baber/WOPTO huggingface dataset:
Patent GB-1246457-A (GB)
Title: Cassette-type magnetic tape recording and reproducing apparatus
IPC: G11B15/10
Filed: 1968-12-06
Abstract: 1,246,457. Cassette players. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 6 Dec., 1968 [14 March, 1968 (6)], No. 58198/68. Heading G5R. Magnetic tape cassette apparatus includes a rotary control knob movable to switch the apparatus from inoperative to recording or playback, fast wind or rewind modes, and having a cam plate coupled by a pivotal lever to a movable plate carrying a pinch roller-and heads. The cam 40 has a first pin 41 engaging a lever 35 coupled to a control slide 19 having a pin 33 controlling the position of a roller 30, a joggled edge 22 engageable with a lug 23 on a tensioning roller arm 14, and a cam surface 27 engageable with a lug 25 on the arm of a rewind roller. The cam 40 has a detent mechanism 43-45 and carries a second pin 50 engaging a pivoted arm 51 coupled by a spring 55 to a plate 47 carrying the pinch roller 48, record/playback and erase heads 49. Rotation of the knob in either direction energizes a motor 9 belt-driving a capstan flywheel 8 coupled via pulley 12 and belt 18 to the tension and-rewind rollers 15, 17. Record/playback (Fig. 5, not shown).-The knob is rotated one detent position in direction A so that slide 19 is shifted to the left thereby moving roller 15 upwards to tension the belt 18, and rocking roller 30 leftwards to press the belt against a pulley 6 frictionally coupled to the take up reel carrier 5. Fast forward (Fig. 6, not shown).-The knob is rotated a further detent position in direction A so as to retract the heads and pinch roller but leave slide 19 in the same position so that only the take up reel carrier 5 is driven. Rewind (Fig. 7, not shown).-The knob is rotated one detent position from the rest position in the opposite direction so as not to operate the head-carrying slide but to shift the control slide 19 to the right, thereby engaging the rewind roller 17 with the supply reel carrier 4 without moving rollers 15 and 30. Preventing double recording (Figs. 8-12, not shown).-A recordable cassette has a solid rear wall engageable with a pivoted arm (67) so as to release the arm from a hole in a recording lever (73). Depression of the lever (73) rotates a bell crank (80) to move one arm (82) into the path of a pin (87) on the cam so that when the knob is rotated to the record/playback position the bellcrank (80) is rotated further to operate a record switch (89) and is locked in that position (not detailed). Loading (Figs. 1, 16, not shown).-The cassette is held in place on locating pins (134) by pads (137) in a hinged cover (136). Ejecting (Figs. 13-15, not shown).-A lever (103) pivoted counterclockwise to lift one end of a bell crank (106) against the underside of the cassette. The bell crank (106) has a notch (126) engageable by the head-carrying plate 47 when in the record/playback position thereby preventing inadvertent ejection.
Patent GB-1246309-A (GB)
Title: A compact component device for the visible display of letters, digits, symbols and figures
Inventor: PANERAI MARIA
IPC: G09F9/305
Filed: 1968-12-09
Abstract: 1,246,309. Electroluminescence. M. PANERAI, and G. PANERAI. 9 Dec., 1968 [7 Dec., 1967; 28 Feb., 1968; 6 March, 1968; 11 July, 1968; 16 Oct., 1968], No. 58488/68. Heading C4S. [Also in Division G5] A display device comprises a plurality of light transmitting rods 6 extending through a pack of light-transmitting plates 1, an electroluminescent light source 17 supplying light via the plates and means 7 for directing said light along a selection of the rods to provide a visible character. The light is directed by notches in the rods and each plate provides a separate character. The rods may be of circular, triangular, quadrangular or polygonal crosssection and the light may be directed by a length of rod of decreased cross-section obtained by hot stretching. Alternatively, each rod can comprise a plurality of coaxial lengths each having one end bent towards a light source (Fig. 20, not shown).
Patent GB-1249662-A (GB)
Title: Side delivery rake
IPC: A01D78/00
Filed: 1968-12-11
Abstract: 1,249,662. Hay rake. INTERNATIONAL HARVESTER CO. 11 Dec., 1968 [18 Nov., 1968. No. 58810/68. Heading A1F. A side delivery rake 2 comprises a main frame member 3 mounting sub-frame structures 26, 27, and rake wheels 9, a tow-bar 52 being pivoted to the main frame 3 and a rear frame structure 27 including arch members 28 extending over the rake wheels 9. A front frame 26 includes a continuous arcuate portion 50 concentric with the pivoting axis of the towbar 52, and means is provided for securing the tow-bar 52 to this arcuate portion 50 in a range of angular positions, the securing means comprising a spring loaded bolt 70 engagable in openings in the portion 50. To raise the wheels 9 for transport, supporting cranks 6 turn upwards in bearings 4, acted on by springs 12 linked to a slidable tube 15 which may be moved along the frame member 3 by means of a screw crank 21.
Patent GB-1244747-A (GB)
Title: Torsional vibration damping device for clutches
Inventor: FELLER OTTO
IPC: F16D3/68
Filed: 1968-11-25
Abstract: 1,244,747. Universal Joints. GOETZEWERKE FRIEDRICH GOETZE A.G. 25 Nov., 1968 [24 Nov., 1967], No. 55861/68. Heading F2U. In a resilient coupling for connecting a clutch plate 1 to a hub 2, wherein radially prestressed rubber blocks 4 are bonded between metal blocks 5 riveted to the plate 1 and arms 3 fast with the hub 2, the periphery of the blocks 5 facing the hub have an arcuate section. The arcuate section preferably forms part of a circle. Recesses (8) may be provided in the rubber blocks 4 to increase circumferential resilience.
Patent GB-1390910-A (GB)
Title: Fishing equipment
IPC: A01K91/18
Filed: 1971-12-17
Abstract: 1390910 Fishing equipment WHITE FISH AUTHORITY 1 Dec 1972 [17 Dec 1971] 58883/71 Heading A1A Fishing equipment based on a length of main line 1 with attached snoods 2 and hooks 5 is characterised by the addition of fixed stops 10 equispaced between the snood attachment points 3 and also helical plastics sliders 8 which when moved along the line with a tool lock the hooks close to the line and thus simplifies the winding onto and off a drum. Sliding movement in the opposite direction releases the hooks into the working position. The tool 11 comprises a plastics body 12 carrying a number of metallic fingers, of which 14, 15, 16 are shaped as in Fig. 3c and the other six, 18, have no turnover at the free ends. In use the tool is manipulated so that the line moves through the cut-out 13a into the orifice defined by the ends of the nine fingers. The orifice diameter is larger than that of the line but smaller than the outside of the slider so that movement of the tool along the line will move the position of the slider either to lock the hook against the line or to free it, according to the direction of movement. When the end of the line picked up first by the fishing boat is such as to require the locking movement of the tool to be in the same direction as the unlocking movement then it is necessary for each slider to be pushed over the stop 10 before it engages the hook. To provide the extra force needed the stiffness of the fingers 14, 15, 16 is increased by moving the ring part 12a of the tool 11 away from its normal position close to the flange of the body 12. The stops 10 may be replaced by knots and in this case the reversing procedure given above is not possible and consequently a non-adjustable tool may be used. To enable the equipment to be used readily with a fishing line consisting of several separate lengths, each on its own drum, then each is provided with a knot at the end nearest the centre of the drum and a standard hook with spring catch at the other. As the end of the first drum of line is approached, the hook is sprung over the moving line and slides to the knotted end thus providing continuous laying of line.
Patent GB-1277884-A (GB)
Title: Improvements in or relating to gas-cushion vehicles
Inventor: TATTERSALL EDWARD GUNSTON
IPC: B60V1/16
Filed: 1968-05-17
Abstract: 1277884 Gas cushion vehicles HOVERMARINE TRANSPORT Ltd 13 May 1969 [17 May 1968] 58890/71 Divided out of 1277883 Heading B7K The subject matter is that described in the parent Specification by the claims are concerned with a gas cushion vehicle in which the upper wall part has two separate compartments 34, 13 separated by a flexible member 10, air flowing through a valve in the member 10 into the second compartment 34 from the first compartment, 13, and the second compartment 34 is of smaller cross-sectional area than the first 13, taken in a vertical plane containing the longitudinal axis of the vehicle.
Patent GB-1337129-A (GB)
Title: Prevention of silica pore obstruction in crystalline alumino silicates
IPC: B01J29/70
Filed: 1970-12-15
Abstract: 1337129 Reducing pore obstruction in zeolites MOBIL OIL CORP 15 Dec 1970 [18 Dec 1969] 59498/70 Heading C1A Crystalline aluminosilicate zeolites having a SiO 2 /Al 2 O 3  mole ratio > 6 and free of pore obstruction by SiO 2  are prepared by crystallizing the zeolite from a reaction mixture containing a soln. of an alkali metal or NH 4  salt (other than aluminate or silicate) present in an amount surplus to that required to form the zeolite. The salt may be NaCl or Na 2 SO 4 . The salt may be introduced into the reaction mixture prior to gel formation via one of the forming solns., or into the mother liquor i.p.o. cogelled SiO 2 -Al 2 O 3  mixture prior to crystallization.
Patent GB-1339739-A (GB)
Title: Brushless rotary electric machine
IPC: H02P9/36
Filed: 1970-12-18
Abstract: 1339739 A.C. machines having D.C. excitation MITSUBISHI DENKI KK 18 Dec 1970 [18 Dec 1969] 60278/70 Heading H2A In a brushless rotating-field rotary electric machine, e.g. alternator 1, providing an output voltage and including rotary controlled rectifiers e.g. thyristors 41, 51, 61, 71 connected between the output of a rotary A.C. exciter 3 and a rotatary field winding 2 of the machine, there are provided a rotary pulse generator 30 having two stationary field windings 38 on sharp-pointed magnetic field polepieces 33 and generating pulses controlling the firing of the rectifiers, and a phase converter 91 responsive to the machine output voltage for adjusting the phase relation between the rotation of the machine and the application of the firing pulses to cause the rectifiers to operate as rectifiers or as inverters in dependence on the machine output thereby to maintain the output voltage at a predetermined value. This is effected by connecting an output line from the generator to the phase converter via a voltage transformer 13, a rectifier 14, a comparison circuit 15 which compares the generator voltage E 6  with that E R  of a reference voltage source 11, and a pre-amplifier 16. Manual control of the generator is effected by operation of manual switch 10 to terminal b. The phase converter 91 is also supplied by a magneto generator 300 whose armature winding 302 provides a voltage whose phase is predetermined with respect to that of the exciter 3, and supplies the field windings 38. This provides a pulsed output in the exciter output windings 43, 53, 63, 73 which is applied via semi-conductor rectifiers 42, 52, 62, 72 to the thyristor gates. The exciter 3 has a fluid winding 8 connected to a source 81, and the rotatable portion 200 of the generator is connected to a prime mover 100. Reference has been directed by the Comptroller to Specification 966,024.
Patent GB-1374300-A (GB)
Title: Process for producing allylcarboxylates
IPC: B01J23/00
Filed: 1971-12-30
Abstract: 1374300 Carboxylation catalysts TOYO SODA MFG CO Ltd 30 Dec 1971 [30 Dec 1970] 60850/71 Heading B1E [Also in Division C2] Catalyst for use in the preparation of allyl carboxylate from propylene, molecular oxygen and carboxylic acid comprises carrier material upon which is supported (a) elemental palladium, (b) a compound of lead and (c) either an alkali metal carboxylate and/or an alkaline earth metal carboxylate or an alkali metal compound and/or an alkaline earth metal compound convertible to an alkali metal carboxylate and/or an alkaline earth metal carboxylate by reaction with the carboxylic acid reactant. The carrier material may comprise alumina, silica gel, silica-alumina, aluminium, phosphate, activated carbon, silicon carbide, pumice and/or diatomaceous earth. The elemental palladium may have been obtained by reducing palladium chloride, nitrate and/or acetate in situ on the carrier material. The compound of lead may be selected from oxides, chloride, nitrate and acetate of lead. The carboxylate, which may be derived from a carboxylic acid having from 1 to 4 carbon atoms, may be an acetate, propionate or butyrate of lithium, sodium, potassium or magnesium; alternatively, the catalyst may comprise, as the compound convertible to carboxylate, a carbonate or borate such as sodium carbonate, potassium carbonate or sodium borate. The catalyst may contain, per 100 parts by weight of carrier material, from 0.01 to 10.0 parts by weight of palladium, from 0.01 to 20.0 parts by weight of a compound of lead, calculated as elemental lead, and from 0.01 to 30.0 parts by weight of alkali metal/ alkaline earth metal carboxylate. As exemplified, catalyst is prepared from activated alumina, palladium chloride, lead nitrate and either potassium acetate (Example 1) or sodium tetraborate (Example 3) or from activated carbon, palladium chloride, lead (II) acetate and magnesium acetate (Example 2) by a procedure wherein the carrier material is composited with palladium chloride from aqueous hydrochloric acid (Examples 1 and 2) or ammonia (Example 3) solution, subjected to reduction with aqueous hydrazine hydrate/ caustic soda solution (Examples 1 and 2) or hydrogen (Example 3) and thereafter composited with the lead compound and with the alkali metal/alkaline earth metal compound.
Patent GB-2008013-A (GB)
Title: Improvements in wave soldering machines
IPC: B23K3/06
Filed: 1978-11-17
Abstract: A wave soldering machine having within its nozzle a hollow slotted cylinder 11, through the upper slot in which molten solder is discharged. The cylinder is rotatable in the nozzle to modify the form of the solder wave and permit the solder to be discharged from one or other side only or from both sides of the nozzle. <IMAGE>
Patent GB-2010993-A (GB)
Title: Improvements in Disc Brakes for Vehicles
IPC: F16D65/18
Filed: 1978-11-30
Abstract: In a disc brake for vehicles, a drag- taking assembly 5 mounted on a stationary part 4 on one side of a rotatable disc 1 includes axially spaced annular plates 6 and 7 which are disposed on opposite sides of disc 1 and are interconnected at their outer peripheral edges by coupling means 15. Friction pad assemblies 11, 12 for engagement with opposite faces of the disc 1 are guided for movement on guiding surfaces in the plates 6, 7 which take the drag on the pad assemblies 11, 12 when the brake is applied, and each pad assembly 11, 12 is applied to the disc by an hydraulic actuator 16, 18 mounted on a respective plate 6, 7. As shown, there are two pairs of opposed pad assemblies 11, 12 with respective actuators 16, 18. Coupling means may comprise bolts (10) in collar 15, or a cylindrical ring (20, Figures 3, 4). Radial withdrawal of pad assemblies may be provided for. <IMAGE>
Patent GB-2016592-A (GB)
Title: Fuel injection nozzle outlet orifice configurations
IPC: F02M61/16
Filed: 1978-12-04
Abstract: A fuel injection nozzle 1 has a fuel cavity 2 controlled by a non-return valve 3. The cavity 2 has a cylindrical insert 6 with spiral grooves 7 leading to an outlet bore 9 which has a divergent recess 12 extending towards the outlet end 11 thereby providing an outlet orifice of asymmetrical construction. Recess 12 may have any of the cross- sections shown in Fig. 2, or may be keyhole or tear-drop shaped in cross- section. Alternatively, a cylindrical recess is provided at the upstream end 10 of the outlet bore, from which two separate parallel-sided bores follow divergent paths to the outlet end 11 of the nozzle. <IMAGE>
Patent GB-2039240-A (GB)
Title: Hot rolling elongate material
IPC: B21B37/74
Filed: 1979-01-11
Abstract: In a method of and apparatus for rolling hot elongate metallic material successively through at least some of a plurality of stands of a tandem rolling mill, liquid coolant is applied to the material immediately after it leaves the last stand in which it is rolled. The gauge and/or temperature of the material may be measured downstream of where the liquid coolant is applied to the material.
Patent GB-2014914-A (GB)
Title: Goods delivery vehicles
IPC: B60K17/22
Filed: 1979-01-23
Abstract: A rigid goods vehicle has a conventional cab 11 secured to a rear open sided goods carrying structure 12 made up of a stressed floor 13 and stressed roof 14 joined by uprights 15. The driven rear wheels are coupled by a prop shaft 44 to a gearbox 42 of an engine 41 mounted in the cab. Coupling between prop shaft 44 and gearbox 42 is by way of a dropped drive 43 thereby permitting a low goods floor 45 despite the use of a standardised cab and gearbox 42 disposition. <IMAGE>
Patent GB-2016718-A (GB)
Title: Shutter Timing Circuit
IPC: G03B7/083
Filed: 1979-02-09
Abstract: The circuit comprises an operational amplifier 9, a capacitor 8 connected to the + input, a log diode 12 connected between the output 17 and the + input, and a switch 10 connected between the output 17 and the - input. Before exposure, capacitor 8 stores a logarithmically compressed shutter timing signal computed from brightness, film speed and aperture inputs. Upon shutter release, switch 10 opens and capacitor 8 integrates the amplifier output logarithmically expanded by the diode 12. Eventually the output 17 turns off a transistor 18 to de-energize a shutter closing electromagnet 19. The combination 8, 9 thus has the dual function of storage and integration. A second diode 23 provides temperature compensation. <IMAGE>
Patent GB-2014617-A (GB)
Title: Corrosion Resistant Coating Compositions
IPC: C23F11/04
Filed: 1979-02-20
Abstract: An aqueous acidic composition a (e.g. pH 2-5) containing dissolved hafnium and fluoride and preferably a vegatable tannin compound provides improved corrosion resistance to a metal surface e.g. Fe, Zn or Al. Preferred Hf sources are oxides, fluoride, nitrates and chlorides, added to give a concentration of at least 1 ppm Hf, preferably 4-100 ppm.
Patent GB-2016707-A (GB)
Title: Combustion Efficiency Apparatus
IPC: F23N5/24
Filed: 1979-02-23
Abstract: A combustion efficiency apparatus comprises a sensor 11 for measuring the concentration of a constituent gas, e.g. oxygen, of the exhaust gases, a sensor 10 adjacent the sensor 11 for measuring the temperature of the exhaust gases, and a electrical circuit for processing electrical signals from the sensors 10, 11 for providing a signal representative of the combustion efficiency  eta . The circuit processes the signals according to the algorithm:-   <IMAGE>  where  Lw=fractional loss due to uncondensed water vapor,  K4, K5 and K6 are constants  V=temperature signal-room temperature reference and  U=oxygen sensor signal-air reference. <IMAGE>
Patent GB-2042474-A (GB)
Title: Box
IPC: B65D5/00
Filed: 1979-02-27
Abstract: In a box of foldable board material, e.g. solid fibreboard, of the kind in which extensions 8 from the side walls 4 form narrow panels at the margins of the top of the box the extensions 8 are connected through crease lines (which enable a gusset to be formed) to end panels 12 which engage with the end walls 6 to hold the box assembled. The end walls 6 have angled slits 20 and the end panels 12 have extremities 16 each bounded by an upwardly facing edge which aligns with and bears against the upper edge of a slit 20 after the extremity 16 has been inserted through that slit. For greater strength the end panels 12 preferably have angled recesses 15 enabling a reduction in the length of the slits 20 which are preferably formed as a single cut without removal of waste. <IMAGE>
Patent GB-2016462-A (GB)
Title: Novel nitriles and use as perfume chemicals
IPC: C11B9/00
Filed: 1979-03-19
Abstract: Novel nitriles having the structural formula   <IMAGE> where R1 and R2 are hydrogen or alkyl of 1 to 6 carbon atoms and the total carbon number of R1 and R2 combined is 6 or less and the dotted lines represent carbon to carbon double or single bonds, no more than one double bond being present in the ring or in the nitrile containing side chain are useful in a variety of perfumery applications.
Patent GB-2015601-A (GB)
Title: Treatment of timber
IPC: B27K3/04
Filed: 1979-03-21
Abstract: Apparatus and method for treating materials such as timber by immersion in liquid comprising a closed vessel to contain the liquid in the lower part thereof, a rack to support the material being treated rotatable about a horizontal axis lying within the vessel, and a port for introducing material to be treated in to the upper part of the vessel. A preferred feature of the invention involves introducing one or more subsequent batches of material to be treated to the rack in the vessel while the first batch of material is still in the process of being treated in the vessel. <IMAGE>
Patent GB-2016346-A (GB)
Title: Spark erosion machines
IPC: B23H1/02
Filed: 1979-04-17
Abstract: Control apparatus for a spark erosion machine, which includes means for monitoring the conditions at the spark gap of the machine and means for controlling the mark- to-space ratio of pulses fed from a pulsed power supply to the gap in accordance with the monitored spark gap conditions, has means for reducing the mark-to-space ratio to a minimum (A, HOLD) whenever a tendency towards short circuit conditions is detected at the spark gap and thereafter, when said tendency has been removed, increasing the mark-to-space ratio in a sequence of successive steps (B), the maximum number of possible steps (C, E) for the next sequence of steps being reduced each time the mark-to- space ratio is reduced to the minimum (A, HOLD). <IMAGE>
Patent GB-2024971-A (GB)
Title: Device for Fastening Valve Housings
IPC: F16K27/00
Filed: 1979-04-26
Abstract: An arrangement is described for fastening a valve 14 to a rail 10 that is provided with at least one longitudinal bore 9 for carrying pressure medium to or from the valve 14. To enable the valve 14 to be secured to the rail 10 in a comparatively simple manner without the need for special tools, the valve 14 has a fastening projection 4 engaged by a U-shaped clip of the free ends 5 of which are engaged in a groove or slots 6 in the rail. The valve 14 has a valve opening constructed as a tubular extension 8 which is located in, and sealed to a transverse bore 7 in the rail 10, the transverse bore 7 being in connection with the longitudinally bore 9. The fastening projection 4 may be provided by a further valve opening which may also be connected to a further longitudinal bore in the rail. Preferably, there are two fastening projections engaged by respective clips which engage opposite sides of the rail. <IMAGE>
Patent GB-2058934-A (GB)
Title: Cryopumps
IPC: F04B37/08
Filed: 1979-09-17
Abstract: A cryopump includes a chamber having an opening at one end for the entry of gases. A heat radiation shield is provided adjacent the opening which shields a cryoplate assembly mounted within the chamber from at least a major portion of direct heat radiation. The cryoplate assembly includes at least one member 20 of wedge-shaped configuration which provides a large totally available surface areas through which gases can readily find their way and a large subtended surface area at the aperture of the chamber all, of which enables the cryopump to perform with large pumping capacity and fast pumping speeds. <IMAGE>