baber/WOPTO huggingface dataset:
Patent GB-1411123-A (GB)
Title: Integral turbo-compressor shock wave engine
Inventor: COLEMAN JR R R
IPC: F02C3/02
Filed: 1972-10-18
Abstract: 1411123 Gas turbine plant; pressure exchanges GENERAL POWER CORP 18 Oct 1972 [21 Oct 1971] 48075/72 Headings F1G and F1N The invention relates to a gas turbine engine comprising a rotor provided with rotor chambers in which both compression and expansion occur, the compression being effected by shock waves. The engine comprises a rotor 17 provided at its periphery with blades 27 which define rotor chambers 18 having divergent discharge nozzles 38. The rotor rotates within stator structure 29 which is formed to provide a series of inlet and outlet ports, viz. an air inlet port 12, a combustion gas inlet port 31, a gas exhaust port 19 and a compressed air discharge port 32; the stator is also formed with a series of hot gas discharge ports 34E, 35E, 36E, 37E and with hot gas re-entry ports 34R, 35R, 36R, 37R. The air inlet port 12 is provided with a series of guide vanes 13 which may be angularly adjustable. Air is supplied to the inlet port by means of a blower 15 and inlet passage 11, the air being compressed in the rotor chambers 18 by a series of shock waves as indicated in Fig.2 at 44, 50 and a reflected shock wave 51. The air so compressed is discharged through outlet port 32 and passes through chamber 33 and passage 55 to a combustion chamber 22 which comprises a fuel injector 24 and an igniter 25. The combustion gases so generated pass to gas inlet port 31 and so into the rotor chambers 18, the air and gas interface being as indicated at 48, Fig.2. The gases discharge from the rotor chambers 18 through the nozzles 38 thereby driving the rotor. The gases discharge through the ports 34E.... and are re-directed into the rotor chambers through re-entry ports 34R.... The gases finally discharge from the rotor chambers through nozzles 38 into the outlet 19 and to exhaust passage 20. The manner in which the shock compression is achieved is explained in detail. The engine may be controlled by means of members 78, 79, 80, Fig.4 which are disposed adjacent the trailing edge of the combustion gas inlet port 31, adjacent the trailing edge of the compressed air outlet port 32, and adjacent the leading edge of the compressed air outlet port 32, respectively, the members being movable so as to vary the areas of the ports. Other arrangements of control members associated with the ports are described. The compressed air passing through the passage 55 may be pre-heated in a heat exchanger 56 through which the exhaust gases are discharged as indicated in Fig.4. The engine may be started by utilizing air under pressure in container 59, the air passing to combustion chamber 22; the air container is refilled by tapping air from the passage 55 through line 58. The engine may be designed to provide shaft power or so as to provide jet thrust. Also any form of heating may be utilized and the cycle may be open or closed.
Patent GB-1511010-A (GB)
Title: Photodetection apparatus
IPC: H01J29/38
Filed: 1975-11-21
Abstract: 1511010 IR sensitive luminescent layer VARO Inc 21 Nov 1975 [2 Dec 1974] 48091/75 Heading C4S [Also in Division H1] A luminescent layer 38 includes neodymium to absorb IR e.g. at 1À06 Ám and emit radiation at 0À873 Ám. The host for the neodymium may be LaCl 3  e.g. La 1-x Nd x Cl 3  where x=0À01 to 1, silica glass, CaF 2  or yttrium aluminium garnet or oxide. Pr, Ho, Er and Dy may be used in addition to Nd. A fibre optic disc 42 and a filter 46 of Th or Si oxide are provided adjacent the layer 38. In an alternative embodiment (Fig. 3 not shown) a luminescent layer (48) including Ho is provided between layer 38 and the IR source but is separated therefrom by a dielectric filter (50). The structure 16 is used in an IR image conversion apparatus [Division H1].
Patent GB-1522257-A (GB)
Title: Casting of vitreous material
IPC: C03B19/02
Filed: 1976-11-19
Abstract: 1522257 Casting glass COMPAGNIE INTERNATIONALE DE MINERALLURGIE CIM 19 Nov 1976 [19 Nov 1975] 48350/76 Heading C1M Glass at a viscosity between 20 and 100 poises is cast into a mould containing a model composed of a material which is gasifiable at the temperature of the molten glass. The model preferably is of foamed polyethylene or polystyrene and the mould is formed of sand containing a resin binder. The glass is preferably a precursor for a glass-ceramic the crystallization taking place after casting by fluidizing the sand with a current of hot gas.
Patent GB-1261013-A (GB)
Title: Anti-lock brake valve
Inventor: MEACOCK WILLIAM JOSEPH
IPC: B60T8/42
Filed: 1967-10-24
Abstract: 1,261,013. Anti-lock brake valve and mechanism. W. J. MEACOCK, E. C. J. MAYFIELD, and D. S. RANDALL. 24 Jan., 1969 [24 Oct., 1967], No. 48370/67. Heading F2F. An interrupter valve located between the master cylinder and one or more slave cylinders is reciprocated by a cam means between open and blocked positions on application of the brakes, whereby the pressure in the slave cylinder(s) fluctuates between that supplied by the master cylinder and a reduced value at which the brakes are at least partially released. In the simplest form (not illustrated) of the invention, a cam acting directly on the lower end 40 of the piston 38 of the interrupter valve (to be described) is driven by an electric motor which is controlled by a switch contacted by the foot brake pedal in the same way as the switch operating the conventional stop lights. Alternatively, a separate hydraulic-pressureactuated micro switch unit could be incorporated in the hydraulic line between master cylinder and interrupter valve. In Fig. 2 (not shown) the cam is driven by an electric motor which is controlled by a microswitch which is actuated by a contact member at the upper end of a piston unit; the piston is raised by hydraulic pressure when the brakes are applied. As shown, a piston 16 is raised, as long as hydraulic pressure is applied at 22 from a master cylinder to the interior of a housing 12, to switch on through a contact 50 the motor of a cam 54 which indirectly causes periodic upward movement, assisted by a spring 36, of a piston 38, the corresponding downward movement of piston 38 being effected by the pressure then operative in the brake circuit. Holes 32 in the piston 38 and corresponding holes in a fixed sleeve 37 constitute the interrupter valve which in the up position (shown) permits operation of the brakes (connected at 24) and in the down position cuts off the fluid supply and effects enlargement of the brake circuit volume to at least partially release the brakes. When the brake pedal is released, the parts eventually resume the positions shown.
Patent GB-1190570-A (GB)
Title: Improvements in or relating to Hand-Propelled Wheeled Carriers.
Inventor: MEIKLEJOHN IAN GOODHALL
IPC: B62B1/04
Filed: 1966-10-28
Abstract: 1,190,570. Golf trolleys. I. G. MEIKLEJOHN & CO. Ltd. 23 Oct., 1967 [28 Oct., 1966], No. 48401/66. Heading B7B. A collapsible golf-bag trolley comprises a rod 2 having flattened ends 2a, 2b, and to which is pivoted a handle 5 and wheeled legs 3, 4, the ends 2a, 2b being locatable in a slot in the golf-bag base 8 and between flanges 7a on bag top 7 respectively, and there being a spring clamp 9 pivoted to top 7 which when resiliently passed over end 2b connects the bag to the trolley. A spring steel wish-bone strut 6 connects the handle with the legs to enable the trolley to collapse. The spring clasp 9 may be replaced by a toggle clip. The ends of the bag 7 and 8 may be made of plastics, metal pressings or castings.
Patent GB-1495542-A (GB)
Title: Digital pulse coulometric titrator
IPC: G01N31/16
Filed: 1973-10-17
Abstract: 1495542 Electro-chemical analysis by coulometric titration NATIONAL RESEARCH DEVELOPMENT CORP 16 Jan 1975 [17 Oct 1973] 48475/73 Heading G1N [Also in Division H3] In a method of coulometric titration, a series of electric current pulses of constant height and width is applied to electrodes 2, 3 of a coulometric cell 1, the number of pulses supplied being counted by a counter 7', and the end-point of the titration is detected during an interval between successive pulses. The electrolytic state of the cell is monitored between pulses to also ensure that a predetermined degree of stability in the state of the cell has been reached before a further pulse is applied, and to determine whether the end-point is being approached so that, at a predetermined "anticipation point" (i.e. a point at which the titration is at a predetermined nearness to the endpoint), the rate at which pulses are applied to the cell may be automatically decreased. A 1 MHz oscillator 9 feeding through a divider chain (8) Fig. 2 (not shown), supplies a chain of pulses to a logic circuit (6) Fig. 7 (not shown) which, in response to signals from end-point, stability, and anticipation point sensing circuits of a level sensing system 15 having sensing electrodes 13, 14 in the cell 1, controls a switching unit 4 to apply pulses to the electrodes 2, 3 of the cell. A constant current source 5 providing the power for the pulses to the cell 1 is switched to a dummy cell load during periods when no pulse is applied to the cell 1, to minimize transients. In Fig. 3, the voltage v from the sensing electrodes 13, 14 is converted at 16 to its modulus value which is supplied to sensing circuits 17-19 or 18-20. Titration end-point may be detected differentially by circuit 17, detailed in Fig. 4 (not shown), or potentiometrically by circuit 20. Circuit 18, containing a differentiator 30, modulus converter 31, and comparator 32 senses the stability of the electrolytic state of the cell 1. Circuit 19 is a comparator 65 for sensing the "anticipation point". The circuit outputs, in logic form, are supplied to the logic circuit 6.
Patent GB-1164315-A (GB)
Title: Improvements in and relating to a Circuit Arrangement for an Electro-Erosion Pulse Generator.
IPC: B23H1/02
Filed: 1966-10-28
Abstract: 1,164,315. Electro-erosion. INDUSTRIELLE ELEKTRONIK AGIE LOSONE BEI LOCARNO, A.G. F R. 28 Oct., 1966 [7 Sept., 1966], No. 48576/66. Heading B3V. [Also in Division H3] An electro-erosion circuit comprises at least two electronic switches connected in parallel with one or more erosion gaps and with one or more D.C. voltage sources and a unidirectional conducting device between the or each switch and the or a gap. In one embodiment a pair of switches 7, 12 are connected in parallel and with an erosion gap 3, 6. A diode 5, 13 is provided in each parallel line to the gap from a D.C. source 1 and each line can be shortcircuited by one of the switches. The switches are preferably transistors although a controlled rectifier or a valve may be used. The diode may be replaced by a thyristor, transistor, magnetostrictive element or a valve. The diode pair prevent high current flowing through one of the switches when only one of them is conductive. The switches are controlled by a common pulse emitter 9. In a second embodiment, Fig. 4 (not shown), the electrode is made of separate parts (6a), (6b), insulated from each other and connected in parallel. Any number of electrode parts may be connected in parallel, Fig. 5 (not shown), and be controlled by separate pulse emitters of different frequency so that a workpiece can be eroded by different degrees across its surface. In a further embodiment, Fig. 6, a single gap 3, 6 is fed through a pair of diodes 5, 28 from separate voltage sources 1, 26. The switches 7, 31 are actuated by separate pulse emitters 9, 32 which may be synchronized.
Patent GB-1397248-A (GB)
Title: Dental compositions
IPC: A61K8/25
Filed: 1971-10-20
Abstract: 1397248 Dentifrices BEECHAM INC 17 Oct 1972 [20 Oct 1971] 48671/71 Heading A5B Oral hygiene compositions (dentifrices, mouthwashes, toothpastes and the like) comprise conventional ingredients and, as sole or principal polishing agent, from 1 to 50% by weight of the composition of a silica xerogel having an average particle size of from 22 to 50 microns. The remainder of the composition consists of conventional materials, e.g. silica aerogels as thickeners, fluorine-containing compounds, flavours, foaming agents, softeners prophylactic and therapeutic agents.
Patent GB-1215938-A (GB)
Title: Apparatus for detecting deviation of railway tracks
Inventor: PLASSER FRANZ
IPC: B60B17/00
Filed: 1967-11-14
Abstract: 1,215,938. Aligning railway track. F. PLASSER. 30 Oct., 1967 [14 Nov., 1966], No. 49113/67. Heading B7N. [Also in Division G1] Apparatus for correcting the position of a railway track in the track plane comprises a wheeled chassis 1 with track shifting means 5 disposed at its longitudinal centre, front and rear trucks 8, 6 rigidly coupled to the wheeled chassis, a long chord 9 extending between the trucks 6 and 8, a short chord 10 extending between the rear truck 6 and the shifting means position 5 and measuring means at position M for comparing the deflection of the two chords. The apparatus can be used for correcting the position of straight or curved track and with adjusting means operating in response to distance travelled by the machine for correcting transitions between straight and curved track or vice versa. The measuring device includes a pair of potentiometers 14, 15 with sliders movable in dependance on the position of the chords 9 and 10. The output of the potentiometers is compared in meter 18 and the track at position 5 with the end of the short chord moved to obtain a predetermined measured relationship depending on the radius of track curvature. The adjusting means for correcting transition curves includes potentiometers 19, 20 and potentiometer 22 having a slider which is moved by cam wheel 27 as the machine moves into the curve. The means adjust the voltage supplied from potentiometer 14 associated with the long reference chord 9. Assume a move from straight track to curved track potentiometer 19 is set to zero and potentiometer 20 to a value which is a function of the chord deflection in the track curve. The cam 27 is set with point B in contact with the piston 26 connected to the slider of potentiometer 22 and as the machine moves into the curve the cam rotates moving the slider of potentiometer 22 from its zero position, giving no adjustment, to its other end position, when the curve proper is reached, giving the full voltage from potentiometer 20.
Patent GB-1062779-A (GB)
Title: Apparatus for triggering a desired operation
IPC: G06F3/09
Filed: 1963-12-12
Abstract: 1,062,779. Electric selective signalling. ANSTALT EUROPAISCHE HANDELSGESELLSCHAFT. Dec. 12, 1963 [Dec. 14, 1962], No. 49145/63. Heading G4H. A triggering device (e.g. for controlling a printer) comprises magnetic cores 8A, 8B ... into which information is entered by key switches 7a, 7b ... and from which it is read by a scanning arm 4 contacting plates 20A, 20B ... and operating, with contact 10 closed, to cause impulses from a generator 11 to change back the magnetic condition of any conditioned core 8A, 8B ... and hence produce a pulse in a conductor 16 for initiating the desired operation. In the illustrated embodiment the pulse in conductor 16 causes an impulse generator 12 to deliver a pulse which operates an electromagnet 13 for attraction of an armature 15a and hence presses a paper tape 15 against a type wheel 3 inked by a wheel 6. In an alternative embodiment the scanning arm 4 is replaced by a rotating permanent magnet which sweeps past ring-shaped induction coils in which a voltage pulse is generated to augment a pulse derived from an impulse generator to change the magnetic condition of the appropriate magnetic core. The permanent magnet may be replaced by a revolving electromagnet rendering the impulse generator superfluous. The impulse generator 11 may have revolving movement generated by a magnet synchronously driven with the former revolving magnet and co-operating with inductive coils equal in number to the read out system.
Patent GB-1021377-A (GB)
Title: Transistor buffer-stage
IPC: H03F3/50
Filed: 1963-12-13
Abstract: 1,021,377. Transistor amplifying circuits. STANDARD TELEPHONES & CABLES Ltd. Dec. 13, 1963 [Dec. 19, 1962], No. 49426/63. Heading H3T. In a transistor buffer stage for coupling two circuits of which the respective output and input impedances differ, the input terminals are shunted by a voltage divider R1, R2, the base electrode of the transistor is coupled for alternating current to the junction point of resistors R1 and R2, the collector-emitter path of the transistor is connected for alternating current in series with resistor R3 across the input terminals and the output is taken from across the collector and emitter electrodes. Potential divider R4, R5 provides bias for the base electrode.
Patent GB-1321568-A (GB)
Title: Microdispensing process and apparatus
IPC: G01N1/00
Filed: 1971-10-26
Abstract: 1321568 Dispensing apparatus; automatic analysis H NOLL 26 Oct 1971 [26 Oct 1970] 49596/71 Heading B1X Apparatus for dispensing precise volumes of liquids or gels comprises a dispensing conduit connectable to a liquid or gel reservoir and terminating in a dispensing tip; means adjacent at least a segment of the conduit and providing a passageway therealong; and flushing means communicating with said passageway for delivering a flushing liquid thereinto responsive to a pre-determined signal, whereby the flushing liquid rinses from the dispensing tip any liquid or gel collected externally thereon to complete the volume of liquid or gel dispensed. The flushing liquid may contain further reagents. As shown, the liquid to be dispensed is metered via nozzle 24, and rinsing fluid is supplied via inlet 42 so as to surround and rinse the nozzles.
Patent GB-1484158-A (GB)
Title: Separator for an electric storage cell
IPC: H01M50/491
Filed: 1974-11-15
Abstract: 1484158 Battery separators COMPAGNIE EUROPEENNE D'ACCUMULATEURS 15 Nov 1974 [21 Nov 1973] 49603/74 Heading H1B A separator for a lead-acid accumulator plate 1 comprises 2 microporous, insulating plates 2, 3 connected together wholly or partly around their edges by means of flat connecting members 5, 6. The members 5, 6 are preferably of a polyethylene copolymer to which synthetic acrylic rubber is added, the material being applied around the edges of plates 2, 3 at an elevated temperature and being allowed to solidify and become rigid on cooling. The sheets 2, 3 may be of a phenolic resin containing polyester, or they may be of P.V.C. foam and have pores of a radius in the range 1-7 Á and a porosity in the range 75- 80%.
Patent GB-1393308-A (GB)
Title: Manfuacture of sprocket members
IPC: B21H5/02
Filed: 1972-10-31
Abstract: 1393308 Rolling; forging ROCKWELL INTERNATIONAL CORP 31 Oct 1972 [23 Dec 1971] 50113/72 Headings B3M and B3H A sprocket or similar toothed power transmission element is made from a circular blank 20, Fig. 4, by contacting the periphery of the blank with at least one forming tool to cause axial and radial flow of the blank material, e.g. steel, to produce teeth which are wider than the blank width "t", Fig. 2. The forming tools may be roller dies 26, 28, rack dies used in pairs or singularly or one or more radially acting forging dies. The roller dies 26, 28 are driven synchronously with the mandrel 24 and moved gradually towards the mandrel axis A. More than one blank may be cold formed at a time. In one embodiment there are more than two roller dies which are arranged to move around the blank in a planetary motion. The teeth may be formed in two or more stages using different dies.
Patent GB-1237325-A (GB)
Title: Improved helically wound tubing
IPC: F16B4/00
Filed: 1969-10-13
Abstract: 1,237,325. Making tubing; coiling; seaming; perforating. BOWATER FLEXPIPE Ltd. 13 Oct., 1969 [17 Oct., 1968; 12 May, 1969], No. 50122/69. Headings B3A, B3E and B3J. [Also in Division F2] A method for the manufacture of helically wound metal tubes comprises longitudinally corrugating aluminium strip 1, see Fig. 1, by rolls (not shown), after which ribs 2 and 3, Fig. 4, are formed by rolls 4, the ribs 2 and 3 being deepened by rolls 5, 6 and 7. The edge margins of the strip are then turned down to form a channel element 11, see Fig. 6, and a flange element 12 having convexities 10. The strip is perforated by passing it between a spiked roll 37, see Fig. 16, and a backing roll 36 which can be moved towards or away from each other by operating a ram 43 which pivots a bracket 39 about a pivot 41. As the strip is fed to a forming head 17 it passes between rolls 21 and 22, see Fig. 8, and is coiled about a mandrel 18 with the flange 12 lying in the channel 11. The strip then passes between rolls 23 and 20 which deform the ribs 2 and 3 inwardly to partly close the mouth of the channel 11. As the partly formed seam continues around the mandrel it again passes rolls 21 and 22 which crush the seam flat. In a second embodiment, Fig. 13, a driven, grooved forming roll 23a provided with a V- groove 30 inwardly deforms the ribs 2 and 3 and the partly formed seam is flattened by a roll 31 placed at the end of the mandrel. In a third embodiment the strip has an L- shaped flange 51, Fig. 18, formed on one edge and a U-shaped channel 52 formed on the other edge, the channel 52 having its open mouth directed inwardly of the formed tube. The flange 51 is mated with the channel 52 and as the strip passes around the mandrel, it passes between rolls which nip-in the base of the channel to partially close its mouth as shown at A in Fig. 18. As the seam passes further around the mandrel it is finally flattened by the rolls 21, 22. In a fourth embodiment one edge of the strip has a pair of ribs formed on it which are outwardly directed with respect to the tube (Fig. 19, not shown), and the other edge has a pair of channels formed with their mouths facing inwardly with respect to the tube. As the strip is convoluted about the mandrel, the ribs are first mated with the channels after which the channels are spread apart and finally they are flattened down to form the locked seam.
Patent GB-501487-A (GB)
IPC: C09F9/00
Abstract: 501,487. Non-discolouring metal salts of organic acids; driers. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. April 29, 1938, No. 12912. Convention date, May 13, 1937. [Classes 1 (iii) and 95] Metal salts of organic acids having more than six carbon atoms in the molecule, such as naphthenic acids, saturated or unsaturated fatty acids, resinic acids, and especially heavy metal salts of. naphthenic or abietic acid, are rendered non-discolouring by additon to the substances from which the salts are to be prepared or to the salts themselves or solutions thereof of 0À02 to 0À3 up to 1 per cent of one or more antioxidants comprising polyamino-compounds, aminophenols and the alkyl derivatives thereof, naphthols, or tar oil fractions comprising mainly phenolic compounds. Diamines such as p-phenylenediamine, 1.5 naphthylene diamine, or 1.8 naphthylenediamine, amino phenols such as o- or p-aminophenol, or methylated p-aminophenol, and wood tar fractions boiling above 240‹ C. may be used, a mixture of'80 per cent of methylated pamino phenol and 20 per cent of methylated p-phenylenediamine being particularly effective. Salts referred to are the cobalt, manganese, and lead salts which are used as driers and the copper and mercury salts which are used as constituents of wood-preserving agents and as insecticides. Specification 370,550 is referred to. The Specification as open to inspection under Sect. 91, comprises also the following subject matter : any small amount (unspecified) of the antioxidant may be used, and additional antioxidants specified are naphthylamines, specifically #-naphthylamine, diphenylthiourea, benzylamino phenol, and 1 amino 3, 5, or 7 naphthol. An example of the treatment of cobalt linoleate is also included. This subject-matter does not appear in the Specification as accepted.