f forms a duct with the grinding disc G whereby a high pressure is created to force the material between the grinding bar B and disc. The exten. sion f may be removable in order to vary the inclination or height of the duct. Instead of removing the extension, a wedge piece may be affixed thereto in order to reduce the angle. The duct may be formed within the supply hopper or the duct may be a V-shaped receptacle closed at its ends and having one side constituted by the surface of the disc or other moving body. The grinding bar B may be of granite and is housed in a tapered channel b, Fig. 2 adjustment being carried out by screws c, e. The member f may be provided with webs to prevent circulation of the material in the duct. Where the moving body is in the form of a roller the inner surface of the extension f is curved. The grinding bar or bars may revolve on a stationary disc or roller, on the interior surface of a cylinder, or the inner surface of the wall of a pan or container. Co-pending application 381,153 is referred to.
Patent GB-1283154-A (GB)
Title: Electric windscreen wiper motors
Inventor: NEGUS PETER
IPC: B60S1/08
Filed: 1970-04-25
Abstract: 1283154 Motor casings; electric couplings GENERAL MOTORS Ltd 22 April 1971 [25 April 1970] 20010/70 Headings H2A and H2E In a windscreen wiper motor having reduction gearing enclosed by a gear-box 3 integral with the motor easing (2), the gear-box is closed by a detachable plastics cover 5 formed integral with one member 6 of a plug and socket connector by means of which the motor is connected to the external circuit. As shown, the member 6 comprises a rectangular housing -containing spadetype terminal pins such as 10 which are mounted on the cover 5 by splaying the ends 17 of bifurcated, lateral extensions 15. Rearward extensions 18 on the pins have tabs 19 crimped on to wires 20. At least one terminal pin has a spring arm 21 secured to the underside of the cover by the extension 15 and carrying a contact 22 which engages a rotary contact 23 or a gear member 4.
Patent GB-1498079-A (GB)
Title: Laying of carpets
IPC: A47G27/04
Filed: 1976-05-13
Abstract: 1498079 Carpets LUCKINGS CONTRACTS Ltd and J R HARRISON 13 May 1976 [13 May 1975] 20044/75 Heading A4S A carpet 15 is laid on a floor 18 around an access hatch 17 by cutting an aperture in the carpet having a shape, e.g. rectangular or circular, corresponding to that of a lip 16 of the hatch, and adhering a strip (10) to the lip and the laid carpet. The strip may be formed of several pieces but is preferably formed in one piece of injection-moulded plastics, e.g. polypropylene or P.V.C. The hatch lid may be covered by a piece of similar carpet. The top leg 11 of the strip may extend beyond the leg 12 to overlie the lip 16, Fig.3 (not shown), or the leg 12 could be fitted around the inside of the lip, or a further leg parallel with the leg 12 may provide with the leg 12 a narrow slot to receive the lip. The adhesive used is preferably rubber based.
Patent GB-482097-A (GB)
Title: Improvements in and relating to writing implement having interchangeable leads
IPC: B43K24/10
Filed: 1937-07-20
Abstract: 482,097. Pencil holders. FEND, K. July 20, 1937, No. 20053. Convention date, July 23, 1936. [Class 146 (iii)] In a pencil holder having interchangeable leads and comprising two slidably coupled casings, of which the rear or feed casing carries a pusher bar capable of being set to engage the lead carrier to be advanced and the forward or guide casing contains the lead carriers, the pusher bar 26, Fig. 1, is freely attached to the front end of the feed casing 18 in such a manner that, when the pencil is turned into an inclined or horizontal position. the forward end of the pusher bar moves under gravity to its lowest position and lies opposite the lead carrier 4 which is to be advanced, the setting of which is rendered visible bv a mark 39 provided diametrically opposite to it on the outside of the pencil casing 34. The lead carriers 4 are guided in spaces produced by a cross-shaped partition 3 in the guide casing 1 and are pressed rearward by springs 7 to an extent limited by a rim 9 on the partition 3. They are locked in advanced position by pins 6, projecting through slots 2 in the casing 1 and shaped slots 11, Fig. 2, in a rotatably mounted locking sleeve 10. As each carrier is advanced the pin (i carries the sleeve 10 first in one direction by engaging an edge 16 of the slot 11 and then in the reverse direction by means of an edge 13 so that it finally rests under a locking shoulder 14. The carrier is released by the partial or full advancement of any other carrier. Fixed to the casing 1 is a sleeve 17 and in this is slidably mounted the casing 18, which is engaged by a flanged collar 22a and pressed rearwardly by a spring 27. Between the flange 23 of the collar 22a and a headed pin 20 on the casing 18 is an annular space in which moves freely the head of the pusher bar 26. An octagonal collar 29 carrying an octagonal casing 30 is secured to the sleeve 17, and the rear casing 34 is held on the casing 18 between a fixed washer 33 and screwed pocket clip 36 and cap 37. The cap may be removed to gain access to the interior of the casing 18, used for storing leads. If the pencil is not positioned correctly so that the pusher bar does not come exactly opposite a lead carrier 4, it is nevertheless guided into position by the sharpened edge of the rim 9. In alternative constructions the pusher bar is cranked at its rear end, and freely mounted on the casing 18 by means of a ball-socket joint or a pivot pin.
Patent GB-610716-A (GB)
Title: Improvements in or relating to plate racks or the like
IPC: A47J47/16
Filed: 1945-08-03
Abstract: 610,716. Plate racks. ORME, EVANS, & CO., Ltd., and PUSEY, H. O. Aug. 3, 1945, No. 20059. [Class 28(ii)] [Also in Group XI] In a stowable plate rack for use on cooking and kitchen appliances, a carrier element adjustably mounted in or on supporting means so as to be movable from a stowed to an extended position carries a shelf or grid fitting snugly against or in it in the stowed position, and has means, controlled by movement of said grid or shelf to and from its operative position, for retaining said carrier in the extended position when the shelf is opened out. The invention is shown applied to a cooker as described in Specification, 610,717, [Group XI], in which the carrier 1 is formed of an inverted U of channel-shaped metal sliding in the hollow back corner members of said cooker. Disposed inside and pivoted to the legs of the carrier 1, and connected by a link 19, is a lever 21, and an arm carrying the shelf 10. Raising the carrier to clear the lever 21 of the tubular guide 4 and dropping the shelf 10 to the limit allowed by the heel 17 raises the lever 21 to the retaining position shown in Fig. 3.
Patent GB-1136875-A (GB)
Title: Isolation of l--‡-(3,4-dimethoxybenzyl)--‡-alanine methylester
IPC: A61K31/24
Filed: 1967-05-01
Abstract: 1,136,875. L - α - (3,4 - Dimethoxybenzyl)- α - alanine methyl ester. KNOLL A.G. CHEMISCHE FABRIKEN. 1 May, 1967 [5 May, 1966], No. 20087/67. Heading C2C. L - α - (3,4 - dimethoxybenzyl) - α - alanine methyl ester is prepared from the corresponding racemic mixture by reacting the racemate with dibenzoyl-L-tartaric acid to form the corresponding diasteresmeric salt pair, the reaction being effected in the presence of an inorganic acid, preferably HCl, in which the D-antimer of the salt pair is relatively much more soluble than the sparingly soluble L-antimer, separating the L-antimer salt, and subjecting it to mild acid hydrolysis.
Patent GB-280833-A (GB)
Title: Improvements in knives
IPC: B26B5/00
Filed: 1927-07-29
Abstract: 280,833. Perry, E. S. July 29, 1927. Pocket and like knives.-A knife has a detachable blade c fitting in a channel-shaped carrier a, a portion of the blade c fitting behind a transverse portion e of the carrier. The rear end of the blade c has a gap k in which one arm of a double arm pivoted catch h engages the rocking of which engages or disengages the blade from the carrier. The latter may be pivoted as shown or fixed to a handle q. The transverse part e of the carrier may be replaced by a pin. The pivoted catch h may have a finger nailengaging groove n and the blade c may have projections o, Fig. 4, to deflect cut material away from the carrier a.
Patent GB-1070119-A (GB)
Title: Improvements in and relating to wear rings for pistons of internal combustion engines
Inventor: WEBER WERNER
IPC: F16J9/22
Filed: 1966-05-06
Abstract: 1,070,119. Pistons. SULZER BROTHERS Ltd. May 6, 1966, No. 20162/66. Heading F2T. A wear ring 4 is secured in position in a piston ring groove 1 by a screw thread 8 on an annular projection 5 on the ring engaging a thread 9 in a groove 6 in the piston 2. In a modification, the thread (12, Fig. 2) is on the radially internal side of the projection (11). The wear ring may be split or formed in' two ormore parts. To facilitate insertion or removal of the wear ring the thread on it and in the piston may be interrupted by spaced recesses (30, Fig. 3) having a depth (t) greater than the depth of the thread and a length (m) longer than the length (n) of the thread between two recesses.