baber/WOPTO huggingface dataset:
Patent GB-1396112-A (GB)
Title: Strip structures
IPC: B29C48/305
Filed: 1972-06-27
Abstract: 1396112 Trimstrip STANDARD PRODUCTS CO 27 June 1972 [22 Sept 1971] 50441/73 Divided out of 1396111 Heading B6G A trimstrip adapted to be interengaged with an underlying support comprises an elongate body portion of plastics material, a projection extending from the body portion for interengagement with a complementary recess in the underlying support, the projection being T- shaped in cross-section, and metal stabilizing means embedded in and longitudinally coextensive with the body portion to stabilize the plastics material of the body portion against longitudinal shrinkage without affecting the flexibility of the strip. In the embodiment as shown in Fig. 1 the stabilizing means is a wire strand 28 embedded in the body portion. Preferably the stabilizing means is a single steel wire strand. More than one wire component may be employed and the wire or wires may be stranded or of single strand structure.
Patent GB-1535302-A (GB)
Title: Energy-beam engraving method and an apparatus for carrying it out
IPC: H01J37/302
Filed: 1975-12-10
Abstract: 1535302 Removing metal by fusion STEIGERWALD STRAHLTECHNIK GmbH 10 Dec 1975 [10 Dec 1974] 50685/75 Heading B3V To engrave in the surface of a workpiece, particularly an intaglio printing cylinder, pits of different cross-sectional area at the surface, the surface is subjected to the action of a focused energy beam of substantially constant power, for shorter and longer periods for smaller and longer pits respectively with the focal plane near to the surface for smaller pits than for larger pits. Preferably for a range of pit sizes the focal plane is at or near the surface for the smallest and is displaced further into the workpiece with increasing pit size. The energy density is substantially constant across the beam cross-section for small sizes, decreasing with an increase in distance from the beam axis for large sizes. As shown, Fig. 3, an electron beam 30 from a discharge device 28 in a housing 24 under vacuum is deflected by electrostatic means 32 to the broken line, inoperative position to end the engraving action. A signal 38 to a deflection circuit 36 controls the deflection means. Coarse focusing of the beam is carried out by a main focusing coil 40 and fine focusing and changing of the focus setting in accordance with the pit size by an auxiliary coil 44 supplied by a variable current source controlled by a signal 48 from the same source as signal 38. Preferably the main coil focuses the beam for the minimum or maximum for a series of pits, control of the auxiliary coil then being used to vary the focal plane. Instead of the electron beam, an ion beam or a beam of electromagnetic energy such as a laser beam may be used.
Patent GB-1450943-A (GB)
Title: Parting off tools and inserts therefor
IPC: B23B27/04
Filed: 1973-11-01
Abstract: 1450943 Cutting tools WARNER & SWASEY CO 1 Nov 1973 [29 Nov 1972] 50899/73 Heading B3B A parting-off tool comprises a body 20, a support blade 30, a clamp 40, and a cutting insert 50, blade 30 being releasably secured in a pocket 24, and having a U-groove 31 into which the insert is received. Pocket 24 has an overhanging lip 25, and an insert back-up member 27  is located in groove 31 and its position is adjustable by a screw (28), Fig. 4 (not shown). Insert 50 is T-shaped, Fig. 6. In a modification, Fig. 8, two inserts 40, 50, are placed together, or these inserts may be integral with each other. Insert 50, Fig. 6, may have portions 52, 51, brazed together.
Patent GB-1536157-A (GB)
Title: Corona power supply circuit
IPC: H02M3/335
Filed: 1975-12-12
Abstract: 1536157 D.C.-D.C. converters COULTER SYSTEMS CORP 12 Dec 1975 [13 Dec 1974 20 Oct 1975] 51018/75 Addition to 1477202 Heading H2F In a power supply, e.g. for producing corona in portable electro-photographic apparatus, an oscillator 24 is coupled to a pulse shaping circuit 48 which includes a switching device such as transistor 54 arranged to become conductive on one half cycle from the oscillator 24 and non- conductive on the other half cycle, device 54 switching current into the primary of a transformer 68 the secondary of which is coupled to a voltage multiplying rectifier 66 arranged to produce the corona. The pulse shaping circuit 48 is arranged to draw no current from the D.C. source 12 except during the half cycles of oscillator 24 with device 54 is conductive. The corona current is monitored at 132 so that the pulse shaping circuit 48 is inhibited when the corona current reaches a predetermined magnitude. As described, the circuit is generally similar to that described in Specification 1,477,202; transformer 68 being saturated by each conductive period of transistor 54 and providing an oscillation at the end of each saturating pulse which oscillation is applied to the voltage octupler 66 so as to provide 8 kV at 104 for the corona electrode 114 positioned adjacent the electrophotographic film. The corona current is passed via potentiometer 120 and monitored by a NAND gate 132 the output of which is arranged to inhibit the oscillation from the NAND gate 38 when the corona current exceeds predetermined limits. A feedback circuit 138 ... 144 tends to increase the response time of gate 132.
Patent GB-1254285-A (GB)
Title: Rotary water sprinkler
Inventor: LEWIS BRIAN ALFRED
IPC: B05B3/04
Filed: 1968-10-29
Abstract: 1,254,285. Water sprinkler. WRIGHT RAIN Ltd. 21 Oct., 1969 [29 Oct., 1968], No. 51225/ 68. Heading B2F. A rotary water sprinkler in which water from a nozzle 36 on the rotatable body portion 21 thereof impinges against the spoon shaped head 11 of a swing arm 10 has a detachable boss 22 fitting in an enlargement 13 in the swing arm and arranged to be mounted on a bearing pin 24 on the body portion 21, the arm 10 and boss 22 having interengageable locking means. The arm or boss may have circumferentially spaced tongues 25 corresponding with axially extending throughways 17 on the boss or arm giving access to an undercut recess 18, the two components thus being held together by a bayonettype fixing. The boss and arm may be made from materials having different wearing characteristics. A coil spring 33 surrounding the boss 22 causes the arm to spring back periodically after deflection by the water jet such that a tail portion 12 on the arm engages an anvil 37 on the body portion 21 causing the latter to move angularly an incremental amount to enable the area being watered to be varied. The sprinkler may have a sectoring mechanism whereby the increments occur through a predetermined sector only and then returned to its starting position.
Patent GB-1091017-A (GB)
Title: Magnetic record apparatus
Inventor: REED GORDON HOWARD
IPC: G11B5/48
Filed: 1963-12-31
Abstract: 1,091,017. Track changing arrangements. TELEVISION RESEARCH Ltd. Dec. 29, 1964 [Dec. 31, 1963], No. 51270/63. Heading G5R. Track changing of a magnetic head 5 across a tape 14 is effected by means of a cam wheel 16 which, when rotated, moves a follower 22 attached to the head 5. The wheel 16 may be rotated manually or automatically to one of a number of positions defined by a pin and hole locating device 20, 21. For automatic operation, a sensing device associated with the tape senses a marker, e.g. a tone, a conductive coating, or the absence of a signal, to actuate a solenoid which moves a rack 26 to rotate the pinion 25 attached to the cam wheel 16. The rack is pivoted at one end and is spring loaded into engagement with the pinion, Fig. 3 (not shown) to provide a free wheel action which allows the solenoid to return without moving the cam wheel, and also allows the manual rotation of the cam wheel. Movement of the head 5 is maintained parallel to the tape 14 by means of two parallel spring arms 6, 7 coupled between the head 5 and a support 10.
Patent GB-1077518-A (GB)
Title: The generation and acceleration of plasma
IPC: H05H1/16
Filed: 1963-12-21
Abstract: 1,077,518. Discharge apparatus. SIEMENSSCHUCKERTWERKE A.G. Dec. 16, 1964 [Dec. 21, 1963], No. 51280/64. Heading H1D. A device for the electrodeless generation and/or acceleration of plasma comprises an insulating tube 3, an induction coil 6, a magnetic core 5 providing a magnetic pole inside the tube and an outer ring-shaped pole surrounding the tube, and a field coil 1 for exciting the core. In the form shown, the coil 1 is surrounded by a conductive screening cylinder 2, e.g. of brass. Alternatively, the coil may be mounted in a hollow central limb of the core 5 inside the tube 3, or on a central or side limbs of the core 5 outside the tube 3 (Fig. 2, not shown). In the cases where the coil is shielded it may be superconductive. The tube 3 is filled, with a neutral gas at a pressure of a few mm. of Hg, and plasmoids are generated as described in Specification, 1,049,667. Highfrequency, pre-ionization may be utilized. If one or more rapidly closing gas inlet valves are fitted in the wall of the tube 3 the device may be used to eject plasmoids into a vacuum.
Patent GB-1041550-A (GB)
Title: Improvements relating to linings of furnaces, ovens, kilns and the like
IPC: F27D1/00
Filed: 1964-12-21
Abstract: 1,041,550. Furnace linings. R. W. ULBRICH. Dec. 21, 1964 [Jan. 3, 1964], No. 51942/64. Heading F4B. A lining 7 for a furnace, oven, kiln or the like 1, comprises a plurality of juxtapositioned mesh screens. The inner screens are of coarser mesh than the outer screens. The screens are surrounded by an insulating lining 8 and shell 9, all carried by a base 6 which incorporates heating means 4. The base carries charge support means 3.
Patent GB-1085709-A (GB)
Title: Method for the recovery of a combustible gas during refining pig iron
IPC: C21C5/38
Filed: 1964-12-22
Abstract: The combustible gas obtained during the refining of pig-iron by means of oxygen is collected mixed with an oxygen-containing gas for partial combustion thereof, passed through a waste-heat boiler and then to storage, the oxygen-containing gas containing less oxygen than air, preferably between 5 and 12% oxygen, and being added in such varying amounts that the waste heat boiler produces a constant amount of steam during the refining period.  In an example in a refining period of 20 minutes, the amount of oxidizing gas added for partial combustion was reduced from the 1st to 13th minute of the period, was nil between 13th and 16th minute and thereafter gradually increased. The control may also produce a gas of constant calorific value passing to storage.
Patent GB-1189490-A (GB)
Title: Spare Wheel Carrier Assemblies in Motor Vehicles
Inventor: KORNER REGINALD JOHN
IPC: B62D43/00
Filed: 1967-11-18
Abstract: 1,189,490. Spare wheel carrier. BRITISH MOTOR CORP. Ltd. 1 Nov., 1968 [18 Nov., 1967], No. 52536/67. Heading B7J. A motor vehicle spare wheel carrier assembly mounted below the vehicle boot floor panel 8 comprises a carrier frame 1 pivoted about a substantially horizontal axis via brackets 7 and capable of securely holding a wheel 2; a cable 10 attached to the frame 1, for lowering and raising the frame, the cable passing through an aperture in the panel 8 and over a pulley 11 in a housing 12 mounted on a boot panel 13; and a cable operating lever 16 mounted on a pivot 17 on the housing 12. The carrier frame 1 consists of three steel bars 3, 4, 5, of rectangular cross-section, welded together, the bar 3 being pivotally attached at its ends to the brackets 7, and the outer end 9 of the bar 5 being attached to the cable 10. The cable 10 after passing over the pulley 11 is attached by means of a pin 15 to the free end of an arm 14 contained within the housing 12. The arm 14 is rigidly fixed to the lever 16 at the pivot 17. When the frame is in the raised position (i.e. that shown in solid lines in Fig. 2) the cable 10 lies entirely below the pivot 17 so that the weight of the frame acts so as to keep the lever 16 in the position shown in solid lines in Fig. 2. To prevent corrosion and as an anti-theft measure, that portion of the cable 10 which lies between the carrier frame 1, when in the raised position, and the vehicle floor 8 is surrounded by a protective cover 19.
Patent GB-1151488-A (GB)
Title: An Identification Card for use in an Identification System
IPC: G06V40/13
Filed: 1966-04-29
Abstract: 1,151,488. Identity cards. SIBANY MFG. CORP. 29 April, 1966 [5 May, 1965], No. 52622/68. Divided out of 1,150,511. Heading B6A. An identity card for use in an identification system described in Specification 1,150,511 to identify an individual whose fingerprint is provided, comprises a support member 11 having thereon a coded portion of the individual's fingerprint 1 with a reference line 4 drawn therethrough, said coded portion comprising a series of parallel lines 6 representing the widths W, W 1  of the areas of intersection 5 as taken along one direction X and elongated in a direction Y extending at an angle thereto. The coded lines 6 are defined by a contrast between transparent and opaque portions of the support member 11 and each line is of uniform width. As described the lines 6 are at right angles to the direction Y.
Patent GB-1358361-A (GB)
Title: Fluid pressure power actuator
IPC: F15B15/08
Filed: 1972-11-15
Abstract: 1358361 Fluid-pressure actuators INSTITUTE FOR INDUSTRIAL RESEARCH and STANDARDS and RG REES 15 Nov 1972 [15 Nov 1971] 52814/72 Heading F1D A fluid-pressure actuator comprises a collapsible tube 1, Figs.2, 3, which is nipped between a pair of rollers 43, 44 mounted in a carriage 41, 49 so that when fluid under pressure is introduced into the tube through a pipe 30 the carriage is caused to slide along in a casing 2. The roller 43 is adjustable and the carriage is guided by sliders 42. An end plug 13, Fig.4, is provided at each end of the actuator. Each one comprises an adjustable throttle valve 24 and a spring-loaded piston 17. When pressure fluid is admitted through the pipe 30 the piston 17 is moved to the right so that the inflow of fluid is unrestricted. Exhaust of fluid is throttled because the piston remains in the position shown. The rollers may be replaced by sliders of brass or similar soft metal suitably lubricated.
Patent GB-1147606-A (GB)
Title: Improvements relating to Rotary Hydraulic Pumps or Motors
Inventor: WHITE HOLLIS NEWCOMB JR
IPC: F04C2/10
Filed: 1966-02-24
Abstract: 1,147,606. Rotary pumps and motors. H.N. WHITE, JR. H.C. WHITE and H. N. WHITE. Feb. 24, 1966 [Feb. 24, 1965], No; 52866/65. Heading F1F. A rotary hydraulic pump (or motor) comprises an internally-toothed stator 53, Fig. 1, fixedly mounted within a casing 50 and an externallytoothed rotor 57 with one less tooth connected by a operating member 95 splined at either end to a drive shaft (or driven shaft) 90 so that the rotor besides rotating about its own axis once, also orbits about the axis of the stator six times to vary the volume of chambers A..... G, there being six teeth on the rotor. The rotor and stator are abutted on one side by a plate 62 closing the chambers through which the operating member 95 passes and on the other side by a plate 64 having a plurality of circumferentially-spaced passages 81, Fig. 3, equal in number to the number of teeth on the stator, viz seven, which communicate the chambers A..... G with an inlet port 83 and outlet port 84 extending arcuately around a valve member 70 rotatably mounted on a pin 86 supported in an end cover 75 of the casing and rotatable by means of an extension 99 of the operating member 95 so that the valve member rotates once for each orbit of the rotor. In order that the drive between the shaft extension and the valve member be effective dimensions for the pin and the end of the extension are chosen such that the following equation is satisfied:- where R 1  is the radius of the pin 86, R 2  the radius of the end of the extension 99, e the eccentric throw of the extension 99 with respect to the pin 86 and k 1 , k 2  coefficients of friction between the pin and extension and the holes which they engage.
Patent GB-1520749-A (GB)
Title: Measuring partial pressure of sodium vapour
IPC: G01M3/26
Filed: 1975-12-29
Abstract: 1520749 Detecting partial pressure of sodium;  detecting leaks in pipes WESTINGHOUSE ELECTRIC CORP 29 Dec 1975 52970/75 Heading G1N A method of measuring the partial pressure of sodium vapour (e.g. to detect leaks of sodium coolant in a nuclear reactor) comprises heating a thermal ionizer element, such as an electrically heated filament of thoriated iridium, introducing a carrier gas to the region of the element, applying a potential between the element and an ion collector and measuring the current therebetween. The partial pressure is then calculated using the equation:- where: I = measured current, amps. D= element diameter, cm. L= element length, cm.  P Na = partial pressure of sodium vapour, atom. w= work function of element, V. IP=ionization potential of Na, V. T= element temperature, ‹K. γ = (3.513 x 10<SP>22</SP>) p  (MT*)<SP>-¢</SP> number of molecules/cm<SP>2</SP> sec.  where p = carrier gas pressure, mm Hg. M = molecular weight of carrier gas. T*= temperature of carrier gas, K.
Patent GB-1533060-A (GB)
Title: Level indicating device for a liquid contained in a reservoir
IPC: G01F23/16
Filed: 1976-12-20
Abstract: 1533060 Liquid level indicators; temperatureresponsive actuating elements SOC ANON D B A 20 Dec 1976 [16 Jan 1976] 53078/76 Headings G1D and G1H [ Also in Division F2] A device for indicating the level of liquid in a reservoir 19 comprises a tube 10 which extends to the bottom of the reservoir, a manometer 14 and a gas pressure source 12 including a gas chamber 16 containing a heater 54 and which is connected either to ambient or to the manometer via an electrically operated valve 58. Unenergized, the valve 58 is spring-biased upwards to connect the chamber to ambient. To determine the liquid level, switch 34 is closed and current passes to the heater wire 54 via spring strip 48 and a wire 52. Initially wire 52 expands and allows the spring 48 to move the valve 58 down closing the passage 20 to ambient and opening passage 59 to the manometer. Air in the chamber 16 is heated and pressure increases until it escapes through pipe 10. This pressure is indicated by the manometer. The device is used to indicate oil level in an I.C. engine. Once the engine is running oil pressure opens contacts 38 and de-energizes both the device and an oil warning lamp 36. The heater circuit includes a resistor 56 whose resistance increases with temperature thereby reducing the current if the device is energized for too long a time.
Patent GB-1126579-A (GB)
Title: Continuous production of glutamic acid by fermentation
IPC: C12P13/14
Filed: 1965-12-15
Abstract: 1,126,579. Glutamic acid. MERCK & CO. Inc. 15 Dec., 1965 [5 Jan., 1965; 29 Nov., 1965], No. 53275/65. Heading C2C. A continuous method for the production of L-glutamic acid uses two or three vessels placed in series relationship. The first vessel is used as a growth-stage vessel in which biotinrequiring strains of L-glutamic acid-producing micro-organisms are grown at a constant rate on a continuously replenished medium containing biotin or a precursor or analogue thereof having similar growth promoting properties. Culture broth from the first vessel is fed at a constant rate to a production stage vessel or successively to transition and production stage vessels where growth inhibiting conditions are applied either by deplenishment of nutrient medium or by simultaneous introduction of growth inhibitor along with further nutrient medium. Continuous aeration and agitation are also applied at this stage and growth-inhibited culture medium is continuously withdrawn and L-glutamic acid or a salt thereof is recovered from said medium.
Patent GB-534916-A (GB)
Abstract: 534,916. Vitamin B<SP>6</SP>. MERCK & CO., Inc. Dec. 13, 1939, No. 32111. Convention date, Dec. 27, 1938. [Class 2 (iii)] Vitamin B<SP>6</SP>, 3: 4-di(hydroxymethyl)- 5-hydroxy-6-methylpyridine, is prepared by a sequence of steps comprising (1) condensing ethoxyacetylacetone with cyanacetamide, (2) hydrolyzing the resulting 3-cyano-4-ethoxymethy]-6-methylpyridone-2 to form the lactone of 3 - carboxy - 4 - hydroxymethyl - 6 - methylpyridone-2, (3) treating the lactone with nitric acid to give the 5-nitro compound, (4) chlorinating the latter, e.g., with phosphorus pentachloride, (5) reducing the lactone of 2 - chloro - 3 - carboxy - 4 - hydroxymethyl - 5- nitro-6-methylpyridine so obtained, e.g., by means of hydrogen in the presence of palladium and platinum oxide as catalyst until 4 molecular equivalents of hydrogen have been absorbed, whereby the lactone of 3-carboxy-4-hydroxymethyl - 5 - amino - 6 - methylpyridine is produced, (6) diazotizing the latter to form the corresponding 5-hydroxy compound, and (7) reducing the said compound, e.g., with sodium amalgam or tin and hydrochloric acid, or with hydrogen under pressure in the presence of copper chromite. In a modification of the process, step (5) may be interrupted when only 3 molecular equivalents of hydrogen have been absorbed and the resulting lactone of 2-chloro- 3 - carboxy - 4 - hydroxymethyl - 5 - amino - 6 - methylpyridine isolated and subjected to further hydrogenation to eliminate the chloro group. An example is given. ' The Specification as open to inspection under Sect. 91 also refers to the use of alkoxyacetylacetones in step (1), and describes the interaction of methoxyacetylacetone, prepared by reacting methylmethoxyacetate and acetone in the presence of sodium, with cyanacetamide to produce 3 - cyano - 4 - methoxymethyl - 6 - methylpyridone-2. This subject-matter does not appear in the Specification as accepted.
Patent GB-1352758-A (GB)
Title: Flaw detector
IPC: G01N27/90
Filed: 1971-11-18
Abstract: 1352758 Flaw detectors REPUBLIC STEEL CORP 18 Nov 1971 [18 Nov 1970] 53631/71 Heading In a flaw detector having a search coil 36 connected to an oscillator 14 whose output is rectified in a circuit 16 to control an indicating system, the oscillator 14 includes an operational amplifier 38 whose inverting input is connected to a negative feedback loop including a resistor 44 and potentiometer 42, and whose non-inverting input is connected to the coil and to a positive feedback resistor 50. In this manner, high operational stability is provided, and is further improved by providing an automatic gain control circuit 32 between the output of the rectifier 16 and the inverting input of the amplifier 38. As shown, the output of the rectifier is supplied, via a buffer 18, to two channels, each including an amplifier 20 or 22, a comparator circuit 24 or 26 having different response levels, and an indicating circuit 28 or 30.