baber/WOPTO huggingface dataset:
Patent GB-1374165-A (GB)
Title: Processor interrupt system
IPC: G06F9/46
Filed: 1972-02-15
Abstract: 1374165 Digital data processing BUNKER RAMO CORP 15 Feb 1972 [3 June 1971] 7016/72 Heading G4A In a digital data processor system a delay occurs between the receipt of a service request and a subsequent program interrupt. As described a service request on lead 34 (Fig. 1) enables AND gate 38 to set interrupt inhibit timer 51 which results in AND gate 35 being enabled, after a predetermined delay, to supply a signal to control circuit 26. This results in a save signal on line 28 so that data in elements 10A- 10N of the processor is stored in memories 12A- 12N at an address determined by the priority of the program being effected. Information relating to service request is simultaneously stored in the processor memory and a scheduled store 32. When all service requests on lines 34 have been so processed a signal on line 40 interrogates schedule store 32 to determine the program having the highest priority level, this level being entered into register 20. If the new program has the highest priority execution of it is started. Otherwise the contents of the elements are read out from the memories 12A-12N and the resumption of the old program is executed. If a "program complete" signal is generated on line 63 during a service request signal, AND gate 37 is enabled to feed a signal to control circuit 26. This results in the save signal on line 28 being by-passed since the storage of data in the elements is not necessary. The delay determined by timer 51 may be of variable duration under manual or processor control.
Patent GB-880877-A (GB)
Title: High voltage apparatus
IPC: H02K57/00
Filed: 1958-03-05
Abstract: 880,877. Transformers. HIGH VOLTAGE ENGINEERING CORPORATION. March 5, 1958 [March 22, 1957], No. 7048/58. Classes 35 and 38 (2). A transformer or generator suitable for supplying a charged-particle accelerator comprises a central column of wound or other laminated magnetic material subdivided by insulation 15 into elements 14, a high-voltage terminal 7 and lining 13 on the inner surface of an earthed tank 9. Terminal 7 is supported on a cylinder 8 of equipotential rings, and energizes acceleration tube 10 formed by thin conductive mutually insulated discs 19 with potentials controlled e.g. by resistors and corona gaps. Tank 9 may be filled with a gas such as sulphur hexafluoride under pressure. The varying magnetic field in the core is produced either by primary winding 32 or rotating poles 37, Fig. 13, and terminal 7 is raised to a high voltage by e.m.f. induced in coil pairs 11, 12 connected in series between the lower earthed end of the core and terminal 7. Each coil pair is connected directly or through a resistor to the core section it surrounds and to a conductive case 17 in which it is enclosed. The gap 16 between terminal 7 and magnetic lining 13 is made broad and short, and the insulation 15 is thin. The latter may be subdivided, and of thin metallized plastic film, thickened at the edges (Figs. 7, 8, not shown), or it may be of gas between corrugated surfaces (Fig. 10, not shown), or between staggered rows of magnetic bars (Fig. 11, not shown). The core parts may be broader at the gaps (Fig. 12, not shown). The output may be rectified by at least one rectifier per coil mounted on insulating shaft 31. The column may be built of thin discs, Fig. 15, comprising central magnetic material 38 surrounded by a ring 39 metallized on the upper surface, and mounted on insulating layer 40 metallized on both surfaces, and including coil 43. The output of each disc may be rectified at 46. In a modification the high-voltage terminal may be in the centre of the column (Fig. 16, not shown). A three-phase modification is described and some winding turns may link with part only of the magnetic circuit (Figs. 18, 19, not shown). The D.C. output may be transmitted to distant points where it may supply acceleration tubes (Figs. 20, 22, not shown) or inverters. An inverter comprising six ignitrons and a threephase transformer including subdivided magnetic cores may be connected across each pair of electrodes of a number of pairs across which the D.C. voltage is divided (Fig. 22, not shown).
Patent GB-840710-A (GB)
Title: Improvements in photoelectric cells
IPC: H01L21/00
Filed: 1953-03-13
Abstract: A photo-sensitive layer comprises crystals of lead sulphide precipitated from a highly alkaline solution of a copper salt and a lead salt in a ratio of molar concentrations between 0.0008 and 0.010 by the addition of thiourea, preferably in the presence of an alkali sulphite.  Preferably the layer is formed on a glass plate which has been pre-seeded.  In one method of carrying out the invention a highly alkaline solution of copper nitrate is made up of 120 ml. of water, 120 ml. of a 0.00113 M copper nitrate solution and 100 ml. of sodium hydroxide solution containing 140 gms. of sodium hydroxide per litre.  To this alkaline copper solution is added 100 ml. of lead nitrate solution containing 100 gms. of lead nitrate per litre, and the combined solutions are brought to a temperature of 23 DEG  C.  A third aqueous solution containing 10 gms. of thiourea (preferably recrystallized) and 1 gm. of anhydrous sodium sulphite per 100 ml. is also brought to 23 DEG  C.  The lead alkali mixture is light blue and changes to amber when the thiourea is added; in time the colour becomes darker, becoming gold after 8 minutes, then brown and finally black.  Just before the solution is entirely black, which occurs some 30 seconds after a uniform brown and about 10-15 minutes after the mixing, the seeded glass plates are immersed with the seeded sides facing downwards.  The plates should remain in the solution for 10-100 minutes, preferably about 40-50 minutes, and are then rinsed with cool tap water.  Any loose crystals adhering to the sensitive surface are usually removed by careful swabbing with a camel hair brush, and the surface may be dried either with a blotter or by being allowed to stand in air.  The sensitive surface is then ready to receive electrical contacts for use as a photo-conductive coil and does not have to be placed in a vacuum. The temperature of the reaction should be between 5 DEG  and 40 DEG , the copper concentration in the precipitating bath should be between 5 x 10-5 and 5 x 10-4 molar, the lead concentration between 0.05 and 0.06 molar, and the sodium hydroxide between 0.55 and 0.75 molar. Specifications 840,708 and 840,709 are referred to.
Patent GB-723446-A (GB)
Title: Improvements in or relating to interference limiting circuits for television receivers
IPC: H04N5/21
Filed: 1952-03-19
Abstract: 723,446. Valve limiting circuits. GENERAL ELECTRIC CO., Ltd., BRABHAM, H, B. S., and RIBCHESTER, E. March 6, 1953 [March 19, 1952], No. 7109/52. Class 40 (6). [Also in Group XL (b)] In a television interference-limiting circuit in which the signal is fed over a first normally conducting rectifier to one electrode of the C.R.T., a second normally non-conducting rectifier is arranged to feed signals to a second electrode when the input exceeds a first predetermined level, and a third normally non- conducting rectifier is so biased that when the input signal exceeds a second predetermined level the voltage between the electrodes is maintained constant. The first and second levels are arranged to correspond to peak white and a voltage midway between peak white and black respectively. Signal from video valve 1 is fed over normally conducting diode 2 to the cathode of C.R.T. 3, diode 4 being held non- conducting. At peak white level, the bias from potentiometer 7 is such that diode 2 cuts off and diode 4 conducts so that any further increase in input results in a fall in the effective potential between the cathode and grid of the C.R.T. The bias on diode 11 from potentiometer 7 is set, at such a level that it conducts when the effective potential has fallen to a point mid-way between peak white and black, interference impulses thus appearing as spots of an intensity corresponding to this level.
Patent GB-1378098-A (GB)
Title: Wiper devices for vehicles
IPC: B60S1/60
Filed: 1973-02-14
Abstract: 1378098 Headlamp wiper device REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 14 Feb 1973 [28 March 1972] 7138/73 Heading A4F A wiper and washer device for vehicle headlamps comprises a wiper rod 3, 3a mounted on each of two carriages 7, 7a slidably mounted for reciprocating movement on parallel bars 8, 9 fixed at plates 10, 10a to the vehicle body. A motor driven shaft 17 acts, via rod 20, to reciprocatingly pivot a second rod 22 about a fixed axle 23, thereby moving carriages 7, 8, which may be of plastics, in directions F, F 1 . A projection 34 on carriage 7a depresses a rod 33 to activate a pump 30 so as to force cleaning fluid to jets 28, 28a. Angled steel wire 13 spring biases the rods 3, 3a to ensure that blades 2, 2a abut the headlamp lenses 1, 1a.
Patent GB-1419757-A (GB)
Title: Window regulator mechanism
IPC: E05F11/38
Filed: 1974-02-18
Abstract: 1419757 Vehicle window regulator FORD MOTOR CO Ltd 18 Feb 1974 [7 March 1973] 7237/74 Heading E2M A vehicle window regulating mechanism acts on a window panel to fully lower a ventilation section 15 before lowering a visibility section 16, and to fully raise the visibility section before raising the ventilation section, the mechanism comprising a mounting plate 17 secured to a body panel, a gear sector 19 rotatably mounted on a pivot shaft 21 journalled in the mounting plate, a first regulator arm 23 coupled to the mounting plate and to the visibility section, a second regulator arm 43 coupled to the first arm 23 and the ventilation section, drive means 52, 54 coupling the gear sector 19 to the second arm 43 and a cam follower 51 coupled to the second arm 43 and engageable with a cam slot 56 to control the sequence of movement of the first and second arms. In operation the gear sector 19 is rotated about pivot shaft 21 in a clockwise direction by a crank assembly 22 and results in a downward movement of the end of drive arm 52 connected to drive link 54. The ventilation section regulator arm 43 is thus swung downwardly about its pivotal connection to the regulator arm 23, the latter having no downward movement due to the cam follower 51 moving only the arcuate section 59 of the cam slot about its pivot centre 34. When the ventilation section 15 reaches its lowermost position, the follower 51 reaches the end of arcuate section 59 adjacent the vertical section 61. As the drive arm 52 continues to pull down on drive link 54, the fulcrum point for the arm 43 shifts from the pivot shaft 34 to roller 46. The follower 51 moves down the cam section 61 and the pivot shaft 34 moves downwardly carrying the arm 23 in a downward direction about pivot shaft 21. Stabilizer arms 35, 36 swing about the shaft 34 as the visibility section is driven downwardly by the arm 23. As the arm 23 swings it winds up a counter balance spring 25 which upon reversal of direction of the arm assists in raising the visibility section. From a lowered position, the sequence of movements is reversed upon the gear sector 19 being rotated in the opposite direction.
Patent GB-686470-A (GB)
Title: Improvements in or relating to a core delivery device for cop winding machines
Inventor: MUSCHAMP HAROLD LIONEL
IPC: B65H67/06
Filed: 1950-03-23
Abstract: 686,470. Cop-winding machines. MUSCHAMP, H. L. June 25. 1951 [March 23. 1950] No. 7257/50. Classes 120(ii) and 120(iii) A core delivery device for cop-winding machines comprises a slowly rotating magazine adapted to deliver one core in each revolution of the magazine to a core holder and means for disconnecting the drive to the magazine when a core is located in the holder. Cores 48 are fed singly from a container 16, in which they are placed large-end lowermost. through an aperture 13 in an outer stationary container 10 from which they fall into a shoot 14 and hence into a holder 49. The container 16, which is furnished with an aperture similar to aperture 13, is provided with an internal lip, to extract a single core from the mass, and is driven by a belt 29 through a pulley 25 and a pin engaging an arm on the spindle of the container 16. If, however, a core 48 is already positioned in the holder 49 and held between a plate 52 and a lever 47, a linkage 44, 35, 37 maintains the container-driving pin and arm apart, by pressing against a spring-biased cam 28 to that the container 16 will not rotate to deliver another core. In a modification, Fig. 5, the magazine comprises one container only 55, furnished with a spring-biased flap 62 for an aperture 61, the flap being raised by a pin 74 once each revolution. The container is driven by worm gearing 77, 65 and interengaging pins which are kept apart if a core 48 is already positioned between the stop 52 and a lever 82. This condition effects the separation of the driving pins by a linkage 73, 72, 70 which presses against a spring-biased cam 67 so that the container 55 is not rotated and a further core is not delivered until the holder 49 dons the core 48. In this modification, the cores 48 are fed to the holder 49 by a belt 79 in a shoot 80.
Patent GB-868018-A (GB)
Title: Improvements in or relating to means for the attenuation of ripple voltages in direct-current circuits
Inventor: HOOK ERIC JOHN
IPC: H04B15/00
Filed: 1959-03-03
Abstract: 868,018. Valve amplifying circuits. BAILEY METERS & CONTROLS Ltd. March 3, 1960 [March 3, 1959], No. 7329/59. Class 40(6) In an amplifier with direct-current negative feedback means are provided to reduce the feedback of mains ripple voltages generated in the amplifier. The feedback path comprises R9, R11, R13, the feedback being taken from resistor R13 which is adjustable. Mains ripple voltages are passed by condenser Cl to a transistor phase-reverser T1 which injects a balancing ripple voltage of opposite phase into the feedback network via adjustable resistor R15 and blocking condenser C2. The transistor is provided with base bias via resistor R7; alternatively a potentiometer network connected across the collector voltage supply may be used (Fig. 2, not shown). In a further modification, Fig. 3, which removes from the feedback network the effect of leakage current through the condenser C2, which is of the electrolytic type, a further electrolytic condenser, C13, of the reversible type is placed in series with condenser C2. The join is connected via a resistor to a potentiometer R33, R35 across the output terminals of the amplifier, so that there is no D.C. voltage across the condenser C13. A condenser C37 decouples the network for ripple voltages. The Provisional Specification also describes the use of a transformer instead of a transistor as the phase-reversal means.
Patent GB-1362267-A (GB)
Title: Adjustable tables and brackets for use therein
IPC: A47B27/18
Filed: 1972-02-21
Abstract: 1362267 Adjustable tables D NASH 21 Feb 1972 [19 March 1971] 7421/71 Heading A4H [Also in Division E2] A table top 4 is mounted on a cantilever arm 3 for angular adjustment by means of brackets 6, 7, at least one bracket 6 being provided with lugs 6a, 6b for securing to top 4, a journal 6g for receiving arm 3, and an arcuate slot 6i, the bracket having arcuate rows 6k, 61 (6n, 6f) of serrations on both faces thereof adjacent the slot. The serrations may be radial corrugations, as shown, or circular projections and depressions. The top 4 is held in a selected angular position by a releasable screw 8 mounted on upright extension (2a) and passing through the slot 6i and carrying a knob 9. On screw 8 behind knob 9 is a metal washer, and between the latter and the bracket is a deformable washer that co-operates with the bracket corrugations on tightening of knob 9. The interfaces of the washers may be serrated and/or the metal washer may have a peripheral rim surrounding the deformable washer. Similar washers may be provided on the other face of bracket 6; and this metal washer may be replaced by a fixed collar.
Patent GB-981484-A (GB)
Title: An improved fastener
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: F16B5/06
Filed: 1962-02-26
Abstract: 981,484. Spring clips, catch fastenings; suspended ceilings. F. T. PRODUCTS Ltd. Feb. 26, 1963 [Feb. 26, 1962; July 17,1962], Nos. 7478/62 and 27437/62. Headings E1V, E2A and E2B. A resilient U-shaped fastener formed from a single strip of material comprises a web 11, two substantially parallel limbs 12, 13 a slot 16, 18 in each limb and adjacent the slot in each limb a protuberance 20, 21 extending from the limb towards the slot in the opposite limb, the protuberances being approximately equidistant from the web, spaced laterally of the limbs and extending over a major part of the distance between the limbs so as to overlap. In the construction shown the protuberance 20 is formed by deforming the material between the slot 16 and a second parallel slot 17 and similarly the protuberance 21 is formed by deforming the material between the slot 18 and a parallel slot 19. The fastener is used for assembling together two flat apertured members, the apertures being aligned so that the protuberances can extend into them. For ease of engagement the limb 13 is formed with a lead-in 14. If desired however both limbs can have a lead-in. In the first Provisional Specification one of the limbs is formed with a cut-out spring arm and two cut-out aligned lugs all outwardly of the limb. Such a construction enables the clip to be used for attaching flanged and apertured ceiling boards to a plate-like horizontal carrier arranged with its major faces vertical the apertured flanges of two adjacent boards being passed between the limbs to be engaged by the protuberances and the fastener being secured to the carrier by the spring arm passing over the top edge with the lugs engaging the bottom edge of the carrier.
Patent GB-119202-A (GB)
Title: Improvements relating to the Heating of Steam-generators Provided in Regenerative or Recuperative Furnace Installations.
IPC: F22B1/18
Filed: 1918-05-04
Abstract: 119,202. Harvey, E. W., and Harvey Gas Furnace Co., E. W. May 4, 1918. Combined with regenerative or recuperative furnaces.-In a regenerative or recuperative furnace installation, part of the furnace flame is diverted into the fire-box or flues of a steamboiler. The regenerative furnace a has a separate flue e arranged between the usual gas inlet and outlet ports and leading to the fire-box i of a boiler g. A damper h is fitted in the flue. The boiler may be arranged directly above the crown of the furnace. A boiler is shown fitted above a furnace of the kind described in Specification 23534/09, [Class 51 (i), Furnaces and kilns, combustion, apparatus of].
Patent GB-1171203-A (GB)
Title: Sealed-Joint Assembly
Inventor: RUCK DERREK WILLIAM
IPC: F16J15/08
Filed: 1967-02-16
Abstract: 1,171,203. Joint-making packing; washers. DOWTY SEALS Ltd. 9 Feb., 1968 [16 Feb., 1967], No. 7541/67. Headings F2B and F2H. A sealed joint comprises a ring 5 arranged in a countersink in one of the two parts 1, 2 to be sealed against fluid pressure, the angle of generation G of the countersink being greater than the sum of the angle of friction of the contiguous surfaces of the ring and part 1 plus the angle of friction of the contiguous surfaces of the ring and part 2 but being less than 90 degrees minus the sum of the two angles of friction so that the ring in use can expand and contract within the limits of its elastic properties. The parts 1, 2 to be sealed may be of steel and the ring 5 made of H.T. steel or plastics. In threading the two parts together, the ring is forced down the inclined face; if the two parts are moved apart due to fluid pressure, the ring will expand and maintain sealing contact. In an example, the countersink angle of 30 degrees is chosen for conditions when both the angles of friction are 11 degrees (i.e. between limits 22 and 68 degrees).
Patent GB-268122-A (GB)
Title: Improvements in or relating to pumps
Filed: 1926-03-18
Abstract: 268,122. Woosnam. A., (Super Diesel Tractor Corporation). March 18, 1926. Single-acting piston pumps; materials, special; plungers; regulating delivery by by-passes.-A high-pressure pump suitable for supplying fuel to internal-combustion engines comprises a plunger G working in a cylinder F<1> of relatively porous material such as cast iron, surrounded by a cylinder F of impervious material such as steel. The plunger is conical at the end to diminish clearance and is made a fluid-tight fit in the cylinder F<1> by making it of the same crosssection as the cylinder, forcing it in under pressure, and reciprocating one relatively to the other until a smooth working fit is obtained. A bypass valve J' is arranged coaxially of the cylinder and is opened at a variable point in the delivery stroke by the pressure in the pump barrel.
Patent GB-287523-A (GB)
Title: Improvements in disc friction clutches
IPC: F16D13/71
Filed: 1928-03-12
Abstract: 287,523. Etablissements E. Desroziers. March 23, 1927, [Convention date]. Clutches, friction. -In friction clutches of the type comprising a flywheel or other driving-member 3, one or more intermediate driven discs 15, and a presserplate 11 acted on by the outer ends of radial levers 8 pivoted on a non- sliding plate 1, the levers engage slots 13 in, or an inturned lip on, a circumferential flange 11<a> of the presser-plate 11. The lever pivots 7 are carried in forks 6 on the outer face of the plate 1, which is pierced to receive driving-studs 2 and cups 4 housing the clutch springs 5. The levers 8 pass through slots 10 in the hub 9 of the plate 1 to engage notches 20 in a declutching-sleeve 19, the levers being provided with anti-rattle springs 15<a>. The disc or each disc is riveted to a boss 16 on the driven shaft 18. A thick facing 14 may be welded &c. to the presser-plate 11 in order to dissipate frictional heat.
Patent GB-271978-A (GB)
Title: Improvements in or connected with superchargers for the internal combustion engines of motor vehicles and the like
IPC: F02B33/00
Filed: 1926-03-19
Abstract: 271,978. Berk, F. W. March 19, 1926. Four stroke-cycle engines; pumps for gases.- An isolating device is placed between the carburettor and the engine, and is designed to isolate the supercharging compressor when it is not working and the engine is drawing its charge by suction from the carburettor. A double valve A, A' with seatings D, D<1> connects the outlet from the carburettor either directly to the engine manifold through the outlet E' or to the compressor through the outlet S'. In the position shown the compressor is not working and the engine suction holds the double valve with the lower valve A on its seat. When the compressor starts working it draws the double valve down and closes the direct connection between the carburettor and the engine. The compressor supplies the mixture to the inlet S<2>, the mixture flowing to the outlet E<1> past the valve A<2>. This valve is connected to a piston AS of larger diameter than the valve, the pressure of the mixture from the compressor acting on this piston to lift the valve, when the compressor works. The upper side of the piston is subject to atmospheric pressure and therefore holds the valve A<2> on its seat when the supply is direct from carburettor to engine. The valves may be of mushroom, piston, rotary or flap type, and according to the Provisional Specification may be actuated mechanically.